1/*	$NetBSD: mount_puffs.c,v 1.3 2010/05/21 11:59:38 pooka Exp $	*/
2
3/*
4 * Copyright (c) 2010 Antti Kantee.  All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28/*
29 * This is to support -o getargs without having to replicate
30 * it in every file server.
31 */
32
33#include <sys/cdefs.h>
34#ifndef lint
35__RCSID("$NetBSD: mount_puffs.c,v 1.3 2010/05/21 11:59:38 pooka Exp $");
36#endif /* !lint */
37
38#include <sys/param.h>
39#include <sys/mount.h>
40
41#include <fs/puffs/puffs_msgif.h>
42
43#include <err.h>
44#include <mntopts.h>
45#include <stdio.h>
46#include <stdlib.h>
47#include <unistd.h>
48
49const struct mntopt getargmopt[] = {
50	MOPT_GETARGS,
51	MOPT_NULL,
52};
53
54__dead static void
55usage(void)
56{
57
58	fprintf(stderr, "usage: %s -o getargs spec dir\n", getprogname());
59	exit(1);
60}
61
62int
63main(int argc, char *argv[])
64{
65	const char *vtypes[] = { VNODE_TYPES };
66	struct puffs_kargs kargs;
67	mntoptparse_t mp;
68	int mntflags, f;
69	int ch;
70
71	if (argc < 3)
72		usage();
73
74	mntflags = 0;
75	while ((ch = getopt(argc, argv, "o:")) != -1) {
76		switch (ch) {
77		case 'o':
78			mp = getmntopts(optarg, getargmopt, &mntflags, &f);
79			if (mp == NULL)
80				err(1, "getmntopts");
81			freemntopts(mp);
82			break;
83		default:
84			usage();
85		}
86	}
87	argc -= optind;
88	argv += optind;
89
90	if (argc != 2)
91		usage();
92
93	if (mntflags != MNT_GETARGS)
94		usage();
95
96	if (mount(MOUNT_PUFFS, argv[1], mntflags, &kargs, sizeof(kargs)) == -1)
97		err(1, "mount");
98
99	printf("version=%d, ", kargs.pa_vers);
100	printf("flags=0x%x, ", kargs.pa_flags);
101
102	printf("root cookie=%p, ", kargs.pa_root_cookie);
103	printf("root type=%s", vtypes[kargs.pa_root_vtype]);
104
105	if (kargs.pa_root_vtype != VDIR)
106		printf(", root size=%llu",
107		    (unsigned long long)kargs.pa_root_vsize);
108	if (kargs.pa_root_vtype == VCHR || kargs.pa_root_vtype == VBLK)
109		printf(", root rdev=0x%" PRIx64, (uint64_t)kargs.pa_root_rdev);
110	printf("\n");
111
112	return 0;
113}
114