show.c revision 1.24
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/show.c,v 1.14 2006/06/22 22:22:32 marcel Exp $"); 34 #endif 35 #ifdef __RCSID 36 __RCSID("$NetBSD: show.c,v 1.24 2015/12/01 09:05:33 christos 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 52 static int show_label = 0; 53 static int show_uuid = 0; 54 static int show_guid = 0; 55 static unsigned int entry = 0; 56 57 const char showmsg[] = "show [-glu] [-i index] device"; 58 59 static int 60 usage_show(void) 61 { 62 63 fprintf(stderr, 64 "usage: %s %s\n", getprogname(), showmsg); 65 return -1; 66 } 67 68 static int 69 show(gpt_t gpt) 70 { 71 off_t start; 72 map_t m, p; 73 struct mbr *mbr; 74 struct gpt_ent *ent; 75 unsigned int i; 76 77 printf(" %*s", gpt->lbawidth, "start"); 78 printf(" %*s", gpt->lbawidth, "size"); 79 printf(" index contents\n"); 80 81 m = map_first(gpt); 82 while (m != NULL) { 83 printf(" %*llu", gpt->lbawidth, (long long)m->map_start); 84 printf(" %*llu", gpt->lbawidth, (long long)m->map_size); 85 putchar(' '); 86 putchar(' '); 87 if (m->map_index > 0) 88 printf("%5d", m->map_index); 89 else 90 printf(" "); 91 putchar(' '); 92 putchar(' '); 93 switch (m->map_type) { 94 case MAP_TYPE_UNUSED: 95 printf("Unused"); 96 break; 97 case MAP_TYPE_MBR: 98 if (m->map_start != 0) 99 printf("Extended "); 100 printf("MBR"); 101 break; 102 case MAP_TYPE_PRI_GPT_HDR: 103 printf("Pri GPT header"); 104 break; 105 case MAP_TYPE_SEC_GPT_HDR: 106 printf("Sec GPT header"); 107 break; 108 case MAP_TYPE_PRI_GPT_TBL: 109 printf("Pri GPT table"); 110 break; 111 case MAP_TYPE_SEC_GPT_TBL: 112 printf("Sec GPT table"); 113 break; 114 case MAP_TYPE_MBR_PART: 115 p = m->map_data; 116 if (p->map_start != 0) 117 printf("Extended "); 118 printf("MBR part "); 119 mbr = p->map_data; 120 for (i = 0; i < 4; i++) { 121 start = le16toh(mbr->mbr_part[i].part_start_hi); 122 start = (start << 16) + 123 le16toh(mbr->mbr_part[i].part_start_lo); 124 if (m->map_start == p->map_start + start) 125 break; 126 } 127 printf("%d", mbr->mbr_part[i].part_typ); 128 break; 129 case MAP_TYPE_GPT_PART: 130 printf("GPT part "); 131 ent = m->map_data; 132 if (show_label) { 133 printf("- \"%s\"", 134 utf16_to_utf8(ent->ent_name)); 135 } else if (show_guid) { 136 char buf[128]; 137 gpt_uuid_snprintf( 138 buf, sizeof(buf), "%d", ent->ent_guid); 139 printf("- %s", buf); 140 } else { 141 char buf[128]; 142 if (show_uuid || gpt_uuid_snprintf(buf, 143 sizeof(buf), "%ls", ent->ent_type) == -1) 144 gpt_uuid_snprintf(buf, sizeof(buf), 145 "%d", ent->ent_type); 146 printf("- %s", buf); 147 } 148 break; 149 case MAP_TYPE_PMBR: 150 printf("PMBR"); 151 break; 152 default: 153 printf("Unknown %#x", m->map_type); 154 break; 155 } 156 putchar('\n'); 157 m = m->map_next; 158 } 159 return 0; 160 } 161 162 static int 163 show_one(gpt_t gpt) 164 { 165 map_t m; 166 struct gpt_ent *ent; 167 char s1[128], s2[128]; 168 #ifdef HN_AUTOSCALE 169 char human_num[5]; 170 #endif 171 172 for (m = map_first(gpt); m != NULL; m = m->map_next) 173 if (entry == m->map_index) 174 break; 175 if (m == NULL) { 176 gpt_warnx(gpt, "Could not find index %d", entry); 177 return -1; 178 } 179 ent = m->map_data; 180 181 printf("Details for index %d:\n", entry); 182 #ifdef HN_AUTOSCALE 183 if (humanize_number(human_num, 5, (int64_t)(m->map_start * gpt->secsz), 184 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 185 human_num[0] = '\0'; 186 if (human_num[0] != '\0') 187 printf("Start: %llu (%s)\n", (long long)m->map_start, 188 human_num); 189 else 190 #endif 191 printf("Start: %llu\n", (long long)m->map_start); 192 #ifdef HN_AUTOSCALE 193 if (humanize_number(human_num, 5, (int64_t)(m->map_size * gpt->secsz), 194 "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0) 195 human_num[0] = '\0'; 196 if (human_num[0] != '\0') 197 printf("Size: %llu (%s)\n", (long long)m->map_size, human_num); 198 else 199 #endif 200 printf("Size: %llu\n", (long long)m->map_size); 201 202 gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type); 203 gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type); 204 if (strcmp(s1, s2) == 0) 205 strlcpy(s1, "unknown", sizeof(s1)); 206 printf("Type: %s (%s)\n", s1, s2); 207 208 gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid); 209 printf("GUID: %s\n", s2); 210 211 printf("Label: %s\n", utf16_to_utf8(ent->ent_name)); 212 213 printf("Attributes:\n"); 214 if (ent->ent_attr == 0) 215 printf(" None\n"); 216 else { 217 if (ent->ent_attr & GPT_ENT_ATTR_REQUIRED_PARTITION) 218 printf(" required for platform to function\n"); 219 if (ent->ent_attr & GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL) 220 printf(" UEFI won't recognize file system\n"); 221 if (ent->ent_attr & GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE) 222 printf(" legacy BIOS boot partition\n"); 223 if (ent->ent_attr & GPT_ENT_ATTR_BOOTME) 224 printf(" indicates a bootable partition\n"); 225 if (ent->ent_attr & GPT_ENT_ATTR_BOOTONCE) 226 printf(" attempt to boot this partition only once\n"); 227 if (ent->ent_attr & GPT_ENT_ATTR_BOOTFAILED) 228 printf(" partition that was marked bootonce but failed to boot\n"); 229 } 230 return 0; 231 } 232 233 int 234 cmd_show(gpt_t gpt, int argc, char *argv[]) 235 { 236 char *p; 237 int ch; 238 239 while ((ch = getopt(argc, argv, "gi:lu")) != -1) { 240 switch(ch) { 241 case 'g': 242 show_guid = 1; 243 break; 244 case 'i': 245 if (entry > 0) 246 return usage_show(); 247 entry = strtoul(optarg, &p, 10); 248 if (*p != 0 || entry < 1) 249 return usage_show(); 250 break; 251 case 'l': 252 show_label = 1; 253 break; 254 case 'u': 255 show_uuid = 1; 256 break; 257 default: 258 return usage_show(); 259 } 260 } 261 262 if (argc != optind) 263 return usage_show(); 264 265 return entry > 0 ? show_one(gpt) : show(gpt); 266 } 267
Indexes created Wed Sep 24 15:09:51 GMT 2025