1 /*        $NetBSD: mount_efs.c,v 1.6 2024/11/03 10:43:27 rillig Exp $ */
2 
3 /*
4  * Copyright (c) 2006 Stephen M. Rumble <rumble@ephemeral.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/param.h>
20 #include <sys/mount.h>
21 #include <fs/efs/efs.h>
22 #include <fs/efs/efs_sb.h>
23 #include <fs/efs/efs_mount.h>
24 
25 #include <err.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 
29 #include <string.h>
30 #include <unistd.h>
31 
32 #include <mntopts.h>
33 
34 #include "mountprog.h"
35 #include "mount_efs.h"
36 
37 static const struct mntopt mopts[] = {
38           MOPT_STDOPTS,
39           MOPT_GETARGS,
40           MOPT_FORCE,
41           MOPT_NULL
42 };
43 
44 __dead static void  usage(void);
45 
46 static void
usage(void)47 usage(void)
48 {
49 
50           fprintf(stderr, "usage: %s [-o options] special node\n", getprogname());
51           exit(1);
52 }
53 
54 void
mount_efs_parseargs(int argc,char ** argv,struct efs_args * args,int * mntflags,char * canon_dev,char * canon_dir)55 mount_efs_parseargs(int argc, char **argv,
56           struct efs_args *args, int *mntflags,
57           char *canon_dev, char *canon_dir)
58 {
59           int ch;
60           mntoptparse_t mp;
61 
62           memset(args, 0, sizeof(*args));
63           *mntflags = 0;
64 
65           while ((ch = getopt(argc, argv, "o:")) != -1) {
66                     switch (ch) {
67                     case 'o':
68                               mp = getmntopts(optarg, mopts, mntflags, NULL);
69                               if (mp == NULL)
70                                         err(1, "getmntopts");
71                               freemntopts(mp);
72                               break;
73 
74                     default:
75                               usage();
76                     }
77           }
78           argc -= optind;
79           argv += optind;
80 
81           if (argc != 2)
82                     usage();
83 
84           pathadj(argv[0], canon_dev);
85           pathadj(argv[1], canon_dir);
86 
87           args->fspec = canon_dev;
88           args->version = EFS_MNT_VERSION;
89 }
90 
91 int
mount_efs(int argc,char ** argv)92 mount_efs(int argc, char **argv)
93 {
94           char special[MAXPATHLEN], node[MAXPATHLEN];
95           struct efs_args args;
96           int mntflags;
97 
98           mount_efs_parseargs(argc, argv, &args, &mntflags, special, node);
99 
100           if (mount(MOUNT_EFS, node, mntflags, &args, sizeof args) == -1)
101                     err(EXIT_FAILURE, "%s on %s", special, node);
102 
103           return (0);
104 }
105 
106 #ifndef MOUNT_NOMAIN
107 int
main(int argc,char ** argv)108 main(int argc, char **argv)
109 {
110 
111           setprogname(argv[0]);
112           return (mount_efs(argc, argv));
113 }
114 #endif
115