1 /* $NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $ */
2
3 /*-
4 * Copyright (c) 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __COPYRIGHT("@(#) Copyright (c) 1993, 1994\
35 The Regents of the University of California. All rights reserved.");
36 #endif /* not lint */
37
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)mount_ufs.c 8.4 (Berkeley) 4/26/95";
41 #else
42 __RCSID("$NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $");
43 #endif
44 #endif /* not lint */
45
46 #include <sys/param.h>
47 #include <sys/mount.h>
48 #include <ufs/ufs/ufsmount.h>
49
50 #include <err.h>
51 #include <errno.h>
52 #include <stdio.h>
53 #include <stdlib.h>
54
55 #include <string.h>
56 #include <unistd.h>
57
58 #include <mntopts.h>
59
60 #include "mountprog.h"
61 #include "mount_ext2fs.h"
62
63 __dead static void ext2fs_usage(void);
64
65 static const struct mntopt mopts[] = {
66 MOPT_STDOPTS,
67 MOPT_ASYNC,
68 MOPT_SYNC,
69 MOPT_UPDATE,
70 MOPT_RELOAD,
71 MOPT_FORCE,
72 MOPT_GETARGS,
73 MOPT_NODEVMTIME,
74 MOPT_NOATIME,
75 MOPT_RELATIME,
76 MOPT_NULL,
77 };
78
79 #ifndef MOUNT_NOMAIN
80 int
main(int argc,char * argv[])81 main(int argc, char *argv[])
82 {
83
84 setprogname(argv[0]);
85 return mount_ext2fs(argc, argv);
86 }
87 #endif
88
89 void
mount_ext2fs_parseargs(int argc,char * argv[],struct ufs_args * args,int * mntflags,char * canon_dev,char * canon_dir)90 mount_ext2fs_parseargs(int argc, char *argv[],
91 struct ufs_args *args, int *mntflags,
92 char *canon_dev, char *canon_dir)
93 {
94 int ch;
95 mntoptparse_t mp;
96
97 memset(args, 0, sizeof(*args));
98 *mntflags = 0;
99 optind = optreset = 1; /* Reset for parse of new argv. */
100 while ((ch = getopt(argc, argv, "o:")) != -1)
101 switch (ch) {
102 case 'o':
103 mp = getmntopts(optarg, mopts, mntflags, 0);
104 if (mp == NULL)
105 err(1, "getmntopts");
106 freemntopts(mp);
107 break;
108 case '?':
109 default:
110 ext2fs_usage();
111 }
112 argc -= optind;
113 argv += optind;
114
115 if (argc != 2)
116 ext2fs_usage();
117
118 pathadj(argv[0], canon_dev);
119 args->fspec = canon_dev;
120
121 pathadj(argv[1], canon_dir);
122 }
123
124 int
mount_ext2fs(int argc,char * argv[])125 mount_ext2fs(int argc, char *argv[])
126 {
127 struct ufs_args args; /* XXX ffs_args */
128 char fs_name[MAXPATHLEN], canon_dev[MAXPATHLEN];
129 const char *errcause;
130 int mntflags;
131
132 mount_ext2fs_parseargs(argc, argv, &args, &mntflags,
133 canon_dev, fs_name);
134
135 if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args, sizeof args) == -1) {
136 switch (errno) {
137 case EMFILE:
138 errcause = "mount table full";
139 break;
140 case EINVAL:
141 if (mntflags & MNT_UPDATE)
142 errcause =
143 "specified device does not match mounted device";
144 else
145 errcause = "incorrect super block";
146 break;
147 default:
148 errcause = strerror(errno);
149 break;
150 }
151 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
152 }
153 exit(0);
154 }
155
156 static void
ext2fs_usage(void)157 ext2fs_usage(void)
158 {
159 (void)fprintf(stderr,
160 "usage: %s [-o options] special node\n", getprogname());
161 exit(1);
162 }
163