+++ /dev/null
-.\" $OpenBSD: mksuncd.1,v 1.4 2007/05/31 19:19:16 jmc Exp $
-.\"
-.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
-.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-.\" POSSIBILITY OF SUCH DAMAGE.
-.\"
-.Dd $Mdocdate: May 31 2007 $
-.Dt MKSUNCD 1
-.Os
-.Sh NAME
-.Nm mksuncd
-.Nd add a bootable ufs partition to a filesystem image
-.Sh SYNOPSIS
-.Nm mksuncd
-.Ar partition-letter
-.Ar imagefile
-.Ar ufsfile
-.Sh DESCRIPTION
-The
-.Nm
-utility adds the file
-.Ar ufsfile
-to the end of
-.Ar imagefile .
-.Ar ufsfile
-is assumed to be a bootable filesystem image and
-.Ar imagefile
-is assumed to be something like an ISO 9660 filesystem.
-A Sun-style disklabel is expected to already be present
-at the beginning of
-.Ar imagefile ,
-and
-.Nm
-will update that label so that the partition (a-h) given by
-.Ar partition-letter
-points to
-.Ar ufsfile
-within
-.Ar imagefile .
-.Pp
-Based on the label in
-.Ar imagefile ,
-that file is padded so that added files are always on cylinder boundaries.
-This is a requirement of the PROM.
-.Sh BUGS
-This program is not endian or type safe.
-It makes several assumptions about both based on its
-SPARC bias.
+++ /dev/null
-/* $OpenBSD: mksuncd.c,v 1.3 2003/06/02 20:09:40 jason Exp $ */
-
-/*
- * Copyright (c) 2001 Jason L. Wright (jason@thought.net)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * WARNING! WARNING!
- * This program is not type safe (it assumes sparc type sizes) and not
- * endian safe (assumes sparc endianness).
- * WARNING! WARNING!
- */
-
-/*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Lawrence Berkeley Laboratory.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
- */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <err.h>
-#include <string.h>
-
-/*
- * SunOS disk label layout (only relevant portions discovered here).
- * JLW XXX should get these definitions from elsewhere, oh well.
- */
-
-#define SUN_DKMAGIC 55998
-
-/* partition info */
-struct sun_dkpart {
- int sdkp_cyloffset; /* starting cylinder */
- int sdkp_nsectors; /* number of sectors */
-};
-
-struct sun_disklabel { /* total size = 512 bytes */
- char sl_text[128];
- char sl_xxx1[292];
-#define sl_bsdlabel sl_xxx1 /* Embedded OpenBSD label */
- u_short sl_rpm; /* rotational speed */
- u_short sl_pcylinders; /* number of physical cyls */
-#define sl_pcyl sl_pcylinders /* XXX: old sun3 */
- u_short sl_sparespercyl; /* spare sectors per cylinder */
- char sl_xxx3[4];
- u_short sl_interleave; /* interleave factor */
- u_short sl_ncylinders; /* data cylinders */
- u_short sl_acylinders; /* alternate cylinders */
- u_short sl_ntracks; /* tracks per cylinder */
- u_short sl_nsectors; /* sectors per track */
- char sl_xxx4[4];
- struct sun_dkpart sl_part[8]; /* partition layout */
- u_short sl_magic; /* == SUN_DKMAGIC */
- u_short sl_cksum; /* xor checksum of all shorts */
-};
-
-int expand_file(int, off_t);
-void usage(void);
-int adjust_base(int, struct sun_disklabel *);
-int get_label(int, struct sun_disklabel *);
-int append_osfile(int, int);
-off_t cylindersize(int, struct sun_disklabel *);
-int adjust_label(int, struct sun_disklabel *, int, off_t, off_t);
-
-int
-expand_file(int f, off_t len)
-{
- char buf[1024];
- off_t i;
-
- if (lseek(f, 0, SEEK_END) == -1)
- return (-1);
- bzero(buf, sizeof(buf));
- while (len) {
- i = (sizeof(buf) < len) ? sizeof(buf) : len;
- if (write(f, buf, i) != i)
- return (-1);
- len -= i;
- }
- return (0);
-}
-
-void
-usage(void)
-{
- fprintf(stderr, "setpart partition baseimage bootimage\n");
-}
-
-/*
- * Adjust size of base to meet a cylinder boundary.
- */
-int
-adjust_base(int f, struct sun_disklabel *slp)
-{
- struct stat st;
- off_t sz;
-
- if (lseek(f, 0, SEEK_END) == -1)
- err(1, "lseek");
-
- if (fstat(f, &st) == -1)
- err(1, "fstat");
-
- sz = ((off_t)slp->sl_nsectors) *
- ((off_t)slp->sl_ntracks) * ((off_t)512);
-
- if ((st.st_size % sz) != 0) {
- if (expand_file(f, sz - (st.st_size % sz)))
- err(1, "expand_file");
- }
-
- return (0);
-}
-
-int
-get_label(int f, struct sun_disklabel *slp)
-{
- int r;
-
- if (lseek(f, 0, SEEK_SET) == -1)
- err(1, "lseek");
-
- r = read(f, slp, sizeof(*slp));
- if (r == -1)
- err(1, "read");
- if (r != sizeof(*slp))
- errx(1, "short read");
-
- if (slp->sl_ntracks == 0 || slp->sl_ncylinders == 0 ||
- slp->sl_nsectors == 0)
- errx(1, "bogus disklabel");
-
- return (0);
-}
-
-int
-main(int argc, char **argv)
-{
- struct sun_disklabel sl;
- int part, bf, of;
- off_t cylstart, cylsize;
-
- if (argc != 4) {
- usage();
- return (1);
- }
-
- if (argv[1] == NULL || strlen(argv[1]) != 1 ||
- (argv[1][0] < 'a' || argv[1][0] > 'h')) {
- usage();
- return (1);
- }
- part = argv[1][0] - 'a';
-
- if (argv[2] == NULL || argv[3] == NULL) {
- usage();
- return (1);
- }
-
- bf = open(argv[2], O_RDWR);
- if (bf == -1)
- err(1, "open");
-
- of = open(argv[3], O_RDONLY);
- if (of == -1)
- err(1, "open");
-
- if (get_label(bf, &sl))
- return (1);
-
- if (adjust_base(bf, &sl))
- return (1);
-
- cylstart = cylindersize(bf, &sl);
- cylsize = cylindersize(of, &sl);
-
- if (append_osfile(bf, of))
- return (1);
-
- if (adjust_base(bf, &sl))
- return (1);
-
- if (adjust_label(bf, &sl, part, cylstart, cylsize))
- return (1);
-
- close(bf);
- close(of);
-
- return (0);
-}
-
-/*
- * Put our entry into the disklabel, recompute label checksum, and
- * write it back to the disk.
- */
-int
-adjust_label(int f, struct sun_disklabel *slp, int part, off_t start, off_t size)
-{
- u_short sum = 0, *sp;
- int i;
-
- if (start > 65535)
- errx(1, "start too large! %lld", (long long)start);
- if (part < 0 || part > 8)
- errx(1, "invalid partition: %d", part);
- slp->sl_part[part].sdkp_cyloffset = start;
- slp->sl_part[part].sdkp_nsectors =
- size * slp->sl_nsectors * slp->sl_ntracks;
-
- slp->sl_cksum = 0;
- sp = (u_short *)slp;
- for (i = 0; i < sizeof(*slp)/sizeof(u_short); i++) {
- sum ^= *sp;
- sp++;
- }
- slp->sl_cksum = sum;
-
- if (lseek(f, 0, SEEK_SET) == -1)
- return (-1);
-
- i = write(f, slp, sizeof(*slp));
- if (i < 0)
- err(1, "write modified label");
- if (i != sizeof(*slp))
- errx(1, "short write modified label");
- return (0);
-}
-
-int
-append_osfile(int outf, int inf)
-{
- char buf[512];
- int r, len;
-
- while (1) {
- len = read(inf, buf, sizeof(buf));
- if (len < 0)
- err(1, "read osfile");
- if (len == 0)
- return (0);
-
- r = write(outf, buf, len);
- if (r < 0)
- err(1, "write basefile");
- if (r != len)
- errx(1, "short write basefile");
- }
-}
-
-off_t
-cylindersize(int f, struct sun_disklabel *slp)
-{
- struct stat st;
- off_t sz, r;
-
- if (fstat(f, &st) == -1)
- err(1, "fstat");
-
- sz = ((off_t)slp->sl_nsectors) *
- ((off_t)slp->sl_ntracks) * ((off_t)512);
-
- r = st.st_size / sz;
-
- if ((st.st_size % sz) == 0)
- return (r);
- return (r + 1);
-}
projects / openbsd / commitdiff