2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * @(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95
42 static char copyright[] =
43 "@(#) Copyright (c) 1992, 1993, 1994\n\
44 The Regents of the University of California. All rights reserved.\n";
49 static char sccsid[] = "@(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95";
51 static const char rcsid[] =
57 #include <sys/param.h>
58 #include <sys/mount.h>
59 #include <sys/../isofs/cd9660/cd9660_mount.h>
61 #include <arpa/inet.h>
73 struct mntopt mopts[] = {
76 { "extatt", 0, ISOFSMNT_EXTATT, 1 },
77 { "gens", 0, ISOFSMNT_GENS, 1 },
78 { "rrip", 1, ISOFSMNT_NORRIP, 1 },
79 { "joliet", 1, ISOFSMNT_NOJOLIET, 1 },
80 { "strictjoliet", 1, ISOFSMNT_BROKENJOLIET, 1 },
84 int get_ssector(const char *dev);
88 main(int argc, char **argv)
91 int ch, mntflags, opts;
92 char *dev, *dir, mntpath[MAXPATHLEN];
96 mntflags = opts = verbose = 0;
97 memset(&args, 0, sizeof args);
99 while ((ch = getopt(argc, argv, "begjo:rs:v")) != -1)
102 opts |= ISOFSMNT_BROKENJOLIET;
105 opts |= ISOFSMNT_EXTATT;
108 opts |= ISOFSMNT_GENS;
111 opts |= ISOFSMNT_NOJOLIET;
114 getmntopts(optarg, mopts, &mntflags, &opts);
117 opts |= ISOFSMNT_NORRIP;
120 args.ssector = atoi(optarg);
139 * Resolve the mountpoint with realpath(3) and remove unnecessary
140 * slashes from the devicename if there are any.
142 (void)checkpath(dir, mntpath);
143 (void)rmslashes(dev, dev);
145 #define DEFAULT_ROOTUID -2
147 * ISO 9660 filesystems are not writeable.
149 mntflags |= MNT_RDONLY;
150 args.export.ex_flags = MNT_EXRDONLY;
152 args.export.ex_root = DEFAULT_ROOTUID;
155 if (args.ssector == -1) {
157 * The start of the session has not been specified on
158 * the command line. If we can successfully read the
159 * TOC of a CD-ROM, use the last data track we find.
160 * Otherwise, just use 0, in order to mount the very
161 * first session. This is compatible with the
162 * historic behaviour of mount_cd9660(8). If the user
163 * has specified -s <ssector> above, we don't get here
164 * and leave the user's will.
166 if ((args.ssector = get_ssector(dev)) == -1) {
168 printf("could not determine starting sector, "
169 "using very first session\n");
172 printf("using starting sector %d\n", args.ssector);
175 error = getvfsbyname("cd9660", &vfc);
176 if (error && vfsisloadable("cd9660")) {
177 if (vfsload("cd9660"))
178 err(EX_OSERR, "vfsload(cd9660)");
179 endvfsent(); /* flush cache */
180 error = getvfsbyname("cd9660", &vfc);
183 errx(1, "cd9660 filesystem is not available");
185 if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
186 err(1, "%s", args.fspec);
193 (void)fprintf(stderr,
194 "usage: mount_cd9660 [-egrv] [-o options] [-s startsector] special node\n");
199 get_ssector(const char *dev)
201 struct ioc_toc_header h;
202 struct ioc_read_toc_entry t;
203 struct cd_toc_entry toc_buffer[100];
204 int fd, ntocentries, i;
206 if ((fd = open(dev, O_RDONLY)) == -1)
208 if (ioctl(fd, CDIOREADTOCHEADER, &h) == -1) {
213 ntocentries = h.ending_track - h.starting_track + 1;
214 if (ntocentries > 100) {
215 /* unreasonable, only 100 allowed */
219 t.address_format = CD_LBA_FORMAT;
220 t.starting_track = 0;
221 t.data_len = ntocentries * sizeof(struct cd_toc_entry);
224 if (ioctl(fd, CDIOREADTOCENTRYS, (char *) &t) == -1) {
230 for (i = ntocentries - 1; i >= 0; i--)
231 if ((toc_buffer[i].control & 4) != 0)
232 /* found a data track */
237 return ntohl(toc_buffer[i].addr.lba);