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/*
* 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);
}
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