mount_fs.c revision 225736 
1279377Simp/*
2279377Simp * Copyright (c) 1992, 1993, 1994
3279377Simp *	The Regents of the University of California.  All rights reserved.
4279377Simp *
5279377Simp * This code is derived from software donated to Berkeley by
6279377Simp * Jan-Simon Pendry.
7279377Simp *
8279377Simp * Redistribution and use in source and binary forms, with or without
9279377Simp * modification, are permitted provided that the following conditions
10279377Simp * are met:
11279377Simp * 1. Redistributions of source code must retain the above copyright
12279377Simp *    notice, this list of conditions and the following disclaimer.
13279377Simp * 2. Redistributions in binary form must reproduce the above copyright
14279377Simp *    notice, this list of conditions and the following disclaimer in the
15279377Simp *    documentation and/or other materials provided with the distribution.
16279377Simp * 4. Neither the name of the University nor the names of its contributors
17279377Simp *    may be used to endorse or promote products derived from this software
18279377Simp *    without specific prior written permission.
19279377Simp *
20279377Simp * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21279377Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22279377Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23279377Simp * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24279377Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25279377Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26279377Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27279377Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28279377Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29279377Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30279377Simp * SUCH DAMAGE.
31279377Simp */
32279377Simp
33279377Simp#ifndef lint
34279377Simpstatic const char copyright[] =
35279377Simp"@(#) Copyright (c) 1992, 1993, 1994\n\
36279377Simp	The Regents of the University of California.  All rights reserved.\n";
37279377Simp#endif /* not lint */
38279377Simp
39279377Simp#ifndef lint
40279377Simp#if 0
41279377Simpstatic char sccsid[] = "@(#)mount_fs.c	8.6 (Berkeley) 4/26/95";
42279377Simp#endif
43279377Simpstatic const char rcsid[] =
44279377Simp	"$FreeBSD: stable/9/sbin/mount/mount_fs.c 216399 2010-12-12 21:26:12Z joel $";
45279377Simp#endif /* not lint */
46279377Simp
47279377Simp#include <sys/param.h>
48279377Simp#include <sys/mount.h>
49279377Simp
50#include <err.h>
51#include <getopt.h>
52#include <libgen.h>
53#include <stdio.h>
54#include <stdlib.h>
55#include <string.h>
56#include <unistd.h>
57
58#include "extern.h"
59#include "mntopts.h"
60
61struct mntopt mopts[] = {
62	MOPT_STDOPTS,
63	MOPT_END
64};
65
66static void
67usage(void)
68{
69	(void)fprintf(stderr,
70		"usage: mount [-t fstype] [-o options] target_fs mount_point\n");
71	exit(1);
72}
73
74int
75mount_fs(const char *vfstype, int argc, char *argv[])
76{
77	struct iovec *iov;
78	int iovlen;
79	int mntflags = 0;
80	int ch;
81	char *dev, *dir, mntpath[MAXPATHLEN];
82	char fstype[32];
83	char errmsg[255];
84	char *p, *val;
85	int ret;
86
87	strlcpy(fstype, vfstype, sizeof(fstype));
88	memset(errmsg, 0, sizeof(errmsg));
89
90	getmnt_silent = 1;
91	iov = NULL;
92	iovlen = 0;
93
94	optind = optreset = 1;		/* Reset for parse of new argv. */
95	while ((ch = getopt(argc, argv, "o:")) != -1) {
96		switch(ch) {
97		case 'o':
98			getmntopts(optarg, mopts, &mntflags, 0);
99			p = strchr(optarg, '=');
100			val = NULL;
101			if (p != NULL) {
102				*p = '\0';
103				val = p + 1;
104			}
105			build_iovec(&iov, &iovlen, optarg, val, (size_t)-1);
106			break;
107		case '?':
108		default:
109			usage();
110		}
111	}
112
113	argc -= optind;
114	argv += optind;
115	if (argc != 2)
116		usage();
117
118	dev = argv[0];
119	dir = argv[1];
120
121	(void)checkpath(dir, mntpath);
122	(void)rmslashes(dev, dev);
123
124	build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
125	build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
126	build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
127	build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
128
129	ret = nmount(iov, iovlen, mntflags);
130	if (ret < 0)
131		err(1, "%s %s", dev, errmsg);
132
133	return (ret);
134}
135