1 /* $NetBSD: dkscan_bsdlabel.c,v 1.5 2020/04/11 17:21:16 jdolecek 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 #include <sys/buf.h>
42
43 #include "dkscan_util.h"
44
45 struct disk {
46 const char *dk_name; /* disk name */
47 int dk_blkshift; /* shift to convert DEV_BSIZE to blks */
48 };
49
50 static struct buf *
geteblk(int size)51 geteblk(int size)
52 {
53 struct buf *bp = malloc(sizeof(*bp) + size);
54
55 bp->b_data = (void *)&bp[1];
56
57 return bp;
58 }
59
60 static void
brelse(struct buf * bp,int set)61 brelse(struct buf *bp, int set)
62 {
63 free(bp);
64 }
65
66 #include "dkwedge_bsdlabel.c"
67
68 __dead static void usage(void);
69
70 int
main(int argc,char ** argv)71 main(int argc, char **argv)
72 {
73 struct disk d;
74 int ch;
75 char buf[PATH_MAX];
76 const char *devpart;
77
78 if (argc < 2)
79 usage();
80
81 while ((ch = getopt(argc, argv, "nv")) != -1) {
82 switch (ch) {
83 case 'n':
84 no_action = 1;
85 break;
86 case 'v':
87 verbose++;
88 break;
89 default:
90 usage();
91 }
92 }
93 if (optind >= argc)
94 usage();
95
96 disk_fd = opendisk(argv[optind], O_RDWR, buf, PATH_MAX, 0);
97 if (disk_fd == -1)
98 err(1, "%s", argv[optind]);
99
100 devpart = strrchr(argv[optind], '/');
101 if (devpart == NULL)
102 devpart = argv[optind];
103
104 memset(&d, 0, sizeof(d));
105 d.dk_name = devpart;
106 dkwedge_discover_bsdlabel(&d, NULL);
107
108 close(disk_fd);
109 return 0;
110 }
111
112 void
usage(void)113 usage(void)
114 {
115 fprintf(stderr, "usage: %s [-vn] <diskname>\n"
116 " where\n"
117 " -n don't change anything, just print info\n"
118 " -v be more verbose\n"
119 " <diskname> device to scan\n",
120 getprogname());
121 exit(1);
122 }
123