1 /*
2 * Copyright (c) 1990, 1992 Jan-Simon Pendry
3 * Copyright (c) 1992, 1993, 1994
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Jan-Simon Pendry.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California. All rights reserved.
34 * $FreeBSD: src/sbin/mount_std/mount_std.c,v 1.10.2.1 2001/07/30 10:30:07 dd Exp $
35 */
36
37 #include <sys/param.h>
38 #include <sys/mount.h>
39
40 #include <err.h>
41 #include <mntopts.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <sysexits.h>
46 #include <unistd.h>
47
48 static struct mntopt mopts[] = {
49 MOPT_STDOPTS,
50 MOPT_NULL
51 };
52
53 static void usage(void) __dead2;
54 static const char *fsname;
55
56 int
main(int argc,char ** argv)57 main(int argc, char **argv)
58 {
59 int ch, mntflags;
60 char mntpath[MAXPATHLEN];
61 struct vfsconf vfc;
62 int error;
63
64 /*
65 * XXX
66 * mount(8) calls the mount programs with an argv[0] which is
67 * /just/ the filesystem name. So, if there is no underscore
68 * in argv[0], we assume that we are being called from mount(8)
69 * and that argv[0] is thus the name of the filesystem type.
70 */
71 fsname = strrchr(argv[0], '_');
72 if (fsname) {
73 if (strcmp(fsname, "_std") == 0)
74 errx(EX_USAGE, "argv[0] must end in _fsname");
75 fsname++;
76 } else {
77 fsname = argv[0];
78 }
79
80 mntflags = 0;
81 while ((ch = getopt(argc, argv, "o:")) != -1)
82 switch (ch) {
83 case 'o':
84 getmntopts(optarg, mopts, &mntflags, 0);
85 break;
86 case '?':
87 default:
88 usage();
89 }
90 argc -= optind;
91 argv += optind;
92
93 if (argc != 2)
94 usage();
95
96 error = getvfsbyname(fsname, &vfc);
97 if (error && vfsisloadable(fsname)) {
98 if(vfsload(fsname))
99 err(EX_OSERR, "vfsload(%s)", fsname);
100 endvfsent();
101 error = getvfsbyname(fsname, &vfc);
102 }
103 if (error)
104 errx(EX_OSERR, "%s filesystem not available", fsname);
105
106 /* resolve the mountpoint with realpath(3) */
107 checkpath(argv[1], mntpath);
108
109 if (mount(vfc.vfc_name, mntpath, mntflags, NULL))
110 err(EX_OSERR, NULL);
111 exit(0);
112 }
113
114 void
usage(void)115 usage(void)
116 {
117 fprintf(stderr,
118 "usage: mount_%s [-o options] what_to_mount mount_point\n", fsname);
119 exit(EX_USAGE);
120 }
121