/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1992, 1993, 1994 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension * Support code is derived from software contributed to Berkeley * by Atsushi Murai (amurai@spec.co.jp). * * 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. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_UPDATE, MOPT_END }; static gid_t a_gid(const char *); static uid_t a_uid(const char *); static mode_t a_mask(const char *); static int get_ssector(const char *dev); static int set_charset(struct iovec **, int *iovlen, const char *); void usage(void); int main(int argc, char **argv) { struct iovec *iov; int iovlen; int ch, mntflags; char *dev, *dir, *p, *val, mntpath[MAXPATHLEN]; int verbose; int ssector; /* starting sector, 0 for 1st session */ char fstype[] = "cd9660"; iov = NULL; iovlen = 0; mntflags = verbose = 0; ssector = -1; while ((ch = getopt(argc, argv, "begG:jm:M:o:rs:U:vC:")) != -1) switch (ch) { case 'b': build_iovec(&iov, &iovlen, "brokenjoliet", NULL, (size_t)-1); break; case 'e': build_iovec(&iov, &iovlen, "extatt", NULL, (size_t)-1); break; case 'g': build_iovec(&iov, &iovlen, "gens", NULL, (size_t)-1); break; case 'G': build_iovec_argf(&iov, &iovlen, "gid", "%d", a_gid(optarg)); break; case 'm': build_iovec_argf(&iov, &iovlen, "mask", "%u", a_mask(optarg)); break; case 'M': build_iovec_argf(&iov, &iovlen, "dirmask", "%u", a_mask(optarg)); break; case 'j': build_iovec(&iov, &iovlen, "nojoliet", NULL, (size_t)-1); break; case 'o': getmntopts(optarg, mopts, &mntflags, NULL); p = strchr(optarg, '='); val = NULL; if (p != NULL) { *p = '\0'; val = p + 1; } build_iovec(&iov, &iovlen, optarg, val, (size_t)-1); break; case 'r': build_iovec(&iov, &iovlen, "norrip", NULL, (size_t)-1); break; case 's': ssector = atoi(optarg); break; case 'U': build_iovec_argf(&iov, &iovlen, "uid", "%d", a_uid(optarg)); break; case 'v': verbose++; break; case 'C': if (set_charset(&iov, &iovlen, optarg) == -1) err(EX_OSERR, "cd9660_iconv"); build_iovec(&iov, &iovlen, "kiconv", NULL, (size_t)-1); break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 2) usage(); dev = argv[0]; dir = argv[1]; /* * Resolve the mountpoint with realpath(3) and remove unnecessary * slashes from the devicename if there are any. */ if (checkpath(dir, mntpath) != 0) err(1, "%s", mntpath); (void)rmslashes(dev, dev); if (ssector == -1) { /* * The start of the session has not been specified on * the command line. If we can successfully read the * TOC of a CD-ROM, use the last data track we find. * Otherwise, just use 0, in order to mount the very * first session. This is compatible with the * historic behaviour of mount_cd9660(8). If the user * has specified -s above, we don't get here * and leave the user's will. */ if ((ssector = get_ssector(dev)) == -1) { if (verbose) printf("could not determine starting sector, " "using very first session\n"); ssector = 0; } else if (verbose) printf("using starting sector %d\n", ssector); } mntflags |= MNT_RDONLY; build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1); build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1); build_iovec(&iov, &iovlen, "from", dev, (size_t)-1); build_iovec_argf(&iov, &iovlen, "ssector", "%d", ssector); if (nmount(iov, iovlen, mntflags) < 0) err(1, "%s", dev); exit(0); } void usage(void) { (void)fprintf(stderr, "usage: mount_cd9660 [-begjrv] [-C charset] [-G gid] [-m mask] [-M mask]\n" " [-o options] [-U uid] [-s startsector] special node\n"); exit(EX_USAGE); } static int get_ssector(const char *dev) { struct ioc_toc_header h; struct ioc_read_toc_entry t; struct cd_toc_entry toc_buffer[100]; int fd, ntocentries, i; if ((fd = open(dev, O_RDONLY)) == -1) return -1; if (ioctl(fd, CDIOREADTOCHEADER, &h) == -1) { close(fd); return -1; } ntocentries = h.ending_track - h.starting_track + 1; if (ntocentries > 100) { /* unreasonable, only 100 allowed */ close(fd); return -1; } t.address_format = CD_LBA_FORMAT; t.starting_track = 0; t.data_len = ntocentries * sizeof(struct cd_toc_entry); t.data = toc_buffer; if (ioctl(fd, CDIOREADTOCENTRYS, (char *) &t) == -1) { close(fd); return -1; } close(fd); for (i = ntocentries - 1; i >= 0; i--) if ((toc_buffer[i].control & 4) != 0) /* found a data track */ break; if (i < 0) return -1; return ntohl(toc_buffer[i].addr.lba); } static int set_charset(struct iovec **iov, int *iovlen, const char *localcs) { int error; char *cs_disk; /* disk charset for Joliet cs conversion */ char *cs_local; /* local charset for Joliet cs conversion */ cs_disk = NULL; cs_local = NULL; if (modfind("cd9660_iconv") < 0) if (kldload("cd9660_iconv") < 0 || modfind("cd9660_iconv") < 0) { warnx( "cannot find or load \"cd9660_iconv\" kernel module"); return (-1); } if ((cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL) return (-1); if ((cs_local = malloc(ICONV_CSNMAXLEN)) == NULL) { free(cs_disk); return (-1); } strncpy(cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN); strncpy(cs_local, kiconv_quirkcs(localcs, KICONV_VENDOR_MICSFT), ICONV_CSNMAXLEN); error = kiconv_add_xlat16_cspairs(cs_disk, cs_local); if (error) return (-1); build_iovec(iov, iovlen, "cs_disk", cs_disk, (size_t)-1); build_iovec(iov, iovlen, "cs_local", cs_local, (size_t)-1); return (0); } static gid_t a_gid(const char *s) { struct group *gr; const char *gname; gid_t gid; if ((gr = getgrnam(s)) != NULL) gid = gr->gr_gid; else { for (gname = s; *s && isdigit(*s); ++s); if (!*s) gid = atoi(gname); else errx(EX_NOUSER, "unknown group id: %s", gname); } return (gid); } static uid_t a_uid(const char *s) { struct passwd *pw; const char *uname; uid_t uid; if ((pw = getpwnam(s)) != NULL) uid = pw->pw_uid; else { for (uname = s; *s && isdigit(*s); ++s); if (!*s) uid = atoi(uname); else errx(EX_NOUSER, "unknown user id: %s", uname); } return (uid); } static mode_t a_mask(const char *s) { int done, rv; char *ep; done = 0; rv = -1; if (*s >= '0' && *s <= '7') { done = 1; rv = strtol(optarg, &ep, 8); } if (!done || rv < 0 || *ep) errx(EX_USAGE, "invalid file mode: %s", s); return (rv); }