mount_procfs.c revision 1.14 
1/*	$NetBSD: mount_procfs.c,v 1.14 2003/03/22 11:15:55 jdolecek 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 1.14 2003/03/22 11:15:55 jdolecek 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#include <util.h>
63
64#include <miscfs/procfs/procfs.h>
65
66#include <mntopts.h>
67
68static const struct mntopt mopts[] = {
69	MOPT_STDOPTS,
70	MOPT_GETARGS,
71	{ "linux", 0, PROCFSMNT_LINUXCOMPAT, 1},
72	{ NULL }
73};
74
75int	main __P((int, char *[]));
76int	mount_procfs __P((int argc, char **argv));
77static void	usage __P((void));
78
79#ifndef MOUNT_NOMAIN
80int
81main(argc, argv)
82	int argc;
83	char **argv;
84{
85	return mount_procfs(argc, argv);
86}
87#endif
88
89int
90mount_procfs(argc, argv)
91	int argc;
92	char *argv[];
93{
94	int ch, mntflags, altflags;
95	struct procfs_args args;
96
97	mntflags = altflags = 0;
98	while ((ch = getopt(argc, argv, "o:")) != -1)
99		switch (ch) {
100		case 'o':
101			getmntopts(optarg, mopts, &mntflags, &altflags);
102			break;
103		case '?':
104		default:
105			usage();
106		}
107	argc -= optind;
108	argv += optind;
109
110	if (argc != 2)
111		usage();
112
113	args.version = PROCFS_ARGSVERSION;
114	args.flags = altflags;
115
116	if (mount(MOUNT_PROCFS, argv[1], mntflags, &args))
117		err(1, "procfs on %s", argv[1]);
118	if (mntflags & MNT_GETARGS) {
119		char buf[1024];
120		(void)snprintb(buf, sizeof(buf), PROCFSMNT_BITS, args.flags);
121		printf("version=%d, flags=%s\n", args.version, buf);
122	}
123	exit(0);
124}
125
126static void
127usage()
128{
129	(void)fprintf(stderr,
130		"usage: mount_procfs [-o options] /proc mount_point\n");
131	exit(1);
132}
133