Annotation of src/sbin/gpt/remove.c, Revision 1.18
1.1 christos 1: /*-
2: * Copyright (c) 2004 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:
1.14 christos 27: #if HAVE_NBTOOL_CONFIG_H
28: #include "nbtool_config.h"
29: #endif
30:
1.1 christos 31: #include <sys/cdefs.h>
1.2 christos 32: #ifdef __FBSDID
1.1 christos 33: __FBSDID("$FreeBSD: src/sbin/gpt/remove.c,v 1.10 2006/10/04 18:20:25 marcel Exp $");
1.2 christos 34: #endif
35: #ifdef __RCSID
1.18 ! christos 36: __RCSID("$NetBSD: remove.c,v 1.17 2015/11/29 00:14:46 christos Exp $");
1.2 christos 37: #endif
1.1 christos 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"
1.18 ! christos 50: #include "gpt_private.h"
1.1 christos 51:
52: static int all;
1.16 christos 53: static gpt_uuid_t type;
1.1 christos 54: static off_t block, size;
55: static unsigned int entry;
1.13 jnemeth 56: static uint8_t *label;
1.1 christos 57:
1.18 ! christos 58: const char removemsg1[] = "remove -a";
1.13 jnemeth 59: const char removemsg2[] = "remove [-b blocknr] [-i index] [-L label] "
1.18 ! christos 60: "[-s sectors] [-t type]";
1.4 riz 61:
1.18 ! christos 62: static int
1.1 christos 63: usage_remove(void)
64: {
65:
66: fprintf(stderr,
1.4 riz 67: "usage: %s %s\n"
68: " %s %s\n",
69: getprogname(), removemsg1, getprogname(), removemsg2);
1.18 ! christos 70: return -1;
1.1 christos 71: }
72:
1.18 ! christos 73: static int
! 74: rem(gpt_t gpt)
1.1 christos 75: {
1.18 ! christos 76: map_t m;
1.1 christos 77: struct gpt_ent *ent;
78: unsigned int i;
79:
1.18 ! christos 80: if (gpt_hdr(gpt) == NULL)
! 81: return -1;
1.1 christos 82:
83: /* Remove all matching entries in the map. */
1.18 ! christos 84: for (m = map_first(gpt); m != NULL; m = m->map_next) {
1.1 christos 85: if (m->map_type != MAP_TYPE_GPT_PART || m->map_index < 1)
86: continue;
87: if (entry > 0 && entry != m->map_index)
88: continue;
89: if (block > 0 && block != m->map_start)
90: continue;
91: if (size > 0 && size != m->map_size)
92: continue;
93:
94: i = m->map_index - 1;
95:
1.18 ! christos 96: ent = gpt_ent_primary(gpt, i);
1.13 jnemeth 97:
98: if (label != NULL)
99: if (strcmp((char *)label,
100: (char *)utf16_to_utf8(ent->ent_name)) != 0)
101: continue;
102:
1.16 christos 103: if (!gpt_uuid_is_nil(type) &&
104: !gpt_uuid_equal(type, ent->ent_type))
1.1 christos 105: continue;
106:
107: /* Remove the primary entry by clearing the partition type. */
1.16 christos 108: gpt_uuid_copy(ent->ent_type, gpt_uuid_nil);
1.1 christos 109:
1.18 ! christos 110: if (gpt_write_primary(gpt) == -1)
! 111: return -1;
! 112:
! 113: ent = gpt_ent_backup(gpt, i);
1.1 christos 114:
1.7 jakllsch 115: /* Remove the secondary entry. */
1.16 christos 116: gpt_uuid_copy(ent->ent_type, gpt_uuid_nil);
1.1 christos 117:
1.18 ! christos 118: if (gpt_write_backup(gpt) == -1)
! 119: return -1;
! 120: gpt_msg(gpt, "partition %d removed", m->map_index);
1.1 christos 121: }
1.18 ! christos 122: return 0;
1.1 christos 123: }
124:
125: int
1.18 ! christos 126: cmd_remove(gpt_t gpt, int argc, char *argv[])
1.1 christos 127: {
128: char *p;
1.18 ! christos 129: int ch;
1.10 jnemeth 130: int64_t human_num;
1.1 christos 131:
132: /* Get the remove options */
1.13 jnemeth 133: while ((ch = getopt(argc, argv, "ab:i:L:s:t:")) != -1) {
1.1 christos 134: switch(ch) {
135: case 'a':
136: if (all > 0)
1.18 ! christos 137: return usage_remove();
1.1 christos 138: all = 1;
139: break;
140: case 'b':
141: if (block > 0)
1.18 ! christos 142: return usage_remove();
1.10 jnemeth 143: if (dehumanize_number(optarg, &human_num) < 0)
1.18 ! christos 144: return usage_remove();
1.10 jnemeth 145: block = human_num;
1.12 jnemeth 146: if (block < 1)
1.18 ! christos 147: return usage_remove();
1.1 christos 148: break;
149: case 'i':
150: if (entry > 0)
1.18 ! christos 151: return usage_remove();
1.3 riz 152: entry = strtoul(optarg, &p, 10);
1.1 christos 153: if (*p != 0 || entry < 1)
1.18 ! christos 154: return usage_remove();
1.1 christos 155: break;
1.13 jnemeth 156: case 'L':
157: if (label != NULL)
1.18 ! christos 158: return usage_remove();
1.13 jnemeth 159: label = (uint8_t *)strdup(optarg);
160: break;
1.1 christos 161: case 's':
162: if (size > 0)
163: usage_remove();
164: size = strtoll(optarg, &p, 10);
165: if (*p != 0 || size < 1)
1.18 ! christos 166: return usage_remove();
1.1 christos 167: break;
168: case 't':
1.16 christos 169: if (!gpt_uuid_is_nil(type))
1.18 ! christos 170: return usage_remove();
1.16 christos 171: if (gpt_uuid_parse(optarg, type) != 0)
1.18 ! christos 172: return usage_remove();
1.1 christos 173: break;
174: default:
1.18 ! christos 175: return usage_remove();
1.1 christos 176: }
177: }
178:
179: if (!all ^
1.13 jnemeth 180: (block > 0 || entry > 0 || label != NULL || size > 0 ||
1.16 christos 181: !gpt_uuid_is_nil(type)))
1.18 ! christos 182: return usage_remove();
1.1 christos 183:
1.18 ! christos 184: if (argc != optind)
! 185: return usage_remove();
1.1 christos 186:
1.18 ! christos 187: return rem(gpt);
1.1 christos 188: }
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