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  * @(#) Copyright (c) 1993, 1994 The Regents of the University of California.  All rights reserved.
34  * @(#)mount_lfs.c	8.3 (Berkeley) 3/27/94
35  * $FreeBSD: src/sbin/mount_ext2fs/mount_ext2fs.c,v 1.11 1999/10/09 11:54:09 phk Exp $
36  */
37 
38 #include <sys/param.h>
39 #include <sys/mount.h>
40 
41 #include <err.h>
42 #include <mntopts.h>
43 #include <stdio.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <sysexits.h>
47 #include <unistd.h>
48 
49 #include <vfs/ufs/ufsmount.h>
50 
51 struct mntopt mopts[] = {
52 	MOPT_STDOPTS,
53 	MOPT_FORCE,
54 	MOPT_SYNC,
55 	MOPT_UPDATE,
56 	MOPT_NULL
57 };
58 
59 static void	usage(void) __dead2;
60 
61 int
62 main(int argc, char **argv)
63 {
64 	struct ufs_args args;
65 	int ch, mntflags;
66 	char *fs_name, mntpath[MAXPATHLEN];
67 	struct vfsconf vfc;
68 	int error;
69 
70 	mntflags = 0;
71 	while ((ch = getopt(argc, argv, "o:")) != -1)
72 		switch (ch) {
73 		case 'o':
74 			getmntopts(optarg, mopts, &mntflags, 0);
75 			break;
76 		case '?':
77 		default:
78 			usage();
79 		}
80 	argc -= optind;
81 	argv += optind;
82 
83 	if (argc != 2)
84 		usage();
85 
86         args.fspec = argv[0];	/* the name of the device file */
87 	fs_name = argv[1];	/* the mount point */
88 
89 	/*
90 	 * Resolve the mountpoint with realpath(3) and remove unnecessary
91 	 * slashes from the devicename if there are any.
92 	 */
93 	checkpath(fs_name, mntpath);
94 	rmslashes(args.fspec, args.fspec);
95 
96 #define DEFAULT_ROOTUID	-2
97 	args.export.ex_root = DEFAULT_ROOTUID;
98 	if (mntflags & MNT_RDONLY)
99 		args.export.ex_flags = MNT_EXRDONLY;
100 	else
101 		args.export.ex_flags = 0;
102 
103 	error = getvfsbyname("ext2fs", &vfc);
104 	if (error && vfsisloadable("ext2fs")) {
105 		if (vfsload("ext2fs")) {
106 			err(EX_OSERR, "vfsload(ext2fs)");
107 		}
108 		endvfsent();	/* flush cache */
109 		error = getvfsbyname("ext2fs", &vfc);
110 	}
111 	if (error)
112 		errx(EX_OSERR, "ext2fs filesystem is not available");
113 
114 	if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
115 		err(EX_OSERR, "%s", args.fspec);
116 	exit(0);
117 }
118 
119 void
120 usage(void)
121 {
122 	fprintf(stderr,
123 	    "usage: mount_ext2fs [-o options] special node\n");
124 	exit(EX_USAGE);
125 }
126