1/*	$NetBSD: mount_fdesc.c,v 1.25 2010/03/31 13:10:10 pooka Exp $	*/
2
3/*
4 * Copyright (c) 1992, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Jan-Simon Pendry.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35/*
36 * Copyright (c) 1990, 1992 Jan-Simon Pendry
37 *
38 * This code is derived from software contributed to Berkeley by
39 * Jan-Simon Pendry.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 * 1. Redistributions of source code must retain the above copyright
45 *    notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 *    notice, this list of conditions and the following disclaimer in the
48 *    documentation and/or other materials provided with the distribution.
49 * 3. All advertising materials mentioning features or use of this software
50 *    must display the following acknowledgement:
51 *	This product includes software developed by the University of
52 *	California, Berkeley and its contributors.
53 * 4. Neither the name of the University nor the names of its contributors
54 *    may be used to endorse or promote products derived from this software
55 *    without specific prior written permission.
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
60 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 * SUCH DAMAGE.
68 */
69
70#include <sys/cdefs.h>
71#ifndef lint
72__COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
73 The Regents of the University of California.  All rights reserved.");
74#endif /* not lint */
75
76#ifndef lint
77#if 0
78static char sccsid[] = "@(#)mount_fdesc.c	8.3 (Berkeley) 4/26/95";
79#else
80__RCSID("$NetBSD: mount_fdesc.c,v 1.25 2010/03/31 13:10:10 pooka Exp $");
81#endif
82#endif /* not lint */
83
84#include <sys/param.h>
85#include <sys/mount.h>
86
87#include <err.h>
88#include <unistd.h>
89#include <stdio.h>
90#include <stdlib.h>
91#include <string.h>
92
93#include <mntopts.h>
94
95#include "mount_fdesc.h"
96
97static const struct mntopt mopts[] = {
98	MOPT_STDOPTS,
99	MOPT_GETARGS,
100	MOPT_NULL,
101};
102
103__dead static void	usage(void);
104int	mount_fdesc(int argc, char **argv);
105
106#ifndef MOUNT_NOMAIN
107int
108main(int argc, char **argv)
109{
110	return mount_fdesc(argc, argv);
111}
112#endif
113
114void
115mount_fdesc_parseargs(int argc, char *argv[], void *dummy, int *mntflags,
116	char *canon_dev, char *canon_dir)
117{
118	int ch;
119	mntoptparse_t mp;
120
121	*mntflags = 0;
122	while ((ch = getopt(argc, argv, "o:")) != -1)
123		switch (ch) {
124		case 'o':
125			mp = getmntopts(optarg, mopts, mntflags, 0);
126			if (mp == NULL)
127				err(1, "getmntopts");
128			freemntopts(mp);
129			break;
130		case '?':
131		default:
132			usage();
133		}
134	argc -= optind;
135	argv += optind;
136
137	if (argc != 2)
138		usage();
139
140	/* getargs is a NULL op and kernel would return EINVAL */
141	if (*mntflags & MNT_GETARGS)
142		exit(0);
143
144	strlcpy(canon_dev, argv[0], MAXPATHLEN);
145	if (realpath(argv[1], canon_dir) == NULL)    /* Check mounton path */
146		err(1, "realpath %s", argv[1]);
147	if (strncmp(argv[1], canon_dir, MAXPATHLEN)) {
148		warnx("\"%s\" is a relative path.", argv[1]);
149		warnx("using \"%s\" instead.", canon_dir);
150	}
151}
152
153int
154mount_fdesc(int argc, char *argv[])
155{
156	int mntflags;
157	char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
158
159	mount_fdesc_parseargs(argc, argv, NULL, &mntflags,
160	    canon_dev, canon_dir);
161	if (mount(MOUNT_FDESC, canon_dir, mntflags, NULL, 0) == -1)
162		err(1, "fdesc on %s", canon_dir);
163	exit(0);
164}
165
166static void
167usage(void)
168{
169	(void)fprintf(stderr,
170		"usage: mount_fdesc [-o options] fdesc mount_point\n");
171	exit(1);
172}
173