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 * 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 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 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 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