xref: /freebsd/sbin/mount_udf/mount_udf.c (revision ee2ea5ceafed78a5bd9810beb9e3ca927180c226)
1 /*
2  * Copyright (c) 1992, 1993, 1994
3  *      The Regents of the University of California.  All rights reserved.
4  * Copyright (c) 2002 Scott Long
5  *
6  * This code is derived from software contributed to Berkeley
7  * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
8  * Support code is derived from software contributed to Berkeley
9  * by Atsushi Murai (amurai@spec.co.jp).
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the University of
22  *	California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  *    may be used to endorse or promote products derived from this software
25  *    without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  * $FreeBSD$
40  */
41 
42 /*
43  * This is just a rip-off of mount_iso9660.c.  It's been vastly simplified
44  * because UDF doesn't take any options at this time.
45  */
46 
47 #include <sys/cdio.h>
48 #include <sys/file.h>
49 #include <sys/param.h>
50 #include <sys/mount.h>
51 #include <fs/udf/udf_mount.h>
52 
53 #include <err.h>
54 #include <errno.h>
55 #include <stdlib.h>
56 #include <stdio.h>
57 #include <string.h>
58 #include <sysexits.h>
59 #include <unistd.h>
60 
61 #include "mntopts.h"
62 
63 struct mntopt mopts[] = {
64 	MOPT_STDOPTS,
65 	MOPT_UPDATE,
66 	{ NULL, 0, 0, 0 }
67 };
68 
69 void	usage(void);
70 
71 int
72 main(int argc, char **argv)
73 {
74 	struct udf_args args;
75 	int ch, mntflags, opts;
76 	char *dev, *dir, mntpath[MAXPATHLEN];
77 	struct vfsconf vfc;
78 	int error, verbose;
79 
80 	mntflags = opts = verbose = 0;
81 	memset(&args, 0, sizeof args);
82 	args.ssector = -1;
83 	while ((ch = getopt(argc, argv, "o:v")) != -1)
84 		switch (ch) {
85 		case 'o':
86 			getmntopts(optarg, mopts, &mntflags, &opts);
87 			break;
88 		case 'v':
89 			verbose++;
90 			break;
91 		case '?':
92 		default:
93 			usage();
94 		}
95 	argc -= optind;
96 	argv += optind;
97 
98 	if (argc != 2)
99 		usage();
100 
101 	dev = argv[0];
102 	dir = argv[1];
103 
104 	/*
105 	 * Resolve the mountpoint with realpath(3) and remove unnecessary
106 	 * slashes from the devicename if there are any.
107 	 */
108 	(void)checkpath(dir, mntpath);
109 	(void)rmslashes(dev, dev);
110 
111 #define DEFAULT_ROOTUID	-2
112 	/*
113 	 * UDF filesystems are not writeable.
114 	 */
115 	mntflags |= MNT_RDONLY;
116 	args.export.ex_flags = MNT_EXRDONLY;
117 	args.fspec = dev;
118 	args.export.ex_root = DEFAULT_ROOTUID;
119 	args.flags = opts;
120 
121 	error = getvfsbyname("udf", &vfc);
122 	if (error && vfsisloadable("udf")) {
123 		if (vfsload("udf"))
124 			err(EX_OSERR, "vfsload(udf)");
125 		endvfsent();	/* flush cache */
126 		error = getvfsbyname("udf", &vfc);
127 	}
128 	if (error)
129 		errx(1, "udf filesystem is not available");
130 
131 	if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
132 		err(1, "%s", args.fspec);
133 	exit(0);
134 }
135 
136 void
137 usage(void)
138 {
139 	(void)fprintf(stderr,
140 		"usage: mount_udf [-v] [-o options] special node\n");
141 	exit(EX_USAGE);
142 }
143