xref: /netbsd/sbin/mount_procfs/mount_procfs.c (revision bf9ec67e)
1 /*	$NetBSD: mount_procfs.c,v 1.12 2001/01/17 00:09:54 fvdl Exp $	*/
2 
3 /*
4  * Copyright (c) 1990, 1992, 1993 Jan-Simon Pendry
5  * Copyright (c) 1992, 1993, 1994
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * Jan-Simon Pendry.
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 
40 #include <sys/cdefs.h>
41 #ifndef lint
42 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\n\
43 	The Regents of the University of California.  All rights reserved.\n");
44 #endif /* not lint */
45 
46 #ifndef lint
47 #if 0
48 static char sccsid[] = "@(#)mount_procfs.c	8.4 (Berkeley) 4/26/95";
49 #else
50 __RCSID("$NetBSD: mount_procfs.c,v 1.12 2001/01/17 00:09:54 fvdl Exp $");
51 #endif
52 #endif /* not lint */
53 
54 #include <sys/param.h>
55 #include <sys/mount.h>
56 
57 #include <err.h>
58 #include <unistd.h>
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62 
63 #include <miscfs/procfs/procfs.h>
64 
65 #include "mntopts.h"
66 
67 static const struct mntopt mopts[] = {
68 	MOPT_STDOPTS,
69 	{ "linux", 0, PROCFSMNT_LINUXCOMPAT, 1},
70 	{ NULL }
71 };
72 
73 int	main __P((int, char *[]));
74 int	mount_procfs __P((int argc, char **argv));
75 static void	usage __P((void));
76 
77 #ifndef MOUNT_NOMAIN
78 int
79 main(argc, argv)
80 	int argc;
81 	char **argv;
82 {
83 	return mount_procfs(argc, argv);
84 }
85 #endif
86 
87 int
88 mount_procfs(argc, argv)
89 	int argc;
90 	char *argv[];
91 {
92 	int ch, mntflags, altflags;
93 	struct procfs_args args;
94 
95 	mntflags = altflags = 0;
96 	while ((ch = getopt(argc, argv, "o:")) != -1)
97 		switch (ch) {
98 		case 'o':
99 			getmntopts(optarg, mopts, &mntflags, &altflags);
100 			break;
101 		case '?':
102 		default:
103 			usage();
104 		}
105 	argc -= optind;
106 	argv += optind;
107 
108 	if (argc != 2)
109 		usage();
110 
111 	args.version = PROCFS_ARGSVERSION;
112 	args.flags = altflags;
113 
114 	if (mount(MOUNT_PROCFS, argv[1], mntflags, &args))
115 		err(1, "procfs on %s", argv[1]);
116 	exit(0);
117 }
118 
119 static void
120 usage()
121 {
122 	(void)fprintf(stderr,
123 		"usage: mount_procfs [-o options] /proc mount_point\n");
124 	exit(1);
125 }
126