2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley
8 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
9 * Support code is derived from software contributed to Berkeley
10 * by Atsushi Murai (amurai@spec.co.jp).
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95
40 static const char copyright[] =
41 "@(#) Copyright (c) 1992, 1993, 1994\n\
42 The Regents of the University of California. All rights reserved.\n";
47 static char sccsid[] = "@(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95";
49 static const char rcsid[] =
55 #include <sys/param.h>
56 #include <sys/mount.h>
57 #include <sys/module.h>
58 #include <sys/iconv.h>
59 #include <sys/linker.h>
61 #include <arpa/inet.h>
73 static struct mntopt mopts[] = {
79 static int get_ssector(const char *dev);
80 static int set_charset(struct iovec **, int *iovlen, const char *);
84 main(int argc, char **argv)
89 char *dev, *dir, *p, *val, mntpath[MAXPATHLEN];
91 int ssector; /* starting sector, 0 for 1st session */
92 char fstype[] = "cd9660";
96 mntflags = verbose = 0;
99 while ((ch = getopt(argc, argv, "begjo:rs:vC:")) != -1)
102 build_iovec(&iov, &iovlen, "brokenjoliet", NULL, (size_t)-1);
105 build_iovec(&iov, &iovlen, "extatt", NULL, (size_t)-1);
108 build_iovec(&iov, &iovlen, "gens", NULL, (size_t)-1);
111 build_iovec(&iov, &iovlen, "nojoliet", NULL, (size_t)-1);
114 getmntopts(optarg, mopts, &mntflags, NULL);
115 p = strchr(optarg, '=');
121 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1);
124 build_iovec(&iov, &iovlen, "norrip", NULL, (size_t)-1);
127 ssector = atoi(optarg);
133 if (set_charset(&iov, &iovlen, optarg) == -1)
134 err(EX_OSERR, "cd9660_iconv");
135 build_iovec(&iov, &iovlen, "kiconv", NULL, (size_t)-1);
151 * Resolve the mountpoint with realpath(3) and remove unnecessary
152 * slashes from the devicename if there are any.
154 if (checkpath(dir, mntpath) != 0)
155 err(1, "%s", mntpath);
156 (void)rmslashes(dev, dev);
160 * The start of the session has not been specified on
161 * the command line. If we can successfully read the
162 * TOC of a CD-ROM, use the last data track we find.
163 * Otherwise, just use 0, in order to mount the very
164 * first session. This is compatible with the
165 * historic behaviour of mount_cd9660(8). If the user
166 * has specified -s <ssector> above, we don't get here
167 * and leave the user's will.
169 if ((ssector = get_ssector(dev)) == -1) {
171 printf("could not determine starting sector, "
172 "using very first session\n");
175 printf("using starting sector %d\n", ssector);
177 mntflags |= MNT_RDONLY;
178 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
179 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
180 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
181 build_iovec_argf(&iov, &iovlen, "ssector", "%d", ssector);
183 if (nmount(iov, iovlen, mntflags) < 0)
191 (void)fprintf(stderr,
192 "usage: mount_cd9660 [-begjrv] [-C charset] [-o options] [-s startsector]\n"
198 get_ssector(const char *dev)
200 struct ioc_toc_header h;
201 struct ioc_read_toc_entry t;
202 struct cd_toc_entry toc_buffer[100];
203 int fd, ntocentries, i;
205 if ((fd = open(dev, O_RDONLY)) == -1)
207 if (ioctl(fd, CDIOREADTOCHEADER, &h) == -1) {
212 ntocentries = h.ending_track - h.starting_track + 1;
213 if (ntocentries > 100) {
214 /* unreasonable, only 100 allowed */
218 t.address_format = CD_LBA_FORMAT;
219 t.starting_track = 0;
220 t.data_len = ntocentries * sizeof(struct cd_toc_entry);
223 if (ioctl(fd, CDIOREADTOCENTRYS, (char *) &t) == -1) {
229 for (i = ntocentries - 1; i >= 0; i--)
230 if ((toc_buffer[i].control & 4) != 0)
231 /* found a data track */
236 return ntohl(toc_buffer[i].addr.lba);
240 set_charset(struct iovec **iov, int *iovlen, const char *localcs)
243 char *cs_disk; /* disk charset for Joliet cs conversion */
244 char *cs_local; /* local charset for Joliet cs conversion */
249 if (modfind("cd9660_iconv") < 0)
250 if (kldload("cd9660_iconv") < 0 || modfind("cd9660_iconv") < 0) {
251 warnx( "cannot find or load \"cd9660_iconv\" kernel module");
255 if ((cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL)
257 if ((cs_local = malloc(ICONV_CSNMAXLEN)) == NULL) {
261 strncpy(cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN);
262 strncpy(cs_local, kiconv_quirkcs(localcs, KICONV_VENDOR_MICSFT),
264 error = kiconv_add_xlat16_cspairs(cs_disk, cs_local);
268 build_iovec(iov, iovlen, "cs_disk", cs_disk, (size_t)-1);
269 build_iovec(iov, iovlen, "cs_local", cs_local, (size_t)-1);