| | 1 | /* |
| | 2 | * SPDX-License-Identifier: GPL-1.0-or-later |
| | 3 | * |
| | 4 | * This program is free software; you can redistribute it and/or modify |
| | 5 | * it under the terms of the GNU General Public License as published by |
| | 6 | * the Free Software Foundation; either version 1 of the License, or |
| | 7 | * (at your option) any later version. |
| | 8 | * |
| | 9 | * Copyright (C) 1992 A. V. Le Blanc (LeBlanc@mcc.ac.uk) |
| | 10 | * Copyright (C) 2012 Davidlohr Bueso <dave@gnu.org> |
| | 11 | * |
| | 12 | * Copyright (C) 2007-2013 Karel Zak <kzak@redhat.com> |
| | 13 | */ |
| | 14 | #include <unistd.h> |
| | 15 | #include <stdio.h> |
| | 16 | #include <stdlib.h> |
| | 17 | #include <string.h> |
| | 18 | #include <fcntl.h> |
| | 19 | #include <ctype.h> |
| | 20 | #include <errno.h> |
| | 21 | #include <getopt.h> |
| | 22 | #include <sys/stat.h> |
| | 23 | #include <sys/time.h> |
| | 24 | #include <time.h> |
| | 25 | #include <limits.h> |
| | 26 | #include <signal.h> |
| | 27 | #include <poll.h> |
| | 28 | #include <libsmartcols.h> |
| | 29 | #ifdef HAVE_LIBREADLINE |
| | 30 | # define _FUNCTION_DEF |
| | 31 | # include <readline/readline.h> |
| | 32 | #endif |
| | 33 | |
| | 34 | #include "c.h" |
| | 35 | #include "xalloc.h" |
| | 36 | #include "all-io.h" |
| | 37 | #include "nls.h" |
| | 38 | #include "rpmatch.h" |
| | 39 | #include "blkdev.h" |
| | 40 | #include "mbsalign.h" |
| | 41 | #include "pathnames.h" |
| | 42 | #include "canonicalize.h" |
| | 43 | #include "strutils.h" |
| | 44 | #include "closestream.h" |
| | 45 | #include "pager.h" |
| | 46 | |
| | 47 | #include "fdisk.h" |
| | 48 | |
| | 49 | #include "pt-sun.h" /* to toggle flags */ |
| | 50 | |
| | 51 | #ifdef HAVE_LINUX_COMPILER_H |
| | 52 | # include <linux/compiler.h> |
| | 53 | #endif |
| | 54 | #ifdef HAVE_LINUX_BLKPG_H |
| | 55 | # include <linux/blkpg.h> |
| | 56 | #endif |
| | 57 | |
| | 58 | #ifdef __linux__ |
| | 59 | # ifdef HAVE_LINUX_FS_H |
| | 60 | # include <linux/fs.h> |
| | 61 | # endif |
| | 62 | #endif |
| | 63 | |
| | 64 | int pwipemode = WIPEMODE_AUTO; |
| | 65 | int device_is_used; |
| | 66 | int is_interactive; |
| | 67 | struct fdisk_table *original_layout; |
| | 68 | |
| | 69 | static int wipemode = WIPEMODE_AUTO; |
| | 70 | |
| | 71 | /* |
| | 72 | * fdisk debug stuff (see fdisk.h and include/debug.h) |
| | 73 | */ |
| | 74 | UL_DEBUG_DEFINE_MASK(fdisk); |
| | 75 | UL_DEBUG_DEFINE_MASKNAMES(fdisk) = UL_DEBUG_EMPTY_MASKNAMES; |
| | 76 | |
| | 77 | static void fdiskprog_init_debug(void) |
| | 78 | { |
| | 79 | __UL_INIT_DEBUG_FROM_ENV(fdisk, FDISKPROG_DEBUG_, 0, FDISK_DEBUG); |
| | 80 | } |
| | 81 | |
| | 82 | static void reply_sighandler(int sig __attribute__((unused))) |
| | 83 | { |
| | 84 | DBG(ASK, ul_debug("got signal")); |
| | 85 | } |
| | 86 | |
| | 87 | static int reply_running; |
| | 88 | |
| | 89 | #ifdef HAVE_LIBREADLINE |
| | 90 | static char *reply_line; |
| | 91 | |
| | 92 | static void reply_linehandler(char *line) |
| | 93 | { |
| | 94 | reply_line = line; |
| | 95 | reply_running = 0; |
| | 96 | rl_callback_handler_remove(); /* avoid duplicate prompt */ |
| | 97 | } |
| | 98 | #endif |
| | 99 | |
| | 100 | int get_user_reply(const char *prompt, char *buf, size_t bufsz) |
| | 101 | { |
| | 102 | struct sigaction oldact, act = { |
| | 103 | .sa_handler = reply_sighandler |
| | 104 | }; |
| | 105 | struct pollfd fds[] = { |
| | 106 | { .fd = fileno(stdin), .events = POLLIN } |
| | 107 | }; |
| | 108 | size_t sz; |
| | 109 | int ret = 0; |
| | 110 | |
| | 111 | DBG(ASK, ul_debug("asking for user reply %s", is_interactive ? "[interactive]" : "")); |
| | 112 | |
| | 113 | sigemptyset(&act.sa_mask); |
| | 114 | sigaction(SIGINT, &act, &oldact); |
| | 115 | |
| | 116 | #ifdef HAVE_LIBREADLINE |
| | 117 | if (is_interactive) |
| | 118 | rl_callback_handler_install(prompt, reply_linehandler); |
| | 119 | #endif |
| | 120 | errno = 0; |
| | 121 | reply_running = 1; |
| | 122 | do { |
| | 123 | int rc; |
| | 124 | |
| | 125 | *buf = '\0'; |
| | 126 | #ifdef HAVE_LIBREADLINE |
| | 127 | if (!is_interactive) |
| | 128 | #endif |
| | 129 | { |
| | 130 | fputs(prompt, stdout); |
| | 131 | fflush(stdout); |
| | 132 | } |
| | 133 | |
| | 134 | rc = poll(fds, 1, -1); |
| | 135 | if (rc == -1 && errno == EINTR) { /* interrupted by signal */ |
| | 136 | DBG(ASK, ul_debug("cancel by CTRL+C")); |
| | 137 | ret = -ECANCELED; |
| | 138 | goto done; |
| | 139 | } |
| | 140 | if (rc == -1 && errno != EAGAIN) { /* error */ |
| | 141 | ret = -errno; |
| | 142 | goto done; |
| | 143 | } |
| | 144 | #ifdef HAVE_LIBREADLINE |
| | 145 | if (is_interactive) { |
| | 146 | /* read input and copy to buf[] */ |
| | 147 | rl_callback_read_char(); |
| | 148 | if (!reply_running && reply_line) { |
| | 149 | sz = strlen(reply_line); |
| | 150 | if (sz == 0) |
| | 151 | buf[sz++] = '\n'; |
| | 152 | else |
| | 153 | memcpy(buf, reply_line, min(sz, bufsz)); |
| | 154 | buf[min(sz, bufsz - 1)] = '\0'; |
| | 155 | free(reply_line); |
| | 156 | reply_line = NULL; |
| | 157 | } |
| | 158 | } else |
| | 159 | #endif |
| | 160 | { |
| | 161 | if (!fgets(buf, bufsz, stdin)) |
| | 162 | *buf = '\0'; |
| | 163 | break; |
| | 164 | } |
| | 165 | } while (reply_running); |
| | 166 | |
| | 167 | if (!*buf) { |
| | 168 | DBG(ASK, ul_debug("cancel by CTRL+D")); |
| | 169 | ret = -ECANCELED; |
| | 170 | clearerr(stdin); |
| | 171 | goto done; |
| | 172 | } |
| | 173 | |
| | 174 | /* |
| | 175 | * cleanup the reply |
| | 176 | */ |
| | 177 | sz = ltrim_whitespace((unsigned char *) buf); |
| | 178 | if (sz && *(buf + sz - 1) == '\n') |
| | 179 | *(buf + sz - 1) = '\0'; |
| | 180 | |
| | 181 | done: |
| | 182 | #ifdef HAVE_LIBREADLINE |
| | 183 | if (is_interactive) |
| | 184 | rl_callback_handler_remove(); |
| | 185 | #endif |
| | 186 | sigaction(SIGINT, &oldact, NULL); |
| | 187 | DBG(ASK, ul_debug("user's reply: >>>%s<<< [rc=%d]", buf, ret)); |
| | 188 | return ret; |
| | 189 | } |
| | 190 | |
| | 191 | static int ask_menu(struct fdisk_context *cxt, struct fdisk_ask *ask, |
| | 192 | char *buf, size_t bufsz) |
| | 193 | |
| | 194 | { |
| | 195 | const char *q = fdisk_ask_get_query(ask); |
| | 196 | int dft = fdisk_ask_menu_get_default(ask); |
| | 197 | |
| | 198 | if (q) { |
| | 199 | fputs(q, stdout); /* print header */ |
| | 200 | fputc('\n', stdout); |
| | 201 | } |
| | 202 | |
| | 203 | do { |
| | 204 | char prompt[128]; |
| | 205 | int key, c, rc; |
| | 206 | const char *name, *desc; |
| | 207 | size_t i = 0; |
| | 208 | |
| | 209 | /* print menu items */ |
| | 210 | while (fdisk_ask_menu_get_item(ask, i++, &key, &name, &desc) == 0) { |
| | 211 | if (desc) |
| | 212 | fprintf(stdout, " %c %s (%s)\n", key, name, desc); |
| | 213 | else |
| | 214 | fprintf(stdout, " %c %s\n", key, name); |
| | 215 | } |
| | 216 | |
| | 217 | /* ask for key */ |
| | 218 | snprintf(prompt, sizeof(prompt), _("Select (default %c): "), dft); |
| | 219 | rc = get_user_reply(prompt, buf, bufsz); |
| | 220 | if (rc) |
| | 221 | return rc; |
| | 222 | if (!*buf) { |
| | 223 | fdisk_info(cxt, _("Using default response %c."), dft); |
| | 224 | c = dft; |
| | 225 | } else |
| | 226 | c = tolower(buf[0]); |
| | 227 | |
| | 228 | /* check result */ |
| | 229 | i = 0; |
| | 230 | while (fdisk_ask_menu_get_item(ask, i++, &key, NULL, NULL) == 0) { |
| | 231 | if (c == key) { |
| | 232 | fdisk_ask_menu_set_result(ask, c); |
| | 233 | return 0; /* success */ |
| | 234 | } |
| | 235 | } |
| | 236 | fdisk_warnx(cxt, _("Value out of range.")); |
| | 237 | } while (1); |
| | 238 | |
| | 239 | return -EINVAL; |
| | 240 | } |
| | 241 | |
| | 242 | |
| | 243 | #define tochar(num) ((int) ('a' + num - 1)) |
| | 244 | static int ask_number(struct fdisk_context *cxt, |
| | 245 | struct fdisk_ask *ask, |
| | 246 | char *buf, size_t bufsz) |
| | 247 | { |
| | 248 | char prompt[128] = { '\0' }; |
| | 249 | const char *q = fdisk_ask_get_query(ask); |
| | 250 | const char *range = fdisk_ask_number_get_range(ask); |
| | 251 | |
| | 252 | uint64_t dflt = fdisk_ask_number_get_default(ask), |
| | 253 | low = fdisk_ask_number_get_low(ask), |
| | 254 | high = fdisk_ask_number_get_high(ask); |
| | 255 | int inchar = fdisk_ask_number_inchars(ask); |
| | 256 | |
| | 257 | assert(q); |
| | 258 | |
| | 259 | DBG(ASK, ul_debug("asking for number " |
| | 260 | "['%s', <%"PRIu64",%"PRIu64">, default=%"PRIu64", range: %s]", |
| | 261 | q, low, high, dflt, range)); |
| | 262 | |
| | 263 | if (range && dflt >= low && dflt <= high) { |
| | 264 | if (inchar) |
| | 265 | snprintf(prompt, sizeof(prompt), _("%s (%s, default %c): "), |
| | 266 | q, range, tochar(dflt)); |
| | 267 | else |
| | 268 | snprintf(prompt, sizeof(prompt), _("%s (%s, default %"PRIu64"): "), |
| | 269 | q, range, dflt); |
| | 270 | |
| | 271 | } else if (dflt >= low && dflt <= high) { |
| | 272 | if (inchar) |
| | 273 | snprintf(prompt, sizeof(prompt), _("%s (%c-%c, default %c): "), |
| | 274 | q, tochar(low), tochar(high), tochar(dflt)); |
| | 275 | else |
| | 276 | snprintf(prompt, sizeof(prompt), |
| | 277 | _("%s (%"PRIu64"-%"PRIu64", default %"PRIu64"): "), |
| | 278 | q, low, high, dflt); |
| | 279 | } else if (inchar) |
| | 280 | snprintf(prompt, sizeof(prompt), _("%s (%c-%c): "), |
| | 281 | q, tochar(low), tochar(high)); |
| | 282 | else |
| | 283 | snprintf(prompt, sizeof(prompt), _("%s (%"PRIu64"-%"PRIu64"): "), |
| | 284 | q, low, high); |
| | 285 | |
| | 286 | do { |
| | 287 | int rc = get_user_reply(prompt, buf, bufsz); |
| | 288 | uint64_t num = 0; |
| | 289 | |
| | 290 | if (rc) |
| | 291 | return rc; |
| | 292 | if (!*buf && dflt >= low && dflt <= high) |
| | 293 | return fdisk_ask_number_set_result(ask, dflt); |
| | 294 | |
| | 295 | if (isdigit_string(buf)) { |
| | 296 | char *end; |
| | 297 | |
| | 298 | errno = 0; |
| | 299 | num = strtoumax(buf, &end, 10); |
| | 300 | if (errno || buf == end || (end && *end)) |
| | 301 | continue; |
| | 302 | } else if (inchar && isalpha(*buf)) { |
| | 303 | num = tolower(*buf) - 'a' + 1; |
| | 304 | } else |
| | 305 | rc = -EINVAL; |
| | 306 | |
| | 307 | if (rc == 0 && num >= low && num <= high) |
| | 308 | return fdisk_ask_number_set_result(ask, num); |
| | 309 | |
| | 310 | fdisk_warnx(cxt, _("Value out of range.")); |
| | 311 | } while (1); |
| | 312 | |
| | 313 | return -1; |
| | 314 | } |
| | 315 | |
| | 316 | static int ask_offset(struct fdisk_context *cxt, |
| | 317 | struct fdisk_ask *ask, |
| | 318 | char *buf, size_t bufsz) |
| | 319 | { |
| | 320 | char prompt[128] = { '\0' }; |
| | 321 | const char *q = fdisk_ask_get_query(ask); |
| | 322 | const char *range = fdisk_ask_number_get_range(ask); |
| | 323 | |
| | 324 | uint64_t dflt = fdisk_ask_number_get_default(ask), |
| | 325 | low = fdisk_ask_number_get_low(ask), |
| | 326 | high = fdisk_ask_number_get_high(ask), |
| | 327 | base = fdisk_ask_number_get_base(ask); |
| | 328 | |
| | 329 | assert(q); |
| | 330 | |
| | 331 | DBG(ASK, ul_debug("asking for offset ['%s', <%"PRIu64",%"PRIu64">, base=%"PRIu64", default=%"PRIu64", range: %s]", |
| | 332 | q, low, high, base, dflt, range)); |
| | 333 | |
| | 334 | if (range && dflt >= low && dflt <= high) |
| | 335 | snprintf(prompt, sizeof(prompt), _("%s (%s, default %"PRIu64"): "), |
| | 336 | q, range, dflt); |
| | 337 | else if (dflt >= low && dflt <= high) |
| | 338 | snprintf(prompt, sizeof(prompt), |
| | 339 | _("%s (%"PRIu64"-%"PRIu64", default %"PRIu64"): "), |
| | 340 | q, low, high, dflt); |
| | 341 | else |
| | 342 | snprintf(prompt, sizeof(prompt), _("%s (%"PRIu64"-%"PRIu64"): "), |
| | 343 | q, low, high); |
| | 344 | |
| | 345 | do { |
| | 346 | uintmax_t num = 0; |
| | 347 | char sig = 0, *p; |
| | 348 | int pwr = 0; |
| | 349 | |
| | 350 | int rc = get_user_reply(prompt, buf, bufsz); |
| | 351 | if (rc) |
| | 352 | return rc; |
| | 353 | if (!*buf && dflt >= low && dflt <= high) |
| | 354 | return fdisk_ask_number_set_result(ask, dflt); |
| | 355 | |
| | 356 | p = buf; |
| | 357 | if (*p == '+' || *p == '-') { |
| | 358 | sig = *buf; |
| | 359 | p++; |
| | 360 | } |
| | 361 | |
| | 362 | rc = ul_parse_size(p, &num, &pwr); |
| | 363 | if (rc) |
| | 364 | continue; |
| | 365 | DBG(ASK, ul_debug("parsed size: %ju", num)); |
| | 366 | if (sig && pwr) { |
| | 367 | /* +{size}{K,M,...} specified, the "num" is in bytes */ |
| | 368 | uint64_t unit = fdisk_ask_number_get_unit(ask); |
| | 369 | num += unit/2; /* round */ |
| | 370 | num /= unit; |
| | 371 | } |
| | 372 | if (sig == '+') |
| | 373 | num += base; |
| | 374 | else if (sig == '-' && fdisk_ask_number_is_wrap_negative(ask)) |
| | 375 | num = high - num; |
| | 376 | else if (sig == '-') |
| | 377 | num = base - num; |
| | 378 | |
| | 379 | DBG(ASK, ul_debug("final offset: %ju [sig: %c, power: %d, %s]", |
| | 380 | num, sig, pwr, |
| | 381 | sig ? "relative" : "absolute")); |
| | 382 | if (num >= low && num <= high) { |
| | 383 | if (sig && pwr) |
| | 384 | fdisk_ask_number_set_relative(ask, 1); |
| | 385 | return fdisk_ask_number_set_result(ask, (uint64_t)num); |
| | 386 | } |
| | 387 | fdisk_warnx(cxt, _("Value out of range.")); |
| | 388 | } while (1); |
| | 389 | |
| | 390 | return -1; |
| | 391 | } |
| | 392 | |
| | 393 | static unsigned int info_count; |
| | 394 | |
| | 395 | static void fputs_info(struct fdisk_ask *ask, FILE *out) |
| | 396 | { |
| | 397 | const char *msg; |
| | 398 | assert(ask); |
| | 399 | |
| | 400 | msg = fdisk_ask_print_get_mesg(ask); |
| | 401 | if (!msg) |
| | 402 | return; |
| | 403 | if (info_count == 1) |
| | 404 | fputc('\n', out); |
| | 405 | |
| | 406 | fputs(msg, out); |
| | 407 | fputc('\n', out); |
| | 408 | } |
| | 409 | |
| | 410 | int ask_callback(struct fdisk_context *cxt, struct fdisk_ask *ask, |
| | 411 | void *data __attribute__((__unused__))) |
| | 412 | { |
| | 413 | int rc = 0; |
| | 414 | char buf[BUFSIZ] = { '\0' }; |
| | 415 | |
| | 416 | assert(cxt); |
| | 417 | assert(ask); |
| | 418 | |
| | 419 | if (fdisk_ask_get_type(ask) != FDISK_ASKTYPE_INFO) |
| | 420 | info_count = 0; |
| | 421 | |
| | 422 | switch(fdisk_ask_get_type(ask)) { |
| | 423 | case FDISK_ASKTYPE_MENU: |
| | 424 | return ask_menu(cxt, ask, buf, sizeof(buf)); |
| | 425 | case FDISK_ASKTYPE_NUMBER: |
| | 426 | return ask_number(cxt, ask, buf, sizeof(buf)); |
| | 427 | case FDISK_ASKTYPE_OFFSET: |
| | 428 | return ask_offset(cxt, ask, buf, sizeof(buf)); |
| | 429 | case FDISK_ASKTYPE_INFO: |
| | 430 | if (!fdisk_is_listonly(cxt)) |
| | 431 | info_count++; |
| | 432 | fputs_info(ask, stdout); |
| | 433 | break; |
| | 434 | case FDISK_ASKTYPE_WARNX: |
| | 435 | fflush(stdout); |
| | 436 | color_scheme_fenable("warn", UL_COLOR_RED, stderr); |
| | 437 | fputs(fdisk_ask_print_get_mesg(ask), stderr); |
| | 438 | color_fdisable(stderr); |
| | 439 | fputc('\n', stderr); |
| | 440 | break; |
| | 441 | case FDISK_ASKTYPE_WARN: |
| | 442 | fflush(stdout); |
| | 443 | color_scheme_fenable("warn", UL_COLOR_RED, stderr); |
| | 444 | fputs(fdisk_ask_print_get_mesg(ask), stderr); |
| | 445 | errno = fdisk_ask_print_get_errno(ask); |
| | 446 | fprintf(stderr, ": %m\n"); |
| | 447 | color_fdisable(stderr); |
| | 448 | break; |
| | 449 | case FDISK_ASKTYPE_YESNO: |
| | 450 | fputc('\n', stdout); |
| | 451 | do { |
| | 452 | int x; |
| | 453 | fputs(fdisk_ask_get_query(ask), stdout); |
| | 454 | rc = get_user_reply(_(" [Y]es/[N]o: "), buf, sizeof(buf)); |
| | 455 | if (rc) |
| | 456 | break; |
| | 457 | x = rpmatch(buf); |
| | 458 | if (x == RPMATCH_YES || x == RPMATCH_NO) { |
| | 459 | fdisk_ask_yesno_set_result(ask, x); |
| | 460 | break; |
| | 461 | } |
| | 462 | } while(1); |
| | 463 | DBG(ASK, ul_debug("yes-no ask: reply '%s' [rc=%d]", buf, rc)); |
| | 464 | break; |
| | 465 | case FDISK_ASKTYPE_STRING: |
| | 466 | { |
| | 467 | char prmt[BUFSIZ]; |
| | 468 | snprintf(prmt, sizeof(prmt), "%s: ", fdisk_ask_get_query(ask)); |
| | 469 | fputc('\n', stdout); |
| | 470 | rc = get_user_reply(prmt, buf, sizeof(buf)); |
| | 471 | if (rc == 0) |
| | 472 | fdisk_ask_string_set_result(ask, xstrdup(buf)); |
| | 473 | DBG(ASK, ul_debug("string ask: reply '%s' [rc=%d]", buf, rc)); |
| | 474 | break; |
| | 475 | } |
| | 476 | default: |
| | 477 | warnx(_("internal error: unsupported dialog type %d"), fdisk_ask_get_type(ask)); |
| | 478 | return -EINVAL; |
| | 479 | } |
| | 480 | return rc; |
| | 481 | } |
| | 482 | |
| | 483 | static struct fdisk_parttype *ask_partition_type(struct fdisk_context *cxt, int *canceled) |
| | 484 | { |
| | 485 | const char *q; |
| | 486 | struct fdisk_label *lb; |
| | 487 | |
| | 488 | assert(cxt); |
| | 489 | lb = fdisk_get_label(cxt, NULL); |
| | 490 | |
| | 491 | if (!lb) |
| | 492 | return NULL; |
| | 493 | |
| | 494 | *canceled = 0; |
| | 495 | |
| | 496 | if (fdisk_label_has_parttypes_shortcuts(lb)) |
| | 497 | q = fdisk_label_has_code_parttypes(lb) ? |
| | 498 | _("Hex code or alias (type L to list all): ") : |
| | 499 | _("Partition type or alias (type L to list all): "); |
| | 500 | else |
| | 501 | q = fdisk_label_has_code_parttypes(lb) ? |
| | 502 | _("Hex code (type L to list all codes): ") : |
| | 503 | _("Partition type (type L to list all types): "); |
| | 504 | do { |
| | 505 | char buf[256] = { '\0' }; |
| | 506 | int rc = get_user_reply(q, buf, sizeof(buf)); |
| | 507 | |
| | 508 | if (rc) { |
| | 509 | if (rc == -ECANCELED) |
| | 510 | *canceled = 1; |
| | 511 | break; |
| | 512 | } |
| | 513 | |
| | 514 | if (buf[1] == '\0' && toupper(*buf) == 'L') |
| | 515 | list_partition_types(cxt); |
| | 516 | else if (*buf) { |
| | 517 | struct fdisk_parttype *t = fdisk_label_advparse_parttype(lb, buf, |
| | 518 | FDISK_PARTTYPE_PARSE_DATA |
| | 519 | | FDISK_PARTTYPE_PARSE_ALIAS |
| | 520 | | FDISK_PARTTYPE_PARSE_NAME |
| | 521 | | FDISK_PARTTYPE_PARSE_SEQNUM); |
| | 522 | if (!t) |
| | 523 | fdisk_info(cxt, _("Failed to parse '%s' partition type."), buf); |
| | 524 | return t; |
| | 525 | } |
| | 526 | } while (1); |
| | 527 | |
| | 528 | return NULL; |
| | 529 | } |
| | 530 | |
| | 531 | |
| | 532 | void list_partition_types(struct fdisk_context *cxt) |
| | 533 | { |
| | 534 | size_t ntypes = 0, next = 0; |
| | 535 | struct fdisk_label *lb; |
| | 536 | int pager = 0; |
| | 537 | |
| | 538 | assert(cxt); |
| | 539 | lb = fdisk_get_label(cxt, NULL); |
| | 540 | if (!lb) |
| | 541 | return; |
| | 542 | ntypes = fdisk_label_get_nparttypes(lb); |
| | 543 | if (!ntypes) |
| | 544 | return; |
| | 545 | |
| | 546 | if (fdisk_label_has_code_parttypes(lb)) { |
| | 547 | /* |
| | 548 | * Prints in 4 columns in format <hex> <name> |
| | 549 | */ |
| | 550 | size_t last[4], done = 0, size; |
| | 551 | int i; |
| | 552 | |
| | 553 | size = ntypes; |
| | 554 | |
| | 555 | for (i = 3; i >= 0; i--) |
| | 556 | last[3 - i] = done += (size + i - done) / (i + 1); |
| | 557 | i = done = 0; |
| | 558 | |
| | 559 | do { |
| | 560 | #define NAME_WIDTH 15 |
| | 561 | char name[NAME_WIDTH * MB_LEN_MAX]; |
| | 562 | size_t width = NAME_WIDTH; |
| | 563 | const struct fdisk_parttype *t = fdisk_label_get_parttype(lb, next); |
| | 564 | size_t ret; |
| | 565 | |
| | 566 | if (fdisk_parttype_get_name(t)) { |
| | 567 | printf("%s%02x ", i ? " " : "\n", |
| | 568 | fdisk_parttype_get_code(t)); |
| | 569 | ret = mbsalign(_(fdisk_parttype_get_name(t)), |
| | 570 | name, sizeof(name), |
| | 571 | &width, MBS_ALIGN_LEFT, 0); |
| | 572 | |
| | 573 | if (ret == (size_t)-1 || ret >= sizeof(name)) |
| | 574 | printf("%-15.15s", |
| | 575 | _(fdisk_parttype_get_name(t))); |
| | 576 | else |
| | 577 | fputs(name, stdout); |
| | 578 | } |
| | 579 | |
| | 580 | next = last[i++] + done; |
| | 581 | if (i > 3 || next >= last[i]) { |
| | 582 | i = 0; |
| | 583 | next = ++done; |
| | 584 | } |
| | 585 | } while (done < last[0]); |
| | 586 | |
| | 587 | putchar('\n'); |
| | 588 | } else { |
| | 589 | /* |
| | 590 | * Prints 1 column in format <idx> <name> <typestr> |
| | 591 | */ |
| | 592 | size_t i; |
| | 593 | |
| | 594 | pager_open(); |
| | 595 | pager = 1; |
| | 596 | |
| | 597 | for (i = 0; i < ntypes; i++) { |
| | 598 | const struct fdisk_parttype *t = fdisk_label_get_parttype(lb, i); |
| | 599 | printf("%3zu %-30s %s\n", i + 1, |
| | 600 | fdisk_parttype_get_name(t), |
| | 601 | fdisk_parttype_get_string(t)); |
| | 602 | } |
| | 603 | |
| | 604 | } |
| | 605 | |
| | 606 | |
| | 607 | /* |
| | 608 | * Aliases |
| | 609 | */ |
| | 610 | if (fdisk_label_has_parttypes_shortcuts(lb)) { |
| | 611 | const char *alias = NULL, *typestr = NULL; |
| | 612 | int rc = 0; |
| | 613 | |
| | 614 | fputs(_("\nAliases:\n"), stdout); |
| | 615 | |
| | 616 | for (next = 0; rc == 0 || rc == 2; next++) { |
| | 617 | /* rc: <0 error, 0 success, 1 end, 2 deprecated */ |
| | 618 | rc = fdisk_label_get_parttype_shortcut(lb, |
| | 619 | next, &typestr, NULL, &alias); |
| | 620 | if (rc == 0) |
| | 621 | printf(" %-14s - %s\n", alias, typestr); |
| | 622 | } |
| | 623 | } |
| | 624 | |
| | 625 | if (pager) |
| | 626 | pager_close(); |
| | 627 | |
| | 628 | } |
| | 629 | |
| | 630 | void toggle_dos_compatibility_flag(struct fdisk_context *cxt) |
| | 631 | { |
| | 632 | struct fdisk_label *lb = fdisk_get_label(cxt, "dos"); |
| | 633 | int flag; |
| | 634 | |
| | 635 | if (!lb) |
| | 636 | return; |
| | 637 | |
| | 638 | flag = !fdisk_dos_is_compatible(lb); |
| | 639 | fdisk_info(cxt, flag ? |
| | 640 | _("DOS Compatibility flag is set (DEPRECATED!)") : |
| | 641 | _("DOS Compatibility flag is not set")); |
| | 642 | |
| | 643 | fdisk_dos_enable_compatible(lb, flag); |
| | 644 | |
| | 645 | if (fdisk_is_label(cxt, DOS)) |
| | 646 | fdisk_reset_alignment(cxt); /* reset the current label */ |
| | 647 | } |
| | 648 | |
| | 649 | static int strtosize_sectors(const char *str, unsigned long sector_size, |
| | 650 | uintmax_t *res) |
| | 651 | { |
| | 652 | size_t len = strlen(str); |
| | 653 | int insec = 0; |
| | 654 | int rc; |
| | 655 | char *buf = NULL; |
| | 656 | |
| | 657 | if (!len) |
| | 658 | return 0; |
| | 659 | |
| | 660 | if (str[len - 1] == 'S' || str[len - 1] == 's') { |
| | 661 | insec = 1; |
| | 662 | str = buf = strndup(str, len - 1); /* strip trailing 's' */ |
| | 663 | if (!str) |
| | 664 | return -errno; |
| | 665 | } |
| | 666 | |
| | 667 | rc = strtosize(str, res); |
| | 668 | if (rc == 0 && insec) |
| | 669 | *res *= sector_size; |
| | 670 | |
| | 671 | free(buf); |
| | 672 | return rc; |
| | 673 | } |
| | 674 | |
| | 675 | void resize_partition(struct fdisk_context *cxt) |
| | 676 | { |
| | 677 | struct fdisk_partition *pa = NULL, *npa = NULL, *next = NULL; |
| | 678 | char *query = NULL, *response = NULL, *default_size; |
| | 679 | struct fdisk_table *tb = NULL; |
| | 680 | uint64_t max_size, size, secs; |
| | 681 | size_t i; |
| | 682 | int rc; |
| | 683 | |
| | 684 | assert(cxt); |
| | 685 | |
| | 686 | rc = fdisk_ask_partnum(cxt, &i, FALSE); |
| | 687 | if (rc) |
| | 688 | goto err; |
| | 689 | |
| | 690 | rc = fdisk_partition_get_max_size(cxt, i, &max_size); |
| | 691 | if (rc) |
| | 692 | goto err; |
| | 693 | |
| | 694 | max_size *= fdisk_get_sector_size(cxt); |
| | 695 | |
| | 696 | default_size = size_to_human_string(0, max_size); |
| | 697 | xasprintf(&query, _("New <size>{K,M,G,T,P} in bytes or <size>S in sectors (default %s)"), |
| | 698 | default_size); |
| | 699 | free(default_size); |
| | 700 | |
| | 701 | rc = fdisk_ask_string(cxt, query, &response); |
| | 702 | if (rc) |
| | 703 | goto err; |
| | 704 | |
| | 705 | size = max_size; |
| | 706 | rc = strtosize_sectors(response, fdisk_get_sector_size(cxt), &size); |
| | 707 | if (rc || size > max_size) { |
| | 708 | fdisk_warnx(cxt, _("Invalid size")); |
| | 709 | goto err; |
| | 710 | } |
| | 711 | |
| | 712 | npa = fdisk_new_partition(); |
| | 713 | if (!npa) |
| | 714 | goto err; |
| | 715 | |
| | 716 | secs = size / fdisk_get_sector_size(cxt); |
| | 717 | fdisk_partition_size_explicit(npa, 1); |
| | 718 | fdisk_partition_set_size(npa, secs); |
| | 719 | |
| | 720 | rc = fdisk_set_partition(cxt, i, npa); |
| | 721 | if (rc) |
| | 722 | goto err; |
| | 723 | |
| | 724 | fdisk_info(cxt, _("Partition %zu has been resized."), i + 1); |
| | 725 | |
| | 726 | out: |
| | 727 | free(query); |
| | 728 | free(response); |
| | 729 | fdisk_unref_partition(next); |
| | 730 | fdisk_unref_partition(pa); |
| | 731 | fdisk_unref_partition(npa); |
| | 732 | fdisk_unref_table(tb); |
| | 733 | return; |
| | 734 | |
| | 735 | err: |
| | 736 | fdisk_warnx(cxt, _("Could not resize partition %zu: %s"), |
| | 737 | i + 1, strerror(-rc)); |
| | 738 | goto out; |
| | 739 | } |
| | 740 | |
| | 741 | void change_partition_type(struct fdisk_context *cxt) |
| | 742 | { |
| | 743 | size_t i; |
| | 744 | struct fdisk_parttype *t = NULL; |
| | 745 | struct fdisk_partition *pa = NULL; |
| | 746 | const char *old = NULL; |
| | 747 | int canceled = 0; |
| | 748 | |
| | 749 | assert(cxt); |
| | 750 | |
| | 751 | if (fdisk_ask_partnum(cxt, &i, FALSE)) |
| | 752 | return; |
| | 753 | |
| | 754 | if (fdisk_get_partition(cxt, i, &pa)) { |
| | 755 | fdisk_warnx(cxt, _("Partition %zu does not exist yet!"), i + 1); |
| | 756 | return; |
| | 757 | } |
| | 758 | |
| | 759 | t = (struct fdisk_parttype *) fdisk_partition_get_type(pa); |
| | 760 | old = t ? fdisk_parttype_get_name(t) : _("Unknown"); |
| | 761 | |
| | 762 | do { |
| | 763 | t = ask_partition_type(cxt, &canceled); |
| | 764 | if (canceled) |
| | 765 | break; |
| | 766 | } while (!t); |
| | 767 | |
| | 768 | if (canceled == 0 && t && fdisk_set_partition_type(cxt, i, t) == 0) |
| | 769 | fdisk_info(cxt, |
| | 770 | _("Changed type of partition '%s' to '%s'."), |
| | 771 | old, t ? fdisk_parttype_get_name(t) : _("Unknown")); |
| | 772 | else |
| | 773 | fdisk_info(cxt, |
| | 774 | _("Type of partition %zu is unchanged: %s."), |
| | 775 | i + 1, old); |
| | 776 | |
| | 777 | fdisk_unref_partition(pa); |
| | 778 | fdisk_unref_parttype(t); |
| | 779 | } |
| | 780 | |
| | 781 | #ifdef BLKDISCARD |
| | 782 | |
| | 783 | static int do_discard(struct fdisk_context *cxt, struct fdisk_partition *pa) |
| | 784 | { |
| | 785 | char buf[512]; |
| | 786 | unsigned long ss; |
| | 787 | uint64_t range[2]; |
| | 788 | int yes = 0; |
| | 789 | |
| | 790 | ss = fdisk_get_sector_size(cxt); |
| | 791 | |
| | 792 | range[0] = (uint64_t) fdisk_partition_get_start(pa); |
| | 793 | range[1] = (uint64_t) fdisk_partition_get_size(pa); |
| | 794 | |
| | 795 | snprintf(buf, sizeof(buf), _("All data in the region (%"PRIu64 |
| | 796 | "-%"PRIu64") will be lost! Continue?"), |
| | 797 | range[0], range[0] + range[1] - 1); |
| | 798 | |
| | 799 | range[0] *= (uint64_t) ss; |
| | 800 | range[1] *= (uint64_t) ss; |
| | 801 | |
| | 802 | fdisk_ask_yesno(cxt, buf, &yes); |
| | 803 | if (!yes) |
| | 804 | return 1; |
| | 805 | |
| | 806 | errno = 0; |
| | 807 | if (ioctl(fdisk_get_devfd(cxt), BLKDISCARD, &range)) { |
| | 808 | fdisk_warn(cxt, _("BLKDISCARD ioctl failed")); |
| | 809 | return -errno; |
| | 810 | } |
| | 811 | return 0; |
| | 812 | } |
| | 813 | |
| | 814 | static void discard_partition(struct fdisk_context *cxt) |
| | 815 | { |
| | 816 | struct fdisk_partition *pa = NULL; |
| | 817 | size_t n = 0; |
| | 818 | |
| | 819 | fdisk_info(cxt, _("\nThe partition sectors will be immediately discarded.\n" |
| | 820 | "You can exit this dialog by pressing CTRL+C.\n")); |
| | 821 | |
| | 822 | if (fdisk_ask_partnum(cxt, &n, FALSE)) |
| | 823 | goto done; |
| | 824 | if (fdisk_get_partition(cxt, n, &pa)) { |
| | 825 | fdisk_warnx(cxt, _("Partition %zu does not exist yet!"), n + 1); |
| | 826 | goto done; |
| | 827 | } |
| | 828 | |
| | 829 | if (!fdisk_partition_has_size(pa) || !fdisk_partition_has_start(pa)) { |
| | 830 | fdisk_warnx(cxt, _("Partition %zu has an unspecified range."), n + 1); |
| | 831 | goto done; |
| | 832 | } |
| | 833 | |
| | 834 | if (do_discard(cxt, pa) == 0) |
| | 835 | fdisk_info(cxt, _("Discarded sectors on partition %zu."), n + 1); |
| | 836 | done: |
| | 837 | fdisk_unref_partition(pa); |
| | 838 | } |
| | 839 | |
| | 840 | static void discard_freespace(struct fdisk_context *cxt) |
| | 841 | { |
| | 842 | struct fdisk_partition *pa = NULL; |
| | 843 | struct fdisk_table *tb = NULL; |
| | 844 | size_t best = 0; |
| | 845 | uintmax_t n = 0; |
| | 846 | int ct; |
| | 847 | |
| | 848 | ct = list_freespace_get_table(cxt, &tb, &best); |
| | 849 | if (ct <= 0) { |
| | 850 | fdisk_info(cxt, _("No free space.")); |
| | 851 | goto done; |
| | 852 | } |
| | 853 | fdisk_info(cxt, _("\nThe unused sectors will be immediately discarded.\n" |
| | 854 | "You can exit this dialog by pressing CTRL+C.\n")); |
| | 855 | |
| | 856 | if (fdisk_ask_number(cxt, 1, best + 1, (uintmax_t) ct, |
| | 857 | _("Free space number"), &n) != 0) |
| | 858 | goto done; |
| | 859 | |
| | 860 | pa = fdisk_table_get_partition(tb, n - 1); |
| | 861 | if (!pa) |
| | 862 | goto done; |
| | 863 | |
| | 864 | if (!fdisk_partition_has_size(pa) || !fdisk_partition_has_start(pa)) { |
| | 865 | fdisk_warnx(cxt, _("Free space %"PRIu64 "has an unspecified range"), n); |
| | 866 | goto done; |
| | 867 | } |
| | 868 | |
| | 869 | if (do_discard(cxt, pa) == 0) |
| | 870 | fdisk_info(cxt, _("Discarded sectors on free space.")); |
| | 871 | done: |
| | 872 | fdisk_unref_table(tb); |
| | 873 | } |
| | 874 | |
| | 875 | void discard_sectors(struct fdisk_context *cxt) |
| | 876 | { |
| | 877 | int c; |
| | 878 | |
| | 879 | if (fdisk_is_readonly(cxt)) { |
| | 880 | fdisk_warnx(cxt, _("Discarding sectors is not possible in read-only mode.")); |
| | 881 | return; |
| | 882 | } |
| | 883 | |
| | 884 | if (fdisk_ask_menu(cxt, _("Type of area to be discarded"), |
| | 885 | &c, 'p', _("partition sectors"), 'p', |
| | 886 | _("free space sectors"), 'f', NULL) != 0) |
| | 887 | return; |
| | 888 | |
| | 889 | switch (c) { |
| | 890 | case 'p': |
| | 891 | discard_partition(cxt); |
| | 892 | break; |
| | 893 | case 'f': |
| | 894 | discard_freespace(cxt); |
| | 895 | break; |
| | 896 | } |
| | 897 | } |
| | 898 | |
| | 899 | #else /* !BLKDISCARD */ |
| | 900 | void discard_sectors(struct fdisk_context *cxt) |
| | 901 | { |
| | 902 | fdisk_warnx(cxt, _("Discard unsupported on your system.")); |
| | 903 | } |
| | 904 | #endif /* BLKDISCARD */ |
| | 905 | |
| | 906 | int print_partition_info(struct fdisk_context *cxt) |
| | 907 | { |
| | 908 | struct fdisk_partition *pa = NULL; |
| | 909 | int rc = 0; |
| | 910 | size_t i, nfields; |
| | 911 | int *fields = NULL; |
| | 912 | struct fdisk_label *lb = fdisk_get_label(cxt, NULL); |
| | 913 | |
| | 914 | if ((rc = fdisk_ask_partnum(cxt, &i, FALSE))) |
| | 915 | return rc; |
| | 916 | |
| | 917 | if ((rc = fdisk_get_partition(cxt, i, &pa))) { |
| | 918 | fdisk_warnx(cxt, _("Partition %zu does not exist yet!"), i + 1); |
| | 919 | return rc; |
| | 920 | } |
| | 921 | |
| | 922 | if ((rc = fdisk_label_get_fields_ids_all(lb, cxt, &fields, &nfields))) |
| | 923 | goto clean_data; |
| | 924 | |
| | 925 | for (i = 0; i < nfields; ++i) { |
| | 926 | int id = fields[i]; |
| | 927 | char *data = NULL; |
| | 928 | const struct fdisk_field *fd = fdisk_label_get_field(lb, id); |
| | 929 | |
| | 930 | if (!fd) |
| | 931 | continue; |
| | 932 | |
| | 933 | rc = fdisk_partition_to_string(pa, cxt, id, &data); |
| | 934 | if (rc < 0) |
| | 935 | goto clean_data; |
| | 936 | if (!data || !*data) |
| | 937 | continue; |
| | 938 | fdisk_info(cxt, "%15s: %s", fdisk_field_get_name(fd), data); |
| | 939 | free(data); |
| | 940 | } |
| | 941 | |
| | 942 | clean_data: |
| | 943 | fdisk_unref_partition(pa); |
| | 944 | free(fields); |
| | 945 | return rc; |
| | 946 | } |
| | 947 | |
| | 948 | static size_t skip_empty(const unsigned char *buf, size_t i, size_t sz) |
| | 949 | { |
| | 950 | size_t next; |
| | 951 | const unsigned char *p0 = buf + i; |
| | 952 | |
| | 953 | for (next = i + 16; next < sz; next += 16) { |
| | 954 | if (memcmp(p0, buf + next, 16) != 0) |
| | 955 | break; |
| | 956 | } |
| | 957 | |
| | 958 | return next == i + 16 ? i : next; |
| | 959 | } |
| | 960 | |
| | 961 | static void dump_buffer(off_t base, unsigned char *buf, size_t sz) |
| | 962 | { |
| | 963 | size_t i, l, next = 0; |
| | 964 | |
| | 965 | if (!buf) |
| | 966 | return; |
| | 967 | for (i = 0, l = 0; i < sz; i++, l++) { |
| | 968 | if (l == 0) { |
| | 969 | if (!next) |
| | 970 | next = skip_empty(buf, i, sz); |
| | 971 | printf("%08jx ", (intmax_t)base + i); |
| | 972 | } |
| | 973 | printf(" %02x", buf[i]); |
| | 974 | if (l == 7) /* words separator */ |
| | 975 | fputs(" ", stdout); |
| | 976 | else if (l == 15) { |
| | 977 | fputc('\n', stdout); /* next line */ |
| | 978 | l = -1; |
| | 979 | if (next > i) { |
| | 980 | printf("*\n"); |
| | 981 | i = next - 1; |
| | 982 | } |
| | 983 | next = 0; |
| | 984 | } |
| | 985 | } |
| | 986 | if (l > 0) |
| | 987 | printf("\n"); |
| | 988 | } |
| | 989 | |
| | 990 | static void dump_blkdev(struct fdisk_context *cxt, const char *name, |
| | 991 | uint64_t offset, size_t size) |
| | 992 | { |
| | 993 | int fd = fdisk_get_devfd(cxt); |
| | 994 | |
| | 995 | fdisk_info(cxt, _("\n%s: offset = %"PRIu64", size = %zu bytes."), |
| | 996 | name, offset, size); |
| | 997 | |
| | 998 | assert(fd >= 0); |
| | 999 | |
| | 1000 | if (lseek(fd, (off_t) offset, SEEK_SET) == (off_t) -1) |
| | 1001 | fdisk_warn(cxt, _("cannot seek")); |
| | 1002 | else { |
| | 1003 | unsigned char *buf = xmalloc(size); |
| | 1004 | |
| | 1005 | if (read_all(fd, (char *) buf, size) != (ssize_t) size) |
| | 1006 | fdisk_warn(cxt, _("cannot read")); |
| | 1007 | else |
| | 1008 | dump_buffer(offset, buf, size); |
| | 1009 | free(buf); |
| | 1010 | } |
| | 1011 | } |
| | 1012 | |
| | 1013 | void dump_firstsector(struct fdisk_context *cxt) |
| | 1014 | { |
| | 1015 | assert(cxt); |
| | 1016 | |
| | 1017 | dump_blkdev(cxt, _("First sector"), 0, fdisk_get_sector_size(cxt)); |
| | 1018 | } |
| | 1019 | |
| | 1020 | void dump_disklabel(struct fdisk_context *cxt) |
| | 1021 | { |
| | 1022 | int i = 0; |
| | 1023 | const char *name = NULL; |
| | 1024 | uint64_t offset = 0; |
| | 1025 | size_t size = 0; |
| | 1026 | |
| | 1027 | assert(cxt); |
| | 1028 | |
| | 1029 | while (fdisk_locate_disklabel(cxt, i++, &name, &offset, &size) == 0 && size) |
| | 1030 | dump_blkdev(cxt, name, offset, size); |
| | 1031 | } |
| | 1032 | |
| | 1033 | static fdisk_sector_t get_dev_blocks(char *dev) |
| | 1034 | { |
| | 1035 | int fd, ret; |
| | 1036 | fdisk_sector_t size; |
| | 1037 | |
| | 1038 | if ((fd = open(dev, O_RDONLY|O_NONBLOCK)) < 0) |
| | 1039 | err(EXIT_FAILURE, _("cannot open %s"), dev); |
| | 1040 | ret = blkdev_get_sectors(fd, (unsigned long long *) &size); |
| | 1041 | close(fd); |
| | 1042 | if (ret < 0) |
| | 1043 | err(EXIT_FAILURE, _("BLKGETSIZE ioctl failed on %s"), dev); |
| | 1044 | return size/2; |
| | 1045 | } |
| | 1046 | |
| | 1047 | |
| | 1048 | void follow_wipe_mode(struct fdisk_context *cxt) |
| | 1049 | { |
| | 1050 | int dowipe = wipemode == WIPEMODE_ALWAYS ? 1 : 0; |
| | 1051 | |
| | 1052 | if (isatty(STDIN_FILENO) && wipemode == WIPEMODE_AUTO) |
| | 1053 | dowipe = 1; /* do it in interactive mode */ |
| | 1054 | |
| | 1055 | if (fdisk_is_ptcollision(cxt) && wipemode != WIPEMODE_NEVER) |
| | 1056 | dowipe = 1; /* always remove old PT */ |
| | 1057 | |
| | 1058 | fdisk_enable_wipe(cxt, dowipe); |
| | 1059 | if (dowipe) |
| | 1060 | fdisk_warnx(cxt, _( |
| | 1061 | "The device contains '%s' signature and it will be removed by a write command. " |
| | 1062 | "See fdisk(8) man page and --wipe option for more details."), |
| | 1063 | fdisk_get_collision(cxt)); |
| | 1064 | else |
| | 1065 | fdisk_warnx(cxt, _( |
| | 1066 | "The device contains '%s' signature and it may remain on the device. " |
| | 1067 | "It is recommended to wipe the device with wipefs(8) or " |
| | 1068 | "fdisk --wipe, in order to avoid possible collisions."), |
| | 1069 | fdisk_get_collision(cxt)); |
| | 1070 | } |
| | 1071 | |
| | 1072 | static void __attribute__((__noreturn__)) usage(void) |
| | 1073 | { |
| | 1074 | FILE *out = stdout; |
| | 1075 | |
| | 1076 | fputs(USAGE_HEADER, out); |
| | 1077 | |
| | 1078 | fprintf(out, |
| | 1079 | _(" %1$s [options] <disk> change partition table\n" |
| | 1080 | " %1$s [options] -l [<disk>...] list partition table(s)\n"), |
| | 1081 | program_invocation_short_name); |
| | 1082 | |
| | 1083 | fputs(USAGE_SEPARATOR, out); |
| | 1084 | fputs(_("Display or manipulate a disk partition table.\n"), out); |
| | 1085 | |
| | 1086 | fputs(USAGE_OPTIONS, out); |
| | 1087 | fputs(_(" -b, --sector-size <size> physical and logical sector size\n"), out); |
| | 1088 | fputs(_(" -B, --protect-boot don't erase bootbits when creating a new label\n"), out); |
| | 1089 | fputs(_(" -c, --compatibility[=<mode>] mode is 'dos' or 'nondos' (default)\n"), out); |
| | 1090 | fprintf(out, |
| | 1091 | _(" -L, --color[=<when>] colorize output (%s, %s or %s)\n"), "auto", "always", "never"); |
| | 1092 | fprintf(out, |
| | 1093 | " %s\n", USAGE_COLORS_DEFAULT); |
| | 1094 | fputs(_(" -l, --list display partitions and exit\n"), out); |
| | 1095 | fputs(_(" -x, --list-details like --list but with more details\n"), out); |
| | 1096 | |
| | 1097 | fputs(_(" -n, --noauto-pt don't create default partition table on empty devices\n"), out); |
| | 1098 | fputs(_(" -o, --output <list> output columns\n"), out); |
| | 1099 | fputs(_(" -t, --type <type> recognize specified partition table type only\n"), out); |
| | 1100 | fputs(_(" -u, --units[=<unit>] display units: 'cylinders' or 'sectors' (default)\n"), out); |
| | 1101 | fputs(_(" -s, --getsz display device size in 512-byte sectors [DEPRECATED]\n"), out); |
| | 1102 | fputs(_(" --bytes print SIZE in bytes rather than in human readable format\n"), out); |
| | 1103 | fprintf(out, |
| | 1104 | _(" --lock[=<mode>] use exclusive device lock (%s, %s or %s)\n"), "yes", "no", "nonblock"); |
| | 1105 | fprintf(out, |
| | 1106 | _(" -w, --wipe <mode> wipe signatures (%s, %s or %s)\n"), "auto", "always", "never"); |
| | 1107 | fprintf(out, |
| | 1108 | _(" -W, --wipe-partitions <mode> wipe signatures from new partitions (%s, %s or %s)\n"), "auto", "always", "never"); |
| | 1109 | |
| | 1110 | fputs(USAGE_SEPARATOR, out); |
| | 1111 | fputs(_(" -C, --cylinders <number> specify the number of cylinders\n"), out); |
| | 1112 | fputs(_(" -H, --heads <number> specify the number of heads\n"), out); |
| | 1113 | fputs(_(" -S, --sectors <number> specify the number of sectors per track\n"), out); |
| | 1114 | |
| | 1115 | fputs(USAGE_SEPARATOR, out); |
| | 1116 | fprintf(out, USAGE_HELP_OPTIONS(31)); |
| | 1117 | |
| | 1118 | list_available_columns(out); |
| | 1119 | |
| | 1120 | fprintf(out, USAGE_MAN_TAIL("fdisk(8)")); |
| | 1121 | exit(EXIT_SUCCESS); |
| | 1122 | } |
| | 1123 | |
| | 1124 | |
| | 1125 | enum { |
| | 1126 | ACT_FDISK = 0, /* default */ |
| | 1127 | ACT_LIST, |
| | 1128 | ACT_LIST_DETAILS, |
| | 1129 | ACT_SHOWSIZE |
| | 1130 | }; |
| | 1131 | |
| | 1132 | int main(int argc, char **argv) |
| | 1133 | { |
| | 1134 | int rc, i, c, act = ACT_FDISK, noauto_pt = 0; |
| | 1135 | int colormode = UL_COLORMODE_UNDEF; |
| | 1136 | struct fdisk_context *cxt; |
| | 1137 | char *outarg = NULL; |
| | 1138 | const char *devname, *lockmode = NULL; |
| | 1139 | enum { |
| | 1140 | OPT_BYTES = CHAR_MAX + 1, |
| | 1141 | OPT_LOCK |
| | 1142 | }; |
| | 1143 | static const struct option longopts[] = { |
| | 1144 | { "bytes", no_argument, NULL, OPT_BYTES }, |
| | 1145 | { "color", optional_argument, NULL, 'L' }, |
| | 1146 | { "compatibility", optional_argument, NULL, 'c' }, |
| | 1147 | { "cylinders", required_argument, NULL, 'C' }, |
| | 1148 | { "heads", required_argument, NULL, 'H' }, |
| | 1149 | { "sectors", required_argument, NULL, 'S' }, |
| | 1150 | { "getsz", no_argument, NULL, 's' }, |
| | 1151 | { "help", no_argument, NULL, 'h' }, |
| | 1152 | { "list", no_argument, NULL, 'l' }, |
| | 1153 | { "list-details", no_argument, NULL, 'x' }, |
| | 1154 | { "lock", optional_argument, NULL, OPT_LOCK }, |
| | 1155 | { "noauto-pt", no_argument, NULL, 'n' }, |
| | 1156 | { "sector-size", required_argument, NULL, 'b' }, |
| | 1157 | { "type", required_argument, NULL, 't' }, |
| | 1158 | { "units", optional_argument, NULL, 'u' }, |
| | 1159 | { "version", no_argument, NULL, 'V' }, |
| | 1160 | { "output", required_argument, NULL, 'o' }, |
| | 1161 | { "protect-boot", no_argument, NULL, 'B' }, |
| | 1162 | { "wipe", required_argument, NULL, 'w' }, |
| | 1163 | { "wipe-partitions",required_argument, NULL, 'W' }, |
| | 1164 | { NULL, 0, NULL, 0 } |
| | 1165 | }; |
| | 1166 | |
| | 1167 | setlocale(LC_ALL, ""); |
| | 1168 | bindtextdomain(PACKAGE, LOCALEDIR); |
| | 1169 | textdomain(PACKAGE); |
| | 1170 | close_stdout_atexit(); |
| | 1171 | |
| | 1172 | fdisk_init_debug(0); |
| | 1173 | scols_init_debug(0); |
| | 1174 | fdiskprog_init_debug(); |
| | 1175 | |
| | 1176 | cxt = fdisk_new_context(); |
| | 1177 | if (!cxt) |
| | 1178 | err(EXIT_FAILURE, _("failed to allocate libfdisk context")); |
| | 1179 | |
| | 1180 | fdisk_set_ask(cxt, ask_callback, NULL); |
| | 1181 | |
| | 1182 | while ((c = getopt_long(argc, argv, "b:Bc::C:hH:lL::no:sS:t:u::vVw:W:x", |
| | 1183 | longopts, NULL)) != -1) { |
| | 1184 | switch (c) { |
| | 1185 | case 'b': |
| | 1186 | { |
| | 1187 | size_t sz = strtou32_or_err(optarg, |
| | 1188 | _("invalid sector size argument")); |
| | 1189 | if (sz != 512 && sz != 1024 && sz != 2048 && sz != 4096) |
| | 1190 | errx(EXIT_FAILURE, _("invalid sector size argument")); |
| | 1191 | fdisk_save_user_sector_size(cxt, sz, sz); |
| | 1192 | break; |
| | 1193 | } |
| | 1194 | case 'B': |
| | 1195 | fdisk_enable_bootbits_protection(cxt, 1); |
| | 1196 | break; |
| | 1197 | case 'C': |
| | 1198 | fdisk_save_user_geometry(cxt, |
| | 1199 | strtou32_or_err(optarg, |
| | 1200 | _("invalid cylinders argument")), |
| | 1201 | 0, 0); |
| | 1202 | break; |
| | 1203 | case 'c': |
| | 1204 | if (optarg) { |
| | 1205 | /* this setting is independent on the current |
| | 1206 | * actively used label |
| | 1207 | */ |
| | 1208 | char *p = *optarg == '=' ? optarg + 1 : optarg; |
| | 1209 | struct fdisk_label *lb = fdisk_get_label(cxt, "dos"); |
| | 1210 | |
| | 1211 | if (!lb) |
| | 1212 | err(EXIT_FAILURE, _("not found DOS label driver")); |
| | 1213 | if (strcmp(p, "dos") == 0) |
| | 1214 | fdisk_dos_enable_compatible(lb, TRUE); |
| | 1215 | else if (strcmp(p, "nondos") == 0) |
| | 1216 | fdisk_dos_enable_compatible(lb, FALSE); |
| | 1217 | else |
| | 1218 | errx(EXIT_FAILURE, _("unknown compatibility mode '%s'"), p); |
| | 1219 | } |
| | 1220 | /* use default if no optarg specified */ |
| | 1221 | break; |
| | 1222 | case 'H': |
| | 1223 | fdisk_save_user_geometry(cxt, 0, |
| | 1224 | strtou32_or_err(optarg, |
| | 1225 | _("invalid heads argument")), |
| | 1226 | 0); |
| | 1227 | break; |
| | 1228 | case 'S': |
| | 1229 | fdisk_save_user_geometry(cxt, 0, 0, |
| | 1230 | strtou32_or_err(optarg, |
| | 1231 | _("invalid sectors argument"))); |
| | 1232 | break; |
| | 1233 | case 'l': |
| | 1234 | act = ACT_LIST; |
| | 1235 | break; |
| | 1236 | case 'x': |
| | 1237 | act = ACT_LIST_DETAILS; |
| | 1238 | break; |
| | 1239 | case 'L': |
| | 1240 | colormode = UL_COLORMODE_AUTO; |
| | 1241 | if (optarg) |
| | 1242 | colormode = colormode_or_err(optarg); |
| | 1243 | break; |
| | 1244 | case 'n': |
| | 1245 | noauto_pt = 1; |
| | 1246 | break; |
| | 1247 | case 'o': |
| | 1248 | outarg = optarg; |
| | 1249 | break; |
| | 1250 | case 's': |
| | 1251 | act = ACT_SHOWSIZE; |
| | 1252 | break; |
| | 1253 | case 't': |
| | 1254 | { |
| | 1255 | struct fdisk_label *lb = NULL; |
| | 1256 | |
| | 1257 | while (fdisk_next_label(cxt, &lb) == 0) |
| | 1258 | fdisk_label_set_disabled(lb, 1); |
| | 1259 | |
| | 1260 | lb = fdisk_get_label(cxt, optarg); |
| | 1261 | if (!lb) |
| | 1262 | errx(EXIT_FAILURE, _("unsupported disklabel: %s"), optarg); |
| | 1263 | fdisk_label_set_disabled(lb, 0); |
| | 1264 | break; |
| | 1265 | } |
| | 1266 | case 'u': |
| | 1267 | if (optarg && *optarg == '=') |
| | 1268 | optarg++; |
| | 1269 | if (fdisk_set_unit(cxt, optarg) != 0) |
| | 1270 | errx(EXIT_FAILURE, _("unsupported unit")); |
| | 1271 | break; |
| | 1272 | case 'V': /* preferred for util-linux */ |
| | 1273 | case 'v': /* for backward compatibility only */ |
| | 1274 | print_version(EXIT_SUCCESS); |
| | 1275 | case 'w': |
| | 1276 | wipemode = wipemode_from_string(optarg); |
| | 1277 | if (wipemode < 0) |
| | 1278 | errx(EXIT_FAILURE, _("unsupported wipe mode")); |
| | 1279 | break; |
| | 1280 | case 'W': |
| | 1281 | pwipemode = wipemode_from_string(optarg); |
| | 1282 | if (pwipemode < 0) |
| | 1283 | errx(EXIT_FAILURE, _("unsupported wipe mode")); |
| | 1284 | break; |
| | 1285 | case 'h': |
| | 1286 | usage(); |
| | 1287 | case OPT_BYTES: |
| | 1288 | fdisk_set_size_unit(cxt, FDISK_SIZEUNIT_BYTES); |
| | 1289 | break; |
| | 1290 | case OPT_LOCK: |
| | 1291 | lockmode = "1"; |
| | 1292 | if (optarg) { |
| | 1293 | if (*optarg == '=') |
| | 1294 | optarg++; |
| | 1295 | lockmode = optarg; |
| | 1296 | } |
| | 1297 | break; |
| | 1298 | default: |
| | 1299 | errtryhelp(EXIT_FAILURE); |
| | 1300 | } |
| | 1301 | } |
| | 1302 | |
| | 1303 | if (argc-optind != 1 && fdisk_has_user_device_properties(cxt)) |
| | 1304 | warnx(_("The device properties (sector size and geometry) should" |
| | 1305 | " be used with one specified device only.")); |
| | 1306 | |
| | 1307 | colors_init(colormode, "fdisk"); |
| | 1308 | is_interactive = isatty(STDIN_FILENO); |
| | 1309 | |
| | 1310 | switch (act) { |
| | 1311 | case ACT_LIST: |
| | 1312 | case ACT_LIST_DETAILS: |
| | 1313 | fdisk_enable_listonly(cxt, 1); |
| | 1314 | |
| | 1315 | if (act == ACT_LIST_DETAILS) |
| | 1316 | fdisk_enable_details(cxt, 1); |
| | 1317 | |
| | 1318 | init_fields(cxt, outarg, NULL); |
| | 1319 | |
| | 1320 | if (argc > optind) { |
| | 1321 | int k; |
| | 1322 | |
| | 1323 | for (rc = 0, k = optind; k < argc; k++) |
| | 1324 | rc += print_device_pt(cxt, argv[k], 1, 0, k != optind); |
| | 1325 | |
| | 1326 | if (rc) |
| | 1327 | return EXIT_FAILURE; |
| | 1328 | } else |
| | 1329 | print_all_devices_pt(cxt, 0); |
| | 1330 | break; |
| | 1331 | |
| | 1332 | case ACT_SHOWSIZE: |
| | 1333 | /* deprecated */ |
| | 1334 | if (argc - optind <= 0) { |
| | 1335 | warnx(_("bad usage")); |
| | 1336 | errtryhelp(EXIT_FAILURE); |
| | 1337 | } |
| | 1338 | for (i = optind; i < argc; i++) { |
| | 1339 | uintmax_t blks = get_dev_blocks(argv[i]); |
| | 1340 | |
| | 1341 | if (argc - optind == 1) |
| | 1342 | printf("%ju\n", blks); |
| | 1343 | else |
| | 1344 | printf("%s: %ju\n", argv[i], blks); |
| | 1345 | } |
| | 1346 | break; |
| | 1347 | |
| | 1348 | case ACT_FDISK: |
| | 1349 | if (argc-optind != 1) { |
| | 1350 | warnx(_("bad usage")); |
| | 1351 | errtryhelp(EXIT_FAILURE); |
| | 1352 | } |
| | 1353 | |
| | 1354 | /* Here starts interactive mode, use fdisk_{warn,info,..} functions */ |
| | 1355 | color_scheme_enable("welcome", UL_COLOR_GREEN); |
| | 1356 | fdisk_info(cxt, _("Welcome to fdisk (%s)."), PACKAGE_STRING); |
| | 1357 | color_disable(); |
| | 1358 | fdisk_info(cxt, _("Changes will remain in memory only, until you decide to write them.\n" |
| | 1359 | "Be careful before using the write command.\n")); |
| | 1360 | |
| | 1361 | devname = argv[optind]; |
| | 1362 | rc = fdisk_assign_device(cxt, devname, 0); |
| | 1363 | if (rc == -EACCES) { |
| | 1364 | rc = fdisk_assign_device(cxt, devname, 1); |
| | 1365 | if (rc == 0) |
| | 1366 | fdisk_warnx(cxt, _("Device is open in read-only mode.")); |
| | 1367 | } |
| | 1368 | if (rc) |
| | 1369 | err(EXIT_FAILURE, _("cannot open %s"), devname); |
| | 1370 | |
| | 1371 | if (fdisk_device_is_used(cxt)) |
| | 1372 | fdisk_warnx(cxt, _( |
| | 1373 | "This disk is currently in use - repartitioning is probably a bad idea.\n" |
| | 1374 | "It's recommended to umount all file systems, and swapoff all swap\n" |
| | 1375 | "partitions on this disk.\n")); |
| | 1376 | |
| | 1377 | fflush(stdout); |
| | 1378 | |
| | 1379 | if (!fdisk_is_readonly(cxt) |
| | 1380 | && blkdev_lock(fdisk_get_devfd(cxt), devname, lockmode) != 0) { |
| | 1381 | fdisk_deassign_device(cxt, 1); |
| | 1382 | fdisk_unref_context(cxt); |
| | 1383 | return EXIT_FAILURE; |
| | 1384 | } |
| | 1385 | |
| | 1386 | if (fdisk_get_collision(cxt)) |
| | 1387 | follow_wipe_mode(cxt); |
| | 1388 | |
| | 1389 | if (!fdisk_has_label(cxt)) { |
| | 1390 | fdisk_info(cxt, _("Device does not contain a recognized partition table.")); |
| | 1391 | if (!noauto_pt) |
| | 1392 | fdisk_create_disklabel(cxt, NULL); |
| | 1393 | |
| | 1394 | } else if (fdisk_is_label(cxt, GPT) && fdisk_gpt_is_hybrid(cxt)) |
| | 1395 | fdisk_warnx(cxt, _( |
| | 1396 | "A hybrid GPT was detected. You have to sync " |
| | 1397 | "the hybrid MBR manually (expert command 'M').")); |
| | 1398 | |
| | 1399 | init_fields(cxt, outarg, NULL); /* -o <columns> */ |
| | 1400 | |
| | 1401 | if (!fdisk_is_readonly(cxt)) { |
| | 1402 | fdisk_get_partitions(cxt, &original_layout); |
| | 1403 | device_is_used = fdisk_device_is_used(cxt); |
| | 1404 | } |
| | 1405 | |
| | 1406 | while (1) |
| | 1407 | process_fdisk_menu(&cxt); |
| | 1408 | } |
| | 1409 | |
| | 1410 | fdisk_unref_context(cxt); |
| | 1411 | return EXIT_SUCCESS; |
| | 1412 | } |
projects / thirdparty / util-linux.git / blame_incremental