1/*	$NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $	*/
2
3/*-
4 * Copyright (c) 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#ifndef lint
34__COPYRIGHT("@(#) Copyright (c) 1993, 1994\
35 The Regents of the University of California.  All rights reserved.");
36#endif /* not lint */
37
38#ifndef lint
39#if 0
40static char sccsid[] = "@(#)mount_ufs.c	8.4 (Berkeley) 4/26/95";
41#else
42__RCSID("$NetBSD: mount_ext2fs.c,v 1.23 2016/02/21 22:51:29 christos Exp $");
43#endif
44#endif /* not lint */
45
46#include <sys/param.h>
47#include <sys/mount.h>
48#include <ufs/ufs/ufsmount.h>
49
50#include <err.h>
51#include <errno.h>
52#include <stdio.h>
53#include <stdlib.h>
54
55#include <string.h>
56#include <unistd.h>
57
58#include <mntopts.h>
59
60#include "mountprog.h"
61#include "mount_ext2fs.h"
62
63__dead static void	ext2fs_usage(void);
64
65static const struct mntopt mopts[] = {
66	MOPT_STDOPTS,
67	MOPT_ASYNC,
68	MOPT_SYNC,
69	MOPT_UPDATE,
70	MOPT_RELOAD,
71	MOPT_FORCE,
72	MOPT_GETARGS,
73	MOPT_NODEVMTIME,
74	MOPT_NOATIME,
75	MOPT_RELATIME,
76	MOPT_NULL,
77};
78
79#ifndef MOUNT_NOMAIN
80int
81main(int argc, char *argv[])
82{
83
84	setprogname(argv[0]);
85	return mount_ext2fs(argc, argv);
86}
87#endif
88
89void
90mount_ext2fs_parseargs(int argc, char *argv[],
91	struct ufs_args *args, int *mntflags,
92	char *canon_dev, char *canon_dir)
93{
94	int ch;
95	mntoptparse_t mp;
96
97	memset(args, 0, sizeof(*args));
98	*mntflags = 0;
99	optind = optreset = 1;		/* Reset for parse of new argv. */
100	while ((ch = getopt(argc, argv, "o:")) != -1)
101		switch (ch) {
102		case 'o':
103			mp = getmntopts(optarg, mopts, mntflags, 0);
104			if (mp == NULL)
105				err(1, "getmntopts");
106			freemntopts(mp);
107			break;
108		case '?':
109		default:
110			ext2fs_usage();
111		}
112	argc -= optind;
113	argv += optind;
114
115	if (argc != 2)
116		ext2fs_usage();
117
118	pathadj(argv[0], canon_dev);
119	args->fspec = canon_dev;
120
121	pathadj(argv[1], canon_dir);
122}
123
124int
125mount_ext2fs(int argc, char *argv[])
126{
127	struct ufs_args args;		/* XXX ffs_args */
128	char fs_name[MAXPATHLEN], canon_dev[MAXPATHLEN];
129	const char *errcause;
130	int mntflags;
131
132	mount_ext2fs_parseargs(argc, argv, &args, &mntflags,
133	    canon_dev, fs_name);
134
135	if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args, sizeof args) == -1) {
136		switch (errno) {
137		case EMFILE:
138			errcause = "mount table full";
139			break;
140		case EINVAL:
141			if (mntflags & MNT_UPDATE)
142				errcause =
143			    "specified device does not match mounted device";
144			else
145				errcause = "incorrect super block";
146			break;
147		default:
148			errcause = strerror(errno);
149			break;
150		}
151		errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
152	}
153	exit(0);
154}
155
156static void
157ext2fs_usage(void)
158{
159	(void)fprintf(stderr,
160		"usage: %s [-o options] special node\n", getprogname());
161	exit(1);
162}
163