xref: /netbsd-src/sbin/dkscan_bsdlabel/dkscan_bsdlabel.c (revision bdc22b2e01993381dcefeff2bc9b56ca75a4235c)
1 /* $NetBSD: dkscan_bsdlabel.c,v 1.4 2017/06/08 22:24:29 chs Exp $ */
2 
3 /*-
4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Martin Husemann <martin@NetBSD.org>.
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  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <stddef.h>
35 #include <string.h>
36 #include <unistd.h>
37 #include <fcntl.h>
38 #include <err.h>
39 #include <util.h>
40 #include <sys/disk.h>
41 
42 #include "dkscan_util.h"
43 
44 struct disk {
45 	const char	*dk_name;	/* disk name */
46 	int		dk_blkshift;	/* shift to convert DEV_BSIZE to blks */
47 };
48 
49 #include "dkwedge_bsdlabel.c"
50 
51 __dead static void usage(void);
52 
53 int
54 main(int argc, char **argv)
55 {
56 	struct disk d;
57 	int ch;
58 	char buf[PATH_MAX];
59 	const char *devpart;
60 
61 	if (argc < 2)
62 		usage();
63 
64 	while ((ch = getopt(argc, argv, "nv")) != -1) {
65 		switch (ch) {
66 		case 'n':
67 			no_action = 1;
68 			break;
69 		case 'v':
70 			verbose++;
71 			break;
72 		default:
73 			usage();
74 		}
75 	}
76 	if (optind >= argc)
77 		usage();
78 
79 	disk_fd = opendisk(argv[optind], O_RDWR, buf, PATH_MAX, 0);
80 	if (disk_fd == -1)
81 		err(1, "%s", argv[optind]);
82 
83 	devpart = strrchr(argv[optind], '/');
84 	if (devpart == NULL)
85 		devpart = argv[optind];
86 
87 	memset(&d, 0, sizeof(d));
88 	d.dk_name  = devpart;
89 	dkwedge_discover_bsdlabel(&d, NULL);
90 
91 	close(disk_fd);
92 	return 0;
93 }
94 
95 void
96 usage(void)
97 {
98 	fprintf(stderr, "usage: %s [-vn] <diskname>\n"
99 	    "  where\n"
100 	    "    -n don't change anything, just print info\n"
101 	    "    -v be more verbose\n"
102 	    "    <diskname> device to scan\n",
103 	    getprogname());
104 	exit(1);
105 }
106