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 #include <sys/param.h>
36 #include <sys/mount.h>
37
38 #include <err.h>
39 #include <getopt.h>
40 #include <libgen.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <unistd.h>
45
46 #include "extern.h"
47 #include "mntopts.h"
48
49 static struct mntopt mopts[] = {
50 MOPT_STDOPTS,
51 MOPT_END
52 };
53
54 static void
usage(void)55 usage(void)
56 {
57 (void)fprintf(stderr,
58 "usage: mount [-t fstype] [-o options] target_fs mount_point\n");
59 exit(1);
60 }
61
62 int
mount_fs(const char * vfstype,int argc,char * argv[])63 mount_fs(const char *vfstype, int argc, char *argv[])
64 {
65 struct iovec *iov;
66 int iovlen;
67 int mntflags = 0;
68 int ch;
69 char *dev, *dir, mntpath[MAXPATHLEN];
70 char fstype[32];
71 char errmsg[255];
72 char *p, *val;
73
74 strlcpy(fstype, vfstype, sizeof(fstype));
75 memset(errmsg, 0, sizeof(errmsg));
76
77 getmnt_silent = 1;
78 iov = NULL;
79 iovlen = 0;
80
81 optind = optreset = 1; /* Reset for parse of new argv. */
82 while ((ch = getopt(argc, argv, "o:")) != -1) {
83 switch(ch) {
84 case 'o':
85 getmntopts(optarg, mopts, &mntflags, 0);
86 p = strchr(optarg, '=');
87 val = NULL;
88 if (p != NULL) {
89 *p = '\0';
90 val = p + 1;
91 }
92 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1);
93 break;
94 case '?':
95 default:
96 usage();
97 }
98 }
99
100 argc -= optind;
101 argv += optind;
102 if (argc != 2)
103 usage();
104
105 dev = argv[0];
106 dir = argv[1];
107
108 if (checkpath(dir, mntpath) != 0) {
109 warn("%s", mntpath);
110 return (1);
111 }
112 (void)rmslashes(dev, dev);
113
114 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
115 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
116 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
117 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
118
119 if (nmount(iov, iovlen, mntflags) == -1) {
120 if (*errmsg != '\0')
121 warn("%s: %s", dev, errmsg);
122 else
123 warn("%s", dev);
124 return (1);
125 }
126 return (0);
127 }
128