| /*- |
| * Copyright (c) 2002 Marcel Moolenaar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <sys/cdefs.h> |
| __FBSDID("$FreeBSD$"); |
| |
| #include <sys/types.h> |
| |
| #include <err.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include "map.h" |
| #include "gpt.h" |
| |
| static int recoverable; |
| |
| static void |
| usage_destroy(void) |
| { |
| |
| fprintf(stderr, |
| "usage: %s [-r] device ...\n", getprogname()); |
| exit(1); |
| } |
| |
| static void |
| destroy(int fd) |
| { |
| map_t *pri_hdr, *sec_hdr; |
| |
| pri_hdr = map_find(MAP_TYPE_PRI_GPT_HDR); |
| sec_hdr = map_find(MAP_TYPE_SEC_GPT_HDR); |
| |
| if (pri_hdr == NULL && sec_hdr == NULL) { |
| warnx("%s: error: device doesn't contain a GPT", device_name); |
| return; |
| } |
| |
| if (recoverable && sec_hdr == NULL) { |
| warnx("%s: error: recoverability not possible", device_name); |
| return; |
| } |
| |
| if (pri_hdr != NULL) { |
| bzero(pri_hdr->map_data, secsz); |
| gpt_write(fd, pri_hdr); |
| } |
| |
| if (!recoverable && sec_hdr != NULL) { |
| bzero(sec_hdr->map_data, secsz); |
| gpt_write(fd, sec_hdr); |
| } |
| } |
| |
| int |
| cmd_destroy(int argc, char *argv[]) |
| { |
| int ch, fd; |
| |
| while ((ch = getopt(argc, argv, "r")) != -1) { |
| switch(ch) { |
| case 'r': |
| recoverable = 1; |
| break; |
| default: |
| usage_destroy(); |
| } |
| } |
| |
| if (argc == optind) |
| usage_destroy(); |
| |
| while (optind < argc) { |
| fd = gpt_open(argv[optind++]); |
| if (fd == -1) { |
| warn("unable to open device '%s'", device_name); |
| continue; |
| } |
| |
| destroy(fd); |
| |
| gpt_close(fd); |
| } |
| |
| return (0); |
| } |