1/* $NetBSD: mount_nilfs.c,v 1.12 2008/08/05 20:57:45 pooka 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 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *          This product includes software developed for the
18 *          NetBSD Project.  See http://www.NetBSD.org/ for
19 *          information about NetBSD.
20 * 4. The name of the author may not be used to endorse or promote products
21 *    derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 */
35
36
37#include <sys/cdefs.h>
38#ifndef lint
39__RCSID("$NetBSD: mount_nilfs.c,v 1.12 2008/08/05 20:57:45 pooka Exp $");
40#endif /* not lint */
41
42
43#include <sys/param.h>
44#include <sys/mount.h>
45#include <sys/stat.h>
46
47#include <assert.h>
48#include <err.h>
49#include <errno.h>
50#include <grp.h>
51#include <pwd.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55#include <time.h>
56#include <unistd.h>
57#include <util.h>
58
59
60/* mount specific options */
61#include <fs/nilfs/nilfs_mount.h>
62#include <mntopts.h>
63
64#include "mountprog.h"
65#include "mount_nilfs.h"
66
67/* options to pass on to the `mount' call */
68static const struct mntopt mopts[] = {
69	MOPT_STDOPTS,		/* `normal' options		*/
70	MOPT_ASYNC,		/* default			*/
71	MOPT_NOATIME,		/* dont update access times	*/
72	MOPT_UPDATE,		/* not yet supported		*/
73	MOPT_GETARGS,		/* printing			*/
74	MOPT_NULL,
75};
76
77
78/* prototypes */
79static void	usage(void) __dead;
80
81
82/* code */
83
84static void
85usage(void)
86{
87	(void)fprintf(stderr, "Usage: %s [-o options] [-c cpno] "
88	    "[-t gmtoff] special node\n", getprogname());
89	exit(EXIT_FAILURE);
90}
91
92
93#ifndef MOUNT_NOMAIN
94int
95main(int argc, char **argv)
96{
97
98	setprogname(argv[0]);
99	return mount_nilfs(argc, argv);
100}
101#endif
102
103
104/* main routine */
105void
106mount_nilfs_parseargs(int argc, char **argv,
107	struct nilfs_args *args, int *mntflags,
108	char *canon_dev, char *canon_dir)
109{
110	struct tm *tm;
111	time_t	 now;
112	int	 ch, set_gmtoff;
113	uint32_t sector_size;
114	mntoptparse_t mp;
115
116	/* initialise */
117	(void)memset(args, 0, sizeof(*args));
118
119	set_gmtoff = *mntflags = 0;
120	sector_size = 0;
121
122	while ((ch = getopt(argc, argv, "c:o:t:")) != -1) {
123		switch (ch) {
124		case 'o' :
125			/* process generic mount options */
126			mp = getmntopts(optarg, mopts, mntflags, 0);
127			if (mp == NULL)
128				err(EXIT_FAILURE, "getmntopts");
129			freemntopts(mp);
130			break;
131		case 'c' :
132			args->cpno = a_num(optarg, "checkpoint number");
133			break;
134		case 't' :
135			args->gmtoff = a_num(optarg, "gmtoff");
136			set_gmtoff  = 1;
137			break;
138		default  :
139			usage();
140			/* NOTREACHED */
141		}
142	}
143
144	if (optind + 2 != argc)
145		usage();
146
147	if (!set_gmtoff) {
148		/* use user's time zone as default */
149		(void)time(&now);
150		tm = localtime(&now);
151		args->gmtoff = tm->tm_gmtoff;
152	}
153
154	/* get device and directory specifier */
155	pathadj(argv[optind], canon_dev);
156	pathadj(argv[optind+1], canon_dir);
157
158	args->version = NILFSMNT_VERSION;
159	args->fspec = canon_dev;
160}
161
162int
163mount_nilfs(int argc, char *argv[])
164{
165	struct nilfs_args args;
166	char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
167	int mntflags;
168
169	mount_nilfs_parseargs(argc, argv, &args, &mntflags, canon_dev, canon_dir);
170
171	/* mount it! :) */
172	if (mount(MOUNT_NILFS, canon_dir, mntflags, &args, sizeof args) == -1)
173		err(EXIT_FAILURE, "Cannot mount %s on %s", canon_dev,canon_dir);
174
175	if (mntflags & MNT_GETARGS) {
176		char buf[1024];
177
178		(void)snprintb(buf, sizeof(buf), NILFSMNT_BITS,
179		    (uint64_t)args.nilfsmflags);
180		(void)printf("gmtoffset = %d, cpno = %"PRIu64", flags = %s\n",
181		    args.gmtoff, args.cpno, buf);
182	}
183
184	return EXIT_SUCCESS;
185}
186