NetBSD/sbin/gpt/unset.c

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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.
*/
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#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#ifdef __FBSDID
__FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $");
#endif
#ifdef __RCSID
__RCSID("$NetBSD: unset.c,v 1.15 2019/03/26 14:55:02 martin 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 cmd_unset(gpt_t, int, char *[]);
static const char *unsethelp[] = {
"-a attribute -i index",
"-a attribute -b startsec",
"-l",
};
struct gpt_cmd c_unset = {
"unset",
cmd_unset,
unsethelp, __arraycount(unsethelp),
GPT_OPTDEV,
};
#define usage() gpt_usage(NULL, &c_unset)
static int
cmd_unset(gpt_t gpt, int argc, char *argv[])
{
int ch;
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unsigned int entry = 0;
uint64_t attributes = 0;
off_t start = 0;
map_t m;
while ((ch = getopt(argc, argv, "a:b:i:l")) != -1) {
switch(ch) {
case 'a':
if (gpt == NULL || gpt_attr_get(gpt, &attributes) == -1)
return usage();
break;
case 'b':
if (gpt == NULL || gpt_human_get(gpt, &start) == -1)
return usage();
break;
case 'i':
if (gpt == NULL || gpt_uint_get(gpt, &entry) == -1)
return usage();
break;
case 'l':
gpt_attr_help("\t");
return 0;
default:
return usage();
}
}
if (start > 0) {
for (m = map_first(gpt); m != NULL; m = m->map_next) {
if (m->map_type != MAP_TYPE_GPT_PART ||
m->map_index < 1)
continue;
if (start != m->map_start)
continue;
entry = m->map_index;
break;
}
}
if (gpt == NULL || argc != optind)
return usage();
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return gpt_attr_update(gpt, entry, 0, attributes);
}