1 /* $NetBSD: mount_nilfs.c,v 1.4 2019/10/16 21:52:22 maya Exp $ */
2
3 /*
4 * Copyright (c) 2008, 2009 Reinoud Zandijk
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 */
28
29
30 #include <sys/cdefs.h>
31 #ifndef lint
32 __RCSID("$NetBSD: mount_nilfs.c,v 1.4 2019/10/16 21:52:22 maya Exp $");
33 #endif /* not lint */
34
35
36 #include <sys/param.h>
37 #include <sys/mount.h>
38 #include <sys/stat.h>
39
40 #include <assert.h>
41 #include <err.h>
42 #include <errno.h>
43 #include <grp.h>
44 #include <pwd.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <time.h>
49 #include <unistd.h>
50 #include <util.h>
51
52
53 /* mount specific options */
54 #include <fs/nilfs/nilfs_mount.h>
55 #include <mntopts.h>
56
57 #include "mountprog.h"
58 #include "mount_nilfs.h"
59
60 /* options to pass on to the `mount' call */
61 static const struct mntopt mopts[] = {
62 MOPT_STDOPTS, /* `normal' options */
63 MOPT_ASYNC, /* default */
64 MOPT_NOATIME, /* dont update access times */
65 MOPT_RELATIME, /* update access times on change*/
66 MOPT_UPDATE, /* not yet supported */
67 MOPT_GETARGS, /* printing */
68 MOPT_NULL,
69 };
70
71
72 /* prototypes */
73 static void usage(void) __dead;
74
75
76 /* code */
77
78 static void
usage(void)79 usage(void)
80 {
81 (void)fprintf(stderr, "Usage: %s [-o options] [-c cpno] "
82 "[-t gmtoff] special node\n", getprogname());
83 exit(EXIT_FAILURE);
84 }
85
86
87 #ifndef MOUNT_NOMAIN
88 int
main(int argc,char ** argv)89 main(int argc, char **argv)
90 {
91
92 setprogname(argv[0]);
93 return mount_nilfs(argc, argv);
94 }
95 #endif
96
97
98 /* main routine */
99 void
mount_nilfs_parseargs(int argc,char ** argv,struct nilfs_args * args,int * mntflags,char * canon_dev,char * canon_dir)100 mount_nilfs_parseargs(int argc, char **argv,
101 struct nilfs_args *args, int *mntflags,
102 char *canon_dev, char *canon_dir)
103 {
104 struct tm *tm;
105 time_t now;
106 int ch, set_gmtoff;
107 mntoptparse_t mp;
108
109 /* initialise */
110 (void)memset(args, 0, sizeof(*args));
111
112 set_gmtoff = *mntflags = 0;
113
114 while ((ch = getopt(argc, argv, "c:o:t:")) != -1) {
115 switch (ch) {
116 case 'o' :
117 /* process generic mount options */
118 mp = getmntopts(optarg, mopts, mntflags, 0);
119 if (mp == NULL)
120 err(EXIT_FAILURE, "getmntopts");
121 freemntopts(mp);
122 break;
123 case 'c' :
124 args->cpno = a_num(optarg, "checkpoint number");
125 break;
126 case 't' :
127 args->gmtoff = a_num(optarg, "gmtoff");
128 set_gmtoff = 1;
129 break;
130 default :
131 usage();
132 /* NOTREACHED */
133 }
134 }
135
136 if (optind + 2 != argc)
137 usage();
138
139 if (!set_gmtoff) {
140 /* use user's time zone as default */
141 (void)time(&now);
142 tm = localtime(&now);
143 args->gmtoff = tm->tm_gmtoff;
144 }
145
146 /* get device and directory specifier */
147 pathadj(argv[optind], canon_dev);
148 pathadj(argv[optind+1], canon_dir);
149
150 args->version = NILFSMNT_VERSION;
151 args->fspec = canon_dev;
152 }
153
154 int
mount_nilfs(int argc,char * argv[])155 mount_nilfs(int argc, char *argv[])
156 {
157 struct nilfs_args args;
158 char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
159 int mntflags;
160
161 mount_nilfs_parseargs(argc, argv, &args, &mntflags, canon_dev, canon_dir);
162
163 /* mount it! :) */
164 if (mount(MOUNT_NILFS, canon_dir, mntflags, &args, sizeof args) == -1)
165 err(EXIT_FAILURE, "Cannot mount %s on %s", canon_dev,canon_dir);
166
167 if (mntflags & MNT_GETARGS) {
168 char buf[1024];
169
170 (void)snprintb(buf, sizeof(buf), NILFSMNT_BITS,
171 (uint64_t)args.nilfsmflags);
172 (void)printf("gmtoffset = %d, cpno = %"PRIu64", flags = %s\n",
173 args.gmtoff, args.cpno, buf);
174 }
175
176 return EXIT_SUCCESS;
177 }
178