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      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 (at) 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