+++ /dev/null
-Makefile
-example
-minigzip
-foo.gz
-Debug
-Release
+++ /dev/null
-2001-03-14 Derek Price <derek.price@openavenue.com>
-
- * Makefile.in: Regenerated
-
-2000-12-21 Derek Price <derek.price@openavenue.com>
-
- * .cvsignore: Added the foo.gz file created by 'make check'
- * Makefile.in: Added support for Automake targets
-
-2000-10-31 Derek Price <derek.price@openavenue.com>
-
- * Makefile.in (DISTFILES, test, libz.a): propogate local (CVS)
- zlib mods to the most recent version of zlib (1.1.3).
-
-1999-05-06 Jim Kingdon <http://www.cyclic.com>
-
- * Makefile.in (DISTFILES): Remove zlib.mak.
- * zlib.mak: Removed; we are back to a single makefile for
- Visual C++ version 4.
-
-1999-04-26 Jim Kingdon <http://www.cyclic.com>
-
- * Makefile.in (DISTFILES): Add zlib.dsp zlib.mak.
-
-1999-04-26 (submitted 1999-03-24) John O'Connor <john@shore.net>
-
- * zlib.dsp: new file. MSVC project file used to build the library.
-
- * zlib.mak: new file. Makefile for building from the command-line.
-
- * .cvsignore: Added entries to ignore directories generated by the
- NT build, Debug and Release.
-
-1999-02-24 Jim Kingdon <http://www.cyclic.com>
-
- * Makefile.in (DISTFILES): Add .cvsignore.
-
-Tue Mar 18 13:05:37 1997 Jim Meyering <meyering@totoro.cyclic.com>
-
- * Makefile.in (DISTFILES): Change glob pattern so that it doesn't
- match `Makefile'. Add Make_vms.com explicitly.
-
-1997-01-01 Fred Fish <fnf@ninemoons.com>
-
- * Makefile.in (CC): Use @CC@ rather than hard coded "cc".
- (CFLAGS): Use @CFLAGS@ rather than hard coded "-O".
- (LDFLAGS): Use @LDFLAGS@ rather than hard coded "-L. -lz".
- (prefix): Use @prefix@ rather than hard coded "/usr/local".
- (example, minigzip): Use $(LIBS) when linking.
-
-Wed Sep 11 00:59:44 1996 Jim Kingdon <kingdon@harvey.cyclic.com>
-
- * build_zlib.com: Add infblock.c and infcodes.c.
-
- * build_zlib.com: New file.
-
- * Makefile.in (DISTFILES): Add build_zlib.com.
-
-Fri Aug 16 16:07:38 1996 Norbert Kiesel <nk@col.sw-ley.de>
-
- * Makefile.in (installdirs): new (empty) target
-
- ChangeLog file for zlib
-
-Changes in 1.1.3 (9 July 1998)
-- fix "an inflate input buffer bug that shows up on rare but persistent
- occasions" (Mark)
-- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
-- fix gzseek(..., SEEK_SET) in write mode
-- fix crc check after a gzeek (Frank Faubert)
-- fix miniunzip when the last entry in a zip file is itself a zip file
- (J Lillge)
-- add contrib/asm586 and contrib/asm686 (Brian Raiter)
- See http://www.muppetlabs.com/~breadbox/software/assembly.html
-- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
-- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
-- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
-- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
-- added a FAQ file
-
-- Support gzdopen on Mac with Metrowerks (Jason Linhart)
-- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
-- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
-- avoid some warnings with Borland C (Tom Tanner)
-- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
-- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant)
-- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
-- use libdir and includedir in Makefile.in (Tim Mooney)
-- support shared libraries on OSF1 V4 (Tim Mooney)
-- remove so_locations in "make clean" (Tim Mooney)
-- fix maketree.c compilation error (Glenn, Mark)
-- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
-- new Makefile.riscos (Rich Walker)
-- initialize static descriptors in trees.c for embedded targets (Nick Smith)
-- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
-- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
-- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
-- fix maketree.c to allow clean compilation of inffixed.h (Mark)
-- fix parameter check in deflateCopy (Gunther Nikl)
-- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
-- Many portability patches by Christian Spieler:
- . zutil.c, zutil.h: added "const" for zmem*
- . Make_vms.com: fixed some typos
- . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
- . msdos/Makefile.msc: remove "default rtl link library" info from obj files
- . msdos/Makefile.*: use model-dependent name for the built zlib library
- . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
- new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
-- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
-- replace __far with _far for better portability (Christian Spieler, Tom Lane)
-- fix test for errno.h in configure (Tim Newsham)
-
-Changes in 1.1.2 (19 March 98)
-- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
- See http://www.winimage.com/zLibDll/unzip.html
-- preinitialize the inflate tables for fixed codes, to make the code
- completely thread safe (Mark)
-- some simplifications and slight speed-up to the inflate code (Mark)
-- fix gzeof on non-compressed files (Allan Schrum)
-- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
-- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
-- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
-- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
-- do not wrap extern "C" around system includes (Tom Lane)
-- mention zlib binding for TCL in README (Andreas Kupries)
-- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
-- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
-- allow "configure --prefix $HOME" (Tim Mooney)
-- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
-- move Makefile.sas to amiga/Makefile.sas
-
-Changes in 1.1.1 (27 Feb 98)
-- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson)
-- remove block truncation heuristic which had very marginal effect for zlib
- (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
- compression ratio on some files. This also allows inlining _tr_tally for
- matches in deflate_slow.
-- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
-
-Changes in 1.1.0 (24 Feb 98)
-- do not return STREAM_END prematurely in inflate (John Bowler)
-- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
-- compile with -DFASTEST to get compression code optimized for speed only
-- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
-- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
- on Sun but significant on HP)
-
-- add a pointer to experimental unzip library in README (Gilles Vollant)
-- initialize variable gcc in configure (Chris Herborth)
-
-Changes in 1.0.9 (17 Feb 1998)
-- added gzputs and gzgets functions
-- do not clear eof flag in gzseek (Mark Diekhans)
-- fix gzseek for files in transparent mode (Mark Diekhans)
-- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
-- replace EXPORT with ZEXPORT to avoid conflict with other programs
-- added compress2 in zconf.h, zlib.def, zlib.dnt
-- new asm code from Gilles Vollant in contrib/asm386
-- simplify the inflate code (Mark):
- . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
- . ZALLOC the length list in inflate_trees_fixed() instead of using stack
- . ZALLOC the value area for huft_build() instead of using stack
- . Simplify Z_FINISH check in inflate()
-
-- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
-- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
-- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
- the declaration of FAR (Gilles VOllant)
-- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
-- read_buf buf parameter of type Bytef* instead of charf*
-- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
-- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
-- fix check for presence of directories in "make install" (Ian Willis)
-
-Changes in 1.0.8 (27 Jan 1998)
-- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
-- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
-- added compress2() to allow setting the compression level
-- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
-- use constant arrays for the static trees in trees.c instead of computing
- them at run time (thanks to Ken Raeburn for this suggestion). To create
- trees.h, compile with GEN_TREES_H and run "make test".
-- check return code of example in "make test" and display result
-- pass minigzip command line options to file_compress
-- simplifying code of inflateSync to avoid gcc 2.8 bug
-
-- support CC="gcc -Wall" in configure -s (QingLong)
-- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
-- fix test for shared library support to avoid compiler warnings
-- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
-- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
-- do not use fdopen for Metrowerks on Mac (Brad Pettit))
-- add checks for gzputc and gzputc in example.c
-- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
-- use const for the CRC table (Ken Raeburn)
-- fixed "make uninstall" for shared libraries
-- use Tracev instead of Trace in infblock.c
-- in example.c use correct compressed length for test_sync
-- suppress +vnocompatwarnings in configure for HPUX (not always supported)
-
-Changes in 1.0.7 (20 Jan 1998)
-- fix gzseek which was broken in write mode
-- return error for gzseek to negative absolute position
-- fix configure for Linux (Chun-Chung Chen)
-- increase stack space for MSC (Tim Wegner)
-- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
-- define EXPORTVA for gzprintf (Gilles Vollant)
-- added man page zlib.3 (Rick Rodgers)
-- for contrib/untgz, fix makedir() and improve Makefile
-
-- check gzseek in write mode in example.c
-- allocate extra buffer for seeks only if gzseek is actually called
-- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
-- add inflateSyncPoint in zconf.h
-- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
-
-Changes in 1.0.6 (19 Jan 1998)
-- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
- gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
-- Fix a deflate bug occuring only with compression level 0 (thanks to
- Andy Buckler for finding this one).
-- In minigzip, pass transparently also the first byte for .Z files.
-- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
-- check Z_FINISH in inflate (thanks to Marc Schluper)
-- Implement deflateCopy (thanks to Adam Costello)
-- make static libraries by default in configure, add --shared option.
-- move MSDOS or Windows specific files to directory msdos
-- suppress the notion of partial flush to simplify the interface
- (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
-- suppress history buffer provided by application to simplify the interface
- (this feature was not implemented anyway in 1.0.4)
-- next_in and avail_in must be initialized before calling inflateInit or
- inflateInit2
-- add EXPORT in all exported functions (for Windows DLL)
-- added Makefile.nt (thanks to Stephen Williams)
-- added the unsupported "contrib" directory:
- contrib/asm386/ by Gilles Vollant <info@winimage.com>
- 386 asm code replacing longest_match().
- contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
- A C++ I/O streams interface to the zlib gz* functions
- contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
- Another C++ I/O streams interface
- contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
- A very simple tar.gz file extractor using zlib
- contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
- How to use compress(), uncompress() and the gz* functions from VB.
-- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
- level) in minigzip (thanks to Tom Lane)
-
-- use const for rommable constants in deflate
-- added test for gzseek and gztell in example.c
-- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
-- add undocumented function zError to convert error code to string
- (for Tim Smithers)
-- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
-- Use default memcpy for Symantec MSDOS compiler.
-- Add EXPORT keyword for check_func (needed for Windows DLL)
-- add current directory to LD_LIBRARY_PATH for "make test"
-- create also a link for libz.so.1
-- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
-- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
-- added -soname for Linux in configure (Chun-Chung Chen,
-- assign numbers to the exported functions in zlib.def (for Windows DLL)
-- add advice in zlib.h for best usage of deflateSetDictionary
-- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
-- allow compilation with ANSI keywords only enabled for TurboC in large model
-- avoid "versionString"[0] (Borland bug)
-- add NEED_DUMMY_RETURN for Borland
-- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
-- allow compilation with CC
-- defined STDC for OS/2 (David Charlap)
-- limit external names to 8 chars for MVS (Thomas Lund)
-- in minigzip.c, use static buffers only for 16-bit systems
-- fix suffix check for "minigzip -d foo.gz"
-- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
-- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
-- added makelcc.bat for lcc-win32 (Tom St Denis)
-- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
-- Avoid expanded $Id: ChangeLog,v 1.1.1.5 2001/09/28 22:45:40 tholo Exp $. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
-- check for unistd.h in configure (for off_t)
-- remove useless check parameter in inflate_blocks_free
-- avoid useless assignment of s->check to itself in inflate_blocks_new
-- do not flush twice in gzclose (thanks to Ken Raeburn)
-- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
-- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
-- work around buggy fclose on pipes for HP/UX
-- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
-- fix configure if CC is already equal to gcc
-
-Changes in 1.0.5 (3 Jan 98)
-- Fix inflate to terminate gracefully when fed corrupted or invalid data
-- Use const for rommable constants in inflate
-- Eliminate memory leaks on error conditions in inflate
-- Removed some vestigial code in inflate
-- Update web address in README
-
-Changes in 1.0.4 (24 Jul 96)
-- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
- bit, so the decompressor could decompress all the correct data but went
- on to attempt decompressing extra garbage data. This affected minigzip too.
-- zlibVersion and gzerror return const char* (needed for DLL)
-- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
-- use z_error only for DEBUG (avoid problem with DLLs)
-
-Changes in 1.0.3 (2 Jul 96)
-- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
- small and medium models; this makes the library incompatible with previous
- versions for these models. (No effect in large model or on other systems.)
-- return OK instead of BUF_ERROR if previous deflate call returned with
- avail_out as zero but there is nothing to do
-- added memcmp for non STDC compilers
-- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
-- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
-- better check for 16-bit mode MSC (avoids problem with Symantec)
-
-Changes in 1.0.2 (23 May 96)
-- added Windows DLL support
-- added a function zlibVersion (for the DLL support)
-- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
-- Bytef is define's instead of typedef'd only for Borland C
-- avoid reading uninitialized memory in example.c
-- mention in README that the zlib format is now RFC1950
-- updated Makefile.dj2
-- added algorithm.doc
-
-Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
-- fix array overlay in deflate.c which sometimes caused bad compressed data
-- fix inflate bug with empty stored block
-- fix MSDOS medium model which was broken in 0.99
-- fix deflateParams() which could generated bad compressed data.
-- Bytef is define'd instead of typedef'ed (work around Borland bug)
-- added an INDEX file
-- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
- Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
-- speed up adler32 for modern machines without auto-increment
-- added -ansi for IRIX in configure
-- static_init_done in trees.c is an int
-- define unlink as delete for VMS
-- fix configure for QNX
-- add configure branch for SCO and HPUX
-- avoid many warnings (unused variables, dead assignments, etc...)
-- no fdopen for BeOS
-- fix the Watcom fix for 32 bit mode (define FAR as empty)
-- removed redefinition of Byte for MKWERKS
-- work around an MWKERKS bug (incorrect merge of all .h files)
-
-Changes in 0.99 (27 Jan 96)
-- allow preset dictionary shared between compressor and decompressor
-- allow compression level 0 (no compression)
-- add deflateParams in zlib.h: allow dynamic change of compression level
- and compression strategy.
-- test large buffers and deflateParams in example.c
-- add optional "configure" to build zlib as a shared library
-- suppress Makefile.qnx, use configure instead
-- fixed deflate for 64-bit systems (detected on Cray)
-- fixed inflate_blocks for 64-bit systems (detected on Alpha)
-- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
-- always return Z_BUF_ERROR when deflate() has nothing to do
-- deflateInit and inflateInit are now macros to allow version checking
-- prefix all global functions and types with z_ with -DZ_PREFIX
-- make falloc completely reentrant (inftrees.c)
-- fixed very unlikely race condition in ct_static_init
-- free in reverse order of allocation to help memory manager
-- use zlib-1.0/* instead of zlib/* inside the tar.gz
-- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
- -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
-- allow gzread on concatenated .gz files
-- deflateEnd now returns Z_DATA_ERROR if it was premature
-- deflate is finally (?) fully deterministic (no matches beyond end of input)
-- Document Z_SYNC_FLUSH
-- add uninstall in Makefile
-- Check for __cpluplus in zlib.h
-- Better test in ct_align for partial flush
-- avoid harmless warnings for Borland C++
-- initialize hash_head in deflate.c
-- avoid warning on fdopen (gzio.c) for HP cc -Aa
-- include stdlib.h for STDC compilers
-- include errno.h for Cray
-- ignore error if ranlib doesn't exist
-- call ranlib twice for NeXTSTEP
-- use exec_prefix instead of prefix for libz.a
-- renamed ct_* as _tr_* to avoid conflict with applications
-- clear z->msg in inflateInit2 before any error return
-- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
-- fixed typo in zconf.h (_GNUC__ => __GNUC__)
-- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
-- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
-- in fcalloc, normalize pointer if size > 65520 bytes
-- don't use special fcalloc for 32 bit Borland C++
-- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
-- use Z_BINARY instead of BINARY
-- document that gzclose after gzdopen will close the file
-- allow "a" as mode in gzopen.
-- fix error checking in gzread
-- allow skipping .gz extra-field on pipes
-- added reference to Perl interface in README
-- put the crc table in FAR data (I dislike more and more the medium model :)
-- added get_crc_table
-- added a dimension to all arrays (Borland C can't count).
-- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
-- guard against multiple inclusion of *.h (for precompiled header on Mac)
-- Watcom C pretends to be Microsoft C small model even in 32 bit mode.
-- don't use unsized arrays to avoid silly warnings by Visual C++:
- warning C4746: 'inflate_mask' : unsized array treated as '__far'
- (what's wrong with far data in far model?).
-- define enum out of inflate_blocks_state to allow compilation with C++
-
-Changes in 0.95 (16 Aug 95)
-- fix MSDOS small and medium model (now easier to adapt to any compiler)
-- inlined send_bits
-- fix the final (:-) bug for deflate with flush (output was correct but
- not completely flushed in rare occasions).
-- default window size is same for compression and decompression
- (it's now sufficient to set MAX_WBITS in zconf.h).
-- voidp -> voidpf and voidnp -> voidp (for consistency with other
- typedefs and because voidnp was not near in large model).
-
-Changes in 0.94 (13 Aug 95)
-- support MSDOS medium model
-- fix deflate with flush (could sometimes generate bad output)
-- fix deflateReset (zlib header was incorrectly suppressed)
-- added support for VMS
-- allow a compression level in gzopen()
-- gzflush now calls fflush
-- For deflate with flush, flush even if no more input is provided.
-- rename libgz.a as libz.a
-- avoid complex expression in infcodes.c triggering Turbo C bug
-- work around a problem with gcc on Alpha (in INSERT_STRING)
-- don't use inline functions (problem with some gcc versions)
-- allow renaming of Byte, uInt, etc... with #define.
-- avoid warning about (unused) pointer before start of array in deflate.c
-- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
-- avoid reserved word 'new' in trees.c
-
-Changes in 0.93 (25 June 95)
-- temporarily disable inline functions
-- make deflate deterministic
-- give enough lookahead for PARTIAL_FLUSH
-- Set binary mode for stdin/stdout in minigzip.c for OS/2
-- don't even use signed char in inflate (not portable enough)
-- fix inflate memory leak for segmented architectures
-
-Changes in 0.92 (3 May 95)
-- don't assume that char is signed (problem on SGI)
-- Clear bit buffer when starting a stored block
-- no memcpy on Pyramid
-- suppressed inftest.c
-- optimized fill_window, put longest_match inline for gcc
-- optimized inflate on stored blocks.
-- untabify all sources to simplify patches
-
-Changes in 0.91 (2 May 95)
-- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
-- Document the memory requirements in zconf.h
-- added "make install"
-- fix sync search logic in inflateSync
-- deflate(Z_FULL_FLUSH) now works even if output buffer too short
-- after inflateSync, don't scare people with just "lo world"
-- added support for DJGPP
-
-Changes in 0.9 (1 May 95)
-- don't assume that zalloc clears the allocated memory (the TurboC bug
- was Mark's bug after all :)
-- let again gzread copy uncompressed data unchanged (was working in 0.71)
-- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
-- added a test of inflateSync in example.c
-- moved MAX_WBITS to zconf.h because users might want to change that.
-- document explicitly that zalloc(64K) on MSDOS must return a normalized
- pointer (zero offset)
-- added Makefiles for Microsoft C, Turbo C, Borland C++
-- faster crc32()
-
-Changes in 0.8 (29 April 95)
-- added fast inflate (inffast.c)
-- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
- is incompatible with previous versions of zlib which returned Z_OK.
-- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
- (actually that was not a compiler bug, see 0.81 above)
-- gzread no longer reads one extra byte in certain cases
-- In gzio destroy(), don't reference a freed structure
-- avoid many warnings for MSDOS
-- avoid the ERROR symbol which is used by MS Windows
-
-Changes in 0.71 (14 April 95)
-- Fixed more MSDOS compilation problems :( There is still a bug with
- TurboC large model.
-
-Changes in 0.7 (14 April 95)
-- Added full inflate support.
-- Simplified the crc32() interface. The pre- and post-conditioning
- (one's complement) is now done inside crc32(). WARNING: this is
- incompatible with previous versions; see zlib.h for the new usage.
-
-Changes in 0.61 (12 April 95)
-- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
-
-Changes in 0.6 (11 April 95)
-- added minigzip.c
-- added gzdopen to reopen a file descriptor as gzFile
-- added transparent reading of non-gziped files in gzread.
-- fixed bug in gzread (don't read crc as data)
-- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
-- don't allocate big arrays in the stack (for MSDOS)
-- fix some MSDOS compilation problems
-
-Changes in 0.5:
-- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
- not yet Z_FULL_FLUSH.
-- support decompression but only in a single step (forced Z_FINISH)
-- added opaque object for zalloc and zfree.
-- added deflateReset and inflateReset
-- added a variable zlib_version for consistency checking.
-- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
- Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
-
-Changes in 0.4:
-- avoid "zip" everywhere, use zlib instead of ziplib.
-- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
- if compression method == 8.
-- added adler32 and crc32
-- renamed deflateOptions as deflateInit2, call one or the other but not both
-- added the method parameter for deflateInit2.
-- added inflateInit2
-- simplied considerably deflateInit and inflateInit by not supporting
- user-provided history buffer. This is supported only in deflateInit2
- and inflateInit2.
-
-Changes in 0.3:
-- prefix all macro names with Z_
-- use Z_FINISH instead of deflateEnd to finish compression.
-- added Z_HUFFMAN_ONLY
-- added gzerror()
+++ /dev/null
-
- Frequently Asked Questions about zlib
-
-
-If your question is not there, please check the zlib home page
-http://www.cdrom.com/pub/infozip/zlib/ which may have more recent information.
-
-
-1) I need a Windows DLL
-2) I need a Visual Basic interface to zlib
-3) compress() returns Z_BUF_ERROR
-4) deflate or inflate returns Z_BUF_ERROR
-5) Where is the zlib documentation (man pages, etc...)?
-6) Why don't you use GNU autoconf, libtool, etc...?
-7) There is a bug in zlib.
-8) I get "undefined reference to gzputc"
-
-
-
-1) I need a Windows DLL
-
- The zlib sources can be compiled without change to produce a DLL.
- If you want a precompiled DLL, see http://www.winimage.com/zLibDll
-
-
-2) I need a Visual Basic interface to zlib
-
- See http://www.tcfb.com/dowseware/cmp-z-it.zip
- http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
- and contrib/visual-basic.txt
-
-3) compress() returns Z_BUF_ERROR
-
- Make sure that before the call of compress, the length of the
- compressed buffer is equal to the total size of the compressed buffer
- and not zero. For Visual Basic, check that this parameter is passed
- by reference ("as any"), not by value ("as long").
-
-
-4) deflate or inflate returns Z_BUF_ERROR
-
- Make sure that before the call avail_in and avail_out are not zero.
-
-
-5) Where is the zlib documentation (man pages, etc...)?
-
- It's in zlib.h for the moment. Volunteers to transform this
- to man pages, please contact jloup@gzip.org. Examples of zlib usage
- are in the files example.c and minigzip.c.
-
-
-6) Why don't you use GNU autoconf, libtool, etc...?
-
- Because we would like to keep zlib as a very small and simple package.
- zlib is rather portable and doesn't need much configuration.
-
-
-7) There is a bug in zlib.
-
- Most of the time, such problems are due to an incorrect usage
- of zlib. Please try to reproduce the problem with a small
- program and send us the corresponding source at zlib@quest.jpl.nasa.gov
- Do not send multi-megabyte data files without prior agreement.
-
-
-8) I get "undefined reference to gzputc"
-
- If "make test" produces something like
- example.o(.text+0x174):
- check that you don't have old files libz.* in /usr/lib, /usr/local/lib
- or /usr/X11R6/lib. Remove old versions then do "make install".
-
+++ /dev/null
-ChangeLog history of changes
-INDEX this file
-FAQ Frequently Asked Questions about zlib
-Make_vms.com script for Vax/VMS
-Makefile makefile for Unix (generated by configure)
-Makefile.in makefile for Unix (template for configure)
-Makefile.riscos makefile for RISCOS
-README guess what
-algorithm.txt description of the (de)compression algorithm
-configure configure script for Unix
-descrip.mms makefile for Vax/VMS
-zlib.3 mini man page for zlib (volunteers to write full
- man pages from zlib.h welcome. write to jloup@gzip.org)
-
-amiga/Makefile.sas makefile for Amiga SAS/C
-amiga/Makefile.pup makefile for Amiga powerUP SAS/C PPC
-
-msdos/Makefile.w32 makefile for Microsoft Visual C++ 32-bit
-msdos/Makefile.b32 makefile for Borland C++ 32-bit
-msdos/Makefile.bor makefile for Borland C/C++ 16-bit
-msdos/Makefile.dj2 makefile for DJGPP 2.x
-msdos/Makefile.emx makefile for EMX 0.9c (32-bit DOS/OS2)
-msdos/Makefile.msc makefile for Microsoft C 16-bit
-msdos/Makefile.tc makefile for Turbo C
-msdos/Makefile.wat makefile for Watcom C
-msdos/zlib.def definition file for Windows DLL
-msdos/zlib.rc definition file for Windows DLL
-
-nt/Makefile.nt makefile for Windows NT
-nt/zlib.dnt definition file for Windows NT DLL
-nt/Makefile.emx makefile for EMX 0.9c/RSXNT 1.41 (Win32 Intel)
-nt/Makefile.gcc makefile for Windows NT using GCC (mingw32)
-
-
- zlib public header files (must be kept):
-zconf.h
-zlib.h
-
- private source files used to build the zlib library:
-adler32.c
-compress.c
-crc32.c
-deflate.c
-deflate.h
-gzio.c
-infblock.c
-infblock.h
-infcodes.c
-infcodes.h
-inffast.c
-inffast.h
-inflate.c
-inftrees.c
-inftrees.h
-infutil.c
-infutil.h
-maketree.c
-trees.c
-uncompr.c
-zutil.c
-zutil.h
-
- source files for sample programs:
-example.c
-minigzip.c
-
- unsupported contribution by third parties
-
-contrib/asm386/ by Gilles Vollant <info@winimage.com>
- 386 asm code replacing longest_match().
-
-contrib/minizip/ by Gilles Vollant <info@winimage.com>
- Mini zip and unzip based on zlib
- See http://www.winimage.com/zLibDll/unzip.html
-
-contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
- A C++ I/O streams interface to the zlib gz* functions
-
-contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
- Another C++ I/O streams interface
-
-contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
- A very simple tar.gz extractor using zlib
-
-contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
- How to use compress(), uncompress() and the gz* functions from VB.
+++ /dev/null
-$! make libz under VMS
-$! written by Martin P.J. Zinser <m.zinser@gsi.de>
-$!
-$! Look for the compiler used
-$!
-$ ccopt = ""
-$ if f$getsyi("HW_MODEL").ge.1024
-$ then
-$ ccopt = "/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ else
-$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
-$ then
-$ comp = "__vaxc__=1"
-$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
-$ else
-$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
-$ ccopt = "/decc/prefix=all"+ccopt
-$ comp = "__decc__=1"
-$ endif
-$ endif
-$!
-$! Build the thing plain or with mms
-$!
-$ write sys$output "Compiling Zlib sources ..."
-$ if f$search("SYS$SYSTEM:MMS.EXE").eqs.""
-$ then
-$ dele example.obj;*,minigzip.obj;*
-$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" -
- adler32.c zlib.h zconf.h
-$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" -
- compress.c zlib.h zconf.h
-$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" -
- crc32.c zlib.h zconf.h
-$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" -
- deflate.c deflate.h zutil.h zlib.h zconf.h
-$ CALL MAKE gzio.OBJ "CC ''CCOPT' gzio" -
- gzio.c zutil.h zlib.h zconf.h
-$ CALL MAKE infblock.OBJ "CC ''CCOPT' infblock" -
- infblock.c zutil.h zlib.h zconf.h infblock.h
-$ CALL MAKE infcodes.OBJ "CC ''CCOPT' infcodes" -
- infcodes.c zutil.h zlib.h zconf.h inftrees.h
-$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" -
- inffast.c zutil.h zlib.h zconf.h inffast.h
-$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" -
- inflate.c zutil.h zlib.h zconf.h infblock.h
-$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" -
- inftrees.c zutil.h zlib.h zconf.h inftrees.h
-$ CALL MAKE infutil.OBJ "CC ''CCOPT' infutil" -
- infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
-$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" -
- trees.c deflate.h zutil.h zlib.h zconf.h
-$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" -
- uncompr.c zlib.h zconf.h
-$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" -
- zutil.c zutil.h zlib.h zconf.h
-$ write sys$output "Building Zlib ..."
-$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
-$ write sys$output "Building example..."
-$ CALL MAKE example.OBJ "CC ''CCOPT' example" -
- example.c zlib.h zconf.h
-$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
-$ write sys$output "Building minigzip..."
-$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" -
- minigzip.c zlib.h zconf.h
-$ call make minigzip.exe -
- "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" -
- minigzip.obj libz.olb
-$ else
-$ mms/macro=('comp')
-$ endif
-$ write sys$output "Zlib build completed"
-$ exit
-$!
-$!
-$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
-$ V = 'F$Verify(0)
-$! P1 = What we are trying to make
-$! P2 = Command to make it
-$! P3 - P8 What it depends on
-$
-$ If F$Search(P1) .Eqs. "" Then Goto Makeit
-$ Time = F$CvTime(F$File(P1,"RDT"))
-$arg=3
-$Loop:
-$ Argument = P'arg
-$ If Argument .Eqs. "" Then Goto Exit
-$ El=0
-$Loop2:
-$ File = F$Element(El," ",Argument)
-$ If File .Eqs. " " Then Goto Endl
-$ AFile = ""
-$Loop3:
-$ OFile = AFile
-$ AFile = F$Search(File)
-$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
-$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
-$ Goto Loop3
-$NextEL:
-$ El = El + 1
-$ Goto Loop2
-$EndL:
-$ arg=arg+1
-$ If arg .Le. 8 Then Goto Loop
-$ Goto Exit
-$
-$Makeit:
-$ VV=F$VERIFY(0)
-$ write sys$output P2
-$ 'P2
-$ VV='F$Verify(VV)
-$Exit:
-$ If V Then Set Verify
-$ENDSUBROUTINE
+++ /dev/null
-# Makefile for zlib
-# Borland C++
-
-# This version of the zlib makefile was adapted by Chris Young for use
-# with Borland C 4.5x with the Dos Power Pack for a 32-bit protected mode
-# flat memory model. It was created for use with POV-Ray ray tracer and
-# you may choose to edit the CFLAGS to suit your needs but the
-# switches -WX and -DMSDOS are required.
-# -- Chris Young 76702.1655@compuserve.com
-
-# To use, do "make -fmakefile.b32"
-
-# See zconf.h for details about the memory requirements.
-
-# ------------- Borland C++ -------------
-MODEL=-WX
-CFLAGS= $(MODEL) -P-C -K -N- -k- -d -3 -r- -v- -f -DMSDOS
-CC=bcc32
-LD=bcc32
-LIB=tlib
-LDFLAGS= $(MODEL)
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2)
- del zlib.lib
- $(LIB) zlib +$(OBJP1)
- $(LIB) zlib +$(OBJP2)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# Borland C++ ************ UNTESTED ***********
-
-# To use, do "make -fmakefile.bor"
-# To compile in small model, set below: MODEL=-ms
-
-# WARNING: the small model is supported but only for small values of
-# MAX_WBITS and MAX_MEM_LEVEL. For example:
-# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to CFLAGS below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Turbo C++, Borland C++ -------------
-MODEL=-ml
-CFLAGS=-O2 -Z $(MODEL)
-CC=bcc
-LD=bcc
-LIB=tlib
-# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
-LDFLAGS=$(MODEL)
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2)
- del zlib.lib
- $(LIB) zlib +$(OBJP1)
- $(LIB) zlib +$(OBJP2)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib. Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96.
-# Copyright (C) 1995-1996 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.dj2; make test -fmakefile.dj2
-#
-# To install libz.a, zconf.h and zlib.h in the djgpp directories, type:
-#
-# make install -fmakefile.dj2
-#
-# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as
-# in the sample below if the pattern of the DJGPP distribution is to
-# be followed. Remember that, while <sp>'es around <=> are ignored in
-# makefiles, they are *not* in batch files or in djgpp.env.
-# - - - - -
-# [make]
-# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include
-# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib
-# BUTT=-m486
-# - - - - -
-# Alternately, these variables may be defined below, overriding the values
-# in djgpp.env, as
-INCLUDE_PATH=c:\usr\include
-
-CC=gcc
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is not found, replace with copy /Y .
-CP=cp -f
-# If install.exe is not found, replace with $(CP).
-INSTALL=install
-# The default value of RM is "rm -f." If "rm.exe" is not found, uncomment:
-# RM=del
-LDLIBS=-L. -lz
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=libz.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-libz.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
-
-.PHONY : uninstall clean
-
-install: $(INCL) $(LIBS)
- -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH)
- -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH)
- for %%f in ($(INCL)) do $(INSTALL) %%f $(INCLUDE_PATH)
- for %%p in ($(LIBS)) do $(INSTALL) %%p $(LIBRARY_PATH)
-
-uninstall:
- for %%f in ($(INCL)) do $(RM) $(INCLUDE_PATH)\%%f
- for %%p in ($(LIBS)) do $(RM) $(LIBRARY_PATH)\%%p
-
-clean:
- for %%p in (*.d *.o *.exe libz.a libz.so* foo.gz) do $(RM) %%p
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
+++ /dev/null
-# Makefile for zlib
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-srcdir = @srcdir@
-top_srcdir = @top_srcdir@
-VPATH = @srcdir@
-
-# To compile and test, type:
-# ./configure; make test
-# The call of configure is optional if you don't have special requirements
-# If you wish to build zlib as a shared library, use: ./configure -s
-
-# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
-# make install
-# To install in $HOME instead of /usr/local, use:
-# make install prefix=$HOME
-
-CC=@CC@
-
-CFLAGS=@CFLAGS@
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DDEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-# -Wstrict-prototypes -Wmissing-prototypes
-
-LDFLAGS=@LDFLAGS@
-LDSHARED=$(CC)
-CPP=$(CC) -E
-
-VER=1.1.3
-LIBS=libz.a
-SHAREDLIB=libz.so
-
-# For CVS, separate AR and ARFLAGS.
-AR=ar
-RANLIB=@RANLIB@
-AMTAR=@AMTAR@
-SHELL=/bin/sh
-
-prefix=@prefix@
-exec_prefix = $(prefix)
-libdir = ${exec_prefix}/lib
-includedir = ${prefix}/include
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-OBJA =
-# to use the asm code: make OBJA=match.o
-
-TEST_OBJS = example.o minigzip.o
-
-DISTFILES = README FAQ INDEX ChangeLog configure Makefile.* *.[ch] *.mms \
- algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
- nt/Make*[a-z0-9] nt/zlib.dnt amiga/Make*.??? os2/M*.os2 os2/zlib.def \
- contrib/RE*.contrib contrib/*.txt contrib/asm386/*.asm contrib/asm386/*.c \
- contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/asm[56]86/*.?86 \
- contrib/asm[56]86/*.S contrib/iostream/*.cpp \
- contrib/iostream/*.h contrib/iostream2/*.h contrib/iostream2/*.cpp \
- contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 \
- contrib/minizip/[CM]*[pe] contrib/minizip/*.[ch] contrib/minizip/*.[td]?? \
- contrib/delphi*/*.??? \
- Make_vms.com .cvsignore
-
-# for CVS's distdir & Makefile targets
-subdir = zlib
-
-# For CVS, just build libz.a
-all: libz.a
-
-# To reenable make test
-all-original: all minigzip example
-
-check test: all-original
- @LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
- echo hello world | ./minigzip | ./minigzip -d || \
- echo ' *** minigzip test FAILED ***' ; \
- if ./example; then \
- echo ' *** zlib test OK ***'; \
- else \
- echo ' *** zlib test FAILED ***'; \
- fi
-
-# For CVS, use an explict rc after $(AR).
-libz.a: $(OBJS) $(OBJA)
- $(AR) rc $@ $(OBJS) $(OBJA)
- -@ ($(RANLIB) $@ || true) >/dev/null 2>&1
-
-match.o: match.S
- $(CPP) match.S > _match.s
- $(CC) -c _match.s
- mv _match.o match.o
- rm -f _match.s
-
-$(SHAREDLIB).$(VER): $(OBJS)
- $(LDSHARED) -o $@ $(OBJS)
- rm -f $(SHAREDLIB) $(SHAREDLIB).1
- ln -s $@ $(SHAREDLIB)
- ln -s $@ $(SHAREDLIB).1
-
-example: example.o $(LIBS)
- $(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS) $(LIBS)
-
-minigzip: minigzip.o $(LIBS)
- $(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS) $(LIBS)
-
-# For CVS, make install dependant on all and remove the uninstall target.
-install: all
-uninstall:
-.PHONY: install uninstall
-
-# Remove targets for CVS
-info:
-installcheck:
-.PHONY: info installcheck
-
-#install: $(LIBS)
-# -@if [ ! -d $(includedir) ]; then mkdir $(includedir); fi
-# -@if [ ! -d $(libdir) ]; then mkdir $(libdir); fi
-# cp zlib.h zconf.h $(includedir)
-# chmod 644 $(includedir)/zlib.h $(includedir)/zconf.h
-# cp $(LIBS) $(libdir)
-# cd $(libdir); chmod 755 $(LIBS)
-# -@(cd $(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
-# cd $(libdir); if test -f $(SHAREDLIB).$(VER); then \
-# rm -f $(SHAREDLIB) $(SHAREDLIB).1; \
-# ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB); \
-# ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB).1; \
-# (ldconfig || true) >/dev/null 2>&1; \
-# fi
-# The ranlib in install is needed on NeXTSTEP which checks file times
-# ldconfig is for Linux
-
-#uninstall:
-# cd $(includedir); \
-# v=$(VER); \
-# if test -f zlib.h; then \
-# v=`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`; \
-# rm -f zlib.h zconf.h; \
-# fi; \
-# cd $(libdir); rm -f libz.a; \
-# if test -f $(SHAREDLIB).$$v; then \
-# rm -f $(SHAREDLIB).$$v $(SHAREDLIB) $(SHAREDLIB).1; \
-# fi
-
-installdirs:
-.PHONY: installdirs
-
-# distdir added for CVS.
-top_builddir = ..
-PACKAGE = @PACKAGE@
-VERSION = @VERSION@
-distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir)
-distdir:
- @d=$(srcdir); \
- for file in `cd $$d; echo $(DISTFILES)`; do \
- if test -d $(distdir)/`dirname $$file`; then \
- :; \
- else \
- mkdir $(distdir)/`dirname $$file`; \
- fi; \
- if test -d $$d/$$file; then \
- cp -pR $$d/$$file $(distdir) \
- || exit 1; \
- else \
- test -f $(distdir)/$$file \
- || cp -p $$d/$$file $(distdir)/$$file \
- || exit 1; \
- fi; \
- done
-.PHONY: distdir
-
-# mostlyclean added for CVS.
-mostlyclean clean:
- rm -f *.o *~ example minigzip libz.a libz.so* foo.gz so_locations \
- _match.s maketree
-.PHONY: mostlyclean clean
-
-# distclean and realclean and maintainer-clean added for CVS.
-distclean realclean maintainer-clean: clean
- rm -f Makefile
-.PHONY: distclean realclean maintainer-clean
-
-zip:
- mv Makefile Makefile~; cp -p Makefile.in Makefile
- rm -f test.c ztest*.c contrib/minizip/test.zip
- v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
- zip -ul9 zlib$$v $(DISTFILES)
- mv Makefile~ Makefile
-
-dist:
- mv Makefile Makefile~; cp -p Makefile.in Makefile
- rm -f test.c ztest*.c contrib/minizip/test.zip
- d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
- rm -f $$d.tar.gz; \
- if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
- files=""; \
- for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
- cd ..; \
- GZIP=-9 $(AMTAR) chofz $$d/$$d.tar.gz $$files; \
- if test ! -d $$d; then rm -f $$d; fi
- mv Makefile~ Makefile
-
-.PHONY: tags
-tags: TAGS
-
-TAGS:
- tags=; \
- here=`pwd`; \
- list=`(echo *.[ch] && cd $(srcdir) && echo *.[ch]) |sort |uniq`; \
- unique=`for i in $$list; do \
- if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
- done | \
- $(AWK) ' { files[$$0] = 1; } \
- END { for (i in files) print i; }'`; \
- test -z "$(ETAGS_ARGS)$$unique$(LISP)$$tags" \
- || etags $(ETAGS_ARGS) $$tags $$unique $(LISP)
-
-# Makefile target added for CVS.
-Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
- cd $(top_builddir) \
- && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
-
-depend:
- makedepend -- $(CFLAGS) -- *.[ch]
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h
-infcodes.o: zutil.h zlib.h zconf.h
-infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h
-inffast.o: infblock.h infcodes.h infutil.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
+++ /dev/null
-# Makefile for zlib
-# Microsoft C 5.1 or later
-
-# To use, do "make makefile.msc"
-# To compile in small model, set below: MODEL=-AS
-
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to CFLAGS below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Microsoft C 5.1 and later -------------
-MODEL=-AL
-CFLAGS=-Oait -Gs -nologo -W3 $(MODEL)
-#-Ox generates bad code with MSC 5.1
-CC=cl
-LD=link
-LDFLAGS=/e/st:0x1000/noe
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: zlib.lib example.exe minigzip.exe
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2)
- if exist zlib.lib del zlib.lib
- lib zlib $(OBJ1);
- lib zlib $(OBJ2);
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj,,,zlib.lib;
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj,,,zlib.lib;
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Project: zlib_1_03
-# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430
-# test works out-of-the-box, installs `somewhere' on demand
-
-# Toolflags:
-CCflags = -c -depend !Depend -IC: -g -throwback -DRISCOS -fah
-C++flags = -c -depend !Depend -IC: -throwback
-Linkflags = -aif -c++ -o $@
-ObjAsmflags = -throwback -NoCache -depend !Depend
-CMHGflags =
-LibFileflags = -c -l -o $@
-Squeezeflags = -o $@
-
-# change the line below to where _you_ want the library installed.
-libdest = lib:zlib
-
-# Final targets:
-@.lib: @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \
- @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \
- @.o.uncompr @.o.zutil
- LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \
- @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \
- @.o.trees @.o.uncompr @.o.zutil
-test: @.minigzip @.example @.lib
- @copy @.lib @.libc A~C~DF~L~N~P~Q~RS~TV
- @echo running tests: hang on.
- @/@.minigzip -f -9 libc
- @/@.minigzip -d libc-gz
- @/@.minigzip -f -1 libc
- @/@.minigzip -d libc-gz
- @/@.minigzip -h -9 libc
- @/@.minigzip -d libc-gz
- @/@.minigzip -h -1 libc
- @/@.minigzip -d libc-gz
- @/@.minigzip -9 libc
- @/@.minigzip -d libc-gz
- @/@.minigzip -1 libc
- @/@.minigzip -d libc-gz
- @diff @.lib @.libc
- @echo that should have reported '@.lib and @.libc identical' if you have diff.
- @/@.example @.fred @.fred
- @echo that will have given lots of hello!'s.
-
-@.minigzip: @.o.minigzip @.lib C:o.Stubs
- Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs
-@.example: @.o.example @.lib C:o.Stubs
- Link $(Linkflags) @.o.example @.lib C:o.Stubs
-
-install: @.lib
- cdir $(libdest)
- cdir $(libdest).h
- @copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV
- @copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV
- @copy @.lib $(libdest).lib A~C~DF~L~N~P~Q~RS~TV
- @echo okay, installed zlib in $(libdest)
-
-clean:; remove @.minigzip
- remove @.example
- remove @.libc
- -wipe @.o.* F~r~cV
- remove @.fred
-
-# User-editable dependencies:
-.c.o:
- cc $(ccflags) -o $@ $<
-
-# Static dependencies:
-
-# Dynamic dependencies:
-o.example: c.example
-o.example: h.zlib
-o.example: h.zconf
-o.minigzip: c.minigzip
-o.minigzip: h.zlib
-o.minigzip: h.zconf
-o.adler32: c.adler32
-o.adler32: h.zlib
-o.adler32: h.zconf
-o.compress: c.compress
-o.compress: h.zlib
-o.compress: h.zconf
-o.crc32: c.crc32
-o.crc32: h.zlib
-o.crc32: h.zconf
-o.deflate: c.deflate
-o.deflate: h.deflate
-o.deflate: h.zutil
-o.deflate: h.zlib
-o.deflate: h.zconf
-o.gzio: c.gzio
-o.gzio: h.zutil
-o.gzio: h.zlib
-o.gzio: h.zconf
-o.infblock: c.infblock
-o.infblock: h.zutil
-o.infblock: h.zlib
-o.infblock: h.zconf
-o.infblock: h.infblock
-o.infblock: h.inftrees
-o.infblock: h.infcodes
-o.infblock: h.infutil
-o.infcodes: c.infcodes
-o.infcodes: h.zutil
-o.infcodes: h.zlib
-o.infcodes: h.zconf
-o.infcodes: h.inftrees
-o.infcodes: h.infblock
-o.infcodes: h.infcodes
-o.infcodes: h.infutil
-o.infcodes: h.inffast
-o.inffast: c.inffast
-o.inffast: h.zutil
-o.inffast: h.zlib
-o.inffast: h.zconf
-o.inffast: h.inftrees
-o.inffast: h.infblock
-o.inffast: h.infcodes
-o.inffast: h.infutil
-o.inffast: h.inffast
-o.inflate: c.inflate
-o.inflate: h.zutil
-o.inflate: h.zlib
-o.inflate: h.zconf
-o.inflate: h.infblock
-o.inftrees: c.inftrees
-o.inftrees: h.zutil
-o.inftrees: h.zlib
-o.inftrees: h.zconf
-o.inftrees: h.inftrees
-o.inftrees: h.inffixed
-o.infutil: c.infutil
-o.infutil: h.zutil
-o.infutil: h.zlib
-o.infutil: h.zconf
-o.infutil: h.infblock
-o.infutil: h.inftrees
-o.infutil: h.infcodes
-o.infutil: h.infutil
-o.trees: c.trees
-o.trees: h.deflate
-o.trees: h.zutil
-o.trees: h.zlib
-o.trees: h.zconf
-o.trees: h.trees
-o.uncompr: c.uncompr
-o.uncompr: h.zlib
-o.uncompr: h.zconf
-o.zutil: c.zutil
-o.zutil: h.zutil
-o.zutil: h.zlib
-o.zutil: h.zconf
+++ /dev/null
-# SMakefile for zlib
-# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly
-# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi>
-# Amiga, SAS/C 6.56 & Smake
-
-CC=sc
-CFLAGS=OPT
-#CFLAGS=OPT CPU=68030
-#CFLAGS=DEBUG=LINE
-LDFLAGS=LIB z.lib
-
-SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \
- NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: SCOPTIONS example minigzip
-
-test: all
- `cd`/example
- echo hello world | minigzip | minigzip -d
-
-install: z.lib
- copy zlib.h zconf.h INCLUDE: clone
- copy z.lib LIB: clone
-
-z.lib: $(OBJS)
- oml z.lib r $(OBJS)
-
-example: example.o z.lib
- $(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS)
-
-minigzip: minigzip.o z.lib
- $(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS)
-
-clean:
- -delete force quiet *.o example minigzip z.lib foo.gz *.lnk SCOPTIONS
-
-SCOPTIONS: Smakefile
- copy to $@ <from <
-$(SCOPTIONS)
-<
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zutil.h zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: zutil.h zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
+++ /dev/null
-# Makefile for zlib
-# TurboC 2.0
-
-# To use, do "make -fmakefile.tc"
-# To compile in small model, set below: MODEL=-ms
-
-# WARNING: the small model is supported but only for small values of
-# MAX_WBITS and MAX_MEM_LEVEL. For example:
-# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to CFLAGS below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Turbo C 2.0 -------------
-MODEL=-ml
-# CFLAGS=-O2 -G -Z $(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
-CFLAGS=-O2 -G -Z $(MODEL)
-CC=tcc -I\tc\include
-LD=tcc -L\tc\lib
-LIB=tlib
-LDFLAGS=$(MODEL) -f-
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2)
- del zlib.lib
- $(LIB) zlib +$(OBJP1)
- $(LIB) zlib +$(OBJP2)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) -eexample.exe example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) -eminigzip.exe minigzip.obj zlib.lib
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# Watcom 10a
-
-# This version of the zlib makefile was adapted by Chris Young for use
-# with Watcom 10a 32-bit protected mode flat memory model. It was created
-# for use with POV-Ray ray tracer and you may choose to edit the CFLAGS to
-# suit your needs but the -DMSDOS is required.
-# -- Chris Young 76702.1655@compuserve.com
-
-# To use, do "wmake -f makefile.wat"
-
-# See zconf.h for details about the memory requirements.
-
-# ------------- Watcom 10a -------------
-MODEL=-mf
-CFLAGS= $(MODEL) -fpi87 -fp5 -zp4 -5r -w5 -oneatx -DMSDOS
-CC=wcc386
-LD=wcl386
-LIB=wlib -b -c
-LDFLAGS=
-O=.obj
-
-# variables
-OBJ1=adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O)
-OBJ2=trees$(O) zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O)
-OBJ3=infutil$(O) inffast$(O)
-OBJP1=adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)
-OBJP2=trees$(O)+zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)
-OBJP3=infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h &
- infcodes.h infutil.h
- $(CC) $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h &
- infcodes.h inffast.h
- $(CC) $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2) $(OBJ3)
- del zlib.lib
- $(LIB) zlib.lib +$(OBJP1)
- $(LIB) zlib.lib +$(OBJP2)
- $(LIB) zlib.lib +$(OBJP3)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: minigzip.exe example.exe
- example
- echo hello world | minigzip | minigzip -d >test
- type test
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-zlib 1.1.3 is a general purpose data compression library. All the code
-is thread safe. The data format used by the zlib library
-is described by RFCs (Request for Comments) 1950 to 1952 in the files
-ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
-format) and rfc1952.txt (gzip format). These documents are also available in
-other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
-
-All functions of the compression library are documented in the file zlib.h
-(volunteer to write man pages welcome, contact jloup@gzip.org). A usage
-example of the library is given in the file example.c which also tests that
-the library is working correctly. Another example is given in the file
-minigzip.c. The compression library itself is composed of all source files
-except example.c and minigzip.c.
-
-To compile all files and run the test program, follow the instructions
-given at the top of Makefile. In short "make test; make install"
-should work for most machines. For Unix: "configure; make test; make install"
-For MSDOS, use one of the special makefiles such as Makefile.msc.
-For VMS, use Make_vms.com or descrip.mms.
-
-Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov>, or to
-Gilles Vollant <info@winimage.com> for the Windows DLL version.
-The zlib home page is http://www.cdrom.com/pub/infozip/zlib/
-The official zlib ftp site is ftp://ftp.cdrom.com/pub/infozip/zlib/
-Before reporting a problem, please check those sites to verify that
-you have the latest version of zlib; otherwise get the latest version and
-check whether the problem still exists or not.
-
-Mark Nelson <markn@tiny.com> wrote an article about zlib for the Jan. 1997
-issue of Dr. Dobb's Journal; a copy of the article is available in
-http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
-
-The changes made in version 1.1.3 are documented in the file ChangeLog.
-The main changes since 1.1.2 are:
-
-- fix "an inflate input buffer bug that shows up on rare but persistent
- occasions" (Mark)
-- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
-- fix gzseek(..., SEEK_SET) in write mode
-- fix crc check after a gzeek (Frank Faubert)
-- fix miniunzip when the last entry in a zip file is itself a zip file
- (J Lillge)
-- add contrib/asm586 and contrib/asm686 (Brian Raiter)
- See http://www.muppetlabs.com/~breadbox/software/assembly.html
-- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
-- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
-- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
-- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
-- added a FAQ file
-
-plus many changes for portability.
-
-Unsupported third party contributions are provided in directory "contrib".
-
-A Java implementation of zlib is available in the Java Development Kit 1.1
-http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
-See the zlib home page http://www.cdrom.com/pub/infozip/zlib/ for details.
-
-A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>
-is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
-ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
-
-A Python interface to zlib written by A.M. Kuchling <amk@magnet.com>
-is available in Python 1.5 and later versions, see
-http://www.python.org/doc/lib/module-zlib.html
-
-A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com>
-is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html
-
-An experimental package to read and write files in .zip format,
-written on top of zlib by Gilles Vollant <info@winimage.com>, is
-available at http://www.winimage.com/zLibDll/unzip.html
-and also in the contrib/minizip directory of zlib.
-
-
-Notes for some targets:
-
-- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
- and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
- The zlib DLL support was initially done by Alessandro Iacopetti and is
- now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL
- home page at http://www.winimage.com/zLibDll
-
- From Visual Basic, you can call the DLL functions which do not take
- a structure as argument: compress, uncompress and all gz* functions.
- See contrib/visual-basic.txt for more information, or get
- http://www.tcfb.com/dowseware/cmp-z-it.zip
-
-- For 64-bit Irix, deflate.c must be compiled without any optimization.
- With -O, one libpng test fails. The test works in 32 bit mode (with
- the -n32 compiler flag). The compiler bug has been reported to SGI.
-
-- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1
- it works when compiled with cc.
-
-- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1
- is necessary to get gzprintf working correctly. This is done by configure.
-
-- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works
- with other compilers. Use "make test" to check your compiler.
-
-- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers.
-
-- For Turbo C the small model is supported only with reduced performance to
- avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
-
-- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html
- Per Harald Myrvang <perm@stud.cs.uit.no>
-
-
-Acknowledgments:
-
- The deflate format used by zlib was defined by Phil Katz. The deflate
- and zlib specifications were written by L. Peter Deutsch. Thanks to all the
- people who reported problems and suggested various improvements in zlib;
- they are too numerous to cite here.
-
-Copyright notice:
-
- (C) 1995-1998 Jean-loup Gailly and Mark Adler
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Jean-loup Gailly Mark Adler
- jloup@gzip.org madler@alumni.caltech.edu
-
-If you use the zlib library in a product, we would appreciate *not*
-receiving lengthy legal documents to sign. The sources are provided
-for free but without warranty of any kind. The library has been
-entirely written by Jean-loup Gailly and Mark Adler; it does not
-include third-party code.
-
-If you redistribute modified sources, we would appreciate that you include
-in the file ChangeLog history information documenting your changes.
+++ /dev/null
-/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: adler32.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "zlib.h"
-
-#define BASE 65521L /* largest prime smaller than 65536 */
-#define NMAX 5552
-/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
-
-#define DO1(buf,i) {s1 += buf[i]; s2 += s1;}
-#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);
-#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);
-#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
-#define DO16(buf) DO8(buf,0); DO8(buf,8);
-
-/* ========================================================================= */
-uLong ZEXPORT adler32(adler, buf, len)
- uLong adler;
- const Bytef *buf;
- uInt len;
-{
- unsigned long s1 = adler & 0xffff;
- unsigned long s2 = (adler >> 16) & 0xffff;
- int k;
-
- if (buf == Z_NULL) return 1L;
-
- while (len > 0) {
- k = len < NMAX ? len : NMAX;
- len -= k;
- while (k >= 16) {
- DO16(buf);
- buf += 16;
- k -= 16;
- }
- if (k != 0) do {
- s1 += *buf++;
- s2 += s1;
- } while (--k);
- s1 %= BASE;
- s2 %= BASE;
- }
- return (s2 << 16) | s1;
-}
+++ /dev/null
-1. Compression algorithm (deflate)
-
-The deflation algorithm used by gzip (also zip and zlib) is a variation of
-LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in
-the input data. The second occurrence of a string is replaced by a
-pointer to the previous string, in the form of a pair (distance,
-length). Distances are limited to 32K bytes, and lengths are limited
-to 258 bytes. When a string does not occur anywhere in the previous
-32K bytes, it is emitted as a sequence of literal bytes. (In this
-description, `string' must be taken as an arbitrary sequence of bytes,
-and is not restricted to printable characters.)
-
-Literals or match lengths are compressed with one Huffman tree, and
-match distances are compressed with another tree. The trees are stored
-in a compact form at the start of each block. The blocks can have any
-size (except that the compressed data for one block must fit in
-available memory). A block is terminated when deflate() determines that
-it would be useful to start another block with fresh trees. (This is
-somewhat similar to the behavior of LZW-based _compress_.)
-
-Duplicated strings are found using a hash table. All input strings of
-length 3 are inserted in the hash table. A hash index is computed for
-the next 3 bytes. If the hash chain for this index is not empty, all
-strings in the chain are compared with the current input string, and
-the longest match is selected.
-
-The hash chains are searched starting with the most recent strings, to
-favor small distances and thus take advantage of the Huffman encoding.
-The hash chains are singly linked. There are no deletions from the
-hash chains, the algorithm simply discards matches that are too old.
-
-To avoid a worst-case situation, very long hash chains are arbitrarily
-truncated at a certain length, determined by a runtime option (level
-parameter of deflateInit). So deflate() does not always find the longest
-possible match but generally finds a match which is long enough.
-
-deflate() also defers the selection of matches with a lazy evaluation
-mechanism. After a match of length N has been found, deflate() searches for
-a longer match at the next input byte. If a longer match is found, the
-previous match is truncated to a length of one (thus producing a single
-literal byte) and the process of lazy evaluation begins again. Otherwise,
-the original match is kept, and the next match search is attempted only N
-steps later.
-
-The lazy match evaluation is also subject to a runtime parameter. If
-the current match is long enough, deflate() reduces the search for a longer
-match, thus speeding up the whole process. If compression ratio is more
-important than speed, deflate() attempts a complete second search even if
-the first match is already long enough.
-
-The lazy match evaluation is not performed for the fastest compression
-modes (level parameter 1 to 3). For these fast modes, new strings
-are inserted in the hash table only when no match was found, or
-when the match is not too long. This degrades the compression ratio
-but saves time since there are both fewer insertions and fewer searches.
-
-
-2. Decompression algorithm (inflate)
-
-2.1 Introduction
-
-The real question is, given a Huffman tree, how to decode fast. The most
-important realization is that shorter codes are much more common than
-longer codes, so pay attention to decoding the short codes fast, and let
-the long codes take longer to decode.
-
-inflate() sets up a first level table that covers some number of bits of
-input less than the length of longest code. It gets that many bits from the
-stream, and looks it up in the table. The table will tell if the next
-code is that many bits or less and how many, and if it is, it will tell
-the value, else it will point to the next level table for which inflate()
-grabs more bits and tries to decode a longer code.
-
-How many bits to make the first lookup is a tradeoff between the time it
-takes to decode and the time it takes to build the table. If building the
-table took no time (and if you had infinite memory), then there would only
-be a first level table to cover all the way to the longest code. However,
-building the table ends up taking a lot longer for more bits since short
-codes are replicated many times in such a table. What inflate() does is
-simply to make the number of bits in the first table a variable, and set it
-for the maximum speed.
-
-inflate() sends new trees relatively often, so it is possibly set for a
-smaller first level table than an application that has only one tree for
-all the data. For inflate, which has 286 possible codes for the
-literal/length tree, the size of the first table is nine bits. Also the
-distance trees have 30 possible values, and the size of the first table is
-six bits. Note that for each of those cases, the table ended up one bit
-longer than the ``average'' code length, i.e. the code length of an
-approximately flat code which would be a little more than eight bits for
-286 symbols and a little less than five bits for 30 symbols. It would be
-interesting to see if optimizing the first level table for other
-applications gave values within a bit or two of the flat code size.
-
-
-2.2 More details on the inflate table lookup
-
-Ok, you want to know what this cleverly obfuscated inflate tree actually
-looks like. You are correct that it's not a Huffman tree. It is simply a
-lookup table for the first, let's say, nine bits of a Huffman symbol. The
-symbol could be as short as one bit or as long as 15 bits. If a particular
-symbol is shorter than nine bits, then that symbol's translation is duplicated
-in all those entries that start with that symbol's bits. For example, if the
-symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a
-symbol is nine bits long, it appears in the table once.
-
-If the symbol is longer than nine bits, then that entry in the table points
-to another similar table for the remaining bits. Again, there are duplicated
-entries as needed. The idea is that most of the time the symbol will be short
-and there will only be one table look up. (That's whole idea behind data
-compression in the first place.) For the less frequent long symbols, there
-will be two lookups. If you had a compression method with really long
-symbols, you could have as many levels of lookups as is efficient. For
-inflate, two is enough.
-
-So a table entry either points to another table (in which case nine bits in
-the above example are gobbled), or it contains the translation for the symbol
-and the number of bits to gobble. Then you start again with the next
-ungobbled bit.
-
-You may wonder: why not just have one lookup table for how ever many bits the
-longest symbol is? The reason is that if you do that, you end up spending
-more time filling in duplicate symbol entries than you do actually decoding.
-At least for deflate's output that generates new trees every several 10's of
-kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code
-would take too long if you're only decoding several thousand symbols. At the
-other extreme, you could make a new table for every bit in the code. In fact,
-that's essentially a Huffman tree. But then you spend two much time
-traversing the tree while decoding, even for short symbols.
-
-So the number of bits for the first lookup table is a trade of the time to
-fill out the table vs. the time spent looking at the second level and above of
-the table.
-
-Here is an example, scaled down:
-
-The code being decoded, with 10 symbols, from 1 to 6 bits long:
-
-A: 0
-B: 10
-C: 1100
-D: 11010
-E: 11011
-F: 11100
-G: 11101
-H: 11110
-I: 111110
-J: 111111
-
-Let's make the first table three bits long (eight entries):
-
-000: A,1
-001: A,1
-010: A,1
-011: A,1
-100: B,2
-101: B,2
-110: -> table X (gobble 3 bits)
-111: -> table Y (gobble 3 bits)
-
-Each entry is what the bits decode to and how many bits that is, i.e. how
-many bits to gobble. Or the entry points to another table, with the number of
-bits to gobble implicit in the size of the table.
-
-Table X is two bits long since the longest code starting with 110 is five bits
-long:
-
-00: C,1
-01: C,1
-10: D,2
-11: E,2
-
-Table Y is three bits long since the longest code starting with 111 is six
-bits long:
-
-000: F,2
-001: F,2
-010: G,2
-011: G,2
-100: H,2
-101: H,2
-110: I,3
-111: J,3
-
-So what we have here are three tables with a total of 20 entries that had to
-be constructed. That's compared to 64 entries for a single table. Or
-compared to 16 entries for a Huffman tree (six two entry tables and one four
-entry table). Assuming that the code ideally represents the probability of
-the symbols, it takes on the average 1.25 lookups per symbol. That's compared
-to one lookup for the single table, or 1.66 lookups per symbol for the
-Huffman tree.
-
-There, I think that gives you a picture of what's going on. For inflate, the
-meaning of a particular symbol is often more than just a letter. It can be a
-byte (a "literal"), or it can be either a length or a distance which
-indicates a base value and a number of bits to fetch after the code that is
-added to the base value. Or it might be the special end-of-block code. The
-data structures created in inftrees.c try to encode all that information
-compactly in the tables.
-
-
-Jean-loup Gailly Mark Adler
-jloup@gzip.org madler@alumni.caltech.edu
-
-
-References:
-
-[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data
-Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3,
-pp. 337-343.
-
-``DEFLATE Compressed Data Format Specification'' available in
-ftp://ds.internic.net/rfc/rfc1951.txt
+++ /dev/null
-# Amiga powerUP (TM) Makefile
-# makefile for libpng and SAS C V6.58/7.00 PPC compiler
-# Copyright (C) 1998 by Andreas R. Kleinert
-
-CC = scppc
-CFLAGS = NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \
- OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8
-LIBNAME = libzip.a
-AR = ppc-amigaos-ar
-AR_FLAGS = cr
-RANLIB = ppc-amigaos-ranlib
-LDFLAGS = -r -o
-LDLIBS = LIB:scppc.a
-LN = ppc-amigaos-ld
-RM = delete quiet
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example minigzip
-
-test: all
- example
- echo hello world | minigzip | minigzip -d
-
-$(LIBNAME): $(OBJS)
- $(AR) $(AR_FLAGS) $@ $(OBJS)
- $(RANLIB) $@
-
-example: example.o $(LIBNAME)
- $(LN) $(LDFLAGS) example LIB:c_ppc.o example.o $(LIBNAME) $(LDLIBS) LIB:end.o
-
-minigzip: minigzip.o $(LIBNAME)
- $(LN) $(LDFLAGS) minigzip LIB:c_ppc.o minigzip.o $(LIBNAME) $(LDLIBS) LIB:end.o
-
-clean:
- $(RM) *.o example minigzip $(LIBNAME) foo.gz
-
-zip:
- zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \
- descrip.mms *.[ch]
-
-tgz:
- cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \
- zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch]
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zutil.h zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: zutil.h zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
+++ /dev/null
-# SMakefile for zlib
-# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly
-# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi>
-# Amiga, SAS/C 6.56 & Smake
-
-CC=sc
-CFLAGS=OPT
-#CFLAGS=OPT CPU=68030
-#CFLAGS=DEBUG=LINE
-LDFLAGS=LIB z.lib
-
-SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \
- NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: SCOPTIONS example minigzip
-
-test: all
- `cd`/example
- echo hello world | minigzip | minigzip -d
-
-install: z.lib
- copy zlib.h zconf.h INCLUDE: clone
- copy z.lib LIB: clone
-
-z.lib: $(OBJS)
- oml z.lib r $(OBJS)
-
-example: example.o z.lib
- $(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS)
-
-minigzip: minigzip.o z.lib
- $(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS)
-
-clean:
- -delete force quiet *.o example minigzip z.lib foo.gz *.lnk SCOPTIONS
-
-SCOPTIONS: Smakefile
- copy to $@ <from <
-$(SCOPTIONS)
-<
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zutil.h zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: zutil.h zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
+++ /dev/null
-/* compress.c -- compress a memory buffer
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: compress.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "zlib.h"
-
-/* ===========================================================================
- Compresses the source buffer into the destination buffer. The level
- parameter has the same meaning as in deflateInit. sourceLen is the byte
- length of the source buffer. Upon entry, destLen is the total size of the
- destination buffer, which must be at least 0.1% larger than sourceLen plus
- 12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
-
- compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_BUF_ERROR if there was not enough room in the output buffer,
- Z_STREAM_ERROR if the level parameter is invalid.
-*/
-int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
- int level;
-{
- z_stream stream;
- int err;
-
- stream.next_in = (Bytef*)source;
- stream.avail_in = (uInt)sourceLen;
-#ifdef MAXSEG_64K
- /* Check for source > 64K on 16-bit machine: */
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-#endif
- stream.next_out = dest;
- stream.avail_out = (uInt)*destLen;
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
-
- stream.zalloc = (alloc_func)0;
- stream.zfree = (free_func)0;
- stream.opaque = (voidpf)0;
-
- err = deflateInit(&stream, level);
- if (err != Z_OK) return err;
-
- err = deflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- deflateEnd(&stream);
- return err == Z_OK ? Z_BUF_ERROR : err;
- }
- *destLen = stream.total_out;
-
- err = deflateEnd(&stream);
- return err;
-}
-
-/* ===========================================================================
- */
-int ZEXPORT compress (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
-{
- return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
-}
+++ /dev/null
-#!/bin/sh
-# configure script for zlib. This script is needed only if
-# you wish to build a shared library and your system supports them,
-# of if you need special compiler, flags or install directory.
-# Otherwise, you can just use directly "make test; make install"
-#
-# To create a shared library, use "configure --shared"; by default a static
-# library is created. If the primitive shared library support provided here
-# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz
-#
-# To impose specific compiler or flags or install directory, use for example:
-# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
-# or for csh/tcsh users:
-# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
-# LDSHARED is the command to be used to create a shared library
-
-# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
-# If you have problems, try without defining CC and CFLAGS before reporting
-# an error.
-
-LIBS=libz.a
-SHAREDLIB=libz.so
-VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
-AR=${AR-"ar rc"}
-RANLIB=${RANLIB-"ranlib"}
-prefix=${prefix-/usr/local}
-exec_prefix=${exec_prefix-'${prefix}'}
-libdir=${libdir-'${exec_prefix}/lib'}
-includedir=${includedir-'${prefix}/include'}
-shared_ext='.so'
-shared=0
-gcc=0
-old_cc="$CC"
-old_cflags="$CFLAGS"
-
-while test $# -ge 1
-do
-case "$1" in
- -h* | --h*)
- echo 'usage:'
- echo ' configure [--shared] [--prefix=PREFIX] [--exec_prefix=EXPREFIX]'
- echo ' [--libdir=LIBDIR] [--includedir=INCLUDEDIR]'
- exit 0;;
- -p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
- -e*=* | --e*=*) exec_prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
- -l*=* | --libdir=*) libdir=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
- -i*=* | --includedir=*) includedir=`echo $1 | sed 's/[-a-z_]*=//'`;shift;;
- -p* | --p*) prefix="$2"; shift; shift;;
- -e* | --e*) exec_prefix="$2"; shift; shift;;
- -l* | --l*) libdir="$2"; shift; shift;;
- -i* | --i*) includedir="$2"; shift; shift;;
- -s* | --s*) shared=1; shift;;
- esac
-done
-
-test=ztest$$
-cat > $test.c <<EOF
-extern int getchar();
-int hello() {return getchar();}
-EOF
-
-test -z "$CC" && echo Checking for gcc...
-cc=${CC-gcc}
-cflags=${CFLAGS-"-O3"}
-# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
-case "$cc" in
- *gcc*) gcc=1;;
-esac
-
-if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
- CC="$cc"
- SFLAGS=${CFLAGS-"-fPIC -O3"}
- CFLAGS="$cflags"
- case `(uname -s || echo unknown) 2>/dev/null` in
- Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};;
- *) LDSHARED=${LDSHARED-"gcc -shared"};;
- esac
-else
- # find system name and corresponding cc options
- CC=${CC-cc}
- case `(uname -sr || echo unknown) 2>/dev/null` in
- HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
- CFLAGS=${CFLAGS-"-O"}
-# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
- LDSHARED=${LDSHARED-"ld -b"}
- shared_ext='.sl'
- SHAREDLIB='libz.sl';;
- IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
- CFLAGS=${CFLAGS-"-ansi -O2"}
- LDSHARED=${LDSHARED-"cc -shared"};;
- OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
- CFLAGS=${CFLAGS-"-O -std1"}
- LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,$SHAREDLIB -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
- OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
- CFLAGS=${CFLAGS-"-O -std1"}
- LDSHARED=${LDSHARED-"cc -shared"};;
- QNX*) SFLAGS=${CFLAGS-"-4 -O"}
- CFLAGS=${CFLAGS-"-4 -O"}
- LDSHARED=${LDSHARED-"cc"}
- RANLIB=${RANLIB-"true"}
- AR="cc -A";;
- SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
- CFLAGS=${CFLAGS-"-O3"}
- LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
- SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
- CFLAGS=${CFLAGS-"-fast -xcg89"}
- LDSHARED=${LDSHARED-"cc -G"};;
- SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
- CFLAGS=${CFLAGS-"-O2"}
- LDSHARED=${LDSHARED-"ld"};;
- UNIX_System_V\ 4.2.0)
- SFLAGS=${CFLAGS-"-KPIC -O"}
- CFLAGS=${CFLAGS-"-O"}
- LDSHARED=${LDSHARED-"cc -G"};;
- UNIX_SV\ 4.2MP)
- SFLAGS=${CFLAGS-"-Kconform_pic -O"}
- CFLAGS=${CFLAGS-"-O"}
- LDSHARED=${LDSHARED-"cc -G"};;
- # send working options for other systems to support@gzip.org
- *) SFLAGS=${CFLAGS-"-O"}
- CFLAGS=${CFLAGS-"-O"}
- LDSHARED=${LDSHARED-"cc -shared"};;
- esac
-fi
-
-if test $shared -eq 1; then
- echo Checking for shared library support...
- # we must test in two steps (cc then ld), required at least on SunOS 4.x
- if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
- test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
- CFLAGS="$SFLAGS"
- LIBS="$SHAREDLIB.$VER"
- echo Building shared library $SHAREDLIB.$VER with $CC.
- elif test -z "$old_cc" -a -z "$old_cflags"; then
- echo No shared library suppport.
- shared=0;
- else
- echo 'No shared library suppport; try without defining CC and CFLAGS'
- shared=0;
- fi
-fi
-if test $shared -eq 0; then
- LDSHARED="$CC"
- echo Building static library $LIBS version $VER with $CC.
-fi
-
-cat > $test.c <<EOF
-#include <unistd.h>
-int main() { return 0; }
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- CFLAGS="$CFLAGS -DHAVE_UNISTD_H"
- echo "Checking for unistd.h... Yes."
-else
- echo "Checking for unistd.h... No."
-fi
-
-cat > $test.c <<EOF
-#include <errno.h>
-int main() { return 0; }
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- echo "Checking for errno.h... Yes."
-else
- echo "Checking for errno.h... No."
- CFLAGS="$CFLAGS -DNO_ERRNO_H"
-fi
-
-cat > $test.c <<EOF
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-caddr_t hello() {
- return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
-}
-EOF
-if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
- CFLAGS="$CFLAGS -DUSE_MMAP"
- echo Checking for mmap support... Yes.
-else
- echo Checking for mmap support... No.
-fi
-
-CPP=${CPP-"$CC -E"}
-case $CFLAGS in
- *ASMV*)
- if test "`nm $test.o | grep _hello`" = ""; then
- CPP="$CPP -DNO_UNDERLINE"
- echo Checking for underline in external names... No.
- else
- echo Checking for underline in external names... Yes.
- fi;;
-esac
-
-rm -f $test.[co] $test$shared_ext
-
-# udpate Makefile
-sed < Makefile.in "
-/^CC *=/s%=.*%=$CC%
-/^CFLAGS *=/s%=.*%=$CFLAGS%
-/^CPP *=/s%=.*%=$CPP%
-/^LDSHARED *=/s%=.*%=$LDSHARED%
-/^LIBS *=/s%=.*%=$LIBS%
-/^SHAREDLIB *=/s%=.*%=$SHAREDLIB%
-/^AR *=/s%=.*%=$AR%
-/^RANLIB *=/s%=.*%=$RANLIB%
-/^VER *=/s%=.*%=$VER%
-/^prefix *=/s%=.*%=$prefix%
-/^exec_prefix *=/s%=.*%=$exec_prefix%
-/^libdir *=/s%=.*%=$libdir%
-/^includedir *=/s%=.*%=$includedir%
-" > Makefile
+++ /dev/null
-All files under this contrib directory are UNSUPPORTED. There were
-provided by users of zlib and were not tested by the authors of zlib.
-Use at your own risk. Please contact the authors of the contributions
-for help about these, not the zlib authors. Thanks.
-
-
-asm386/ by Gilles Vollant <info@winimage.com>
- 386 asm code replacing longest_match(), for Visual C++ 4.2 and ML 6.11c
-
-asm586/ and asm686/ by Brian Raiter <breadbox@muppetlabs.com>
- asm code for Pentium and Pentium Pro
- See http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-delphi/ by Bob Dellaca <bobdl@xtra.co.nz>
- Support for Delphi
-
-delphi2/ by Davide Moretti <dave@rimini.com>
- Another support for C++Builder and Delphi
-
-minizip/ by Gilles Vollant <info@winimage.com>
- Mini zip and unzip based on zlib
- See http://www.winimage.com/zLibDll/unzip.html
-
-iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
- A C++ I/O streams interface to the zlib gz* functions
-
-iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no>
- Another C++ I/O streams interface
-
-untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
- A very simple tar.gz file extractor using zlib
-
-visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
- How to use compress(), uncompress() and the gz* functions from VB.
+++ /dev/null
-;
-; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86
-; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
-; File written by Gilles Vollant, by modifiying the longest_match
-; from Jean-loup Gailly in deflate.c
-; It need wmask == 0x7fff
-; (assembly code is faster with a fixed wmask)
-;
-; For Visual C++ 4.2 and ML 6.11c (version in directory \MASM611C of Win95 DDK)
-; I compile with : "ml /coff /Zi /c gvmat32.asm"
-;
-
-;uInt longest_match_7fff(s, cur_match)
-; deflate_state *s;
-; IPos cur_match; /* current match */
-
- NbStack equ 76
- cur_match equ dword ptr[esp+NbStack-0]
- str_s equ dword ptr[esp+NbStack-4]
-; 5 dword on top (ret,ebp,esi,edi,ebx)
- adrret equ dword ptr[esp+NbStack-8]
- pushebp equ dword ptr[esp+NbStack-12]
- pushedi equ dword ptr[esp+NbStack-16]
- pushesi equ dword ptr[esp+NbStack-20]
- pushebx equ dword ptr[esp+NbStack-24]
-
- chain_length equ dword ptr [esp+NbStack-28]
- limit equ dword ptr [esp+NbStack-32]
- best_len equ dword ptr [esp+NbStack-36]
- window equ dword ptr [esp+NbStack-40]
- prev equ dword ptr [esp+NbStack-44]
- scan_start equ word ptr [esp+NbStack-48]
- wmask equ dword ptr [esp+NbStack-52]
- match_start_ptr equ dword ptr [esp+NbStack-56]
- nice_match equ dword ptr [esp+NbStack-60]
- scan equ dword ptr [esp+NbStack-64]
-
- windowlen equ dword ptr [esp+NbStack-68]
- match_start equ dword ptr [esp+NbStack-72]
- strend equ dword ptr [esp+NbStack-76]
- NbStackAdd equ (NbStack-24)
-
- .386p
-
- name gvmatch
- .MODEL FLAT
-
-
-
-; all the +4 offsets are due to the addition of pending_buf_size (in zlib
-; in the deflate_state structure since the asm code was first written
-; (if you compile with zlib 1.0.4 or older, remove the +4).
-; Note : these value are good with a 8 bytes boundary pack structure
- dep_chain_length equ 70h+4
- dep_window equ 2ch+4
- dep_strstart equ 60h+4
- dep_prev_length equ 6ch+4
- dep_nice_match equ 84h+4
- dep_w_size equ 20h+4
- dep_prev equ 34h+4
- dep_w_mask equ 28h+4
- dep_good_match equ 80h+4
- dep_match_start equ 64h+4
- dep_lookahead equ 68h+4
-
-
-_TEXT segment
-
-IFDEF NOUNDERLINE
- public longest_match_7fff
-; public match_init
-ELSE
- public _longest_match_7fff
-; public _match_init
-ENDIF
-
- MAX_MATCH equ 258
- MIN_MATCH equ 3
- MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
-
-
-
-IFDEF NOUNDERLINE
-;match_init proc near
-; ret
-;match_init endp
-ELSE
-;_match_init proc near
-; ret
-;_match_init endp
-ENDIF
-
-
-IFDEF NOUNDERLINE
-longest_match_7fff proc near
-ELSE
-_longest_match_7fff proc near
-ENDIF
-
- mov edx,[esp+4]
-
-
-
- push ebp
- push edi
- push esi
- push ebx
-
- sub esp,NbStackAdd
-
-; initialize or check the variables used in match.asm.
- mov ebp,edx
-
-; chain_length = s->max_chain_length
-; if (prev_length>=good_match) chain_length >>= 2
- mov edx,[ebp+dep_chain_length]
- mov ebx,[ebp+dep_prev_length]
- cmp [ebp+dep_good_match],ebx
- ja noshr
- shr edx,2
-noshr:
-; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop
- inc edx
- mov edi,[ebp+dep_nice_match]
- mov chain_length,edx
- mov eax,[ebp+dep_lookahead]
- cmp eax,edi
-; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
- jae nolookaheadnicematch
- mov edi,eax
-nolookaheadnicematch:
-; best_len = s->prev_length
- mov best_len,ebx
-
-; window = s->window
- mov esi,[ebp+dep_window]
- mov ecx,[ebp+dep_strstart]
- mov window,esi
-
- mov nice_match,edi
-; scan = window + strstart
- add esi,ecx
- mov scan,esi
-; dx = *window
- mov dx,word ptr [esi]
-; bx = *(window+best_len-1)
- mov bx,word ptr [esi+ebx-1]
- add esi,MAX_MATCH-1
-; scan_start = *scan
- mov scan_start,dx
-; strend = scan + MAX_MATCH-1
- mov strend,esi
-; bx = scan_end = *(window+best_len-1)
-
-; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
-; s->strstart - (IPos)MAX_DIST(s) : NIL;
-
- mov esi,[ebp+dep_w_size]
- sub esi,MIN_LOOKAHEAD
-; here esi = MAX_DIST(s)
- sub ecx,esi
- ja nodist
- xor ecx,ecx
-nodist:
- mov limit,ecx
-
-; prev = s->prev
- mov edx,[ebp+dep_prev]
- mov prev,edx
-
-;
- mov edx,dword ptr [ebp+dep_match_start]
- mov bp,scan_start
- mov eax,cur_match
- mov match_start,edx
-
- mov edx,window
- mov edi,edx
- add edi,best_len
- mov esi,prev
- dec edi
-; windowlen = window + best_len -1
- mov windowlen,edi
-
- jmp beginloop2
- align 4
-
-; here, in the loop
-; eax = ax = cur_match
-; ecx = limit
-; bx = scan_end
-; bp = scan_start
-; edi = windowlen (window + best_len -1)
-; esi = prev
-
-
-;// here; chain_length <=16
-normalbeg0add16:
- add chain_length,16
- jz exitloop
-normalbeg0:
- cmp word ptr[edi+eax],bx
- je normalbeg2noroll
-rcontlabnoroll:
-; cur_match = prev[cur_match & wmask]
- and eax,7fffh
- mov ax,word ptr[esi+eax*2]
-; if cur_match > limit, go to exitloop
- cmp ecx,eax
- jnb exitloop
-; if --chain_length != 0, go to exitloop
- dec chain_length
- jnz normalbeg0
- jmp exitloop
-
-normalbeg2noroll:
-; if (scan_start==*(cur_match+window)) goto normalbeg2
- cmp bp,word ptr[edx+eax]
- jne rcontlabnoroll
- jmp normalbeg2
-
-contloop3:
- mov edi,windowlen
-
-; cur_match = prev[cur_match & wmask]
- and eax,7fffh
- mov ax,word ptr[esi+eax*2]
-; if cur_match > limit, go to exitloop
- cmp ecx,eax
-jnbexitloopshort1:
- jnb exitloop
-; if --chain_length != 0, go to exitloop
-
-
-; begin the main loop
-beginloop2:
- sub chain_length,16+1
-; if chain_length <=16, don't use the unrolled loop
- jna normalbeg0add16
-
-do16:
- cmp word ptr[edi+eax],bx
- je normalbeg2dc0
-
-maccn MACRO lab
- and eax,7fffh
- mov ax,word ptr[esi+eax*2]
- cmp ecx,eax
- jnb exitloop
- cmp word ptr[edi+eax],bx
- je lab
- ENDM
-
-rcontloop0:
- maccn normalbeg2dc1
-
-rcontloop1:
- maccn normalbeg2dc2
-
-rcontloop2:
- maccn normalbeg2dc3
-
-rcontloop3:
- maccn normalbeg2dc4
-
-rcontloop4:
- maccn normalbeg2dc5
-
-rcontloop5:
- maccn normalbeg2dc6
-
-rcontloop6:
- maccn normalbeg2dc7
-
-rcontloop7:
- maccn normalbeg2dc8
-
-rcontloop8:
- maccn normalbeg2dc9
-
-rcontloop9:
- maccn normalbeg2dc10
-
-rcontloop10:
- maccn short normalbeg2dc11
-
-rcontloop11:
- maccn short normalbeg2dc12
-
-rcontloop12:
- maccn short normalbeg2dc13
-
-rcontloop13:
- maccn short normalbeg2dc14
-
-rcontloop14:
- maccn short normalbeg2dc15
-
-rcontloop15:
- and eax,7fffh
- mov ax,word ptr[esi+eax*2]
- cmp ecx,eax
- jnb exitloop
-
- sub chain_length,16
- ja do16
- jmp normalbeg0add16
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-normbeg MACRO rcontlab,valsub
-; if we are here, we know that *(match+best_len-1) == scan_end
- cmp bp,word ptr[edx+eax]
-; if (match != scan_start) goto rcontlab
- jne rcontlab
-; calculate the good chain_length, and we'll compare scan and match string
- add chain_length,16-valsub
- jmp iseq
- ENDM
-
-
-normalbeg2dc11:
- normbeg rcontloop11,11
-
-normalbeg2dc12:
- normbeg short rcontloop12,12
-
-normalbeg2dc13:
- normbeg short rcontloop13,13
-
-normalbeg2dc14:
- normbeg short rcontloop14,14
-
-normalbeg2dc15:
- normbeg short rcontloop15,15
-
-normalbeg2dc10:
- normbeg rcontloop10,10
-
-normalbeg2dc9:
- normbeg rcontloop9,9
-
-normalbeg2dc8:
- normbeg rcontloop8,8
-
-normalbeg2dc7:
- normbeg rcontloop7,7
-
-normalbeg2dc6:
- normbeg rcontloop6,6
-
-normalbeg2dc5:
- normbeg rcontloop5,5
-
-normalbeg2dc4:
- normbeg rcontloop4,4
-
-normalbeg2dc3:
- normbeg rcontloop3,3
-
-normalbeg2dc2:
- normbeg rcontloop2,2
-
-normalbeg2dc1:
- normbeg rcontloop1,1
-
-normalbeg2dc0:
- normbeg rcontloop0,0
-
-
-; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end
-
-normalbeg2:
- mov edi,window
-
- cmp bp,word ptr[edi+eax]
- jne contloop3 ; if *(ushf*)match != scan_start, continue
-
-iseq:
-; if we are here, we know that *(match+best_len-1) == scan_end
-; and (match == scan_start)
-
- mov edi,edx
- mov esi,scan ; esi = scan
- add edi,eax ; edi = window + cur_match = match
-
- mov edx,[esi+3] ; compare manually dword at match+3
- xor edx,[edi+3] ; and scan +3
-
- jz begincompare ; if equal, go to long compare
-
-; we will determine the unmatch byte and calculate len (in esi)
- or dl,dl
- je eq1rr
- mov esi,3
- jmp trfinval
-eq1rr:
- or dx,dx
- je eq1
-
- mov esi,4
- jmp trfinval
-eq1:
- and edx,0ffffffh
- jz eq11
- mov esi,5
- jmp trfinval
-eq11:
- mov esi,6
- jmp trfinval
-
-begincompare:
- ; here we now scan and match begin same
- add edi,6
- add esi,6
- mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes
- repe cmpsd ; loop until mismatch
-
- je trfin ; go to trfin if not unmatch
-; we determine the unmatch byte
- sub esi,4
- mov edx,[edi-4]
- xor edx,[esi]
-
- or dl,dl
- jnz trfin
- inc esi
-
- or dx,dx
- jnz trfin
- inc esi
-
- and edx,0ffffffh
- jnz trfin
- inc esi
-
-trfin:
- sub esi,scan ; esi = len
-trfinval:
-; here we have finised compare, and esi contain len of equal string
- cmp esi,best_len ; if len > best_len, go newbestlen
- ja short newbestlen
-; now we restore edx, ecx and esi, for the big loop
- mov esi,prev
- mov ecx,limit
- mov edx,window
- jmp contloop3
-
-newbestlen:
- mov best_len,esi ; len become best_len
-
- mov match_start,eax ; save new position as match_start
- cmp esi,nice_match ; if best_len >= nice_match, exit
- jae exitloop
- mov ecx,scan
- mov edx,window ; restore edx=window
- add ecx,esi
- add esi,edx
-
- dec esi
- mov windowlen,esi ; windowlen = window + best_len-1
- mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end
-
-; now we restore ecx and esi, for the big loop :
- mov esi,prev
- mov ecx,limit
- jmp contloop3
-
-exitloop:
-; exit : s->match_start=match_start
- mov ebx,match_start
- mov ebp,str_s
- mov ecx,best_len
- mov dword ptr [ebp+dep_match_start],ebx
- mov eax,dword ptr [ebp+dep_lookahead]
- cmp ecx,eax
- ja minexlo
- mov eax,ecx
-minexlo:
-; return min(best_len,s->lookahead)
-
-; restore stack and register ebx,esi,edi,ebp
- add esp,NbStackAdd
-
- pop ebx
- pop esi
- pop edi
- pop ebp
- ret
-InfoAuthor:
-; please don't remove this string !
-; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary!
- db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah
-
-
-
-IFDEF NOUNDERLINE
-longest_match_7fff endp
-ELSE
-_longest_match_7fff endp
-ENDIF
-
-
-IFDEF NOUNDERLINE
-cpudetect32 proc near
-ELSE
-_cpudetect32 proc near
-ENDIF
-
-
- pushfd ; push original EFLAGS
- pop eax ; get original EFLAGS
- mov ecx, eax ; save original EFLAGS
- xor eax, 40000h ; flip AC bit in EFLAGS
- push eax ; save new EFLAGS value on stack
- popfd ; replace current EFLAGS value
- pushfd ; get new EFLAGS
- pop eax ; store new EFLAGS in EAX
- xor eax, ecx ; can\92t toggle AC bit, processor=80386
- jz end_cpu_is_386 ; jump if 80386 processor
- push ecx
- popfd ; restore AC bit in EFLAGS first
-
- pushfd
- pushfd
- pop ecx
-
- mov eax, ecx ; get original EFLAGS
- xor eax, 200000h ; flip ID bit in EFLAGS
- push eax ; save new EFLAGS value on stack
- popfd ; replace current EFLAGS value
- pushfd ; get new EFLAGS
- pop eax ; store new EFLAGS in EAX
- popfd ; restore original EFLAGS
- xor eax, ecx ; can\92t toggle ID bit,
- je is_old_486 ; processor=old
-
- mov eax,1
- db 0fh,0a2h ;CPUID
-
-exitcpudetect:
- ret
-
-end_cpu_is_386:
- mov eax,0300h
- jmp exitcpudetect
-
-is_old_486:
- mov eax,0400h
- jmp exitcpudetect
-
-IFDEF NOUNDERLINE
-cpudetect32 endp
-ELSE
-_cpudetect32 endp
-ENDIF
-
-_TEXT ends
-end
+++ /dev/null
-/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86
- * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
- * File written by Gilles Vollant, by modifiying the longest_match
- * from Jean-loup Gailly in deflate.c
- * it prepare all parameters and call the assembly longest_match_gvasm
- * longest_match execute standard C code is wmask != 0x7fff
- * (assembly code is faster with a fixed wmask)
- *
- */
-
-#include "deflate.h"
-
-#undef FAR
-#include <windows.h>
-
-#ifdef ASMV
-#define NIL 0
-
-#define UNALIGNED_OK
-
-
-/* if your C compiler don't add underline before function name,
- define ADD_UNDERLINE_ASMFUNC */
-#ifdef ADD_UNDERLINE_ASMFUNC
-#define longest_match_7fff _longest_match_7fff
-#endif
-
-
-
-void match_init()
-{
-}
-
-unsigned long cpudetect32();
-
-uInt longest_match_c(
- deflate_state *s,
- IPos cur_match); /* current match */
-
-
-uInt longest_match_7fff(
- deflate_state *s,
- IPos cur_match); /* current match */
-
-uInt longest_match(
- deflate_state *s,
- IPos cur_match) /* current match */
-{
- static uInt iIsPPro=2;
-
- if ((s->w_mask == 0x7fff) && (iIsPPro==0))
- return longest_match_7fff(s,cur_match);
-
- if (iIsPPro==2)
- iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0;
-
- return longest_match_c(s,cur_match);
-}
-
-
-
-uInt longest_match_c(s, cur_match)
- deflate_state *s;
- IPos cur_match; /* current match */
-{
- unsigned chain_length = s->max_chain_length;/* max hash chain length */
- register Bytef *scan = s->window + s->strstart; /* current string */
- register Bytef *match; /* matched string */
- register int len; /* length of current match */
- int best_len = s->prev_length; /* best match length so far */
- int nice_match = s->nice_match; /* stop if match long enough */
- IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
- s->strstart - (IPos)MAX_DIST(s) : NIL;
- /* Stop when cur_match becomes <= limit. To simplify the code,
- * we prevent matches with the string of window index 0.
- */
- Posf *prev = s->prev;
- uInt wmask = s->w_mask;
-
-#ifdef UNALIGNED_OK
- /* Compare two bytes at a time. Note: this is not always beneficial.
- * Try with and without -DUNALIGNED_OK to check.
- */
- register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
- register ush scan_start = *(ushf*)scan;
- register ush scan_end = *(ushf*)(scan+best_len-1);
-#else
- register Bytef *strend = s->window + s->strstart + MAX_MATCH;
- register Byte scan_end1 = scan[best_len-1];
- register Byte scan_end = scan[best_len];
-#endif
-
- /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
- * It is easy to get rid of this optimization if necessary.
- */
- Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
- /* Do not waste too much time if we already have a good match: */
- if (s->prev_length >= s->good_match) {
- chain_length >>= 2;
- }
- /* Do not look for matches beyond the end of the input. This is necessary
- * to make deflate deterministic.
- */
- if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
- Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
- do {
- Assert(cur_match < s->strstart, "no future");
- match = s->window + cur_match;
-
- /* Skip to next match if the match length cannot increase
- * or if the match length is less than 2:
- */
-#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
- /* This code assumes sizeof(unsigned short) == 2. Do not use
- * UNALIGNED_OK if your compiler uses a different size.
- */
- if (*(ushf*)(match+best_len-1) != scan_end ||
- *(ushf*)match != scan_start) continue;
-
- /* It is not necessary to compare scan[2] and match[2] since they are
- * always equal when the other bytes match, given that the hash keys
- * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
- * strstart+3, +5, ... up to strstart+257. We check for insufficient
- * lookahead only every 4th comparison; the 128th check will be made
- * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
- * necessary to put more guard bytes at the end of the window, or
- * to check more often for insufficient lookahead.
- */
- Assert(scan[2] == match[2], "scan[2]?");
- scan++, match++;
- do {
- } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- scan < strend);
- /* The funny "do {}" generates better code on most compilers */
-
- /* Here, scan <= window+strstart+257 */
- Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
- if (*scan == *match) scan++;
-
- len = (MAX_MATCH - 1) - (int)(strend-scan);
- scan = strend - (MAX_MATCH-1);
-
-#else /* UNALIGNED_OK */
-
- if (match[best_len] != scan_end ||
- match[best_len-1] != scan_end1 ||
- *match != *scan ||
- *++match != scan[1]) continue;
-
- /* The check at best_len-1 can be removed because it will be made
- * again later. (This heuristic is not always a win.)
- * It is not necessary to compare scan[2] and match[2] since they
- * are always equal when the other bytes match, given that
- * the hash keys are equal and that HASH_BITS >= 8.
- */
- scan += 2, match++;
- Assert(*scan == *match, "match[2]?");
-
- /* We check for insufficient lookahead only every 8th comparison;
- * the 256th check will be made at strstart+258.
- */
- do {
- } while (*++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- scan < strend);
-
- Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
- len = MAX_MATCH - (int)(strend - scan);
- scan = strend - MAX_MATCH;
-
-#endif /* UNALIGNED_OK */
-
- if (len > best_len) {
- s->match_start = cur_match;
- best_len = len;
- if (len >= nice_match) break;
-#ifdef UNALIGNED_OK
- scan_end = *(ushf*)(scan+best_len-1);
-#else
- scan_end1 = scan[best_len-1];
- scan_end = scan[best_len];
-#endif
- }
- } while ((cur_match = prev[cur_match & wmask]) > limit
- && --chain_length != 0);
-
- if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
- return s->lookahead;
-}
-
-#endif /* ASMV */
+++ /dev/null
-c:\masm611\bin\ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
+++ /dev/null
-LIBRARY "zlib"
-
-DESCRIPTION '"""zlib data compression library"""'
-
-
-VERSION 1.11
-
-
-HEAPSIZE 1048576,8192
-
-EXPORTS
- adler32 @1
- compress @2
- crc32 @3
- deflate @4
- deflateCopy @5
- deflateEnd @6
- deflateInit2_ @7
- deflateInit_ @8
- deflateParams @9
- deflateReset @10
- deflateSetDictionary @11
- gzclose @12
- gzdopen @13
- gzerror @14
- gzflush @15
- gzopen @16
- gzread @17
- gzwrite @18
- inflate @19
- inflateEnd @20
- inflateInit2_ @21
- inflateInit_ @22
- inflateReset @23
- inflateSetDictionary @24
- inflateSync @25
- uncompress @26
- zlibVersion @27
- gzprintf @28
- gzputc @29
- gzgetc @30
- gzseek @31
- gzrewind @32
- gztell @33
- gzeof @34
- gzsetparams @35
- zError @36
- inflateSyncPoint @37
- get_crc_table @38
- compress2 @39
- gzputs @40
- gzgets @41
-
- unzOpen @61
- unzClose @62
- unzGetGlobalInfo @63
- unzGetCurrentFileInfo @64
- unzGoToFirstFile @65
- unzGoToNextFile @66
- unzOpenCurrentFile @67
- unzReadCurrentFile @68
- unztell @70
- unzeof @71
- unzCloseCurrentFile @72
- unzGetGlobalComment @73
- unzStringFileNameCompare @74
- unzLocateFile @75
- unzGetLocalExtrafield @76
-
- zipOpen @80
- zipOpenNewFileInZip @81
- zipWriteInFileInZip @82
- zipCloseFileInZip @83
- zipClose @84
+++ /dev/null
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-# Microsoft Developer Studio Generated Build File, Format Version 5.00
-# ** DO NOT EDIT **
-
-# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
-# TARGTYPE "Win32 (ALPHA) Dynamic-Link Library" 0x0602
-
-CFG=zlibvc - Win32 Release
-!MESSAGE This is not a valid makefile. To build this project using NMAKE,
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-!MESSAGE "zlibvc - Win32 ReleaseAxp" (based on\
- "Win32 (ALPHA) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 ReleaseWithoutAsm" (based on\
- "Win32 (x86) Dynamic-Link Library")
-!MESSAGE "zlibvc - Win32 ReleaseWithoutCrtdll" (based on\
- "Win32 (x86) Dynamic-Link Library")
-!MESSAGE
-
-# Begin Project
-# PROP Scc_ProjName ""
-# PROP Scc_LocalPath ""
-
-!IF "$(CFG)" == "zlibvc - Win32 Release"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 0
-# PROP BASE Output_Dir ".\Release"
-# PROP BASE Intermediate_Dir ".\Release"
-# PROP BASE Target_Dir ""
-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 0
-# PROP Output_Dir ".\Release"
-# PROP Intermediate_Dir ".\Release"
-# PROP Ignore_Export_Lib 0
-# PROP Target_Dir ""
-CPP=cl.exe
-# ADD BASE CPP /nologo /MT /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_WINDOWS" /YX /c
-# ADD CPP /nologo /MT /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FR /FD /c
-# SUBTRACT CPP /YX
-MTL=midl.exe
-# ADD BASE MTL /nologo /D "NDEBUG" /win32
-# ADD MTL /nologo /D "NDEBUG" /mktyplib203 /win32
-RSC=rc.exe
-# ADD BASE RSC /l 0x40c /d "NDEBUG"
-# ADD RSC /l 0x40c /d "NDEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
-# ADD BSC32 /nologo
-LINK32=link.exe
-# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /dll /machine:I386
-# ADD LINK32 gvmat32.obj kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib crtdll.lib /nologo /subsystem:windows /dll /map /machine:I386 /nodefaultlib /out:".\Release\zlib.dll"
-# SUBTRACT LINK32 /pdb:none
-
-!ELSEIF "$(CFG)" == "zlibvc - Win32 Debug"
-
-# PROP BASE Use_MFC 0
-# PROP BASE Use_Debug_Libraries 1
-# PROP BASE Output_Dir ".\Debug"
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-# PROP Use_MFC 0
-# PROP Use_Debug_Libraries 1
-# PROP Output_Dir ".\Debug"
-# PROP Intermediate_Dir ".\Debug"
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-CPP=cl.exe
-# ADD BASE CPP /nologo /MTd /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /YX /c
-# ADD CPP /nologo /MTd /W3 /Gm /GX /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_WINDLL" /D "_WIN32" /D "BUILD_ZLIBDLL" /D "ZLIB_DLL" /FD /c
-# SUBTRACT CPP /YX
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-# ADD BASE RSC /l 0x40c /d "_DEBUG"
-# ADD RSC /l 0x40c /d "_DEBUG"
-BSC32=bscmake.exe
-# ADD BASE BSC32 /nologo
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+++ /dev/null
-This is a patched version of zlib modified to use
-Pentium-optimized assembly code in the deflation algorithm. The files
-changed/added by this patch are:
-
-README.586
-match.S
-
-The effectiveness of these modifications is a bit marginal, as the the
-program's bottleneck seems to be mostly L1-cache contention, for which
-there is no real way to work around without rewriting the basic
-algorithm. The speedup on average is around 5-10% (which is generally
-less than the amount of variance between subsequent executions).
-However, when used at level 9 compression, the cache contention can
-drop enough for the assembly version to achieve 10-20% speedup (and
-sometimes more, depending on the amount of overall redundancy in the
-files). Even here, though, cache contention can still be the limiting
-factor, depending on the nature of the program using the zlib library.
-This may also mean that better improvements will be seen on a Pentium
-with MMX, which suffers much less from L1-cache contention, but I have
-not yet verified this.
-
-Note that this code has been tailored for the Pentium in particular,
-and will not perform well on the Pentium Pro (due to the use of a
-partial register in the inner loop).
-
-If you are using an assembler other than GNU as, you will have to
-translate match.S to use your assembler's syntax. (Have fun.)
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 1998
-
-
-Added for zlib 1.1.3:
-
-The patches come from
-http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-To compile zlib with this asm file, copy match.S to the zlib directory
-then do:
-
-CFLAGS="-O3 -DASMV" ./configure
-make OBJA=match.o
+++ /dev/null
-/* match.s -- Pentium-optimized version of longest_match()
- * Written for zlib 1.1.2
- * Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License.
- */
-
-#ifndef NO_UNDERLINE
-#define match_init _match_init
-#define longest_match _longest_match
-#endif
-
-#define MAX_MATCH (258)
-#define MIN_MATCH (3)
-#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1)
-#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-
-#define wmask 0 /* local copy of s->wmask */
-#define window 4 /* local copy of s->window */
-#define windowbestlen 8 /* s->window + bestlen */
-#define chainlenscanend 12 /* high word: current chain len */
- /* low word: last bytes sought */
-#define scanstart 16 /* first two bytes of string */
-#define scanalign 20 /* dword-misalignment of string */
-#define nicematch 24 /* a good enough match size */
-#define bestlen 28 /* size of best match so far */
-#define scan 32 /* ptr to string wanting match */
-
-#define LocalVarsSize (36)
-/* saved ebx 36 */
-/* saved edi 40 */
-/* saved esi 44 */
-/* saved ebp 48 */
-/* return address 52 */
-#define deflatestate 56 /* the function arguments */
-#define curmatch 60
-
-/* Offsets for fields in the deflate_state structure. These numbers
- * are calculated from the definition of deflate_state, with the
- * assumption that the compiler will dword-align the fields. (Thus,
- * changing the definition of deflate_state could easily cause this
- * program to crash horribly, without so much as a warning at
- * compile time. Sigh.)
- */
-#define dsWSize 36
-#define dsWMask 44
-#define dsWindow 48
-#define dsPrev 56
-#define dsMatchLen 88
-#define dsPrevMatch 92
-#define dsStrStart 100
-#define dsMatchStart 104
-#define dsLookahead 108
-#define dsPrevLen 112
-#define dsMaxChainLen 116
-#define dsGoodMatch 132
-#define dsNiceMatch 136
-
-
-.file "match.S"
-
-.globl match_init, longest_match
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-
-longest_match:
-
-/* Save registers that the compiler may be using, and adjust %esp to */
-/* make room for our stack frame. */
-
- pushl %ebp
- pushl %edi
- pushl %esi
- pushl %ebx
- subl $LocalVarsSize, %esp
-
-/* Retrieve the function arguments. %ecx will hold cur_match */
-/* throughout the entire function. %edx will hold the pointer to the */
-/* deflate_state structure during the function's setup (before */
-/* entering the main loop). */
-
- movl deflatestate(%esp), %edx
- movl curmatch(%esp), %ecx
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */
-
- movl dsNiceMatch(%edx), %eax
- movl dsLookahead(%edx), %ebx
- cmpl %eax, %ebx
- jl LookaheadLess
- movl %eax, %ebx
-LookaheadLess: movl %ebx, nicematch(%esp)
-
-/* register Bytef *scan = s->window + s->strstart; */
-
- movl dsWindow(%edx), %esi
- movl %esi, window(%esp)
- movl dsStrStart(%edx), %ebp
- lea (%esi,%ebp), %edi
- movl %edi, scan(%esp)
-
-/* Determine how many bytes the scan ptr is off from being */
-/* dword-aligned. */
-
- movl %edi, %eax
- negl %eax
- andl $3, %eax
- movl %eax, scanalign(%esp)
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */
-/* s->strstart - (IPos)MAX_DIST(s) : NIL; */
-
- movl dsWSize(%edx), %eax
- subl $MIN_LOOKAHEAD, %eax
- subl %eax, %ebp
- jg LimitPositive
- xorl %ebp, %ebp
-LimitPositive:
-
-/* unsigned chain_length = s->max_chain_length; */
-/* if (s->prev_length >= s->good_match) { */
-/* chain_length >>= 2; */
-/* } */
-
- movl dsPrevLen(%edx), %eax
- movl dsGoodMatch(%edx), %ebx
- cmpl %ebx, %eax
- movl dsMaxChainLen(%edx), %ebx
- jl LastMatchGood
- shrl $2, %ebx
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can */
-/* use the sign flag instead of the zero flag for the exit test. */
-/* It is then shifted into the high word, to make room for the scanend */
-/* scanend value, which it will always accompany. */
-
- decl %ebx
- shll $16, %ebx
-
-/* int best_len = s->prev_length; */
-
- movl dsPrevLen(%edx), %eax
- movl %eax, bestlen(%esp)
-
-/* Store the sum of s->window + best_len in %esi locally, and in %esi. */
-
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
-
-/* register ush scan_start = *(ushf*)scan; */
-/* register ush scan_end = *(ushf*)(scan+best_len-1); */
-
- movw (%edi), %bx
- movw %bx, scanstart(%esp)
- movw -1(%edi,%eax), %bx
- movl %ebx, chainlenscanend(%esp)
-
-/* Posf *prev = s->prev; */
-/* uInt wmask = s->w_mask; */
-
- movl dsPrev(%edx), %edi
- movl dsWMask(%edx), %edx
- mov %edx, wmask(%esp)
-
-/* Jump into the main loop. */
-
- jmp LoopEntry
-
-.balign 16
-
-/* do {
- * match = s->window + cur_match;
- * if (*(ushf*)(match+best_len-1) != scan_end ||
- * *(ushf*)match != scan_start) continue;
- * [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- * && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- *
- * Within this loop:
- * %ebx = chainlenscanend - i.e., ((chainlen << 16) | scanend)
- * %ecx = curmatch
- * %edx = curmatch & wmask
- * %esi = windowbestlen - i.e., (window + bestlen)
- * %edi = prev
- * %ebp = limit
- *
- * Two optimization notes on the choice of instructions:
- *
- * The first instruction uses a 16-bit address, which costs an extra,
- * unpairable cycle. This is cheaper than doing a 32-bit access and
- * zeroing the high word, due to the 3-cycle misalignment penalty which
- * would occur half the time. This also turns out to be cheaper than
- * doing two separate 8-bit accesses, as the memory is so rarely in the
- * L1 cache.
- *
- * The window buffer, however, apparently spends a lot of time in the
- * cache, and so it is faster to retrieve the word at the end of the
- * match string with two 8-bit loads. The instructions that test the
- * word at the beginning of the match string, however, are executed
- * much less frequently, and there it was cheaper to use 16-bit
- * instructions, which avoided the necessity of saving off and
- * subsequently reloading one of the other registers.
- */
-LookupLoop:
- /* 1 U & V */
- movw (%edi,%edx,2), %cx /* 2 U pipe */
- movl wmask(%esp), %edx /* 2 V pipe */
- cmpl %ebp, %ecx /* 3 U pipe */
- jbe LeaveNow /* 3 V pipe */
- subl $0x00010000, %ebx /* 4 U pipe */
- js LeaveNow /* 4 V pipe */
-LoopEntry: movb -1(%esi,%ecx), %al /* 5 U pipe */
- andl %ecx, %edx /* 5 V pipe */
- cmpb %bl, %al /* 6 U pipe */
- jnz LookupLoop /* 6 V pipe */
- movb (%esi,%ecx), %ah
- cmpb %bh, %ah
- jnz LookupLoop
- movl window(%esp), %eax
- movw (%eax,%ecx), %ax
- cmpw scanstart(%esp), %ax
- jnz LookupLoop
-
-/* Store the current value of chainlen. */
-
- movl %ebx, chainlenscanend(%esp)
-
-/* Point %edi to the string under scrutiny, and %esi to the string we */
-/* are hoping to match it up with. In actuality, %esi and %edi are */
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */
-/* initialized to -(MAX_MATCH_8 - scanalign). */
-
- movl window(%esp), %esi
- movl scan(%esp), %edi
- addl %ecx, %esi
- movl scanalign(%esp), %eax
- movl $(-MAX_MATCH_8), %edx
- lea MAX_MATCH_8(%edi,%eax), %edi
- lea MAX_MATCH_8(%esi,%eax), %esi
-
-/* Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %edx so that it is offset to the exact byte that mismatched.
- *
- * We already know at this point that the first three bytes of the
- * strings match each other, and they can be safely passed over before
- * starting the compare loop. So what this code does is skip over 0-3
- * bytes, as much as necessary in order to dword-align the %edi
- * pointer. (%esi will still be misaligned three times out of four.)
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance.
- */
-LoopCmps:
- movl (%esi,%edx), %eax
- movl (%edi,%edx), %ebx
- xorl %ebx, %eax
- jnz LeaveLoopCmps
- movl 4(%esi,%edx), %eax
- movl 4(%edi,%edx), %ebx
- xorl %ebx, %eax
- jnz LeaveLoopCmps4
- addl $8, %edx
- jnz LoopCmps
- jmp LenMaximum
-LeaveLoopCmps4: addl $4, %edx
-LeaveLoopCmps: testl $0x0000FFFF, %eax
- jnz LenLower
- addl $2, %edx
- shrl $16, %eax
-LenLower: subb $1, %al
- adcl $0, %edx
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH, */
-/* then automatically accept it as the best possible match and leave. */
-
- lea (%edi,%edx), %eax
- movl scan(%esp), %edi
- subl %edi, %eax
- cmpl $MAX_MATCH, %eax
- jge LenMaximum
-
-/* If the length of the match is not longer than the best match we */
-/* have so far, then forget it and return to the lookup loop. */
-
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- cmpl %ebx, %eax
- jg LongerMatch
- movl chainlenscanend(%esp), %ebx
- movl windowbestlen(%esp), %esi
- movl dsPrev(%edx), %edi
- movl wmask(%esp), %edx
- andl %ecx, %edx
- jmp LookupLoop
-
-/* s->match_start = cur_match; */
-/* best_len = len; */
-/* if (len >= nice_match) break; */
-/* scan_end = *(ushf*)(scan+best_len-1); */
-
-LongerMatch: movl nicematch(%esp), %ebx
- movl %eax, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
- cmpl %ebx, %eax
- jge LeaveNow
- movl window(%esp), %esi
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
- movl chainlenscanend(%esp), %ebx
- movw -1(%edi,%eax), %bx
- movl dsPrev(%edx), %edi
- movl %ebx, chainlenscanend(%esp)
- movl wmask(%esp), %edx
- andl %ecx, %edx
- jmp LookupLoop
-
-/* Accept the current string, with the maximum possible length. */
-
-LenMaximum: movl deflatestate(%esp), %edx
- movl $MAX_MATCH, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */
-/* return s->lookahead; */
-
-LeaveNow:
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- movl dsLookahead(%edx), %eax
- cmpl %eax, %ebx
- jg LookaheadRet
- movl %ebx, %eax
-LookaheadRet:
-
-/* Restore the stack and return from whence we came. */
-
- addl $LocalVarsSize, %esp
- popl %ebx
- popl %esi
- popl %edi
- popl %ebp
-match_init: ret
+++ /dev/null
-This is a patched version of zlib, modified to use
-Pentium-Pro-optimized assembly code in the deflation algorithm. The
-files changed/added by this patch are:
-
-README.686
-match.S
-
-The speedup that this patch provides varies, depending on whether the
-compiler used to build the original version of zlib falls afoul of the
-PPro's speed traps. My own tests show a speedup of around 10-20% at
-the default compression level, and 20-30% using -9, against a version
-compiled using gcc 2.7.2.3. Your mileage may vary.
-
-Note that this code has been tailored for the PPro/PII in particular,
-and will not perform particuarly well on a Pentium.
-
-If you are using an assembler other than GNU as, you will have to
-translate match.S to use your assembler's syntax. (Have fun.)
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 1998
-
-
-Added for zlib 1.1.3:
-
-The patches come from
-http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-To compile zlib with this asm file, copy match.S to the zlib directory
-then do:
-
-CFLAGS="-O3 -DASMV" ./configure
-make OBJA=match.o
+++ /dev/null
-/* match.s -- Pentium-Pro-optimized version of longest_match()
- * Written for zlib 1.1.2
- * Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License.
- */
-
-#ifndef NO_UNDERLINE
-#define match_init _match_init
-#define longest_match _longest_match
-#endif
-
-#define MAX_MATCH (258)
-#define MIN_MATCH (3)
-#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1)
-#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-
-#define chainlenwmask 0 /* high word: current chain len */
- /* low word: s->wmask */
-#define window 4 /* local copy of s->window */
-#define windowbestlen 8 /* s->window + bestlen */
-#define scanstart 16 /* first two bytes of string */
-#define scanend 12 /* last two bytes of string */
-#define scanalign 20 /* dword-misalignment of string */
-#define nicematch 24 /* a good enough match size */
-#define bestlen 28 /* size of best match so far */
-#define scan 32 /* ptr to string wanting match */
-
-#define LocalVarsSize (36)
-/* saved ebx 36 */
-/* saved edi 40 */
-/* saved esi 44 */
-/* saved ebp 48 */
-/* return address 52 */
-#define deflatestate 56 /* the function arguments */
-#define curmatch 60
-
-/* Offsets for fields in the deflate_state structure. These numbers
- * are calculated from the definition of deflate_state, with the
- * assumption that the compiler will dword-align the fields. (Thus,
- * changing the definition of deflate_state could easily cause this
- * program to crash horribly, without so much as a warning at
- * compile time. Sigh.)
- */
-#define dsWSize 36
-#define dsWMask 44
-#define dsWindow 48
-#define dsPrev 56
-#define dsMatchLen 88
-#define dsPrevMatch 92
-#define dsStrStart 100
-#define dsMatchStart 104
-#define dsLookahead 108
-#define dsPrevLen 112
-#define dsMaxChainLen 116
-#define dsGoodMatch 132
-#define dsNiceMatch 136
-
-
-.file "match.S"
-
-.globl match_init, longest_match
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-
-longest_match:
-
-/* Save registers that the compiler may be using, and adjust %esp to */
-/* make room for our stack frame. */
-
- pushl %ebp
- pushl %edi
- pushl %esi
- pushl %ebx
- subl $LocalVarsSize, %esp
-
-/* Retrieve the function arguments. %ecx will hold cur_match */
-/* throughout the entire function. %edx will hold the pointer to the */
-/* deflate_state structure during the function's setup (before */
-/* entering the main loop). */
-
- movl deflatestate(%esp), %edx
- movl curmatch(%esp), %ecx
-
-/* uInt wmask = s->w_mask; */
-/* unsigned chain_length = s->max_chain_length; */
-/* if (s->prev_length >= s->good_match) { */
-/* chain_length >>= 2; */
-/* } */
-
- movl dsPrevLen(%edx), %eax
- movl dsGoodMatch(%edx), %ebx
- cmpl %ebx, %eax
- movl dsWMask(%edx), %eax
- movl dsMaxChainLen(%edx), %ebx
- jl LastMatchGood
- shrl $2, %ebx
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can */
-/* use the sign flag instead of the zero flag for the exit test. */
-/* It is then shifted into the high word, to make room for the wmask */
-/* value, which it will always accompany. */
-
- decl %ebx
- shll $16, %ebx
- orl %eax, %ebx
- movl %ebx, chainlenwmask(%esp)
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */
-
- movl dsNiceMatch(%edx), %eax
- movl dsLookahead(%edx), %ebx
- cmpl %eax, %ebx
- jl LookaheadLess
- movl %eax, %ebx
-LookaheadLess: movl %ebx, nicematch(%esp)
-
-/* register Bytef *scan = s->window + s->strstart; */
-
- movl dsWindow(%edx), %esi
- movl %esi, window(%esp)
- movl dsStrStart(%edx), %ebp
- lea (%esi,%ebp), %edi
- movl %edi, scan(%esp)
-
-/* Determine how many bytes the scan ptr is off from being */
-/* dword-aligned. */
-
- movl %edi, %eax
- negl %eax
- andl $3, %eax
- movl %eax, scanalign(%esp)
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */
-/* s->strstart - (IPos)MAX_DIST(s) : NIL; */
-
- movl dsWSize(%edx), %eax
- subl $MIN_LOOKAHEAD, %eax
- subl %eax, %ebp
- jg LimitPositive
- xorl %ebp, %ebp
-LimitPositive:
-
-/* int best_len = s->prev_length; */
-
- movl dsPrevLen(%edx), %eax
- movl %eax, bestlen(%esp)
-
-/* Store the sum of s->window + best_len in %esi locally, and in %esi. */
-
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
-
-/* register ush scan_start = *(ushf*)scan; */
-/* register ush scan_end = *(ushf*)(scan+best_len-1); */
-/* Posf *prev = s->prev; */
-
- movzwl (%edi), %ebx
- movl %ebx, scanstart(%esp)
- movzwl -1(%edi,%eax), %ebx
- movl %ebx, scanend(%esp)
- movl dsPrev(%edx), %edi
-
-/* Jump into the main loop. */
-
- movl chainlenwmask(%esp), %edx
- jmp LoopEntry
-
-.balign 16
-
-/* do {
- * match = s->window + cur_match;
- * if (*(ushf*)(match+best_len-1) != scan_end ||
- * *(ushf*)match != scan_start) continue;
- * [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- * && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- *
- * Within this loop:
- * %ebx = scanend
- * %ecx = curmatch
- * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
- * %esi = windowbestlen - i.e., (window + bestlen)
- * %edi = prev
- * %ebp = limit
- */
-LookupLoop:
- andl %edx, %ecx
- movzwl (%edi,%ecx,2), %ecx
- cmpl %ebp, %ecx
- jbe LeaveNow
- subl $0x00010000, %edx
- js LeaveNow
-LoopEntry: movzwl -1(%esi,%ecx), %eax
- cmpl %ebx, %eax
- jnz LookupLoop
- movl window(%esp), %eax
- movzwl (%eax,%ecx), %eax
- cmpl scanstart(%esp), %eax
- jnz LookupLoop
-
-/* Store the current value of chainlen. */
-
- movl %edx, chainlenwmask(%esp)
-
-/* Point %edi to the string under scrutiny, and %esi to the string we */
-/* are hoping to match it up with. In actuality, %esi and %edi are */
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */
-/* initialized to -(MAX_MATCH_8 - scanalign). */
-
- movl window(%esp), %esi
- movl scan(%esp), %edi
- addl %ecx, %esi
- movl scanalign(%esp), %eax
- movl $(-MAX_MATCH_8), %edx
- lea MAX_MATCH_8(%edi,%eax), %edi
- lea MAX_MATCH_8(%esi,%eax), %esi
-
-/* Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %edx so that it is offset to the exact byte that mismatched.
- *
- * We already know at this point that the first three bytes of the
- * strings match each other, and they can be safely passed over before
- * starting the compare loop. So what this code does is skip over 0-3
- * bytes, as much as necessary in order to dword-align the %edi
- * pointer. (%esi will still be misaligned three times out of four.)
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance.
- */
-LoopCmps:
- movl (%esi,%edx), %eax
- xorl (%edi,%edx), %eax
- jnz LeaveLoopCmps
- movl 4(%esi,%edx), %eax
- xorl 4(%edi,%edx), %eax
- jnz LeaveLoopCmps4
- addl $8, %edx
- jnz LoopCmps
- jmp LenMaximum
-LeaveLoopCmps4: addl $4, %edx
-LeaveLoopCmps: testl $0x0000FFFF, %eax
- jnz LenLower
- addl $2, %edx
- shrl $16, %eax
-LenLower: subb $1, %al
- adcl $0, %edx
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH, */
-/* then automatically accept it as the best possible match and leave. */
-
- lea (%edi,%edx), %eax
- movl scan(%esp), %edi
- subl %edi, %eax
- cmpl $MAX_MATCH, %eax
- jge LenMaximum
-
-/* If the length of the match is not longer than the best match we */
-/* have so far, then forget it and return to the lookup loop. */
-
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- cmpl %ebx, %eax
- jg LongerMatch
- movl windowbestlen(%esp), %esi
- movl dsPrev(%edx), %edi
- movl scanend(%esp), %ebx
- movl chainlenwmask(%esp), %edx
- jmp LookupLoop
-
-/* s->match_start = cur_match; */
-/* best_len = len; */
-/* if (len >= nice_match) break; */
-/* scan_end = *(ushf*)(scan+best_len-1); */
-
-LongerMatch: movl nicematch(%esp), %ebx
- movl %eax, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
- cmpl %ebx, %eax
- jge LeaveNow
- movl window(%esp), %esi
- addl %eax, %esi
- movl %esi, windowbestlen(%esp)
- movzwl -1(%edi,%eax), %ebx
- movl dsPrev(%edx), %edi
- movl %ebx, scanend(%esp)
- movl chainlenwmask(%esp), %edx
- jmp LookupLoop
-
-/* Accept the current string, with the maximum possible length. */
-
-LenMaximum: movl deflatestate(%esp), %edx
- movl $MAX_MATCH, bestlen(%esp)
- movl %ecx, dsMatchStart(%edx)
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */
-/* return s->lookahead; */
-
-LeaveNow:
- movl deflatestate(%esp), %edx
- movl bestlen(%esp), %ebx
- movl dsLookahead(%edx), %eax
- cmpl %eax, %ebx
- jg LookaheadRet
- movl %ebx, %eax
-LookaheadRet:
-
-/* Restore the stack and return from whence we came. */
-
- addl $LocalVarsSize, %esp
- popl %ebx
- popl %esi
- popl %edi
- popl %ebp
-match_init: ret
+++ /dev/null
-# Makefile for zlib32bd.lib
-# ------------- Borland C++ 4.5 -------------
-
-# The (32-bit) zlib32bd.lib made with this makefile is intended for use
-# in making the (32-bit) DLL, png32bd.dll. It uses the "stdcall" calling
-# convention.
-
-CFLAGS= -ps -O2 -C -K -N- -k- -d -3 -r- -w-par -w-aus -WDE
-CC=f:\bc45\bin\bcc32
-LIBFLAGS= /C
-LIB=f:\bc45\bin\tlib
-ZLIB=zlib32bd.lib
-
-.autodepend
-.c.obj:
- $(CC) -c $(CFLAGS) $<
-
-OBJ1=adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj
-OBJ2=infcodes.obj inflate.obj inftrees.obj infutil.obj inffast.obj
-OBJ3=trees.obj uncompr.obj zutil.obj
-pOBJ1=+adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infblock.obj
-pOBJ2=+infcodes.obj+inflate.obj+inftrees.obj+infutil.obj+inffast.obj
-pOBJ3=+trees.obj+uncompr.obj+zutil.obj
-
-all: $(ZLIB)
-
-$(ZLIB): $(OBJ1) $(OBJ2) $(OBJ3)
- @if exist $@ del $@
- $(LIB) @&&|
-$@ $(LIBFLAGS) &
-$(pOBJ1) &
-$(pOBJ2) &
-$(pOBJ3)
-|
-
-# End of makefile for zlib32bd.lib
+++ /dev/null
-unit zlibdef;
-
-interface
-
-uses
- Windows;
-
-const
- ZLIB_VERSION = '1.1.3';
-
-type
- voidpf = Pointer;
- int = Integer;
- uInt = Cardinal;
- pBytef = PChar;
- uLong = Cardinal;
-
- alloc_func = function(opaque: voidpf; items, size: uInt): voidpf;
- stdcall;
- free_func = procedure(opaque, address: voidpf);
- stdcall;
-
- internal_state = Pointer;
-
- z_streamp = ^z_stream;
- z_stream = packed record
- next_in: pBytef; // next input byte
- avail_in: uInt; // number of bytes available at next_in
- total_in: uLong; // total nb of input bytes read so far
-
- next_out: pBytef; // next output byte should be put there
- avail_out: uInt; // remaining free space at next_out
- total_out: uLong; // total nb of bytes output so far
-
- msg: PChar; // last error message, NULL if no error
- state: internal_state; // not visible by applications
-
- zalloc: alloc_func; // used to allocate the internal state
- zfree: free_func; // used to free the internal state
- opaque: voidpf; // private data object passed to zalloc and zfree
-
- data_type: int; // best guess about the data type: ascii or binary
- adler: uLong; // adler32 value of the uncompressed data
- reserved: uLong; // reserved for future use
- end;
-
-const
- Z_NO_FLUSH = 0;
- Z_SYNC_FLUSH = 2;
- Z_FULL_FLUSH = 3;
- Z_FINISH = 4;
-
- Z_OK = 0;
- Z_STREAM_END = 1;
-
- Z_NO_COMPRESSION = 0;
- Z_BEST_SPEED = 1;
- Z_BEST_COMPRESSION = 9;
- Z_DEFAULT_COMPRESSION = -1;
-
- Z_FILTERED = 1;
- Z_HUFFMAN_ONLY = 2;
- Z_DEFAULT_STRATEGY = 0;
-
- Z_BINARY = 0;
- Z_ASCII = 1;
- Z_UNKNOWN = 2;
-
- Z_DEFLATED = 8;
-
- MAX_MEM_LEVEL = 9;
-
-function adler32(adler: uLong; const buf: pBytef; len: uInt): uLong;
- stdcall;
-function crc32(crc: uLong; const buf: pBytef; len: uInt): uLong;
- stdcall;
-function deflate(strm: z_streamp; flush: int): int;
- stdcall;
-function deflateCopy(dest, source: z_streamp): int;
- stdcall;
-function deflateEnd(strm: z_streamp): int;
- stdcall;
-function deflateInit2_(strm: z_streamp; level, method,
- windowBits, memLevel, strategy: int;
- const version: PChar; stream_size: int): int;
- stdcall;
-function deflateInit_(strm: z_streamp; level: int;
- const version: PChar; stream_size: int): int;
- stdcall;
-function deflateParams(strm: z_streamp; level, strategy: int): int;
- stdcall;
-function deflateReset(strm: z_streamp): int;
- stdcall;
-function deflateSetDictionary(strm: z_streamp;
- const dictionary: pBytef;
- dictLength: uInt): int;
- stdcall;
-function inflate(strm: z_streamp; flush: int): int;
- stdcall;
-function inflateEnd(strm: z_streamp): int;
- stdcall;
-function inflateInit2_(strm: z_streamp; windowBits: int;
- const version: PChar; stream_size: int): int;
- stdcall;
-function inflateInit_(strm: z_streamp; const version: PChar;
- stream_size: int): int;
- stdcall;
-function inflateReset(strm: z_streamp): int;
- stdcall;
-function inflateSetDictionary(strm: z_streamp;
- const dictionary: pBytef;
- dictLength: uInt): int;
- stdcall;
-function inflateSync(strm: z_streamp): int;
- stdcall;
-
-function deflateInit(strm: z_streamp; level: int): int;
-function deflateInit2(strm: z_streamp; level, method, windowBits,
- memLevel, strategy: int): int;
-function inflateInit(strm: z_streamp): int;
-function inflateInit2(strm: z_streamp; windowBits: int): int;
-
-implementation
-
-function deflateInit(strm: z_streamp; level: int): int;
-begin
- Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function deflateInit2(strm: z_streamp; level, method, windowBits,
- memLevel, strategy: int): int;
-begin
- Result := deflateInit2_(strm, level, method, windowBits, memLevel,
- strategy, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit(strm: z_streamp): int;
-begin
- Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit2(strm: z_streamp; windowBits: int): int;
-begin
- Result := inflateInit2_(strm, windowBits, ZLIB_VERSION,
- sizeof(z_stream));
-end;
-
-const
- zlibDLL = 'png32bd.dll';
-
-function adler32; external zlibDLL;
-function crc32; external zlibDLL;
-function deflate; external zlibDLL;
-function deflateCopy; external zlibDLL;
-function deflateEnd; external zlibDLL;
-function deflateInit2_; external zlibDLL;
-function deflateInit_; external zlibDLL;
-function deflateParams; external zlibDLL;
-function deflateReset; external zlibDLL;
-function deflateSetDictionary; external zlibDLL;
-function inflate; external zlibDLL;
-function inflateEnd; external zlibDLL;
-function inflateInit2_; external zlibDLL;
-function inflateInit_; external zlibDLL;
-function inflateReset; external zlibDLL;
-function inflateSetDictionary; external zlibDLL;
-function inflateSync; external zlibDLL;
-
-end.
+++ /dev/null
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = d_zlib.lib
-OBJFILES = d_zlib.obj adler32.obj deflate.obj infblock.obj infcodes.obj inffast.obj \
- inflate.obj inftrees.obj infutil.obj trees.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES = VCL35.lib
-SPARELIBS = VCL35.lib
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
- dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
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-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
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-PATHRC = .;
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-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -O2 -Ve -d -k- -vi
-CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm
-CFLAG3 = -ff -pr -5
-PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M
-RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl
-AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn
-LFLAGS =
-IFLAGS = -g -Gn
-# ---------------------------------------------------------------------------
-ALLOBJ = c0w32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib
-# ---------------------------------------------------------------------------
-!!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
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-Release=0
-Build=0
-Debug=0
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-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
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-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include
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-
-[HistoryLists\hlLibraryPath]
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-
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-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
- ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE. It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = TLib
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
-!if $d(PATHCPP)
-.PATH.CPP = $(PATHCPP)
-.PATH.C = $(PATHCPP)
-!endif
-
-!if $d(PATHPAS)
-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
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-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
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-FileDescription=
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-InternalName=
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-LegalTrademarks=
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-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include;$(BCB)\include\vcl
-Item1=$(BCB)\include
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-
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-
-[Parameters]
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-
-!endif
-
-$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE)
- $(BCB)\BIN\$(LINKER) @&&!
- $(LFLAGS) $(IFLAGS) +
- $(ALLOBJ), +
- $(PROJECT),, +
- $(ALLLIB), +
- $(DEFFILE), +
- $(ALLRES)
-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
- $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.pas.obj:
- $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.cpp.obj:
- $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.c.obj:
- $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.asm.obj:
- $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
- $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------
+++ /dev/null
-#include <condefs.h>
-#pragma hdrstop
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("deflate.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
-USEUNIT("trees.c");
-//---------------------------------------------------------------------------
-#define Library
-
-// To add a file to the library use the Project menu 'Add to Project'.
-
+++ /dev/null
-These are files used to compile zlib under Borland C++ Builder 3.
-
-zlib.bpg is the main project group that can be loaded in the BCB IDE and
-loads all other *.bpr projects
-
-zlib.bpr is a project used to create a static zlib.lib library with C calling
-convention for functions.
-
-zlib32.bpr creates a zlib32.dll dynamic link library with Windows standard
-calling convention.
-
-d_zlib.bpr creates a set of .obj files with register calling convention.
-These files are used by zlib.pas to create a Delphi unit containing zlib.
-The d_zlib.lib file generated isn't useful and can be deleted.
-
-zlib.cpp, zlib32.cpp and d_zlib.cpp are used by the above projects.
-
+++ /dev/null
-#------------------------------------------------------------------------------
-VERSION = BWS.01
-#------------------------------------------------------------------------------
-!ifndef ROOT
-ROOT = $(MAKEDIR)\..
-!endif
-#------------------------------------------------------------------------------
-MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
-DCC = $(ROOT)\bin\dcc32.exe $**
-BRCC = $(ROOT)\bin\brcc32.exe $**
-#------------------------------------------------------------------------------
-PROJECTS = zlib zlib32 d_zlib
-#------------------------------------------------------------------------------
-default: $(PROJECTS)
-#------------------------------------------------------------------------------
-
-zlib: zlib.bpr
- $(MAKE)
-
-zlib32: zlib32.bpr
- $(MAKE)
-
-d_zlib: d_zlib.bpr
- $(MAKE)
-
-
+++ /dev/null
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = zlib.lib
-OBJFILES = zlib.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \
- infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \
- uncompr.obj zutil.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES = VCL35.lib
-SPARELIBS = VCL35.lib
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
- dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
- NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi
-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
-PATHPAS = .;
-PATHRC = .;
-DEBUGLIBPATH = $(BCB)\lib\debug
-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -O2 -Ve -d -k- -vi
-CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm
-CFLAG3 = -ff -5
-PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M
-RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl
-AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn
-LFLAGS =
-IFLAGS = -g -Gn
-# ---------------------------------------------------------------------------
-ALLOBJ = c0w32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib
-# ---------------------------------------------------------------------------
-!!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=2
-Item0=$(BCB)\include
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-[HistoryLists\hlLibraryPath]
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-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
- ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE. It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = TLib
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
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-.PATH.CPP = $(PATHCPP)
-.PATH.C = $(PATHCPP)
-!endif
-
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-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
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-[HistoryLists\hlIncludePath]
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-[Parameters]
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-
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- $(BCB)\BIN\$(LINKER) @&&!
- $(LFLAGS) $(IFLAGS) +
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-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
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-
-.pas.obj:
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-.cpp.obj:
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-.c.obj:
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-
-.asm.obj:
- $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
- $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------
+++ /dev/null
-#include <condefs.h>
-#pragma hdrstop
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("compress.c");
-USEUNIT("crc32.c");
-USEUNIT("deflate.c");
-USEUNIT("gzio.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
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-USEUNIT("uncompr.c");
-USEUNIT("zutil.c");
-//---------------------------------------------------------------------------
-#define Library
-
-// To add a file to the library use the Project menu 'Add to Project'.
-
+++ /dev/null
-{*******************************************************}
-{ }
-{ Delphi Supplemental Components }
-{ ZLIB Data Compression Interface Unit }
-{ }
-{ Copyright (c) 1997 Borland International }
-{ }
-{*******************************************************}
-
-{ Modified for zlib 1.1.3 by Davide Moretti <dave@rimini.com }
-
-unit zlib;
-
-interface
-
-uses Sysutils, Classes;
-
-type
- TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer;
- TFree = procedure (AppData, Block: Pointer);
-
- // Internal structure. Ignore.
- TZStreamRec = packed record
- next_in: PChar; // next input byte
- avail_in: Integer; // number of bytes available at next_in
- total_in: Integer; // total nb of input bytes read so far
-
- next_out: PChar; // next output byte should be put here
- avail_out: Integer; // remaining free space at next_out
- total_out: Integer; // total nb of bytes output so far
-
- msg: PChar; // last error message, NULL if no error
- internal: Pointer; // not visible by applications
-
- zalloc: TAlloc; // used to allocate the internal state
- zfree: TFree; // used to free the internal state
- AppData: Pointer; // private data object passed to zalloc and zfree
-
- data_type: Integer; // best guess about the data type: ascii or binary
- adler: Integer; // adler32 value of the uncompressed data
- reserved: Integer; // reserved for future use
- end;
-
- // Abstract ancestor class
- TCustomZlibStream = class(TStream)
- private
- FStrm: TStream;
- FStrmPos: Integer;
- FOnProgress: TNotifyEvent;
- FZRec: TZStreamRec;
- FBuffer: array [Word] of Char;
- protected
- procedure Progress(Sender: TObject); dynamic;
- property OnProgress: TNotifyEvent read FOnProgress write FOnProgress;
- constructor Create(Strm: TStream);
- end;
-
-{ TCompressionStream compresses data on the fly as data is written to it, and
- stores the compressed data to another stream.
-
- TCompressionStream is write-only and strictly sequential. Reading from the
- stream will raise an exception. Using Seek to move the stream pointer
- will raise an exception.
-
- Output data is cached internally, written to the output stream only when
- the internal output buffer is full. All pending output data is flushed
- when the stream is destroyed.
-
- The Position property returns the number of uncompressed bytes of
- data that have been written to the stream so far.
-
- CompressionRate returns the on-the-fly percentage by which the original
- data has been compressed: (1 - (CompressedBytes / UncompressedBytes)) * 100
- If raw data size = 100 and compressed data size = 25, the CompressionRate
- is 75%
-
- The OnProgress event is called each time the output buffer is filled and
- written to the output stream. This is useful for updating a progress
- indicator when you are writing a large chunk of data to the compression
- stream in a single call.}
-
-
- TCompressionLevel = (clNone, clFastest, clDefault, clMax);
-
- TCompressionStream = class(TCustomZlibStream)
- private
- function GetCompressionRate: Single;
- public
- constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream);
- destructor Destroy; override;
- function Read(var Buffer; Count: Longint): Longint; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- function Seek(Offset: Longint; Origin: Word): Longint; override;
- property CompressionRate: Single read GetCompressionRate;
- property OnProgress;
- end;
-
-{ TDecompressionStream decompresses data on the fly as data is read from it.
-
- Compressed data comes from a separate source stream. TDecompressionStream
- is read-only and unidirectional; you can seek forward in the stream, but not
- backwards. The special case of setting the stream position to zero is
- allowed. Seeking forward decompresses data until the requested position in
- the uncompressed data has been reached. Seeking backwards, seeking relative
- to the end of the stream, requesting the size of the stream, and writing to
- the stream will raise an exception.
-
- The Position property returns the number of bytes of uncompressed data that
- have been read from the stream so far.
-
- The OnProgress event is called each time the internal input buffer of
- compressed data is exhausted and the next block is read from the input stream.
- This is useful for updating a progress indicator when you are reading a
- large chunk of data from the decompression stream in a single call.}
-
- TDecompressionStream = class(TCustomZlibStream)
- public
- constructor Create(Source: TStream);
- destructor Destroy; override;
- function Read(var Buffer; Count: Longint): Longint; override;
- function Write(const Buffer; Count: Longint): Longint; override;
- function Seek(Offset: Longint; Origin: Word): Longint; override;
- property OnProgress;
- end;
-
-
-
-{ CompressBuf compresses data, buffer to buffer, in one call.
- In: InBuf = ptr to compressed data
- InBytes = number of bytes in InBuf
- Out: OutBuf = ptr to newly allocated buffer containing decompressed data
- OutBytes = number of bytes in OutBuf }
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
- out OutBuf: Pointer; out OutBytes: Integer);
-
-
-{ DecompressBuf decompresses data, buffer to buffer, in one call.
- In: InBuf = ptr to compressed data
- InBytes = number of bytes in InBuf
- OutEstimate = zero, or est. size of the decompressed data
- Out: OutBuf = ptr to newly allocated buffer containing decompressed data
- OutBytes = number of bytes in OutBuf }
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
- OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-
-const
- zlib_version = '1.1.3';
-
-type
- EZlibError = class(Exception);
- ECompressionError = class(EZlibError);
- EDecompressionError = class(EZlibError);
-
-function adler32(adler: Integer; buf: PChar; len: Integer): Integer;
-
-implementation
-
-const
- Z_NO_FLUSH = 0;
- Z_PARTIAL_FLUSH = 1;
- Z_SYNC_FLUSH = 2;
- Z_FULL_FLUSH = 3;
- Z_FINISH = 4;
-
- Z_OK = 0;
- Z_STREAM_END = 1;
- Z_NEED_DICT = 2;
- Z_ERRNO = (-1);
- Z_STREAM_ERROR = (-2);
- Z_DATA_ERROR = (-3);
- Z_MEM_ERROR = (-4);
- Z_BUF_ERROR = (-5);
- Z_VERSION_ERROR = (-6);
-
- Z_NO_COMPRESSION = 0;
- Z_BEST_SPEED = 1;
- Z_BEST_COMPRESSION = 9;
- Z_DEFAULT_COMPRESSION = (-1);
-
- Z_FILTERED = 1;
- Z_HUFFMAN_ONLY = 2;
- Z_DEFAULT_STRATEGY = 0;
-
- Z_BINARY = 0;
- Z_ASCII = 1;
- Z_UNKNOWN = 2;
-
- Z_DEFLATED = 8;
-
- _z_errmsg: array[0..9] of PChar = (
- 'need dictionary', // Z_NEED_DICT (2)
- 'stream end', // Z_STREAM_END (1)
- '', // Z_OK (0)
- 'file error', // Z_ERRNO (-1)
- 'stream error', // Z_STREAM_ERROR (-2)
- 'data error', // Z_DATA_ERROR (-3)
- 'insufficient memory', // Z_MEM_ERROR (-4)
- 'buffer error', // Z_BUF_ERROR (-5)
- 'incompatible version', // Z_VERSION_ERROR (-6)
- ''
- );
-
-{$L deflate.obj}
-{$L inflate.obj}
-{$L inftrees.obj}
-{$L trees.obj}
-{$L adler32.obj}
-{$L infblock.obj}
-{$L infcodes.obj}
-{$L infutil.obj}
-{$L inffast.obj}
-
-procedure _tr_init; external;
-procedure _tr_tally; external;
-procedure _tr_flush_block; external;
-procedure _tr_align; external;
-procedure _tr_stored_block; external;
-function adler32; external;
-procedure inflate_blocks_new; external;
-procedure inflate_blocks; external;
-procedure inflate_blocks_reset; external;
-procedure inflate_blocks_free; external;
-procedure inflate_set_dictionary; external;
-procedure inflate_trees_bits; external;
-procedure inflate_trees_dynamic; external;
-procedure inflate_trees_fixed; external;
-procedure inflate_codes_new; external;
-procedure inflate_codes; external;
-procedure inflate_codes_free; external;
-procedure _inflate_mask; external;
-procedure inflate_flush; external;
-procedure inflate_fast; external;
-
-procedure _memset(P: Pointer; B: Byte; count: Integer);cdecl;
-begin
- FillChar(P^, count, B);
-end;
-
-procedure _memcpy(dest, source: Pointer; count: Integer);cdecl;
-begin
- Move(source^, dest^, count);
-end;
-
-
-
-// deflate compresses data
-function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar;
- recsize: Integer): Integer; external;
-function deflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function deflateEnd(var strm: TZStreamRec): Integer; external;
-
-// inflate decompresses data
-function inflateInit_(var strm: TZStreamRec; version: PChar;
- recsize: Integer): Integer; external;
-function inflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function inflateEnd(var strm: TZStreamRec): Integer; external;
-function inflateReset(var strm: TZStreamRec): Integer; external;
-
-
-function zcalloc(AppData: Pointer; Items, Size: Integer): Pointer;
-begin
- GetMem(Result, Items*Size);
-end;
-
-procedure zcfree(AppData, Block: Pointer);
-begin
- FreeMem(Block);
-end;
-
-function zlibCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise EZlibError.Create('error'); //!!
-end;
-
-function CCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise ECompressionError.Create('error'); //!!
-end;
-
-function DCheck(code: Integer): Integer;
-begin
- Result := code;
- if code < 0 then
- raise EDecompressionError.Create('error'); //!!
-end;
-
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
- out OutBuf: Pointer; out OutBytes: Integer);
-var
- strm: TZStreamRec;
- P: Pointer;
-begin
- FillChar(strm, sizeof(strm), 0);
- OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
- GetMem(OutBuf, OutBytes);
- try
- strm.next_in := InBuf;
- strm.avail_in := InBytes;
- strm.next_out := OutBuf;
- strm.avail_out := OutBytes;
- CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm)));
- try
- while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do
- begin
- P := OutBuf;
- Inc(OutBytes, 256);
- ReallocMem(OutBuf, OutBytes);
- strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
- strm.avail_out := 256;
- end;
- finally
- CCheck(deflateEnd(strm));
- end;
- ReallocMem(OutBuf, strm.total_out);
- OutBytes := strm.total_out;
- except
- FreeMem(OutBuf);
- raise
- end;
-end;
-
-
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
- OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-var
- strm: TZStreamRec;
- P: Pointer;
- BufInc: Integer;
-begin
- FillChar(strm, sizeof(strm), 0);
- BufInc := (InBytes + 255) and not 255;
- if OutEstimate = 0 then
- OutBytes := BufInc
- else
- OutBytes := OutEstimate;
- GetMem(OutBuf, OutBytes);
- try
- strm.next_in := InBuf;
- strm.avail_in := InBytes;
- strm.next_out := OutBuf;
- strm.avail_out := OutBytes;
- DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
- try
- while DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END do
- begin
- P := OutBuf;
- Inc(OutBytes, BufInc);
- ReallocMem(OutBuf, OutBytes);
- strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
- strm.avail_out := BufInc;
- end;
- finally
- DCheck(inflateEnd(strm));
- end;
- ReallocMem(OutBuf, strm.total_out);
- OutBytes := strm.total_out;
- except
- FreeMem(OutBuf);
- raise
- end;
-end;
-
-
-// TCustomZlibStream
-
-constructor TCustomZLibStream.Create(Strm: TStream);
-begin
- inherited Create;
- FStrm := Strm;
- FStrmPos := Strm.Position;
-end;
-
-procedure TCustomZLibStream.Progress(Sender: TObject);
-begin
- if Assigned(FOnProgress) then FOnProgress(Sender);
-end;
-
-
-// TCompressionStream
-
-constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel;
- Dest: TStream);
-const
- Levels: array [TCompressionLevel] of ShortInt =
- (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION);
-begin
- inherited Create(Dest);
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec)));
-end;
-
-destructor TCompressionStream.Destroy;
-begin
- FZRec.next_in := nil;
- FZRec.avail_in := 0;
- try
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END)
- and (FZRec.avail_out = 0) do
- begin
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- end;
- if FZRec.avail_out < sizeof(FBuffer) then
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out);
- finally
- deflateEnd(FZRec);
- end;
- inherited Destroy;
-end;
-
-function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
- raise ECompressionError.Create('Invalid stream operation');
-end;
-
-function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
- FZRec.next_in := @Buffer;
- FZRec.avail_in := Count;
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (FZRec.avail_in > 0) do
- begin
- CCheck(deflate(FZRec, 0));
- if FZRec.avail_out = 0 then
- begin
- FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
- FZRec.next_out := FBuffer;
- FZRec.avail_out := sizeof(FBuffer);
- FStrmPos := FStrm.Position;
- Progress(Self);
- end;
- end;
- Result := Count;
-end;
-
-function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-begin
- if (Offset = 0) and (Origin = soFromCurrent) then
- Result := FZRec.total_in
- else
- raise ECompressionError.Create('Invalid stream operation');
-end;
-
-function TCompressionStream.GetCompressionRate: Single;
-begin
- if FZRec.total_in = 0 then
- Result := 0
- else
- Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0;
-end;
-
-
-// TDecompressionStream
-
-constructor TDecompressionStream.Create(Source: TStream);
-begin
- inherited Create(Source);
- FZRec.next_in := FBuffer;
- FZRec.avail_in := 0;
- DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec)));
-end;
-
-destructor TDecompressionStream.Destroy;
-begin
- inflateEnd(FZRec);
- inherited Destroy;
-end;
-
-function TDecompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
- FZRec.next_out := @Buffer;
- FZRec.avail_out := Count;
- if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
- while (FZRec.avail_out > 0) do
- begin
- if FZRec.avail_in = 0 then
- begin
- FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer));
- if FZRec.avail_in = 0 then
- begin
- Result := Count - FZRec.avail_out;
- Exit;
- end;
- FZRec.next_in := FBuffer;
- FStrmPos := FStrm.Position;
- Progress(Self);
- end;
- DCheck(inflate(FZRec, 0));
- end;
- Result := Count;
-end;
-
-function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
- raise EDecompressionError.Create('Invalid stream operation');
-end;
-
-function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-var
- I: Integer;
- Buf: array [0..4095] of Char;
-begin
- if (Offset = 0) and (Origin = soFromBeginning) then
- begin
- DCheck(inflateReset(FZRec));
- FZRec.next_in := FBuffer;
- FZRec.avail_in := 0;
- FStrm.Position := 0;
- FStrmPos := 0;
- end
- else if ( (Offset >= 0) and (Origin = soFromCurrent)) or
- ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then
- begin
- if Origin = soFromBeginning then Dec(Offset, FZRec.total_out);
- if Offset > 0 then
- begin
- for I := 1 to Offset div sizeof(Buf) do
- ReadBuffer(Buf, sizeof(Buf));
- ReadBuffer(Buf, Offset mod sizeof(Buf));
- end;
- end
- else
- raise EDecompressionError.Create('Invalid stream operation');
- Result := FZRec.total_out;
-end;
-
-end.
+++ /dev/null
-# ---------------------------------------------------------------------------
-!if !$d(BCB)
-BCB = $(MAKEDIR)\..
-!endif
-
-# ---------------------------------------------------------------------------
-# IDE SECTION
-# ---------------------------------------------------------------------------
-# The following section of the project makefile is managed by the BCB IDE.
-# It is recommended to use the IDE to change any of the values in this
-# section.
-# ---------------------------------------------------------------------------
-
-VERSION = BCB.03
-# ---------------------------------------------------------------------------
-PROJECT = zlib32.dll
-OBJFILES = zlib32.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \
- infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \
- uncompr.obj zutil.obj
-RESFILES =
-RESDEPEN = $(RESFILES)
-LIBFILES =
-LIBRARIES =
-SPARELIBS =
-DEFFILE =
-PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \
- dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \
- NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi
-# ---------------------------------------------------------------------------
-PATHCPP = .;
-PATHASM = .;
-PATHPAS = .;
-PATHRC = .;
-DEBUGLIBPATH = $(BCB)\lib\debug
-RELEASELIBPATH = $(BCB)\lib\release
-# ---------------------------------------------------------------------------
-CFLAG1 = -WD -O2 -Ve -d -k- -vi -c -tWD
-CFLAG2 = -D_NO_VCL;ZLIB_DLL -I$(BCB)\include
-CFLAG3 = -ff -5
-PFLAGS = -D_NO_VCL;ZLIB_DLL -U$(BCB)\lib;$(RELEASELIBPATH) -I$(BCB)\include -$I- -v \
- -JPHN -M
-RFLAGS = -D_NO_VCL;ZLIB_DLL -i$(BCB)\include
-AFLAGS = /i$(BCB)\include /d_NO_VCL /dZLIB_DLL /mx /w2 /zn
-LFLAGS = -L$(BCB)\lib;$(RELEASELIBPATH) -aa -Tpd -x -Gi
-IFLAGS = -Gn -g
-# ---------------------------------------------------------------------------
-ALLOBJ = c0d32.obj $(OBJFILES)
-ALLRES = $(RESFILES)
-ALLLIB = $(LIBFILES) import32.lib cw32mt.lib
-# ---------------------------------------------------------------------------
-!ifdef IDEOPTIONS
-
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=1
-Locale=1040
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=DLL (GUI)
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=1
-Item0=$(BCB)\include
-
-[HistoryLists\hlLibraryPath]
-Count=1
-Item0=$(BCB)\lib
-
-[HistoryLists\hlConditionals]
-Count=1
-Item0=_NO_VCL;ZLIB_DLL
-
-[Debugging]
-DebugSourceDirs=
-
-[Parameters]
-RunParams=
-HostApplication=
-
-!endif
-
-# ---------------------------------------------------------------------------
-# MAKE SECTION
-# ---------------------------------------------------------------------------
-# This section of the project file is not used by the BCB IDE. It is for
-# the benefit of building from the command-line using the MAKE utility.
-# ---------------------------------------------------------------------------
-
-.autodepend
-# ---------------------------------------------------------------------------
-!if !$d(BCC32)
-BCC32 = bcc32
-!endif
-
-!if !$d(DCC32)
-DCC32 = dcc32
-!endif
-
-!if !$d(TASM32)
-TASM32 = tasm32
-!endif
-
-!if !$d(LINKER)
-LINKER = ilink32
-!endif
-
-!if !$d(BRCC32)
-BRCC32 = brcc32
-!endif
-# ---------------------------------------------------------------------------
-!if $d(PATHCPP)
-.PATH.CPP = $(PATHCPP)
-.PATH.C = $(PATHCPP)
-!endif
-
-!if $d(PATHPAS)
-.PATH.PAS = $(PATHPAS)
-!endif
-
-!if $d(PATHASM)
-.PATH.ASM = $(PATHASM)
-!endif
-
-!if $d(PATHRC)
-.PATH.RC = $(PATHRC)
-!endif
-# ---------------------------------------------------------------------------
-$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE)
- $(BCB)\BIN\$(LINKER) @&&!
- $(LFLAGS) $(IFLAGS) +
- $(ALLOBJ), +
- $(PROJECT),, +
- $(ALLLIB), +
- $(DEFFILE), +
- $(ALLRES)
-!
-# ---------------------------------------------------------------------------
-.pas.hpp:
- $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.pas.obj:
- $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< }
-
-.cpp.obj:
- $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.c.obj:
- $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< }
-
-.asm.obj:
- $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@
-
-.rc.res:
- $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $<
-# ---------------------------------------------------------------------------
+++ /dev/null
-
-#include <windows.h>
-#pragma hdrstop
-#include <condefs.h>
-
-
-//---------------------------------------------------------------------------
-// Important note about DLL memory management in a VCL DLL:
-//
-//
-//
-// If your DLL uses VCL and exports any functions that pass VCL String objects
-// (or structs/classes containing nested Strings) as parameter or function
-// results, you will need to build both your DLL project and any EXE projects
-// that use your DLL with the dynamic RTL (the RTL DLL). This will change your
-// DLL and its calling EXE's to use BORLNDMM.DLL as their memory manager. In
-// these cases, the file BORLNDMM.DLL should be deployed along with your DLL
-// and the RTL DLL (CP3240MT.DLL). To avoid the requiring BORLNDMM.DLL in
-// these situations, pass string information using "char *" or ShortString
-// parameters and then link with the static RTL.
-//
-//---------------------------------------------------------------------------
-USEUNIT("adler32.c");
-USEUNIT("compress.c");
-USEUNIT("crc32.c");
-USEUNIT("deflate.c");
-USEUNIT("gzio.c");
-USEUNIT("infblock.c");
-USEUNIT("infcodes.c");
-USEUNIT("inffast.c");
-USEUNIT("inflate.c");
-USEUNIT("inftrees.c");
-USEUNIT("infutil.c");
-USEUNIT("trees.c");
-USEUNIT("uncompr.c");
-USEUNIT("zutil.c");
-//---------------------------------------------------------------------------
-#pragma argsused
-int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void*)
-{
- return 1;
-}
+++ /dev/null
-
-#include "zfstream.h"
-
-int main() {
-
- // Construct a stream object with this filebuffer. Anything sent
- // to this stream will go to standard out.
- gzofstream os( 1, ios::out );
-
- // This text is getting compressed and sent to stdout.
- // To prove this, run 'test | zcat'.
- os << "Hello, Mommy" << endl;
-
- os << setcompressionlevel( Z_NO_COMPRESSION );
- os << "hello, hello, hi, ho!" << endl;
-
- setcompressionlevel( os, Z_DEFAULT_COMPRESSION )
- << "I'm compressing again" << endl;
-
- os.close();
-
- return 0;
-
-}
+++ /dev/null
-
-#include <memory.h>
-#include "zfstream.h"
-
-gzfilebuf::gzfilebuf() :
- file(NULL),
- mode(0),
- own_file_descriptor(0)
-{ }
-
-gzfilebuf::~gzfilebuf() {
-
- sync();
- if ( own_file_descriptor )
- close();
-
-}
-
-gzfilebuf *gzfilebuf::open( const char *name,
- int io_mode ) {
-
- if ( is_open() )
- return NULL;
-
- char char_mode[10];
- char *p;
- memset(char_mode,'\0',10);
- p = char_mode;
-
- if ( io_mode & ios::in ) {
- mode = ios::in;
- *p++ = 'r';
- } else if ( io_mode & ios::app ) {
- mode = ios::app;
- *p++ = 'a';
- } else {
- mode = ios::out;
- *p++ = 'w';
- }
-
- if ( io_mode & ios::binary ) {
- mode |= ios::binary;
- *p++ = 'b';
- }
-
- // Hard code the compression level
- if ( io_mode & (ios::out|ios::app )) {
- *p++ = '9';
- }
-
- if ( (file = gzopen(name, char_mode)) == NULL )
- return NULL;
-
- own_file_descriptor = 1;
-
- return this;
-
-}
-
-gzfilebuf *gzfilebuf::attach( int file_descriptor,
- int io_mode ) {
-
- if ( is_open() )
- return NULL;
-
- char char_mode[10];
- char *p;
- memset(char_mode,'\0',10);
- p = char_mode;
-
- if ( io_mode & ios::in ) {
- mode = ios::in;
- *p++ = 'r';
- } else if ( io_mode & ios::app ) {
- mode = ios::app;
- *p++ = 'a';
- } else {
- mode = ios::out;
- *p++ = 'w';
- }
-
- if ( io_mode & ios::binary ) {
- mode |= ios::binary;
- *p++ = 'b';
- }
-
- // Hard code the compression level
- if ( io_mode & (ios::out|ios::app )) {
- *p++ = '9';
- }
-
- if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
- return NULL;
-
- own_file_descriptor = 0;
-
- return this;
-
-}
-
-gzfilebuf *gzfilebuf::close() {
-
- if ( is_open() ) {
-
- sync();
- gzclose( file );
- file = NULL;
-
- }
-
- return this;
-
-}
-
-int gzfilebuf::setcompressionlevel( short comp_level ) {
-
- return gzsetparams(file, comp_level, -2);
-
-}
-
-int gzfilebuf::setcompressionstrategy( short comp_strategy ) {
-
- return gzsetparams(file, -2, comp_strategy);
-
-}
-
-
-streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) {
-
- return streampos(EOF);
-
-}
-
-int gzfilebuf::underflow() {
-
- // If the file hasn't been opened for reading, error.
- if ( !is_open() || !(mode & ios::in) )
- return EOF;
-
- // if a buffer doesn't exists, allocate one.
- if ( !base() ) {
-
- if ( (allocate()) == EOF )
- return EOF;
- setp(0,0);
-
- } else {
-
- if ( in_avail() )
- return (unsigned char) *gptr();
-
- if ( out_waiting() ) {
- if ( flushbuf() == EOF )
- return EOF;
- }
-
- }
-
- // Attempt to fill the buffer.
-
- int result = fillbuf();
- if ( result == EOF ) {
- // disable get area
- setg(0,0,0);
- return EOF;
- }
-
- return (unsigned char) *gptr();
-
-}
-
-int gzfilebuf::overflow( int c ) {
-
- if ( !is_open() || !(mode & ios::out) )
- return EOF;
-
- if ( !base() ) {
- if ( allocate() == EOF )
- return EOF;
- setg(0,0,0);
- } else {
- if (in_avail()) {
- return EOF;
- }
- if (out_waiting()) {
- if (flushbuf() == EOF)
- return EOF;
- }
- }
-
- int bl = blen();
- setp( base(), base() + bl);
-
- if ( c != EOF ) {
-
- *pptr() = c;
- pbump(1);
-
- }
-
- return 0;
-
-}
-
-int gzfilebuf::sync() {
-
- if ( !is_open() )
- return EOF;
-
- if ( out_waiting() )
- return flushbuf();
-
- return 0;
-
-}
-
-int gzfilebuf::flushbuf() {
-
- int n;
- char *q;
-
- q = pbase();
- n = pptr() - q;
-
- if ( gzwrite( file, q, n) < n )
- return EOF;
-
- setp(0,0);
-
- return 0;
-
-}
-
-int gzfilebuf::fillbuf() {
-
- int required;
- char *p;
-
- p = base();
-
- required = blen();
-
- int t = gzread( file, p, required );
-
- if ( t <= 0) return EOF;
-
- setg( base(), base(), base()+t);
-
- return t;
-
-}
-
-gzfilestream_common::gzfilestream_common() :
- ios( gzfilestream_common::rdbuf() )
-{ }
-
-gzfilestream_common::~gzfilestream_common()
-{ }
-
-void gzfilestream_common::attach( int fd, int io_mode ) {
-
- if ( !buffer.attach( fd, io_mode) )
- clear( ios::failbit | ios::badbit );
- else
- clear();
-
-}
-
-void gzfilestream_common::open( const char *name, int io_mode ) {
-
- if ( !buffer.open( name, io_mode ) )
- clear( ios::failbit | ios::badbit );
- else
- clear();
-
-}
-
-void gzfilestream_common::close() {
-
- if ( !buffer.close() )
- clear( ios::failbit | ios::badbit );
-
-}
-
-gzfilebuf *gzfilestream_common::rdbuf() {
-
- return &buffer;
-
-}
-
-gzifstream::gzifstream() :
- ios( gzfilestream_common::rdbuf() )
-{
- clear( ios::badbit );
-}
-
-gzifstream::gzifstream( const char *name, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::open( name, io_mode );
-}
-
-gzifstream::gzifstream( int fd, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::attach( fd, io_mode );
-}
-
-gzifstream::~gzifstream() { }
-
-gzofstream::gzofstream() :
- ios( gzfilestream_common::rdbuf() )
-{
- clear( ios::badbit );
-}
-
-gzofstream::gzofstream( const char *name, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::open( name, io_mode );
-}
-
-gzofstream::gzofstream( int fd, int io_mode ) :
- ios( gzfilestream_common::rdbuf() )
-{
- gzfilestream_common::attach( fd, io_mode );
-}
-
-gzofstream::~gzofstream() { }
+++ /dev/null
-
-#ifndef _zfstream_h
-#define _zfstream_h
-
-#include <fstream.h>
-#include "zlib.h"
-
-class gzfilebuf : public streambuf {
-
-public:
-
- gzfilebuf( );
- virtual ~gzfilebuf();
-
- gzfilebuf *open( const char *name, int io_mode );
- gzfilebuf *attach( int file_descriptor, int io_mode );
- gzfilebuf *close();
-
- int setcompressionlevel( short comp_level );
- int setcompressionstrategy( short comp_strategy );
-
- inline int is_open() const { return (file !=NULL); }
-
- virtual streampos seekoff( streamoff, ios::seek_dir, int );
-
- virtual int sync();
-
-protected:
-
- virtual int underflow();
- virtual int overflow( int = EOF );
-
-private:
-
- gzFile file;
- short mode;
- short own_file_descriptor;
-
- int flushbuf();
- int fillbuf();
-
-};
-
-class gzfilestream_common : virtual public ios {
-
- friend class gzifstream;
- friend class gzofstream;
- friend gzofstream &setcompressionlevel( gzofstream &, int );
- friend gzofstream &setcompressionstrategy( gzofstream &, int );
-
-public:
- virtual ~gzfilestream_common();
-
- void attach( int fd, int io_mode );
- void open( const char *name, int io_mode );
- void close();
-
-protected:
- gzfilestream_common();
-
-private:
- gzfilebuf *rdbuf();
-
- gzfilebuf buffer;
-
-};
-
-class gzifstream : public gzfilestream_common, public istream {
-
-public:
-
- gzifstream();
- gzifstream( const char *name, int io_mode = ios::in );
- gzifstream( int fd, int io_mode = ios::in );
-
- virtual ~gzifstream();
-
-};
-
-class gzofstream : public gzfilestream_common, public ostream {
-
-public:
-
- gzofstream();
- gzofstream( const char *name, int io_mode = ios::out );
- gzofstream( int fd, int io_mode = ios::out );
-
- virtual ~gzofstream();
-
-};
-
-template<class T> class gzomanip {
- friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
-public:
- gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
-private:
- gzofstream &(*func)(gzofstream &, T);
- T val;
-};
-
-template<class T> gzofstream &operator<<(gzofstream &s,
- const gzomanip<T> &m) {
- return (*m.func)(s, m.val);
-
-}
-
-inline gzofstream &setcompressionlevel( gzofstream &s, int l ) {
- (s.rdbuf())->setcompressionlevel(l);
- return s;
-}
-
-inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) {
- (s.rdbuf())->setcompressionstrategy(l);
- return s;
-}
-
-inline gzomanip<int> setcompressionlevel(int l)
-{
- return gzomanip<int>(&setcompressionlevel,l);
-}
-
-inline gzomanip<int> setcompressionstrategy(int l)
-{
- return gzomanip<int>(&setcompressionstrategy,l);
-}
-
-#endif
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+++ /dev/null
-/*
- *
- * Copyright (c) 1997
- * Christian Michelsen Research AS
- * Advanced Computing
- * Fantoftvegen 38, 5036 BERGEN, Norway
- * http://www.cmr.no
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Christian Michelsen Research AS makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- */
-
-#ifndef ZSTREAM__H
-#define ZSTREAM__H
-
-/*
- * zstream.h - C++ interface to the 'zlib' general purpose compression library
- * $Id: zstream.h,v 1.1.1.1 2001/09/28 22:45:41 tholo Exp $
- */
-
-#include <strstream.h>
-#include <string.h>
-#include <stdio.h>
-#include "zlib.h"
-
-#if defined(_WIN32)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-class zstringlen {
-public:
- zstringlen(class izstream&);
- zstringlen(class ozstream&, const char*);
- size_t value() const { return val.word; }
-private:
- struct Val { unsigned char byte; size_t word; } val;
-};
-
-// ----------------------------- izstream -----------------------------
-
-class izstream
-{
- public:
- izstream() : m_fp(0) {}
- izstream(FILE* fp) : m_fp(0) { open(fp); }
- izstream(const char* name) : m_fp(0) { open(name); }
- ~izstream() { close(); }
-
- /* Opens a gzip (.gz) file for reading.
- * open() can be used to read a file which is not in gzip format;
- * in this case read() will directly read from the file without
- * decompression. errno can be checked to distinguish two error
- * cases (if errno is zero, the zlib error is Z_MEM_ERROR).
- */
- void open(const char* name) {
- if (m_fp) close();
- m_fp = ::gzopen(name, "rb");
- }
-
- void open(FILE* fp) {
- SET_BINARY_MODE(fp);
- if (m_fp) close();
- m_fp = ::gzdopen(fileno(fp), "rb");
- }
-
- /* Flushes all pending input if necessary, closes the compressed file
- * and deallocates all the (de)compression state. The return value is
- * the zlib error number (see function error() below).
- */
- int close() {
- int r = ::gzclose(m_fp);
- m_fp = 0; return r;
- }
-
- /* Binary read the given number of bytes from the compressed file.
- */
- int read(void* buf, size_t len) {
- return ::gzread(m_fp, buf, len);
- }
-
- /* Returns the error message for the last error which occurred on the
- * given compressed file. errnum is set to zlib error number. If an
- * error occurred in the file system and not in the compression library,
- * errnum is set to Z_ERRNO and the application may consult errno
- * to get the exact error code.
- */
- const char* error(int* errnum) {
- return ::gzerror(m_fp, errnum);
- }
-
- gzFile fp() { return m_fp; }
-
- private:
- gzFile m_fp;
-};
-
-/*
- * Binary read the given (array of) object(s) from the compressed file.
- * If the input file was not in gzip format, read() copies the objects number
- * of bytes into the buffer.
- * returns the number of uncompressed bytes actually read
- * (0 for end of file, -1 for error).
- */
-template <class T, class Items>
-inline int read(izstream& zs, T* x, Items items) {
- return ::gzread(zs.fp(), x, items*sizeof(T));
-}
-
-/*
- * Binary input with the '>' operator.
- */
-template <class T>
-inline izstream& operator>(izstream& zs, T& x) {
- ::gzread(zs.fp(), &x, sizeof(T));
- return zs;
-}
-
-
-inline zstringlen::zstringlen(izstream& zs) {
- zs > val.byte;
- if (val.byte == 255) zs > val.word;
- else val.word = val.byte;
-}
-
-/*
- * Read length of string + the string with the '>' operator.
- */
-inline izstream& operator>(izstream& zs, char* x) {
- zstringlen len(zs);
- ::gzread(zs.fp(), x, len.value());
- x[len.value()] = '\0';
- return zs;
-}
-
-inline char* read_string(izstream& zs) {
- zstringlen len(zs);
- char* x = new char[len.value()+1];
- ::gzread(zs.fp(), x, len.value());
- x[len.value()] = '\0';
- return x;
-}
-
-// ----------------------------- ozstream -----------------------------
-
-class ozstream
-{
- public:
- ozstream() : m_fp(0), m_os(0) {
- }
- ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION)
- : m_fp(0), m_os(0) {
- open(fp, level);
- }
- ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION)
- : m_fp(0), m_os(0) {
- open(name, level);
- }
- ~ozstream() {
- close();
- }
-
- /* Opens a gzip (.gz) file for writing.
- * The compression level parameter should be in 0..9
- * errno can be checked to distinguish two error cases
- * (if errno is zero, the zlib error is Z_MEM_ERROR).
- */
- void open(const char* name, int level = Z_DEFAULT_COMPRESSION) {
- char mode[4] = "wb\0";
- if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
- if (m_fp) close();
- m_fp = ::gzopen(name, mode);
- }
-
- /* open from a FILE pointer.
- */
- void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) {
- SET_BINARY_MODE(fp);
- char mode[4] = "wb\0";
- if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
- if (m_fp) close();
- m_fp = ::gzdopen(fileno(fp), mode);
- }
-
- /* Flushes all pending output if necessary, closes the compressed file
- * and deallocates all the (de)compression state. The return value is
- * the zlib error number (see function error() below).
- */
- int close() {
- if (m_os) {
- ::gzwrite(m_fp, m_os->str(), m_os->pcount());
- delete[] m_os->str(); delete m_os; m_os = 0;
- }
- int r = ::gzclose(m_fp); m_fp = 0; return r;
- }
-
- /* Binary write the given number of bytes into the compressed file.
- */
- int write(const void* buf, size_t len) {
- return ::gzwrite(m_fp, (voidp) buf, len);
- }
-
- /* Flushes all pending output into the compressed file. The parameter
- * _flush is as in the deflate() function. The return value is the zlib
- * error number (see function gzerror below). flush() returns Z_OK if
- * the flush_ parameter is Z_FINISH and all output could be flushed.
- * flush() should be called only when strictly necessary because it can
- * degrade compression.
- */
- int flush(int _flush) {
- os_flush();
- return ::gzflush(m_fp, _flush);
- }
-
- /* Returns the error message for the last error which occurred on the
- * given compressed file. errnum is set to zlib error number. If an
- * error occurred in the file system and not in the compression library,
- * errnum is set to Z_ERRNO and the application may consult errno
- * to get the exact error code.
- */
- const char* error(int* errnum) {
- return ::gzerror(m_fp, errnum);
- }
-
- gzFile fp() { return m_fp; }
-
- ostream& os() {
- if (m_os == 0) m_os = new ostrstream;
- return *m_os;
- }
-
- void os_flush() {
- if (m_os && m_os->pcount()>0) {
- ostrstream* oss = new ostrstream;
- oss->fill(m_os->fill());
- oss->flags(m_os->flags());
- oss->precision(m_os->precision());
- oss->width(m_os->width());
- ::gzwrite(m_fp, m_os->str(), m_os->pcount());
- delete[] m_os->str(); delete m_os; m_os = oss;
- }
- }
-
- private:
- gzFile m_fp;
- ostrstream* m_os;
-};
-
-/*
- * Binary write the given (array of) object(s) into the compressed file.
- * returns the number of uncompressed bytes actually written
- * (0 in case of error).
- */
-template <class T, class Items>
-inline int write(ozstream& zs, const T* x, Items items) {
- return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T));
-}
-
-/*
- * Binary output with the '<' operator.
- */
-template <class T>
-inline ozstream& operator<(ozstream& zs, const T& x) {
- ::gzwrite(zs.fp(), (voidp) &x, sizeof(T));
- return zs;
-}
-
-inline zstringlen::zstringlen(ozstream& zs, const char* x) {
- val.byte = 255; val.word = ::strlen(x);
- if (val.word < 255) zs < (val.byte = val.word);
- else zs < val;
-}
-
-/*
- * Write length of string + the string with the '<' operator.
- */
-inline ozstream& operator<(ozstream& zs, const char* x) {
- zstringlen len(zs, x);
- ::gzwrite(zs.fp(), (voidp) x, len.value());
- return zs;
-}
-
-#ifdef _MSC_VER
-inline ozstream& operator<(ozstream& zs, char* const& x) {
- return zs < (const char*) x;
-}
-#endif
-
-/*
- * Ascii write with the << operator;
- */
-template <class T>
-inline ostream& operator<<(ozstream& zs, const T& x) {
- zs.os_flush();
- return zs.os() << x;
-}
-
-#endif
+++ /dev/null
-#include "zstream.h"
-#include <math.h>
-#include <stdlib.h>
-#include <iomanip.h>
-
-void main() {
- char h[256] = "Hello";
- char* g = "Goodbye";
- ozstream out("temp.gz");
- out < "This works well" < h < g;
- out.close();
-
- izstream in("temp.gz"); // read it back
- char *x = read_string(in), *y = new char[256], z[256];
- in > y > z;
- in.close();
- cout << x << endl << y << endl << z << endl;
-
- out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results
- out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl;
- out << z << endl << y << endl << x << endl;
- out << 1.1234567890123456789 << endl;
-
- delete[] x; delete[] y;
-}
+++ /dev/null
-Change in 0.15: (19 Mar 98)
-- fix memory leak in minizip.c
-
-Change in 0.14: (10 Mar 98)
-- fix bugs in minizip.c sample for zipping big file
-- fix problem in month in date handling
-- fix bug in unzlocal_GetCurrentFileInfoInternal in unzip.c for
- comment handling
-
-Change in 0.13: (6 Mar 98)
-- fix bugs in zip.c
-- add real minizip sample
-
-Change in 0.12: (4 Mar 98)
-- add zip.c and zip.h for creates .zip file
-- fix change_file_date in miniunz.c for Unix (Jean-loup Gailly)
-- fix miniunz.c for file without specific record for directory
-
-Change in 0.11: (3 Mar 98)
-- fix bug in unzGetCurrentFileInfo for get extra field and comment
-- enhance miniunz sample, remove the bad unztst.c sample
-
-Change in 0.10: (2 Mar 98)
-- fix bug in unzReadCurrentFile
-- rename unzip* to unz* function and structure
-- remove Windows-like hungary notation variable name
-- modify some structure in unzip.h
-- add somes comment in source
-- remove unzipGetcCurrentFile function
-- replace ZUNZEXPORT by ZEXPORT
-- add unzGetLocalExtrafield for get the local extrafield info
-- add a new sample, miniunz.c
-
-Change in 0.4: (25 Feb 98)
-- suppress the type unzipFileInZip.
- Only on file in the zipfile can be open at the same time
-- fix somes typo in code
-- added tm_unz structure in unzip_file_info (date/time in readable format)
+++ /dev/null
-CC=cc
-CFLAGS=-O -I../..
-
-UNZ_OBJS = miniunz.o unzip.o ../../libz.a
-ZIP_OBJS = minizip.o zip.o ../../libz.a
-
-.c.o:
- $(CC) -c $(CFLAGS) $*.c
-
-all: miniunz minizip
-
-miniunz: $(UNZ_OBJS)
- $(CC) $(CFLAGS) -o $@ $(UNZ_OBJS)
-
-minizip: $(ZIP_OBJS)
- $(CC) $(CFLAGS) -o $@ $(ZIP_OBJS)
-
-test: miniunz minizip
- ./minizip test readme.txt
- ./miniunz -l test.zip
- mv readme.txt readme.old
- ./miniunz test.zip
-
-clean:
- /bin/rm -f *.o *~ minizip miniunz
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#ifdef unix
-# include <unistd.h>
-# include <utime.h>
-#else
-# include <direct.h>
-# include <io.h>
-#endif
-
-#include "unzip.h"
-
-#define CASESENSITIVITY (0)
-#define WRITEBUFFERSIZE (8192)
-
-/*
- mini unzip, demo of unzip package
-
- usage :
- Usage : miniunz [-exvlo] file.zip [file_to_extract]
-
- list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
- if it exists
-*/
-
-
-/* change_file_date : change the date/time of a file
- filename : the filename of the file where date/time must be modified
- dosdate : the new date at the MSDos format (4 bytes)
- tmu_date : the SAME new date at the tm_unz format */
-void change_file_date(filename,dosdate,tmu_date)
- const char *filename;
- uLong dosdate;
- tm_unz tmu_date;
-{
-#ifdef WIN32
- HANDLE hFile;
- FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
-
- hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE,
- 0,NULL,OPEN_EXISTING,0,NULL);
- GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
- DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
- LocalFileTimeToFileTime(&ftLocal,&ftm);
- SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
- CloseHandle(hFile);
-#else
-#ifdef unix
- struct utimbuf ut;
- struct tm newdate;
- newdate.tm_sec = tmu_date.tm_sec;
- newdate.tm_min=tmu_date.tm_min;
- newdate.tm_hour=tmu_date.tm_hour;
- newdate.tm_mday=tmu_date.tm_mday;
- newdate.tm_mon=tmu_date.tm_mon;
- if (tmu_date.tm_year > 1900)
- newdate.tm_year=tmu_date.tm_year - 1900;
- else
- newdate.tm_year=tmu_date.tm_year ;
- newdate.tm_isdst=-1;
-
- ut.actime=ut.modtime=mktime(&newdate);
- utime(filename,&ut);
-#endif
-#endif
-}
-
-
-/* mymkdir and change_file_date are not 100 % portable
- As I don't know well Unix, I wait feedback for the unix portion */
-
-int mymkdir(dirname)
- const char* dirname;
-{
- int ret=0;
-#ifdef WIN32
- ret = mkdir(dirname);
-#else
-#ifdef unix
- ret = mkdir (dirname,0775);
-#endif
-#endif
- return ret;
-}
-
-int makedir (newdir)
- char *newdir;
-{
- char *buffer ;
- char *p;
- int len = strlen(newdir);
-
- if (len <= 0)
- return 0;
-
- buffer = (char*)malloc(len+1);
- strcpy(buffer,newdir);
-
- if (buffer[len-1] == '/') {
- buffer[len-1] = '\0';
- }
- if (mymkdir(buffer) == 0)
- {
- free(buffer);
- return 1;
- }
-
- p = buffer+1;
- while (1)
- {
- char hold;
-
- while(*p && *p != '\\' && *p != '/')
- p++;
- hold = *p;
- *p = 0;
- if ((mymkdir(buffer) == -1) && (errno == ENOENT))
- {
- printf("couldn't create directory %s\n",buffer);
- free(buffer);
- return 0;
- }
- if (hold == 0)
- break;
- *p++ = hold;
- }
- free(buffer);
- return 1;
-}
-
-void do_banner()
-{
- printf("MiniUnz 0.15, demo of zLib + Unz package written by Gilles Vollant\n");
- printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n");
-}
-
-void do_help()
-{
- printf("Usage : miniunz [-exvlo] file.zip [file_to_extract]\n\n") ;
-}
-
-
-int do_list(uf)
- unzFile uf;
-{
- uLong i;
- unz_global_info gi;
- int err;
-
- err = unzGetGlobalInfo (uf,&gi);
- if (err!=UNZ_OK)
- printf("error %d with zipfile in unzGetGlobalInfo \n",err);
- printf(" Length Method Size Ratio Date Time CRC-32 Name\n");
- printf(" ------ ------ ---- ----- ---- ---- ------ ----\n");
- for (i=0;i<gi.number_entry;i++)
- {
- char filename_inzip[256];
- unz_file_info file_info;
- uLong ratio=0;
- const char *string_method;
- err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
- break;
- }
- if (file_info.uncompressed_size>0)
- ratio = (file_info.compressed_size*100)/file_info.uncompressed_size;
-
- if (file_info.compression_method==0)
- string_method="Stored";
- else
- if (file_info.compression_method==Z_DEFLATED)
- {
- uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
- if (iLevel==0)
- string_method="Defl:N";
- else if (iLevel==1)
- string_method="Defl:X";
- else if ((iLevel==2) || (iLevel==3))
- string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
- }
- else
- string_method="Unkn. ";
-
- printf("%7lu %6s %7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n",
- file_info.uncompressed_size,string_method,file_info.compressed_size,
- ratio,
- (uLong)file_info.tmu_date.tm_mon + 1,
- (uLong)file_info.tmu_date.tm_mday,
- (uLong)file_info.tmu_date.tm_year % 100,
- (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
- (uLong)file_info.crc,filename_inzip);
- if ((i+1)<gi.number_entry)
- {
- err = unzGoToNextFile(uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGoToNextFile\n",err);
- break;
- }
- }
- }
-
- return 0;
-}
-
-
-int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite)
- unzFile uf;
- const int* popt_extract_without_path;
- int* popt_overwrite;
-{
- char filename_inzip[256];
- char* filename_withoutpath;
- char* p;
- int err=UNZ_OK;
- FILE *fout=NULL;
- void* buf;
- uInt size_buf;
-
- unz_file_info file_info;
- uLong ratio=0;
- err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
-
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
- return err;
- }
-
- size_buf = WRITEBUFFERSIZE;
- buf = (void*)malloc(size_buf);
- if (buf==NULL)
- {
- printf("Error allocating memory\n");
- return UNZ_INTERNALERROR;
- }
-
- p = filename_withoutpath = filename_inzip;
- while ((*p) != '\0')
- {
- if (((*p)=='/') || ((*p)=='\\'))
- filename_withoutpath = p+1;
- p++;
- }
-
- if ((*filename_withoutpath)=='\0')
- {
- if ((*popt_extract_without_path)==0)
- {
- printf("creating directory: %s\n",filename_inzip);
- mymkdir(filename_inzip);
- }
- }
- else
- {
- const char* write_filename;
- int skip=0;
-
- if ((*popt_extract_without_path)==0)
- write_filename = filename_inzip;
- else
- write_filename = filename_withoutpath;
-
- err = unzOpenCurrentFile(uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzOpenCurrentFile\n",err);
- }
-
- if (((*popt_overwrite)==0) && (err==UNZ_OK))
- {
- char rep;
- FILE* ftestexist;
- ftestexist = fopen(write_filename,"rb");
- if (ftestexist!=NULL)
- {
- fclose(ftestexist);
- do
- {
- char answer[128];
- printf("The file %s exist. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
- scanf("%1s",answer);
- rep = answer[0] ;
- if ((rep>='a') && (rep<='z'))
- rep -= 0x20;
- }
- while ((rep!='Y') && (rep!='N') && (rep!='A'));
- }
-
- if (rep == 'N')
- skip = 1;
-
- if (rep == 'A')
- *popt_overwrite=1;
- }
-
- if ((skip==0) && (err==UNZ_OK))
- {
- fout=fopen(write_filename,"wb");
-
- /* some zipfile don't contain directory alone before file */
- if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
- (filename_withoutpath!=(char*)filename_inzip))
- {
- char c=*(filename_withoutpath-1);
- *(filename_withoutpath-1)='\0';
- makedir(write_filename);
- *(filename_withoutpath-1)=c;
- fout=fopen(write_filename,"wb");
- }
-
- if (fout==NULL)
- {
- printf("error opening %s\n",write_filename);
- }
- }
-
- if (fout!=NULL)
- {
- printf(" extracting: %s\n",write_filename);
-
- do
- {
- err = unzReadCurrentFile(uf,buf,size_buf);
- if (err<0)
- {
- printf("error %d with zipfile in unzReadCurrentFile\n",err);
- break;
- }
- if (err>0)
- if (fwrite(buf,err,1,fout)!=1)
- {
- printf("error in writing extracted file\n");
- err=UNZ_ERRNO;
- break;
- }
- }
- while (err>0);
- fclose(fout);
- if (err==0)
- change_file_date(write_filename,file_info.dosDate,
- file_info.tmu_date);
- }
-
- if (err==UNZ_OK)
- {
- err = unzCloseCurrentFile (uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzCloseCurrentFile\n",err);
- }
- }
- else
- unzCloseCurrentFile(uf); /* don't lose the error */
- }
-
- free(buf);
- return err;
-}
-
-
-int do_extract(uf,opt_extract_without_path,opt_overwrite)
- unzFile uf;
- int opt_extract_without_path;
- int opt_overwrite;
-{
- uLong i;
- unz_global_info gi;
- int err;
- FILE* fout=NULL;
-
- err = unzGetGlobalInfo (uf,&gi);
- if (err!=UNZ_OK)
- printf("error %d with zipfile in unzGetGlobalInfo \n",err);
-
- for (i=0;i<gi.number_entry;i++)
- {
- if (do_extract_currentfile(uf,&opt_extract_without_path,
- &opt_overwrite) != UNZ_OK)
- break;
-
- if ((i+1)<gi.number_entry)
- {
- err = unzGoToNextFile(uf);
- if (err!=UNZ_OK)
- {
- printf("error %d with zipfile in unzGoToNextFile\n",err);
- break;
- }
- }
- }
-
- return 0;
-}
-
-int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite)
- unzFile uf;
- const char* filename;
- int opt_extract_without_path;
- int opt_overwrite;
-{
- int err = UNZ_OK;
- if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
- {
- printf("file %s not found in the zipfile\n",filename);
- return 2;
- }
-
- if (do_extract_currentfile(uf,&opt_extract_without_path,
- &opt_overwrite) == UNZ_OK)
- return 0;
- else
- return 1;
-}
-
-
-int main(argc,argv)
- int argc;
- char *argv[];
-{
- const char *zipfilename=NULL;
- const char *filename_to_extract=NULL;
- int i;
- int opt_do_list=0;
- int opt_do_extract=1;
- int opt_do_extract_withoutpath=0;
- int opt_overwrite=0;
- char filename_try[512];
- unzFile uf=NULL;
-
- do_banner();
- if (argc==1)
- {
- do_help();
- exit(0);
- }
- else
- {
- for (i=1;i<argc;i++)
- {
- if ((*argv[i])=='-')
- {
- const char *p=argv[i]+1;
-
- while ((*p)!='\0')
- {
- char c=*(p++);;
- if ((c=='l') || (c=='L'))
- opt_do_list = 1;
- if ((c=='v') || (c=='V'))
- opt_do_list = 1;
- if ((c=='x') || (c=='X'))
- opt_do_extract = 1;
- if ((c=='e') || (c=='E'))
- opt_do_extract = opt_do_extract_withoutpath = 1;
- if ((c=='o') || (c=='O'))
- opt_overwrite=1;
- }
- }
- else
- {
- if (zipfilename == NULL)
- zipfilename = argv[i];
- else if (filename_to_extract==NULL)
- filename_to_extract = argv[i] ;
- }
- }
- }
-
- if (zipfilename!=NULL)
- {
- strcpy(filename_try,zipfilename);
- uf = unzOpen(zipfilename);
- if (uf==NULL)
- {
- strcat(filename_try,".zip");
- uf = unzOpen(filename_try);
- }
- }
-
- if (uf==NULL)
- {
- printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
- exit (1);
- }
- printf("%s opened\n",filename_try);
-
- if (opt_do_list==1)
- return do_list(uf);
- else if (opt_do_extract==1)
- {
- if (filename_to_extract == NULL)
- return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite);
- else
- return do_extract_onefile(uf,filename_to_extract,
- opt_do_extract_withoutpath,opt_overwrite);
- }
- unzCloseCurrentFile(uf);
-
- return 0; /* to avoid warning */
-}
+++ /dev/null
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#ifdef unix
-# include <unistd.h>
-# include <utime.h>
-# include <sys/types.h>
-# include <sys/stat.h>
-#else
-# include <direct.h>
-# include <io.h>
-#endif
-
-#include "zip.h"
-
-
-#define WRITEBUFFERSIZE (16384)
-#define MAXFILENAME (256)
-
-#ifdef WIN32
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- int ret = 0;
- {
- FILETIME ftLocal;
- HANDLE hFind;
- WIN32_FIND_DATA ff32;
-
- hFind = FindFirstFile(f,&ff32);
- if (hFind != INVALID_HANDLE_VALUE)
- {
- FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
- FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
- FindClose(hFind);
- ret = 1;
- }
- }
- return ret;
-}
-#else
-#ifdef unix
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- int ret=0;
- struct stat s; /* results of stat() */
- struct tm* filedate;
- time_t tm_t=0;
-
- if (strcmp(f,"-")!=0)
- {
- char name[MAXFILENAME];
- int len = strlen(f);
- strcpy(name, f);
- if (name[len - 1] == '/')
- name[len - 1] = '\0';
- /* not all systems allow stat'ing a file with / appended */
- if (stat(name,&s)==0)
- {
- tm_t = s.st_mtime;
- ret = 1;
- }
- }
- filedate = localtime(&tm_t);
-
- tmzip->tm_sec = filedate->tm_sec;
- tmzip->tm_min = filedate->tm_min;
- tmzip->tm_hour = filedate->tm_hour;
- tmzip->tm_mday = filedate->tm_mday;
- tmzip->tm_mon = filedate->tm_mon ;
- tmzip->tm_year = filedate->tm_year;
-
- return ret;
-}
-#else
-uLong filetime(f, tmzip, dt)
- char *f; /* name of file to get info on */
- tm_zip *tmzip; /* return value: access, modific. and creation times */
- uLong *dt; /* dostime */
-{
- return 0;
-}
-#endif
-#endif
-
-
-
-
-int check_exist_file(filename)
- const char* filename;
-{
- FILE* ftestexist;
- int ret = 1;
- ftestexist = fopen(filename,"rb");
- if (ftestexist==NULL)
- ret = 0;
- else
- fclose(ftestexist);
- return ret;
-}
-
-void do_banner()
-{
- printf("MiniZip 0.15, demo of zLib + Zip package written by Gilles Vollant\n");
- printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n");
-}
-
-void do_help()
-{
- printf("Usage : minizip [-o] file.zip [files_to_add]\n\n") ;
-}
-
-int main(argc,argv)
- int argc;
- char *argv[];
-{
- int i;
- int opt_overwrite=0;
- int opt_compress_level=Z_DEFAULT_COMPRESSION;
- int zipfilenamearg = 0;
- char filename_try[MAXFILENAME];
- int zipok;
- int err=0;
- int size_buf=0;
- void* buf=NULL,
-
-
- do_banner();
- if (argc==1)
- {
- do_help();
- exit(0);
- return 0;
- }
- else
- {
- for (i=1;i<argc;i++)
- {
- if ((*argv[i])=='-')
- {
- const char *p=argv[i]+1;
-
- while ((*p)!='\0')
- {
- char c=*(p++);;
- if ((c=='o') || (c=='O'))
- opt_overwrite = 1;
- if ((c>='0') && (c<='9'))
- opt_compress_level = c-'0';
- }
- }
- else
- if (zipfilenamearg == 0)
- zipfilenamearg = i ;
- }
- }
-
- size_buf = WRITEBUFFERSIZE;
- buf = (void*)malloc(size_buf);
- if (buf==NULL)
- {
- printf("Error allocating memory\n");
- return ZIP_INTERNALERROR;
- }
-
- if (zipfilenamearg==0)
- zipok=0;
- else
- {
- int i,len;
- int dot_found=0;
-
- zipok = 1 ;
- strcpy(filename_try,argv[zipfilenamearg]);
- len=strlen(filename_try);
- for (i=0;i<len;i++)
- if (filename_try[i]=='.')
- dot_found=1;
-
- if (dot_found==0)
- strcat(filename_try,".zip");
-
- if (opt_overwrite==0)
- if (check_exist_file(filename_try)!=0)
- {
- char rep;
- do
- {
- char answer[128];
- printf("The file %s exist. Overwrite ? [y]es, [n]o : ",filename_try);
- scanf("%1s",answer);
- rep = answer[0] ;
- if ((rep>='a') && (rep<='z'))
- rep -= 0x20;
- }
- while ((rep!='Y') && (rep!='N'));
- if (rep=='N')
- zipok = 0;
- }
- }
-
- if (zipok==1)
- {
- zipFile zf;
- int errclose;
- zf = zipOpen(filename_try,0);
- if (zf == NULL)
- {
- printf("error opening %s\n",filename_try);
- err= ZIP_ERRNO;
- }
- else
- printf("creating %s\n",filename_try);
-
- for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
- {
- if (((*(argv[i]))!='-') && ((*(argv[i]))!='/'))
- {
- FILE * fin;
- int size_read;
- const char* filenameinzip = argv[i];
- zip_fileinfo zi;
-
- zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
- zi.tmz_date.tm_mday = zi.tmz_date.tm_min = zi.tmz_date.tm_year = 0;
- zi.dosDate = 0;
- zi.internal_fa = 0;
- zi.external_fa = 0;
- filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
-
-
- err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
- NULL,0,NULL,0,NULL /* comment*/,
- (opt_compress_level != 0) ? Z_DEFLATED : 0,
- opt_compress_level);
-
- if (err != ZIP_OK)
- printf("error in opening %s in zipfile\n",filenameinzip);
- else
- {
- fin = fopen(filenameinzip,"rb");
- if (fin==NULL)
- {
- err=ZIP_ERRNO;
- printf("error in opening %s for reading\n",filenameinzip);
- }
- }
-
- if (err == ZIP_OK)
- do
- {
- err = ZIP_OK;
- size_read = fread(buf,1,size_buf,fin);
- if (size_read < size_buf)
- if (feof(fin)==0)
- {
- printf("error in reading %s\n",filenameinzip);
- err = ZIP_ERRNO;
- }
-
- if (size_read>0)
- {
- err = zipWriteInFileInZip (zf,buf,size_read);
- if (err<0)
- {
- printf("error in writing %s in the zipfile\n",
- filenameinzip);
- }
-
- }
- } while ((err == ZIP_OK) && (size_read>0));
-
- fclose(fin);
- if (err<0)
- err=ZIP_ERRNO;
- else
- {
- err = zipCloseFileInZip(zf);
- if (err!=ZIP_OK)
- printf("error in closing %s in the zipfile\n",
- filenameinzip);
- }
- }
- }
- errclose = zipClose(zf,NULL);
- if (errclose != ZIP_OK)
- printf("error in closing %s\n",filename_try);
- }
-
- free(buf);
- exit(0);
- return 0; /* to avoid warning */
-}
+++ /dev/null
-
-UnZip 0.15 additionnal library
-
-
- This unzip package allow extract file from .ZIP file, compatible with
-PKZip 2.04g, WinZip, InfoZip tools and compatible.
-
- Multi volume ZipFile (span) are not supported, and old compression used by old
-PKZip 1.x are not supported.
-
-See probdesc.zip from PKWare for specification of .ZIP format.
-
-What is Unzip
- The Zlib library support the deflate compression and the creation of gzip (.gz)
-file. Zlib is free and small.
- The .Zip format, which can contain several compressed files (.gz can containt
-only one file) is a very popular format. This is why I've written a package for reading file compressed in Zipfile.
-
-Using Unzip package
-
-You need source of Zlib (get zlib111.zip and read zlib.h).
-Get unzlb015.zip and read unzip.h (whith documentation of unzip functions)
-
-The Unzip package is only two file : unzip.h and unzip.c. But it use the Zlib
- files.
-unztst.c is a simple sample program, which list file in a zipfile and display
- README.TXT or FILE_ID.DIZ (if these files are found).
-miniunz.c is a mini unzip program.
-
-I'm also currenlyt writing a zipping portion (zip.h, zip.c and test with minizip.c)
-
-Please email me for feedback.
-I hope my source is compatible with Unix system, but I need your help for be sure
-
-Latest revision : Mar 04th, 1998
-
-Check http://www.winimage.com/zLibDll/unzip.html for up to date info.
+++ /dev/null
-/* unzip.c -- IO on .zip files using zlib
- Version 0.15 beta, Mar 19th, 1998,
-
- Read unzip.h for more info
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "zlib.h"
-#include "unzip.h"
-
-#ifdef STDC
-# include <stddef.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
- extern int errno;
-#else
-# include <errno.h>
-#endif
-
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-
-
-#if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) && \
- !defined(CASESENSITIVITYDEFAULT_NO)
-#define CASESENSITIVITYDEFAULT_NO
-#endif
-
-
-#ifndef UNZ_BUFSIZE
-#define UNZ_BUFSIZE (16384)
-#endif
-
-#ifndef UNZ_MAXFILENAMEINZIP
-#define UNZ_MAXFILENAMEINZIP (256)
-#endif
-
-#ifndef ALLOC
-# define ALLOC(size) (malloc(size))
-#endif
-#ifndef TRYFREE
-# define TRYFREE(p) {if (p) free(p);}
-#endif
-
-#define SIZECENTRALDIRITEM (0x2e)
-#define SIZEZIPLOCALHEADER (0x1e)
-
-
-/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
-
-#ifndef SEEK_CUR
-#define SEEK_CUR 1
-#endif
-
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-const char unz_copyright[] =
- " unzip 0.15 Copyright 1998 Gilles Vollant ";
-
-/* unz_file_info_interntal contain internal info about a file in zipfile*/
-typedef struct unz_file_info_internal_s
-{
- uLong offset_curfile;/* relative offset of local header 4 bytes */
-} unz_file_info_internal;
-
-
-/* file_in_zip_read_info_s contain internal information about a file in zipfile,
- when reading and decompress it */
-typedef struct
-{
- char *read_buffer; /* internal buffer for compressed data */
- z_stream stream; /* zLib stream structure for inflate */
-
- uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
- uLong stream_initialised; /* flag set if stream structure is initialised*/
-
- uLong offset_local_extrafield;/* offset of the local extra field */
- uInt size_local_extrafield;/* size of the local extra field */
- uLong pos_local_extrafield; /* position in the local extra field in read*/
-
- uLong crc32; /* crc32 of all data uncompressed */
- uLong crc32_wait; /* crc32 we must obtain after decompress all */
- uLong rest_read_compressed; /* number of byte to be decompressed */
- uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/
- FILE* file; /* io structore of the zipfile */
- uLong compression_method; /* compression method (0==store) */
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
-} file_in_zip_read_info_s;
-
-
-/* unz_s contain internal information about the zipfile
-*/
-typedef struct
-{
- FILE* file; /* io structore of the zipfile */
- unz_global_info gi; /* public global information */
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
- uLong num_file; /* number of the current file in the zipfile*/
- uLong pos_in_central_dir; /* pos of the current file in the central dir*/
- uLong current_file_ok; /* flag about the usability of the current file*/
- uLong central_pos; /* position of the beginning of the central dir*/
-
- uLong size_central_dir; /* size of the central directory */
- uLong offset_central_dir; /* offset of start of central directory with
- respect to the starting disk number */
-
- unz_file_info cur_file_info; /* public info about the current file in zip*/
- unz_file_info_internal cur_file_info_internal; /* private info about it*/
- file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
- file if we are decompressing it */
-} unz_s;
-
-
-/* ===========================================================================
- Read a byte from a gz_stream; update next_in and avail_in. Return EOF
- for end of file.
- IN assertion: the stream s has been successfully opened for reading.
-*/
-
-
-local int unzlocal_getByte(fin,pi)
- FILE *fin;
- int *pi;
-{
- unsigned char c;
- int err = fread(&c, 1, 1, fin);
- if (err==1)
- {
- *pi = (int)c;
- return UNZ_OK;
- }
- else
- {
- if (ferror(fin))
- return UNZ_ERRNO;
- else
- return UNZ_EOF;
- }
-}
-
-
-/* ===========================================================================
- Reads a long in LSB order from the given gz_stream. Sets
-*/
-local int unzlocal_getShort (fin,pX)
- FILE* fin;
- uLong *pX;
-{
- uLong x ;
- int i;
- int err;
-
- err = unzlocal_getByte(fin,&i);
- x = (uLong)i;
-
- if (err==UNZ_OK)
- err = unzlocal_getByte(fin,&i);
- x += ((uLong)i)<<8;
-
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-local int unzlocal_getLong (fin,pX)
- FILE* fin;
- uLong *pX;
-{
- uLong x ;
- int i;
- int err;
-
- err = unzlocal_getByte(fin,&i);
- x = (uLong)i;
-
- if (err==UNZ_OK)
- err = unzlocal_getByte(fin,&i);
- x += ((uLong)i)<<8;
-
- if (err==UNZ_OK)
- err = unzlocal_getByte(fin,&i);
- x += ((uLong)i)<<16;
-
- if (err==UNZ_OK)
- err = unzlocal_getByte(fin,&i);
- x += ((uLong)i)<<24;
-
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
-}
-
-
-/* My own strcmpi / strcasecmp */
-local int strcmpcasenosensitive_internal (fileName1,fileName2)
- const char* fileName1;
- const char* fileName2;
-{
- for (;;)
- {
- char c1=*(fileName1++);
- char c2=*(fileName2++);
- if ((c1>='a') && (c1<='z'))
- c1 -= 0x20;
- if ((c2>='a') && (c2<='z'))
- c2 -= 0x20;
- if (c1=='\0')
- return ((c2=='\0') ? 0 : -1);
- if (c2=='\0')
- return 1;
- if (c1<c2)
- return -1;
- if (c1>c2)
- return 1;
- }
-}
-
-
-#ifdef CASESENSITIVITYDEFAULT_NO
-#define CASESENSITIVITYDEFAULTVALUE 2
-#else
-#define CASESENSITIVITYDEFAULTVALUE 1
-#endif
-
-#ifndef STRCMPCASENOSENTIVEFUNCTION
-#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
-#endif
-
-/*
- Compare two filename (fileName1,fileName2).
- If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
- If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
- or strcasecmp)
- If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
- (like 1 on Unix, 2 on Windows)
-
-*/
-extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity)
- const char* fileName1;
- const char* fileName2;
- int iCaseSensitivity;
-{
- if (iCaseSensitivity==0)
- iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
-
- if (iCaseSensitivity==1)
- return strcmp(fileName1,fileName2);
-
- return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
-}
-
-#define BUFREADCOMMENT (0x400)
-
-/*
- Locate the Central directory of a zipfile (at the end, just before
- the global comment)
-*/
-local uLong unzlocal_SearchCentralDir(fin)
- FILE *fin;
-{
- unsigned char* buf;
- uLong uSizeFile;
- uLong uBackRead;
- uLong uMaxBack=0xffff; /* maximum size of global comment */
- uLong uPosFound=0;
-
- if (fseek(fin,0,SEEK_END) != 0)
- return 0;
-
-
- uSizeFile = ftell( fin );
-
- if (uMaxBack>uSizeFile)
- uMaxBack = uSizeFile;
-
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
- if (buf==NULL)
- return 0;
-
- uBackRead = 4;
- while (uBackRead<uMaxBack)
- {
- uLong uReadSize,uReadPos ;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- uBackRead = uMaxBack;
- else
- uBackRead+=BUFREADCOMMENT;
- uReadPos = uSizeFile-uBackRead ;
-
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
- (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
- if (fseek(fin,uReadPos,SEEK_SET)!=0)
- break;
-
- if (fread(buf,(uInt)uReadSize,1,fin)!=1)
- break;
-
- for (i=(int)uReadSize-3; (i--)>0;)
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
- {
- uPosFound = uReadPos+i;
- break;
- }
-
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- return uPosFound;
-}
-
-/*
- Open a Zip file. path contain the full pathname (by example,
- on a Windows NT computer "c:\\test\\zlib109.zip" or on an Unix computer
- "zlib/zlib109.zip".
- If the zipfile cannot be opened (file don't exist or in not valid), the
- return value is NULL.
- Else, the return value is a unzFile Handle, usable with other function
- of this unzip package.
-*/
-extern unzFile ZEXPORT unzOpen (path)
- const char *path;
-{
- unz_s us;
- unz_s *s;
- uLong central_pos,uL;
- FILE * fin ;
-
- uLong number_disk; /* number of the current dist, used for
- spaning ZIP, unsupported, always 0*/
- uLong number_disk_with_CD; /* number the the disk with central dir, used
- for spaning ZIP, unsupported, always 0*/
- uLong number_entry_CD; /* total number of entries in
- the central dir
- (same than number_entry on nospan) */
-
- int err=UNZ_OK;
-
- if (unz_copyright[0]!=' ')
- return NULL;
-
- fin=fopen(path,"rb");
- if (fin==NULL)
- return NULL;
-
- central_pos = unzlocal_SearchCentralDir(fin);
- if (central_pos==0)
- err=UNZ_ERRNO;
-
- if (fseek(fin,central_pos,SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
- /* the signature, already checked */
- if (unzlocal_getLong(fin,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of this disk */
- if (unzlocal_getShort(fin,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* number of the disk with the start of the central directory */
- if (unzlocal_getShort(fin,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* total number of entries in the central dir on this disk */
- if (unzlocal_getShort(fin,&us.gi.number_entry)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* total number of entries in the central dir */
- if (unzlocal_getShort(fin,&number_entry_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if ((number_entry_CD!=us.gi.number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=UNZ_BADZIPFILE;
-
- /* size of the central directory */
- if (unzlocal_getLong(fin,&us.size_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* offset of start of central directory with respect to the
- starting disk number */
- if (unzlocal_getLong(fin,&us.offset_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- /* zipfile comment length */
- if (unzlocal_getShort(fin,&us.gi.size_comment)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
- (err==UNZ_OK))
- err=UNZ_BADZIPFILE;
-
- if (err!=UNZ_OK)
- {
- fclose(fin);
- return NULL;
- }
-
- us.file=fin;
- us.byte_before_the_zipfile = central_pos -
- (us.offset_central_dir+us.size_central_dir);
- us.central_pos = central_pos;
- us.pfile_in_zip_read = NULL;
-
-
- s=(unz_s*)ALLOC(sizeof(unz_s));
- *s=us;
- unzGoToFirstFile((unzFile)s);
- return (unzFile)s;
-}
-
-
-/*
- Close a ZipFile opened with unzipOpen.
- If there is files inside the .Zip opened with unzipOpenCurrentFile (see later),
- these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
- return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzClose (file)
- unzFile file;
-{
- unz_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
-
- if (s->pfile_in_zip_read!=NULL)
- unzCloseCurrentFile(file);
-
- fclose(s->file);
- TRYFREE(s);
- return UNZ_OK;
-}
-
-
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem. */
-extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info)
- unzFile file;
- unz_global_info *pglobal_info;
-{
- unz_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- *pglobal_info=s->gi;
- return UNZ_OK;
-}
-
-
-/*
- Translate date/time from Dos format to tm_unz (readable more easilty)
-*/
-local void unzlocal_DosDateToTmuDate (ulDosDate, ptm)
- uLong ulDosDate;
- tm_unz* ptm;
-{
- uLong uDate;
- uDate = (uLong)(ulDosDate>>16);
- ptm->tm_mday = (uInt)(uDate&0x1f) ;
- ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
- ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
-
- ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
- ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;
- ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;
-}
-
-/*
- Get Info about the current file in the zipfile, with internal only info
-*/
-local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file,
- unz_file_info *pfile_info,
- unz_file_info_internal
- *pfile_info_internal,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize));
-
-local int unzlocal_GetCurrentFileInfoInternal (file,
- pfile_info,
- pfile_info_internal,
- szFileName, fileNameBufferSize,
- extraField, extraFieldBufferSize,
- szComment, commentBufferSize)
- unzFile file;
- unz_file_info *pfile_info;
- unz_file_info_internal *pfile_info_internal;
- char *szFileName;
- uLong fileNameBufferSize;
- void *extraField;
- uLong extraFieldBufferSize;
- char *szComment;
- uLong commentBufferSize;
-{
- unz_s* s;
- unz_file_info file_info;
- unz_file_info_internal file_info_internal;
- int err=UNZ_OK;
- uLong uMagic;
- long lSeek=0;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- if (fseek(s->file,s->pos_in_central_dir+s->byte_before_the_zipfile,SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
-
- /* we check the magic */
- if (err==UNZ_OK)
- if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x02014b50)
- err=UNZ_BADZIPFILE;
-
- if (unzlocal_getShort(s->file,&file_info.version) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.version_needed) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.flag) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.compression_method) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&file_info.dosDate) != UNZ_OK)
- err=UNZ_ERRNO;
-
- unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
-
- if (unzlocal_getLong(s->file,&file_info.crc) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&file_info.compressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&file_info.uncompressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.size_filename) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.size_file_extra) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.size_file_comment) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.disk_num_start) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&file_info.internal_fa) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&file_info.external_fa) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&file_info_internal.offset_curfile) != UNZ_OK)
- err=UNZ_ERRNO;
-
- lSeek+=file_info.size_filename;
- if ((err==UNZ_OK) && (szFileName!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_filename<fileNameBufferSize)
- {
- *(szFileName+file_info.size_filename)='\0';
- uSizeRead = file_info.size_filename;
- }
- else
- uSizeRead = fileNameBufferSize;
-
- if ((file_info.size_filename>0) && (fileNameBufferSize>0))
- if (fread(szFileName,(uInt)uSizeRead,1,s->file)!=1)
- err=UNZ_ERRNO;
- lSeek -= uSizeRead;
- }
-
-
- if ((err==UNZ_OK) && (extraField!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_file_extra<extraFieldBufferSize)
- uSizeRead = file_info.size_file_extra;
- else
- uSizeRead = extraFieldBufferSize;
-
- if (lSeek!=0)
- if (fseek(s->file,lSeek,SEEK_CUR)==0)
- lSeek=0;
- else
- err=UNZ_ERRNO;
- if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
- if (fread(extraField,(uInt)uSizeRead,1,s->file)!=1)
- err=UNZ_ERRNO;
- lSeek += file_info.size_file_extra - uSizeRead;
- }
- else
- lSeek+=file_info.size_file_extra;
-
-
- if ((err==UNZ_OK) && (szComment!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_file_comment<commentBufferSize)
- {
- *(szComment+file_info.size_file_comment)='\0';
- uSizeRead = file_info.size_file_comment;
- }
- else
- uSizeRead = commentBufferSize;
-
- if (lSeek!=0)
- if (fseek(s->file,lSeek,SEEK_CUR)==0)
- lSeek=0;
- else
- err=UNZ_ERRNO;
- if ((file_info.size_file_comment>0) && (commentBufferSize>0))
- if (fread(szComment,(uInt)uSizeRead,1,s->file)!=1)
- err=UNZ_ERRNO;
- lSeek+=file_info.size_file_comment - uSizeRead;
- }
- else
- lSeek+=file_info.size_file_comment;
-
- if ((err==UNZ_OK) && (pfile_info!=NULL))
- *pfile_info=file_info;
-
- if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
- *pfile_info_internal=file_info_internal;
-
- return err;
-}
-
-
-
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem.
-*/
-extern int ZEXPORT unzGetCurrentFileInfo (file,
- pfile_info,
- szFileName, fileNameBufferSize,
- extraField, extraFieldBufferSize,
- szComment, commentBufferSize)
- unzFile file;
- unz_file_info *pfile_info;
- char *szFileName;
- uLong fileNameBufferSize;
- void *extraField;
- uLong extraFieldBufferSize;
- char *szComment;
- uLong commentBufferSize;
-{
- return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,
- szFileName,fileNameBufferSize,
- extraField,extraFieldBufferSize,
- szComment,commentBufferSize);
-}
-
-/*
- Set the current file of the zipfile to the first file.
- return UNZ_OK if there is no problem
-*/
-extern int ZEXPORT unzGoToFirstFile (file)
- unzFile file;
-{
- int err=UNZ_OK;
- unz_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- s->pos_in_central_dir=s->offset_central_dir;
- s->num_file=0;
- err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-
-/*
- Set the current file of the zipfile to the next file.
- return UNZ_OK if there is no problem
- return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
-*/
-extern int ZEXPORT unzGoToNextFile (file)
- unzFile file;
-{
- unz_s* s;
- int err;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- if (!s->current_file_ok)
- return UNZ_END_OF_LIST_OF_FILE;
- if (s->num_file+1==s->gi.number_entry)
- return UNZ_END_OF_LIST_OF_FILE;
-
- s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
- s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
- s->num_file++;
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- return err;
-}
-
-
-/*
- Try locate the file szFileName in the zipfile.
- For the iCaseSensitivity signification, see unzipStringFileNameCompare
-
- return value :
- UNZ_OK if the file is found. It becomes the current file.
- UNZ_END_OF_LIST_OF_FILE if the file is not found
-*/
-extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)
- unzFile file;
- const char *szFileName;
- int iCaseSensitivity;
-{
- unz_s* s;
- int err;
-
-
- uLong num_fileSaved;
- uLong pos_in_central_dirSaved;
-
-
- if (file==NULL)
- return UNZ_PARAMERROR;
-
- if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
- return UNZ_PARAMERROR;
-
- s=(unz_s*)file;
- if (!s->current_file_ok)
- return UNZ_END_OF_LIST_OF_FILE;
-
- num_fileSaved = s->num_file;
- pos_in_central_dirSaved = s->pos_in_central_dir;
-
- err = unzGoToFirstFile(file);
-
- while (err == UNZ_OK)
- {
- char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
- unzGetCurrentFileInfo(file,NULL,
- szCurrentFileName,sizeof(szCurrentFileName)-1,
- NULL,0,NULL,0);
- if (unzStringFileNameCompare(szCurrentFileName,
- szFileName,iCaseSensitivity)==0)
- return UNZ_OK;
- err = unzGoToNextFile(file);
- }
-
- s->num_file = num_fileSaved ;
- s->pos_in_central_dir = pos_in_central_dirSaved ;
- return err;
-}
-
-
-/*
- Read the local header of the current zipfile
- Check the coherency of the local header and info in the end of central
- directory about this file
- store in *piSizeVar the size of extra info in local header
- (filename and size of extra field data)
-*/
-local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
- poffset_local_extrafield,
- psize_local_extrafield)
- unz_s* s;
- uInt* piSizeVar;
- uLong *poffset_local_extrafield;
- uInt *psize_local_extrafield;
-{
- uLong uMagic,uData,uFlags;
- uLong size_filename;
- uLong size_extra_field;
- int err=UNZ_OK;
-
- *piSizeVar = 0;
- *poffset_local_extrafield = 0;
- *psize_local_extrafield = 0;
-
- if (fseek(s->file,s->cur_file_info_internal.offset_curfile +
- s->byte_before_the_zipfile,SEEK_SET)!=0)
- return UNZ_ERRNO;
-
-
- if (err==UNZ_OK)
- if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x04034b50)
- err=UNZ_BADZIPFILE;
-
- if (unzlocal_getShort(s->file,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
-/*
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
- err=UNZ_BADZIPFILE;
-*/
- if (unzlocal_getShort(s->file,&uFlags) != UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unzlocal_getShort(s->file,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
- err=UNZ_BADZIPFILE;
-
- if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
- (s->cur_file_info.compression_method!=Z_DEFLATED))
- err=UNZ_BADZIPFILE;
-
- if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* date/time */
- err=UNZ_ERRNO;
-
- if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* crc */
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) &&
- ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
- if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* size compr */
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) &&
- ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
- if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* size uncompr */
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) &&
- ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
-
-
- if (unzlocal_getShort(s->file,&size_filename) != UNZ_OK)
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
- err=UNZ_BADZIPFILE;
-
- *piSizeVar += (uInt)size_filename;
-
- if (unzlocal_getShort(s->file,&size_extra_field) != UNZ_OK)
- err=UNZ_ERRNO;
- *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
- SIZEZIPLOCALHEADER + size_filename;
- *psize_local_extrafield = (uInt)size_extra_field;
-
- *piSizeVar += (uInt)size_extra_field;
-
- return err;
-}
-
-/*
- Open for reading data the current file in the zipfile.
- If there is no error and the file is opened, the return value is UNZ_OK.
-*/
-extern int ZEXPORT unzOpenCurrentFile (file)
- unzFile file;
-{
- int err=UNZ_OK;
- int Store;
- uInt iSizeVar;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- uLong offset_local_extrafield; /* offset of the local extra field */
- uInt size_local_extrafield; /* size of the local extra field */
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- if (!s->current_file_ok)
- return UNZ_PARAMERROR;
-
- if (s->pfile_in_zip_read != NULL)
- unzCloseCurrentFile(file);
-
- if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar,
- &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
- return UNZ_BADZIPFILE;
-
- pfile_in_zip_read_info = (file_in_zip_read_info_s*)
- ALLOC(sizeof(file_in_zip_read_info_s));
- if (pfile_in_zip_read_info==NULL)
- return UNZ_INTERNALERROR;
-
- pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
- pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
- pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
- pfile_in_zip_read_info->pos_local_extrafield=0;
-
- if (pfile_in_zip_read_info->read_buffer==NULL)
- {
- TRYFREE(pfile_in_zip_read_info);
- return UNZ_INTERNALERROR;
- }
-
- pfile_in_zip_read_info->stream_initialised=0;
-
- if ((s->cur_file_info.compression_method!=0) &&
- (s->cur_file_info.compression_method!=Z_DEFLATED))
- err=UNZ_BADZIPFILE;
- Store = s->cur_file_info.compression_method==0;
-
- pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
- pfile_in_zip_read_info->crc32=0;
- pfile_in_zip_read_info->compression_method =
- s->cur_file_info.compression_method;
- pfile_in_zip_read_info->file=s->file;
- pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
-
- pfile_in_zip_read_info->stream.total_out = 0;
-
- if (!Store)
- {
- pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
- pfile_in_zip_read_info->stream.zfree = (free_func)0;
- pfile_in_zip_read_info->stream.opaque = (voidpf)0;
-
- err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
- if (err == Z_OK)
- pfile_in_zip_read_info->stream_initialised=1;
- /* windowBits is passed < 0 to tell that there is no zlib header.
- * Note that in this case inflate *requires* an extra "dummy" byte
- * after the compressed stream in order to complete decompression and
- * return Z_STREAM_END.
- * In unzip, i don't wait absolutely Z_STREAM_END because I known the
- * size of both compressed and uncompressed data
- */
- }
- pfile_in_zip_read_info->rest_read_compressed =
- s->cur_file_info.compressed_size ;
- pfile_in_zip_read_info->rest_read_uncompressed =
- s->cur_file_info.uncompressed_size ;
-
-
- pfile_in_zip_read_info->pos_in_zipfile =
- s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
- iSizeVar;
-
- pfile_in_zip_read_info->stream.avail_in = (uInt)0;
-
-
- s->pfile_in_zip_read = pfile_in_zip_read_info;
- return UNZ_OK;
-}
-
-
-/*
- Read bytes from the current file.
- buf contain buffer where data must be copied
- len the size of buf.
-
- return the number of byte copied if somes bytes are copied
- return 0 if the end of file was reached
- return <0 with error code if there is an error
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)
-*/
-extern int ZEXPORT unzReadCurrentFile (file, buf, len)
- unzFile file;
- voidp buf;
- unsigned len;
-{
- int err=UNZ_OK;
- uInt iRead = 0;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
-
- if ((pfile_in_zip_read_info->read_buffer == NULL))
- return UNZ_END_OF_LIST_OF_FILE;
- if (len==0)
- return 0;
-
- pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
-
- pfile_in_zip_read_info->stream.avail_out = (uInt)len;
-
- if (len>pfile_in_zip_read_info->rest_read_uncompressed)
- pfile_in_zip_read_info->stream.avail_out =
- (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
-
- while (pfile_in_zip_read_info->stream.avail_out>0)
- {
- if ((pfile_in_zip_read_info->stream.avail_in==0) &&
- (pfile_in_zip_read_info->rest_read_compressed>0))
- {
- uInt uReadThis = UNZ_BUFSIZE;
- if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
- uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
- if (uReadThis == 0)
- return UNZ_EOF;
- if (fseek(pfile_in_zip_read_info->file,
- pfile_in_zip_read_info->pos_in_zipfile +
- pfile_in_zip_read_info->byte_before_the_zipfile,SEEK_SET)!=0)
- return UNZ_ERRNO;
- if (fread(pfile_in_zip_read_info->read_buffer,uReadThis,1,
- pfile_in_zip_read_info->file)!=1)
- return UNZ_ERRNO;
- pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
-
- pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
-
- pfile_in_zip_read_info->stream.next_in =
- (Bytef*)pfile_in_zip_read_info->read_buffer;
- pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
- }
-
- if (pfile_in_zip_read_info->compression_method==0)
- {
- uInt uDoCopy,i ;
- if (pfile_in_zip_read_info->stream.avail_out <
- pfile_in_zip_read_info->stream.avail_in)
- uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
- else
- uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
-
- for (i=0;i<uDoCopy;i++)
- *(pfile_in_zip_read_info->stream.next_out+i) =
- *(pfile_in_zip_read_info->stream.next_in+i);
-
- pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
- pfile_in_zip_read_info->stream.next_out,
- uDoCopy);
- pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
- pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
- pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
- pfile_in_zip_read_info->stream.next_out += uDoCopy;
- pfile_in_zip_read_info->stream.next_in += uDoCopy;
- pfile_in_zip_read_info->stream.total_out += uDoCopy;
- iRead += uDoCopy;
- }
- else
- {
- uLong uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- uLong uOutThis;
- int flush=Z_SYNC_FLUSH;
-
- uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
- bufBefore = pfile_in_zip_read_info->stream.next_out;
-
- /*
- if ((pfile_in_zip_read_info->rest_read_uncompressed ==
- pfile_in_zip_read_info->stream.avail_out) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- flush = Z_FINISH;
- */
- err=inflate(&pfile_in_zip_read_info->stream,flush);
-
- uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
-
- pfile_in_zip_read_info->crc32 =
- crc32(pfile_in_zip_read_info->crc32,bufBefore,
- (uInt)(uOutThis));
-
- pfile_in_zip_read_info->rest_read_uncompressed -=
- uOutThis;
-
- iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
-
- if (err==Z_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=Z_OK)
- break;
- }
- }
-
- if (err==Z_OK)
- return iRead;
- return err;
-}
-
-
-/*
- Give the current position in uncompressed data
-*/
-extern z_off_t ZEXPORT unztell (file)
- unzFile file;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- return (z_off_t)pfile_in_zip_read_info->stream.total_out;
-}
-
-
-/*
- return 1 if the end of file was reached, 0 elsewhere
-*/
-extern int ZEXPORT unzeof (file)
- unzFile file;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
- return 1;
- else
- return 0;
-}
-
-
-
-/*
- Read extra field from the current file (opened by unzOpenCurrentFile)
- This is the local-header version of the extra field (sometimes, there is
- more info in the local-header version than in the central-header)
-
- if buf==NULL, it return the size of the local extra field that can be read
-
- if buf!=NULL, len is the size of the buffer, the extra header is copied in
- buf.
- the return value is the number of bytes copied in buf, or (if <0)
- the error code
-*/
-extern int ZEXPORT unzGetLocalExtrafield (file,buf,len)
- unzFile file;
- voidp buf;
- unsigned len;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- uInt read_now;
- uLong size_to_read;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
- pfile_in_zip_read_info->pos_local_extrafield);
-
- if (buf==NULL)
- return (int)size_to_read;
-
- if (len>size_to_read)
- read_now = (uInt)size_to_read;
- else
- read_now = (uInt)len ;
-
- if (read_now==0)
- return 0;
-
- if (fseek(pfile_in_zip_read_info->file,
- pfile_in_zip_read_info->offset_local_extrafield +
- pfile_in_zip_read_info->pos_local_extrafield,SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (fread(buf,(uInt)size_to_read,1,pfile_in_zip_read_info->file)!=1)
- return UNZ_ERRNO;
-
- return (int)read_now;
-}
-
-/*
- Close the file in zip opened with unzipOpenCurrentFile
- Return UNZ_CRCERROR if all the file was read but the CRC is not good
-*/
-extern int ZEXPORT unzCloseCurrentFile (file)
- unzFile file;
-{
- int err=UNZ_OK;
-
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
-
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
- {
- if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
- err=UNZ_CRCERROR;
- }
-
-
- TRYFREE(pfile_in_zip_read_info->read_buffer);
- pfile_in_zip_read_info->read_buffer = NULL;
- if (pfile_in_zip_read_info->stream_initialised)
- inflateEnd(&pfile_in_zip_read_info->stream);
-
- pfile_in_zip_read_info->stream_initialised = 0;
- TRYFREE(pfile_in_zip_read_info);
-
- s->pfile_in_zip_read=NULL;
-
- return err;
-}
-
-
-/*
- Get the global comment string of the ZipFile, in the szComment buffer.
- uSizeBuf is the size of the szComment buffer.
- return the number of byte copied or an error code <0
-*/
-extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
- unzFile file;
- char *szComment;
- uLong uSizeBuf;
-{
- int err=UNZ_OK;
- unz_s* s;
- uLong uReadThis ;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
-
- uReadThis = uSizeBuf;
- if (uReadThis>s->gi.size_comment)
- uReadThis = s->gi.size_comment;
-
- if (fseek(s->file,s->central_pos+22,SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (uReadThis>0)
- {
- *szComment='\0';
- if (fread(szComment,(uInt)uReadThis,1,s->file)!=1)
- return UNZ_ERRNO;
- }
-
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
- *(szComment+s->gi.size_comment)='\0';
- return (int)uReadThis;
-}
+++ /dev/null
- unzOpen @61
- unzClose @62
- unzGetGlobalInfo @63
- unzGetCurrentFileInfo @64
- unzGoToFirstFile @65
- unzGoToNextFile @66
- unzOpenCurrentFile @67
- unzReadCurrentFile @68
- unztell @70
- unzeof @71
- unzCloseCurrentFile @72
- unzGetGlobalComment @73
- unzStringFileNameCompare @74
- unzLocateFile @75
- unzGetLocalExtrafield @76
+++ /dev/null
-/* unzip.h -- IO for uncompress .zip files using zlib
- Version 0.15 beta, Mar 19th, 1998,
-
- Copyright (C) 1998 Gilles Vollant
-
- This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
- WinZip, InfoZip tools and compatible.
- Encryption and multi volume ZipFile (span) are not supported.
- Old compressions used by old PKZip 1.x are not supported
-
- THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
- CAN CHANGE IN FUTURE VERSION !!
- I WAIT FEEDBACK at mail info@winimage.com
- Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution
-
- Condition of use and distribution are the same than zlib :
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
-
-*/
-/* for more info about .ZIP format, see
- ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
- PkWare has also a specification at :
- ftp://ftp.pkware.com/probdesc.zip */
-
-#ifndef _unz_H
-#define _unz_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _ZLIB_H
-#include "zlib.h"
-#endif
-
-#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
-/* like the STRICT of WIN32, we define a pointer that cannot be converted
- from (void*) without cast */
-typedef struct TagunzFile__ { int unused; } unzFile__;
-typedef unzFile__ *unzFile;
-#else
-typedef voidp unzFile;
-#endif
-
-
-#define UNZ_OK (0)
-#define UNZ_END_OF_LIST_OF_FILE (-100)
-#define UNZ_ERRNO (Z_ERRNO)
-#define UNZ_EOF (0)
-#define UNZ_PARAMERROR (-102)
-#define UNZ_BADZIPFILE (-103)
-#define UNZ_INTERNALERROR (-104)
-#define UNZ_CRCERROR (-105)
-
-/* tm_unz contain date/time info */
-typedef struct tm_unz_s
-{
- uInt tm_sec; /* seconds after the minute - [0,59] */
- uInt tm_min; /* minutes after the hour - [0,59] */
- uInt tm_hour; /* hours since midnight - [0,23] */
- uInt tm_mday; /* day of the month - [1,31] */
- uInt tm_mon; /* months since January - [0,11] */
- uInt tm_year; /* years - [1980..2044] */
-} tm_unz;
-
-/* unz_global_info structure contain global data about the ZIPfile
- These data comes from the end of central dir */
-typedef struct unz_global_info_s
-{
- uLong number_entry; /* total number of entries in
- the central dir on this disk */
- uLong size_comment; /* size of the global comment of the zipfile */
-} unz_global_info;
-
-
-/* unz_file_info contain information about a file in the zipfile */
-typedef struct unz_file_info_s
-{
- uLong version; /* version made by 2 bytes */
- uLong version_needed; /* version needed to extract 2 bytes */
- uLong flag; /* general purpose bit flag 2 bytes */
- uLong compression_method; /* compression method 2 bytes */
- uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
- uLong crc; /* crc-32 4 bytes */
- uLong compressed_size; /* compressed size 4 bytes */
- uLong uncompressed_size; /* uncompressed size 4 bytes */
- uLong size_filename; /* filename length 2 bytes */
- uLong size_file_extra; /* extra field length 2 bytes */
- uLong size_file_comment; /* file comment length 2 bytes */
-
- uLong disk_num_start; /* disk number start 2 bytes */
- uLong internal_fa; /* internal file attributes 2 bytes */
- uLong external_fa; /* external file attributes 4 bytes */
-
- tm_unz tmu_date;
-} unz_file_info;
-
-extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
- const char* fileName2,
- int iCaseSensitivity));
-/*
- Compare two filename (fileName1,fileName2).
- If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
- If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
- or strcasecmp)
- If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
- (like 1 on Unix, 2 on Windows)
-*/
-
-
-extern unzFile ZEXPORT unzOpen OF((const char *path));
-/*
- Open a Zip file. path contain the full pathname (by example,
- on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
- "zlib/zlib111.zip".
- If the zipfile cannot be opened (file don't exist or in not valid), the
- return value is NULL.
- Else, the return value is a unzFile Handle, usable with other function
- of this unzip package.
-*/
-
-extern int ZEXPORT unzClose OF((unzFile file));
-/*
- Close a ZipFile opened with unzipOpen.
- If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
- these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
- return UNZ_OK if there is no problem. */
-
-extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
- unz_global_info *pglobal_info));
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
- return UNZ_OK if there is no problem. */
-
-
-extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
- char *szComment,
- uLong uSizeBuf));
-/*
- Get the global comment string of the ZipFile, in the szComment buffer.
- uSizeBuf is the size of the szComment buffer.
- return the number of byte copied or an error code <0
-*/
-
-
-/***************************************************************************/
-/* Unzip package allow you browse the directory of the zipfile */
-
-extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
-/*
- Set the current file of the zipfile to the first file.
- return UNZ_OK if there is no problem
-*/
-
-extern int ZEXPORT unzGoToNextFile OF((unzFile file));
-/*
- Set the current file of the zipfile to the next file.
- return UNZ_OK if there is no problem
- return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
-*/
-
-extern int ZEXPORT unzLocateFile OF((unzFile file,
- const char *szFileName,
- int iCaseSensitivity));
-/*
- Try locate the file szFileName in the zipfile.
- For the iCaseSensitivity signification, see unzStringFileNameCompare
-
- return value :
- UNZ_OK if the file is found. It becomes the current file.
- UNZ_END_OF_LIST_OF_FILE if the file is not found
-*/
-
-
-extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
- unz_file_info *pfile_info,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize));
-/*
- Get Info about the current file
- if pfile_info!=NULL, the *pfile_info structure will contain somes info about
- the current file
- if szFileName!=NULL, the filemane string will be copied in szFileName
- (fileNameBufferSize is the size of the buffer)
- if extraField!=NULL, the extra field information will be copied in extraField
- (extraFieldBufferSize is the size of the buffer).
- This is the Central-header version of the extra field
- if szComment!=NULL, the comment string of the file will be copied in szComment
- (commentBufferSize is the size of the buffer)
-*/
-
-/***************************************************************************/
-/* for reading the content of the current zipfile, you can open it, read data
- from it, and close it (you can close it before reading all the file)
- */
-
-extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
-/*
- Open for reading data the current file in the zipfile.
- If there is no error, the return value is UNZ_OK.
-*/
-
-extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
-/*
- Close the file in zip opened with unzOpenCurrentFile
- Return UNZ_CRCERROR if all the file was read but the CRC is not good
-*/
-
-
-extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
- voidp buf,
- unsigned len));
-/*
- Read bytes from the current file (opened by unzOpenCurrentFile)
- buf contain buffer where data must be copied
- len the size of buf.
-
- return the number of byte copied if somes bytes are copied
- return 0 if the end of file was reached
- return <0 with error code if there is an error
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)
-*/
-
-extern z_off_t ZEXPORT unztell OF((unzFile file));
-/*
- Give the current position in uncompressed data
-*/
-
-extern int ZEXPORT unzeof OF((unzFile file));
-/*
- return 1 if the end of file was reached, 0 elsewhere
-*/
-
-extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
- voidp buf,
- unsigned len));
-/*
- Read extra field from the current file (opened by unzOpenCurrentFile)
- This is the local-header version of the extra field (sometimes, there is
- more info in the local-header version than in the central-header)
-
- if buf==NULL, it return the size of the local extra field
-
- if buf!=NULL, len is the size of the buffer, the extra header is copied in
- buf.
- the return value is the number of bytes copied in buf, or (if <0)
- the error code
-*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _unz_H */
+++ /dev/null
-/* zip.c -- IO on .zip files using zlib
- Version 0.15 beta, Mar 19th, 1998,
-
- Read zip.h for more info
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "zlib.h"
-#include "zip.h"
-
-#ifdef STDC
-# include <stddef.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
- extern int errno;
-#else
-# include <errno.h>
-#endif
-
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-#ifndef VERSIONMADEBY
-# define VERSIONMADEBY (0x0) /* platform depedent */
-#endif
-
-#ifndef Z_BUFSIZE
-#define Z_BUFSIZE (16384)
-#endif
-
-#ifndef Z_MAXFILENAMEINZIP
-#define Z_MAXFILENAMEINZIP (256)
-#endif
-
-#ifndef ALLOC
-# define ALLOC(size) (malloc(size))
-#endif
-#ifndef TRYFREE
-# define TRYFREE(p) {if (p) free(p);}
-#endif
-
-/*
-#define SIZECENTRALDIRITEM (0x2e)
-#define SIZEZIPLOCALHEADER (0x1e)
-*/
-
-/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
-
-#ifndef SEEK_CUR
-#define SEEK_CUR 1
-#endif
-
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-const char zip_copyright[] =
- " zip 0.15 Copyright 1998 Gilles Vollant ";
-
-
-#define SIZEDATA_INDATABLOCK (4096-(4*4))
-
-#define LOCALHEADERMAGIC (0x04034b50)
-#define CENTRALHEADERMAGIC (0x02014b50)
-#define ENDHEADERMAGIC (0x06054b50)
-
-#define FLAG_LOCALHEADER_OFFSET (0x06)
-#define CRC_LOCALHEADER_OFFSET (0x0e)
-
-#define SIZECENTRALHEADER (0x2e) /* 46 */
-
-typedef struct linkedlist_datablock_internal_s
-{
- struct linkedlist_datablock_internal_s* next_datablock;
- uLong avail_in_this_block;
- uLong filled_in_this_block;
- uLong unused; /* for future use and alignement */
- unsigned char data[SIZEDATA_INDATABLOCK];
-} linkedlist_datablock_internal;
-
-typedef struct linkedlist_data_s
-{
- linkedlist_datablock_internal* first_block;
- linkedlist_datablock_internal* last_block;
-} linkedlist_data;
-
-
-typedef struct
-{
- z_stream stream; /* zLib stream structure for inflate */
- int stream_initialised; /* 1 is stream is initialised */
- uInt pos_in_buffered_data; /* last written byte in buffered_data */
-
- uLong pos_local_header; /* offset of the local header of the file
- currenty writing */
- char* central_header; /* central header data for the current file */
- uLong size_centralheader; /* size of the central header for cur file */
- uLong flag; /* flag of the file currently writing */
-
- int method; /* compression method of file currenty wr.*/
- Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
- uLong dosDate;
- uLong crc32;
-} curfile_info;
-
-typedef struct
-{
- FILE * filezip;
- linkedlist_data central_dir;/* datablock with central dir in construction*/
- int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/
- curfile_info ci; /* info on the file curretly writing */
-
- uLong begin_pos; /* position of the beginning of the zipfile */
- uLong number_entry;
-} zip_internal;
-
-local linkedlist_datablock_internal* allocate_new_datablock()
-{
- linkedlist_datablock_internal* ldi;
- ldi = (linkedlist_datablock_internal*)
- ALLOC(sizeof(linkedlist_datablock_internal));
- if (ldi!=NULL)
- {
- ldi->next_datablock = NULL ;
- ldi->filled_in_this_block = 0 ;
- ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
- }
- return ldi;
-}
-
-local void free_datablock(ldi)
- linkedlist_datablock_internal* ldi;
-{
- while (ldi!=NULL)
- {
- linkedlist_datablock_internal* ldinext = ldi->next_datablock;
- TRYFREE(ldi);
- ldi = ldinext;
- }
-}
-
-local void init_linkedlist(ll)
- linkedlist_data* ll;
-{
- ll->first_block = ll->last_block = NULL;
-}
-
-local void free_linkedlist(ll)
- linkedlist_data* ll;
-{
- free_datablock(ll->first_block);
- ll->first_block = ll->last_block = NULL;
-}
-
-
-local int add_data_in_datablock(ll,buf,len)
- linkedlist_data* ll;
- const void* buf;
- uLong len;
-{
- linkedlist_datablock_internal* ldi;
- const unsigned char* from_copy;
-
- if (ll==NULL)
- return ZIP_INTERNALERROR;
-
- if (ll->last_block == NULL)
- {
- ll->first_block = ll->last_block = allocate_new_datablock();
- if (ll->first_block == NULL)
- return ZIP_INTERNALERROR;
- }
-
- ldi = ll->last_block;
- from_copy = (unsigned char*)buf;
-
- while (len>0)
- {
- uInt copy_this;
- uInt i;
- unsigned char* to_copy;
-
- if (ldi->avail_in_this_block==0)
- {
- ldi->next_datablock = allocate_new_datablock();
- if (ldi->next_datablock == NULL)
- return ZIP_INTERNALERROR;
- ldi = ldi->next_datablock ;
- ll->last_block = ldi;
- }
-
- if (ldi->avail_in_this_block < len)
- copy_this = (uInt)ldi->avail_in_this_block;
- else
- copy_this = (uInt)len;
-
- to_copy = &(ldi->data[ldi->filled_in_this_block]);
-
- for (i=0;i<copy_this;i++)
- *(to_copy+i)=*(from_copy+i);
-
- ldi->filled_in_this_block += copy_this;
- ldi->avail_in_this_block -= copy_this;
- from_copy += copy_this ;
- len -= copy_this;
- }
- return ZIP_OK;
-}
-
-
-local int write_datablock(fout,ll)
- FILE * fout;
- linkedlist_data* ll;
-{
- linkedlist_datablock_internal* ldi;
- ldi = ll->first_block;
- while (ldi!=NULL)
- {
- if (ldi->filled_in_this_block > 0)
- if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,1,fout)!=1)
- return ZIP_ERRNO;
- ldi = ldi->next_datablock;
- }
- return ZIP_OK;
-}
-
-/****************************************************************************/
-
-/* ===========================================================================
- Outputs a long in LSB order to the given file
- nbByte == 1, 2 or 4 (byte, short or long)
-*/
-
-local int ziplocal_putValue OF((FILE *file, uLong x, int nbByte));
-local int ziplocal_putValue (file, x, nbByte)
- FILE *file;
- uLong x;
- int nbByte;
-{
- unsigned char buf[4];
- int n;
- for (n = 0; n < nbByte; n++) {
- buf[n] = (unsigned char)(x & 0xff);
- x >>= 8;
- }
- if (fwrite(buf,nbByte,1,file)!=1)
- return ZIP_ERRNO;
- else
- return ZIP_OK;
-}
-
-local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte));
-local void ziplocal_putValue_inmemory (dest, x, nbByte)
- void* dest;
- uLong x;
- int nbByte;
-{
- unsigned char* buf=(unsigned char*)dest;
- int n;
- for (n = 0; n < nbByte; n++) {
- buf[n] = (unsigned char)(x & 0xff);
- x >>= 8;
- }
-}
-/****************************************************************************/
-
-
-local uLong ziplocal_TmzDateToDosDate(ptm,dosDate)
- tm_zip* ptm;
- uLong dosDate;
-{
- uLong year = (uLong)ptm->tm_year;
- if (year>1980)
- year-=1980;
- else if (year>80)
- year-=80;
- return
- (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
- ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
-}
-
-
-/****************************************************************************/
-
-extern zipFile ZEXPORT zipOpen (pathname, append)
- const char *pathname;
- int append;
-{
- zip_internal ziinit;
- zip_internal* zi;
-
- ziinit.filezip = fopen(pathname,(append == 0) ? "wb" : "ab");
- if (ziinit.filezip == NULL)
- return NULL;
- ziinit.begin_pos = ftell(ziinit.filezip);
- ziinit.in_opened_file_inzip = 0;
- ziinit.ci.stream_initialised = 0;
- ziinit.number_entry = 0;
- init_linkedlist(&(ziinit.central_dir));
-
-
- zi = (zip_internal*)ALLOC(sizeof(zip_internal));
- if (zi==NULL)
- {
- fclose(ziinit.filezip);
- return NULL;
- }
-
- *zi = ziinit;
- return (zipFile)zi;
-}
-
-extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi,
- extrafield_local, size_extrafield_local,
- extrafield_global, size_extrafield_global,
- comment, method, level)
- zipFile file;
- const char* filename;
- const zip_fileinfo* zipfi;
- const void* extrafield_local;
- uInt size_extrafield_local;
- const void* extrafield_global;
- uInt size_extrafield_global;
- const char* comment;
- int method;
- int level;
-{
- zip_internal* zi;
- uInt size_filename;
- uInt size_comment;
- uInt i;
- int err = ZIP_OK;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
- if ((method!=0) && (method!=Z_DEFLATED))
- return ZIP_PARAMERROR;
-
- zi = (zip_internal*)file;
-
- if (zi->in_opened_file_inzip == 1)
- {
- err = zipCloseFileInZip (file);
- if (err != ZIP_OK)
- return err;
- }
-
-
- if (filename==NULL)
- filename="-";
-
- if (comment==NULL)
- size_comment = 0;
- else
- size_comment = strlen(comment);
-
- size_filename = strlen(filename);
-
- if (zipfi == NULL)
- zi->ci.dosDate = 0;
- else
- {
- if (zipfi->dosDate != 0)
- zi->ci.dosDate = zipfi->dosDate;
- else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate);
- }
-
- zi->ci.flag = 0;
- if ((level==8) || (level==9))
- zi->ci.flag |= 2;
- if ((level==2))
- zi->ci.flag |= 4;
- if ((level==1))
- zi->ci.flag |= 6;
-
- zi->ci.crc32 = 0;
- zi->ci.method = method;
- zi->ci.stream_initialised = 0;
- zi->ci.pos_in_buffered_data = 0;
- zi->ci.pos_local_header = ftell(zi->filezip);
- zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename +
- size_extrafield_global + size_comment;
- zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader);
-
- ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
- /* version info */
- ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
- ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
- ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
- ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
- ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
- ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
-
- if (zipfi==NULL)
- ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
- else
- ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
-
- if (zipfi==NULL)
- ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
- else
- ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
-
- ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header,4);
-
- for (i=0;i<size_filename;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
-
- for (i=0;i<size_extrafield_global;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
- *(((const char*)extrafield_global)+i);
-
- for (i=0;i<size_comment;i++)
- *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
- size_extrafield_global+i) = *(filename+i);
- if (zi->ci.central_header == NULL)
- return ZIP_INTERNALERROR;
-
- /* write the local header */
- err = ziplocal_putValue(zi->filezip,(uLong)LOCALHEADERMAGIC,4);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)20,2);/* version needed to extract */
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.flag,2);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.method,2);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.dosDate,4);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* crc 32, unknown */
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* compressed size, unknown */
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* uncompressed size, unknown */
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)size_filename,2);
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)size_extrafield_local,2);
-
- if ((err==ZIP_OK) && (size_filename>0))
- if (fwrite(filename,(uInt)size_filename,1,zi->filezip)!=1)
- err = ZIP_ERRNO;
-
- if ((err==ZIP_OK) && (size_extrafield_local>0))
- if (fwrite(extrafield_local,(uInt)size_extrafield_local,1,zi->filezip)
- !=1)
- err = ZIP_ERRNO;
-
- zi->ci.stream.avail_in = (uInt)0;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- zi->ci.stream.total_in = 0;
- zi->ci.stream.total_out = 0;
-
- if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED))
- {
- zi->ci.stream.zalloc = (alloc_func)0;
- zi->ci.stream.zfree = (free_func)0;
- zi->ci.stream.opaque = (voidpf)0;
-
- err = deflateInit2(&zi->ci.stream, level,
- Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0);
-
- if (err==Z_OK)
- zi->ci.stream_initialised = 1;
- }
-
-
- if (err==Z_OK)
- zi->in_opened_file_inzip = 1;
- return err;
-}
-
-extern int ZEXPORT zipWriteInFileInZip (file, buf, len)
- zipFile file;
- const voidp buf;
- unsigned len;
-{
- zip_internal* zi;
- int err=ZIP_OK;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
-
- if (zi->in_opened_file_inzip == 0)
- return ZIP_PARAMERROR;
-
- zi->ci.stream.next_in = buf;
- zi->ci.stream.avail_in = len;
- zi->ci.crc32 = crc32(zi->ci.crc32,buf,len);
-
- while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
- {
- if (zi->ci.stream.avail_out == 0)
- {
- if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
- !=1)
- err = ZIP_ERRNO;
- zi->ci.pos_in_buffered_data = 0;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- }
-
- if (zi->ci.method == Z_DEFLATED)
- {
- uLong uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_NO_FLUSH);
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
-
- }
- else
- {
- uInt copy_this,i;
- if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
- copy_this = zi->ci.stream.avail_in;
- else
- copy_this = zi->ci.stream.avail_out;
- for (i=0;i<copy_this;i++)
- *(((char*)zi->ci.stream.next_out)+i) =
- *(((const char*)zi->ci.stream.next_in)+i);
- {
- zi->ci.stream.avail_in -= copy_this;
- zi->ci.stream.avail_out-= copy_this;
- zi->ci.stream.next_in+= copy_this;
- zi->ci.stream.next_out+= copy_this;
- zi->ci.stream.total_in+= copy_this;
- zi->ci.stream.total_out+= copy_this;
- zi->ci.pos_in_buffered_data += copy_this;
- }
- }
- }
-
- return 0;
-}
-
-extern int ZEXPORT zipCloseFileInZip (file)
- zipFile file;
-{
- zip_internal* zi;
- int err=ZIP_OK;
-
- if (file == NULL)
- return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
-
- if (zi->in_opened_file_inzip == 0)
- return ZIP_PARAMERROR;
- zi->ci.stream.avail_in = 0;
-
- if (zi->ci.method == Z_DEFLATED)
- while (err==ZIP_OK)
- {
- uLong uTotalOutBefore;
- if (zi->ci.stream.avail_out == 0)
- {
- if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
- !=1)
- err = ZIP_ERRNO;
- zi->ci.pos_in_buffered_data = 0;
- zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
- zi->ci.stream.next_out = zi->ci.buffered_data;
- }
- uTotalOutBefore = zi->ci.stream.total_out;
- err=deflate(&zi->ci.stream, Z_FINISH);
- zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
- }
-
- if (err==Z_STREAM_END)
- err=ZIP_OK; /* this is normal */
-
- if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
- if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip)
- !=1)
- err = ZIP_ERRNO;
-
- if ((zi->ci.method == Z_DEFLATED) && (err==ZIP_OK))
- {
- err=deflateEnd(&zi->ci.stream);
- zi->ci.stream_initialised = 0;
- }
-
- ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)zi->ci.crc32,4); /*crc*/
- ziplocal_putValue_inmemory(zi->ci.central_header+20,
- (uLong)zi->ci.stream.total_out,4); /*compr size*/
- ziplocal_putValue_inmemory(zi->ci.central_header+24,
- (uLong)zi->ci.stream.total_in,4); /*uncompr size*/
-
- if (err==ZIP_OK)
- err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header,
- (uLong)zi->ci.size_centralheader);
- free(zi->ci.central_header);
-
- if (err==ZIP_OK)
- {
- long cur_pos_inzip = ftell(zi->filezip);
- if (fseek(zi->filezip,
- zi->ci.pos_local_header + 14,SEEK_SET)!=0)
- err = ZIP_ERRNO;
-
- if (err==ZIP_OK)
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.crc32,4); /* crc 32, unknown */
-
- if (err==ZIP_OK) /* compressed size, unknown */
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_out,4);
-
- if (err==ZIP_OK) /* uncompressed size, unknown */
- err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_in,4);
-
- if (fseek(zi->filezip,
- cur_pos_inzip,SEEK_SET)!=0)
- err = ZIP_ERRNO;
- }
-
- zi->number_entry ++;
- zi->in_opened_file_inzip = 0;
-
- return err;
-}
-
-extern int ZEXPORT zipClose (file, global_comment)
- zipFile file;
- const char* global_comment;
-{
- zip_internal* zi;
- int err = 0;
- uLong size_centraldir = 0;
- uLong centraldir_pos_inzip ;
- uInt size_global_comment;
- if (file == NULL)
- return ZIP_PARAMERROR;
- zi = (zip_internal*)file;
-
- if (zi->in_opened_file_inzip == 1)
- {
- err = zipCloseFileInZip (file);
- }
-
- if (global_comment==NULL)
- size_global_comment = 0;
- else
- size_global_comment = strlen(global_comment);
-
-
- centraldir_pos_inzip = ftell(zi->filezip);
- if (err==ZIP_OK)
- {
- linkedlist_datablock_internal* ldi = zi->central_dir.first_block ;
- while (ldi!=NULL)
- {
- if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
- if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,
- 1,zi->filezip) !=1 )
- err = ZIP_ERRNO;
-
- size_centraldir += ldi->filled_in_this_block;
- ldi = ldi->next_datablock;
- }
- }
- free_datablock(zi->central_dir.first_block);
-
- if (err==ZIP_OK) /* Magic End */
- err = ziplocal_putValue(zi->filezip,(uLong)ENDHEADERMAGIC,4);
-
- if (err==ZIP_OK) /* number of this disk */
- err = ziplocal_putValue(zi->filezip,(uLong)0,2);
-
- if (err==ZIP_OK) /* number of the disk with the start of the central directory */
- err = ziplocal_putValue(zi->filezip,(uLong)0,2);
-
- if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
- err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
-
- if (err==ZIP_OK) /* total number of entries in the central dir */
- err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2);
-
- if (err==ZIP_OK) /* size of the central directory */
- err = ziplocal_putValue(zi->filezip,(uLong)size_centraldir,4);
-
- if (err==ZIP_OK) /* offset of start of central directory with respect to the
- starting disk number */
- err = ziplocal_putValue(zi->filezip,(uLong)centraldir_pos_inzip ,4);
-
- if (err==ZIP_OK) /* zipfile comment length */
- err = ziplocal_putValue(zi->filezip,(uLong)size_global_comment,2);
-
- if ((err==ZIP_OK) && (size_global_comment>0))
- if (fwrite(global_comment,(uInt)size_global_comment,1,zi->filezip) !=1 )
- err = ZIP_ERRNO;
- fclose(zi->filezip);
- TRYFREE(zi);
-
- return err;
-}
+++ /dev/null
- zipOpen @80
- zipOpenNewFileInZip @81
- zipWriteInFileInZip @82
- zipCloseFileInZip @83
- zipClose @84
+++ /dev/null
-/* zip.h -- IO for compress .zip files using zlib
- Version 0.15 alpha, Mar 19th, 1998,
-
- Copyright (C) 1998 Gilles Vollant
-
- This unzip package allow creates .ZIP file, compatible with PKZip 2.04g
- WinZip, InfoZip tools and compatible.
- Encryption and multi volume ZipFile (span) are not supported.
- Old compressions used by old PKZip 1.x are not supported
-
- For uncompress .zip file, look at unzip.h
-
- THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
- CAN CHANGE IN FUTURE VERSION !!
- I WAIT FEEDBACK at mail info@winimage.com
- Visit also http://www.winimage.com/zLibDll/zip.htm for evolution
-
- Condition of use and distribution are the same than zlib :
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
-
-*/
-
-/* for more info about .ZIP format, see
- ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
- PkWare has also a specification at :
- ftp://ftp.pkware.com/probdesc.zip
-*/
-
-#ifndef _zip_H
-#define _zip_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _ZLIB_H
-#include "zlib.h"
-#endif
-
-#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
-/* like the STRICT of WIN32, we define a pointer that cannot be converted
- from (void*) without cast */
-typedef struct TagzipFile__ { int unused; } zipFile__;
-typedef zipFile__ *zipFile;
-#else
-typedef voidp zipFile;
-#endif
-
-#define ZIP_OK (0)
-#define ZIP_ERRNO (Z_ERRNO)
-#define ZIP_PARAMERROR (-102)
-#define ZIP_INTERNALERROR (-104)
-
-/* tm_zip contain date/time info */
-typedef struct tm_zip_s
-{
- uInt tm_sec; /* seconds after the minute - [0,59] */
- uInt tm_min; /* minutes after the hour - [0,59] */
- uInt tm_hour; /* hours since midnight - [0,23] */
- uInt tm_mday; /* day of the month - [1,31] */
- uInt tm_mon; /* months since January - [0,11] */
- uInt tm_year; /* years - [1980..2044] */
-} tm_zip;
-
-typedef struct
-{
- tm_zip tmz_date; /* date in understandable format */
- uLong dosDate; /* if dos_date == 0, tmu_date is used */
-/* uLong flag; */ /* general purpose bit flag 2 bytes */
-
- uLong internal_fa; /* internal file attributes 2 bytes */
- uLong external_fa; /* external file attributes 4 bytes */
-} zip_fileinfo;
-
-extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
-/*
- Create a zipfile.
- pathname contain on Windows NT a filename like "c:\\zlib\\zlib111.zip" or on
- an Unix computer "zlib/zlib111.zip".
- if the file pathname exist and append=1, the zip will be created at the end
- of the file. (useful if the file contain a self extractor code)
- If the zipfile cannot be opened, the return value is NULL.
- Else, the return value is a zipFile Handle, usable with other function
- of this zip package.
-
-
-*/
-
-extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
- const char* filename,
- const zip_fileinfo* zipfi,
- const void* extrafield_local,
- uInt size_extrafield_local,
- const void* extrafield_global,
- uInt size_extrafield_global,
- const char* comment,
- int method,
- int level));
-/*
- Open a file in the ZIP for writing.
- filename : the filename in zip (if NULL, '-' without quote will be used
- *zipfi contain supplemental information
- if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
- contains the extrafield data the the local header
- if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
- contains the extrafield data the the local header
- if comment != NULL, comment contain the comment string
- method contain the compression method (0 for store, Z_DEFLATED for deflate)
- level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
-*/
-
-extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
- const voidp buf,
- unsigned len));
-/*
- Write data in the zipfile
-*/
-
-extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
-/*
- Close the current file in the zipfile
-*/
-
-extern int ZEXPORT zipClose OF((zipFile file,
- const char* global_comment));
-/*
- Close the zipfile
-*/
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _zip_H */
+++ /dev/null
-LIBRARY "zlib"
-
-DESCRIPTION '"""zlib data compression library"""'
-
-
-VERSION 1.11
-
-
-HEAPSIZE 1048576,8192
-
-EXPORTS
- adler32 @1
- compress @2
- crc32 @3
- deflate @4
- deflateCopy @5
- deflateEnd @6
- deflateInit2_ @7
- deflateInit_ @8
- deflateParams @9
- deflateReset @10
- deflateSetDictionary @11
- gzclose @12
- gzdopen @13
- gzerror @14
- gzflush @15
- gzopen @16
- gzread @17
- gzwrite @18
- inflate @19
- inflateEnd @20
- inflateInit2_ @21
- inflateInit_ @22
- inflateReset @23
- inflateSetDictionary @24
- inflateSync @25
- uncompress @26
- zlibVersion @27
- gzprintf @28
- gzputc @29
- gzgetc @30
- gzseek @31
- gzrewind @32
- gztell @33
- gzeof @34
- gzsetparams @35
- zError @36
- inflateSyncPoint @37
- get_crc_table @38
- compress2 @39
- gzputs @40
- gzgets @41
-
- unzOpen @61
- unzClose @62
- unzGetGlobalInfo @63
- unzGetCurrentFileInfo @64
- unzGoToFirstFile @65
- unzGoToNextFile @66
- unzOpenCurrentFile @67
- unzReadCurrentFile @68
- unztell @70
- unzeof @71
- unzCloseCurrentFile @72
- unzGetGlobalComment @73
- unzStringFileNameCompare @74
- unzLocateFile @75
- unzGetLocalExtrafield @76
-
- zipOpen @80
- zipOpenNewFileInZip @81
- zipWriteInFileInZip @82
- zipCloseFileInZip @83
- zipClose @84
+++ /dev/null
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-DEP_CPP_TREES=\
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-DEP_CPP_ZUTIL=\
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-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
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+++ /dev/null
-CC=cc
-CFLAGS=-g
-
-untgz: untgz.o ../../libz.a
- $(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz
-
-untgz.o: untgz.c ../../zlib.h
- $(CC) $(CFLAGS) -c -I../.. untgz.c
-
-../../libz.a:
- cd ../..; make
-
-clean:
- rm -f untgz untgz.o *~
+++ /dev/null
-# Makefile for zlib. Modified for mingw32
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile,
-#
-# make -fmakefile.w32
-#
-
-CC=gcc
-
-# Generate dependencies (see end of the file)
-
-CPPFLAGS=-MMD
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is not found, replace with copy /Y .
-CP=cp -f
-
-# The default value of RM is "rm -f."
-# If "rm.exe" is not found, uncomment:
-# RM=del
-
-LD=gcc
-LDLIBS=-L. -lz
-LDFLAGS=-s
-
-
-INCL=zlib.h zconf.h
-LIBS=libz.a
-
-AR=ar rcs
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o \
- inffast.o
-
-TEST_OBJS = minigzip.o untgz.o
-
-all: minigzip.exe untgz.exe
-
-rebuild: clean all
-
-libz.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $(LDFLAGS) -o $@ $< $(LDLIBS)
-
-.PHONY : clean
-
-clean:
- $(RM) *.d *.o *.exe libz.a foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
-
+++ /dev/null
-/*
- * untgz.c -- Display contents and/or extract file from
- * a gzip'd TAR file
- * written by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
- * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <errno.h>
-#include <fcntl.h>
-#ifdef unix
-# include <unistd.h>
-#else
-# include <direct.h>
-# include <io.h>
-#endif
-
-#include "zlib.h"
-
-#ifdef WIN32
-# ifndef F_OK
-# define F_OK (0)
-# endif
-# ifdef _MSC_VER
-# define mkdir(dirname,mode) _mkdir(dirname)
-# define strdup(str) _strdup(str)
-# define unlink(fn) _unlink(fn)
-# define access(path,mode) _access(path,mode)
-# else
-# define mkdir(dirname,mode) _mkdir(dirname)
-# endif
-#else
-# include <utime.h>
-#endif
-
-
-/* Values used in typeflag field. */
-
-#define REGTYPE '0' /* regular file */
-#define AREGTYPE '\0' /* regular file */
-#define LNKTYPE '1' /* link */
-#define SYMTYPE '2' /* reserved */
-#define CHRTYPE '3' /* character special */
-#define BLKTYPE '4' /* block special */
-#define DIRTYPE '5' /* directory */
-#define FIFOTYPE '6' /* FIFO special */
-#define CONTTYPE '7' /* reserved */
-
-#define BLOCKSIZE 512
-
-struct tar_header
-{ /* byte offset */
- char name[100]; /* 0 */
- char mode[8]; /* 100 */
- char uid[8]; /* 108 */
- char gid[8]; /* 116 */
- char size[12]; /* 124 */
- char mtime[12]; /* 136 */
- char chksum[8]; /* 148 */
- char typeflag; /* 156 */
- char linkname[100]; /* 157 */
- char magic[6]; /* 257 */
- char version[2]; /* 263 */
- char uname[32]; /* 265 */
- char gname[32]; /* 297 */
- char devmajor[8]; /* 329 */
- char devminor[8]; /* 337 */
- char prefix[155]; /* 345 */
- /* 500 */
-};
-
-union tar_buffer {
- char buffer[BLOCKSIZE];
- struct tar_header header;
-};
-
-enum { TGZ_EXTRACT = 0, TGZ_LIST };
-
-static char *TGZfname OF((const char *));
-void TGZnotfound OF((const char *));
-
-int getoct OF((char *, int));
-char *strtime OF((time_t *));
-int ExprMatch OF((char *,char *));
-
-int makedir OF((char *));
-int matchname OF((int,int,char **,char *));
-
-void error OF((const char *));
-int tar OF((gzFile, int, int, int, char **));
-
-void help OF((int));
-int main OF((int, char **));
-
-char *prog;
-
-/* This will give a benign warning */
-
-static char *TGZprefix[] = { "\0", ".tgz", ".tar.gz", ".tar", NULL };
-
-/* Return the real name of the TGZ archive */
-/* or NULL if it does not exist. */
-
-static char *TGZfname OF((const char *fname))
-{
- static char buffer[1024];
- int origlen,i;
-
- strcpy(buffer,fname);
- origlen = strlen(buffer);
-
- for (i=0; TGZprefix[i]; i++)
- {
- strcpy(buffer+origlen,TGZprefix[i]);
- if (access(buffer,F_OK) == 0)
- return buffer;
- }
- return NULL;
-}
-
-/* error message for the filename */
-
-void TGZnotfound OF((const char *fname))
-{
- int i;
-
- fprintf(stderr,"%s : couldn't find ",prog);
- for (i=0;TGZprefix[i];i++)
- fprintf(stderr,(TGZprefix[i+1]) ? "%s%s, " : "or %s%s\n",
- fname,
- TGZprefix[i]);
- exit(1);
-}
-
-
-/* help functions */
-
-int getoct(char *p,int width)
-{
- int result = 0;
- char c;
-
- while (width --)
- {
- c = *p++;
- if (c == ' ')
- continue;
- if (c == 0)
- break;
- result = result * 8 + (c - '0');
- }
- return result;
-}
-
-char *strtime (time_t *t)
-{
- struct tm *local;
- static char result[32];
-
- local = localtime(t);
- sprintf(result,"%2d/%02d/%4d %02d:%02d:%02d",
- local->tm_mday, local->tm_mon+1, local->tm_year+1900,
- local->tm_hour, local->tm_min, local->tm_sec);
- return result;
-}
-
-
-/* regular expression matching */
-
-#define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
-
-int ExprMatch(char *string,char *expr)
-{
- while (1)
- {
- if (ISSPECIAL(*expr))
- {
- if (*expr == '/')
- {
- if (*string != '\\' && *string != '/')
- return 0;
- string ++; expr++;
- }
- else if (*expr == '*')
- {
- if (*expr ++ == 0)
- return 1;
- while (*++string != *expr)
- if (*string == 0)
- return 0;
- }
- }
- else
- {
- if (*string != *expr)
- return 0;
- if (*expr++ == 0)
- return 1;
- string++;
- }
- }
-}
-
-/* recursive make directory */
-/* abort if you get an ENOENT errno somewhere in the middle */
-/* e.g. ignore error "mkdir on existing directory" */
-/* */
-/* return 1 if OK */
-/* 0 on error */
-
-int makedir (char *newdir)
-{
- char *buffer = strdup(newdir);
- char *p;
- int len = strlen(buffer);
-
- if (len <= 0) {
- free(buffer);
- return 0;
- }
- if (buffer[len-1] == '/') {
- buffer[len-1] = '\0';
- }
- if (mkdir(buffer, 0775) == 0)
- {
- free(buffer);
- return 1;
- }
-
- p = buffer+1;
- while (1)
- {
- char hold;
-
- while(*p && *p != '\\' && *p != '/')
- p++;
- hold = *p;
- *p = 0;
- if ((mkdir(buffer, 0775) == -1) && (errno == ENOENT))
- {
- fprintf(stderr,"%s: couldn't create directory %s\n",prog,buffer);
- free(buffer);
- return 0;
- }
- if (hold == 0)
- break;
- *p++ = hold;
- }
- free(buffer);
- return 1;
-}
-
-int matchname (int arg,int argc,char **argv,char *fname)
-{
- if (arg == argc) /* no arguments given (untgz tgzarchive) */
- return 1;
-
- while (arg < argc)
- if (ExprMatch(fname,argv[arg++]))
- return 1;
-
- return 0; /* ignore this for the moment being */
-}
-
-
-/* Tar file list or extract */
-
-int tar (gzFile in,int action,int arg,int argc,char **argv)
-{
- union tar_buffer buffer;
- int len;
- int err;
- int getheader = 1;
- int remaining = 0;
- FILE *outfile = NULL;
- char fname[BLOCKSIZE];
- time_t tartime;
-
- if (action == TGZ_LIST)
- printf(" day time size file\n"
- " ---------- -------- --------- -------------------------------------\n");
- while (1)
- {
- len = gzread(in, &buffer, BLOCKSIZE);
- if (len < 0)
- error (gzerror(in, &err));
- /*
- * Always expect complete blocks to process
- * the tar information.
- */
- if (len != BLOCKSIZE)
- error("gzread: incomplete block read");
-
- /*
- * If we have to get a tar header
- */
- if (getheader == 1)
- {
- /*
- * if we met the end of the tar
- * or the end-of-tar block,
- * we are done
- */
- if ((len == 0) || (buffer.header.name[0]== 0)) break;
-
- tartime = (time_t)getoct(buffer.header.mtime,12);
- strcpy(fname,buffer.header.name);
-
- switch (buffer.header.typeflag)
- {
- case DIRTYPE:
- if (action == TGZ_LIST)
- printf(" %s <dir> %s\n",strtime(&tartime),fname);
- if (action == TGZ_EXTRACT)
- makedir(fname);
- break;
- case REGTYPE:
- case AREGTYPE:
- remaining = getoct(buffer.header.size,12);
- if (action == TGZ_LIST)
- printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
- if (action == TGZ_EXTRACT)
- {
- if ((remaining) && (matchname(arg,argc,argv,fname)))
- {
- outfile = fopen(fname,"wb");
- if (outfile == NULL) {
- /* try creating directory */
- char *p = strrchr(fname, '/');
- if (p != NULL) {
- *p = '\0';
- makedir(fname);
- *p = '/';
- outfile = fopen(fname,"wb");
- }
- }
- fprintf(stderr,
- "%s %s\n",
- (outfile) ? "Extracting" : "Couldn't create",
- fname);
- }
- else
- outfile = NULL;
- }
- /*
- * could have no contents
- */
- getheader = (remaining) ? 0 : 1;
- break;
- default:
- if (action == TGZ_LIST)
- printf(" %s <---> %s\n",strtime(&tartime),fname);
- break;
- }
- }
- else
- {
- unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
-
- if ((action == TGZ_EXTRACT) && (outfile != NULL))
- {
- if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
- {
- fprintf(stderr,"%s : error writing %s skipping...\n",prog,fname);
- fclose(outfile);
- unlink(fname);
- }
- }
- remaining -= bytes;
- if (remaining == 0)
- {
- getheader = 1;
- if ((action == TGZ_EXTRACT) && (outfile != NULL))
- {
-#ifdef WIN32
- HANDLE hFile;
- FILETIME ftm,ftLocal;
- SYSTEMTIME st;
- struct tm localt;
-
- fclose(outfile);
-
- localt = *localtime(&tartime);
-
- hFile = CreateFile(fname, GENERIC_READ | GENERIC_WRITE,
- 0, NULL, OPEN_EXISTING, 0, NULL);
-
- st.wYear = (WORD)localt.tm_year+1900;
- st.wMonth = (WORD)localt.tm_mon;
- st.wDayOfWeek = (WORD)localt.tm_wday;
- st.wDay = (WORD)localt.tm_mday;
- st.wHour = (WORD)localt.tm_hour;
- st.wMinute = (WORD)localt.tm_min;
- st.wSecond = (WORD)localt.tm_sec;
- st.wMilliseconds = 0;
- SystemTimeToFileTime(&st,&ftLocal);
- LocalFileTimeToFileTime(&ftLocal,&ftm);
- SetFileTime(hFile,&ftm,NULL,&ftm);
- CloseHandle(hFile);
-
- outfile = NULL;
-#else
- struct utimbuf settime;
-
- settime.actime = settime.modtime = tartime;
-
- fclose(outfile);
- outfile = NULL;
- utime(fname,&settime);
-#endif
- }
- }
- }
- }
-
- if (gzclose(in) != Z_OK)
- error("failed gzclose");
-
- return 0;
-}
-
-
-/* =========================================================== */
-
-void help(int exitval)
-{
- fprintf(stderr,
- "untgz v 0.1\n"
- " an sample application of zlib 1.0.4\n\n"
- "Usage : untgz TGZfile to extract all files\n"
- " untgz TGZfile fname ... to extract selected files\n"
- " untgz -l TGZfile to list archive contents\n"
- " untgz -h to display this help\n\n");
- exit(exitval);
-}
-
-void error(const char *msg)
-{
- fprintf(stderr, "%s: %s\n", prog, msg);
- exit(1);
-}
-
-
-/* ====================================================================== */
-
-int _CRT_glob = 0; /* disable globbing of the arguments */
-
-int main(int argc,char **argv)
-{
- int action = TGZ_EXTRACT;
- int arg = 1;
- char *TGZfile;
- gzFile *f;
-
-
- prog = strrchr(argv[0],'\\');
- if (prog == NULL)
- {
- prog = strrchr(argv[0],'/');
- if (prog == NULL)
- {
- prog = strrchr(argv[0],':');
- if (prog == NULL)
- prog = argv[0];
- else
- prog++;
- }
- else
- prog++;
- }
- else
- prog++;
-
- if (argc == 1)
- help(0);
-
- if (strcmp(argv[arg],"-l") == 0)
- {
- action = TGZ_LIST;
- if (argc == ++arg)
- help(0);
- }
- else if (strcmp(argv[arg],"-h") == 0)
- {
- help(0);
- }
-
- if ((TGZfile = TGZfname(argv[arg])) == NULL)
- TGZnotfound(argv[arg]);
-
- ++arg;
- if ((action == TGZ_LIST) && (arg != argc))
- help(1);
-
-/*
- * Process the TGZ file
- */
- switch(action)
- {
- case TGZ_LIST:
- case TGZ_EXTRACT:
- f = gzopen(TGZfile,"rb");
- if (f == NULL)
- {
- fprintf(stderr,"%s: Couldn't gzopen %s\n",
- prog,
- TGZfile);
- return 1;
- }
- exit(tar(f, action, arg, argc, argv));
- break;
-
- default:
- error("Unknown option!");
- exit(1);
- }
-
- return 0;
-}
+++ /dev/null
-See below some functions declarations for Visual Basic.
-
-Frequently Asked Question:
-
-Q: Each time I use the compress function I get the -5 error (not enough
- room in the output buffer).
-
-A: Make sure that the length of the compressed buffer is passed by
- reference ("as any"), not by value ("as long"). Also check that
- before the call of compress this length is equal to the total size of
- the compressed buffer and not zero.
-
-
-From: "Jon Caruana" <jon-net@usa.net>
-Subject: Re: How to port zlib declares to vb?
-Date: Mon, 28 Oct 1996 18:33:03 -0600
-
-Got the answer! (I haven't had time to check this but it's what I got, and
-looks correct):
-
-He has the following routines working:
- compress
- uncompress
- gzopen
- gzwrite
- gzread
- gzclose
-
-Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form)
-
-#If Win16 Then 'Use Win16 calls.
-Declare Function compress Lib "ZLIB.DLL" (ByVal compr As
- String, comprLen As Any, ByVal buf As String, ByVal buflen
- As Long) As Integer
-Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr
- As String, uncomprLen As Any, ByVal compr As String, ByVal
- lcompr As Long) As Integer
-Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As
- String, ByVal mode As String) As Long
-Declare Function gzread Lib "ZLIB.DLL" (ByVal file As
- Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
- As Integer
-Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As
- Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
- As Integer
-Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As
- Long) As Integer
-#Else
-Declare Function compress Lib "ZLIB32.DLL"
- (ByVal compr As String, comprLen As Any, ByVal buf As
- String, ByVal buflen As Long) As Integer
-Declare Function uncompress Lib "ZLIB32.DLL"
- (ByVal uncompr As String, uncomprLen As Any, ByVal compr As
- String, ByVal lcompr As Long) As Long
-Declare Function gzopen Lib "ZLIB32.DLL"
- (ByVal file As String, ByVal mode As String) As Long
-Declare Function gzread Lib "ZLIB32.DLL"
- (ByVal file As Long, ByVal uncompr As String, ByVal
- uncomprLen As Long) As Long
-Declare Function gzwrite Lib "ZLIB32.DLL"
- (ByVal file As Long, ByVal uncompr As String, ByVal
- uncomprLen As Long) As Long
-Declare Function gzclose Lib "ZLIB32.DLL"
- (ByVal file As Long) As Long
-#End If
-
--Jon Caruana
-jon-net@usa.net
-Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member
+++ /dev/null
-/* crc32.c -- compute the CRC-32 of a data stream
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: crc32.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "zlib.h"
-
-#define local static
-
-#ifdef DYNAMIC_CRC_TABLE
-
-local int crc_table_empty = 1;
-local uLongf crc_table[256];
-local void make_crc_table OF((void));
-
-/*
- Generate a table for a byte-wise 32-bit CRC calculation on the polynomial:
- x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
-
- Polynomials over GF(2) are represented in binary, one bit per coefficient,
- with the lowest powers in the most significant bit. Then adding polynomials
- is just exclusive-or, and multiplying a polynomial by x is a right shift by
- one. If we call the above polynomial p, and represent a byte as the
- polynomial q, also with the lowest power in the most significant bit (so the
- byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
- where a mod b means the remainder after dividing a by b.
-
- This calculation is done using the shift-register method of multiplying and
- taking the remainder. The register is initialized to zero, and for each
- incoming bit, x^32 is added mod p to the register if the bit is a one (where
- x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
- x (which is shifting right by one and adding x^32 mod p if the bit shifted
- out is a one). We start with the highest power (least significant bit) of
- q and repeat for all eight bits of q.
-
- The table is simply the CRC of all possible eight bit values. This is all
- the information needed to generate CRC's on data a byte at a time for all
- combinations of CRC register values and incoming bytes.
-*/
-local void make_crc_table()
-{
- uLong c;
- int n, k;
- uLong poly; /* polynomial exclusive-or pattern */
- /* terms of polynomial defining this crc (except x^32): */
- static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
-
- /* make exclusive-or pattern from polynomial (0xedb88320L) */
- poly = 0L;
- for (n = 0; n < sizeof(p)/sizeof(Byte); n++)
- poly |= 1L << (31 - p[n]);
-
- for (n = 0; n < 256; n++)
- {
- c = (uLong)n;
- for (k = 0; k < 8; k++)
- c = c & 1 ? poly ^ (c >> 1) : c >> 1;
- crc_table[n] = c;
- }
- crc_table_empty = 0;
-}
-#else
-/* ========================================================================
- * Table of CRC-32's of all single-byte values (made by make_crc_table)
- */
-local const uLongf crc_table[256] = {
- 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
- 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
- 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
- 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
- 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
- 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
- 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
- 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
- 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
- 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
- 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
- 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
- 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
- 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
- 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
- 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
- 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
- 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
- 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
- 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
- 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
- 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
- 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
- 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
- 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
- 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
- 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
- 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
- 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
- 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
- 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
- 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
- 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
- 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
- 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
- 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
- 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
- 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
- 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
- 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
- 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
- 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
- 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
- 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
- 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
- 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
- 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
- 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
- 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
- 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
- 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
- 0x2d02ef8dL
-};
-#endif
-
-/* =========================================================================
- * This function can be used by asm versions of crc32()
- */
-const uLongf * ZEXPORT get_crc_table()
-{
-#ifdef DYNAMIC_CRC_TABLE
- if (crc_table_empty) make_crc_table();
-#endif
- return (const uLongf *)crc_table;
-}
-
-/* ========================================================================= */
-#define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);
-#define DO2(buf) DO1(buf); DO1(buf);
-#define DO4(buf) DO2(buf); DO2(buf);
-#define DO8(buf) DO4(buf); DO4(buf);
-
-/* ========================================================================= */
-uLong ZEXPORT crc32(crc, buf, len)
- uLong crc;
- const Bytef *buf;
- uInt len;
-{
- if (buf == Z_NULL) return 0L;
-#ifdef DYNAMIC_CRC_TABLE
- if (crc_table_empty)
- make_crc_table();
-#endif
- crc = crc ^ 0xffffffffL;
- while (len >= 8)
- {
- DO8(buf);
- len -= 8;
- }
- if (len) do {
- DO1(buf);
- } while (--len);
- return crc ^ 0xffffffffL;
-}
+++ /dev/null
-/* deflate.c -- compress data using the deflation algorithm
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * ALGORITHM
- *
- * The "deflation" process depends on being able to identify portions
- * of the input text which are identical to earlier input (within a
- * sliding window trailing behind the input currently being processed).
- *
- * The most straightforward technique turns out to be the fastest for
- * most input files: try all possible matches and select the longest.
- * The key feature of this algorithm is that insertions into the string
- * dictionary are very simple and thus fast, and deletions are avoided
- * completely. Insertions are performed at each input character, whereas
- * string matches are performed only when the previous match ends. So it
- * is preferable to spend more time in matches to allow very fast string
- * insertions and avoid deletions. The matching algorithm for small
- * strings is inspired from that of Rabin & Karp. A brute force approach
- * is used to find longer strings when a small match has been found.
- * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
- * (by Leonid Broukhis).
- * A previous version of this file used a more sophisticated algorithm
- * (by Fiala and Greene) which is guaranteed to run in linear amortized
- * time, but has a larger average cost, uses more memory and is patented.
- * However the F&G algorithm may be faster for some highly redundant
- * files if the parameter max_chain_length (described below) is too large.
- *
- * ACKNOWLEDGEMENTS
- *
- * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
- * I found it in 'freeze' written by Leonid Broukhis.
- * Thanks to many people for bug reports and testing.
- *
- * REFERENCES
- *
- * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
- * Available in ftp://ds.internic.net/rfc/rfc1951.txt
- *
- * A description of the Rabin and Karp algorithm is given in the book
- * "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
- *
- * Fiala,E.R., and Greene,D.H.
- * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
- *
- */
-
-/* @(#) $Id: deflate.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "deflate.h"
-
-const char deflate_copyright[] =
- " deflate 1.1.3 Copyright 1995-1998 Jean-loup Gailly ";
-/*
- If you use the zlib library in a product, an acknowledgment is welcome
- in the documentation of your product. If for some reason you cannot
- include such an acknowledgment, I would appreciate that you keep this
- copyright string in the executable of your product.
- */
-
-/* ===========================================================================
- * Function prototypes.
- */
-typedef enum {
- need_more, /* block not completed, need more input or more output */
- block_done, /* block flush performed */
- finish_started, /* finish started, need only more output at next deflate */
- finish_done /* finish done, accept no more input or output */
-} block_state;
-
-typedef block_state (*compress_func) OF((deflate_state *s, int flush));
-/* Compression function. Returns the block state after the call. */
-
-local void fill_window OF((deflate_state *s));
-local block_state deflate_stored OF((deflate_state *s, int flush));
-local block_state deflate_fast OF((deflate_state *s, int flush));
-local block_state deflate_slow OF((deflate_state *s, int flush));
-local void lm_init OF((deflate_state *s));
-local void putShortMSB OF((deflate_state *s, uInt b));
-local void flush_pending OF((z_streamp strm));
-local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size));
-#ifdef ASMV
- void match_init OF((void)); /* asm code initialization */
- uInt longest_match OF((deflate_state *s, IPos cur_match));
-#else
-local uInt longest_match OF((deflate_state *s, IPos cur_match));
-#endif
-
-#ifdef DEBUG
-local void check_match OF((deflate_state *s, IPos start, IPos match,
- int length));
-#endif
-
-/* ===========================================================================
- * Local data
- */
-
-#define NIL 0
-/* Tail of hash chains */
-
-#ifndef TOO_FAR
-# define TOO_FAR 4096
-#endif
-/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-/* Values for max_lazy_match, good_match and max_chain_length, depending on
- * the desired pack level (0..9). The values given below have been tuned to
- * exclude worst case performance for pathological files. Better values may be
- * found for specific files.
- */
-typedef struct config_s {
- ush good_length; /* reduce lazy search above this match length */
- ush max_lazy; /* do not perform lazy search above this match length */
- ush nice_length; /* quit search above this match length */
- ush max_chain;
- compress_func func;
-} config;
-
-local const config configuration_table[10] = {
-/* good lazy nice chain */
-/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */
-/* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */
-/* 2 */ {4, 5, 16, 8, deflate_fast},
-/* 3 */ {4, 6, 32, 32, deflate_fast},
-
-/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */
-/* 5 */ {8, 16, 32, 32, deflate_slow},
-/* 6 */ {8, 16, 128, 128, deflate_slow},
-/* 7 */ {8, 32, 128, 256, deflate_slow},
-/* 8 */ {32, 128, 258, 1024, deflate_slow},
-/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */
-
-/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
- * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
- * meaning.
- */
-
-#define EQUAL 0
-/* result of memcmp for equal strings */
-
-struct static_tree_desc_s {int dummy;}; /* for buggy compilers */
-
-/* ===========================================================================
- * Update a hash value with the given input byte
- * IN assertion: all calls to to UPDATE_HASH are made with consecutive
- * input characters, so that a running hash key can be computed from the
- * previous key instead of complete recalculation each time.
- */
-#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
-
-
-/* ===========================================================================
- * Insert string str in the dictionary and set match_head to the previous head
- * of the hash chain (the most recent string with same hash key). Return
- * the previous length of the hash chain.
- * If this file is compiled with -DFASTEST, the compression level is forced
- * to 1, and no hash chains are maintained.
- * IN assertion: all calls to to INSERT_STRING are made with consecutive
- * input characters and the first MIN_MATCH bytes of str are valid
- * (except for the last MIN_MATCH-1 bytes of the input file).
- */
-#ifdef FASTEST
-#define INSERT_STRING(s, str, match_head) \
- (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
- match_head = s->head[s->ins_h], \
- s->head[s->ins_h] = (Pos)(str))
-#else
-#define INSERT_STRING(s, str, match_head) \
- (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
- s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \
- s->head[s->ins_h] = (Pos)(str))
-#endif
-
-/* ===========================================================================
- * Initialize the hash table (avoiding 64K overflow for 16 bit systems).
- * prev[] will be initialized on the fly.
- */
-#define CLEAR_HASH(s) \
- s->head[s->hash_size-1] = NIL; \
- zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
-
-/* ========================================================================= */
-int ZEXPORT deflateInit_(strm, level, version, stream_size)
- z_streamp strm;
- int level;
- const char *version;
- int stream_size;
-{
- return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
- Z_DEFAULT_STRATEGY, version, stream_size);
- /* To do: ignore strm->next_in if we use it as window */
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
- version, stream_size)
- z_streamp strm;
- int level;
- int method;
- int windowBits;
- int memLevel;
- int strategy;
- const char *version;
- int stream_size;
-{
- deflate_state *s;
- int noheader = 0;
- static const char* my_version = ZLIB_VERSION;
-
- ushf *overlay;
- /* We overlay pending_buf and d_buf+l_buf. This works since the average
- * output size for (length,distance) codes is <= 24 bits.
- */
-
- if (version == Z_NULL || version[0] != my_version[0] ||
- stream_size != sizeof(z_stream)) {
- return Z_VERSION_ERROR;
- }
- if (strm == Z_NULL) return Z_STREAM_ERROR;
-
- strm->msg = Z_NULL;
- if (strm->zalloc == Z_NULL) {
- strm->zalloc = zcalloc;
- strm->opaque = (voidpf)0;
- }
- if (strm->zfree == Z_NULL) strm->zfree = zcfree;
-
- if (level == Z_DEFAULT_COMPRESSION) level = 6;
-#ifdef FASTEST
- level = 1;
-#endif
-
- if (windowBits < 0) { /* undocumented feature: suppress zlib header */
- noheader = 1;
- windowBits = -windowBits;
- }
- if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
- windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
- strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
- return Z_STREAM_ERROR;
- }
- s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
- if (s == Z_NULL) return Z_MEM_ERROR;
- strm->state = (struct internal_state FAR *)s;
- s->strm = strm;
-
- s->noheader = noheader;
- s->w_bits = windowBits;
- s->w_size = 1 << s->w_bits;
- s->w_mask = s->w_size - 1;
-
- s->hash_bits = memLevel + 7;
- s->hash_size = 1 << s->hash_bits;
- s->hash_mask = s->hash_size - 1;
- s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
-
- s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
- s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos));
- s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos));
-
- s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
-
- overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
- s->pending_buf = (uchf *) overlay;
- s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
-
- if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
- s->pending_buf == Z_NULL) {
- strm->msg = (char*)ERR_MSG(Z_MEM_ERROR);
- deflateEnd (strm);
- return Z_MEM_ERROR;
- }
- s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
- s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
-
- s->level = level;
- s->strategy = strategy;
- s->method = (Byte)method;
-
- return deflateReset(strm);
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
- z_streamp strm;
- const Bytef *dictionary;
- uInt dictLength;
-{
- deflate_state *s;
- uInt length = dictLength;
- uInt n;
- IPos hash_head = 0;
-
- if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL ||
- strm->state->status != INIT_STATE) return Z_STREAM_ERROR;
-
- s = strm->state;
- strm->adler = adler32(strm->adler, dictionary, dictLength);
-
- if (length < MIN_MATCH) return Z_OK;
- if (length > MAX_DIST(s)) {
- length = MAX_DIST(s);
-#ifndef USE_DICT_HEAD
- dictionary += dictLength - length; /* use the tail of the dictionary */
-#endif
- }
- zmemcpy(s->window, dictionary, length);
- s->strstart = length;
- s->block_start = (long)length;
-
- /* Insert all strings in the hash table (except for the last two bytes).
- * s->lookahead stays null, so s->ins_h will be recomputed at the next
- * call of fill_window.
- */
- s->ins_h = s->window[0];
- UPDATE_HASH(s, s->ins_h, s->window[1]);
- for (n = 0; n <= length - MIN_MATCH; n++) {
- INSERT_STRING(s, n, hash_head);
- }
- if (hash_head) hash_head = 0; /* to make compiler happy */
- return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateReset (strm)
- z_streamp strm;
-{
- deflate_state *s;
-
- if (strm == Z_NULL || strm->state == Z_NULL ||
- strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR;
-
- strm->total_in = strm->total_out = 0;
- strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
- strm->data_type = Z_UNKNOWN;
-
- s = (deflate_state *)strm->state;
- s->pending = 0;
- s->pending_out = s->pending_buf;
-
- if (s->noheader < 0) {
- s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */
- }
- s->status = s->noheader ? BUSY_STATE : INIT_STATE;
- strm->adler = 1;
- s->last_flush = Z_NO_FLUSH;
-
- _tr_init(s);
- lm_init(s);
-
- return Z_OK;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateParams(strm, level, strategy)
- z_streamp strm;
- int level;
- int strategy;
-{
- deflate_state *s;
- compress_func func;
- int err = Z_OK;
-
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
- s = strm->state;
-
- if (level == Z_DEFAULT_COMPRESSION) {
- level = 6;
- }
- if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) {
- return Z_STREAM_ERROR;
- }
- func = configuration_table[s->level].func;
-
- if (func != configuration_table[level].func && strm->total_in != 0) {
- /* Flush the last buffer: */
- err = deflate(strm, Z_PARTIAL_FLUSH);
- }
- if (s->level != level) {
- s->level = level;
- s->max_lazy_match = configuration_table[level].max_lazy;
- s->good_match = configuration_table[level].good_length;
- s->nice_match = configuration_table[level].nice_length;
- s->max_chain_length = configuration_table[level].max_chain;
- }
- s->strategy = strategy;
- return err;
-}
-
-/* =========================================================================
- * Put a short in the pending buffer. The 16-bit value is put in MSB order.
- * IN assertion: the stream state is correct and there is enough room in
- * pending_buf.
- */
-local void putShortMSB (s, b)
- deflate_state *s;
- uInt b;
-{
- put_byte(s, (Byte)(b >> 8));
- put_byte(s, (Byte)(b & 0xff));
-}
-
-/* =========================================================================
- * Flush as much pending output as possible. All deflate() output goes
- * through this function so some applications may wish to modify it
- * to avoid allocating a large strm->next_out buffer and copying into it.
- * (See also read_buf()).
- */
-local void flush_pending(strm)
- z_streamp strm;
-{
- unsigned len = strm->state->pending;
-
- if (len > strm->avail_out) len = strm->avail_out;
- if (len == 0) return;
-
- zmemcpy(strm->next_out, strm->state->pending_out, len);
- strm->next_out += len;
- strm->state->pending_out += len;
- strm->total_out += len;
- strm->avail_out -= len;
- strm->state->pending -= len;
- if (strm->state->pending == 0) {
- strm->state->pending_out = strm->state->pending_buf;
- }
-}
-
-/* ========================================================================= */
-int ZEXPORT deflate (strm, flush)
- z_streamp strm;
- int flush;
-{
- int old_flush; /* value of flush param for previous deflate call */
- deflate_state *s;
-
- if (strm == Z_NULL || strm->state == Z_NULL ||
- flush > Z_FINISH || flush < 0) {
- return Z_STREAM_ERROR;
- }
- s = strm->state;
-
- if (strm->next_out == Z_NULL ||
- (strm->next_in == Z_NULL && strm->avail_in != 0) ||
- (s->status == FINISH_STATE && flush != Z_FINISH)) {
- ERR_RETURN(strm, Z_STREAM_ERROR);
- }
- if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
-
- s->strm = strm; /* just in case */
- old_flush = s->last_flush;
- s->last_flush = flush;
-
- /* Write the zlib header */
- if (s->status == INIT_STATE) {
-
- uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
- uInt level_flags = (s->level-1) >> 1;
-
- if (level_flags > 3) level_flags = 3;
- header |= (level_flags << 6);
- if (s->strstart != 0) header |= PRESET_DICT;
- header += 31 - (header % 31);
-
- s->status = BUSY_STATE;
- putShortMSB(s, header);
-
- /* Save the adler32 of the preset dictionary: */
- if (s->strstart != 0) {
- putShortMSB(s, (uInt)(strm->adler >> 16));
- putShortMSB(s, (uInt)(strm->adler & 0xffff));
- }
- strm->adler = 1L;
- }
-
- /* Flush as much pending output as possible */
- if (s->pending != 0) {
- flush_pending(strm);
- if (strm->avail_out == 0) {
- /* Since avail_out is 0, deflate will be called again with
- * more output space, but possibly with both pending and
- * avail_in equal to zero. There won't be anything to do,
- * but this is not an error situation so make sure we
- * return OK instead of BUF_ERROR at next call of deflate:
- */
- s->last_flush = -1;
- return Z_OK;
- }
-
- /* Make sure there is something to do and avoid duplicate consecutive
- * flushes. For repeated and useless calls with Z_FINISH, we keep
- * returning Z_STREAM_END instead of Z_BUFF_ERROR.
- */
- } else if (strm->avail_in == 0 && flush <= old_flush &&
- flush != Z_FINISH) {
- ERR_RETURN(strm, Z_BUF_ERROR);
- }
-
- /* User must not provide more input after the first FINISH: */
- if (s->status == FINISH_STATE && strm->avail_in != 0) {
- ERR_RETURN(strm, Z_BUF_ERROR);
- }
-
- /* Start a new block or continue the current one.
- */
- if (strm->avail_in != 0 || s->lookahead != 0 ||
- (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
- block_state bstate;
-
- bstate = (*(configuration_table[s->level].func))(s, flush);
-
- if (bstate == finish_started || bstate == finish_done) {
- s->status = FINISH_STATE;
- }
- if (bstate == need_more || bstate == finish_started) {
- if (strm->avail_out == 0) {
- s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
- }
- return Z_OK;
- /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
- * of deflate should use the same flush parameter to make sure
- * that the flush is complete. So we don't have to output an
- * empty block here, this will be done at next call. This also
- * ensures that for a very small output buffer, we emit at most
- * one empty block.
- */
- }
- if (bstate == block_done) {
- if (flush == Z_PARTIAL_FLUSH) {
- _tr_align(s);
- } else { /* FULL_FLUSH or SYNC_FLUSH */
- _tr_stored_block(s, (char*)0, 0L, 0);
- /* For a full flush, this empty block will be recognized
- * as a special marker by inflate_sync().
- */
- if (flush == Z_FULL_FLUSH) {
- CLEAR_HASH(s); /* forget history */
- }
- }
- flush_pending(strm);
- if (strm->avail_out == 0) {
- s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
- return Z_OK;
- }
- }
- }
- Assert(strm->avail_out > 0, "bug2");
-
- if (flush != Z_FINISH) return Z_OK;
- if (s->noheader) return Z_STREAM_END;
-
- /* Write the zlib trailer (adler32) */
- putShortMSB(s, (uInt)(strm->adler >> 16));
- putShortMSB(s, (uInt)(strm->adler & 0xffff));
- flush_pending(strm);
- /* If avail_out is zero, the application will call deflate again
- * to flush the rest.
- */
- s->noheader = -1; /* write the trailer only once! */
- return s->pending != 0 ? Z_OK : Z_STREAM_END;
-}
-
-/* ========================================================================= */
-int ZEXPORT deflateEnd (strm)
- z_streamp strm;
-{
- int status;
-
- if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR;
-
- status = strm->state->status;
- if (status != INIT_STATE && status != BUSY_STATE &&
- status != FINISH_STATE) {
- return Z_STREAM_ERROR;
- }
-
- /* Deallocate in reverse order of allocations: */
- TRY_FREE(strm, strm->state->pending_buf);
- TRY_FREE(strm, strm->state->head);
- TRY_FREE(strm, strm->state->prev);
- TRY_FREE(strm, strm->state->window);
-
- ZFREE(strm, strm->state);
- strm->state = Z_NULL;
-
- return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
-}
-
-/* =========================================================================
- * Copy the source state to the destination state.
- * To simplify the source, this is not supported for 16-bit MSDOS (which
- * doesn't have enough memory anyway to duplicate compression states).
- */
-int ZEXPORT deflateCopy (dest, source)
- z_streamp dest;
- z_streamp source;
-{
-#ifdef MAXSEG_64K
- return Z_STREAM_ERROR;
-#else
- deflate_state *ds;
- deflate_state *ss;
- ushf *overlay;
-
-
- if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) {
- return Z_STREAM_ERROR;
- }
-
- ss = source->state;
-
- *dest = *source;
-
- ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
- if (ds == Z_NULL) return Z_MEM_ERROR;
- dest->state = (struct internal_state FAR *) ds;
- *ds = *ss;
- ds->strm = dest;
-
- ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
- ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos));
- ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos));
- overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
- ds->pending_buf = (uchf *) overlay;
-
- if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
- ds->pending_buf == Z_NULL) {
- deflateEnd (dest);
- return Z_MEM_ERROR;
- }
- /* following zmemcpy do not work for 16-bit MSDOS */
- zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
- zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos));
- zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos));
- zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
-
- ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
- ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
- ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
-
- ds->l_desc.dyn_tree = ds->dyn_ltree;
- ds->d_desc.dyn_tree = ds->dyn_dtree;
- ds->bl_desc.dyn_tree = ds->bl_tree;
-
- return Z_OK;
-#endif
-}
-
-/* ===========================================================================
- * Read a new buffer from the current input stream, update the adler32
- * and total number of bytes read. All deflate() input goes through
- * this function so some applications may wish to modify it to avoid
- * allocating a large strm->next_in buffer and copying from it.
- * (See also flush_pending()).
- */
-local int read_buf(strm, buf, size)
- z_streamp strm;
- Bytef *buf;
- unsigned size;
-{
- unsigned len = strm->avail_in;
-
- if (len > size) len = size;
- if (len == 0) return 0;
-
- strm->avail_in -= len;
-
- if (!strm->state->noheader) {
- strm->adler = adler32(strm->adler, strm->next_in, len);
- }
- zmemcpy(buf, strm->next_in, len);
- strm->next_in += len;
- strm->total_in += len;
-
- return (int)len;
-}
-
-/* ===========================================================================
- * Initialize the "longest match" routines for a new zlib stream
- */
-local void lm_init (s)
- deflate_state *s;
-{
- s->window_size = (ulg)2L*s->w_size;
-
- CLEAR_HASH(s);
-
- /* Set the default configuration parameters:
- */
- s->max_lazy_match = configuration_table[s->level].max_lazy;
- s->good_match = configuration_table[s->level].good_length;
- s->nice_match = configuration_table[s->level].nice_length;
- s->max_chain_length = configuration_table[s->level].max_chain;
-
- s->strstart = 0;
- s->block_start = 0L;
- s->lookahead = 0;
- s->match_length = s->prev_length = MIN_MATCH-1;
- s->match_available = 0;
- s->ins_h = 0;
-#ifdef ASMV
- match_init(); /* initialize the asm code */
-#endif
-}
-
-/* ===========================================================================
- * Set match_start to the longest match starting at the given string and
- * return its length. Matches shorter or equal to prev_length are discarded,
- * in which case the result is equal to prev_length and match_start is
- * garbage.
- * IN assertions: cur_match is the head of the hash chain for the current
- * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
- * OUT assertion: the match length is not greater than s->lookahead.
- */
-#ifndef ASMV
-/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
- * match.S. The code will be functionally equivalent.
- */
-#ifndef FASTEST
-local uInt longest_match(s, cur_match)
- deflate_state *s;
- IPos cur_match; /* current match */
-{
- unsigned chain_length = s->max_chain_length;/* max hash chain length */
- register Bytef *scan = s->window + s->strstart; /* current string */
- register Bytef *match; /* matched string */
- register int len; /* length of current match */
- int best_len = s->prev_length; /* best match length so far */
- int nice_match = s->nice_match; /* stop if match long enough */
- IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
- s->strstart - (IPos)MAX_DIST(s) : NIL;
- /* Stop when cur_match becomes <= limit. To simplify the code,
- * we prevent matches with the string of window index 0.
- */
- Posf *prev = s->prev;
- uInt wmask = s->w_mask;
-
-#ifdef UNALIGNED_OK
- /* Compare two bytes at a time. Note: this is not always beneficial.
- * Try with and without -DUNALIGNED_OK to check.
- */
- register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
- register ush scan_start = *(ushf*)scan;
- register ush scan_end = *(ushf*)(scan+best_len-1);
-#else
- register Bytef *strend = s->window + s->strstart + MAX_MATCH;
- register Byte scan_end1 = scan[best_len-1];
- register Byte scan_end = scan[best_len];
-#endif
-
- /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
- * It is easy to get rid of this optimization if necessary.
- */
- Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
- /* Do not waste too much time if we already have a good match: */
- if (s->prev_length >= s->good_match) {
- chain_length >>= 2;
- }
- /* Do not look for matches beyond the end of the input. This is necessary
- * to make deflate deterministic.
- */
- if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
- Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
- do {
- Assert(cur_match < s->strstart, "no future");
- match = s->window + cur_match;
-
- /* Skip to next match if the match length cannot increase
- * or if the match length is less than 2:
- */
-#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
- /* This code assumes sizeof(unsigned short) == 2. Do not use
- * UNALIGNED_OK if your compiler uses a different size.
- */
- if (*(ushf*)(match+best_len-1) != scan_end ||
- *(ushf*)match != scan_start) continue;
-
- /* It is not necessary to compare scan[2] and match[2] since they are
- * always equal when the other bytes match, given that the hash keys
- * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
- * strstart+3, +5, ... up to strstart+257. We check for insufficient
- * lookahead only every 4th comparison; the 128th check will be made
- * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
- * necessary to put more guard bytes at the end of the window, or
- * to check more often for insufficient lookahead.
- */
- Assert(scan[2] == match[2], "scan[2]?");
- scan++, match++;
- do {
- } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
- scan < strend);
- /* The funny "do {}" generates better code on most compilers */
-
- /* Here, scan <= window+strstart+257 */
- Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
- if (*scan == *match) scan++;
-
- len = (MAX_MATCH - 1) - (int)(strend-scan);
- scan = strend - (MAX_MATCH-1);
-
-#else /* UNALIGNED_OK */
-
- if (match[best_len] != scan_end ||
- match[best_len-1] != scan_end1 ||
- *match != *scan ||
- *++match != scan[1]) continue;
-
- /* The check at best_len-1 can be removed because it will be made
- * again later. (This heuristic is not always a win.)
- * It is not necessary to compare scan[2] and match[2] since they
- * are always equal when the other bytes match, given that
- * the hash keys are equal and that HASH_BITS >= 8.
- */
- scan += 2, match++;
- Assert(*scan == *match, "match[2]?");
-
- /* We check for insufficient lookahead only every 8th comparison;
- * the 256th check will be made at strstart+258.
- */
- do {
- } while (*++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- scan < strend);
-
- Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
- len = MAX_MATCH - (int)(strend - scan);
- scan = strend - MAX_MATCH;
-
-#endif /* UNALIGNED_OK */
-
- if (len > best_len) {
- s->match_start = cur_match;
- best_len = len;
- if (len >= nice_match) break;
-#ifdef UNALIGNED_OK
- scan_end = *(ushf*)(scan+best_len-1);
-#else
- scan_end1 = scan[best_len-1];
- scan_end = scan[best_len];
-#endif
- }
- } while ((cur_match = prev[cur_match & wmask]) > limit
- && --chain_length != 0);
-
- if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
- return s->lookahead;
-}
-
-#else /* FASTEST */
-/* ---------------------------------------------------------------------------
- * Optimized version for level == 1 only
- */
-local uInt longest_match(s, cur_match)
- deflate_state *s;
- IPos cur_match; /* current match */
-{
- register Bytef *scan = s->window + s->strstart; /* current string */
- register Bytef *match; /* matched string */
- register int len; /* length of current match */
- register Bytef *strend = s->window + s->strstart + MAX_MATCH;
-
- /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
- * It is easy to get rid of this optimization if necessary.
- */
- Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
-
- Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
-
- Assert(cur_match < s->strstart, "no future");
-
- match = s->window + cur_match;
-
- /* Return failure if the match length is less than 2:
- */
- if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
-
- /* The check at best_len-1 can be removed because it will be made
- * again later. (This heuristic is not always a win.)
- * It is not necessary to compare scan[2] and match[2] since they
- * are always equal when the other bytes match, given that
- * the hash keys are equal and that HASH_BITS >= 8.
- */
- scan += 2, match += 2;
- Assert(*scan == *match, "match[2]?");
-
- /* We check for insufficient lookahead only every 8th comparison;
- * the 256th check will be made at strstart+258.
- */
- do {
- } while (*++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- *++scan == *++match && *++scan == *++match &&
- scan < strend);
-
- Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
-
- len = MAX_MATCH - (int)(strend - scan);
-
- if (len < MIN_MATCH) return MIN_MATCH - 1;
-
- s->match_start = cur_match;
- return len <= s->lookahead ? len : s->lookahead;
-}
-#endif /* FASTEST */
-#endif /* ASMV */
-
-#ifdef DEBUG
-/* ===========================================================================
- * Check that the match at match_start is indeed a match.
- */
-local void check_match(s, start, match, length)
- deflate_state *s;
- IPos start, match;
- int length;
-{
- /* check that the match is indeed a match */
- if (zmemcmp(s->window + match,
- s->window + start, length) != EQUAL) {
- fprintf(stderr, " start %u, match %u, length %d\n",
- start, match, length);
- do {
- fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
- } while (--length != 0);
- z_error("invalid match");
- }
- if (z_verbose > 1) {
- fprintf(stderr,"\\[%d,%d]", start-match, length);
- do { putc(s->window[start++], stderr); } while (--length != 0);
- }
-}
-#else
-# define check_match(s, start, match, length)
-#endif
-
-/* ===========================================================================
- * Fill the window when the lookahead becomes insufficient.
- * Updates strstart and lookahead.
- *
- * IN assertion: lookahead < MIN_LOOKAHEAD
- * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
- * At least one byte has been read, or avail_in == 0; reads are
- * performed for at least two bytes (required for the zip translate_eol
- * option -- not supported here).
- */
-local void fill_window(s)
- deflate_state *s;
-{
- register unsigned n, m;
- register Posf *p;
- unsigned more; /* Amount of free space at the end of the window. */
- uInt wsize = s->w_size;
-
- do {
- more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
-
- /* Deal with !@#$% 64K limit: */
- if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
- more = wsize;
-
- } else if (more == (unsigned)(-1)) {
- /* Very unlikely, but possible on 16 bit machine if strstart == 0
- * and lookahead == 1 (input done one byte at time)
- */
- more--;
-
- /* If the window is almost full and there is insufficient lookahead,
- * move the upper half to the lower one to make room in the upper half.
- */
- } else if (s->strstart >= wsize+MAX_DIST(s)) {
-
- zmemcpy(s->window, s->window+wsize, (unsigned)wsize);
- s->match_start -= wsize;
- s->strstart -= wsize; /* we now have strstart >= MAX_DIST */
- s->block_start -= (long) wsize;
-
- /* Slide the hash table (could be avoided with 32 bit values
- at the expense of memory usage). We slide even when level == 0
- to keep the hash table consistent if we switch back to level > 0
- later. (Using level 0 permanently is not an optimal usage of
- zlib, so we don't care about this pathological case.)
- */
- n = s->hash_size;
- p = &s->head[n];
- do {
- m = *--p;
- *p = (Pos)(m >= wsize ? m-wsize : NIL);
- } while (--n);
-
- n = wsize;
-#ifndef FASTEST
- p = &s->prev[n];
- do {
- m = *--p;
- *p = (Pos)(m >= wsize ? m-wsize : NIL);
- /* If n is not on any hash chain, prev[n] is garbage but
- * its value will never be used.
- */
- } while (--n);
-#endif
- more += wsize;
- }
- if (s->strm->avail_in == 0) return;
-
- /* If there was no sliding:
- * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
- * more == window_size - lookahead - strstart
- * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
- * => more >= window_size - 2*WSIZE + 2
- * In the BIG_MEM or MMAP case (not yet supported),
- * window_size == input_size + MIN_LOOKAHEAD &&
- * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
- * Otherwise, window_size == 2*WSIZE so more >= 2.
- * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
- */
- Assert(more >= 2, "more < 2");
-
- n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);
- s->lookahead += n;
-
- /* Initialize the hash value now that we have some input: */
- if (s->lookahead >= MIN_MATCH) {
- s->ins_h = s->window[s->strstart];
- UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
- Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
- }
- /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
- * but this is not important since only literal bytes will be emitted.
- */
-
- } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
-}
-
-/* ===========================================================================
- * Flush the current block, with given end-of-file flag.
- * IN assertion: strstart is set to the end of the current match.
- */
-#define FLUSH_BLOCK_ONLY(s, eof) { \
- _tr_flush_block(s, (s->block_start >= 0L ? \
- (charf *)&s->window[(unsigned)s->block_start] : \
- (charf *)Z_NULL), \
- (ulg)((long)s->strstart - s->block_start), \
- (eof)); \
- s->block_start = s->strstart; \
- flush_pending(s->strm); \
- Tracev((stderr,"[FLUSH]")); \
-}
-
-/* Same but force premature exit if necessary. */
-#define FLUSH_BLOCK(s, eof) { \
- FLUSH_BLOCK_ONLY(s, eof); \
- if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \
-}
-
-/* ===========================================================================
- * Copy without compression as much as possible from the input stream, return
- * the current block state.
- * This function does not insert new strings in the dictionary since
- * uncompressible data is probably not useful. This function is used
- * only for the level=0 compression option.
- * NOTE: this function should be optimized to avoid extra copying from
- * window to pending_buf.
- */
-local block_state deflate_stored(s, flush)
- deflate_state *s;
- int flush;
-{
- /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
- * to pending_buf_size, and each stored block has a 5 byte header:
- */
- ulg max_block_size = 0xffff;
- ulg max_start;
-
- if (max_block_size > s->pending_buf_size - 5) {
- max_block_size = s->pending_buf_size - 5;
- }
-
- /* Copy as much as possible from input to output: */
- for (;;) {
- /* Fill the window as much as possible: */
- if (s->lookahead <= 1) {
-
- Assert(s->strstart < s->w_size+MAX_DIST(s) ||
- s->block_start >= (long)s->w_size, "slide too late");
-
- fill_window(s);
- if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more;
-
- if (s->lookahead == 0) break; /* flush the current block */
- }
- Assert(s->block_start >= 0L, "block gone");
-
- s->strstart += s->lookahead;
- s->lookahead = 0;
-
- /* Emit a stored block if pending_buf will be full: */
- max_start = s->block_start + max_block_size;
- if (s->strstart == 0 || (ulg)s->strstart >= max_start) {
- /* strstart == 0 is possible when wraparound on 16-bit machine */
- s->lookahead = (uInt)(s->strstart - max_start);
- s->strstart = (uInt)max_start;
- FLUSH_BLOCK(s, 0);
- }
- /* Flush if we may have to slide, otherwise block_start may become
- * negative and the data will be gone:
- */
- if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) {
- FLUSH_BLOCK(s, 0);
- }
- }
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
-}
-
-/* ===========================================================================
- * Compress as much as possible from the input stream, return the current
- * block state.
- * This function does not perform lazy evaluation of matches and inserts
- * new strings in the dictionary only for unmatched strings or for short
- * matches. It is used only for the fast compression options.
- */
-local block_state deflate_fast(s, flush)
- deflate_state *s;
- int flush;
-{
- IPos hash_head = NIL; /* head of the hash chain */
- int bflush; /* set if current block must be flushed */
-
- for (;;) {
- /* Make sure that we always have enough lookahead, except
- * at the end of the input file. We need MAX_MATCH bytes
- * for the next match, plus MIN_MATCH bytes to insert the
- * string following the next match.
- */
- if (s->lookahead < MIN_LOOKAHEAD) {
- fill_window(s);
- if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
- return need_more;
- }
- if (s->lookahead == 0) break; /* flush the current block */
- }
-
- /* Insert the string window[strstart .. strstart+2] in the
- * dictionary, and set hash_head to the head of the hash chain:
- */
- if (s->lookahead >= MIN_MATCH) {
- INSERT_STRING(s, s->strstart, hash_head);
- }
-
- /* Find the longest match, discarding those <= prev_length.
- * At this point we have always match_length < MIN_MATCH
- */
- if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) {
- /* To simplify the code, we prevent matches with the string
- * of window index 0 (in particular we have to avoid a match
- * of the string with itself at the start of the input file).
- */
- if (s->strategy != Z_HUFFMAN_ONLY) {
- s->match_length = longest_match (s, hash_head);
- }
- /* longest_match() sets match_start */
- }
- if (s->match_length >= MIN_MATCH) {
- check_match(s, s->strstart, s->match_start, s->match_length);
-
- _tr_tally_dist(s, s->strstart - s->match_start,
- s->match_length - MIN_MATCH, bflush);
-
- s->lookahead -= s->match_length;
-
- /* Insert new strings in the hash table only if the match length
- * is not too large. This saves time but degrades compression.
- */
-#ifndef FASTEST
- if (s->match_length <= s->max_insert_length &&
- s->lookahead >= MIN_MATCH) {
- s->match_length--; /* string at strstart already in hash table */
- do {
- s->strstart++;
- INSERT_STRING(s, s->strstart, hash_head);
- /* strstart never exceeds WSIZE-MAX_MATCH, so there are
- * always MIN_MATCH bytes ahead.
- */
- } while (--s->match_length != 0);
- s->strstart++;
- } else
-#endif
- {
- s->strstart += s->match_length;
- s->match_length = 0;
- s->ins_h = s->window[s->strstart];
- UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
-#if MIN_MATCH != 3
- Call UPDATE_HASH() MIN_MATCH-3 more times
-#endif
- /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
- * matter since it will be recomputed at next deflate call.
- */
- }
- } else {
- /* No match, output a literal byte */
- Tracevv((stderr,"%c", s->window[s->strstart]));
- _tr_tally_lit (s, s->window[s->strstart], bflush);
- s->lookahead--;
- s->strstart++;
- }
- if (bflush) FLUSH_BLOCK(s, 0);
- }
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
-}
-
-/* ===========================================================================
- * Same as above, but achieves better compression. We use a lazy
- * evaluation for matches: a match is finally adopted only if there is
- * no better match at the next window position.
- */
-local block_state deflate_slow(s, flush)
- deflate_state *s;
- int flush;
-{
- IPos hash_head = NIL; /* head of hash chain */
- int bflush; /* set if current block must be flushed */
-
- /* Process the input block. */
- for (;;) {
- /* Make sure that we always have enough lookahead, except
- * at the end of the input file. We need MAX_MATCH bytes
- * for the next match, plus MIN_MATCH bytes to insert the
- * string following the next match.
- */
- if (s->lookahead < MIN_LOOKAHEAD) {
- fill_window(s);
- if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
- return need_more;
- }
- if (s->lookahead == 0) break; /* flush the current block */
- }
-
- /* Insert the string window[strstart .. strstart+2] in the
- * dictionary, and set hash_head to the head of the hash chain:
- */
- if (s->lookahead >= MIN_MATCH) {
- INSERT_STRING(s, s->strstart, hash_head);
- }
-
- /* Find the longest match, discarding those <= prev_length.
- */
- s->prev_length = s->match_length, s->prev_match = s->match_start;
- s->match_length = MIN_MATCH-1;
-
- if (hash_head != NIL && s->prev_length < s->max_lazy_match &&
- s->strstart - hash_head <= MAX_DIST(s)) {
- /* To simplify the code, we prevent matches with the string
- * of window index 0 (in particular we have to avoid a match
- * of the string with itself at the start of the input file).
- */
- if (s->strategy != Z_HUFFMAN_ONLY) {
- s->match_length = longest_match (s, hash_head);
- }
- /* longest_match() sets match_start */
-
- if (s->match_length <= 5 && (s->strategy == Z_FILTERED ||
- (s->match_length == MIN_MATCH &&
- s->strstart - s->match_start > TOO_FAR))) {
-
- /* If prev_match is also MIN_MATCH, match_start is garbage
- * but we will ignore the current match anyway.
- */
- s->match_length = MIN_MATCH-1;
- }
- }
- /* If there was a match at the previous step and the current
- * match is not better, output the previous match:
- */
- if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) {
- uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;
- /* Do not insert strings in hash table beyond this. */
-
- check_match(s, s->strstart-1, s->prev_match, s->prev_length);
-
- _tr_tally_dist(s, s->strstart -1 - s->prev_match,
- s->prev_length - MIN_MATCH, bflush);
-
- /* Insert in hash table all strings up to the end of the match.
- * strstart-1 and strstart are already inserted. If there is not
- * enough lookahead, the last two strings are not inserted in
- * the hash table.
- */
- s->lookahead -= s->prev_length-1;
- s->prev_length -= 2;
- do {
- if (++s->strstart <= max_insert) {
- INSERT_STRING(s, s->strstart, hash_head);
- }
- } while (--s->prev_length != 0);
- s->match_available = 0;
- s->match_length = MIN_MATCH-1;
- s->strstart++;
-
- if (bflush) FLUSH_BLOCK(s, 0);
-
- } else if (s->match_available) {
- /* If there was no match at the previous position, output a
- * single literal. If there was a match but the current match
- * is longer, truncate the previous match to a single literal.
- */
- Tracevv((stderr,"%c", s->window[s->strstart-1]));
- _tr_tally_lit(s, s->window[s->strstart-1], bflush);
- if (bflush) {
- FLUSH_BLOCK_ONLY(s, 0);
- }
- s->strstart++;
- s->lookahead--;
- if (s->strm->avail_out == 0) return need_more;
- } else {
- /* There is no previous match to compare with, wait for
- * the next step to decide.
- */
- s->match_available = 1;
- s->strstart++;
- s->lookahead--;
- }
- }
- Assert (flush != Z_NO_FLUSH, "no flush?");
- if (s->match_available) {
- Tracevv((stderr,"%c", s->window[s->strstart-1]));
- _tr_tally_lit(s, s->window[s->strstart-1], bflush);
- s->match_available = 0;
- }
- FLUSH_BLOCK(s, flush == Z_FINISH);
- return flush == Z_FINISH ? finish_done : block_done;
-}
+++ /dev/null
-/* deflate.h -- internal compression state
- * Copyright (C) 1995-1998 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* @(#) $Id: deflate.h,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#ifndef _DEFLATE_H
-#define _DEFLATE_H
-
-#include "zutil.h"
-
-/* ===========================================================================
- * Internal compression state.
- */
-
-#define LENGTH_CODES 29
-/* number of length codes, not counting the special END_BLOCK code */
-
-#define LITERALS 256
-/* number of literal bytes 0..255 */
-
-#define L_CODES (LITERALS+1+LENGTH_CODES)
-/* number of Literal or Length codes, including the END_BLOCK code */
-
-#define D_CODES 30
-/* number of distance codes */
-
-#define BL_CODES 19
-/* number of codes used to transfer the bit lengths */
-
-#define HEAP_SIZE (2*L_CODES+1)
-/* maximum heap size */
-
-#define MAX_BITS 15
-/* All codes must not exceed MAX_BITS bits */
-
-#define INIT_STATE 42
-#define BUSY_STATE 113
-#define FINISH_STATE 666
-/* Stream status */
-
-
-/* Data structure describing a single value and its code string. */
-typedef struct ct_data_s {
- union {
- ush freq; /* frequency count */
- ush code; /* bit string */
- } fc;
- union {
- ush dad; /* father node in Huffman tree */
- ush len; /* length of bit string */
- } dl;
-} FAR ct_data;
-
-#define Freq fc.freq
-#define Code fc.code
-#define Dad dl.dad
-#define Len dl.len
-
-typedef struct static_tree_desc_s static_tree_desc;
-
-typedef struct tree_desc_s {
- ct_data *dyn_tree; /* the dynamic tree */
- int max_code; /* largest code with non zero frequency */
- static_tree_desc *stat_desc; /* the corresponding static tree */
-} FAR tree_desc;
-
-typedef ush Pos;
-typedef Pos FAR Posf;
-typedef unsigned IPos;
-
-/* A Pos is an index in the character window. We use short instead of int to
- * save space in the various tables. IPos is used only for parameter passing.
- */
-
-typedef struct internal_state {
- z_streamp strm; /* pointer back to this zlib stream */
- int status; /* as the name implies */
- Bytef *pending_buf; /* output still pending */
- ulg pending_buf_size; /* size of pending_buf */
- Bytef *pending_out; /* next pending byte to output to the stream */
- int pending; /* nb of bytes in the pending buffer */
- int noheader; /* suppress zlib header and adler32 */
- Byte data_type; /* UNKNOWN, BINARY or ASCII */
- Byte method; /* STORED (for zip only) or DEFLATED */
- int last_flush; /* value of flush param for previous deflate call */
-
- /* used by deflate.c: */
-
- uInt w_size; /* LZ77 window size (32K by default) */
- uInt w_bits; /* log2(w_size) (8..16) */
- uInt w_mask; /* w_size - 1 */
-
- Bytef *window;
- /* Sliding window. Input bytes are read into the second half of the window,
- * and move to the first half later to keep a dictionary of at least wSize
- * bytes. With this organization, matches are limited to a distance of
- * wSize-MAX_MATCH bytes, but this ensures that IO is always
- * performed with a length multiple of the block size. Also, it limits
- * the window size to 64K, which is quite useful on MSDOS.
- * To do: use the user input buffer as sliding window.
- */
-
- ulg window_size;
- /* Actual size of window: 2*wSize, except when the user input buffer
- * is directly used as sliding window.
- */
-
- Posf *prev;
- /* Link to older string with same hash index. To limit the size of this
- * array to 64K, this link is maintained only for the last 32K strings.
- * An index in this array is thus a window index modulo 32K.
- */
-
- Posf *head; /* Heads of the hash chains or NIL. */
-
- uInt ins_h; /* hash index of string to be inserted */
- uInt hash_size; /* number of elements in hash table */
- uInt hash_bits; /* log2(hash_size) */
- uInt hash_mask; /* hash_size-1 */
-
- uInt hash_shift;
- /* Number of bits by which ins_h must be shifted at each input
- * step. It must be such that after MIN_MATCH steps, the oldest
- * byte no longer takes part in the hash key, that is:
- * hash_shift * MIN_MATCH >= hash_bits
- */
-
- long block_start;
- /* Window position at the beginning of the current output block. Gets
- * negative when the window is moved backwards.
- */
-
- uInt match_length; /* length of best match */
- IPos prev_match; /* previous match */
- int match_available; /* set if previous match exists */
- uInt strstart; /* start of string to insert */
- uInt match_start; /* start of matching string */
- uInt lookahead; /* number of valid bytes ahead in window */
-
- uInt prev_length;
- /* Length of the best match at previous step. Matches not greater than this
- * are discarded. This is used in the lazy match evaluation.
- */
-
- uInt max_chain_length;
- /* To speed up deflation, hash chains are never searched beyond this
- * length. A higher limit improves compression ratio but degrades the
- * speed.
- */
-
- uInt max_lazy_match;
- /* Attempt to find a better match only when the current match is strictly
- * smaller than this value. This mechanism is used only for compression
- * levels >= 4.
- */
-# define max_insert_length max_lazy_match
- /* Insert new strings in the hash table only if the match length is not
- * greater than this length. This saves time but degrades compression.
- * max_insert_length is used only for compression levels <= 3.
- */
-
- int level; /* compression level (1..9) */
- int strategy; /* favor or force Huffman coding*/
-
- uInt good_match;
- /* Use a faster search when the previous match is longer than this */
-
- int nice_match; /* Stop searching when current match exceeds this */
-
- /* used by trees.c: */
- /* Didn't use ct_data typedef below to supress compiler warning */
- struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
- struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
- struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
-
- struct tree_desc_s l_desc; /* desc. for literal tree */
- struct tree_desc_s d_desc; /* desc. for distance tree */
- struct tree_desc_s bl_desc; /* desc. for bit length tree */
-
- ush bl_count[MAX_BITS+1];
- /* number of codes at each bit length for an optimal tree */
-
- int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
- int heap_len; /* number of elements in the heap */
- int heap_max; /* element of largest frequency */
- /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
- * The same heap array is used to build all trees.
- */
-
- uch depth[2*L_CODES+1];
- /* Depth of each subtree used as tie breaker for trees of equal frequency
- */
-
- uchf *l_buf; /* buffer for literals or lengths */
-
- uInt lit_bufsize;
- /* Size of match buffer for literals/lengths. There are 4 reasons for
- * limiting lit_bufsize to 64K:
- * - frequencies can be kept in 16 bit counters
- * - if compression is not successful for the first block, all input
- * data is still in the window so we can still emit a stored block even
- * when input comes from standard input. (This can also be done for
- * all blocks if lit_bufsize is not greater than 32K.)
- * - if compression is not successful for a file smaller than 64K, we can
- * even emit a stored file instead of a stored block (saving 5 bytes).
- * This is applicable only for zip (not gzip or zlib).
- * - creating new Huffman trees less frequently may not provide fast
- * adaptation to changes in the input data statistics. (Take for
- * example a binary file with poorly compressible code followed by
- * a highly compressible string table.) Smaller buffer sizes give
- * fast adaptation but have of course the overhead of transmitting
- * trees more frequently.
- * - I can't count above 4
- */
-
- uInt last_lit; /* running index in l_buf */
-
- ushf *d_buf;
- /* Buffer for distances. To simplify the code, d_buf and l_buf have
- * the same number of elements. To use different lengths, an extra flag
- * array would be necessary.
- */
-
- ulg opt_len; /* bit length of current block with optimal trees */
- ulg static_len; /* bit length of current block with static trees */
- uInt matches; /* number of string matches in current block */
- int last_eob_len; /* bit length of EOB code for last block */
-
-#ifdef DEBUG
- ulg compressed_len; /* total bit length of compressed file mod 2^32 */
- ulg bits_sent; /* bit length of compressed data sent mod 2^32 */
-#endif
-
- ush bi_buf;
- /* Output buffer. bits are inserted starting at the bottom (least
- * significant bits).
- */
- int bi_valid;
- /* Number of valid bits in bi_buf. All bits above the last valid bit
- * are always zero.
- */
-
-} FAR deflate_state;
-
-/* Output a byte on the stream.
- * IN assertion: there is enough room in pending_buf.
- */
-#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);}
-
-
-#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
-/* Minimum amount of lookahead, except at the end of the input file.
- * See deflate.c for comments about the MIN_MATCH+1.
- */
-
-#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD)
-/* In order to simplify the code, particularly on 16 bit machines, match
- * distances are limited to MAX_DIST instead of WSIZE.
- */
-
- /* in trees.c */
-void _tr_init OF((deflate_state *s));
-int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
-void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
-void _tr_align OF((deflate_state *s));
-void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
-
-#define d_code(dist) \
- ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
-/* Mapping from a distance to a distance code. dist is the distance - 1 and
- * must not have side effects. _dist_code[256] and _dist_code[257] are never
- * used.
- */
-
-#ifndef DEBUG
-/* Inline versions of _tr_tally for speed: */
-
-#if defined(GEN_TREES_H) || !defined(STDC)
- extern uch _length_code[];
- extern uch _dist_code[];
-#else
- extern const uch _length_code[];
- extern const uch _dist_code[];
-#endif
-
-# define _tr_tally_lit(s, c, flush) \
- { uch cc = (c); \
- s->d_buf[s->last_lit] = 0; \
- s->l_buf[s->last_lit++] = cc; \
- s->dyn_ltree[cc].Freq++; \
- flush = (s->last_lit == s->lit_bufsize-1); \
- }
-# define _tr_tally_dist(s, distance, length, flush) \
- { uch len = (length); \
- ush dist = (distance); \
- s->d_buf[s->last_lit] = dist; \
- s->l_buf[s->last_lit++] = len; \
- dist--; \
- s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
- s->dyn_dtree[d_code(dist)].Freq++; \
- flush = (s->last_lit == s->lit_bufsize-1); \
- }
-#else
-# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
-# define _tr_tally_dist(s, distance, length, flush) \
- flush = _tr_tally(s, distance, length)
-#endif
-
-#endif
+++ /dev/null
-# descrip.mms: MMS description file for building zlib on VMS
-# written by Martin P.J. Zinser <m.zinser@gsi.de>
-
-cc_defs =
-c_deb =
-
-.ifdef __DECC__
-pref = /prefix=all
-.endif
-
-OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\
- deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\
- inftrees.obj, infcodes.obj, infutil.obj, inffast.obj
-
-CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
-
-all : example.exe minigzip.exe
- @ write sys$output " Example applications available"
-libz.olb : libz.olb($(OBJS))
- @ write sys$output " libz available"
-
-example.exe : example.obj libz.olb
- link example,libz.olb/lib
-
-minigzip.exe : minigzip.obj libz.olb
- link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
-
-clean :
- delete *.obj;*,libz.olb;*
-
-
-# Other dependencies.
-adler32.obj : zutil.h zlib.h zconf.h
-compress.obj : zlib.h zconf.h
-crc32.obj : zutil.h zlib.h zconf.h
-deflate.obj : deflate.h zutil.h zlib.h zconf.h
-example.obj : zlib.h zconf.h
-gzio.obj : zutil.h zlib.h zconf.h
-infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
-inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
-inflate.obj : zutil.h zlib.h zconf.h infblock.h
-inftrees.obj : zutil.h zlib.h zconf.h inftrees.h
-infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h
-minigzip.obj : zlib.h zconf.h
-trees.obj : deflate.h zutil.h zlib.h zconf.h
-uncompr.obj : zlib.h zconf.h
-zutil.obj : zutil.h zlib.h zconf.h
+++ /dev/null
-/* example.c -- usage example of the zlib compression library
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: example.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include <stdio.h>
-#include "zlib.h"
-
-#ifdef STDC
-# include <string.h>
-# include <stdlib.h>
-#else
- extern void exit OF((int));
-#endif
-
-#if defined(VMS) || defined(RISCOS)
-# define TESTFILE "foo-gz"
-#else
-# define TESTFILE "foo.gz"
-#endif
-
-#define CHECK_ERR(err, msg) { \
- if (err != Z_OK) { \
- fprintf(stderr, "%s error: %d\n", msg, err); \
- exit(1); \
- } \
-}
-
-const char hello[] = "hello, hello!";
-/* "hello world" would be more standard, but the repeated "hello"
- * stresses the compression code better, sorry...
- */
-
-const char dictionary[] = "hello";
-uLong dictId; /* Adler32 value of the dictionary */
-
-void test_compress OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_gzio OF((const char *out, const char *in,
- Byte *uncompr, int uncomprLen));
-void test_deflate OF((Byte *compr, uLong comprLen));
-void test_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_large_deflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_large_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_flush OF((Byte *compr, uLong *comprLen));
-void test_sync OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-void test_dict_deflate OF((Byte *compr, uLong comprLen));
-void test_dict_inflate OF((Byte *compr, uLong comprLen,
- Byte *uncompr, uLong uncomprLen));
-int main OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Test compress() and uncompress()
- */
-void test_compress(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- uLong len = strlen(hello)+1;
-
- err = compress(compr, &comprLen, (const Bytef*)hello, len);
- CHECK_ERR(err, "compress");
-
- strcpy((char*)uncompr, "garbage");
-
- err = uncompress(uncompr, &uncomprLen, compr, comprLen);
- CHECK_ERR(err, "uncompress");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad uncompress\n");
- exit(1);
- } else {
- printf("uncompress(): %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Test read/write of .gz files
- */
-void test_gzio(out, in, uncompr, uncomprLen)
- const char *out; /* compressed output file */
- const char *in; /* compressed input file */
- Byte *uncompr;
- int uncomprLen;
-{
- int err;
- int len = strlen(hello)+1;
- gzFile file;
- z_off_t pos;
-
- file = gzopen(out, "wb");
- if (file == NULL) {
- fprintf(stderr, "gzopen error\n");
- exit(1);
- }
- gzputc(file, 'h');
- if (gzputs(file, "ello") != 4) {
- fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (gzprintf(file, ", %s!", "hello") != 8) {
- fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
- exit(1);
- }
- gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
- gzclose(file);
-
- file = gzopen(in, "rb");
- if (file == NULL) {
- fprintf(stderr, "gzopen error\n");
- }
- strcpy((char*)uncompr, "garbage");
-
- uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen);
- if (uncomprLen != len) {
- fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
- exit(1);
- } else {
- printf("gzread(): %s\n", (char *)uncompr);
- }
-
- pos = gzseek(file, -8L, SEEK_CUR);
- if (pos != 6 || gztell(file) != pos) {
- fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
- (long)pos, (long)gztell(file));
- exit(1);
- }
-
- if (gzgetc(file) != ' ') {
- fprintf(stderr, "gzgetc error\n");
- exit(1);
- }
-
- gzgets(file, (char*)uncompr, uncomprLen);
- uncomprLen = strlen((char*)uncompr);
- if (uncomprLen != 6) { /* "hello!" */
- fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
- exit(1);
- }
- if (strcmp((char*)uncompr, hello+7)) {
- fprintf(stderr, "bad gzgets after gzseek\n");
- exit(1);
- } else {
- printf("gzgets() after gzseek: %s\n", (char *)uncompr);
- }
-
- gzclose(file);
-}
-
-/* ===========================================================================
- * Test deflate() with small buffers
- */
-void test_deflate(compr, comprLen)
- Byte *compr;
- uLong comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
- int len = strlen(hello)+1;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.next_out = compr;
-
- while (c_stream.total_in != (uLong)len && c_stream.total_out < comprLen) {
- c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
- }
- /* Finish the stream, still forcing small buffers: */
- for (;;) {
- c_stream.avail_out = 1;
- err = deflate(&c_stream, Z_FINISH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "deflate");
- }
-
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with small buffers
- */
-void test_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = 0;
- d_stream.next_out = uncompr;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
- d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "inflate");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad inflate\n");
- exit(1);
- } else {
- printf("inflate(): %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Test deflate() with large buffers and dynamic change of compression level
- */
-void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_BEST_SPEED);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_out = compr;
- c_stream.avail_out = (uInt)comprLen;
-
- /* At this point, uncompr is still mostly zeroes, so it should compress
- * very well:
- */
- c_stream.next_in = uncompr;
- c_stream.avail_in = (uInt)uncomprLen;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
- if (c_stream.avail_in != 0) {
- fprintf(stderr, "deflate not greedy\n");
- exit(1);
- }
-
- /* Feed in already compressed data and switch to no compression: */
- deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
- c_stream.next_in = compr;
- c_stream.avail_in = (uInt)comprLen/2;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
-
- /* Switch back to compressing mode: */
- deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
- c_stream.next_in = uncompr;
- c_stream.avail_in = (uInt)uncomprLen;
- err = deflate(&c_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "deflate");
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- fprintf(stderr, "deflate should report Z_STREAM_END\n");
- exit(1);
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with large buffers
- */
-void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = (uInt)comprLen;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- for (;;) {
- d_stream.next_out = uncompr; /* discard the output */
- d_stream.avail_out = (uInt)uncomprLen;
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- CHECK_ERR(err, "large inflate");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
- fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
- exit(1);
- } else {
- printf("large_inflate(): OK\n");
- }
-}
-
-/* ===========================================================================
- * Test deflate() with full flush
- */
-void test_flush(compr, comprLen)
- Byte *compr;
- uLong *comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
- int len = strlen(hello)+1;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.next_out = compr;
- c_stream.avail_in = 3;
- c_stream.avail_out = (uInt)*comprLen;
- err = deflate(&c_stream, Z_FULL_FLUSH);
- CHECK_ERR(err, "deflate");
-
- compr[3]++; /* force an error in first compressed block */
- c_stream.avail_in = len - 3;
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- CHECK_ERR(err, "deflate");
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-
- *comprLen = c_stream.total_out;
-}
-
-/* ===========================================================================
- * Test inflateSync()
- */
-void test_sync(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = 2; /* just read the zlib header */
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- d_stream.next_out = uncompr;
- d_stream.avail_out = (uInt)uncomprLen;
-
- inflate(&d_stream, Z_NO_FLUSH);
- CHECK_ERR(err, "inflate");
-
- d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */
- err = inflateSync(&d_stream); /* but skip the damaged part */
- CHECK_ERR(err, "inflateSync");
-
- err = inflate(&d_stream, Z_FINISH);
- if (err != Z_DATA_ERROR) {
- fprintf(stderr, "inflate should report DATA_ERROR\n");
- /* Because of incorrect adler32 */
- exit(1);
- }
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- printf("after inflateSync(): hel%s\n", (char *)uncompr);
-}
-
-/* ===========================================================================
- * Test deflate() with preset dictionary
- */
-void test_dict_deflate(compr, comprLen)
- Byte *compr;
- uLong comprLen;
-{
- z_stream c_stream; /* compression stream */
- int err;
-
- c_stream.zalloc = (alloc_func)0;
- c_stream.zfree = (free_func)0;
- c_stream.opaque = (voidpf)0;
-
- err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
- CHECK_ERR(err, "deflateInit");
-
- err = deflateSetDictionary(&c_stream,
- (const Bytef*)dictionary, sizeof(dictionary));
- CHECK_ERR(err, "deflateSetDictionary");
-
- dictId = c_stream.adler;
- c_stream.next_out = compr;
- c_stream.avail_out = (uInt)comprLen;
-
- c_stream.next_in = (Bytef*)hello;
- c_stream.avail_in = (uInt)strlen(hello)+1;
-
- err = deflate(&c_stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- fprintf(stderr, "deflate should report Z_STREAM_END\n");
- exit(1);
- }
- err = deflateEnd(&c_stream);
- CHECK_ERR(err, "deflateEnd");
-}
-
-/* ===========================================================================
- * Test inflate() with a preset dictionary
- */
-void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
- Byte *compr, *uncompr;
- uLong comprLen, uncomprLen;
-{
- int err;
- z_stream d_stream; /* decompression stream */
-
- strcpy((char*)uncompr, "garbage");
-
- d_stream.zalloc = (alloc_func)0;
- d_stream.zfree = (free_func)0;
- d_stream.opaque = (voidpf)0;
-
- d_stream.next_in = compr;
- d_stream.avail_in = (uInt)comprLen;
-
- err = inflateInit(&d_stream);
- CHECK_ERR(err, "inflateInit");
-
- d_stream.next_out = uncompr;
- d_stream.avail_out = (uInt)uncomprLen;
-
- for (;;) {
- err = inflate(&d_stream, Z_NO_FLUSH);
- if (err == Z_STREAM_END) break;
- if (err == Z_NEED_DICT) {
- if (d_stream.adler != dictId) {
- fprintf(stderr, "unexpected dictionary");
- exit(1);
- }
- err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
- sizeof(dictionary));
- }
- CHECK_ERR(err, "inflate with dict");
- }
-
- err = inflateEnd(&d_stream);
- CHECK_ERR(err, "inflateEnd");
-
- if (strcmp((char*)uncompr, hello)) {
- fprintf(stderr, "bad inflate with dict\n");
- exit(1);
- } else {
- printf("inflate with dictionary: %s\n", (char *)uncompr);
- }
-}
-
-/* ===========================================================================
- * Usage: example [output.gz [input.gz]]
- */
-
-int main(argc, argv)
- int argc;
- char *argv[];
-{
- Byte *compr, *uncompr;
- uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
- uLong uncomprLen = comprLen;
- static const char* myVersion = ZLIB_VERSION;
-
- if (zlibVersion()[0] != myVersion[0]) {
- fprintf(stderr, "incompatible zlib version\n");
- exit(1);
-
- } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
- fprintf(stderr, "warning: different zlib version\n");
- }
-
- compr = (Byte*)calloc((uInt)comprLen, 1);
- uncompr = (Byte*)calloc((uInt)uncomprLen, 1);
- /* compr and uncompr are cleared to avoid reading uninitialized
- * data and to ensure that uncompr compresses well.
- */
- if (compr == Z_NULL || uncompr == Z_NULL) {
- printf("out of memory\n");
- exit(1);
- }
- test_compress(compr, comprLen, uncompr, uncomprLen);
-
- test_gzio((argc > 1 ? argv[1] : TESTFILE),
- (argc > 2 ? argv[2] : TESTFILE),
- uncompr, (int)uncomprLen);
-
- test_deflate(compr, comprLen);
- test_inflate(compr, comprLen, uncompr, uncomprLen);
-
- test_large_deflate(compr, comprLen, uncompr, uncomprLen);
- test_large_inflate(compr, comprLen, uncompr, uncomprLen);
-
- test_flush(compr, &comprLen);
- test_sync(compr, comprLen, uncompr, uncomprLen);
- comprLen = uncomprLen;
-
- test_dict_deflate(compr, comprLen);
- test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
-
- exit(0);
- return 0; /* to avoid warning */
-}
+++ /dev/null
-/* gzio.c -- IO on .gz files
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Compile this file with -DNO_DEFLATE to avoid the compression code.
- */
-
-/* @(#) $Id: gzio.c,v 1.2 2002/12/09 00:45:34 millert Exp $ */
-
-#include <stdio.h>
-
-#include "zutil.h"
-
-struct internal_state {int dummy;}; /* for buggy compilers */
-
-#ifndef Z_BUFSIZE
-# ifdef MAXSEG_64K
-# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */
-# else
-# define Z_BUFSIZE 16384
-# endif
-#endif
-#ifndef Z_PRINTF_BUFSIZE
-# define Z_PRINTF_BUFSIZE 4096
-#endif
-
-#define ALLOC(size) malloc(size)
-#define TRYFREE(p) {if (p) free(p);}
-
-static int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
-#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define RESERVED 0xE0 /* bits 5..7: reserved */
-
-typedef struct gz_stream {
- z_stream stream;
- int z_err; /* error code for last stream operation */
- int z_eof; /* set if end of input file */
- FILE *file; /* .gz file */
- Byte *inbuf; /* input buffer */
- Byte *outbuf; /* output buffer */
- uLong crc; /* crc32 of uncompressed data */
- char *msg; /* error message */
- char *path; /* path name for debugging only */
- int transparent; /* 1 if input file is not a .gz file */
- char mode; /* 'w' or 'r' */
- long startpos; /* start of compressed data in file (header skipped) */
-} gz_stream;
-
-
-local gzFile gz_open OF((const char *path, const char *mode, int fd));
-local int do_flush OF((gzFile file, int flush));
-local int get_byte OF((gz_stream *s));
-local void check_header OF((gz_stream *s));
-local int destroy OF((gz_stream *s));
-local void putLong OF((FILE *file, uLong x));
-local uLong getLong OF((gz_stream *s));
-
-/* ===========================================================================
- Opens a gzip (.gz) file for reading or writing. The mode parameter
- is as in fopen ("rb" or "wb"). The file is given either by file descriptor
- or path name (if fd == -1).
- gz_open return NULL if the file could not be opened or if there was
- insufficient memory to allocate the (de)compression state; errno
- can be checked to distinguish the two cases (if errno is zero, the
- zlib error is Z_MEM_ERROR).
-*/
-local gzFile gz_open (path, mode, fd)
- const char *path;
- const char *mode;
- int fd;
-{
- int err;
- int level = Z_DEFAULT_COMPRESSION; /* compression level */
- int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */
- char *p = (char*)mode;
- gz_stream *s;
- char fmode[80]; /* copy of mode, without the compression level */
- char *m = fmode;
-
- if (!path || !mode) return Z_NULL;
-
- s = (gz_stream *)ALLOC(sizeof(gz_stream));
- if (!s) return Z_NULL;
-
- s->stream.zalloc = (alloc_func)0;
- s->stream.zfree = (free_func)0;
- s->stream.opaque = (voidpf)0;
- s->stream.next_in = s->inbuf = Z_NULL;
- s->stream.next_out = s->outbuf = Z_NULL;
- s->stream.avail_in = s->stream.avail_out = 0;
- s->file = NULL;
- s->z_err = Z_OK;
- s->z_eof = 0;
- s->crc = crc32(0L, Z_NULL, 0);
- s->msg = NULL;
- s->transparent = 0;
-
- s->path = (char*)ALLOC(strlen(path)+1);
- if (s->path == NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- strcpy(s->path, path); /* do this early for debugging */
-
- s->mode = '\0';
- do {
- if (*p == 'r') s->mode = 'r';
- if (*p == 'w' || *p == 'a') s->mode = 'w';
- if (*p >= '0' && *p <= '9') {
- level = *p - '0';
- } else if (*p == 'f') {
- strategy = Z_FILTERED;
- } else if (*p == 'h') {
- strategy = Z_HUFFMAN_ONLY;
- } else {
- *m++ = *p; /* copy the mode */
- }
- } while (*p++ && m != fmode + sizeof(fmode));
- if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL;
-
- if (s->mode == 'w') {
-#ifdef NO_DEFLATE
- err = Z_STREAM_ERROR;
-#else
- err = deflateInit2(&(s->stream), level,
- Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy);
- /* windowBits is passed < 0 to suppress zlib header */
-
- s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
-#endif
- if (err != Z_OK || s->outbuf == Z_NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- } else {
- s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE);
-
- err = inflateInit2(&(s->stream), -MAX_WBITS);
- /* windowBits is passed < 0 to tell that there is no zlib header.
- * Note that in this case inflate *requires* an extra "dummy" byte
- * after the compressed stream in order to complete decompression and
- * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are
- * present after the compressed stream.
- */
- if (err != Z_OK || s->inbuf == Z_NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- }
- s->stream.avail_out = Z_BUFSIZE;
-
- errno = 0;
- s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode);
-
- if (s->file == NULL) {
- return destroy(s), (gzFile)Z_NULL;
- }
- if (s->mode == 'w') {
- /* Write a very simple .gz header:
- */
- fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
- Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
- s->startpos = 10L;
- /* We use 10L instead of ftell(s->file) to because ftell causes an
- * fflush on some systems. This version of the library doesn't use
- * startpos anyway in write mode, so this initialization is not
- * necessary.
- */
- } else {
- check_header(s); /* skip the .gz header */
- s->startpos = (ftell(s->file) - s->stream.avail_in);
- }
-
- return (gzFile)s;
-}
-
-/* ===========================================================================
- Opens a gzip (.gz) file for reading or writing.
-*/
-gzFile ZEXPORT gzopen (path, mode)
- const char *path;
- const char *mode;
-{
- return gz_open (path, mode, -1);
-}
-
-/* ===========================================================================
- Associate a gzFile with the file descriptor fd. fd is not dup'ed here
- to mimic the behavio(u)r of fdopen.
-*/
-gzFile ZEXPORT gzdopen (fd, mode)
- int fd;
- const char *mode;
-{
- char name[20];
-
- if (fd < 0) return (gzFile)Z_NULL;
- sprintf(name, "<fd:%d>", fd); /* for debugging */
-
- return gz_open (name, mode, fd);
-}
-
-/* ===========================================================================
- * Update the compression level and strategy
- */
-int ZEXPORT gzsetparams (file, level, strategy)
- gzFile file;
- int level;
- int strategy;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- /* Make room to allow flushing */
- if (s->stream.avail_out == 0) {
-
- s->stream.next_out = s->outbuf;
- if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
- s->z_err = Z_ERRNO;
- }
- s->stream.avail_out = Z_BUFSIZE;
- }
-
- return deflateParams (&(s->stream), level, strategy);
-}
-
-/* ===========================================================================
- Read a byte from a gz_stream; update next_in and avail_in. Return EOF
- for end of file.
- IN assertion: the stream s has been successfully opened for reading.
-*/
-local int get_byte(s)
- gz_stream *s;
-{
- if (s->z_eof) return EOF;
- if (s->stream.avail_in == 0) {
- errno = 0;
- s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file);
- if (s->stream.avail_in == 0) {
- s->z_eof = 1;
- if (ferror(s->file)) s->z_err = Z_ERRNO;
- return EOF;
- }
- s->stream.next_in = s->inbuf;
- }
- s->stream.avail_in--;
- return *(s->stream.next_in)++;
-}
-
-/* ===========================================================================
- Check the gzip header of a gz_stream opened for reading. Set the stream
- mode to transparent if the gzip magic header is not present; set s->err
- to Z_DATA_ERROR if the magic header is present but the rest of the header
- is incorrect.
- IN assertion: the stream s has already been created successfully;
- s->stream.avail_in is zero for the first time, but may be non-zero
- for concatenated .gz files.
-*/
-local void check_header(s)
- gz_stream *s;
-{
- int method; /* method byte */
- int flags; /* flags byte */
- uInt len;
- int c;
-
- /* Check the gzip magic header */
- for (len = 0; len < 2; len++) {
- c = get_byte(s);
- if (c != gz_magic[len]) {
- if (len != 0) s->stream.avail_in++, s->stream.next_in--;
- if (c != EOF) {
- s->stream.avail_in++, s->stream.next_in--;
- s->transparent = 1;
- }
- s->z_err = s->stream.avail_in != 0 ? Z_OK : Z_STREAM_END;
- return;
- }
- }
- method = get_byte(s);
- flags = get_byte(s);
- if (method != Z_DEFLATED || (flags & RESERVED) != 0) {
- s->z_err = Z_DATA_ERROR;
- return;
- }
-
- /* Discard time, xflags and OS code: */
- for (len = 0; len < 6; len++) (void)get_byte(s);
-
- if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */
- len = (uInt)get_byte(s);
- len += ((uInt)get_byte(s))<<8;
- /* len is garbage if EOF but the loop below will quit anyway */
- while (len-- != 0 && get_byte(s) != EOF) ;
- }
- if ((flags & ORIG_NAME) != 0) { /* skip the original file name */
- while ((c = get_byte(s)) != 0 && c != EOF) ;
- }
- if ((flags & COMMENT) != 0) { /* skip the .gz file comment */
- while ((c = get_byte(s)) != 0 && c != EOF) ;
- }
- if ((flags & HEAD_CRC) != 0) { /* skip the header crc */
- for (len = 0; len < 2; len++) (void)get_byte(s);
- }
- s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK;
-}
-
- /* ===========================================================================
- * Cleanup then free the given gz_stream. Return a zlib error code.
- Try freeing in the reverse order of allocations.
- */
-local int destroy (s)
- gz_stream *s;
-{
- int err = Z_OK;
-
- if (!s) return Z_STREAM_ERROR;
-
- TRYFREE(s->msg);
-
- if (s->stream.state != NULL) {
- if (s->mode == 'w') {
-#ifdef NO_DEFLATE
- err = Z_STREAM_ERROR;
-#else
- err = deflateEnd(&(s->stream));
-#endif
- } else if (s->mode == 'r') {
- err = inflateEnd(&(s->stream));
- }
- }
- if (s->file != NULL && fclose(s->file)) {
-#ifdef ESPIPE
- if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */
-#endif
- err = Z_ERRNO;
- }
- if (s->z_err < 0) err = s->z_err;
-
- TRYFREE(s->inbuf);
- TRYFREE(s->outbuf);
- TRYFREE(s->path);
- TRYFREE(s);
- return err;
-}
-
-/* ===========================================================================
- Reads the given number of uncompressed bytes from the compressed file.
- gzread returns the number of bytes actually read (0 for end of file).
-*/
-int ZEXPORT gzread (file, buf, len)
- gzFile file;
- voidp buf;
- unsigned len;
-{
- gz_stream *s = (gz_stream*)file;
- Bytef *start = (Bytef*)buf; /* starting point for crc computation */
- Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */
-
- if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR;
-
- if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1;
- if (s->z_err == Z_STREAM_END) return 0; /* EOF */
-
- next_out = (Byte*)buf;
- s->stream.next_out = (Bytef*)buf;
- s->stream.avail_out = len;
-
- while (s->stream.avail_out != 0) {
-
- if (s->transparent) {
- /* Copy first the lookahead bytes: */
- uInt n = s->stream.avail_in;
- if (n > s->stream.avail_out) n = s->stream.avail_out;
- if (n > 0) {
- zmemcpy(s->stream.next_out, s->stream.next_in, n);
- next_out += n;
- s->stream.next_out = next_out;
- s->stream.next_in += n;
- s->stream.avail_out -= n;
- s->stream.avail_in -= n;
- }
- if (s->stream.avail_out > 0) {
- s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out,
- s->file);
- }
- len -= s->stream.avail_out;
- s->stream.total_in += (uLong)len;
- s->stream.total_out += (uLong)len;
- if (len == 0) s->z_eof = 1;
- return (int)len;
- }
- if (s->stream.avail_in == 0 && !s->z_eof) {
-
- errno = 0;
- s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file);
- if (s->stream.avail_in == 0) {
- s->z_eof = 1;
- if (ferror(s->file)) {
- s->z_err = Z_ERRNO;
- break;
- }
- }
- s->stream.next_in = s->inbuf;
- }
- s->z_err = inflate(&(s->stream), Z_NO_FLUSH);
-
- if (s->z_err == Z_STREAM_END) {
- /* Check CRC and original size */
- s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
- start = s->stream.next_out;
-
- if (getLong(s) != s->crc) {
- s->z_err = Z_DATA_ERROR;
- } else {
- (void)getLong(s);
- /* The uncompressed length returned by above getlong() may
- * be different from s->stream.total_out) in case of
- * concatenated .gz files. Check for such files:
- */
- check_header(s);
- if (s->z_err == Z_OK) {
- uLong total_in = s->stream.total_in;
- uLong total_out = s->stream.total_out;
-
- inflateReset(&(s->stream));
- s->stream.total_in = total_in;
- s->stream.total_out = total_out;
- s->crc = crc32(0L, Z_NULL, 0);
- }
- }
- }
- if (s->z_err != Z_OK || s->z_eof) break;
- }
- s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start));
-
- return (int)(len - s->stream.avail_out);
-}
-
-
-/* ===========================================================================
- Reads one byte from the compressed file. gzgetc returns this byte
- or -1 in case of end of file or error.
-*/
-int ZEXPORT gzgetc(file)
- gzFile file;
-{
- unsigned char c;
-
- return gzread(file, &c, 1) == 1 ? c : -1;
-}
-
-
-/* ===========================================================================
- Reads bytes from the compressed file until len-1 characters are
- read, or a newline character is read and transferred to buf, or an
- end-of-file condition is encountered. The string is then terminated
- with a null character.
- gzgets returns buf, or Z_NULL in case of error.
-
- The current implementation is not optimized at all.
-*/
-char * ZEXPORT gzgets(file, buf, len)
- gzFile file;
- char *buf;
- int len;
-{
- char *b = buf;
- if (buf == Z_NULL || len <= 0) return Z_NULL;
-
- while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ;
- *buf = '\0';
- return b == buf && len > 0 ? Z_NULL : b;
-}
-
-
-#ifndef NO_DEFLATE
-/* ===========================================================================
- Writes the given number of uncompressed bytes into the compressed file.
- gzwrite returns the number of bytes actually written (0 in case of error).
-*/
-int ZEXPORT gzwrite (file, buf, len)
- gzFile file;
- const voidp buf;
- unsigned len;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- s->stream.next_in = (Bytef*)buf;
- s->stream.avail_in = len;
-
- while (s->stream.avail_in != 0) {
-
- if (s->stream.avail_out == 0) {
-
- s->stream.next_out = s->outbuf;
- if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) {
- s->z_err = Z_ERRNO;
- break;
- }
- s->stream.avail_out = Z_BUFSIZE;
- }
- s->z_err = deflate(&(s->stream), Z_NO_FLUSH);
- if (s->z_err != Z_OK) break;
- }
- s->crc = crc32(s->crc, (const Bytef *)buf, len);
-
- return (int)(len - s->stream.avail_in);
-}
-
-/* ===========================================================================
- Converts, formats, and writes the args to the compressed file under
- control of the format string, as in fprintf. gzprintf returns the number of
- uncompressed bytes actually written (0 in case of error).
-*/
-#ifdef STDC
-#include <stdarg.h>
-
-int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...)
-{
- char buf[Z_PRINTF_BUFSIZE];
- va_list va;
- int len;
-
- va_start(va, format);
-#ifdef HAS_vsnprintf
- (void)vsnprintf(buf, sizeof(buf), format, va);
-#else
- (void)vsprintf(buf, format, va);
-#endif
- va_end(va);
- len = strlen(buf); /* some *sprintf don't return the nb of bytes written */
- if (len <= 0) return 0;
-
- return gzwrite(file, buf, (unsigned)len);
-}
-#else /* not ANSI C */
-
-int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
- a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
- gzFile file;
- const char *format;
- int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
- a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
-{
- char buf[Z_PRINTF_BUFSIZE];
- int len;
-
-#ifdef HAS_snprintf
- snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-#else
- sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8,
- a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
-#endif
- len = strlen(buf); /* old sprintf doesn't return the nb of bytes written */
- if (len <= 0) return 0;
-
- return gzwrite(file, buf, len);
-}
-#endif
-
-/* ===========================================================================
- Writes c, converted to an unsigned char, into the compressed file.
- gzputc returns the value that was written, or -1 in case of error.
-*/
-int ZEXPORT gzputc(file, c)
- gzFile file;
- int c;
-{
- unsigned char cc = (unsigned char) c; /* required for big endian systems */
-
- return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1;
-}
-
-
-/* ===========================================================================
- Writes the given null-terminated string to the compressed file, excluding
- the terminating null character.
- gzputs returns the number of characters written, or -1 in case of error.
-*/
-int ZEXPORT gzputs(file, s)
- gzFile file;
- const char *s;
-{
- return gzwrite(file, (char*)s, (unsigned)strlen(s));
-}
-
-
-/* ===========================================================================
- Flushes all pending output into the compressed file. The parameter
- flush is as in the deflate() function.
-*/
-local int do_flush (file, flush)
- gzFile file;
- int flush;
-{
- uInt len;
- int done = 0;
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR;
-
- s->stream.avail_in = 0; /* should be zero already anyway */
-
- for (;;) {
- len = Z_BUFSIZE - s->stream.avail_out;
-
- if (len != 0) {
- if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) {
- s->z_err = Z_ERRNO;
- return Z_ERRNO;
- }
- s->stream.next_out = s->outbuf;
- s->stream.avail_out = Z_BUFSIZE;
- }
- if (done) break;
- s->z_err = deflate(&(s->stream), flush);
-
- /* Ignore the second of two consecutive flushes: */
- if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK;
-
- /* deflate has finished flushing only when it hasn't used up
- * all the available space in the output buffer:
- */
- done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END);
-
- if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break;
- }
- return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-
-int ZEXPORT gzflush (file, flush)
- gzFile file;
- int flush;
-{
- gz_stream *s = (gz_stream*)file;
- int err = do_flush (file, flush);
-
- if (err) return err;
- fflush(s->file);
- return s->z_err == Z_STREAM_END ? Z_OK : s->z_err;
-}
-#endif /* NO_DEFLATE */
-
-/* ===========================================================================
- Sets the starting position for the next gzread or gzwrite on the given
- compressed file. The offset represents a number of bytes in the
- gzseek returns the resulting offset location as measured in bytes from
- the beginning of the uncompressed stream, or -1 in case of error.
- SEEK_END is not implemented, returns error.
- In this version of the library, gzseek can be extremely slow.
-*/
-z_off_t ZEXPORT gzseek (file, offset, whence)
- gzFile file;
- z_off_t offset;
- int whence;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || whence == SEEK_END ||
- s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) {
- return -1L;
- }
-
- if (s->mode == 'w') {
-#ifdef NO_DEFLATE
- return -1L;
-#else
- if (whence == SEEK_SET) {
- offset -= s->stream.total_in;
- }
- if (offset < 0) return -1L;
-
- /* At this point, offset is the number of zero bytes to write. */
- if (s->inbuf == Z_NULL) {
- s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */
- zmemzero(s->inbuf, Z_BUFSIZE);
- }
- while (offset > 0) {
- uInt size = Z_BUFSIZE;
- if (offset < Z_BUFSIZE) size = (uInt)offset;
-
- size = gzwrite(file, s->inbuf, size);
- if (size == 0) return -1L;
-
- offset -= size;
- }
- return (z_off_t)s->stream.total_in;
-#endif
- }
- /* Rest of function is for reading only */
-
- /* compute absolute position */
- if (whence == SEEK_CUR) {
- offset += s->stream.total_out;
- }
- if (offset < 0) return -1L;
-
- if (s->transparent) {
- /* map to fseek */
- s->stream.avail_in = 0;
- s->stream.next_in = s->inbuf;
- if (fseek(s->file, offset, SEEK_SET) < 0) return -1L;
-
- s->stream.total_in = s->stream.total_out = (uLong)offset;
- return offset;
- }
-
- /* For a negative seek, rewind and use positive seek */
- if ((uLong)offset >= s->stream.total_out) {
- offset -= s->stream.total_out;
- } else if (gzrewind(file) < 0) {
- return -1L;
- }
- /* offset is now the number of bytes to skip. */
-
- if (offset != 0 && s->outbuf == Z_NULL) {
- s->outbuf = (Byte*)ALLOC(Z_BUFSIZE);
- }
- while (offset > 0) {
- int size = Z_BUFSIZE;
- if (offset < Z_BUFSIZE) size = (int)offset;
-
- size = gzread(file, s->outbuf, (uInt)size);
- if (size <= 0) return -1L;
- offset -= size;
- }
- return (z_off_t)s->stream.total_out;
-}
-
-/* ===========================================================================
- Rewinds input file.
-*/
-int ZEXPORT gzrewind (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL || s->mode != 'r') return -1;
-
- s->z_err = Z_OK;
- s->z_eof = 0;
- s->stream.avail_in = 0;
- s->stream.next_in = s->inbuf;
- s->crc = crc32(0L, Z_NULL, 0);
-
- if (s->startpos == 0) { /* not a compressed file */
- rewind(s->file);
- return 0;
- }
-
- (void) inflateReset(&s->stream);
- return fseek(s->file, s->startpos, SEEK_SET);
-}
-
-/* ===========================================================================
- Returns the starting position for the next gzread or gzwrite on the
- given compressed file. This position represents a number of bytes in the
- uncompressed data stream.
-*/
-z_off_t ZEXPORT gztell (file)
- gzFile file;
-{
- return gzseek(file, 0L, SEEK_CUR);
-}
-
-/* ===========================================================================
- Returns 1 when EOF has previously been detected reading the given
- input stream, otherwise zero.
-*/
-int ZEXPORT gzeof (file)
- gzFile file;
-{
- gz_stream *s = (gz_stream*)file;
-
- return (s == NULL || s->mode != 'r') ? 0 : s->z_eof;
-}
-
-/* ===========================================================================
- Outputs a long in LSB order to the given file
-*/
-local void putLong (file, x)
- FILE *file;
- uLong x;
-{
- int n;
- for (n = 0; n < 4; n++) {
- fputc((int)(x & 0xff), file);
- x >>= 8;
- }
-}
-
-/* ===========================================================================
- Reads a long in LSB order from the given gz_stream. Sets z_err in case
- of error.
-*/
-local uLong getLong (s)
- gz_stream *s;
-{
- uLong x = (uLong)get_byte(s);
- int c;
-
- x += ((uLong)get_byte(s))<<8;
- x += ((uLong)get_byte(s))<<16;
- c = get_byte(s);
- if (c == EOF) s->z_err = Z_DATA_ERROR;
- x += ((uLong)c)<<24;
- return x;
-}
-
-/* ===========================================================================
- Flushes all pending output if necessary, closes the compressed file
- and deallocates all the (de)compression state.
-*/
-int ZEXPORT gzclose (file)
- gzFile file;
-{
- int err;
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL) return Z_STREAM_ERROR;
-
- if (s->mode == 'w') {
-#ifdef NO_DEFLATE
- return Z_STREAM_ERROR;
-#else
- err = do_flush (file, Z_FINISH);
- if (err != Z_OK) return destroy((gz_stream*)file);
-
- putLong (s->file, s->crc);
- putLong (s->file, s->stream.total_in);
-#endif
- }
- return destroy((gz_stream*)file);
-}
-
-/* ===========================================================================
- Returns the error message for the last error which occured on the
- given compressed file. errnum is set to zlib error number. If an
- error occured in the file system and not in the compression library,
- errnum is set to Z_ERRNO and the application may consult errno
- to get the exact error code.
-*/
-const char* ZEXPORT gzerror (file, errnum)
- gzFile file;
- int *errnum;
-{
- char *m;
- gz_stream *s = (gz_stream*)file;
-
- if (s == NULL) {
- *errnum = Z_STREAM_ERROR;
- return (const char*)ERR_MSG(Z_STREAM_ERROR);
- }
- *errnum = s->z_err;
- if (*errnum == Z_OK) return (const char*)"";
-
- m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg);
-
- if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err);
-
- TRYFREE(s->msg);
- s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3);
- strcpy(s->msg, s->path);
- strcat(s->msg, ": ");
- strcat(s->msg, m);
- return (const char*)s->msg;
-}
+++ /dev/null
-/* infblock.c -- interpret and process block types to last block
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "infblock.h"
-#include "inftrees.h"
-#include "infcodes.h"
-#include "infutil.h"
-
-struct inflate_codes_state {int dummy;}; /* for buggy compilers */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* Table for deflate from PKZIP's appnote.txt. */
-local const uInt border[] = { /* Order of the bit length code lengths */
- 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
-
-/*
- Notes beyond the 1.93a appnote.txt:
-
- 1. Distance pointers never point before the beginning of the output
- stream.
- 2. Distance pointers can point back across blocks, up to 32k away.
- 3. There is an implied maximum of 7 bits for the bit length table and
- 15 bits for the actual data.
- 4. If only one code exists, then it is encoded using one bit. (Zero
- would be more efficient, but perhaps a little confusing.) If two
- codes exist, they are coded using one bit each (0 and 1).
- 5. There is no way of sending zero distance codes--a dummy must be
- sent if there are none. (History: a pre 2.0 version of PKZIP would
- store blocks with no distance codes, but this was discovered to be
- too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
- zero distance codes, which is sent as one code of zero bits in
- length.
- 6. There are up to 286 literal/length codes. Code 256 represents the
- end-of-block. Note however that the static length tree defines
- 288 codes just to fill out the Huffman codes. Codes 286 and 287
- cannot be used though, since there is no length base or extra bits
- defined for them. Similarily, there are up to 30 distance codes.
- However, static trees define 32 codes (all 5 bits) to fill out the
- Huffman codes, but the last two had better not show up in the data.
- 7. Unzip can check dynamic Huffman blocks for complete code sets.
- The exception is that a single code would not be complete (see #4).
- 8. The five bits following the block type is really the number of
- literal codes sent minus 257.
- 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
- (1+6+6). Therefore, to output three times the length, you output
- three codes (1+1+1), whereas to output four times the same length,
- you only need two codes (1+3). Hmm.
- 10. In the tree reconstruction algorithm, Code = Code + Increment
- only if BitLength(i) is not zero. (Pretty obvious.)
- 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
- 12. Note: length code 284 can represent 227-258, but length code 285
- really is 258. The last length deserves its own, short code
- since it gets used a lot in very redundant files. The length
- 258 is special since 258 - 3 (the min match length) is 255.
- 13. The literal/length and distance code bit lengths are read as a
- single stream of lengths. It is possible (and advantageous) for
- a repeat code (16, 17, or 18) to go across the boundary between
- the two sets of lengths.
- */
-
-
-void inflate_blocks_reset(s, z, c)
-inflate_blocks_statef *s;
-z_streamp z;
-uLongf *c;
-{
- if (c != Z_NULL)
- *c = s->check;
- if (s->mode == BTREE || s->mode == DTREE)
- ZFREE(z, s->sub.trees.blens);
- if (s->mode == CODES)
- inflate_codes_free(s->sub.decode.codes, z);
- s->mode = TYPE;
- s->bitk = 0;
- s->bitb = 0;
- s->read = s->write = s->window;
- if (s->checkfn != Z_NULL)
- z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
- Tracev((stderr, "inflate: blocks reset\n"));
-}
-
-
-inflate_blocks_statef *inflate_blocks_new(z, c, w)
-z_streamp z;
-check_func c;
-uInt w;
-{
- inflate_blocks_statef *s;
-
- if ((s = (inflate_blocks_statef *)ZALLOC
- (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
- return s;
- if ((s->hufts =
- (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL)
- {
- ZFREE(z, s);
- return Z_NULL;
- }
- if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
- {
- ZFREE(z, s->hufts);
- ZFREE(z, s);
- return Z_NULL;
- }
- s->end = s->window + w;
- s->checkfn = c;
- s->mode = TYPE;
- Tracev((stderr, "inflate: blocks allocated\n"));
- inflate_blocks_reset(s, z, Z_NULL);
- return s;
-}
-
-
-int inflate_blocks(s, z, r)
-inflate_blocks_statef *s;
-z_streamp z;
-int r;
-{
- uInt t; /* temporary storage */
- uLong b; /* bit buffer */
- uInt k; /* bits in bit buffer */
- Bytef *p; /* input data pointer */
- uInt n; /* bytes available there */
- Bytef *q; /* output window write pointer */
- uInt m; /* bytes to end of window or read pointer */
-
- /* copy input/output information to locals (UPDATE macro restores) */
- LOAD
-
- /* process input based on current state */
- while (1) switch (s->mode)
- {
- case TYPE:
- NEEDBITS(3)
- t = (uInt)b & 7;
- s->last = t & 1;
- switch (t >> 1)
- {
- case 0: /* stored */
- Tracev((stderr, "inflate: stored block%s\n",
- s->last ? " (last)" : ""));
- DUMPBITS(3)
- t = k & 7; /* go to byte boundary */
- DUMPBITS(t)
- s->mode = LENS; /* get length of stored block */
- break;
- case 1: /* fixed */
- Tracev((stderr, "inflate: fixed codes block%s\n",
- s->last ? " (last)" : ""));
- {
- uInt bl, bd;
- inflate_huft *tl, *td;
-
- inflate_trees_fixed(&bl, &bd, &tl, &td, z);
- s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
- if (s->sub.decode.codes == Z_NULL)
- {
- r = Z_MEM_ERROR;
- LEAVE
- }
- }
- DUMPBITS(3)
- s->mode = CODES;
- break;
- case 2: /* dynamic */
- Tracev((stderr, "inflate: dynamic codes block%s\n",
- s->last ? " (last)" : ""));
- DUMPBITS(3)
- s->mode = TABLE;
- break;
- case 3: /* illegal */
- DUMPBITS(3)
- s->mode = BAD;
- z->msg = (char*)"invalid block type";
- r = Z_DATA_ERROR;
- LEAVE
- }
- break;
- case LENS:
- NEEDBITS(32)
- if ((((~b) >> 16) & 0xffff) != (b & 0xffff))
- {
- s->mode = BAD;
- z->msg = (char*)"invalid stored block lengths";
- r = Z_DATA_ERROR;
- LEAVE
- }
- s->sub.left = (uInt)b & 0xffff;
- b = k = 0; /* dump bits */
- Tracev((stderr, "inflate: stored length %u\n", s->sub.left));
- s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
- break;
- case STORED:
- if (n == 0)
- LEAVE
- NEEDOUT
- t = s->sub.left;
- if (t > n) t = n;
- if (t > m) t = m;
- zmemcpy(q, p, t);
- p += t; n -= t;
- q += t; m -= t;
- if ((s->sub.left -= t) != 0)
- break;
- Tracev((stderr, "inflate: stored end, %lu total out\n",
- z->total_out + (q >= s->read ? q - s->read :
- (s->end - s->read) + (q - s->window))));
- s->mode = s->last ? DRY : TYPE;
- break;
- case TABLE:
- NEEDBITS(14)
- s->sub.trees.table = t = (uInt)b & 0x3fff;
-#ifndef PKZIP_BUG_WORKAROUND
- if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
- {
- s->mode = BAD;
- z->msg = (char*)"too many length or distance symbols";
- r = Z_DATA_ERROR;
- LEAVE
- }
-#endif
- t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
- if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
- {
- r = Z_MEM_ERROR;
- LEAVE
- }
- DUMPBITS(14)
- s->sub.trees.index = 0;
- Tracev((stderr, "inflate: table sizes ok\n"));
- s->mode = BTREE;
- case BTREE:
- while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
- {
- NEEDBITS(3)
- s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
- DUMPBITS(3)
- }
- while (s->sub.trees.index < 19)
- s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
- s->sub.trees.bb = 7;
- t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
- &s->sub.trees.tb, s->hufts, z);
- if (t != Z_OK)
- {
- ZFREE(z, s->sub.trees.blens);
- r = t;
- if (r == Z_DATA_ERROR)
- s->mode = BAD;
- LEAVE
- }
- s->sub.trees.index = 0;
- Tracev((stderr, "inflate: bits tree ok\n"));
- s->mode = DTREE;
- case DTREE:
- while (t = s->sub.trees.table,
- s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
- {
- inflate_huft *h;
- uInt i, j, c;
-
- t = s->sub.trees.bb;
- NEEDBITS(t)
- h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
- t = h->bits;
- c = h->base;
- if (c < 16)
- {
- DUMPBITS(t)
- s->sub.trees.blens[s->sub.trees.index++] = c;
- }
- else /* c == 16..18 */
- {
- i = c == 18 ? 7 : c - 14;
- j = c == 18 ? 11 : 3;
- NEEDBITS(t + i)
- DUMPBITS(t)
- j += (uInt)b & inflate_mask[i];
- DUMPBITS(i)
- i = s->sub.trees.index;
- t = s->sub.trees.table;
- if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
- (c == 16 && i < 1))
- {
- ZFREE(z, s->sub.trees.blens);
- s->mode = BAD;
- z->msg = (char*)"invalid bit length repeat";
- r = Z_DATA_ERROR;
- LEAVE
- }
- c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
- do {
- s->sub.trees.blens[i++] = c;
- } while (--j);
- s->sub.trees.index = i;
- }
- }
- s->sub.trees.tb = Z_NULL;
- {
- uInt bl, bd;
- inflate_huft *tl, *td;
- inflate_codes_statef *c;
-
- bl = 9; /* must be <= 9 for lookahead assumptions */
- bd = 6; /* must be <= 9 for lookahead assumptions */
- t = s->sub.trees.table;
- t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
- s->sub.trees.blens, &bl, &bd, &tl, &td,
- s->hufts, z);
- ZFREE(z, s->sub.trees.blens);
- if (t != Z_OK)
- {
- if (t == (uInt)Z_DATA_ERROR)
- s->mode = BAD;
- r = t;
- LEAVE
- }
- Tracev((stderr, "inflate: trees ok\n"));
- if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
- {
- r = Z_MEM_ERROR;
- LEAVE
- }
- s->sub.decode.codes = c;
- }
- s->mode = CODES;
- case CODES:
- UPDATE
- if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
- return inflate_flush(s, z, r);
- r = Z_OK;
- inflate_codes_free(s->sub.decode.codes, z);
- LOAD
- Tracev((stderr, "inflate: codes end, %lu total out\n",
- z->total_out + (q >= s->read ? q - s->read :
- (s->end - s->read) + (q - s->window))));
- if (!s->last)
- {
- s->mode = TYPE;
- break;
- }
- s->mode = DRY;
- case DRY:
- FLUSH
- if (s->read != s->write)
- LEAVE
- s->mode = DONE;
- case DONE:
- r = Z_STREAM_END;
- LEAVE
- case BAD:
- r = Z_DATA_ERROR;
- LEAVE
- default:
- r = Z_STREAM_ERROR;
- LEAVE
- }
-}
-
-
-int inflate_blocks_free(s, z)
-inflate_blocks_statef *s;
-z_streamp z;
-{
- inflate_blocks_reset(s, z, Z_NULL);
- ZFREE(z, s->window);
- ZFREE(z, s->hufts);
- ZFREE(z, s);
- Tracev((stderr, "inflate: blocks freed\n"));
- return Z_OK;
-}
-
-
-void inflate_set_dictionary(s, d, n)
-inflate_blocks_statef *s;
-const Bytef *d;
-uInt n;
-{
- zmemcpy(s->window, d, n);
- s->read = s->write = s->window + n;
-}
-
-
-/* Returns true if inflate is currently at the end of a block generated
- * by Z_SYNC_FLUSH or Z_FULL_FLUSH.
- * IN assertion: s != Z_NULL
- */
-int inflate_blocks_sync_point(s)
-inflate_blocks_statef *s;
-{
- return s->mode == LENS;
-}
+++ /dev/null
-/* infblock.h -- header to use infblock.c
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-struct inflate_blocks_state;
-typedef struct inflate_blocks_state FAR inflate_blocks_statef;
-
-extern inflate_blocks_statef * inflate_blocks_new OF((
- z_streamp z,
- check_func c, /* check function */
- uInt w)); /* window size */
-
-extern int inflate_blocks OF((
- inflate_blocks_statef *,
- z_streamp ,
- int)); /* initial return code */
-
-extern void inflate_blocks_reset OF((
- inflate_blocks_statef *,
- z_streamp ,
- uLongf *)); /* check value on output */
-
-extern int inflate_blocks_free OF((
- inflate_blocks_statef *,
- z_streamp));
-
-extern void inflate_set_dictionary OF((
- inflate_blocks_statef *s,
- const Bytef *d, /* dictionary */
- uInt n)); /* dictionary length */
-
-extern int inflate_blocks_sync_point OF((
- inflate_blocks_statef *s));
+++ /dev/null
-/* infcodes.c -- process literals and length/distance pairs
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "infblock.h"
-#include "infcodes.h"
-#include "infutil.h"
-#include "inffast.h"
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
- START, /* x: set up for LEN */
- LEN, /* i: get length/literal/eob next */
- LENEXT, /* i: getting length extra (have base) */
- DIST, /* i: get distance next */
- DISTEXT, /* i: getting distance extra */
- COPY, /* o: copying bytes in window, waiting for space */
- LIT, /* o: got literal, waiting for output space */
- WASH, /* o: got eob, possibly still output waiting */
- END, /* x: got eob and all data flushed */
- BADCODE} /* x: got error */
-inflate_codes_mode;
-
-/* inflate codes private state */
-struct inflate_codes_state {
-
- /* mode */
- inflate_codes_mode mode; /* current inflate_codes mode */
-
- /* mode dependent information */
- uInt len;
- union {
- struct {
- inflate_huft *tree; /* pointer into tree */
- uInt need; /* bits needed */
- } code; /* if LEN or DIST, where in tree */
- uInt lit; /* if LIT, literal */
- struct {
- uInt get; /* bits to get for extra */
- uInt dist; /* distance back to copy from */
- } copy; /* if EXT or COPY, where and how much */
- } sub; /* submode */
-
- /* mode independent information */
- Byte lbits; /* ltree bits decoded per branch */
- Byte dbits; /* dtree bits decoder per branch */
- inflate_huft *ltree; /* literal/length/eob tree */
- inflate_huft *dtree; /* distance tree */
-
-};
-
-
-inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z)
-uInt bl, bd;
-inflate_huft *tl;
-inflate_huft *td; /* need separate declaration for Borland C++ */
-z_streamp z;
-{
- inflate_codes_statef *c;
-
- if ((c = (inflate_codes_statef *)
- ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL)
- {
- c->mode = START;
- c->lbits = (Byte)bl;
- c->dbits = (Byte)bd;
- c->ltree = tl;
- c->dtree = td;
- Tracev((stderr, "inflate: codes new\n"));
- }
- return c;
-}
-
-
-int inflate_codes(s, z, r)
-inflate_blocks_statef *s;
-z_streamp z;
-int r;
-{
- uInt j; /* temporary storage */
- inflate_huft *t; /* temporary pointer */
- uInt e; /* extra bits or operation */
- uLong b; /* bit buffer */
- uInt k; /* bits in bit buffer */
- Bytef *p; /* input data pointer */
- uInt n; /* bytes available there */
- Bytef *q; /* output window write pointer */
- uInt m; /* bytes to end of window or read pointer */
- Bytef *f; /* pointer to copy strings from */
- inflate_codes_statef *c = s->sub.decode.codes; /* codes state */
-
- /* copy input/output information to locals (UPDATE macro restores) */
- LOAD
-
- /* process input and output based on current state */
- while (1) switch (c->mode)
- { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
- case START: /* x: set up for LEN */
-#ifndef SLOW
- if (m >= 258 && n >= 10)
- {
- UPDATE
- r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
- LOAD
- if (r != Z_OK)
- {
- c->mode = r == Z_STREAM_END ? WASH : BADCODE;
- break;
- }
- }
-#endif /* !SLOW */
- c->sub.code.need = c->lbits;
- c->sub.code.tree = c->ltree;
- c->mode = LEN;
- case LEN: /* i: get length/literal/eob next */
- j = c->sub.code.need;
- NEEDBITS(j)
- t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
- DUMPBITS(t->bits)
- e = (uInt)(t->exop);
- if (e == 0) /* literal */
- {
- c->sub.lit = t->base;
- Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: literal '%c'\n" :
- "inflate: literal 0x%02x\n", t->base));
- c->mode = LIT;
- break;
- }
- if (e & 16) /* length */
- {
- c->sub.copy.get = e & 15;
- c->len = t->base;
- c->mode = LENEXT;
- break;
- }
- if ((e & 64) == 0) /* next table */
- {
- c->sub.code.need = e;
- c->sub.code.tree = t + t->base;
- break;
- }
- if (e & 32) /* end of block */
- {
- Tracevv((stderr, "inflate: end of block\n"));
- c->mode = WASH;
- break;
- }
- c->mode = BADCODE; /* invalid code */
- z->msg = (char*)"invalid literal/length code";
- r = Z_DATA_ERROR;
- LEAVE
- case LENEXT: /* i: getting length extra (have base) */
- j = c->sub.copy.get;
- NEEDBITS(j)
- c->len += (uInt)b & inflate_mask[j];
- DUMPBITS(j)
- c->sub.code.need = c->dbits;
- c->sub.code.tree = c->dtree;
- Tracevv((stderr, "inflate: length %u\n", c->len));
- c->mode = DIST;
- case DIST: /* i: get distance next */
- j = c->sub.code.need;
- NEEDBITS(j)
- t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
- DUMPBITS(t->bits)
- e = (uInt)(t->exop);
- if (e & 16) /* distance */
- {
- c->sub.copy.get = e & 15;
- c->sub.copy.dist = t->base;
- c->mode = DISTEXT;
- break;
- }
- if ((e & 64) == 0) /* next table */
- {
- c->sub.code.need = e;
- c->sub.code.tree = t + t->base;
- break;
- }
- c->mode = BADCODE; /* invalid code */
- z->msg = (char*)"invalid distance code";
- r = Z_DATA_ERROR;
- LEAVE
- case DISTEXT: /* i: getting distance extra */
- j = c->sub.copy.get;
- NEEDBITS(j)
- c->sub.copy.dist += (uInt)b & inflate_mask[j];
- DUMPBITS(j)
- Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist));
- c->mode = COPY;
- case COPY: /* o: copying bytes in window, waiting for space */
-#ifndef __TURBOC__ /* Turbo C bug for following expression */
- f = (uInt)(q - s->window) < c->sub.copy.dist ?
- s->end - (c->sub.copy.dist - (q - s->window)) :
- q - c->sub.copy.dist;
-#else
- f = q - c->sub.copy.dist;
- if ((uInt)(q - s->window) < c->sub.copy.dist)
- f = s->end - (c->sub.copy.dist - (uInt)(q - s->window));
-#endif
- while (c->len)
- {
- NEEDOUT
- OUTBYTE(*f++)
- if (f == s->end)
- f = s->window;
- c->len--;
- }
- c->mode = START;
- break;
- case LIT: /* o: got literal, waiting for output space */
- NEEDOUT
- OUTBYTE(c->sub.lit)
- c->mode = START;
- break;
- case WASH: /* o: got eob, possibly more output */
- if (k > 7) /* return unused byte, if any */
- {
- Assert(k < 16, "inflate_codes grabbed too many bytes")
- k -= 8;
- n++;
- p--; /* can always return one */
- }
- FLUSH
- if (s->read != s->write)
- LEAVE
- c->mode = END;
- case END:
- r = Z_STREAM_END;
- LEAVE
- case BADCODE: /* x: got error */
- r = Z_DATA_ERROR;
- LEAVE
- default:
- r = Z_STREAM_ERROR;
- LEAVE
- }
-#ifdef NEED_DUMMY_RETURN
- return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
-#endif
-}
-
-
-void inflate_codes_free(c, z)
-inflate_codes_statef *c;
-z_streamp z;
-{
- ZFREE(z, c);
- Tracev((stderr, "inflate: codes free\n"));
-}
+++ /dev/null
-/* infcodes.h -- header to use infcodes.c
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-struct inflate_codes_state;
-typedef struct inflate_codes_state FAR inflate_codes_statef;
-
-extern inflate_codes_statef *inflate_codes_new OF((
- uInt, uInt,
- inflate_huft *, inflate_huft *,
- z_streamp ));
-
-extern int inflate_codes OF((
- inflate_blocks_statef *,
- z_streamp ,
- int));
-
-extern void inflate_codes_free OF((
- inflate_codes_statef *,
- z_streamp ));
-
+++ /dev/null
-/* inffast.c -- process literals and length/distance pairs fast
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "infblock.h"
-#include "infcodes.h"
-#include "infutil.h"
-#include "inffast.h"
-
-struct inflate_codes_state {int dummy;}; /* for buggy compilers */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* macros for bit input with no checking and for returning unused bytes */
-#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define UNGRAB {c=z->avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;}
-
-/* Called with number of bytes left to write in window at least 258
- (the maximum string length) and number of input bytes available
- at least ten. The ten bytes are six bytes for the longest length/
- distance pair plus four bytes for overloading the bit buffer. */
-
-int inflate_fast(bl, bd, tl, td, s, z)
-uInt bl, bd;
-inflate_huft *tl;
-inflate_huft *td; /* need separate declaration for Borland C++ */
-inflate_blocks_statef *s;
-z_streamp z;
-{
- inflate_huft *t; /* temporary pointer */
- uInt e; /* extra bits or operation */
- uLong b; /* bit buffer */
- uInt k; /* bits in bit buffer */
- Bytef *p; /* input data pointer */
- uInt n; /* bytes available there */
- Bytef *q; /* output window write pointer */
- uInt m; /* bytes to end of window or read pointer */
- uInt ml; /* mask for literal/length tree */
- uInt md; /* mask for distance tree */
- uInt c; /* bytes to copy */
- uInt d; /* distance back to copy from */
- Bytef *r; /* copy source pointer */
-
- /* load input, output, bit values */
- LOAD
-
- /* initialize masks */
- ml = inflate_mask[bl];
- md = inflate_mask[bd];
-
- /* do until not enough input or output space for fast loop */
- do { /* assume called with m >= 258 && n >= 10 */
- /* get literal/length code */
- GRABBITS(20) /* max bits for literal/length code */
- if ((e = (t = tl + ((uInt)b & ml))->exop) == 0)
- {
- DUMPBITS(t->bits)
- Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: * literal '%c'\n" :
- "inflate: * literal 0x%02x\n", t->base));
- *q++ = (Byte)t->base;
- m--;
- continue;
- }
- do {
- DUMPBITS(t->bits)
- if (e & 16)
- {
- /* get extra bits for length */
- e &= 15;
- c = t->base + ((uInt)b & inflate_mask[e]);
- DUMPBITS(e)
- Tracevv((stderr, "inflate: * length %u\n", c));
-
- /* decode distance base of block to copy */
- GRABBITS(15); /* max bits for distance code */
- e = (t = td + ((uInt)b & md))->exop;
- do {
- DUMPBITS(t->bits)
- if (e & 16)
- {
- /* get extra bits to add to distance base */
- e &= 15;
- GRABBITS(e) /* get extra bits (up to 13) */
- d = t->base + ((uInt)b & inflate_mask[e]);
- DUMPBITS(e)
- Tracevv((stderr, "inflate: * distance %u\n", d));
-
- /* do the copy */
- m -= c;
- if ((uInt)(q - s->window) >= d) /* offset before dest */
- { /* just copy */
- r = q - d;
- *q++ = *r++; c--; /* minimum count is three, */
- *q++ = *r++; c--; /* so unroll loop a little */
- }
- else /* else offset after destination */
- {
- e = d - (uInt)(q - s->window); /* bytes from offset to end */
- r = s->end - e; /* pointer to offset */
- if (c > e) /* if source crosses, */
- {
- c -= e; /* copy to end of window */
- do {
- *q++ = *r++;
- } while (--e);
- r = s->window; /* copy rest from start of window */
- }
- }
- do { /* copy all or what's left */
- *q++ = *r++;
- } while (--c);
- break;
- }
- else if ((e & 64) == 0)
- {
- t += t->base;
- e = (t += ((uInt)b & inflate_mask[e]))->exop;
- }
- else
- {
- z->msg = (char*)"invalid distance code";
- UNGRAB
- UPDATE
- return Z_DATA_ERROR;
- }
- } while (1);
- break;
- }
- if ((e & 64) == 0)
- {
- t += t->base;
- if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0)
- {
- DUMPBITS(t->bits)
- Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
- "inflate: * literal '%c'\n" :
- "inflate: * literal 0x%02x\n", t->base));
- *q++ = (Byte)t->base;
- m--;
- break;
- }
- }
- else if (e & 32)
- {
- Tracevv((stderr, "inflate: * end of block\n"));
- UNGRAB
- UPDATE
- return Z_STREAM_END;
- }
- else
- {
- z->msg = (char*)"invalid literal/length code";
- UNGRAB
- UPDATE
- return Z_DATA_ERROR;
- }
- } while (1);
- } while (m >= 258 && n >= 10);
-
- /* not enough input or output--restore pointers and return */
- UNGRAB
- UPDATE
- return Z_OK;
-}
+++ /dev/null
-/* inffast.h -- header to use inffast.c
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-extern int inflate_fast OF((
- uInt,
- uInt,
- inflate_huft *,
- inflate_huft *,
- inflate_blocks_statef *,
- z_streamp ));
+++ /dev/null
-/* inffixed.h -- table for decoding fixed codes
- * Generated automatically by the maketree.c program
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-local uInt fixed_bl = 9;
-local uInt fixed_bd = 5;
-local inflate_huft fixed_tl[] = {
- {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115},
- {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192},
- {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160},
- {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224},
- {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144},
- {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208},
- {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176},
- {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240},
- {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227},
- {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200},
- {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168},
- {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232},
- {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152},
- {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216},
- {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184},
- {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248},
- {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163},
- {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196},
- {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164},
- {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228},
- {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148},
- {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212},
- {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180},
- {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244},
- {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0},
- {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204},
- {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172},
- {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236},
- {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156},
- {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220},
- {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188},
- {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252},
- {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131},
- {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194},
- {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162},
- {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226},
- {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146},
- {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210},
- {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178},
- {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242},
- {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258},
- {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202},
- {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170},
- {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234},
- {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154},
- {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218},
- {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186},
- {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250},
- {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195},
- {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198},
- {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166},
- {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230},
- {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150},
- {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214},
- {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182},
- {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246},
- {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0},
- {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206},
- {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174},
- {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238},
- {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158},
- {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222},
- {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190},
- {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254},
- {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115},
- {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193},
- {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161},
- {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225},
- {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145},
- {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209},
- {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177},
- {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241},
- {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227},
- {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201},
- {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169},
- {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233},
- {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153},
- {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217},
- {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185},
- {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249},
- {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163},
- {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197},
- {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165},
- {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229},
- {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149},
- {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213},
- {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181},
- {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245},
- {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0},
- {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205},
- {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173},
- {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237},
- {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157},
- {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221},
- {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189},
- {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253},
- {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131},
- {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195},
- {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163},
- {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227},
- {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147},
- {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211},
- {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179},
- {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243},
- {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258},
- {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203},
- {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171},
- {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235},
- {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155},
- {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219},
- {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187},
- {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251},
- {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195},
- {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199},
- {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167},
- {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231},
- {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151},
- {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215},
- {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183},
- {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247},
- {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0},
- {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207},
- {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175},
- {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239},
- {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159},
- {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223},
- {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191},
- {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255}
- };
-local inflate_huft fixed_td[] = {
- {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097},
- {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385},
- {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193},
- {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577},
- {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145},
- {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577},
- {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289},
- {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577}
- };
+++ /dev/null
-/* inflate.c -- zlib interface to inflate modules
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "infblock.h"
-
-struct inflate_blocks_state {int dummy;}; /* for buggy compilers */
-
-typedef enum {
- METHOD, /* waiting for method byte */
- FLAG, /* waiting for flag byte */
- DICT4, /* four dictionary check bytes to go */
- DICT3, /* three dictionary check bytes to go */
- DICT2, /* two dictionary check bytes to go */
- DICT1, /* one dictionary check byte to go */
- DICT0, /* waiting for inflateSetDictionary */
- BLOCKS, /* decompressing blocks */
- CHECK4, /* four check bytes to go */
- CHECK3, /* three check bytes to go */
- CHECK2, /* two check bytes to go */
- CHECK1, /* one check byte to go */
- DONE, /* finished check, done */
- BAD} /* got an error--stay here */
-inflate_mode;
-
-/* inflate private state */
-struct internal_state {
-
- /* mode */
- inflate_mode mode; /* current inflate mode */
-
- /* mode dependent information */
- union {
- uInt method; /* if FLAGS, method byte */
- struct {
- uLong was; /* computed check value */
- uLong need; /* stream check value */
- } check; /* if CHECK, check values to compare */
- uInt marker; /* if BAD, inflateSync's marker bytes count */
- } sub; /* submode */
-
- /* mode independent information */
- int nowrap; /* flag for no wrapper */
- uInt wbits; /* log2(window size) (8..15, defaults to 15) */
- inflate_blocks_statef
- *blocks; /* current inflate_blocks state */
-
-};
-
-
-int ZEXPORT inflateReset(z)
-z_streamp z;
-{
- if (z == Z_NULL || z->state == Z_NULL)
- return Z_STREAM_ERROR;
- z->total_in = z->total_out = 0;
- z->msg = Z_NULL;
- z->state->mode = z->state->nowrap ? BLOCKS : METHOD;
- inflate_blocks_reset(z->state->blocks, z, Z_NULL);
- Tracev((stderr, "inflate: reset\n"));
- return Z_OK;
-}
-
-
-int ZEXPORT inflateEnd(z)
-z_streamp z;
-{
- if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL)
- return Z_STREAM_ERROR;
- if (z->state->blocks != Z_NULL)
- inflate_blocks_free(z->state->blocks, z);
- ZFREE(z, z->state);
- z->state = Z_NULL;
- Tracev((stderr, "inflate: end\n"));
- return Z_OK;
-}
-
-
-int ZEXPORT inflateInit2_(z, w, version, stream_size)
-z_streamp z;
-int w;
-const char *version;
-int stream_size;
-{
- if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
- stream_size != sizeof(z_stream))
- return Z_VERSION_ERROR;
-
- /* initialize state */
- if (z == Z_NULL)
- return Z_STREAM_ERROR;
- z->msg = Z_NULL;
- if (z->zalloc == Z_NULL)
- {
- z->zalloc = zcalloc;
- z->opaque = (voidpf)0;
- }
- if (z->zfree == Z_NULL) z->zfree = zcfree;
- if ((z->state = (struct internal_state FAR *)
- ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL)
- return Z_MEM_ERROR;
- z->state->blocks = Z_NULL;
-
- /* handle undocumented nowrap option (no zlib header or check) */
- z->state->nowrap = 0;
- if (w < 0)
- {
- w = - w;
- z->state->nowrap = 1;
- }
-
- /* set window size */
- if (w < 8 || w > 15)
- {
- inflateEnd(z);
- return Z_STREAM_ERROR;
- }
- z->state->wbits = (uInt)w;
-
- /* create inflate_blocks state */
- if ((z->state->blocks =
- inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w))
- == Z_NULL)
- {
- inflateEnd(z);
- return Z_MEM_ERROR;
- }
- Tracev((stderr, "inflate: allocated\n"));
-
- /* reset state */
- inflateReset(z);
- return Z_OK;
-}
-
-
-int ZEXPORT inflateInit_(z, version, stream_size)
-z_streamp z;
-const char *version;
-int stream_size;
-{
- return inflateInit2_(z, DEF_WBITS, version, stream_size);
-}
-
-
-#define NEEDBYTE {if(z->avail_in==0)return r;r=f;}
-#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++)
-
-int ZEXPORT inflate(z, f)
-z_streamp z;
-int f;
-{
- int r;
- uInt b;
-
- if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL)
- return Z_STREAM_ERROR;
- f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK;
- r = Z_BUF_ERROR;
- while (1) switch (z->state->mode)
- {
- case METHOD:
- NEEDBYTE
- if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED)
- {
- z->state->mode = BAD;
- z->msg = (char*)"unknown compression method";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
- }
- if ((z->state->sub.method >> 4) + 8 > z->state->wbits)
- {
- z->state->mode = BAD;
- z->msg = (char*)"invalid window size";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
- }
- z->state->mode = FLAG;
- case FLAG:
- NEEDBYTE
- b = NEXTBYTE;
- if (((z->state->sub.method << 8) + b) % 31)
- {
- z->state->mode = BAD;
- z->msg = (char*)"incorrect header check";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
- }
- Tracev((stderr, "inflate: zlib header ok\n"));
- if (!(b & PRESET_DICT))
- {
- z->state->mode = BLOCKS;
- break;
- }
- z->state->mode = DICT4;
- case DICT4:
- NEEDBYTE
- z->state->sub.check.need = (uLong)NEXTBYTE << 24;
- z->state->mode = DICT3;
- case DICT3:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE << 16;
- z->state->mode = DICT2;
- case DICT2:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE << 8;
- z->state->mode = DICT1;
- case DICT1:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE;
- z->adler = z->state->sub.check.need;
- z->state->mode = DICT0;
- return Z_NEED_DICT;
- case DICT0:
- z->state->mode = BAD;
- z->msg = (char*)"need dictionary";
- z->state->sub.marker = 0; /* can try inflateSync */
- return Z_STREAM_ERROR;
- case BLOCKS:
- r = inflate_blocks(z->state->blocks, z, r);
- if (r == Z_DATA_ERROR)
- {
- z->state->mode = BAD;
- z->state->sub.marker = 0; /* can try inflateSync */
- break;
- }
- if (r == Z_OK)
- r = f;
- if (r != Z_STREAM_END)
- return r;
- r = f;
- inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was);
- if (z->state->nowrap)
- {
- z->state->mode = DONE;
- break;
- }
- z->state->mode = CHECK4;
- case CHECK4:
- NEEDBYTE
- z->state->sub.check.need = (uLong)NEXTBYTE << 24;
- z->state->mode = CHECK3;
- case CHECK3:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE << 16;
- z->state->mode = CHECK2;
- case CHECK2:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE << 8;
- z->state->mode = CHECK1;
- case CHECK1:
- NEEDBYTE
- z->state->sub.check.need += (uLong)NEXTBYTE;
-
- if (z->state->sub.check.was != z->state->sub.check.need)
- {
- z->state->mode = BAD;
- z->msg = (char*)"incorrect data check";
- z->state->sub.marker = 5; /* can't try inflateSync */
- break;
- }
- Tracev((stderr, "inflate: zlib check ok\n"));
- z->state->mode = DONE;
- case DONE:
- return Z_STREAM_END;
- case BAD:
- return Z_DATA_ERROR;
- default:
- return Z_STREAM_ERROR;
- }
-#ifdef NEED_DUMMY_RETURN
- return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
-#endif
-}
-
-
-int ZEXPORT inflateSetDictionary(z, dictionary, dictLength)
-z_streamp z;
-const Bytef *dictionary;
-uInt dictLength;
-{
- uInt length = dictLength;
-
- if (z == Z_NULL || z->state == Z_NULL || z->state->mode != DICT0)
- return Z_STREAM_ERROR;
-
- if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR;
- z->adler = 1L;
-
- if (length >= ((uInt)1<<z->state->wbits))
- {
- length = (1<<z->state->wbits)-1;
- dictionary += dictLength - length;
- }
- inflate_set_dictionary(z->state->blocks, dictionary, length);
- z->state->mode = BLOCKS;
- return Z_OK;
-}
-
-
-int ZEXPORT inflateSync(z)
-z_streamp z;
-{
- uInt n; /* number of bytes to look at */
- Bytef *p; /* pointer to bytes */
- uInt m; /* number of marker bytes found in a row */
- uLong r, w; /* temporaries to save total_in and total_out */
-
- /* set up */
- if (z == Z_NULL || z->state == Z_NULL)
- return Z_STREAM_ERROR;
- if (z->state->mode != BAD)
- {
- z->state->mode = BAD;
- z->state->sub.marker = 0;
- }
- if ((n = z->avail_in) == 0)
- return Z_BUF_ERROR;
- p = z->next_in;
- m = z->state->sub.marker;
-
- /* search */
- while (n && m < 4)
- {
- static const Byte mark[4] = {0, 0, 0xff, 0xff};
- if (*p == mark[m])
- m++;
- else if (*p)
- m = 0;
- else
- m = 4 - m;
- p++, n--;
- }
-
- /* restore */
- z->total_in += p - z->next_in;
- z->next_in = p;
- z->avail_in = n;
- z->state->sub.marker = m;
-
- /* return no joy or set up to restart on a new block */
- if (m != 4)
- return Z_DATA_ERROR;
- r = z->total_in; w = z->total_out;
- inflateReset(z);
- z->total_in = r; z->total_out = w;
- z->state->mode = BLOCKS;
- return Z_OK;
-}
-
-
-/* Returns true if inflate is currently at the end of a block generated
- * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP
- * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH
- * but removes the length bytes of the resulting empty stored block. When
- * decompressing, PPP checks that at the end of input packet, inflate is
- * waiting for these length bytes.
- */
-int ZEXPORT inflateSyncPoint(z)
-z_streamp z;
-{
- if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL)
- return Z_STREAM_ERROR;
- return inflate_blocks_sync_point(z->state->blocks);
-}
+++ /dev/null
-/* inftrees.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-
-#if !defined(BUILDFIXED) && !defined(STDC)
-# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */
-#endif
-
-const char inflate_copyright[] =
- " inflate 1.1.3 Copyright 1995-1998 Mark Adler ";
-/*
- If you use the zlib library in a product, an acknowledgment is welcome
- in the documentation of your product. If for some reason you cannot
- include such an acknowledgment, I would appreciate that you keep this
- copyright string in the executable of your product.
- */
-struct internal_state {int dummy;}; /* for buggy compilers */
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-
-local int huft_build OF((
- uIntf *, /* code lengths in bits */
- uInt, /* number of codes */
- uInt, /* number of "simple" codes */
- const uIntf *, /* list of base values for non-simple codes */
- const uIntf *, /* list of extra bits for non-simple codes */
- inflate_huft * FAR*,/* result: starting table */
- uIntf *, /* maximum lookup bits (returns actual) */
- inflate_huft *, /* space for trees */
- uInt *, /* hufts used in space */
- uIntf * )); /* space for values */
-
-/* Tables for deflate from PKZIP's appnote.txt. */
-local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */
- 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
- 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
- /* see note #13 above about 258 */
-local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */
-local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */
- 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
- 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
- 8193, 12289, 16385, 24577};
-local const uInt cpdext[30] = { /* Extra bits for distance codes */
- 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
- 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
- 12, 12, 13, 13};
-
-/*
- Huffman code decoding is performed using a multi-level table lookup.
- The fastest way to decode is to simply build a lookup table whose
- size is determined by the longest code. However, the time it takes
- to build this table can also be a factor if the data being decoded
- is not very long. The most common codes are necessarily the
- shortest codes, so those codes dominate the decoding time, and hence
- the speed. The idea is you can have a shorter table that decodes the
- shorter, more probable codes, and then point to subsidiary tables for
- the longer codes. The time it costs to decode the longer codes is
- then traded against the time it takes to make longer tables.
-
- This results of this trade are in the variables lbits and dbits
- below. lbits is the number of bits the first level table for literal/
- length codes can decode in one step, and dbits is the same thing for
- the distance codes. Subsequent tables are also less than or equal to
- those sizes. These values may be adjusted either when all of the
- codes are shorter than that, in which case the longest code length in
- bits is used, or when the shortest code is *longer* than the requested
- table size, in which case the length of the shortest code in bits is
- used.
-
- There are two different values for the two tables, since they code a
- different number of possibilities each. The literal/length table
- codes 286 possible values, or in a flat code, a little over eight
- bits. The distance table codes 30 possible values, or a little less
- than five bits, flat. The optimum values for speed end up being
- about one bit more than those, so lbits is 8+1 and dbits is 5+1.
- The optimum values may differ though from machine to machine, and
- possibly even between compilers. Your mileage may vary.
- */
-
-
-/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */
-#define BMAX 15 /* maximum bit length of any code */
-
-local int huft_build(b, n, s, d, e, t, m, hp, hn, v)
-uIntf *b; /* code lengths in bits (all assumed <= BMAX) */
-uInt n; /* number of codes (assumed <= 288) */
-uInt s; /* number of simple-valued codes (0..s-1) */
-const uIntf *d; /* list of base values for non-simple codes */
-const uIntf *e; /* list of extra bits for non-simple codes */
-inflate_huft * FAR *t; /* result: starting table */
-uIntf *m; /* maximum lookup bits, returns actual */
-inflate_huft *hp; /* space for trees */
-uInt *hn; /* hufts used in space */
-uIntf *v; /* working area: values in order of bit length */
-/* Given a list of code lengths and a maximum table size, make a set of
- tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR
- if the given code set is incomplete (the tables are still built in this
- case), Z_DATA_ERROR if the input is invalid (an over-subscribed set of
- lengths), or Z_MEM_ERROR if not enough memory. */
-{
-
- uInt a; /* counter for codes of length k */
- uInt c[BMAX+1]; /* bit length count table */
- uInt f; /* i repeats in table every f entries */
- int g; /* maximum code length */
- int h; /* table level */
- register uInt i; /* counter, current code */
- register uInt j; /* counter */
- register int k; /* number of bits in current code */
- int l; /* bits per table (returned in m) */
- uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */
- register uIntf *p; /* pointer into c[], b[], or v[] */
- inflate_huft *q; /* points to current table */
- struct inflate_huft_s r; /* table entry for structure assignment */
- inflate_huft *u[BMAX]; /* table stack */
- register int w; /* bits before this table == (l * h) */
- uInt x[BMAX+1]; /* bit offsets, then code stack */
- uIntf *xp; /* pointer into x */
- int y; /* number of dummy codes added */
- uInt z; /* number of entries in current table */
-
-
- /* Generate counts for each bit length */
- p = c;
-#define C0 *p++ = 0;
-#define C2 C0 C0 C0 C0
-#define C4 C2 C2 C2 C2
- C4 /* clear c[]--assume BMAX+1 is 16 */
- p = b; i = n;
- do {
- c[*p++]++; /* assume all entries <= BMAX */
- } while (--i);
- if (c[0] == n) /* null input--all zero length codes */
- {
- *t = (inflate_huft *)Z_NULL;
- *m = 0;
- return Z_OK;
- }
-
-
- /* Find minimum and maximum length, bound *m by those */
- l = *m;
- for (j = 1; j <= BMAX; j++)
- if (c[j])
- break;
- k = j; /* minimum code length */
- if ((uInt)l < j)
- l = j;
- for (i = BMAX; i; i--)
- if (c[i])
- break;
- g = i; /* maximum code length */
- if ((uInt)l > i)
- l = i;
- *m = l;
-
-
- /* Adjust last length count to fill out codes, if needed */
- for (y = 1 << j; j < i; j++, y <<= 1)
- if ((y -= c[j]) < 0)
- return Z_DATA_ERROR;
- if ((y -= c[i]) < 0)
- return Z_DATA_ERROR;
- c[i] += y;
-
-
- /* Generate starting offsets into the value table for each length */
- x[1] = j = 0;
- p = c + 1; xp = x + 2;
- while (--i) { /* note that i == g from above */
- *xp++ = (j += *p++);
- }
-
-
- /* Make a table of values in order of bit lengths */
- p = b; i = 0;
- do {
- if ((j = *p++) != 0)
- v[x[j]++] = i;
- } while (++i < n);
- n = x[g]; /* set n to length of v */
-
-
- /* Generate the Huffman codes and for each, make the table entries */
- x[0] = i = 0; /* first Huffman code is zero */
- p = v; /* grab values in bit order */
- h = -1; /* no tables yet--level -1 */
- w = -l; /* bits decoded == (l * h) */
- u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */
- q = (inflate_huft *)Z_NULL; /* ditto */
- z = 0; /* ditto */
-
- /* go through the bit lengths (k already is bits in shortest code) */
- for (; k <= g; k++)
- {
- a = c[k];
- while (a--)
- {
- /* here i is the Huffman code of length k bits for value *p */
- /* make tables up to required level */
- while (k > w + l)
- {
- h++;
- w += l; /* previous table always l bits */
-
- /* compute minimum size table less than or equal to l bits */
- z = g - w;
- z = z > (uInt)l ? l : z; /* table size upper limit */
- if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
- { /* too few codes for k-w bit table */
- f -= a + 1; /* deduct codes from patterns left */
- xp = c + k;
- if (j < z)
- while (++j < z) /* try smaller tables up to z bits */
- {
- if ((f <<= 1) <= *++xp)
- break; /* enough codes to use up j bits */
- f -= *xp; /* else deduct codes from patterns */
- }
- }
- z = 1 << j; /* table entries for j-bit table */
-
- /* allocate new table */
- if (*hn + z > MANY) /* (note: doesn't matter for fixed) */
- return Z_MEM_ERROR; /* not enough memory */
- u[h] = q = hp + *hn;
- *hn += z;
-
- /* connect to last table, if there is one */
- if (h)
- {
- x[h] = i; /* save pattern for backing up */
- r.bits = (Byte)l; /* bits to dump before this table */
- r.exop = (Byte)j; /* bits in this table */
- j = i >> (w - l);
- r.base = (uInt)(q - u[h-1] - j); /* offset to this table */
- u[h-1][j] = r; /* connect to last table */
- }
- else
- *t = q; /* first table is returned result */
- }
-
- /* set up table entry in r */
- r.bits = (Byte)(k - w);
- if (p >= v + n)
- r.exop = 128 + 64; /* out of values--invalid code */
- else if (*p < s)
- {
- r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */
- r.base = *p++; /* simple code is just the value */
- }
- else
- {
- r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */
- r.base = d[*p++ - s];
- }
-
- /* fill code-like entries with r */
- f = 1 << (k - w);
- for (j = i >> w; j < z; j += f)
- q[j] = r;
-
- /* backwards increment the k-bit code i */
- for (j = 1 << (k - 1); i & j; j >>= 1)
- i ^= j;
- i ^= j;
-
- /* backup over finished tables */
- mask = (1 << w) - 1; /* needed on HP, cc -O bug */
- while ((i & mask) != x[h])
- {
- h--; /* don't need to update q */
- w -= l;
- mask = (1 << w) - 1;
- }
- }
- }
-
-
- /* Return Z_BUF_ERROR if we were given an incomplete table */
- return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK;
-}
-
-
-int inflate_trees_bits(c, bb, tb, hp, z)
-uIntf *c; /* 19 code lengths */
-uIntf *bb; /* bits tree desired/actual depth */
-inflate_huft * FAR *tb; /* bits tree result */
-inflate_huft *hp; /* space for trees */
-z_streamp z; /* for messages */
-{
- int r;
- uInt hn = 0; /* hufts used in space */
- uIntf *v; /* work area for huft_build */
-
- if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL)
- return Z_MEM_ERROR;
- r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL,
- tb, bb, hp, &hn, v);
- if (r == Z_DATA_ERROR)
- z->msg = (char*)"oversubscribed dynamic bit lengths tree";
- else if (r == Z_BUF_ERROR || *bb == 0)
- {
- z->msg = (char*)"incomplete dynamic bit lengths tree";
- r = Z_DATA_ERROR;
- }
- ZFREE(z, v);
- return r;
-}
-
-
-int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z)
-uInt nl; /* number of literal/length codes */
-uInt nd; /* number of distance codes */
-uIntf *c; /* that many (total) code lengths */
-uIntf *bl; /* literal desired/actual bit depth */
-uIntf *bd; /* distance desired/actual bit depth */
-inflate_huft * FAR *tl; /* literal/length tree result */
-inflate_huft * FAR *td; /* distance tree result */
-inflate_huft *hp; /* space for trees */
-z_streamp z; /* for messages */
-{
- int r;
- uInt hn = 0; /* hufts used in space */
- uIntf *v; /* work area for huft_build */
-
- /* allocate work area */
- if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
- return Z_MEM_ERROR;
-
- /* build literal/length tree */
- r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v);
- if (r != Z_OK || *bl == 0)
- {
- if (r == Z_DATA_ERROR)
- z->msg = (char*)"oversubscribed literal/length tree";
- else if (r != Z_MEM_ERROR)
- {
- z->msg = (char*)"incomplete literal/length tree";
- r = Z_DATA_ERROR;
- }
- ZFREE(z, v);
- return r;
- }
-
- /* build distance tree */
- r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v);
- if (r != Z_OK || (*bd == 0 && nl > 257))
- {
- if (r == Z_DATA_ERROR)
- z->msg = (char*)"oversubscribed distance tree";
- else if (r == Z_BUF_ERROR) {
-#ifdef PKZIP_BUG_WORKAROUND
- r = Z_OK;
- }
-#else
- z->msg = (char*)"incomplete distance tree";
- r = Z_DATA_ERROR;
- }
- else if (r != Z_MEM_ERROR)
- {
- z->msg = (char*)"empty distance tree with lengths";
- r = Z_DATA_ERROR;
- }
- ZFREE(z, v);
- return r;
-#endif
- }
-
- /* done */
- ZFREE(z, v);
- return Z_OK;
-}
-
-
-/* build fixed tables only once--keep them here */
-#ifdef BUILDFIXED
-local int fixed_built = 0;
-#define FIXEDH 544 /* number of hufts used by fixed tables */
-local inflate_huft fixed_mem[FIXEDH];
-local uInt fixed_bl;
-local uInt fixed_bd;
-local inflate_huft *fixed_tl;
-local inflate_huft *fixed_td;
-#else
-#include "inffixed.h"
-#endif
-
-
-int inflate_trees_fixed(bl, bd, tl, td, z)
-uIntf *bl; /* literal desired/actual bit depth */
-uIntf *bd; /* distance desired/actual bit depth */
-inflate_huft * FAR *tl; /* literal/length tree result */
-inflate_huft * FAR *td; /* distance tree result */
-z_streamp z; /* for memory allocation */
-{
-#ifdef BUILDFIXED
- /* build fixed tables if not already */
- if (!fixed_built)
- {
- int k; /* temporary variable */
- uInt f = 0; /* number of hufts used in fixed_mem */
- uIntf *c; /* length list for huft_build */
- uIntf *v; /* work area for huft_build */
-
- /* allocate memory */
- if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
- return Z_MEM_ERROR;
- if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
- {
- ZFREE(z, c);
- return Z_MEM_ERROR;
- }
-
- /* literal table */
- for (k = 0; k < 144; k++)
- c[k] = 8;
- for (; k < 256; k++)
- c[k] = 9;
- for (; k < 280; k++)
- c[k] = 7;
- for (; k < 288; k++)
- c[k] = 8;
- fixed_bl = 9;
- huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl,
- fixed_mem, &f, v);
-
- /* distance table */
- for (k = 0; k < 30; k++)
- c[k] = 5;
- fixed_bd = 5;
- huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd,
- fixed_mem, &f, v);
-
- /* done */
- ZFREE(z, v);
- ZFREE(z, c);
- fixed_built = 1;
- }
-#endif
- *bl = fixed_bl;
- *bd = fixed_bd;
- *tl = fixed_tl;
- *td = fixed_td;
- return Z_OK;
-}
+++ /dev/null
-/* inftrees.h -- header to use inftrees.c
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* Huffman code lookup table entry--this entry is four bytes for machines
- that have 16-bit pointers (e.g. PC's in the small or medium model). */
-
-typedef struct inflate_huft_s FAR inflate_huft;
-
-struct inflate_huft_s {
- union {
- struct {
- Byte Exop; /* number of extra bits or operation */
- Byte Bits; /* number of bits in this code or subcode */
- } what;
- uInt pad; /* pad structure to a power of 2 (4 bytes for */
- } word; /* 16-bit, 8 bytes for 32-bit int's) */
- uInt base; /* literal, length base, distance base,
- or table offset */
-};
-
-/* Maximum size of dynamic tree. The maximum found in a long but non-
- exhaustive search was 1004 huft structures (850 for length/literals
- and 154 for distances, the latter actually the result of an
- exhaustive search). The actual maximum is not known, but the
- value below is more than safe. */
-#define MANY 1440
-
-extern int inflate_trees_bits OF((
- uIntf *, /* 19 code lengths */
- uIntf *, /* bits tree desired/actual depth */
- inflate_huft * FAR *, /* bits tree result */
- inflate_huft *, /* space for trees */
- z_streamp)); /* for messages */
-
-extern int inflate_trees_dynamic OF((
- uInt, /* number of literal/length codes */
- uInt, /* number of distance codes */
- uIntf *, /* that many (total) code lengths */
- uIntf *, /* literal desired/actual bit depth */
- uIntf *, /* distance desired/actual bit depth */
- inflate_huft * FAR *, /* literal/length tree result */
- inflate_huft * FAR *, /* distance tree result */
- inflate_huft *, /* space for trees */
- z_streamp)); /* for messages */
-
-extern int inflate_trees_fixed OF((
- uIntf *, /* literal desired/actual bit depth */
- uIntf *, /* distance desired/actual bit depth */
- inflate_huft * FAR *, /* literal/length tree result */
- inflate_huft * FAR *, /* distance tree result */
- z_streamp)); /* for memory allocation */
+++ /dev/null
-/* inflate_util.c -- data and routines common to blocks and codes
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#include "zutil.h"
-#include "infblock.h"
-#include "inftrees.h"
-#include "infcodes.h"
-#include "infutil.h"
-
-struct inflate_codes_state {int dummy;}; /* for buggy compilers */
-
-/* And'ing with mask[n] masks the lower n bits */
-uInt inflate_mask[17] = {
- 0x0000,
- 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
- 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
-};
-
-
-/* copy as much as possible from the sliding window to the output area */
-int inflate_flush(s, z, r)
-inflate_blocks_statef *s;
-z_streamp z;
-int r;
-{
- uInt n;
- Bytef *p;
- Bytef *q;
-
- /* local copies of source and destination pointers */
- p = z->next_out;
- q = s->read;
-
- /* compute number of bytes to copy as far as end of window */
- n = (uInt)((q <= s->write ? s->write : s->end) - q);
- if (n > z->avail_out) n = z->avail_out;
- if (n && r == Z_BUF_ERROR) r = Z_OK;
-
- /* update counters */
- z->avail_out -= n;
- z->total_out += n;
-
- /* update check information */
- if (s->checkfn != Z_NULL)
- z->adler = s->check = (*s->checkfn)(s->check, q, n);
-
- /* copy as far as end of window */
- zmemcpy(p, q, n);
- p += n;
- q += n;
-
- /* see if more to copy at beginning of window */
- if (q == s->end)
- {
- /* wrap pointers */
- q = s->window;
- if (s->write == s->end)
- s->write = s->window;
-
- /* compute bytes to copy */
- n = (uInt)(s->write - q);
- if (n > z->avail_out) n = z->avail_out;
- if (n && r == Z_BUF_ERROR) r = Z_OK;
-
- /* update counters */
- z->avail_out -= n;
- z->total_out += n;
-
- /* update check information */
- if (s->checkfn != Z_NULL)
- z->adler = s->check = (*s->checkfn)(s->check, q, n);
-
- /* copy */
- zmemcpy(p, q, n);
- p += n;
- q += n;
- }
-
- /* update pointers */
- z->next_out = p;
- s->read = q;
-
- /* done */
- return r;
-}
+++ /dev/null
-/* infutil.h -- types and macros common to blocks and codes
- * Copyright (C) 1995-1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-#ifndef _INFUTIL_H
-#define _INFUTIL_H
-
-typedef enum {
- TYPE, /* get type bits (3, including end bit) */
- LENS, /* get lengths for stored */
- STORED, /* processing stored block */
- TABLE, /* get table lengths */
- BTREE, /* get bit lengths tree for a dynamic block */
- DTREE, /* get length, distance trees for a dynamic block */
- CODES, /* processing fixed or dynamic block */
- DRY, /* output remaining window bytes */
- DONE, /* finished last block, done */
- BAD} /* got a data error--stuck here */
-inflate_block_mode;
-
-/* inflate blocks semi-private state */
-struct inflate_blocks_state {
-
- /* mode */
- inflate_block_mode mode; /* current inflate_block mode */
-
- /* mode dependent information */
- union {
- uInt left; /* if STORED, bytes left to copy */
- struct {
- uInt table; /* table lengths (14 bits) */
- uInt index; /* index into blens (or border) */
- uIntf *blens; /* bit lengths of codes */
- uInt bb; /* bit length tree depth */
- inflate_huft *tb; /* bit length decoding tree */
- } trees; /* if DTREE, decoding info for trees */
- struct {
- inflate_codes_statef
- *codes;
- } decode; /* if CODES, current state */
- } sub; /* submode */
- uInt last; /* true if this block is the last block */
-
- /* mode independent information */
- uInt bitk; /* bits in bit buffer */
- uLong bitb; /* bit buffer */
- inflate_huft *hufts; /* single malloc for tree space */
- Bytef *window; /* sliding window */
- Bytef *end; /* one byte after sliding window */
- Bytef *read; /* window read pointer */
- Bytef *write; /* window write pointer */
- check_func checkfn; /* check function */
- uLong check; /* check on output */
-
-};
-
-
-/* defines for inflate input/output */
-/* update pointers and return */
-#define UPDBITS {s->bitb=b;s->bitk=k;}
-#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
-#define UPDOUT {s->write=q;}
-#define UPDATE {UPDBITS UPDIN UPDOUT}
-#define LEAVE {UPDATE return inflate_flush(s,z,r);}
-/* get bytes and bits */
-#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
-#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
-#define NEXTBYTE (n--,*p++)
-#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
-#define DUMPBITS(j) {b>>=(j);k-=(j);}
-/* output bytes */
-#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q)
-#define LOADOUT {q=s->write;m=(uInt)WAVAIL;}
-#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}}
-#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
-#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
-#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
-/* load local pointers */
-#define LOAD {LOADIN LOADOUT}
-
-/* masks for lower bits (size given to avoid silly warnings with Visual C++) */
-extern uInt inflate_mask[17];
-
-/* copy as much as possible from the sliding window to the output area */
-extern int inflate_flush OF((
- inflate_blocks_statef *,
- z_streamp ,
- int));
-
-struct internal_state {int dummy;}; /* for buggy compilers */
-
-#endif
+++ /dev/null
-/* maketree.c -- make inffixed.h table for decoding fixed codes
- * Copyright (C) 1998 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* This program is included in the distribution for completeness.
- You do not need to compile or run this program since inffixed.h
- is already included in the distribution. To use this program
- you need to compile zlib with BUILDFIXED defined and then compile
- and link this program with the zlib library. Then the output of
- this program can be piped to inffixed.h. */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include "zutil.h"
-#include "inftrees.h"
-
-/* simplify the use of the inflate_huft type with some defines */
-#define exop word.what.Exop
-#define bits word.what.Bits
-
-/* generate initialization table for an inflate_huft structure array */
-void maketree(uInt b, inflate_huft *t)
-{
- int i, e;
-
- i = 0;
- while (1)
- {
- e = t[i].exop;
- if (e && (e & (16+64)) == 0) /* table pointer */
- {
- fprintf(stderr, "maketree: cannot initialize sub-tables!\n");
- exit(1);
- }
- if (i % 4 == 0)
- printf("\n ");
- printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base);
- if (++i == (1<<b))
- break;
- putchar(',');
- }
- puts("");
-}
-
-/* create the fixed tables in C initialization syntax */
-void main(void)
-{
- int r;
- uInt bl, bd;
- inflate_huft *tl, *td;
- z_stream z;
-
- z.zalloc = zcalloc;
- z.opaque = (voidpf)0;
- z.zfree = zcfree;
- r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z);
- if (r)
- {
- fprintf(stderr, "inflate_trees_fixed error %d\n", r);
- return;
- }
- puts("/* inffixed.h -- table for decoding fixed codes");
- puts(" * Generated automatically by the maketree.c program");
- puts(" */");
- puts("");
- puts("/* WARNING: this file should *not* be used by applications. It is");
- puts(" part of the implementation of the compression library and is");
- puts(" subject to change. Applications should only use zlib.h.");
- puts(" */");
- puts("");
- printf("local uInt fixed_bl = %d;\n", bl);
- printf("local uInt fixed_bd = %d;\n", bd);
- printf("local inflate_huft fixed_tl[] = {");
- maketree(bl, tl);
- puts(" };");
- printf("local inflate_huft fixed_td[] = {");
- maketree(bd, td);
- puts(" };");
-}
+++ /dev/null
-/* minigzip.c -- simulate gzip using the zlib compression library
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * minigzip is a minimal implementation of the gzip utility. This is
- * only an example of using zlib and isn't meant to replace the
- * full-featured gzip. No attempt is made to deal with file systems
- * limiting names to 14 or 8+3 characters, etc... Error checking is
- * very limited. So use minigzip only for testing; use gzip for the
- * real thing. On MSDOS, use only on file names without extension
- * or in pipe mode.
- */
-
-/* @(#) $Id: minigzip.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include <stdio.h>
-#include "zlib.h"
-
-#ifdef STDC
-# include <string.h>
-# include <stdlib.h>
-#else
- extern void exit OF((int));
-#endif
-
-#ifdef USE_MMAP
-# include <sys/types.h>
-# include <sys/mman.h>
-# include <sys/stat.h>
-#endif
-
-#if defined(MSDOS) || defined(OS2) || defined(WIN32)
-# include <fcntl.h>
-# include <io.h>
-# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
-#else
-# define SET_BINARY_MODE(file)
-#endif
-
-#ifdef VMS
-# define unlink delete
-# define GZ_SUFFIX "-gz"
-#endif
-#ifdef RISCOS
-# define unlink remove
-# define GZ_SUFFIX "-gz"
-# define fileno(file) file->__file
-#endif
-#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-# include <unix.h> /* for fileno */
-#endif
-
-#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
- extern int unlink OF((const char *));
-#endif
-
-#ifndef GZ_SUFFIX
-# define GZ_SUFFIX ".gz"
-#endif
-#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
-
-#define BUFLEN 16384
-#define MAX_NAME_LEN 1024
-
-#ifdef MAXSEG_64K
-# define local static
- /* Needed for systems with limitation on stack size. */
-#else
-# define local
-#endif
-
-char *prog;
-
-void error OF((const char *msg));
-void gz_compress OF((FILE *in, gzFile out));
-#ifdef USE_MMAP
-int gz_compress_mmap OF((FILE *in, gzFile out));
-#endif
-void gz_uncompress OF((gzFile in, FILE *out));
-void file_compress OF((char *file, char *mode));
-void file_uncompress OF((char *file));
-int main OF((int argc, char *argv[]));
-
-/* ===========================================================================
- * Display error message and exit
- */
-void error(msg)
- const char *msg;
-{
- fprintf(stderr, "%s: %s\n", prog, msg);
- exit(1);
-}
-
-/* ===========================================================================
- * Compress input to output then close both files.
- */
-
-void gz_compress(in, out)
- FILE *in;
- gzFile out;
-{
- local char buf[BUFLEN];
- int len;
- int err;
-
-#ifdef USE_MMAP
- /* Try first compressing with mmap. If mmap fails (minigzip used in a
- * pipe), use the normal fread loop.
- */
- if (gz_compress_mmap(in, out) == Z_OK) return;
-#endif
- for (;;) {
- len = fread(buf, 1, sizeof(buf), in);
- if (ferror(in)) {
- perror("fread");
- exit(1);
- }
- if (len == 0) break;
-
- if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
- }
- fclose(in);
- if (gzclose(out) != Z_OK) error("failed gzclose");
-}
-
-#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
-
-/* Try compressing the input file at once using mmap. Return Z_OK if
- * if success, Z_ERRNO otherwise.
- */
-int gz_compress_mmap(in, out)
- FILE *in;
- gzFile out;
-{
- int len;
- int err;
- int ifd = fileno(in);
- caddr_t buf; /* mmap'ed buffer for the entire input file */
- off_t buf_len; /* length of the input file */
- struct stat sb;
-
- /* Determine the size of the file, needed for mmap: */
- if (fstat(ifd, &sb) < 0) return Z_ERRNO;
- buf_len = sb.st_size;
- if (buf_len <= 0) return Z_ERRNO;
-
- /* Now do the actual mmap: */
- buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
- if (buf == (caddr_t)(-1)) return Z_ERRNO;
-
- /* Compress the whole file at once: */
- len = gzwrite(out, (char *)buf, (unsigned)buf_len);
-
- if (len != (int)buf_len) error(gzerror(out, &err));
-
- munmap(buf, buf_len);
- fclose(in);
- if (gzclose(out) != Z_OK) error("failed gzclose");
- return Z_OK;
-}
-#endif /* USE_MMAP */
-
-/* ===========================================================================
- * Uncompress input to output then close both files.
- */
-void gz_uncompress(in, out)
- gzFile in;
- FILE *out;
-{
- local char buf[BUFLEN];
- int len;
- int err;
-
- for (;;) {
- len = gzread(in, buf, sizeof(buf));
- if (len < 0) error (gzerror(in, &err));
- if (len == 0) break;
-
- if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
- error("failed fwrite");
- }
- }
- if (fclose(out)) error("failed fclose");
-
- if (gzclose(in) != Z_OK) error("failed gzclose");
-}
-
-
-/* ===========================================================================
- * Compress the given file: create a corresponding .gz file and remove the
- * original.
- */
-void file_compress(file, mode)
- char *file;
- char *mode;
-{
- local char outfile[MAX_NAME_LEN];
- FILE *in;
- gzFile out;
-
- strcpy(outfile, file);
- strcat(outfile, GZ_SUFFIX);
-
- in = fopen(file, "rb");
- if (in == NULL) {
- perror(file);
- exit(1);
- }
- out = gzopen(outfile, mode);
- if (out == NULL) {
- fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
- exit(1);
- }
- gz_compress(in, out);
-
- unlink(file);
-}
-
-
-/* ===========================================================================
- * Uncompress the given file and remove the original.
- */
-void file_uncompress(file)
- char *file;
-{
- local char buf[MAX_NAME_LEN];
- char *infile, *outfile;
- FILE *out;
- gzFile in;
- int len = strlen(file);
-
- strcpy(buf, file);
-
- if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
- infile = file;
- outfile = buf;
- outfile[len-3] = '\0';
- } else {
- outfile = file;
- infile = buf;
- strcat(infile, GZ_SUFFIX);
- }
- in = gzopen(infile, "rb");
- if (in == NULL) {
- fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
- exit(1);
- }
- out = fopen(outfile, "wb");
- if (out == NULL) {
- perror(file);
- exit(1);
- }
-
- gz_uncompress(in, out);
-
- unlink(infile);
-}
-
-
-/* ===========================================================================
- * Usage: minigzip [-d] [-f] [-h] [-1 to -9] [files...]
- * -d : decompress
- * -f : compress with Z_FILTERED
- * -h : compress with Z_HUFFMAN_ONLY
- * -1 to -9 : compression level
- */
-
-int main(argc, argv)
- int argc;
- char *argv[];
-{
- int uncompr = 0;
- gzFile file;
- char outmode[20];
-
- strcpy(outmode, "wb6 ");
-
- prog = argv[0];
- argc--, argv++;
-
- while (argc > 0) {
- if (strcmp(*argv, "-d") == 0)
- uncompr = 1;
- else if (strcmp(*argv, "-f") == 0)
- outmode[3] = 'f';
- else if (strcmp(*argv, "-h") == 0)
- outmode[3] = 'h';
- else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
- (*argv)[2] == 0)
- outmode[2] = (*argv)[1];
- else
- break;
- argc--, argv++;
- }
- if (argc == 0) {
- SET_BINARY_MODE(stdin);
- SET_BINARY_MODE(stdout);
- if (uncompr) {
- file = gzdopen(fileno(stdin), "rb");
- if (file == NULL) error("can't gzdopen stdin");
- gz_uncompress(file, stdout);
- } else {
- file = gzdopen(fileno(stdout), outmode);
- if (file == NULL) error("can't gzdopen stdout");
- gz_compress(stdin, file);
- }
- } else {
- do {
- if (uncompr) {
- file_uncompress(*argv);
- } else {
- file_compress(*argv, outmode);
- }
- } while (argv++, --argc);
- }
- exit(0);
- return 0; /* to avoid warning */
-}
+++ /dev/null
-# Makefile for zlib
-# Borland C++
-
-# This version of the zlib makefile was adapted by Chris Young for use
-# with Borland C 4.5x with the Dos Power Pack for a 32-bit protected mode
-# flat memory model. It was created for use with POV-Ray ray tracer and
-# you may choose to edit the CFLAGS to suit your needs but the
-# switches -WX and -DMSDOS are required.
-# -- Chris Young 76702.1655@compuserve.com
-
-# To use, do "make -fmakefile.b32"
-
-# See zconf.h for details about the memory requirements.
-
-# ------------- Borland C++ -------------
-MODEL=-WX
-CFLAGS= $(MODEL) -P-C -K -N- -k- -d -3 -r- -v- -f -DMSDOS
-CC=bcc32
-LD=bcc32
-LIB=tlib
-LDFLAGS= $(MODEL)
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2)
- del zlib.lib
- $(LIB) zlib +$(OBJP1)
- $(LIB) zlib +$(OBJP2)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# Borland C++ ************ UNTESTED ***********
-
-# To use, do "make -fmakefile.bor"
-# To compile in small model, set below: MODEL=s
-
-# WARNING: the small model is supported but only for small values of
-# MAX_WBITS and MAX_MEM_LEVEL. For example:
-# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to the LOC macro below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Turbo C++, Borland C++ -------------
-
-# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
-# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
-# to the declaration of LOC here:
-LOC = $(LOCAL_ZLIB)
-
-# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
-CPU_TYP = 0
-
-# Memory model: one of s, m, c, l (small, medium, compact, large)
-MODEL=l
-
-CC=bcc
-# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
-LD=$(CC)
-AR=tlib
-
-# compiler flags
-CFLAGS=-O2 -Z -m$(MODEL) $(LOC)
-# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0
-
-LDFLAGS=-m$(MODEL)
-
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-ZLIB_H = zlib.h zconf.h
-ZUTIL_H = zutil.h $(ZLIB_H)
-
-ZLIB_LIB = zlib_$(MODEL).lib
-
-all: test
-
-# individual dependencies and action rules:
-adler32.obj: adler32.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c $(ZUTIL_H) infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-$(ZLIB_LIB): $(OBJ1) $(OBJ2)
- del $(ZLIB_LIB)
- $(AR) $(ZLIB_LIB) +$(OBJP1)
- $(AR) $(ZLIB_LIB) +$(OBJP2)
-
-example.exe: example.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
-
-minigzip.exe: minigzip.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib. Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96.
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.dj2; make test -fmakefile.dj2
-#
-# To install libz.a, zconf.h and zlib.h in the djgpp directories, type:
-#
-# make install -fmakefile.dj2
-#
-# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as
-# in the sample below if the pattern of the DJGPP distribution is to
-# be followed. Remember that, while <sp>'es around <=> are ignored in
-# makefiles, they are *not* in batch files or in djgpp.env.
-# - - - - -
-# [make]
-# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include
-# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib
-# BUTT=-m486
-# - - - - -
-# Alternately, these variables may be defined below, overriding the values
-# in djgpp.env, as
-# INCLUDE_PATH=c:\usr\include
-# LIBRARY_PATH=c:\usr\lib
-
-CC=gcc
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is available, replace "copy /Y" with "cp -fp" .
-CP=copy /Y
-# If gnu install.exe is available, replace $(CP) with ginstall.
-INSTALL=$(CP)
-# The default value of RM is "rm -f." If "rm.exe" is found, comment out:
-RM=del
-LDLIBS=-L. -lz
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=libz.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-libz.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
-
-.PHONY : uninstall clean
-
-install: $(INCL) $(LIBS)
- -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH)
- -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH)
- $(INSTALL) zlib.h $(INCLUDE_PATH)
- $(INSTALL) zconf.h $(INCLUDE_PATH)
- $(INSTALL) libz.a $(LIBRARY_PATH)
-
-uninstall:
- $(RM) $(INCLUDE_PATH)\zlib.h
- $(RM) $(INCLUDE_PATH)\zconf.h
- $(RM) $(LIBRARY_PATH)\libz.a
-
-clean:
- $(RM) *.d
- $(RM) *.o
- $(RM) *.exe
- $(RM) libz.a
- $(RM) foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
+++ /dev/null
-# Makefile for zlib. Modified for emx 0.9c by Chr. Spieler, 6/17/98.
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.emx; make test -fmakefile.emx
-#
-
-CC=gcc
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is available, replace "copy /Y" with "cp -fp" .
-CP=copy /Y
-# If gnu install.exe is available, replace $(CP) with ginstall.
-INSTALL=$(CP)
-# The default value of RM is "rm -f." If "rm.exe" is found, comment out:
-RM=del
-LDLIBS=-L. -lzlib
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=zlib.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-zlib.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-
-.PHONY : clean
-
-clean:
- $(RM) *.d
- $(RM) *.o
- $(RM) *.exe
- $(RM) zlib.a
- $(RM) foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
+++ /dev/null
-# Makefile for zlib
-# Microsoft C 5.1 or later
-
-# To use, do "make makefile.msc"
-# To compile in small model, set below: MODEL=S
-
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to the LOC macro below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Microsoft C 5.1 and later -------------
-
-# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
-# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
-# to the declaration of LOC here:
-LOC = $(LOCAL_ZLIB)
-
-# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
-CPU_TYP = 0
-
-# Memory model: one of S, M, C, L (small, medium, compact, large)
-MODEL=L
-
-CC=cl
-CFLAGS=-nologo -A$(MODEL) -G$(CPU_TYP) -W3 -Oait -Gs $(LOC)
-#-Ox generates bad code with MSC 5.1
-LIB_CFLAGS=-Zl $(CFLAGS)
-
-LD=link
-LDFLAGS=/noi/e/st:0x1500/noe/farcall/packcode
-# "/farcall/packcode" are only useful for `large code' memory models
-# but should be a "no-op" for small code models.
-
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-ZLIB_H = zlib.h zconf.h
-ZUTIL_H = zutil.h $(ZLIB_H)
-
-ZLIB_LIB = zlib_$(MODEL).lib
-
-all: $(ZLIB_LIB) example.exe minigzip.exe
-
-# individual dependencies and action rules:
-adler32.obj: adler32.c $(ZLIB_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-compress.obj: compress.c $(ZLIB_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-crc32.obj: crc32.c $(ZLIB_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h $(ZUTIL_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-gzio.obj: gzio.c $(ZUTIL_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-inflate.obj: inflate.c $(ZUTIL_H) infblock.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h $(ZUTIL_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-uncompr.obj: uncompr.c $(ZLIB_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-zutil.obj: zutil.c $(ZUTIL_H)
- $(CC) -c $(LIB_CFLAGS) $*.c
-
-example.obj: example.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-$(ZLIB_LIB): $(OBJ1) $(OBJ2)
- if exist $(ZLIB_LIB) del $(ZLIB_LIB)
- lib $(ZLIB_LIB) $(OBJ1);
- lib $(ZLIB_LIB) $(OBJ2);
-
-example.exe: example.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) example.obj,,,$(ZLIB_LIB);
-
-minigzip.exe: minigzip.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) minigzip.obj,,,$(ZLIB_LIB);
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# TurboC 2.0
-
-# To use, do "make -fmakefile.tc"
-# To compile in small model, set below: MODEL=-ms
-
-# WARNING: the small model is supported but only for small values of
-# MAX_WBITS and MAX_MEM_LEVEL. For example:
-# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to CFLAGS below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Turbo C 2.0 -------------
-MODEL=l
-# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
-CFLAGS=-O2 -G -Z -m$(MODEL)
-CC=tcc -I\tc\include
-LD=tcc -L\tc\lib
-AR=tlib
-LDFLAGS=-m$(MODEL) -f-
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-ZLIB_H = zlib.h zconf.h
-ZUTIL_H = zutil.h $(ZLIB_H)
-
-ZLIB_LIB = zlib_$(MODEL).lib
-
-all: test
-
-adler32.obj: adler32.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c $(ZUTIL_H) infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c $(ZUTIL_H)
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c $(ZLIB_H)
- $(CC) -c $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-$(ZLIB_LIB): $(OBJ1) $(OBJ2)
- del $(ZLIB_LIB)
- $(AR) $(ZLIB_LIB) +$(OBJP1)
- $(AR) $(ZLIB_LIB) +$(OBJP2)
-
-example.exe: example.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) -eexample.exe example.obj $(ZLIB_LIB)
-
-minigzip.exe: minigzip.obj $(ZLIB_LIB)
- $(LD) $(LDFLAGS) -eminigzip.exe minigzip.obj $(ZLIB_LIB)
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# Microsoft 32-bit Visual C++ 4.0 or later (may work on earlier versions)
-
-# To use, do "nmake /f makefile.w32"
-
-# If you wish to reduce the memory requirements (default 256K for big
-# objects plus a few K), you can add to CFLAGS below:
-# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
-# See zconf.h for details about the memory requirements.
-
-# ------------- Microsoft Visual C++ 4.0 and later -------------
-MODEL=
-CFLAGS=-Ox -GA3s -nologo -W3
-CC=cl
-LD=link
-LDFLAGS=
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\
- infutil$(O)+inffast$(O)
-
-all: zlib.lib example.exe minigzip.exe
-
-adler32.obj: adler32.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(CFLAGS) $*.c
-
-zlib.lib: $(OBJ1) $(OBJ2)
- if exist zlib.lib del zlib.lib
- lib /OUT:zlib.lib $(OBJ1) $(OBJ2)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib /OUT:example.exe /SUBSYSTEM:CONSOLE
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib /OUT:minigzip.exe /SUBSYSTEM:CONSOLE
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-# Makefile for zlib
-# Watcom 10a
-
-# This version of the zlib makefile was adapted by Chris Young for use
-# with Watcom 10a 32-bit protected mode flat memory model. It was created
-# for use with POV-Ray ray tracer and you may choose to edit the CFLAGS to
-# suit your needs but the -DMSDOS is required.
-# -- Chris Young 76702.1655@compuserve.com
-
-# To use, do "wmake -f makefile.wat"
-
-# See zconf.h for details about the memory requirements.
-
-# ------------- Watcom 10a -------------
-MODEL=-mf
-CFLAGS= $(MODEL) -fpi87 -fp5 -zp4 -5r -w5 -oneatx -DMSDOS
-CC=wcc386
-LD=wcl386
-LIB=wlib -b -c
-LDFLAGS=
-O=.obj
-
-# variables
-OBJ1=adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O)
-OBJ2=trees$(O) zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O)
-OBJ3=infutil$(O) inffast$(O)
-OBJP1=adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)
-OBJP2=trees$(O)+zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)
-OBJP3=infutil$(O)+inffast$(O)
-
-all: test
-
-adler32.obj: adler32.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h &
- infcodes.h infutil.h
- $(CC) $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h &
- infcodes.h inffast.h
- $(CC) $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) $(CFLAGS) $*.c
-
-# we must cut the command line to fit in the MS/DOS 128 byte limit:
-zlib.lib: $(OBJ1) $(OBJ2) $(OBJ3)
- del zlib.lib
- $(LIB) zlib.lib +$(OBJP1)
- $(LIB) zlib.lib +$(OBJP2)
- $(LIB) zlib.lib +$(OBJP3)
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: minigzip.exe example.exe
- example
- echo hello world | minigzip | minigzip -d >test
- type test
-
-#clean:
-# del *.obj
-# del *.exe
+++ /dev/null
-LIBRARY "zlib"
-
-DESCRIPTION '"""zlib data compression library"""'
-
-EXETYPE NT
-
-SUBSYSTEM WINDOWS
-
-STUB 'WINSTUB.EXE'
-
-VERSION 1.13
-
-CODE EXECUTE READ
-
-DATA READ WRITE
-
-HEAPSIZE 1048576,4096
-
-EXPORTS
- adler32 @1
- compress @2
- crc32 @3
- deflate @4
- deflateCopy @5
- deflateEnd @6
- deflateInit2_ @7
- deflateInit_ @8
- deflateParams @9
- deflateReset @10
- deflateSetDictionary @11
- gzclose @12
- gzdopen @13
- gzerror @14
- gzflush @15
- gzopen @16
- gzread @17
- gzwrite @18
- inflate @19
- inflateEnd @20
- inflateInit2_ @21
- inflateInit_ @22
- inflateReset @23
- inflateSetDictionary @24
- inflateSync @25
- uncompress @26
- zlibVersion @27
- gzprintf @28
- gzputc @29
- gzgetc @30
- gzseek @31
- gzrewind @32
- gztell @33
- gzeof @34
- gzsetparams @35
- zError @36
- inflateSyncPoint @37
- get_crc_table @38
- compress2 @39
- gzputs @40
- gzgets @41
+++ /dev/null
-#include <windows.h>
-
-#define IDR_VERSION1 1
-IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE
- FILEVERSION 1,1,3,0
- PRODUCTVERSION 1,1,3,0
- FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
- FILEFLAGS 0
- FILEOS VOS_DOS_WINDOWS32
- FILETYPE VFT_DLL
- FILESUBTYPE 0 // not used
-BEGIN
- BLOCK "StringFileInfo"
- BEGIN
- BLOCK "040904E4"
- //language ID = U.S. English, char set = Windows, Multilingual
-
- BEGIN
- VALUE "FileDescription", "zlib data compression library\0"
- VALUE "FileVersion", "1.1.3\0"
- VALUE "InternalName", "zlib\0"
- VALUE "OriginalFilename", "zlib.dll\0"
- VALUE "ProductName", "ZLib.DLL\0"
- VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
- VALUE "LegalCopyright", "(C) 1995-1998 Jean-loup Gailly & Mark Adler\0"
- END
- END
- BLOCK "VarFileInfo"
- BEGIN
- VALUE "Translation", 0x0409, 1252
- END
-END
+++ /dev/null
-# Makefile for zlib. Modified for emx/rsxnt by Chr. Spieler, 6/16/98.
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.emx; make test -fmakefile.emx
-#
-
-CC=gcc -Zwin32
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is available, replace "copy /Y" with "cp -fp" .
-CP=copy /Y
-# If gnu install.exe is available, replace $(CP) with ginstall.
-INSTALL=$(CP)
-# The default value of RM is "rm -f." If "rm.exe" is found, comment out:
-RM=del
-LDLIBS=-L. -lzlib
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=zlib.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-zlib.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-
-.PHONY : clean
-
-clean:
- $(RM) *.d
- $(RM) *.o
- $(RM) *.exe
- $(RM) zlib.a
- $(RM) foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
-# Makefile for zlib. Modified for emx 0.9c by Chr. Spieler, 6/17/98.
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.emx; make test -fmakefile.emx
-#
-
-CC=gcc
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is available, replace "copy /Y" with "cp -fp" .
-CP=copy /Y
-# If gnu install.exe is available, replace $(CP) with ginstall.
-INSTALL=$(CP)
-# The default value of RM is "rm -f." If "rm.exe" is found, comment out:
-RM=del
-LDLIBS=-L. -lzlib
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=zlib.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-zlib.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-
-.PHONY : clean
-
-clean:
- $(RM) *.d
- $(RM) *.o
- $(RM) *.exe
- $(RM) zlib.a
- $(RM) foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
+++ /dev/null
-# Makefile for zlib. Modified for mingw32 by C. Spieler, 6/16/98.
-# (This Makefile is directly derived from Makefile.dj2)
-# Copyright (C) 1995-1998 Jean-loup Gailly.
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile, or to compile and test, type:
-#
-# make -fmakefile.gcc; make test -fmakefile.gcc
-#
-# To install libz.a, zconf.h and zlib.h in the mingw32 directories, type:
-#
-# make install -fmakefile.gcc
-#
-
-CC=gcc
-
-#CFLAGS=-MMD -O
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-MMD -g -DDEBUG
-CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
- -Wstrict-prototypes -Wmissing-prototypes
-
-# If cp.exe is available, replace "copy /Y" with "cp -fp" .
-CP=copy /Y
-# If gnu install.exe is available, replace $(CP) with ginstall.
-INSTALL=$(CP)
-# The default value of RM is "rm -f." If "rm.exe" is found, comment out:
-RM=del
-LDLIBS=-L. -lz
-LD=$(CC) -s -o
-LDSHARED=$(CC)
-
-INCL=zlib.h zconf.h
-LIBS=libz.a
-
-AR=ar rcs
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-all: example.exe minigzip.exe
-
-test: all
- ./example
- echo hello world | .\minigzip | .\minigzip -d
-
-%.o : %.c
- $(CC) $(CFLAGS) -c $< -o $@
-
-libz.a: $(OBJS)
- $(AR) $@ $(OBJS)
-
-%.exe : %.o $(LIBS)
- $(LD) $@ $< $(LDLIBS)
-
-# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
-
-.PHONY : uninstall clean
-
-install: $(INCL) $(LIBS)
- -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH)
- -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH)
- $(INSTALL) zlib.h $(INCLUDE_PATH)
- $(INSTALL) zconf.h $(INCLUDE_PATH)
- $(INSTALL) libz.a $(LIBRARY_PATH)
-
-uninstall:
- $(RM) $(INCLUDE_PATH)\zlib.h
- $(RM) $(INCLUDE_PATH)\zconf.h
- $(RM) $(LIBRARY_PATH)\libz.a
-
-clean:
- $(RM) *.d
- $(RM) *.o
- $(RM) *.exe
- $(RM) libz.a
- $(RM) foo.gz
-
-DEPS := $(wildcard *.d)
-ifneq ($(DEPS),)
-include $(DEPS)
-endif
+++ /dev/null
-# Makefile for zlib
-
-!include <ntwin32.mak>
-
-CC=cl
-LD=link
-CFLAGS=-O -nologo
-LDFLAGS=
-O=.obj
-
-# variables
-OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \
- trees$(O)
-OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \
- infutil$(O) inffast$(O)
-
-all: zlib.dll example.exe minigzip.exe
-
-adler32.obj: adler32.c zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-compress.obj: compress.c zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-crc32.obj: crc32.c zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-gzio.obj: gzio.c zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\
- infcodes.h infutil.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\
- infcodes.h inffast.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-uncompr.obj: uncompr.c zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-zutil.obj: zutil.c zutil.h zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-example.obj: example.c zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-minigzip.obj: minigzip.c zlib.h zconf.h
- $(CC) -c $(cvarsdll) $(CFLAGS) $*.c
-
-zlib.dll: $(OBJ1) $(OBJ2) zlib.dnt
- link $(dlllflags) -out:$@ -def:zlib.dnt $(OBJ1) $(OBJ2) $(guilibsdll)
-
-zlib.lib: zlib.dll
-
-example.exe: example.obj zlib.lib
- $(LD) $(LDFLAGS) example.obj zlib.lib
-
-minigzip.exe: minigzip.obj zlib.lib
- $(LD) $(LDFLAGS) minigzip.obj zlib.lib
-
-test: example.exe minigzip.exe
- example
- echo hello world | minigzip | minigzip -d
-
-clean:
- del *.obj
- del *.exe
- del *.dll
- del *.lib
+++ /dev/null
-LIBRARY zlib.dll
-EXETYPE WINDOWS
-CODE PRELOAD MOVEABLE DISCARDABLE
-DATA PRELOAD MOVEABLE MULTIPLE
-
-EXPORTS
- adler32 @1
- compress @2
- crc32 @3
- deflate @4
- deflateCopy @5
- deflateEnd @6
- deflateInit2_ @7
- deflateInit_ @8
- deflateParams @9
- deflateReset @10
- deflateSetDictionary @11
- gzclose @12
- gzdopen @13
- gzerror @14
- gzflush @15
- gzopen @16
- gzread @17
- gzwrite @18
- inflate @19
- inflateEnd @20
- inflateInit2_ @21
- inflateInit_ @22
- inflateReset @23
- inflateSetDictionary @24
- inflateSync @25
- uncompress @26
- zlibVersion @27
- gzprintf @28
- gzputc @29
- gzgetc @30
- gzseek @31
- gzrewind @32
- gztell @33
- gzeof @34
- gzsetparams @35
- zError @36
- inflateSyncPoint @37
- get_crc_table @38
- compress2 @39
- gzputs @40
- gzgets @41
+++ /dev/null
-# Makefile for zlib under OS/2 using GCC (PGCC)
-# For conditions of distribution and use, see copyright notice in zlib.h
-
-# To compile and test, type:
-# cp Makefile.os2 ..
-# cd ..
-# make -f Makefile.os2 test
-
-# This makefile will build a static library z.lib, a shared library
-# z.dll and a import library zdll.lib. You can use either z.lib or
-# zdll.lib by specifying either -lz or -lzdll on gcc's command line
-
-CC=gcc -Zomf -s
-
-CFLAGS=-O6 -Wall
-#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
-#CFLAGS=-g -DDEBUG
-#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
-# -Wstrict-prototypes -Wmissing-prototypes
-
-#################### BUG WARNING: #####################
-## infcodes.c hits a bug in pgcc-1.0, so you have to use either
-## -O# where # <= 4 or one of (-fno-ommit-frame-pointer or -fno-force-mem)
-## This bug is reportedly fixed in pgcc >1.0, but this was not tested
-CFLAGS+=-fno-force-mem
-
-LDFLAGS=-s -L. -lzdll -Zcrtdll
-LDSHARED=$(CC) -s -Zomf -Zdll -Zcrtdll
-
-VER=1.1.0
-ZLIB=z.lib
-SHAREDLIB=z.dll
-SHAREDLIBIMP=zdll.lib
-LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP)
-
-AR=emxomfar cr
-IMPLIB=emximp
-RANLIB=echo
-TAR=tar
-SHELL=bash
-
-prefix=/usr/local
-exec_prefix = $(prefix)
-
-OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
- zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
-
-TEST_OBJS = example.o minigzip.o
-
-DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \
- algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
- nt/Makefile.nt nt/zlib.dnt contrib/README.contrib contrib/*.txt \
- contrib/asm386/*.asm contrib/asm386/*.c \
- contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \
- contrib/iostream/*.h contrib/iostream2/*.h contrib/iostream2/*.cpp \
- contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32
-
-all: example.exe minigzip.exe
-
-test: all
- @LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
- echo hello world | ./minigzip | ./minigzip -d || \
- echo ' *** minigzip test FAILED ***' ; \
- if ./example; then \
- echo ' *** zlib test OK ***'; \
- else \
- echo ' *** zlib test FAILED ***'; \
- fi
-
-$(ZLIB): $(OBJS)
- $(AR) $@ $(OBJS)
- -@ ($(RANLIB) $@ || true) >/dev/null 2>&1
-
-$(SHAREDLIB): $(OBJS) os2/z.def
- $(LDSHARED) -o $@ $^
-
-$(SHAREDLIBIMP): os2/z.def
- $(IMPLIB) -o $@ $^
-
-example.exe: example.o $(LIBS)
- $(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
-
-minigzip.exe: minigzip.o $(LIBS)
- $(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
-
-clean:
- rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
-
-distclean: clean
-
-zip:
- mv Makefile Makefile~; cp -p Makefile.in Makefile
- rm -f test.c ztest*.c
- v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
- zip -ul9 zlib$$v $(DISTFILES)
- mv Makefile~ Makefile
-
-dist:
- mv Makefile Makefile~; cp -p Makefile.in Makefile
- rm -f test.c ztest*.c
- d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
- rm -f $$d.tar.gz; \
- if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
- files=""; \
- for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
- cd ..; \
- GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \
- if test ! -d $$d; then rm -f $$d; fi
- mv Makefile~ Makefile
-
-tags:
- etags *.[ch]
-
-depend:
- makedepend -- $(CFLAGS) -- *.[ch]
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-adler32.o: zlib.h zconf.h
-compress.o: zlib.h zconf.h
-crc32.o: zlib.h zconf.h
-deflate.o: deflate.h zutil.h zlib.h zconf.h
-example.o: zlib.h zconf.h
-gzio.o: zutil.h zlib.h zconf.h
-infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h
-infcodes.o: zutil.h zlib.h zconf.h
-infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h
-inffast.o: zutil.h zlib.h zconf.h inftrees.h
-inffast.o: infblock.h infcodes.h infutil.h inffast.h
-inflate.o: zutil.h zlib.h zconf.h infblock.h
-inftrees.o: zutil.h zlib.h zconf.h inftrees.h
-infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
-minigzip.o: zlib.h zconf.h
-trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
-uncompr.o: zlib.h zconf.h
-zutil.o: zutil.h zlib.h zconf.h
+++ /dev/null
-;
-; Slightly modified version of ../nt/zlib.dnt :-)
-;
-
-LIBRARY Z
-DESCRIPTION "Zlib compression library for OS/2"
-CODE PRELOAD MOVEABLE DISCARDABLE
-DATA PRELOAD MOVEABLE MULTIPLE
-
-EXPORTS
- adler32
- compress
- crc32
- deflate
- deflateCopy
- deflateEnd
- deflateInit2_
- deflateInit_
- deflateParams
- deflateReset
- deflateSetDictionary
- gzclose
- gzdopen
- gzerror
- gzflush
- gzopen
- gzread
- gzwrite
- inflate
- inflateEnd
- inflateInit2_
- inflateInit_
- inflateReset
- inflateSetDictionary
- inflateSync
- uncompress
- zlibVersion
- gzprintf
- gzputc
- gzgetc
- gzseek
- gzrewind
- gztell
- gzeof
- gzsetparams
- zError
- inflateSyncPoint
- get_crc_table
- compress2
- gzputs
- gzgets
+++ /dev/null
-/* trees.c -- output deflated data using Huffman coding
- * Copyright (C) 1995-1998 Jean-loup Gailly
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/*
- * ALGORITHM
- *
- * The "deflation" process uses several Huffman trees. The more
- * common source values are represented by shorter bit sequences.
- *
- * Each code tree is stored in a compressed form which is itself
- * a Huffman encoding of the lengths of all the code strings (in
- * ascending order by source values). The actual code strings are
- * reconstructed from the lengths in the inflate process, as described
- * in the deflate specification.
- *
- * REFERENCES
- *
- * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification".
- * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc
- *
- * Storer, James A.
- * Data Compression: Methods and Theory, pp. 49-50.
- * Computer Science Press, 1988. ISBN 0-7167-8156-5.
- *
- * Sedgewick, R.
- * Algorithms, p290.
- * Addison-Wesley, 1983. ISBN 0-201-06672-6.
- */
-
-/* @(#) $Id: trees.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-/* #define GEN_TREES_H */
-
-#include "deflate.h"
-
-#ifdef DEBUG
-# include <ctype.h>
-#endif
-
-/* ===========================================================================
- * Constants
- */
-
-#define MAX_BL_BITS 7
-/* Bit length codes must not exceed MAX_BL_BITS bits */
-
-#define END_BLOCK 256
-/* end of block literal code */
-
-#define REP_3_6 16
-/* repeat previous bit length 3-6 times (2 bits of repeat count) */
-
-#define REPZ_3_10 17
-/* repeat a zero length 3-10 times (3 bits of repeat count) */
-
-#define REPZ_11_138 18
-/* repeat a zero length 11-138 times (7 bits of repeat count) */
-
-local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
- = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
-
-local const int extra_dbits[D_CODES] /* extra bits for each distance code */
- = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
-
-local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */
- = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
-
-local const uch bl_order[BL_CODES]
- = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
-/* The lengths of the bit length codes are sent in order of decreasing
- * probability, to avoid transmitting the lengths for unused bit length codes.
- */
-
-#define Buf_size (8 * 2*sizeof(char))
-/* Number of bits used within bi_buf. (bi_buf might be implemented on
- * more than 16 bits on some systems.)
- */
-
-/* ===========================================================================
- * Local data. These are initialized only once.
- */
-
-#define DIST_CODE_LEN 512 /* see definition of array dist_code below */
-
-#if defined(GEN_TREES_H) || !defined(STDC)
-/* non ANSI compilers may not accept trees.h */
-
-local ct_data static_ltree[L_CODES+2];
-/* The static literal tree. Since the bit lengths are imposed, there is no
- * need for the L_CODES extra codes used during heap construction. However
- * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
- * below).
- */
-
-local ct_data static_dtree[D_CODES];
-/* The static distance tree. (Actually a trivial tree since all codes use
- * 5 bits.)
- */
-
-uch _dist_code[DIST_CODE_LEN];
-/* Distance codes. The first 256 values correspond to the distances
- * 3 .. 258, the last 256 values correspond to the top 8 bits of
- * the 15 bit distances.
- */
-
-uch _length_code[MAX_MATCH-MIN_MATCH+1];
-/* length code for each normalized match length (0 == MIN_MATCH) */
-
-local int base_length[LENGTH_CODES];
-/* First normalized length for each code (0 = MIN_MATCH) */
-
-local int base_dist[D_CODES];
-/* First normalized distance for each code (0 = distance of 1) */
-
-#else
-# include "trees.h"
-#endif /* GEN_TREES_H */
-
-struct static_tree_desc_s {
- const ct_data *static_tree; /* static tree or NULL */
- const intf *extra_bits; /* extra bits for each code or NULL */
- int extra_base; /* base index for extra_bits */
- int elems; /* max number of elements in the tree */
- int max_length; /* max bit length for the codes */
-};
-
-local static_tree_desc static_l_desc =
-{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
-
-local static_tree_desc static_d_desc =
-{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS};
-
-local static_tree_desc static_bl_desc =
-{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS};
-
-/* ===========================================================================
- * Local (static) routines in this file.
- */
-
-local void tr_static_init OF((void));
-local void init_block OF((deflate_state *s));
-local void pqdownheap OF((deflate_state *s, ct_data *tree, int k));
-local void gen_bitlen OF((deflate_state *s, tree_desc *desc));
-local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count));
-local void build_tree OF((deflate_state *s, tree_desc *desc));
-local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code));
-local void send_tree OF((deflate_state *s, ct_data *tree, int max_code));
-local int build_bl_tree OF((deflate_state *s));
-local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
- int blcodes));
-local void compress_block OF((deflate_state *s, ct_data *ltree,
- ct_data *dtree));
-local void set_data_type OF((deflate_state *s));
-local unsigned bi_reverse OF((unsigned value, int length));
-local void bi_windup OF((deflate_state *s));
-local void bi_flush OF((deflate_state *s));
-local void copy_block OF((deflate_state *s, charf *buf, unsigned len,
- int header));
-
-#ifdef GEN_TREES_H
-local void gen_trees_header OF((void));
-#endif
-
-#ifndef DEBUG
-# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
- /* Send a code of the given tree. c and tree must not have side effects */
-
-#else /* DEBUG */
-# define send_code(s, c, tree) \
- { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
- send_bits(s, tree[c].Code, tree[c].Len); }
-#endif
-
-/* ===========================================================================
- * Output a short LSB first on the stream.
- * IN assertion: there is enough room in pendingBuf.
- */
-#define put_short(s, w) { \
- put_byte(s, (uch)((w) & 0xff)); \
- put_byte(s, (uch)((ush)(w) >> 8)); \
-}
-
-/* ===========================================================================
- * Send a value on a given number of bits.
- * IN assertion: length <= 16 and value fits in length bits.
- */
-#ifdef DEBUG
-local void send_bits OF((deflate_state *s, int value, int length));
-
-local void send_bits(s, value, length)
- deflate_state *s;
- int value; /* value to send */
- int length; /* number of bits */
-{
- Tracevv((stderr," l %2d v %4x ", length, value));
- Assert(length > 0 && length <= 15, "invalid length");
- s->bits_sent += (ulg)length;
-
- /* If not enough room in bi_buf, use (valid) bits from bi_buf and
- * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
- * unused bits in value.
- */
- if (s->bi_valid > (int)Buf_size - length) {
- s->bi_buf |= (value << s->bi_valid);
- put_short(s, s->bi_buf);
- s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
- s->bi_valid += length - Buf_size;
- } else {
- s->bi_buf |= value << s->bi_valid;
- s->bi_valid += length;
- }
-}
-#else /* !DEBUG */
-
-#define send_bits(s, value, length) \
-{ int len = length;\
- if (s->bi_valid > (int)Buf_size - len) {\
- int val = value;\
- s->bi_buf |= (val << s->bi_valid);\
- put_short(s, s->bi_buf);\
- s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
- s->bi_valid += len - Buf_size;\
- } else {\
- s->bi_buf |= (value) << s->bi_valid;\
- s->bi_valid += len;\
- }\
-}
-#endif /* DEBUG */
-
-
-#define MAX(a,b) (a >= b ? a : b)
-/* the arguments must not have side effects */
-
-/* ===========================================================================
- * Initialize the various 'constant' tables.
- */
-local void tr_static_init()
-{
-#if defined(GEN_TREES_H) || !defined(STDC)
- static int static_init_done = 0;
- int n; /* iterates over tree elements */
- int bits; /* bit counter */
- int length; /* length value */
- int code; /* code value */
- int dist; /* distance index */
- ush bl_count[MAX_BITS+1];
- /* number of codes at each bit length for an optimal tree */
-
- if (static_init_done) return;
-
- /* For some embedded targets, global variables are not initialized: */
- static_l_desc.static_tree = static_ltree;
- static_l_desc.extra_bits = extra_lbits;
- static_d_desc.static_tree = static_dtree;
- static_d_desc.extra_bits = extra_dbits;
- static_bl_desc.extra_bits = extra_blbits;
-
- /* Initialize the mapping length (0..255) -> length code (0..28) */
- length = 0;
- for (code = 0; code < LENGTH_CODES-1; code++) {
- base_length[code] = length;
- for (n = 0; n < (1<<extra_lbits[code]); n++) {
- _length_code[length++] = (uch)code;
- }
- }
- Assert (length == 256, "tr_static_init: length != 256");
- /* Note that the length 255 (match length 258) can be represented
- * in two different ways: code 284 + 5 bits or code 285, so we
- * overwrite length_code[255] to use the best encoding:
- */
- _length_code[length-1] = (uch)code;
-
- /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
- dist = 0;
- for (code = 0 ; code < 16; code++) {
- base_dist[code] = dist;
- for (n = 0; n < (1<<extra_dbits[code]); n++) {
- _dist_code[dist++] = (uch)code;
- }
- }
- Assert (dist == 256, "tr_static_init: dist != 256");
- dist >>= 7; /* from now on, all distances are divided by 128 */
- for ( ; code < D_CODES; code++) {
- base_dist[code] = dist << 7;
- for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
- _dist_code[256 + dist++] = (uch)code;
- }
- }
- Assert (dist == 256, "tr_static_init: 256+dist != 512");
-
- /* Construct the codes of the static literal tree */
- for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
- n = 0;
- while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
- while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
- while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
- while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
- /* Codes 286 and 287 do not exist, but we must include them in the
- * tree construction to get a canonical Huffman tree (longest code
- * all ones)
- */
- gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count);
-
- /* The static distance tree is trivial: */
- for (n = 0; n < D_CODES; n++) {
- static_dtree[n].Len = 5;
- static_dtree[n].Code = bi_reverse((unsigned)n, 5);
- }
- static_init_done = 1;
-
-# ifdef GEN_TREES_H
- gen_trees_header();
-# endif
-#endif /* defined(GEN_TREES_H) || !defined(STDC) */
-}
-
-/* ===========================================================================
- * Genererate the file trees.h describing the static trees.
- */
-#ifdef GEN_TREES_H
-# ifndef DEBUG
-# include <stdio.h>
-# endif
-
-# define SEPARATOR(i, last, width) \
- ((i) == (last)? "\n};\n\n" : \
- ((i) % (width) == (width)-1 ? ",\n" : ", "))
-
-void gen_trees_header()
-{
- FILE *header = fopen("trees.h", "w");
- int i;
-
- Assert (header != NULL, "Can't open trees.h");
- fprintf(header,
- "/* header created automatically with -DGEN_TREES_H */\n\n");
-
- fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
- for (i = 0; i < L_CODES+2; i++) {
- fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
- static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
- }
-
- fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
- for (i = 0; i < D_CODES; i++) {
- fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
- static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
- }
-
- fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n");
- for (i = 0; i < DIST_CODE_LEN; i++) {
- fprintf(header, "%2u%s", _dist_code[i],
- SEPARATOR(i, DIST_CODE_LEN-1, 20));
- }
-
- fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
- for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
- fprintf(header, "%2u%s", _length_code[i],
- SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
- }
-
- fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
- for (i = 0; i < LENGTH_CODES; i++) {
- fprintf(header, "%1u%s", base_length[i],
- SEPARATOR(i, LENGTH_CODES-1, 20));
- }
-
- fprintf(header, "local const int base_dist[D_CODES] = {\n");
- for (i = 0; i < D_CODES; i++) {
- fprintf(header, "%5u%s", base_dist[i],
- SEPARATOR(i, D_CODES-1, 10));
- }
-
- fclose(header);
-}
-#endif /* GEN_TREES_H */
-
-/* ===========================================================================
- * Initialize the tree data structures for a new zlib stream.
- */
-void _tr_init(s)
- deflate_state *s;
-{
- tr_static_init();
-
- s->l_desc.dyn_tree = s->dyn_ltree;
- s->l_desc.stat_desc = &static_l_desc;
-
- s->d_desc.dyn_tree = s->dyn_dtree;
- s->d_desc.stat_desc = &static_d_desc;
-
- s->bl_desc.dyn_tree = s->bl_tree;
- s->bl_desc.stat_desc = &static_bl_desc;
-
- s->bi_buf = 0;
- s->bi_valid = 0;
- s->last_eob_len = 8; /* enough lookahead for inflate */
-#ifdef DEBUG
- s->compressed_len = 0L;
- s->bits_sent = 0L;
-#endif
-
- /* Initialize the first block of the first file: */
- init_block(s);
-}
-
-/* ===========================================================================
- * Initialize a new block.
- */
-local void init_block(s)
- deflate_state *s;
-{
- int n; /* iterates over tree elements */
-
- /* Initialize the trees. */
- for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0;
- for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0;
- for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0;
-
- s->dyn_ltree[END_BLOCK].Freq = 1;
- s->opt_len = s->static_len = 0L;
- s->last_lit = s->matches = 0;
-}
-
-#define SMALLEST 1
-/* Index within the heap array of least frequent node in the Huffman tree */
-
-
-/* ===========================================================================
- * Remove the smallest element from the heap and recreate the heap with
- * one less element. Updates heap and heap_len.
- */
-#define pqremove(s, tree, top) \
-{\
- top = s->heap[SMALLEST]; \
- s->heap[SMALLEST] = s->heap[s->heap_len--]; \
- pqdownheap(s, tree, SMALLEST); \
-}
-
-/* ===========================================================================
- * Compares to subtrees, using the tree depth as tie breaker when
- * the subtrees have equal frequency. This minimizes the worst case length.
- */
-#define smaller(tree, n, m, depth) \
- (tree[n].Freq < tree[m].Freq || \
- (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
-
-/* ===========================================================================
- * Restore the heap property by moving down the tree starting at node k,
- * exchanging a node with the smallest of its two sons if necessary, stopping
- * when the heap property is re-established (each father smaller than its
- * two sons).
- */
-local void pqdownheap(s, tree, k)
- deflate_state *s;
- ct_data *tree; /* the tree to restore */
- int k; /* node to move down */
-{
- int v = s->heap[k];
- int j = k << 1; /* left son of k */
- while (j <= s->heap_len) {
- /* Set j to the smallest of the two sons: */
- if (j < s->heap_len &&
- smaller(tree, s->heap[j+1], s->heap[j], s->depth)) {
- j++;
- }
- /* Exit if v is smaller than both sons */
- if (smaller(tree, v, s->heap[j], s->depth)) break;
-
- /* Exchange v with the smallest son */
- s->heap[k] = s->heap[j]; k = j;
-
- /* And continue down the tree, setting j to the left son of k */
- j <<= 1;
- }
- s->heap[k] = v;
-}
-
-/* ===========================================================================
- * Compute the optimal bit lengths for a tree and update the total bit length
- * for the current block.
- * IN assertion: the fields freq and dad are set, heap[heap_max] and
- * above are the tree nodes sorted by increasing frequency.
- * OUT assertions: the field len is set to the optimal bit length, the
- * array bl_count contains the frequencies for each bit length.
- * The length opt_len is updated; static_len is also updated if stree is
- * not null.
- */
-local void gen_bitlen(s, desc)
- deflate_state *s;
- tree_desc *desc; /* the tree descriptor */
-{
- ct_data *tree = desc->dyn_tree;
- int max_code = desc->max_code;
- const ct_data *stree = desc->stat_desc->static_tree;
- const intf *extra = desc->stat_desc->extra_bits;
- int base = desc->stat_desc->extra_base;
- int max_length = desc->stat_desc->max_length;
- int h; /* heap index */
- int n, m; /* iterate over the tree elements */
- int bits; /* bit length */
- int xbits; /* extra bits */
- ush f; /* frequency */
- int overflow = 0; /* number of elements with bit length too large */
-
- for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0;
-
- /* In a first pass, compute the optimal bit lengths (which may
- * overflow in the case of the bit length tree).
- */
- tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */
-
- for (h = s->heap_max+1; h < HEAP_SIZE; h++) {
- n = s->heap[h];
- bits = tree[tree[n].Dad].Len + 1;
- if (bits > max_length) bits = max_length, overflow++;
- tree[n].Len = (ush)bits;
- /* We overwrite tree[n].Dad which is no longer needed */
-
- if (n > max_code) continue; /* not a leaf node */
-
- s->bl_count[bits]++;
- xbits = 0;
- if (n >= base) xbits = extra[n-base];
- f = tree[n].Freq;
- s->opt_len += (ulg)f * (bits + xbits);
- if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits);
- }
- if (overflow == 0) return;
-
- Trace((stderr,"\nbit length overflow\n"));
- /* This happens for example on obj2 and pic of the Calgary corpus */
-
- /* Find the first bit length which could increase: */
- do {
- bits = max_length-1;
- while (s->bl_count[bits] == 0) bits--;
- s->bl_count[bits]--; /* move one leaf down the tree */
- s->bl_count[bits+1] += 2; /* move one overflow item as its brother */
- s->bl_count[max_length]--;
- /* The brother of the overflow item also moves one step up,
- * but this does not affect bl_count[max_length]
- */
- overflow -= 2;
- } while (overflow > 0);
-
- /* Now recompute all bit lengths, scanning in increasing frequency.
- * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
- * lengths instead of fixing only the wrong ones. This idea is taken
- * from 'ar' written by Haruhiko Okumura.)
- */
- for (bits = max_length; bits != 0; bits--) {
- n = s->bl_count[bits];
- while (n != 0) {
- m = s->heap[--h];
- if (m > max_code) continue;
- if (tree[m].Len != (unsigned) bits) {
- Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
- s->opt_len += ((long)bits - (long)tree[m].Len)
- *(long)tree[m].Freq;
- tree[m].Len = (ush)bits;
- }
- n--;
- }
- }
-}
-
-/* ===========================================================================
- * Generate the codes for a given tree and bit counts (which need not be
- * optimal).
- * IN assertion: the array bl_count contains the bit length statistics for
- * the given tree and the field len is set for all tree elements.
- * OUT assertion: the field code is set for all tree elements of non
- * zero code length.
- */
-local void gen_codes (tree, max_code, bl_count)
- ct_data *tree; /* the tree to decorate */
- int max_code; /* largest code with non zero frequency */
- ushf *bl_count; /* number of codes at each bit length */
-{
- ush next_code[MAX_BITS+1]; /* next code value for each bit length */
- ush code = 0; /* running code value */
- int bits; /* bit index */
- int n; /* code index */
-
- /* The distribution counts are first used to generate the code values
- * without bit reversal.
- */
- for (bits = 1; bits <= MAX_BITS; bits++) {
- next_code[bits] = code = (code + bl_count[bits-1]) << 1;
- }
- /* Check that the bit counts in bl_count are consistent. The last code
- * must be all ones.
- */
- Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
- "inconsistent bit counts");
- Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
-
- for (n = 0; n <= max_code; n++) {
- int len = tree[n].Len;
- if (len == 0) continue;
- /* Now reverse the bits */
- tree[n].Code = bi_reverse(next_code[len]++, len);
-
- Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
- n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
- }
-}
-
-/* ===========================================================================
- * Construct one Huffman tree and assigns the code bit strings and lengths.
- * Update the total bit length for the current block.
- * IN assertion: the field freq is set for all tree elements.
- * OUT assertions: the fields len and code are set to the optimal bit length
- * and corresponding code. The length opt_len is updated; static_len is
- * also updated if stree is not null. The field max_code is set.
- */
-local void build_tree(s, desc)
- deflate_state *s;
- tree_desc *desc; /* the tree descriptor */
-{
- ct_data *tree = desc->dyn_tree;
- const ct_data *stree = desc->stat_desc->static_tree;
- int elems = desc->stat_desc->elems;
- int n, m; /* iterate over heap elements */
- int max_code = -1; /* largest code with non zero frequency */
- int node; /* new node being created */
-
- /* Construct the initial heap, with least frequent element in
- * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
- * heap[0] is not used.
- */
- s->heap_len = 0, s->heap_max = HEAP_SIZE;
-
- for (n = 0; n < elems; n++) {
- if (tree[n].Freq != 0) {
- s->heap[++(s->heap_len)] = max_code = n;
- s->depth[n] = 0;
- } else {
- tree[n].Len = 0;
- }
- }
-
- /* The pkzip format requires that at least one distance code exists,
- * and that at least one bit should be sent even if there is only one
- * possible code. So to avoid special checks later on we force at least
- * two codes of non zero frequency.
- */
- while (s->heap_len < 2) {
- node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0);
- tree[node].Freq = 1;
- s->depth[node] = 0;
- s->opt_len--; if (stree) s->static_len -= stree[node].Len;
- /* node is 0 or 1 so it does not have extra bits */
- }
- desc->max_code = max_code;
-
- /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
- * establish sub-heaps of increasing lengths:
- */
- for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n);
-
- /* Construct the Huffman tree by repeatedly combining the least two
- * frequent nodes.
- */
- node = elems; /* next internal node of the tree */
- do {
- pqremove(s, tree, n); /* n = node of least frequency */
- m = s->heap[SMALLEST]; /* m = node of next least frequency */
-
- s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */
- s->heap[--(s->heap_max)] = m;
-
- /* Create a new node father of n and m */
- tree[node].Freq = tree[n].Freq + tree[m].Freq;
- s->depth[node] = (uch) (MAX(s->depth[n], s->depth[m]) + 1);
- tree[n].Dad = tree[m].Dad = (ush)node;
-#ifdef DUMP_BL_TREE
- if (tree == s->bl_tree) {
- fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
- node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
- }
-#endif
- /* and insert the new node in the heap */
- s->heap[SMALLEST] = node++;
- pqdownheap(s, tree, SMALLEST);
-
- } while (s->heap_len >= 2);
-
- s->heap[--(s->heap_max)] = s->heap[SMALLEST];
-
- /* At this point, the fields freq and dad are set. We can now
- * generate the bit lengths.
- */
- gen_bitlen(s, (tree_desc *)desc);
-
- /* The field len is now set, we can generate the bit codes */
- gen_codes ((ct_data *)tree, max_code, s->bl_count);
-}
-
-/* ===========================================================================
- * Scan a literal or distance tree to determine the frequencies of the codes
- * in the bit length tree.
- */
-local void scan_tree (s, tree, max_code)
- deflate_state *s;
- ct_data *tree; /* the tree to be scanned */
- int max_code; /* and its largest code of non zero frequency */
-{
- int n; /* iterates over all tree elements */
- int prevlen = -1; /* last emitted length */
- int curlen; /* length of current code */
- int nextlen = tree[0].Len; /* length of next code */
- int count = 0; /* repeat count of the current code */
- int max_count = 7; /* max repeat count */
- int min_count = 4; /* min repeat count */
-
- if (nextlen == 0) max_count = 138, min_count = 3;
- tree[max_code+1].Len = (ush)0xffff; /* guard */
-
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen; nextlen = tree[n+1].Len;
- if (++count < max_count && curlen == nextlen) {
- continue;
- } else if (count < min_count) {
- s->bl_tree[curlen].Freq += count;
- } else if (curlen != 0) {
- if (curlen != prevlen) s->bl_tree[curlen].Freq++;
- s->bl_tree[REP_3_6].Freq++;
- } else if (count <= 10) {
- s->bl_tree[REPZ_3_10].Freq++;
- } else {
- s->bl_tree[REPZ_11_138].Freq++;
- }
- count = 0; prevlen = curlen;
- if (nextlen == 0) {
- max_count = 138, min_count = 3;
- } else if (curlen == nextlen) {
- max_count = 6, min_count = 3;
- } else {
- max_count = 7, min_count = 4;
- }
- }
-}
-
-/* ===========================================================================
- * Send a literal or distance tree in compressed form, using the codes in
- * bl_tree.
- */
-local void send_tree (s, tree, max_code)
- deflate_state *s;
- ct_data *tree; /* the tree to be scanned */
- int max_code; /* and its largest code of non zero frequency */
-{
- int n; /* iterates over all tree elements */
- int prevlen = -1; /* last emitted length */
- int curlen; /* length of current code */
- int nextlen = tree[0].Len; /* length of next code */
- int count = 0; /* repeat count of the current code */
- int max_count = 7; /* max repeat count */
- int min_count = 4; /* min repeat count */
-
- /* tree[max_code+1].Len = -1; */ /* guard already set */
- if (nextlen == 0) max_count = 138, min_count = 3;
-
- for (n = 0; n <= max_code; n++) {
- curlen = nextlen; nextlen = tree[n+1].Len;
- if (++count < max_count && curlen == nextlen) {
- continue;
- } else if (count < min_count) {
- do { send_code(s, curlen, s->bl_tree); } while (--count != 0);
-
- } else if (curlen != 0) {
- if (curlen != prevlen) {
- send_code(s, curlen, s->bl_tree); count--;
- }
- Assert(count >= 3 && count <= 6, " 3_6?");
- send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2);
-
- } else if (count <= 10) {
- send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3);
-
- } else {
- send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7);
- }
- count = 0; prevlen = curlen;
- if (nextlen == 0) {
- max_count = 138, min_count = 3;
- } else if (curlen == nextlen) {
- max_count = 6, min_count = 3;
- } else {
- max_count = 7, min_count = 4;
- }
- }
-}
-
-/* ===========================================================================
- * Construct the Huffman tree for the bit lengths and return the index in
- * bl_order of the last bit length code to send.
- */
-local int build_bl_tree(s)
- deflate_state *s;
-{
- int max_blindex; /* index of last bit length code of non zero freq */
-
- /* Determine the bit length frequencies for literal and distance trees */
- scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code);
- scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code);
-
- /* Build the bit length tree: */
- build_tree(s, (tree_desc *)(&(s->bl_desc)));
- /* opt_len now includes the length of the tree representations, except
- * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
- */
-
- /* Determine the number of bit length codes to send. The pkzip format
- * requires that at least 4 bit length codes be sent. (appnote.txt says
- * 3 but the actual value used is 4.)
- */
- for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
- if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
- }
- /* Update opt_len to include the bit length tree and counts */
- s->opt_len += 3*(max_blindex+1) + 5+5+4;
- Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
- s->opt_len, s->static_len));
-
- return max_blindex;
-}
-
-/* ===========================================================================
- * Send the header for a block using dynamic Huffman trees: the counts, the
- * lengths of the bit length codes, the literal tree and the distance tree.
- * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
- */
-local void send_all_trees(s, lcodes, dcodes, blcodes)
- deflate_state *s;
- int lcodes, dcodes, blcodes; /* number of codes for each tree */
-{
- int rank; /* index in bl_order */
-
- Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
- Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
- "too many codes");
- Tracev((stderr, "\nbl counts: "));
- send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */
- send_bits(s, dcodes-1, 5);
- send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */
- for (rank = 0; rank < blcodes; rank++) {
- Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
- send_bits(s, s->bl_tree[bl_order[rank]].Len, 3);
- }
- Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
-
- send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */
- Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
-
- send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */
- Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
-}
-
-/* ===========================================================================
- * Send a stored block
- */
-void _tr_stored_block(s, buf, stored_len, eof)
- deflate_state *s;
- charf *buf; /* input block */
- ulg stored_len; /* length of input block */
- int eof; /* true if this is the last block for a file */
-{
- send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */
-#ifdef DEBUG
- s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
- s->compressed_len += (stored_len + 4) << 3;
-#endif
- copy_block(s, buf, (unsigned)stored_len, 1); /* with header */
-}
-
-/* ===========================================================================
- * Send one empty static block to give enough lookahead for inflate.
- * This takes 10 bits, of which 7 may remain in the bit buffer.
- * The current inflate code requires 9 bits of lookahead. If the
- * last two codes for the previous block (real code plus EOB) were coded
- * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode
- * the last real code. In this case we send two empty static blocks instead
- * of one. (There are no problems if the previous block is stored or fixed.)
- * To simplify the code, we assume the worst case of last real code encoded
- * on one bit only.
- */
-void _tr_align(s)
- deflate_state *s;
-{
- send_bits(s, STATIC_TREES<<1, 3);
- send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
- s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
-#endif
- bi_flush(s);
- /* Of the 10 bits for the empty block, we have already sent
- * (10 - bi_valid) bits. The lookahead for the last real code (before
- * the EOB of the previous block) was thus at least one plus the length
- * of the EOB plus what we have just sent of the empty static block.
- */
- if (1 + s->last_eob_len + 10 - s->bi_valid < 9) {
- send_bits(s, STATIC_TREES<<1, 3);
- send_code(s, END_BLOCK, static_ltree);
-#ifdef DEBUG
- s->compressed_len += 10L;
-#endif
- bi_flush(s);
- }
- s->last_eob_len = 7;
-}
-
-/* ===========================================================================
- * Determine the best encoding for the current block: dynamic trees, static
- * trees or store, and output the encoded block to the zip file.
- */
-void _tr_flush_block(s, buf, stored_len, eof)
- deflate_state *s;
- charf *buf; /* input block, or NULL if too old */
- ulg stored_len; /* length of input block */
- int eof; /* true if this is the last block for a file */
-{
- ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
- int max_blindex = 0; /* index of last bit length code of non zero freq */
-
- /* Build the Huffman trees unless a stored block is forced */
- if (s->level > 0) {
-
- /* Check if the file is ascii or binary */
- if (s->data_type == Z_UNKNOWN) set_data_type(s);
-
- /* Construct the literal and distance trees */
- build_tree(s, (tree_desc *)(&(s->l_desc)));
- Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
- s->static_len));
-
- build_tree(s, (tree_desc *)(&(s->d_desc)));
- Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
- s->static_len));
- /* At this point, opt_len and static_len are the total bit lengths of
- * the compressed block data, excluding the tree representations.
- */
-
- /* Build the bit length tree for the above two trees, and get the index
- * in bl_order of the last bit length code to send.
- */
- max_blindex = build_bl_tree(s);
-
- /* Determine the best encoding. Compute first the block length in bytes*/
- opt_lenb = (s->opt_len+3+7)>>3;
- static_lenb = (s->static_len+3+7)>>3;
-
- Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
- opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
- s->last_lit));
-
- if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
-
- } else {
- Assert(buf != (char*)0, "lost buf");
- opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
- }
-
-#ifdef FORCE_STORED
- if (buf != (char*)0) { /* force stored block */
-#else
- if (stored_len+4 <= opt_lenb && buf != (char*)0) {
- /* 4: two words for the lengths */
-#endif
- /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
- * Otherwise we can't have processed more than WSIZE input bytes since
- * the last block flush, because compression would have been
- * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
- * transform a block into a stored block.
- */
- _tr_stored_block(s, buf, stored_len, eof);
-
-#ifdef FORCE_STATIC
- } else if (static_lenb >= 0) { /* force static trees */
-#else
- } else if (static_lenb == opt_lenb) {
-#endif
- send_bits(s, (STATIC_TREES<<1)+eof, 3);
- compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree);
-#ifdef DEBUG
- s->compressed_len += 3 + s->static_len;
-#endif
- } else {
- send_bits(s, (DYN_TREES<<1)+eof, 3);
- send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
- max_blindex+1);
- compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree);
-#ifdef DEBUG
- s->compressed_len += 3 + s->opt_len;
-#endif
- }
- Assert (s->compressed_len == s->bits_sent, "bad compressed size");
- /* The above check is made mod 2^32, for files larger than 512 MB
- * and uLong implemented on 32 bits.
- */
- init_block(s);
-
- if (eof) {
- bi_windup(s);
-#ifdef DEBUG
- s->compressed_len += 7; /* align on byte boundary */
-#endif
- }
- Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
- s->compressed_len-7*eof));
-}
-
-/* ===========================================================================
- * Save the match info and tally the frequency counts. Return true if
- * the current block must be flushed.
- */
-int _tr_tally (s, dist, lc)
- deflate_state *s;
- unsigned dist; /* distance of matched string */
- unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
-{
- s->d_buf[s->last_lit] = (ush)dist;
- s->l_buf[s->last_lit++] = (uch)lc;
- if (dist == 0) {
- /* lc is the unmatched char */
- s->dyn_ltree[lc].Freq++;
- } else {
- s->matches++;
- /* Here, lc is the match length - MIN_MATCH */
- dist--; /* dist = match distance - 1 */
- Assert((ush)dist < (ush)MAX_DIST(s) &&
- (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
- (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match");
-
- s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
- s->dyn_dtree[d_code(dist)].Freq++;
- }
-
-#ifdef TRUNCATE_BLOCK
- /* Try to guess if it is profitable to stop the current block here */
- if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
- /* Compute an upper bound for the compressed length */
- ulg out_length = (ulg)s->last_lit*8L;
- ulg in_length = (ulg)((long)s->strstart - s->block_start);
- int dcode;
- for (dcode = 0; dcode < D_CODES; dcode++) {
- out_length += (ulg)s->dyn_dtree[dcode].Freq *
- (5L+extra_dbits[dcode]);
- }
- out_length >>= 3;
- Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
- s->last_lit, in_length, out_length,
- 100L - out_length*100L/in_length));
- if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
- }
-#endif
- return (s->last_lit == s->lit_bufsize-1);
- /* We avoid equality with lit_bufsize because of wraparound at 64K
- * on 16 bit machines and because stored blocks are restricted to
- * 64K-1 bytes.
- */
-}
-
-/* ===========================================================================
- * Send the block data compressed using the given Huffman trees
- */
-local void compress_block(s, ltree, dtree)
- deflate_state *s;
- ct_data *ltree; /* literal tree */
- ct_data *dtree; /* distance tree */
-{
- unsigned dist; /* distance of matched string */
- int lc; /* match length or unmatched char (if dist == 0) */
- unsigned lx = 0; /* running index in l_buf */
- unsigned code; /* the code to send */
- int extra; /* number of extra bits to send */
-
- if (s->last_lit != 0) do {
- dist = s->d_buf[lx];
- lc = s->l_buf[lx++];
- if (dist == 0) {
- send_code(s, lc, ltree); /* send a literal byte */
- Tracecv(isgraph(lc), (stderr," '%c' ", lc));
- } else {
- /* Here, lc is the match length - MIN_MATCH */
- code = _length_code[lc];
- send_code(s, code+LITERALS+1, ltree); /* send the length code */
- extra = extra_lbits[code];
- if (extra != 0) {
- lc -= base_length[code];
- send_bits(s, lc, extra); /* send the extra length bits */
- }
- dist--; /* dist is now the match distance - 1 */
- code = d_code(dist);
- Assert (code < D_CODES, "bad d_code");
-
- send_code(s, code, dtree); /* send the distance code */
- extra = extra_dbits[code];
- if (extra != 0) {
- dist -= base_dist[code];
- send_bits(s, dist, extra); /* send the extra distance bits */
- }
- } /* literal or match pair ? */
-
- /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
- Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow");
-
- } while (lx < s->last_lit);
-
- send_code(s, END_BLOCK, ltree);
- s->last_eob_len = ltree[END_BLOCK].Len;
-}
-
-/* ===========================================================================
- * Set the data type to ASCII or BINARY, using a crude approximation:
- * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise.
- * IN assertion: the fields freq of dyn_ltree are set and the total of all
- * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
- */
-local void set_data_type(s)
- deflate_state *s;
-{
- int n = 0;
- unsigned ascii_freq = 0;
- unsigned bin_freq = 0;
- while (n < 7) bin_freq += s->dyn_ltree[n++].Freq;
- while (n < 128) ascii_freq += s->dyn_ltree[n++].Freq;
- while (n < LITERALS) bin_freq += s->dyn_ltree[n++].Freq;
- s->data_type = (Byte)(bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII);
-}
-
-/* ===========================================================================
- * Reverse the first len bits of a code, using straightforward code (a faster
- * method would use a table)
- * IN assertion: 1 <= len <= 15
- */
-local unsigned bi_reverse(code, len)
- unsigned code; /* the value to invert */
- int len; /* its bit length */
-{
- register unsigned res = 0;
- do {
- res |= code & 1;
- code >>= 1, res <<= 1;
- } while (--len > 0);
- return res >> 1;
-}
-
-/* ===========================================================================
- * Flush the bit buffer, keeping at most 7 bits in it.
- */
-local void bi_flush(s)
- deflate_state *s;
-{
- if (s->bi_valid == 16) {
- put_short(s, s->bi_buf);
- s->bi_buf = 0;
- s->bi_valid = 0;
- } else if (s->bi_valid >= 8) {
- put_byte(s, (Byte)s->bi_buf);
- s->bi_buf >>= 8;
- s->bi_valid -= 8;
- }
-}
-
-/* ===========================================================================
- * Flush the bit buffer and align the output on a byte boundary
- */
-local void bi_windup(s)
- deflate_state *s;
-{
- if (s->bi_valid > 8) {
- put_short(s, s->bi_buf);
- } else if (s->bi_valid > 0) {
- put_byte(s, (Byte)s->bi_buf);
- }
- s->bi_buf = 0;
- s->bi_valid = 0;
-#ifdef DEBUG
- s->bits_sent = (s->bits_sent+7) & ~7;
-#endif
-}
-
-/* ===========================================================================
- * Copy a stored block, storing first the length and its
- * one's complement if requested.
- */
-local void copy_block(s, buf, len, header)
- deflate_state *s;
- charf *buf; /* the input data */
- unsigned len; /* its length */
- int header; /* true if block header must be written */
-{
- bi_windup(s); /* align on byte boundary */
- s->last_eob_len = 8; /* enough lookahead for inflate */
-
- if (header) {
- put_short(s, (ush)len);
- put_short(s, (ush)~len);
-#ifdef DEBUG
- s->bits_sent += 2*16;
-#endif
- }
-#ifdef DEBUG
- s->bits_sent += (ulg)len<<3;
-#endif
- while (len--) {
- put_byte(s, *buf++);
- }
-}
+++ /dev/null
-/* header created automatically with -DGEN_TREES_H */
-
-local const ct_data static_ltree[L_CODES+2] = {
-{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}},
-{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}},
-{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}},
-{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}},
-{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}},
-{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}},
-{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}},
-{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}},
-{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}},
-{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}},
-{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}},
-{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}},
-{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}},
-{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}},
-{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}},
-{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}},
-{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}},
-{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}},
-{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}},
-{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}},
-{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}},
-{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}},
-{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}},
-{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}},
-{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}},
-{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}},
-{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}},
-{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}},
-{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}},
-{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}},
-{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}},
-{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}},
-{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}},
-{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}},
-{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}},
-{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}},
-{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}},
-{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}},
-{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}},
-{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}},
-{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}},
-{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}},
-{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}},
-{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}},
-{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}},
-{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}},
-{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}},
-{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}},
-{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}},
-{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}},
-{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}},
-{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}},
-{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}},
-{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}},
-{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}},
-{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}},
-{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}},
-{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}}
-};
-
-local const ct_data static_dtree[D_CODES] = {
-{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}},
-{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}},
-{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}},
-{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}},
-{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}},
-{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
-};
-
-const uch _dist_code[DIST_CODE_LEN] = {
- 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8,
- 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
-10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
-11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
-12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
-13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
-13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
-14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17,
-18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
-23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
-28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
-29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
-};
-
-const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12,
-13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
-17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
-19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
-21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
-22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
-23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
-25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
-25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
-26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
-27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28
-};
-
-local const int base_length[LENGTH_CODES] = {
-0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56,
-64, 80, 96, 112, 128, 160, 192, 224, 0
-};
-
-local const int base_dist[D_CODES] = {
- 0, 1, 2, 3, 4, 6, 8, 12, 16, 24,
- 32, 48, 64, 96, 128, 192, 256, 384, 512, 768,
- 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576
-};
-
+++ /dev/null
-/* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: uncompr.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "zlib.h"
-
-/* ===========================================================================
- Decompresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be large enough to hold the
- entire uncompressed data. (The size of the uncompressed data must have
- been saved previously by the compressor and transmitted to the decompressor
- by some mechanism outside the scope of this compression library.)
- Upon exit, destLen is the actual size of the compressed buffer.
- This function can be used to decompress a whole file at once if the
- input file is mmap'ed.
-
- uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer, or Z_DATA_ERROR if the input data was corrupted.
-*/
-int ZEXPORT uncompress (dest, destLen, source, sourceLen)
- Bytef *dest;
- uLongf *destLen;
- const Bytef *source;
- uLong sourceLen;
-{
- z_stream stream;
- int err;
-
- stream.next_in = (Bytef*)source;
- stream.avail_in = (uInt)sourceLen;
- /* Check for source > 64K on 16-bit machine: */
- if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
-
- stream.next_out = dest;
- stream.avail_out = (uInt)*destLen;
- if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
-
- stream.zalloc = (alloc_func)0;
- stream.zfree = (free_func)0;
-
- err = inflateInit(&stream);
- if (err != Z_OK) return err;
-
- err = inflate(&stream, Z_FINISH);
- if (err != Z_STREAM_END) {
- inflateEnd(&stream);
- return err == Z_OK ? Z_BUF_ERROR : err;
- }
- *destLen = stream.total_out;
-
- err = inflateEnd(&stream);
- return err;
-}
+++ /dev/null
-/* zconf.h -- configuration of the zlib compression library
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: zconf.h,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#ifndef _ZCONF_H
-#define _ZCONF_H
-
-/*
- * If you *really* need a unique prefix for all types and library functions,
- * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
- */
-#ifdef Z_PREFIX
-# define deflateInit_ z_deflateInit_
-# define deflate z_deflate
-# define deflateEnd z_deflateEnd
-# define inflateInit_ z_inflateInit_
-# define inflate z_inflate
-# define inflateEnd z_inflateEnd
-# define deflateInit2_ z_deflateInit2_
-# define deflateSetDictionary z_deflateSetDictionary
-# define deflateCopy z_deflateCopy
-# define deflateReset z_deflateReset
-# define deflateParams z_deflateParams
-# define inflateInit2_ z_inflateInit2_
-# define inflateSetDictionary z_inflateSetDictionary
-# define inflateSync z_inflateSync
-# define inflateSyncPoint z_inflateSyncPoint
-# define inflateReset z_inflateReset
-# define compress z_compress
-# define compress2 z_compress2
-# define uncompress z_uncompress
-# define adler32 z_adler32
-# define crc32 z_crc32
-# define get_crc_table z_get_crc_table
-
-# define Byte z_Byte
-# define uInt z_uInt
-# define uLong z_uLong
-# define Bytef z_Bytef
-# define charf z_charf
-# define intf z_intf
-# define uIntf z_uIntf
-# define uLongf z_uLongf
-# define voidpf z_voidpf
-# define voidp z_voidp
-#endif
-
-#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
-# define WIN32
-#endif
-#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
-# ifndef __32BIT__
-# define __32BIT__
-# endif
-#endif
-#if defined(__MSDOS__) && !defined(MSDOS)
-# define MSDOS
-#endif
-
-/*
- * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
- * than 64k bytes at a time (needed on systems with 16-bit int).
- */
-#if defined(MSDOS) && !defined(__32BIT__)
-# define MAXSEG_64K
-#endif
-#ifdef MSDOS
-# define UNALIGNED_OK
-#endif
-
-#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC)
-# define STDC
-#endif
-#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
-# ifndef STDC
-# define STDC
-# endif
-#endif
-
-#ifndef STDC
-# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
-# define const
-# endif
-#endif
-
-/* Some Mac compilers merge all .h files incorrectly: */
-#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
-# define NO_DUMMY_DECL
-#endif
-
-/* Old Borland C incorrectly complains about missing returns: */
-#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
-# define NEED_DUMMY_RETURN
-#endif
-
-
-/* Maximum value for memLevel in deflateInit2 */
-#ifndef MAX_MEM_LEVEL
-# ifdef MAXSEG_64K
-# define MAX_MEM_LEVEL 8
-# else
-# define MAX_MEM_LEVEL 9
-# endif
-#endif
-
-/* Maximum value for windowBits in deflateInit2 and inflateInit2.
- * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
- * created by gzip. (Files created by minigzip can still be extracted by
- * gzip.)
- */
-#ifndef MAX_WBITS
-# define MAX_WBITS 15 /* 32K LZ77 window */
-#endif
-
-/* The memory requirements for deflate are (in bytes):
- (1 << (windowBits+2)) + (1 << (memLevel+9))
- that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
- plus a few kilobytes for small objects. For example, if you want to reduce
- the default memory requirements from 256K to 128K, compile with
- make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
- Of course this will generally degrade compression (there's no free lunch).
-
- The memory requirements for inflate are (in bytes) 1 << windowBits
- that is, 32K for windowBits=15 (default value) plus a few kilobytes
- for small objects.
-*/
-
- /* Type declarations */
-
-#ifndef OF /* function prototypes */
-# ifdef STDC
-# define OF(args) args
-# else
-# define OF(args) ()
-# endif
-#endif
-
-/* The following definitions for FAR are needed only for MSDOS mixed
- * model programming (small or medium model with some far allocations).
- * This was tested only with MSC; for other MSDOS compilers you may have
- * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
- * just define FAR to be empty.
- */
-#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
- /* MSC small or medium model */
-# define SMALL_MEDIUM
-# ifdef _MSC_VER
-# define FAR _far
-# else
-# define FAR far
-# endif
-#endif
-#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
-# ifndef __32BIT__
-# define SMALL_MEDIUM
-# define FAR _far
-# endif
-#endif
-
-/* Compile with -DZLIB_DLL for Windows DLL support */
-#if defined(ZLIB_DLL)
-# if defined(_WINDOWS) || defined(WINDOWS)
-# ifdef FAR
-# undef FAR
-# endif
-# include <windows.h>
-# define ZEXPORT WINAPI
-# ifdef WIN32
-# define ZEXPORTVA WINAPIV
-# else
-# define ZEXPORTVA FAR _cdecl _export
-# endif
-# endif
-# if defined (__BORLANDC__)
-# if (__BORLANDC__ >= 0x0500) && defined (WIN32)
-# include <windows.h>
-# define ZEXPORT __declspec(dllexport) WINAPI
-# define ZEXPORTRVA __declspec(dllexport) WINAPIV
-# else
-# if defined (_Windows) && defined (__DLL__)
-# define ZEXPORT _export
-# define ZEXPORTVA _export
-# endif
-# endif
-# endif
-#endif
-
-#if defined (__BEOS__)
-# if defined (ZLIB_DLL)
-# define ZEXTERN extern __declspec(dllexport)
-# else
-# define ZEXTERN extern __declspec(dllimport)
-# endif
-#endif
-
-#ifndef ZEXPORT
-# define ZEXPORT
-#endif
-#ifndef ZEXPORTVA
-# define ZEXPORTVA
-#endif
-#ifndef ZEXTERN
-# define ZEXTERN extern
-#endif
-
-#ifndef FAR
-# define FAR
-#endif
-
-#if !defined(MACOS) && !defined(TARGET_OS_MAC)
-typedef unsigned char Byte; /* 8 bits */
-#endif
-typedef unsigned int uInt; /* 16 bits or more */
-typedef unsigned long uLong; /* 32 bits or more */
-
-#ifdef SMALL_MEDIUM
- /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
-# define Bytef Byte FAR
-#else
- typedef Byte FAR Bytef;
-#endif
-typedef char FAR charf;
-typedef int FAR intf;
-typedef uInt FAR uIntf;
-typedef uLong FAR uLongf;
-
-#ifdef STDC
- typedef void FAR *voidpf;
- typedef void *voidp;
-#else
- typedef Byte FAR *voidpf;
- typedef Byte *voidp;
-#endif
-
-#ifdef HAVE_UNISTD_H
-# include <sys/types.h> /* for off_t */
-# include <unistd.h> /* for SEEK_* and off_t */
-# define z_off_t off_t
-#endif
-#ifndef SEEK_SET
-# define SEEK_SET 0 /* Seek from beginning of file. */
-# define SEEK_CUR 1 /* Seek from current position. */
-# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
-#endif
-#ifndef z_off_t
-# define z_off_t long
-#endif
-
-/* MVS linker does not support external names larger than 8 bytes */
-#if defined(__MVS__)
-# pragma map(deflateInit_,"DEIN")
-# pragma map(deflateInit2_,"DEIN2")
-# pragma map(deflateEnd,"DEEND")
-# pragma map(inflateInit_,"ININ")
-# pragma map(inflateInit2_,"ININ2")
-# pragma map(inflateEnd,"INEND")
-# pragma map(inflateSync,"INSY")
-# pragma map(inflateSetDictionary,"INSEDI")
-# pragma map(inflate_blocks,"INBL")
-# pragma map(inflate_blocks_new,"INBLNE")
-# pragma map(inflate_blocks_free,"INBLFR")
-# pragma map(inflate_blocks_reset,"INBLRE")
-# pragma map(inflate_codes_free,"INCOFR")
-# pragma map(inflate_codes,"INCO")
-# pragma map(inflate_fast,"INFA")
-# pragma map(inflate_flush,"INFLU")
-# pragma map(inflate_mask,"INMA")
-# pragma map(inflate_set_dictionary,"INSEDI2")
-# pragma map(inflate_copyright,"INCOPY")
-# pragma map(inflate_trees_bits,"INTRBI")
-# pragma map(inflate_trees_dynamic,"INTRDY")
-# pragma map(inflate_trees_fixed,"INTRFI")
-# pragma map(inflate_trees_free,"INTRFR")
-#endif
-
-#endif /* _ZCONF_H */
+++ /dev/null
-.TH ZLIB 3 "9 July 1998"
-.SH NAME
-zlib \- compression/decompression library
-.SH SYNOPSIS
-[see
-.I zlib.h
-for full description]
-.SH DESCRIPTION
-The
-.I zlib
-library is a general purpose data compression library.
-The code is thread safe.
-It provides in-memory compression and decompression functions,
-including integrity checks of the uncompressed data.
-This version of the library supports only one compression method (deflation)
-but other algorithms will be added later and will have the same stream interface.
-.LP
-Compression can be done in a single step if the buffers are large enough
-(for example if an input file is mmap'ed),
-or can be done by repeated calls of the compression function.
-In the latter case,
-the application must provide more input and/or consume the output
-(providing more output space) before each call.
-.LP
-The library also supports reading and writing files in
-.I gzip
-(.gz) format
-with an interface similar to that of stdio.
-.LP
-The library does not install any signal handler. The decoder checks
-the consistency of the compressed data, so the library should never
-crash even in case of corrupted input.
-.LP
-All functions of the compression library are documented in the file
-.IR zlib.h.
-The distribution source includes examples of use of the library
-the files
-.I example.c
-and
-.IR minigzip.c .
-.LP
-A Java implementation of
-.IR zlib
-is available in the Java Development Kit 1.1
-.IP
-http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html
-.LP
-A Perl interface to
-.IR zlib ,
-written by Paul Marquess (pmarquess@bfsec.bt.co.uk)
-is available at CPAN (Comprehensive Perl Archive Network) sites,
-such as:
-.IP
-ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib*
-.LP
-A Python interface to
-.IR zlib
-written by A.M. Kuchling <amk@magnet.com>
-is available from the Python Software Association sites, such as:
-.IP
-ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz
-.SH "SEE ALSO"
-Questions about zlib should be sent to:
-.IP
-zlib@quest.jpl.nasa.gov
-or, if this fails, to the author addresses given below.
-The zlib home page is:
-.IP
-http://www.cdrom.com/pub/infozip/zlib/
-.LP
-The data format used by the zlib library is described by RFC
-(Request for Comments) 1950 to 1952 in the files:
-.IP
-ftp://ds.internic.net/rfc/rfc1950.txt (zlib format)
-.br
-rfc1951.txt (deflate format)
-.br
-rfc1952.txt (gzip format)
-.LP
-These documents are also available in other formats from:
-.IP
-ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html
-.SH AUTHORS
-Version 1.1.3
-Copyright (C) 1995-1998 Jean-loup Gailly (jloup@gzip.org)
-and Mark Adler (madler@alumni.caltech.edu).
-.LP
-This software is provided "as-is,"
-without any express or implied warranty.
-In no event will the authors be held liable for any damages
-arising from the use of this software.
-See the distribution directory with respect to requirements
-governing redistribution.
-The deflate format used by
-.I zlib
-was defined by Phil Katz.
-The deflate and
-.I zlib
-specifications were written by L. Peter Deutsch.
-Thanks to all the people who reported problems and suggested various
-improvements in
-.IR zlib ;
-who are too numerous to cite here.
-.LP
-UNIX manual page by R. P. C. Rodgers,
-U.S. National Library of Medicine (rodgers@nlm.nih.gov).
-.\" end of man page
+++ /dev/null
-/* zlib.h -- interface of the 'zlib' general purpose compression library
- version 1.1.3, July 9th, 1998
-
- Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- Jean-loup Gailly Mark Adler
- jloup@gzip.org madler@alumni.caltech.edu
-
-
- The data format used by the zlib library is described by RFCs (Request for
- Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt
- (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
-*/
-
-#ifndef _ZLIB_H
-#define _ZLIB_H
-
-#include "zconf.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define ZLIB_VERSION "1.1.3"
-
-/*
- The 'zlib' compression library provides in-memory compression and
- decompression functions, including integrity checks of the uncompressed
- data. This version of the library supports only one compression method
- (deflation) but other algorithms will be added later and will have the same
- stream interface.
-
- Compression can be done in a single step if the buffers are large
- enough (for example if an input file is mmap'ed), or can be done by
- repeated calls of the compression function. In the latter case, the
- application must provide more input and/or consume the output
- (providing more output space) before each call.
-
- The library also supports reading and writing files in gzip (.gz) format
- with an interface similar to that of stdio.
-
- The library does not install any signal handler. The decoder checks
- the consistency of the compressed data, so the library should never
- crash even in case of corrupted input.
-*/
-
-typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
-typedef void (*free_func) OF((voidpf opaque, voidpf address));
-
-struct internal_state;
-
-typedef struct z_stream_s {
- Bytef *next_in; /* next input byte */
- uInt avail_in; /* number of bytes available at next_in */
- uLong total_in; /* total nb of input bytes read so far */
-
- Bytef *next_out; /* next output byte should be put there */
- uInt avail_out; /* remaining free space at next_out */
- uLong total_out; /* total nb of bytes output so far */
-
- char *msg; /* last error message, NULL if no error */
- struct internal_state FAR *state; /* not visible by applications */
-
- alloc_func zalloc; /* used to allocate the internal state */
- free_func zfree; /* used to free the internal state */
- voidpf opaque; /* private data object passed to zalloc and zfree */
-
- int data_type; /* best guess about the data type: ascii or binary */
- uLong adler; /* adler32 value of the uncompressed data */
- uLong reserved; /* reserved for future use */
-} z_stream;
-
-typedef z_stream FAR *z_streamp;
-
-/*
- The application must update next_in and avail_in when avail_in has
- dropped to zero. It must update next_out and avail_out when avail_out
- has dropped to zero. The application must initialize zalloc, zfree and
- opaque before calling the init function. All other fields are set by the
- compression library and must not be updated by the application.
-
- The opaque value provided by the application will be passed as the first
- parameter for calls of zalloc and zfree. This can be useful for custom
- memory management. The compression library attaches no meaning to the
- opaque value.
-
- zalloc must return Z_NULL if there is not enough memory for the object.
- If zlib is used in a multi-threaded application, zalloc and zfree must be
- thread safe.
-
- On 16-bit systems, the functions zalloc and zfree must be able to allocate
- exactly 65536 bytes, but will not be required to allocate more than this
- if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
- pointers returned by zalloc for objects of exactly 65536 bytes *must*
- have their offset normalized to zero. The default allocation function
- provided by this library ensures this (see zutil.c). To reduce memory
- requirements and avoid any allocation of 64K objects, at the expense of
- compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
-
- The fields total_in and total_out can be used for statistics or
- progress reports. After compression, total_in holds the total size of
- the uncompressed data and may be saved for use in the decompressor
- (particularly if the decompressor wants to decompress everything in
- a single step).
-*/
-
- /* constants */
-
-#define Z_NO_FLUSH 0
-#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
-#define Z_SYNC_FLUSH 2
-#define Z_FULL_FLUSH 3
-#define Z_FINISH 4
-/* Allowed flush values; see deflate() below for details */
-
-#define Z_OK 0
-#define Z_STREAM_END 1
-#define Z_NEED_DICT 2
-#define Z_ERRNO (-1)
-#define Z_STREAM_ERROR (-2)
-#define Z_DATA_ERROR (-3)
-#define Z_MEM_ERROR (-4)
-#define Z_BUF_ERROR (-5)
-#define Z_VERSION_ERROR (-6)
-/* Return codes for the compression/decompression functions. Negative
- * values are errors, positive values are used for special but normal events.
- */
-
-#define Z_NO_COMPRESSION 0
-#define Z_BEST_SPEED 1
-#define Z_BEST_COMPRESSION 9
-#define Z_DEFAULT_COMPRESSION (-1)
-/* compression levels */
-
-#define Z_FILTERED 1
-#define Z_HUFFMAN_ONLY 2
-#define Z_DEFAULT_STRATEGY 0
-/* compression strategy; see deflateInit2() below for details */
-
-#define Z_BINARY 0
-#define Z_ASCII 1
-#define Z_UNKNOWN 2
-/* Possible values of the data_type field */
-
-#define Z_DEFLATED 8
-/* The deflate compression method (the only one supported in this version) */
-
-#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */
-
-#define zlib_version zlibVersion()
-/* for compatibility with versions < 1.0.2 */
-
- /* basic functions */
-
-ZEXTERN const char * ZEXPORT zlibVersion OF((void));
-/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
- If the first character differs, the library code actually used is
- not compatible with the zlib.h header file used by the application.
- This check is automatically made by deflateInit and inflateInit.
- */
-
-/*
-ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
-
- Initializes the internal stream state for compression. The fields
- zalloc, zfree and opaque must be initialized before by the caller.
- If zalloc and zfree are set to Z_NULL, deflateInit updates them to
- use default allocation functions.
-
- The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
- 1 gives best speed, 9 gives best compression, 0 gives no compression at
- all (the input data is simply copied a block at a time).
- Z_DEFAULT_COMPRESSION requests a default compromise between speed and
- compression (currently equivalent to level 6).
-
- deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_STREAM_ERROR if level is not a valid compression level,
- Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
- with the version assumed by the caller (ZLIB_VERSION).
- msg is set to null if there is no error message. deflateInit does not
- perform any compression: this will be done by deflate().
-*/
-
-
-ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
-/*
- deflate compresses as much data as possible, and stops when the input
- buffer becomes empty or the output buffer becomes full. It may introduce some
- output latency (reading input without producing any output) except when
- forced to flush.
-
- The detailed semantics are as follows. deflate performs one or both of the
- following actions:
-
- - Compress more input starting at next_in and update next_in and avail_in
- accordingly. If not all input can be processed (because there is not
- enough room in the output buffer), next_in and avail_in are updated and
- processing will resume at this point for the next call of deflate().
-
- - Provide more output starting at next_out and update next_out and avail_out
- accordingly. This action is forced if the parameter flush is non zero.
- Forcing flush frequently degrades the compression ratio, so this parameter
- should be set only when necessary (in interactive applications).
- Some output may be provided even if flush is not set.
-
- Before the call of deflate(), the application should ensure that at least
- one of the actions is possible, by providing more input and/or consuming
- more output, and updating avail_in or avail_out accordingly; avail_out
- should never be zero before the call. The application can consume the
- compressed output when it wants, for example when the output buffer is full
- (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
- and with zero avail_out, it must be called again after making room in the
- output buffer because there might be more output pending.
-
- If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
- flushed to the output buffer and the output is aligned on a byte boundary, so
- that the decompressor can get all input data available so far. (In particular
- avail_in is zero after the call if enough output space has been provided
- before the call.) Flushing may degrade compression for some compression
- algorithms and so it should be used only when necessary.
-
- If flush is set to Z_FULL_FLUSH, all output is flushed as with
- Z_SYNC_FLUSH, and the compression state is reset so that decompression can
- restart from this point if previous compressed data has been damaged or if
- random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
- the compression.
-
- If deflate returns with avail_out == 0, this function must be called again
- with the same value of the flush parameter and more output space (updated
- avail_out), until the flush is complete (deflate returns with non-zero
- avail_out).
-
- If the parameter flush is set to Z_FINISH, pending input is processed,
- pending output is flushed and deflate returns with Z_STREAM_END if there
- was enough output space; if deflate returns with Z_OK, this function must be
- called again with Z_FINISH and more output space (updated avail_out) but no
- more input data, until it returns with Z_STREAM_END or an error. After
- deflate has returned Z_STREAM_END, the only possible operations on the
- stream are deflateReset or deflateEnd.
-
- Z_FINISH can be used immediately after deflateInit if all the compression
- is to be done in a single step. In this case, avail_out must be at least
- 0.1% larger than avail_in plus 12 bytes. If deflate does not return
- Z_STREAM_END, then it must be called again as described above.
-
- deflate() sets strm->adler to the adler32 checksum of all input read
- so far (that is, total_in bytes).
-
- deflate() may update data_type if it can make a good guess about
- the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered
- binary. This field is only for information purposes and does not affect
- the compression algorithm in any manner.
-
- deflate() returns Z_OK if some progress has been made (more input
- processed or more output produced), Z_STREAM_END if all input has been
- consumed and all output has been produced (only when flush is set to
- Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
- if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
- (for example avail_in or avail_out was zero).
-*/
-
-
-ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
-/*
- All dynamically allocated data structures for this stream are freed.
- This function discards any unprocessed input and does not flush any
- pending output.
-
- deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
- stream state was inconsistent, Z_DATA_ERROR if the stream was freed
- prematurely (some input or output was discarded). In the error case,
- msg may be set but then points to a static string (which must not be
- deallocated).
-*/
-
-
-/*
-ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
-
- Initializes the internal stream state for decompression. The fields
- next_in, avail_in, zalloc, zfree and opaque must be initialized before by
- the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
- value depends on the compression method), inflateInit determines the
- compression method from the zlib header and allocates all data structures
- accordingly; otherwise the allocation will be deferred to the first call of
- inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
- use default allocation functions.
-
- inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
- version assumed by the caller. msg is set to null if there is no error
- message. inflateInit does not perform any decompression apart from reading
- the zlib header if present: this will be done by inflate(). (So next_in and
- avail_in may be modified, but next_out and avail_out are unchanged.)
-*/
-
-
-ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
-/*
- inflate decompresses as much data as possible, and stops when the input
- buffer becomes empty or the output buffer becomes full. It may some
- introduce some output latency (reading input without producing any output)
- except when forced to flush.
-
- The detailed semantics are as follows. inflate performs one or both of the
- following actions:
-
- - Decompress more input starting at next_in and update next_in and avail_in
- accordingly. If not all input can be processed (because there is not
- enough room in the output buffer), next_in is updated and processing
- will resume at this point for the next call of inflate().
-
- - Provide more output starting at next_out and update next_out and avail_out
- accordingly. inflate() provides as much output as possible, until there
- is no more input data or no more space in the output buffer (see below
- about the flush parameter).
-
- Before the call of inflate(), the application should ensure that at least
- one of the actions is possible, by providing more input and/or consuming
- more output, and updating the next_* and avail_* values accordingly.
- The application can consume the uncompressed output when it wants, for
- example when the output buffer is full (avail_out == 0), or after each
- call of inflate(). If inflate returns Z_OK and with zero avail_out, it
- must be called again after making room in the output buffer because there
- might be more output pending.
-
- If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much
- output as possible to the output buffer. The flushing behavior of inflate is
- not specified for values of the flush parameter other than Z_SYNC_FLUSH
- and Z_FINISH, but the current implementation actually flushes as much output
- as possible anyway.
-
- inflate() should normally be called until it returns Z_STREAM_END or an
- error. However if all decompression is to be performed in a single step
- (a single call of inflate), the parameter flush should be set to
- Z_FINISH. In this case all pending input is processed and all pending
- output is flushed; avail_out must be large enough to hold all the
- uncompressed data. (The size of the uncompressed data may have been saved
- by the compressor for this purpose.) The next operation on this stream must
- be inflateEnd to deallocate the decompression state. The use of Z_FINISH
- is never required, but can be used to inform inflate that a faster routine
- may be used for the single inflate() call.
-
- If a preset dictionary is needed at this point (see inflateSetDictionary
- below), inflate sets strm-adler to the adler32 checksum of the
- dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise
- it sets strm->adler to the adler32 checksum of all output produced
- so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or
- an error code as described below. At the end of the stream, inflate()
- checks that its computed adler32 checksum is equal to that saved by the
- compressor and returns Z_STREAM_END only if the checksum is correct.
-
- inflate() returns Z_OK if some progress has been made (more input processed
- or more output produced), Z_STREAM_END if the end of the compressed data has
- been reached and all uncompressed output has been produced, Z_NEED_DICT if a
- preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
- corrupted (input stream not conforming to the zlib format or incorrect
- adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent
- (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not
- enough memory, Z_BUF_ERROR if no progress is possible or if there was not
- enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR
- case, the application may then call inflateSync to look for a good
- compression block.
-*/
-
-
-ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
-/*
- All dynamically allocated data structures for this stream are freed.
- This function discards any unprocessed input and does not flush any
- pending output.
-
- inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
- was inconsistent. In the error case, msg may be set but then points to a
- static string (which must not be deallocated).
-*/
-
- /* Advanced functions */
-
-/*
- The following functions are needed only in some special applications.
-*/
-
-/*
-ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
- int level,
- int method,
- int windowBits,
- int memLevel,
- int strategy));
-
- This is another version of deflateInit with more compression options. The
- fields next_in, zalloc, zfree and opaque must be initialized before by
- the caller.
-
- The method parameter is the compression method. It must be Z_DEFLATED in
- this version of the library.
-
- The windowBits parameter is the base two logarithm of the window size
- (the size of the history buffer). It should be in the range 8..15 for this
- version of the library. Larger values of this parameter result in better
- compression at the expense of memory usage. The default value is 15 if
- deflateInit is used instead.
-
- The memLevel parameter specifies how much memory should be allocated
- for the internal compression state. memLevel=1 uses minimum memory but
- is slow and reduces compression ratio; memLevel=9 uses maximum memory
- for optimal speed. The default value is 8. See zconf.h for total memory
- usage as a function of windowBits and memLevel.
-
- The strategy parameter is used to tune the compression algorithm. Use the
- value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
- filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no
- string match). Filtered data consists mostly of small values with a
- somewhat random distribution. In this case, the compression algorithm is
- tuned to compress them better. The effect of Z_FILTERED is to force more
- Huffman coding and less string matching; it is somewhat intermediate
- between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects
- the compression ratio but not the correctness of the compressed output even
- if it is not set appropriately.
-
- deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
- method). msg is set to null if there is no error message. deflateInit2 does
- not perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
- const Bytef *dictionary,
- uInt dictLength));
-/*
- Initializes the compression dictionary from the given byte sequence
- without producing any compressed output. This function must be called
- immediately after deflateInit, deflateInit2 or deflateReset, before any
- call of deflate. The compressor and decompressor must use exactly the same
- dictionary (see inflateSetDictionary).
-
- The dictionary should consist of strings (byte sequences) that are likely
- to be encountered later in the data to be compressed, with the most commonly
- used strings preferably put towards the end of the dictionary. Using a
- dictionary is most useful when the data to be compressed is short and can be
- predicted with good accuracy; the data can then be compressed better than
- with the default empty dictionary.
-
- Depending on the size of the compression data structures selected by
- deflateInit or deflateInit2, a part of the dictionary may in effect be
- discarded, for example if the dictionary is larger than the window size in
- deflate or deflate2. Thus the strings most likely to be useful should be
- put at the end of the dictionary, not at the front.
-
- Upon return of this function, strm->adler is set to the Adler32 value
- of the dictionary; the decompressor may later use this value to determine
- which dictionary has been used by the compressor. (The Adler32 value
- applies to the whole dictionary even if only a subset of the dictionary is
- actually used by the compressor.)
-
- deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
- inconsistent (for example if deflate has already been called for this stream
- or if the compression method is bsort). deflateSetDictionary does not
- perform any compression: this will be done by deflate().
-*/
-
-ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
- z_streamp source));
-/*
- Sets the destination stream as a complete copy of the source stream.
-
- This function can be useful when several compression strategies will be
- tried, for example when there are several ways of pre-processing the input
- data with a filter. The streams that will be discarded should then be freed
- by calling deflateEnd. Note that deflateCopy duplicates the internal
- compression state which can be quite large, so this strategy is slow and
- can consume lots of memory.
-
- deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
- (such as zalloc being NULL). msg is left unchanged in both source and
- destination.
-*/
-
-ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
-/*
- This function is equivalent to deflateEnd followed by deflateInit,
- but does not free and reallocate all the internal compression state.
- The stream will keep the same compression level and any other attributes
- that may have been set by deflateInit2.
-
- deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
- int level,
- int strategy));
-/*
- Dynamically update the compression level and compression strategy. The
- interpretation of level and strategy is as in deflateInit2. This can be
- used to switch between compression and straight copy of the input data, or
- to switch to a different kind of input data requiring a different
- strategy. If the compression level is changed, the input available so far
- is compressed with the old level (and may be flushed); the new level will
- take effect only at the next call of deflate().
-
- Before the call of deflateParams, the stream state must be set as for
- a call of deflate(), since the currently available input may have to
- be compressed and flushed. In particular, strm->avail_out must be non-zero.
-
- deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
- stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
- if strm->avail_out was zero.
-*/
-
-/*
-ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
- int windowBits));
-
- This is another version of inflateInit with an extra parameter. The
- fields next_in, avail_in, zalloc, zfree and opaque must be initialized
- before by the caller.
-
- The windowBits parameter is the base two logarithm of the maximum window
- size (the size of the history buffer). It should be in the range 8..15 for
- this version of the library. The default value is 15 if inflateInit is used
- instead. If a compressed stream with a larger window size is given as
- input, inflate() will return with the error code Z_DATA_ERROR instead of
- trying to allocate a larger window.
-
- inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative
- memLevel). msg is set to null if there is no error message. inflateInit2
- does not perform any decompression apart from reading the zlib header if
- present: this will be done by inflate(). (So next_in and avail_in may be
- modified, but next_out and avail_out are unchanged.)
-*/
-
-ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
- const Bytef *dictionary,
- uInt dictLength));
-/*
- Initializes the decompression dictionary from the given uncompressed byte
- sequence. This function must be called immediately after a call of inflate
- if this call returned Z_NEED_DICT. The dictionary chosen by the compressor
- can be determined from the Adler32 value returned by this call of
- inflate. The compressor and decompressor must use exactly the same
- dictionary (see deflateSetDictionary).
-
- inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
- parameter is invalid (such as NULL dictionary) or the stream state is
- inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
- expected one (incorrect Adler32 value). inflateSetDictionary does not
- perform any decompression: this will be done by subsequent calls of
- inflate().
-*/
-
-ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
-/*
- Skips invalid compressed data until a full flush point (see above the
- description of deflate with Z_FULL_FLUSH) can be found, or until all
- available input is skipped. No output is provided.
-
- inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
- if no more input was provided, Z_DATA_ERROR if no flush point has been found,
- or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
- case, the application may save the current current value of total_in which
- indicates where valid compressed data was found. In the error case, the
- application may repeatedly call inflateSync, providing more input each time,
- until success or end of the input data.
-*/
-
-ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
-/*
- This function is equivalent to inflateEnd followed by inflateInit,
- but does not free and reallocate all the internal decompression state.
- The stream will keep attributes that may have been set by inflateInit2.
-
- inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
- stream state was inconsistent (such as zalloc or state being NULL).
-*/
-
-
- /* utility functions */
-
-/*
- The following utility functions are implemented on top of the
- basic stream-oriented functions. To simplify the interface, some
- default options are assumed (compression level and memory usage,
- standard memory allocation functions). The source code of these
- utility functions can easily be modified if you need special options.
-*/
-
-ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen));
-/*
- Compresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be at least 0.1% larger than
- sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the
- compressed buffer.
- This function can be used to compress a whole file at once if the
- input file is mmap'ed.
- compress returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer.
-*/
-
-ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen,
- int level));
-/*
- Compresses the source buffer into the destination buffer. The level
- parameter has the same meaning as in deflateInit. sourceLen is the byte
- length of the source buffer. Upon entry, destLen is the total size of the
- destination buffer, which must be at least 0.1% larger than sourceLen plus
- 12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
-
- compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
- memory, Z_BUF_ERROR if there was not enough room in the output buffer,
- Z_STREAM_ERROR if the level parameter is invalid.
-*/
-
-ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen,
- const Bytef *source, uLong sourceLen));
-/*
- Decompresses the source buffer into the destination buffer. sourceLen is
- the byte length of the source buffer. Upon entry, destLen is the total
- size of the destination buffer, which must be large enough to hold the
- entire uncompressed data. (The size of the uncompressed data must have
- been saved previously by the compressor and transmitted to the decompressor
- by some mechanism outside the scope of this compression library.)
- Upon exit, destLen is the actual size of the compressed buffer.
- This function can be used to decompress a whole file at once if the
- input file is mmap'ed.
-
- uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
- enough memory, Z_BUF_ERROR if there was not enough room in the output
- buffer, or Z_DATA_ERROR if the input data was corrupted.
-*/
-
-
-typedef voidp gzFile;
-
-ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
-/*
- Opens a gzip (.gz) file for reading or writing. The mode parameter
- is as in fopen ("rb" or "wb") but can also include a compression level
- ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
- Huffman only compression as in "wb1h". (See the description
- of deflateInit2 for more information about the strategy parameter.)
-
- gzopen can be used to read a file which is not in gzip format; in this
- case gzread will directly read from the file without decompression.
-
- gzopen returns NULL if the file could not be opened or if there was
- insufficient memory to allocate the (de)compression state; errno
- can be checked to distinguish the two cases (if errno is zero, the
- zlib error is Z_MEM_ERROR). */
-
-ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
-/*
- gzdopen() associates a gzFile with the file descriptor fd. File
- descriptors are obtained from calls like open, dup, creat, pipe or
- fileno (in the file has been previously opened with fopen).
- The mode parameter is as in gzopen.
- The next call of gzclose on the returned gzFile will also close the
- file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
- descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
- gzdopen returns NULL if there was insufficient memory to allocate
- the (de)compression state.
-*/
-
-ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
-/*
- Dynamically update the compression level or strategy. See the description
- of deflateInit2 for the meaning of these parameters.
- gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
- opened for writing.
-*/
-
-ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
-/*
- Reads the given number of uncompressed bytes from the compressed file.
- If the input file was not in gzip format, gzread copies the given number
- of bytes into the buffer.
- gzread returns the number of uncompressed bytes actually read (0 for
- end of file, -1 for error). */
-
-ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
- const voidp buf, unsigned len));
-/*
- Writes the given number of uncompressed bytes into the compressed file.
- gzwrite returns the number of uncompressed bytes actually written
- (0 in case of error).
-*/
-
-ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...));
-/*
- Converts, formats, and writes the args to the compressed file under
- control of the format string, as in fprintf. gzprintf returns the number of
- uncompressed bytes actually written (0 in case of error).
-*/
-
-ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
-/*
- Writes the given null-terminated string to the compressed file, excluding
- the terminating null character.
- gzputs returns the number of characters written, or -1 in case of error.
-*/
-
-ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
-/*
- Reads bytes from the compressed file until len-1 characters are read, or
- a newline character is read and transferred to buf, or an end-of-file
- condition is encountered. The string is then terminated with a null
- character.
- gzgets returns buf, or Z_NULL in case of error.
-*/
-
-ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
-/*
- Writes c, converted to an unsigned char, into the compressed file.
- gzputc returns the value that was written, or -1 in case of error.
-*/
-
-ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
-/*
- Reads one byte from the compressed file. gzgetc returns this byte
- or -1 in case of end of file or error.
-*/
-
-ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
-/*
- Flushes all pending output into the compressed file. The parameter
- flush is as in the deflate() function. The return value is the zlib
- error number (see function gzerror below). gzflush returns Z_OK if
- the flush parameter is Z_FINISH and all output could be flushed.
- gzflush should be called only when strictly necessary because it can
- degrade compression.
-*/
-
-ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
- z_off_t offset, int whence));
-/*
- Sets the starting position for the next gzread or gzwrite on the
- given compressed file. The offset represents a number of bytes in the
- uncompressed data stream. The whence parameter is defined as in lseek(2);
- the value SEEK_END is not supported.
- If the file is opened for reading, this function is emulated but can be
- extremely slow. If the file is opened for writing, only forward seeks are
- supported; gzseek then compresses a sequence of zeroes up to the new
- starting position.
-
- gzseek returns the resulting offset location as measured in bytes from
- the beginning of the uncompressed stream, or -1 in case of error, in
- particular if the file is opened for writing and the new starting position
- would be before the current position.
-*/
-
-ZEXTERN int ZEXPORT gzrewind OF((gzFile file));
-/*
- Rewinds the given file. This function is supported only for reading.
-
- gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
-*/
-
-ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file));
-/*
- Returns the starting position for the next gzread or gzwrite on the
- given compressed file. This position represents a number of bytes in the
- uncompressed data stream.
-
- gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
-*/
-
-ZEXTERN int ZEXPORT gzeof OF((gzFile file));
-/*
- Returns 1 when EOF has previously been detected reading the given
- input stream, otherwise zero.
-*/
-
-ZEXTERN int ZEXPORT gzclose OF((gzFile file));
-/*
- Flushes all pending output if necessary, closes the compressed file
- and deallocates all the (de)compression state. The return value is the zlib
- error number (see function gzerror below).
-*/
-
-ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
-/*
- Returns the error message for the last error which occurred on the
- given compressed file. errnum is set to zlib error number. If an
- error occurred in the file system and not in the compression library,
- errnum is set to Z_ERRNO and the application may consult errno
- to get the exact error code.
-*/
-
- /* checksum functions */
-
-/*
- These functions are not related to compression but are exported
- anyway because they might be useful in applications using the
- compression library.
-*/
-
-ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
-
-/*
- Update a running Adler-32 checksum with the bytes buf[0..len-1] and
- return the updated checksum. If buf is NULL, this function returns
- the required initial value for the checksum.
- An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
- much faster. Usage example:
-
- uLong adler = adler32(0L, Z_NULL, 0);
-
- while (read_buffer(buffer, length) != EOF) {
- adler = adler32(adler, buffer, length);
- }
- if (adler != original_adler) error();
-*/
-
-ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len));
-/*
- Update a running crc with the bytes buf[0..len-1] and return the updated
- crc. If buf is NULL, this function returns the required initial value
- for the crc. Pre- and post-conditioning (one's complement) is performed
- within this function so it shouldn't be done by the application.
- Usage example:
-
- uLong crc = crc32(0L, Z_NULL, 0);
-
- while (read_buffer(buffer, length) != EOF) {
- crc = crc32(crc, buffer, length);
- }
- if (crc != original_crc) error();
-*/
-
-
- /* various hacks, don't look :) */
-
-/* deflateInit and inflateInit are macros to allow checking the zlib version
- * and the compiler's view of z_stream:
- */
-ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
- const char *version, int stream_size));
-ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
- const char *version, int stream_size));
-ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method,
- int windowBits, int memLevel,
- int strategy, const char *version,
- int stream_size));
-ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits,
- const char *version, int stream_size));
-#define deflateInit(strm, level) \
- deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit(strm) \
- inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
-#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
- deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
- (strategy), ZLIB_VERSION, sizeof(z_stream))
-#define inflateInit2(strm, windowBits) \
- inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
-
-
-#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL)
- struct internal_state {int dummy;}; /* hack for buggy compilers */
-#endif
-
-ZEXTERN const char * ZEXPORT zError OF((int err));
-ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z));
-ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void));
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _ZLIB_H */
+++ /dev/null
-/* zutil.c -- target dependent utility functions for the compression library
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* @(#) $Id: zutil.c,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#include "zutil.h"
-
-struct internal_state {int dummy;}; /* for buggy compilers */
-
-#ifndef STDC
-extern void exit OF((int));
-#endif
-
-const char *z_errmsg[10] = {
-"need dictionary", /* Z_NEED_DICT 2 */
-"stream end", /* Z_STREAM_END 1 */
-"", /* Z_OK 0 */
-"file error", /* Z_ERRNO (-1) */
-"stream error", /* Z_STREAM_ERROR (-2) */
-"data error", /* Z_DATA_ERROR (-3) */
-"insufficient memory", /* Z_MEM_ERROR (-4) */
-"buffer error", /* Z_BUF_ERROR (-5) */
-"incompatible version",/* Z_VERSION_ERROR (-6) */
-""};
-
-
-const char * ZEXPORT zlibVersion()
-{
- return ZLIB_VERSION;
-}
-
-#ifdef DEBUG
-
-# ifndef verbose
-# define verbose 0
-# endif
-int z_verbose = verbose;
-
-void z_error (m)
- char *m;
-{
- fprintf(stderr, "%s\n", m);
- exit(1);
-}
-#endif
-
-/* exported to allow conversion of error code to string for compress() and
- * uncompress()
- */
-const char * ZEXPORT zError(err)
- int err;
-{
- return ERR_MSG(err);
-}
-
-
-#ifndef HAVE_MEMCPY
-
-void zmemcpy(dest, source, len)
- Bytef* dest;
- const Bytef* source;
- uInt len;
-{
- if (len == 0) return;
- do {
- *dest++ = *source++; /* ??? to be unrolled */
- } while (--len != 0);
-}
-
-int zmemcmp(s1, s2, len)
- const Bytef* s1;
- const Bytef* s2;
- uInt len;
-{
- uInt j;
-
- for (j = 0; j < len; j++) {
- if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
- }
- return 0;
-}
-
-void zmemzero(dest, len)
- Bytef* dest;
- uInt len;
-{
- if (len == 0) return;
- do {
- *dest++ = 0; /* ??? to be unrolled */
- } while (--len != 0);
-}
-#endif
-
-#ifdef __TURBOC__
-#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__)
-/* Small and medium model in Turbo C are for now limited to near allocation
- * with reduced MAX_WBITS and MAX_MEM_LEVEL
- */
-# define MY_ZCALLOC
-
-/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
- * and farmalloc(64K) returns a pointer with an offset of 8, so we
- * must fix the pointer. Warning: the pointer must be put back to its
- * original form in order to free it, use zcfree().
- */
-
-#define MAX_PTR 10
-/* 10*64K = 640K */
-
-local int next_ptr = 0;
-
-typedef struct ptr_table_s {
- voidpf org_ptr;
- voidpf new_ptr;
-} ptr_table;
-
-local ptr_table table[MAX_PTR];
-/* This table is used to remember the original form of pointers
- * to large buffers (64K). Such pointers are normalized with a zero offset.
- * Since MSDOS is not a preemptive multitasking OS, this table is not
- * protected from concurrent access. This hack doesn't work anyway on
- * a protected system like OS/2. Use Microsoft C instead.
- */
-
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
-{
- voidpf buf = opaque; /* just to make some compilers happy */
- ulg bsize = (ulg)items*size;
-
- /* If we allocate less than 65520 bytes, we assume that farmalloc
- * will return a usable pointer which doesn't have to be normalized.
- */
- if (bsize < 65520L) {
- buf = farmalloc(bsize);
- if (*(ush*)&buf != 0) return buf;
- } else {
- buf = farmalloc(bsize + 16L);
- }
- if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
- table[next_ptr].org_ptr = buf;
-
- /* Normalize the pointer to seg:0 */
- *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
- *(ush*)&buf = 0;
- table[next_ptr++].new_ptr = buf;
- return buf;
-}
-
-void zcfree (voidpf opaque, voidpf ptr)
-{
- int n;
- if (*(ush*)&ptr != 0) { /* object < 64K */
- farfree(ptr);
- return;
- }
- /* Find the original pointer */
- for (n = 0; n < next_ptr; n++) {
- if (ptr != table[n].new_ptr) continue;
-
- farfree(table[n].org_ptr);
- while (++n < next_ptr) {
- table[n-1] = table[n];
- }
- next_ptr--;
- return;
- }
- ptr = opaque; /* just to make some compilers happy */
- Assert(0, "zcfree: ptr not found");
-}
-#endif
-#endif /* __TURBOC__ */
-
-
-#if defined(M_I86) && !defined(__32BIT__)
-/* Microsoft C in 16-bit mode */
-
-# define MY_ZCALLOC
-
-#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
-# define _halloc halloc
-# define _hfree hfree
-#endif
-
-voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
-{
- if (opaque) opaque = 0; /* to make compiler happy */
- return _halloc((long)items, size);
-}
-
-void zcfree (voidpf opaque, voidpf ptr)
-{
- if (opaque) opaque = 0; /* to make compiler happy */
- _hfree(ptr);
-}
-
-#endif /* MSC */
-
-
-#ifndef MY_ZCALLOC /* Any system without a special alloc function */
-
-#ifndef STDC
-extern voidp calloc OF((uInt items, uInt size));
-extern void free OF((voidpf ptr));
-#endif
-
-voidpf zcalloc (opaque, items, size)
- voidpf opaque;
- unsigned items;
- unsigned size;
-{
- if (opaque) items += size - size; /* make compiler happy */
- return (voidpf)calloc(items, size);
-}
-
-void zcfree (opaque, ptr)
- voidpf opaque;
- voidpf ptr;
-{
- free(ptr);
- if (opaque) return; /* make compiler happy */
-}
-
-#endif /* MY_ZCALLOC */
+++ /dev/null
-/* zutil.h -- internal interface and configuration of the compression library
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* @(#) $Id: zutil.h,v 1.1.1.2 2001/09/28 22:45:40 tholo Exp $ */
-
-#ifndef _Z_UTIL_H
-#define _Z_UTIL_H
-
-#include "zlib.h"
-
-#ifdef STDC
-# include <stddef.h>
-# include <string.h>
-# include <stdlib.h>
-#endif
-#ifdef NO_ERRNO_H
- extern int errno;
-#else
-# include <errno.h>
-#endif
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-typedef unsigned char uch;
-typedef uch FAR uchf;
-typedef unsigned short ush;
-typedef ush FAR ushf;
-typedef unsigned long ulg;
-
-extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */
-/* (size given to avoid silly warnings with Visual C++) */
-
-#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
-
-#define ERR_RETURN(strm,err) \
- return (strm->msg = (char*)ERR_MSG(err), (err))
-/* To be used only when the state is known to be valid */
-
- /* common constants */
-
-#ifndef DEF_WBITS
-# define DEF_WBITS MAX_WBITS
-#endif
-/* default windowBits for decompression. MAX_WBITS is for compression only */
-
-#if MAX_MEM_LEVEL >= 8
-# define DEF_MEM_LEVEL 8
-#else
-# define DEF_MEM_LEVEL MAX_MEM_LEVEL
-#endif
-/* default memLevel */
-
-#define STORED_BLOCK 0
-#define STATIC_TREES 1
-#define DYN_TREES 2
-/* The three kinds of block type */
-
-#define MIN_MATCH 3
-#define MAX_MATCH 258
-/* The minimum and maximum match lengths */
-
-#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
-
- /* target dependencies */
-
-#ifdef MSDOS
-# define OS_CODE 0x00
-# if defined(__TURBOC__) || defined(__BORLANDC__)
-# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
- /* Allow compilation with ANSI keywords only enabled */
- void _Cdecl farfree( void *block );
- void *_Cdecl farmalloc( unsigned long nbytes );
-# else
-# include <alloc.h>
-# endif
-# else /* MSC or DJGPP */
-# include <malloc.h>
-# endif
-#endif
-
-#ifdef OS2
-# define OS_CODE 0x06
-#endif
-
-#ifdef WIN32 /* Window 95 & Windows NT */
-# define OS_CODE 0x0b
-#endif
-
-#if defined(VAXC) || defined(VMS)
-# define OS_CODE 0x02
-# define F_OPEN(name, mode) \
- fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
-#endif
-
-#ifdef AMIGA
-# define OS_CODE 0x01
-#endif
-
-#if defined(ATARI) || defined(atarist)
-# define OS_CODE 0x05
-#endif
-
-#if defined(MACOS) || defined(TARGET_OS_MAC)
-# define OS_CODE 0x07
-# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
-# include <unix.h> /* for fdopen */
-# else
-# ifndef fdopen
-# define fdopen(fd,mode) NULL /* No fdopen() */
-# endif
-# endif
-#endif
-
-#ifdef __50SERIES /* Prime/PRIMOS */
-# define OS_CODE 0x0F
-#endif
-
-#ifdef TOPS20
-# define OS_CODE 0x0a
-#endif
-
-#if defined(_BEOS_) || defined(RISCOS)
-# define fdopen(fd,mode) NULL /* No fdopen() */
-#endif
-
-#if (defined(_MSC_VER) && (_MSC_VER > 600))
-# define fdopen(fd,type) _fdopen(fd,type)
-#endif
-
-
- /* Common defaults */
-
-#ifndef OS_CODE
-# define OS_CODE 0x03 /* assume Unix */
-#endif
-
-#ifndef F_OPEN
-# define F_OPEN(name, mode) fopen((name), (mode))
-#endif
-
- /* functions */
-
-#ifdef HAVE_STRERROR
- extern char *strerror OF((int));
-# define zstrerror(errnum) strerror(errnum)
-#else
-# define zstrerror(errnum) ""
-#endif
-
-#if defined(pyr)
-# define NO_MEMCPY
-#endif
-#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
- /* Use our own functions for small and medium model with MSC <= 5.0.
- * You may have to use the same strategy for Borland C (untested).
- * The __SC__ check is for Symantec.
- */
-# define NO_MEMCPY
-#endif
-#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
-# define HAVE_MEMCPY
-#endif
-#ifdef HAVE_MEMCPY
-# ifdef SMALL_MEDIUM /* MSDOS small or medium model */
-# define zmemcpy _fmemcpy
-# define zmemcmp _fmemcmp
-# define zmemzero(dest, len) _fmemset(dest, 0, len)
-# else
-# define zmemcpy memcpy
-# define zmemcmp memcmp
-# define zmemzero(dest, len) memset(dest, 0, len)
-# endif
-#else
- extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
- extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
- extern void zmemzero OF((Bytef* dest, uInt len));
-#endif
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# include <stdio.h>
- extern int z_verbose;
- extern void z_error OF((char *m));
-# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
-# define Trace(x) {if (z_verbose>=0) fprintf x ;}
-# define Tracev(x) {if (z_verbose>0) fprintf x ;}
-# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
-#else
-# define Assert(cond,msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c,x)
-# define Tracecv(c,x)
-#endif
-
-
-typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf,
- uInt len));
-voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
-void zcfree OF((voidpf opaque, voidpf ptr));
-
-#define ZALLOC(strm, items, size) \
- (*((strm)->zalloc))((strm)->opaque, (items), (size))
-#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
-#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
-
-#endif /* _Z_UTIL_H */
projects / openbsd / commitdiff