sbin/mount_udf/mount_udf.c

   1 /*
   2  * Copyright (c) 1992, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   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).
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  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. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)mount_cd9660.c      8.7 (Berkeley) 5/1/95
  35  *
  36  * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California.  All rights reserved.
  37  * @(#)mount_cd9660.c   8.7 (Berkeley) 5/1/95
  38  * $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.c,v 1.15.2.3 2001/03/14 12:05:01 bp Exp $
  39  */
  40
  41 #include <sys/cdio.h>
  42 #include <sys/file.h>
  43 #include <sys/param.h>
  44 #include <sys/mount.h>
  45 #include <vfs/udf/udf_mount.h>
  46
  47 #include <err.h>
  48 #include <errno.h>
  49 #include <mntopts.h>
  50 #include <stdlib.h>
  51 #include <stdio.h>
  52 #include <string.h>
  53 #include <sysexits.h>
  54 #include <unistd.h>
  55
  56 static struct mntopt mopts[] = {
  57         MOPT_STDOPTS,
  58         MOPT_UPDATE,
  59         MOPT_NULL
  60 };
  61
  62 static void     usage(void) __dead2;
  63
  64 int
  65 main(int argc, char **argv)
  66 {
  67         struct udf_args args;
  68         int ch, mntflags, opts;
  69         char *dev, *dir, mntpath[MAXPATHLEN];
  70         struct vfsconf vfc;
  71         int error, verbose;
  72
  73         mntflags = opts = verbose = 0;
  74         memset(&args, 0, sizeof args);
  75         while ((ch = getopt(argc, argv, "o:v")) != -1)
  76                 switch (ch) {
  77                 case 'o':
  78                         getmntopts(optarg, mopts, &mntflags, &opts);
  79                         break;
  80                 case 'v':
  81                         verbose++;
  82                         break;
  83                 case '?':
  84                 default:
  85                         usage();
  86                 }
  87         argc -= optind;
  88         argv += optind;
  89
  90         if (argc != 2)
  91                 usage();
  92
  93         dev = argv[0];
  94         dir = argv[1];
  95
  96         /*
  97          * Resolve the mountpoint with realpath(3) and remove unnecessary
  98          * slashes from the devicename if there are any.
  99          */
 100         checkpath(dir, mntpath);
 101         rmslashes(dev, dev);
 102
 103 #define DEFAULT_ROOTUID -2
 104         /*
 105          * UDF filesystems are not writeable.
 106          */
 107         mntflags |= MNT_RDONLY;
 108         args.export.ex_flags = MNT_EXRDONLY;
 109         args.fspec = dev;
 110         args.export.ex_root = DEFAULT_ROOTUID;
 111         args.flags = opts;
 112
 113         error = getvfsbyname("udf", &vfc);
 114         if (error && vfsisloadable("udf")) {
 115                 if (vfsload("udf"))
 116                         err(EX_OSERR, "vfsload(udf)");
 117                 endvfsent();    /* flush cache */
 118                 error = getvfsbyname("udf", &vfc);
 119         }
 120         if (error)
 121                 errx(1, "UDF filesystem is not available");
 122
 123         if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
 124                 err(1, "%s", args.fspec);
 125         exit(0);
 126 }
 127
 128 static void
 129 usage(void)
 130 {
 131         fprintf(stderr, "usage: mount_udf [-o options] special node\n");
 132         exit(EX_USAGE);
 133 }