mount_procfs.c revision 1.12 
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
48static 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
67static const struct mntopt mopts[] = {
68	MOPT_STDOPTS,
69	{ "linux", 0, PROCFSMNT_LINUXCOMPAT, 1},
70	{ NULL }
71};
72
73int	main __P((int, char *[]));
74int	mount_procfs __P((int argc, char **argv));
75static void	usage __P((void));
76
77#ifndef MOUNT_NOMAIN
78int
79main(argc, argv)
80	int argc;
81	char **argv;
82{
83	return mount_procfs(argc, argv);
84}
85#endif
86
87int
88mount_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
119static void
120usage()
121{
122	(void)fprintf(stderr,
123		"usage: mount_procfs [-o options] /proc mount_point\n");
124	exit(1);
125}
126