xref: /netbsd/sbin/mount_cd9660/mount_cd9660.c (revision 6550d01e)
1 /*	$NetBSD: mount_cd9660.c,v 1.31 2009/10/07 20:42:09 pooka 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 1.31 2009/10/07 20:42:09 pooka 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 }
192