130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*-
|
|
* 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.
|
|
*/
|
|
|
|
#if HAVE_NBTOOL_CONFIG_H
|
|
#include "nbtool_config.h"
|
|
#endif
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifdef __FBSDID
|
|
__FBSDID("$FreeBSD: src/sbin/gpt/destroy.c,v 1.6 2005/08/31 01:47:19 marcel Exp $");
|
|
#endif
|
|
#ifdef __RCSID
|
|
__RCSID("$NetBSD: destroy.c,v 1.9 2015/12/01 16:32:19 christos Exp $");
|
|
#endif
|
|
|
|
#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"
|
|
#include "gpt_private.h"
|
|
|
|
static int recoverable;
|
|
static int force;
|
|
static int cmd_destroy(gpt_t, int, char *[]);
|
|
|
|
static const char *destroyhelp[] = {
|
|
"[-rf]",
|
|
};
|
|
|
|
struct gpt_cmd c_destroy = {
|
|
"destroy",
|
|
cmd_destroy,
|
|
destroyhelp, __arraycount(destroyhelp),
|
|
0,
|
|
};
|
|
|
|
#define usage() gpt_usage(NULL, &c_destroy)
|
|
|
|
|
|
static int
|
|
destroy(gpt_t gpt)
|
|
{
|
|
map_t pri_hdr, sec_hdr;
|
|
|
|
pri_hdr = map_find(gpt, MAP_TYPE_PRI_GPT_HDR);
|
|
sec_hdr = map_find(gpt, MAP_TYPE_SEC_GPT_HDR);
|
|
|
|
if (pri_hdr == NULL && sec_hdr == NULL) {
|
|
gpt_warnx(gpt, "Device doesn't contain a GPT");
|
|
return -1;
|
|
}
|
|
|
|
if (recoverable && sec_hdr == NULL) {
|
|
gpt_warnx(gpt, "Recoverability not possible");
|
|
return -1;
|
|
}
|
|
|
|
if (pri_hdr != NULL) {
|
|
memset(pri_hdr->map_data, 0, gpt->secsz);
|
|
if (gpt_write(gpt, pri_hdr) == -1) {
|
|
gpt_warnx(gpt, "Error writing primary header");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (!recoverable && sec_hdr != NULL) {
|
|
memset(sec_hdr->map_data, 0, gpt->secsz);
|
|
if (gpt_write(gpt, sec_hdr) == -1) {
|
|
gpt_warnx(gpt, "Error writing backup header");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
cmd_destroy(gpt_t gpt, int argc, char *argv[])
|
|
{
|
|
int ch;
|
|
|
|
while ((ch = getopt(argc, argv, "fr")) != -1) {
|
|
switch(ch) {
|
|
case 'f':
|
|
force = 1;
|
|
break;
|
|
case 'r':
|
|
recoverable = 1;
|
|
break;
|
|
default:
|
|
return usage();
|
|
}
|
|
}
|
|
|
|
if (argc != optind)
|
|
return usage();
|
|
|
|
return destroy(gpt);
|
|
}
|