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. 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.
  25  *
  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
  36  * SUCH DAMAGE.
  37  *
  38  *      @(#)mount_cd9660.c      8.7 (Berkeley) 5/1/95
  39  *
  40  * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California.  All rights reserved.
  41  * @(#)mount_cd9660.c   8.7 (Berkeley) 5/1/95
  42  * $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.c,v 1.15.2.3 2001/03/14 12:05:01 bp Exp $
  43  * $DragonFly: src/sbin/mount_udf/mount_udf.c,v 1.3 2004/12/18 21:43:39 swildner Exp $
  44  */
  45
  46 #include <sys/cdio.h>
  47 #include <sys/file.h>
  48 #include <sys/param.h>
  49 #include <sys/mount.h>
  50 #include <vfs/udf/udf_mount.h>
  51
  52 #include <err.h>
  53 #include <errno.h>
  54 #include <stdlib.h>
  55 #include <stdio.h>
  56 #include <string.h>
  57 #include <sysexits.h>
  58 #include <unistd.h>
  59
  60 #include "mntopts.h"
  61
  62 struct mntopt mopts[] = {
  63         MOPT_STDOPTS,
  64         MOPT_UPDATE,
  65         { NULL }
  66 };
  67
  68 void    usage(void);
  69
  70 int
  71 main(int argc, char **argv)
  72 {
  73         struct udf_args args;
  74         int ch, mntflags, opts;
  75         char *dev, *dir, mntpath[MAXPATHLEN];
  76         struct vfsconf vfc;
  77         int error, verbose;
  78
  79         mntflags = opts = verbose = 0;
  80         memset(&args, 0, sizeof args);
  81         while ((ch = getopt(argc, argv, "o:v")) != -1)
  82                 switch (ch) {
  83                 case 'o':
  84                         getmntopts(optarg, mopts, &mntflags, &opts);
  85                         break;
  86                 case 'v':
  87                         verbose++;
  88                         break;
  89                 case '?':
  90                 default:
  91                         usage();
  92                 }
  93         argc -= optind;
  94         argv += optind;
  95
  96         if (argc != 2)
  97                 usage();
  98
  99         dev = argv[0];
 100         dir = argv[1];
 101
 102         /*
 103          * Resolve the mountpoint with realpath(3) and remove unnecessary
 104          * slashes from the devicename if there are any.
 105          */
 106         checkpath(dir, mntpath);
 107         rmslashes(dev, dev);
 108
 109 #define DEFAULT_ROOTUID -2
 110         /*
 111          * UDF filesystems are not writeable.
 112          */
 113         mntflags |= MNT_RDONLY;
 114         args.export.ex_flags = MNT_EXRDONLY;
 115         args.fspec = dev;
 116         args.export.ex_root = DEFAULT_ROOTUID;
 117         args.flags = opts;
 118
 119         error = getvfsbyname("udf", &vfc);
 120         if (error && vfsisloadable("udf")) {
 121                 if (vfsload("udf"))
 122                         err(EX_OSERR, "vfsload(udf)");
 123                 endvfsent();    /* flush cache */
 124                 error = getvfsbyname("udf", &vfc);
 125         }
 126         if (error)
 127                 errx(1, "UDF filesystem is not available");
 128
 129         if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
 130                 err(1, "%s", args.fspec);
 131         exit(0);
 132 }
 133
 134 void
 135 usage(void)
 136 {
 137         fprintf(stderr, "usage: mount_udf [-o options] special node\n");
 138         exit(EX_USAGE);
 139 }