mount_ext2fs.c revision 50476 
1/*-
2 * Copyright (c) 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. 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
34#ifndef lint
35static char copyright[] =
36"@(#) Copyright (c) 1993, 1994\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41/*
42static char sccsid[] = "@(#)mount_lfs.c	8.3 (Berkeley) 3/27/94";
43*/
44static const char rcsid[] =
45  "$FreeBSD: head/sbin/mount_ext2fs/mount_ext2fs.c 50476 1999-08-28 00:22:10Z peter $";
46#endif /* not lint */
47
48#include <sys/param.h>
49#include <sys/mount.h>
50
51#include <err.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55#include <sysexits.h>
56#include <unistd.h>
57
58#include <ufs/ufs/ufsmount.h>
59
60#include "mntopts.h"
61
62struct mntopt mopts[] = {
63	MOPT_STDOPTS,
64	MOPT_FORCE,
65	MOPT_SYNC,
66	MOPT_UPDATE,
67	{ NULL }
68};
69
70static void	usage __P((void)) __dead2;
71
72int
73main(argc, argv)
74	int argc;
75	char *argv[];
76{
77	struct ufs_args args;
78	int ch, mntflags;
79	char *fs_name, *options;
80	struct vfsconf vfc;
81	int error;
82
83	options = NULL;
84	mntflags = 0;
85	while ((ch = getopt(argc, argv, "o:")) != -1)
86		switch (ch) {
87		case 'o':
88			getmntopts(optarg, mopts, &mntflags, 0);
89			break;
90		case '?':
91		default:
92			usage();
93		}
94	argc -= optind;
95	argv += optind;
96
97	if (argc != 2)
98		usage();
99
100        args.fspec = argv[0];	/* the name of the device file */
101	fs_name = argv[1];	/* the mount point */
102
103#define DEFAULT_ROOTUID	-2
104	args.export.ex_root = DEFAULT_ROOTUID;
105	if (mntflags & MNT_RDONLY)
106		args.export.ex_flags = MNT_EXRDONLY;
107	else
108		args.export.ex_flags = 0;
109
110	error = getvfsbyname("ext2fs", &vfc);
111	if (error && vfsisloadable("ext2fs")) {
112		if (vfsload("ext2fs")) {
113			err(EX_OSERR, "vfsload(ext2fs)");
114		}
115		endvfsent();	/* flush cache */
116		error = getvfsbyname("ext2fs", &vfc);
117	}
118	if (error)
119		errx(EX_OSERR, "ext2fs filesystem is not available");
120
121	if (mount(vfc.vfc_name, fs_name, mntflags, &args) < 0)
122		err(EX_OSERR, "%s", args.fspec);
123	exit(0);
124}
125
126void
127usage()
128{
129	(void)fprintf(stderr,
130		"usage: mount_ext2fs [-o options] special node\n");
131	exit(EX_USAGE);
132}
133