1/*-
2 * Copyright (c) 2002 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#if HAVE_NBTOOL_CONFIG_H
28#include "nbtool_config.h"
29#endif
30
31#include <sys/cdefs.h>
32#ifdef __FBSDID
33__FBSDID("$FreeBSD: src/sbin/gpt/add.c,v 1.14 2006/06/22 22:05:28 marcel Exp $");
34#endif
35#ifdef __RCSID
36__RCSID("$NetBSD: unset.c,v 1.15 2019/03/26 14:55:02 martin Exp $");
37#endif
38
39#include <sys/types.h>
40
41#include <err.h>
42#include <stddef.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <unistd.h>
47
48#include "map.h"
49#include "gpt.h"
50#include "gpt_private.h"
51
52static int cmd_unset(gpt_t, int, char *[]);
53
54static const char *unsethelp[] = {
55	"-a attribute -i index",
56	"-a attribute -b startsec",
57	"-l",
58};
59
60struct gpt_cmd c_unset = {
61	"unset",
62	cmd_unset,
63	unsethelp, __arraycount(unsethelp),
64	GPT_OPTDEV,
65};
66
67#define usage() gpt_usage(NULL, &c_unset)
68
69static int
70cmd_unset(gpt_t gpt, int argc, char *argv[])
71{
72	int ch;
73	unsigned int entry = 0;
74	uint64_t attributes = 0;
75	off_t start = 0;
76	map_t m;
77
78	while ((ch = getopt(argc, argv, "a:b:i:l")) != -1) {
79		switch(ch) {
80		case 'a':
81			if (gpt == NULL || gpt_attr_get(gpt, &attributes) == -1)
82				return usage();
83			break;
84		case 'b':
85			if (gpt == NULL || gpt_human_get(gpt, &start) == -1)
86				return usage();
87			break;
88		case 'i':
89			if (gpt == NULL || gpt_uint_get(gpt, &entry) == -1)
90				return usage();
91			break;
92		case 'l':
93			gpt_attr_help("\t");
94			return 0;
95		default:
96			return usage();
97		}
98	}
99
100	if (start > 0) {
101		for (m = map_first(gpt); m != NULL; m = m->map_next) {
102			if (m->map_type != MAP_TYPE_GPT_PART ||
103			    m->map_index < 1)
104				continue;
105			if (start != m->map_start)
106				continue;
107			entry = m->map_index;
108			break;
109		}
110	}
111
112	if (gpt == NULL || argc != optind)
113		return usage();
114
115	return gpt_attr_update(gpt, entry, 0, attributes);
116}
117