Allow creation of archives with block sizes up to 64512 bytes

but complain about non-portability if > 32256 bytes.
Brought up by George Robbins <grr@shandakor.tharsis.com>

diff --git a/bin/pax/buf_subs.c b/bin/pax/buf_subs.c
index c4bbe04..7706127 100644 (file)
--- a/bin/pax/buf_subs.c
+++ b/bin/pax/buf_subs.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: buf_subs.c,v 1.3 1996/06/23 14:20:30 deraadt Exp $    */
+/*     $OpenBSD: buf_subs.c,v 1.4 1997/04/06 06:11:10 millert Exp $    */
 /*     $NetBSD: buf_subs.c,v 1.5 1995/03/21 09:07:08 cgd Exp $ */
 
 /*-
@@ -42,7 +42,7 @@
 #if 0
 static char sccsid[] = "@(#)buf_subs.c 8.2 (Berkeley) 4/18/94";
 #else
-static char rcsid[] = "$OpenBSD: buf_subs.c,v 1.3 1996/06/23 14:20:30 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: buf_subs.c,v 1.4 1997/04/06 06:11:10 millert Exp $";
 #endif
 #endif /* not lint */
 
@@ -117,6 +117,11 @@ wr_start()
                    wrblksz, BLKMULT);
                return(-1);
        }
+       if (wrblksz > MAXBLK_POSIX) {
+               paxwarn(0, "Write block size of %d larger than POSIX max %d, archive may not be portable",
+                       wrblksz, MAXBLK_POSIX);
+               return(-1);
+       }
 
        /*
         * we only allow wrblksz to be used with all archive operations 

diff --git a/bin/pax/cpio.1 b/bin/pax/cpio.1
index 75ca1ce..639bc07 100644 (file)
--- a/bin/pax/cpio.1
+++ b/bin/pax/cpio.1
@@ -27,7 +27,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"    $OpenBSD: cpio.1,v 1.2 1997/03/02 09:46:40 tholo Exp $
+.\"    $OpenBSD: cpio.1,v 1.3 1997/04/06 06:11:11 millert Exp $
 .\"
 .Dd February 16, 1997
 .Dt CPIO 1
@@ -36,7 +36,7 @@
 .Nm cpio
 .Nd copy file archives in and out
 .Sh SYNOPSIS
-.Nm cpio
+.Nm
 .Fl o
 .Op Fl aABcLvzZ
 .Op Fl C Ar bytes
@@ -45,7 +45,7 @@
 .Op Fl O Ar archive
 .Ar "< name-list"
 .Op Ar "> archive"
-.Nm cpio
+.Nm
 .Fl i
 .Op Fl bBcdfmrsStuvzZ6
 .Op Fl C Ar bytes
@@ -55,7 +55,7 @@
 .Op Fl I Ar archive
 .Op Ar "pattern ..."
 .Op Ar "< archive"
-.Nm cpio
+.Nm
 .Fl p
 .Op Fl adlLmuv
 .Ar destination-directory

diff --git a/bin/pax/pax.1 b/bin/pax/pax.1
index 38fc183..590c9df 100644 (file)
--- a/bin/pax/pax.1
+++ b/bin/pax/pax.1
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: pax.1,v 1.4 1997/02/20 06:54:35 tholo Exp $
+.\"    $OpenBSD: pax.1,v 1.5 1997/04/06 06:11:13 millert Exp $
 .\"    $NetBSD: pax.1,v 1.3 1995/03/21 09:07:37 cgd Exp $
 .\"
 .\" Copyright (c) 1992 Keith Muller.
@@ -405,7 +405,10 @@ block the output at a positive decimal integer number of
 bytes per write to the archive file.
 The
 .Ar blocksize
-must be a multiple of 512 bytes with a maximum of 32256 bytes.
+must be a multiple of 512 bytes with a maximum of 64512 bytes.
+Archives larger than 32256 bytes violate the
+.Tn POSIX
+standard and will not be portable to all systems.
 A
 .Ar blocksize
 can end with

diff --git a/bin/pax/pax.h b/bin/pax/pax.h
index 1930aa6..6406407 100644 (file)
--- a/bin/pax/pax.h
+++ b/bin/pax/pax.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pax.h,v 1.7 1997/02/27 23:32:59 michaels Exp $        */
+/*     $OpenBSD: pax.h,v 1.8 1997/04/06 06:11:14 millert Exp $ */
 /*     $NetBSD: pax.h,v 1.3 1995/03/21 09:07:41 cgd Exp $      */
 
 /*-
@@ -44,9 +44,10 @@
  * BSD PAX global data structures and constants.
  */
 
-#define        MAXBLK          32256   /* MAX blocksize supported (posix SPEC) */
+#define        MAXBLK          64512   /* MAX blocksize supported (posix SPEC) */
                                /* WARNING: increasing MAXBLK past 32256 */
                                /* will violate posix spec. */
+#define        MAXBLK_POSIX    32256   /* MAX blocksize supported as per POSIX */
 #define BLKMULT                512     /* blocksize must be even mult of 512 bytes */
                                /* Don't even think of changing this */
 #define DEVBLK         8192    /* default read blksize for devices */
@@ -89,7 +90,7 @@ typedef struct {
        int bsz;                /* default block size. used when the user */
                                /* does not specify a blocksize for writing */
                                /* Appends continue to with the blocksize */
-                               /* the archive is currently using.*/
+                               /* the archive is currently using. */
        int hsz;                /* Header size in bytes. this is the size of */
                                /* the smallest header this format supports. */
                                /* Headers are assumed to fit in a BLKMULT. */

diff --git a/bin/pax/tar.1 b/bin/pax/tar.1
index 1010e49..d00827d 100644 (file)
--- a/bin/pax/tar.1
+++ b/bin/pax/tar.1
@@ -27,7 +27,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"    $OpenBSD: tar.1,v 1.8 1997/04/05 22:36:18 millert Exp $
+.\"    $OpenBSD: tar.1,v 1.9 1997/04/06 06:11:16 millert Exp $
 .\"
 .Dd June 11, 1996
 .Dt TAR 1
@@ -86,7 +86,10 @@ flags may be used:
 .It Fl b Ar "blocking factor"
 Set blocking factor to use for the archive,
 .Nm
-uses 512 byte blocks.  The default is 20, the maximum is 63.
+uses 512 byte blocks.  The default is 20, the maximum is 126.
+Archives with a blocking factor larger 63 violate the
+.Tn POSIX
+standard and will not be portable to all systems.
 .It Fl e
 Stop after first error.
 .It Fl f Ar archive