sbin/mount_cd9660/mount_cd9660.c

   1 /*      $NetBSD: mount_cd9660.c,v 1.30 2009/01/03 23:09:41 christos Exp $       */
   2
   3 /*
   4  * Copyright (c) 1992, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   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).
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  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.
  23  *
  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
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)mount_cd9660.c      8.7 (Berkeley) 5/1/95
  37  */
  38
  39 #include <sys/cdefs.h>
  40 #ifndef lint
  41 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
  42  The Regents of the University of California.  All rights reserved.");
  43 #endif /* not lint */
  44
  45 #ifndef lint
  46 #if 0
  47 static char sccsid[] = "@(#)mount_cd9660.c      8.7 (Berkeley) 5/1/95";
  48 #else
  49 __RCSID("$NetBSD: mount_cd9660.c,v 1.30 2009/01/03 23:09:41 christos Exp $");
  50 #endif
  51 #endif /* not lint */
  52
  53 #include <sys/param.h>
  54 #include <sys/mount.h>
  55
  56 #include <err.h>
  57 #include <stdlib.h>
  58 #include <stdio.h>
  59 #include <string.h>
  60 #include <unistd.h>
  61 #include <util.h>
  62
  63 #include <isofs/cd9660/cd9660_mount.h>
  64
  65 #include <mntopts.h>
  66
  67 #include "mountprog.h"
  68 #include "mount_cd9660.h"
  69
  70 static const struct mntopt mopts[] = {
  71         MOPT_STDOPTS,
  72         MOPT_UPDATE,
  73         MOPT_GETARGS,
  74         { "extatt", 0, ISOFSMNT_EXTATT, 1 },
  75         { "gens", 0, ISOFSMNT_GENS, 1 },
  76         { "maplcase", 1, ISOFSMNT_NOCASETRANS, 1 },
  77         { "casetrans", 1, ISOFSMNT_NOCASETRANS, 1 },
  78         { "nrr", 0, ISOFSMNT_NORRIP, 1 },
  79         { "rrip", 1, ISOFSMNT_NORRIP, 1 },
  80         { "joliet", 1, ISOFSMNT_NOJOLIET, 1 },
  81         { "rrcaseins", 0, ISOFSMNT_RRCASEINS, 1 },
  82         MOPT_NULL,
  83 };
  84
  85 static void     usage(void);
  86
  87 #ifndef MOUNT_NOMAIN
  88 int
  89 main(int argc, char **argv)
  90 {
  91
  92         setprogname(argv[0]);
  93         return mount_cd9660(argc, argv);
  94 }
  95 #endif
  96
  97 void
  98 mount_cd9660_parseargs(int argc, char **argv,
  99         struct iso_args *args, int *mntflags,
 100         char *canon_dev, char *canon_dir)
 101 {
 102         int ch, opts;
 103         mntoptparse_t mp;
 104         char *dev, *dir;
 105
 106         memset(args, 0, sizeof(*args));
 107         *mntflags = opts = 0;
 108         optind = optreset = 1;
 109         while ((ch = getopt(argc, argv, "egijo:r")) != -1)
 110                 switch (ch) {
 111                 case 'e':
 112                         /* obsolete, retained for compatibility only, use
 113                          * -o extatt */
 114                         opts |= ISOFSMNT_EXTATT;
 115                         break;
 116                 case 'g':
 117                         /* obsolete, retained for compatibility only, use
 118                          * -o gens */
 119                         opts |= ISOFSMNT_GENS;
 120                         break;
 121                 case 'j':
 122                         /* obsolete, retained fo compatibility only, use
 123                          * -o nojoliet */
 124                         opts |= ISOFSMNT_NOJOLIET;
 125                         break;
 126                 case 'o':
 127                         mp = getmntopts(optarg, mopts, mntflags, &opts);
 128                         if (mp == NULL)
 129                                 err(1, "getmntopts");
 130                         freemntopts(mp);
 131                         break;
 132                 case 'r':
 133                         /* obsolete, retained for compatibility only, use
 134                          * -o norrip */
 135                         opts |= ISOFSMNT_NORRIP;
 136                         break;
 137                 case '?':
 138                 default:
 139                         usage();
 140                 }
 141
 142         argc -= optind;
 143         argv += optind;
 144
 145         if (argc != 2)
 146                 usage();
 147
 148         dev = argv[0];
 149         dir = argv[1];
 150
 151         pathadj(dev, canon_dev);
 152         pathadj(dir, canon_dir);
 153
 154 #define DEFAULT_ROOTUID -2
 155         /*
 156          * ISO 9660 filesystems are not writable.
 157          */
 158         if ((*mntflags & MNT_GETARGS) == 0)
 159                 *mntflags |= MNT_RDONLY;
 160         args->fspec = canon_dev;
 161         args->flags = opts;
 162 }
 163
 164 int
 165 mount_cd9660(int argc, char **argv)
 166 {
 167         struct iso_args args;
 168         char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
 169         int mntflags;
 170
 171         mount_cd9660_parseargs(argc, argv, &args, &mntflags,
 172             canon_dev, canon_dir);
 173
 174         if (mount(MOUNT_CD9660, canon_dir, mntflags, &args, sizeof args) == -1)
 175                 err(1, "%s on %s", canon_dev, canon_dir);
 176         if (mntflags & MNT_GETARGS) {
 177                 char buf[2048];
 178                 (void)snprintb(buf, sizeof(buf), ISOFSMNT_BITS, args.flags);
 179                 printf("%s\n", buf);
 180         }
 181
 182         exit(0);
 183 }
 184
 185 static void
 186 usage(void)
 187 {
 188         (void)fprintf(stderr,
 189                 "usage: %s [-o options] special node\n", getprogname());
 190         exit(1);
 191 }