1 /* $OpenBSD: mount_ffs.c,v 1.26 2022/12/04 23:50:46 cheloha Exp $ */
2 /* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */
3
4 /*-
5 * Copyright (c) 1993, 1994
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/types.h>
34 #include <sys/mount.h>
35
36 #include <err.h>
37 #include <errno.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <unistd.h>
42 #include <limits.h>
43
44 #include "mntopts.h"
45
46 void ffs_usage(void);
47
48 static const struct mntopt mopts[] = {
49 MOPT_STDOPTS,
50 MOPT_WXALLOWED,
51 MOPT_NOPERM,
52 MOPT_ASYNC,
53 MOPT_SYNC,
54 MOPT_UPDATE,
55 MOPT_RELOAD,
56 MOPT_FORCE,
57 MOPT_SOFTDEP,
58 { NULL }
59 };
60
61 int
main(int argc,char * argv[])62 main(int argc, char *argv[])
63 {
64 struct ufs_args args; /* XXX ffs_args */
65 int ch, mntflags;
66 char fs_name[PATH_MAX], *errcause;
67
68 mntflags = 0;
69 optind = optreset = 1; /* Reset for parse of new argv. */
70 while ((ch = getopt(argc, argv, "o:")) != -1)
71 switch (ch) {
72 case 'o':
73 getmntopts(optarg, mopts, &mntflags);
74 break;
75 default:
76 ffs_usage();
77 }
78 argc -= optind;
79 argv += optind;
80
81 if (argc != 2)
82 ffs_usage();
83
84 args.fspec = argv[0]; /* The name of the device file. */
85 if (realpath(argv[1], fs_name) == NULL) /* The mount point. */
86 err(1, "realpath %s", argv[1]);
87
88 #define DEFAULT_ROOTUID -2
89 args.export_info.ex_root = DEFAULT_ROOTUID;
90 if (mntflags & MNT_RDONLY)
91 args.export_info.ex_flags = MNT_EXRDONLY;
92 else
93 args.export_info.ex_flags = 0;
94
95 if (mntflags & MNT_NOPERM)
96 mntflags |= MNT_NODEV | MNT_NOEXEC;
97
98 if (mount(MOUNT_FFS, fs_name, mntflags, &args) == -1) {
99 switch (errno) {
100 case EMFILE:
101 errcause = "mount table full";
102 break;
103 case EOPNOTSUPP:
104 errcause = "filesystem not supported by kernel";
105 break;
106 case EROFS:
107 errcause =
108 "filesystem must be mounted read-only; you may need to run fsck";
109 break;
110 default:
111 errcause = strerror(errno);
112 break;
113 }
114 errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
115 }
116 exit(0);
117 }
118
119 void
ffs_usage(void)120 ffs_usage(void)
121 {
122 (void)fprintf(stderr, "usage: mount_ffs [-o options] special node\n");
123 exit(1);
124 }
125