1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
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 donated 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 #ifndef lint
36 static const char copyright[] =
37 "@(#) Copyright (c) 1992, 1993, 1994\n\
38 The Regents of the University of California. All rights reserved.\n";
39 #endif /* not lint */
40
41 #ifndef lint
42 #if 0
43 static char sccsid[] = "@(#)mount_fs.c 8.6 (Berkeley) 4/26/95";
44 #endif
45 static const char rcsid[] =
46 "$FreeBSD: stable/12/sbin/mount/mount_fs.c 326025 2017-11-20 19:49:47Z pfg $";
47 #endif /* not lint */
48
49 #include <sys/param.h>
50 #include <sys/mount.h>
51
52 #include <err.h>
53 #include <getopt.h>
54 #include <libgen.h>
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <string.h>
58 #include <unistd.h>
59
60 #include "extern.h"
61 #include "mntopts.h"
62
63 static struct mntopt mopts[] = {
64 MOPT_STDOPTS,
65 MOPT_END
66 };
67
68 static void
usage(void)69 usage(void)
70 {
71 (void)fprintf(stderr,
72 "usage: mount [-t fstype] [-o options] target_fs mount_point\n");
73 exit(1);
74 }
75
76 int
mount_fs(const char * vfstype,int argc,char * argv[])77 mount_fs(const char *vfstype, int argc, char *argv[])
78 {
79 struct iovec *iov;
80 int iovlen;
81 int mntflags = 0;
82 int ch;
83 char *dev, *dir, mntpath[MAXPATHLEN];
84 char fstype[32];
85 char errmsg[255];
86 char *p, *val;
87
88 strlcpy(fstype, vfstype, sizeof(fstype));
89 memset(errmsg, 0, sizeof(errmsg));
90
91 getmnt_silent = 1;
92 iov = NULL;
93 iovlen = 0;
94
95 optind = optreset = 1; /* Reset for parse of new argv. */
96 while ((ch = getopt(argc, argv, "o:")) != -1) {
97 switch(ch) {
98 case 'o':
99 getmntopts(optarg, mopts, &mntflags, 0);
100 p = strchr(optarg, '=');
101 val = NULL;
102 if (p != NULL) {
103 *p = '\0';
104 val = p + 1;
105 }
106 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1);
107 break;
108 case '?':
109 default:
110 usage();
111 }
112 }
113
114 argc -= optind;
115 argv += optind;
116 if (argc != 2)
117 usage();
118
119 dev = argv[0];
120 dir = argv[1];
121
122 if (checkpath(dir, mntpath) != 0) {
123 warn("%s", mntpath);
124 return (1);
125 }
126 (void)rmslashes(dev, dev);
127
128 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
129 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
130 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
131 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
132
133 if (nmount(iov, iovlen, mntflags) == -1) {
134 if (*errmsg != '\0')
135 warn("%s: %s", dev, errmsg);
136 else
137 warn("%s", dev);
138 return (1);
139 }
140 return (0);
141 }
142