wimlib.net Git - wimlib/blob - programs/imagex.c

   1 /*
   2  * imagex.c
   3  *
   4  * Use wimlib to create, modify, extract, mount, unmount, or display information
   5  * about a WIM file
   6  */
   7
   8 /*
   9  * Copyright (C) 2012 Eric Biggers
  10  *
  11  * This program is free software: you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation, either version 3 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 #include "wimlib.h"
  26 #include "config.h"
  27 #include <getopt.h>
  28 #include <stdlib.h>
  29 #include <stdarg.h>
  30 #include <glob.h>
  31 #include <string.h>
  32 #include <errno.h>
  33 #include <libgen.h>
  34 #include <sys/stat.h>
  35 #include <unistd.h>
  36
  37 #define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
  38
  39 #define for_opt(c, opts) while ((c = getopt_long_only(argc, (char**)argv, "", \
  40                                 opts, NULL)) != -1)
  41
  42
  43 enum imagex_op_type {
  44         APPEND,
  45         APPLY,
  46         CAPTURE,
  47         DELETE,
  48         DIR,
  49         EXPORT,
  50         INFO,
  51         JOIN,
  52         MOUNT,
  53         MOUNTRW,
  54         SPLIT,
  55         UNMOUNT,
  56 };
  57
  58 static void usage(int cmd_type);
  59 static void usage_all();
  60
  61 static const char *usage_strings[] = {
  62 [APPEND] =
  63 "imagex append (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  64 "                     [DESCRIPTION] [--boot] [--check] [--flags EDITION_ID]\n"
  65 "                     [--verbose] [--dereference] [--config=FILE]\n",
  66 [APPLY] =
  67 "imagex apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all]\n"
  68 "                    (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
  69 "                    [--symlink] [--verbose] [--ref=\"GLOB\"]\n",
  70 [CAPTURE] =
  71 "imagex capture (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  72 "                      [DESCRIPTION] [--boot] [--check] [--compress=TYPE]\n"
  73 "                      [--flags EDITION_ID] [--verbose] [--dereference]\n"
  74 "                   [--config=FILE]\n",
  75 [DELETE] =
  76 "imagex delete WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check]\n",
  77 [DIR] =
  78 "imagex dir WIMFILE (IMAGE_NUM | IMAGE_NAME | all)\n",
  79 [EXPORT] =
  80 "imagex export SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
  81 "                     DEST_WIMFILE [DEST_IMAGE_NAME]\n"
  82 "                     [DEST_IMAGE_DESCRIPTION] [--boot] [--check]\n"
  83 "                     [--compress=TYPE] [--ref=\"GLOB\"]\n",
  84 [INFO] =
  85 "imagex info WIMFILE [IMAGE_NUM | IMAGE_NAME] [NEW_NAME]\n"
  86 "                   [NEW_DESC] [--boot] [--check] [--header] [--lookup-table]\n"
  87 "                   [--xml] [--extract-xml FILE] [--metadata]\n",
  88 [JOIN] =
  89 "imagex join [--check] WIMFILE SPLIT_WIM...\n",
  90 [MOUNT] =
  91 "imagex mount WIMFILE (IMAGE_NUM | IMAGE_NAME) DIRECTORY\n"
  92 "                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
  93 "                    [--ref=\"GLOB\"]\n",
  94 [MOUNTRW] =
  95 "imagex mountrw WIMFILE [IMAGE_NUM | IMAGE_NAME] DIRECTORY\n"
  96 "                      [--check] [--debug] [--streams-interface=INTERFACE]\n",
  97 [SPLIT] =
  98 "imagex split WIMFILE SPLIT_WIMFILE PART_SIZE_MB [--check]\n",
  99 [UNMOUNT] =
 100 "imagex unmount DIRECTORY [--commit] [--check]\n",
 101 };
 102
 103 static const struct option common_options[] = {
 104         {"help", 0, NULL, 'h'},
 105         {"version", 0, NULL, 'v'},
 106         {NULL, 0, NULL, 0},
 107 };
 108
 109 static const struct option apply_options[] = {
 110         {"check",    no_argument,       NULL, 'c'},
 111         {"hardlink", no_argument,       NULL, 'h'},
 112         {"symlink",  no_argument,       NULL, 's'},
 113         {"verbose",  no_argument,       NULL, 'v'},
 114         {"ref",      required_argument, NULL, 'r'},
 115         {NULL, 0, NULL, 0},
 116 };
 117 static const struct option capture_or_append_options[] = {
 118         {"boot",        no_argument,       NULL, 'b'},
 119         {"check",       no_argument,       NULL, 'c'},
 120         {"compress",    required_argument, NULL, 'x'},
 121         {"config",      required_argument, NULL, 'C'},
 122         {"dereference", no_argument,       NULL, 'L'},
 123         {"flags",       required_argument, NULL, 'f'},
 124         {"verbose",     no_argument,       NULL, 'v'},
 125         {NULL, 0, NULL, 0},
 126 };
 127 static const struct option delete_options[] = {
 128         {"check", no_argument, NULL, 'c'},
 129         {NULL, 0, NULL, 0},
 130 };
 131
 132 static const struct option export_options[] = {
 133         {"boot",       no_argument,       NULL, 'b'},
 134         {"check",      no_argument,       NULL, 'c'},
 135         {"compress",   required_argument, NULL, 'x'},
 136         {"ref",        required_argument, NULL, 'r'},
 137         {NULL, 0, NULL, 0},
 138 };
 139
 140 static const struct option info_options[] = {
 141         {"boot",         no_argument, NULL, 'b'},
 142         {"check",        no_argument, NULL, 'c'},
 143         {"extract-xml",  required_argument, NULL, 'X'},
 144         {"header",       no_argument, NULL, 'h'},
 145         {"lookup-table", no_argument, NULL, 'l'},
 146         {"metadata",     no_argument, NULL, 'm'},
 147         {"xml",          no_argument, NULL, 'x'},
 148         {NULL, 0, NULL, 0},
 149 };
 150
 151 static const struct option join_options[] = {
 152         {"check", no_argument, NULL, 'c'},
 153         {NULL, 0, NULL, 0},
 154 };
 155
 156 static const struct option mount_options[] = {
 157         {"check", no_argument, NULL, 'c'},
 158         {"debug", no_argument, NULL, 'd'},
 159         {"streams-interface", required_argument, NULL, 's'},
 160         {"ref",      required_argument, NULL, 'r'},
 161         {NULL, 0, NULL, 0},
 162 };
 163
 164 static const struct option split_options[] = {
 165         {"check", no_argument, NULL, 'c'},
 166         {NULL, 0, NULL, 0},
 167 };
 168
 169 static const struct option unmount_options[] = {
 170         {"commit", no_argument, NULL, 'c'},
 171         {"check", no_argument, NULL, 'C'},
 172         {NULL, 0, NULL, 0},
 173 };
 174
 175
 176
 177 /* Print formatted error message to stderr. */
 178 static void imagex_error(const char *format, ...)
 179 {
 180         va_list va;
 181         va_start(va, format);
 182         fputs("ERROR: ", stderr);
 183         vfprintf(stderr, format, va);
 184         putc('\n', stderr);
 185         va_end(va);
 186 }
 187
 188 /* Print formatted error message to stderr. */
 189 static void imagex_error_with_errno(const char *format, ...)
 190 {
 191         int errno_save = errno;
 192         va_list va;
 193         va_start(va, format);
 194         fputs("ERROR: ", stderr);
 195         vfprintf(stderr, format, va);
 196         fprintf(stderr, ": %s\n", strerror(errno_save));
 197         va_end(va);
 198 }
 199
 200 static int verify_image_exists(int image, const char *image_name,
 201                                const char *wim_name)
 202 {
 203         if (image == WIM_NO_IMAGE) {
 204                 imagex_error("\"%s\" is not a valid image in `%s'!\n"
 205                              "       Please specify a 1-based imagex index or "
 206                              "image name.\n"
 207                              "       You may use `imagex info' to list the images "
 208                              "contained in a WIM.",
 209                              image_name, wim_name);
 210                 return -1;
 211         }
 212         return 0;
 213 }
 214
 215 static int verify_image_is_single(int image)
 216 {
 217         if (image == WIM_ALL_IMAGES) {
 218                 imagex_error("Cannot specify all images for this action!");
 219                 return -1;
 220         }
 221         return 0;
 222 }
 223
 224 static int verify_image_exists_and_is_single(int image, const char *image_name,
 225                                              const char *wim_name)
 226 {
 227         int ret;
 228         ret = verify_image_exists(image, image_name, wim_name);
 229         if (ret == 0)
 230                 ret = verify_image_is_single(image);
 231         return ret;
 232 }
 233
 234 static int get_compression_type(const char *optarg)
 235 {
 236         if (strcasecmp(optarg, "maximum") == 0 || strcasecmp(optarg, "lzx") == 0)
 237                 return WIM_COMPRESSION_TYPE_LZX;
 238         else if (strcasecmp(optarg, "fast") == 0 || strcasecmp(optarg, "xpress") == 0)
 239                 return WIM_COMPRESSION_TYPE_XPRESS;
 240         else if (strcasecmp(optarg, "none") == 0)
 241                 return WIM_COMPRESSION_TYPE_NONE;
 242         else {
 243                 imagex_error("Invalid compression type `%s'! Must be "
 244                              "\"maximum\", \"fast\", or \"none\".", optarg);
 245                 return WIM_COMPRESSION_TYPE_INVALID;
 246         }
 247 }
 248
 249 static char *file_get_contents(const char *filename, size_t *len_ret)
 250 {
 251         struct stat stbuf;
 252         char *buf;
 253         size_t len;
 254         FILE *fp;
 255
 256         if (stat(filename, &stbuf) != 0) {
 257                 imagex_error_with_errno("Failed to stat the file `%s'", filename);
 258                 return NULL;
 259         }
 260         len = stbuf.st_size;
 261
 262         fp = fopen(filename, "rb");
 263         if (!fp) {
 264                 imagex_error_with_errno("Failed to open the file `%s'", filename);
 265                 return NULL;
 266         }
 267
 268         buf = malloc(len);
 269         if (!buf) {
 270                 imagex_error("Failed to allocate buffer of %zu bytes to hold "
 271                              "contents of file `%s'", len, filename);
 272                 goto out_fclose;
 273         }
 274         if (fread(buf, 1, len, fp) != len) {
 275                 imagex_error_with_errno("Failed to read %lu bytes from the "
 276                                         "file `%s'", len, filename);
 277                 goto out_free_buf;
 278         }
 279         *len_ret = len;
 280         return buf;
 281 out_free_buf:
 282         free(buf);
 283 out_fclose:
 284         fclose(fp);
 285         return NULL;
 286 }
 287
 288 static int file_writable(const char *path)
 289 {
 290         int ret;
 291         ret = access(path, F_OK | W_OK);
 292         if (ret != 0)
 293                 imagex_error_with_errno("Can't modify `%s'", path);
 294         return ret;
 295 }
 296
 297 static int open_swms_from_glob(const char *swm_glob,
 298                                const char *first_part,
 299                                int open_flags,
 300                                WIMStruct ***additional_swms_ret,
 301                                unsigned *num_additional_swms_ret)
 302 {
 303         unsigned num_additional_swms = 0;
 304         WIMStruct **additional_swms = NULL;
 305         glob_t globbuf;
 306         int ret;
 307
 308         ret = glob(swm_glob, GLOB_ERR | GLOB_NOSORT, NULL, &globbuf);
 309         if (ret != 0) {
 310                 if (ret == GLOB_NOMATCH) {
 311                         imagex_error("Found no files for glob \"%s\"",
 312                                      swm_glob);
 313                 } else {
 314                         imagex_error_with_errno("Failed to process glob "
 315                                                 "\"%s\"", swm_glob);
 316                 }
 317                 ret = -1;
 318                 goto out;
 319         }
 320         num_additional_swms = globbuf.gl_pathc;
 321         additional_swms = calloc(num_additional_swms, sizeof(additional_swms[0]));
 322         if (!additional_swms) {
 323                 imagex_error("Out of memory");
 324                 ret = -1;
 325                 goto out_globfree;
 326         }
 327         unsigned offset = 0;
 328         for (unsigned i = 0; i < num_additional_swms; i++) {
 329                 if (strcmp(globbuf.gl_pathv[i], first_part) == 0) {
 330                         offset++;
 331                         continue;
 332                 }
 333                 ret = wimlib_open_wim(globbuf.gl_pathv[i],
 334                                       open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK,
 335                                       &additional_swms[i - offset]);
 336                 if (ret != 0)
 337                         goto out_close_swms;
 338         }
 339         *additional_swms_ret = additional_swms;
 340         *num_additional_swms_ret = num_additional_swms - offset;
 341         ret = 0;
 342         goto out_globfree;
 343 out_close_swms:
 344         for (unsigned i = 0; i < num_additional_swms; i++)
 345                 wimlib_free(additional_swms[i]);
 346         free(additional_swms);
 347 out_globfree:
 348         globfree(&globbuf);
 349 out:
 350         return ret;
 351 }
 352
 353
 354 /* Extract one image, or all images, from a WIM file into a directory. */
 355 static int imagex_apply(int argc, const char **argv)
 356 {
 357         int c;
 358         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
 359                          WIMLIB_OPEN_FLAG_SPLIT_OK;
 360         int image;
 361         int num_images;
 362         WIMStruct *w;
 363         int ret;
 364         const char *wimfile;
 365         const char *dir;
 366         const char *image_num_or_name;
 367         int extract_flags = 0;
 368
 369         const char *swm_glob = NULL;
 370         WIMStruct **additional_swms = NULL;
 371         unsigned num_additional_swms = 0;
 372
 373         for_opt(c, apply_options) {
 374                 switch (c) {
 375                 case 'c':
 376                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 377                         break;
 378                 case 'h':
 379                         extract_flags |= WIMLIB_EXTRACT_FLAG_HARDLINK;
 380                         break;
 381                 case 's':
 382                         extract_flags |= WIMLIB_EXTRACT_FLAG_SYMLINK;
 383                         break;
 384                 case 'v':
 385                         extract_flags |= WIMLIB_EXTRACT_FLAG_VERBOSE;
 386                         break;
 387                 case 'r':
 388                         swm_glob = optarg;
 389                         break;
 390                 default:
 391                         usage(APPLY);
 392                         return -1;
 393                 }
 394         }
 395         argc -= optind;
 396         argv += optind;
 397         if (argc != 2 && argc != 3) {
 398                 usage(APPLY);
 399                 return -1;
 400         }
 401
 402         wimfile = argv[0];
 403         if (argc == 2) {
 404                 image_num_or_name = "1";
 405                 dir = argv[1];
 406         } else {
 407                 image_num_or_name = argv[1];
 408                 dir = argv[2];
 409         }
 410
 411         ret = wimlib_open_wim(wimfile, open_flags, &w);
 412         if (ret != 0)
 413                 return ret;
 414
 415         image = wimlib_resolve_image(w, image_num_or_name);
 416         ret = verify_image_exists(image, image_num_or_name, wimfile);
 417         if (ret != 0)
 418                 goto out;
 419
 420         num_images = wimlib_get_num_images(w);
 421         if (argc == 2 && num_images != 1) {
 422                 imagex_error("`%s' contains %d images; Please select one "
 423                              "(or all)", wimfile, num_images);
 424                 usage(APPLY);
 425                 ret = -1;
 426                 goto out;
 427         }
 428
 429         if (swm_glob) {
 430                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
 431                                           &additional_swms,
 432                                           &num_additional_swms);
 433                 if (ret != 0)
 434                         goto out;
 435         }
 436
 437 #ifdef WITH_NTFS_3G
 438         struct stat stbuf;
 439
 440         ret = stat(dir, &stbuf);
 441         if (ret == 0) {
 442                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 443                         const char *ntfs_device = dir;
 444                         printf("Applying image %d of `%s' to NTFS filesystem on `%s'\n",
 445                                image, wimfile, ntfs_device);
 446                         ret = wimlib_apply_image_to_ntfs_volume(w, image,
 447                                                                 ntfs_device,
 448                                                                 extract_flags,
 449                                                                 additional_swms,
 450                                                                 num_additional_swms);
 451                         goto out;
 452                 }
 453         } else {
 454                 if (errno != ENOENT) {
 455                         imagex_error_with_errno("Failed to stat `%s'", dir);
 456                         ret = -1;
 457                         goto out;
 458                 }
 459         }
 460 #endif
 461
 462         ret = wimlib_extract_image(w, image, dir, extract_flags,
 463                                    additional_swms, num_additional_swms);
 464 out:
 465         wimlib_free(w);
 466         if (additional_swms) {
 467                 for (unsigned i = 0; i < num_additional_swms; i++)
 468                         wimlib_free(additional_swms[i]);
 469                 free(additional_swms);
 470         }
 471         return ret;
 472 }
 473
 474 static int imagex_capture_or_append(int argc, const char **argv)
 475 {
 476         int c;
 477         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 478         int add_image_flags = 0;
 479         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 480         int compression_type = WIM_COMPRESSION_TYPE_XPRESS;
 481         const char *dir;
 482         const char *wimfile;
 483         const char *name;
 484         const char *desc;
 485         const char *flags_element = NULL;
 486         const char *config_file = NULL;
 487         char *config_str = NULL;
 488         size_t config_len = 0;
 489         WIMStruct *w = NULL;
 490         int ret;
 491         int cur_image;
 492         char *default_name;
 493         int cmd = strcmp(argv[0], "append") ? CAPTURE : APPEND;
 494
 495         for_opt(c, capture_or_append_options) {
 496                 switch (c) {
 497                 case 'b':
 498                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_BOOT;
 499                         break;
 500                 case 'c':
 501                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 502                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 503                         break;
 504                 case 'C':
 505                         config_file = optarg;
 506                         break;
 507                 case 'x':
 508                         compression_type = get_compression_type(optarg);
 509                         if (compression_type == WIM_COMPRESSION_TYPE_INVALID)
 510                                 return -1;
 511                         break;
 512                 case 'f':
 513                         flags_element = optarg;
 514                         break;
 515                 case 'L':
 516                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE;
 517                         break;
 518                 case 'v':
 519                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_VERBOSE;
 520                         write_flags |= WIMLIB_WRITE_FLAG_VERBOSE;
 521                         break;
 522                 default:
 523                         usage(cmd);
 524                         return -1;
 525                 }
 526         }
 527         argc -= optind;
 528         argv += optind;
 529         if (argc < 2 || argc > 4) {
 530                 usage(cmd);
 531                 return -1;
 532         }
 533         dir = argv[0];
 534         wimfile = argv[1];
 535
 536         char dir_copy[strlen(dir) + 1];
 537         memcpy(dir_copy, dir, strlen(dir) + 1);
 538         default_name = basename(dir_copy);
 539
 540         name = (argc >= 3) ? argv[2] : default_name;
 541         desc = (argc >= 4) ? argv[3] : NULL;
 542
 543         if (config_file) {
 544                 config_str = file_get_contents(config_file, &config_len);
 545                 if (!config_str)
 546                         return -1;
 547         }
 548
 549         if (cmd == APPEND)
 550                 ret = wimlib_open_wim(wimfile, open_flags, &w);
 551         else
 552                 ret = wimlib_create_new_wim(compression_type, &w);
 553         if (ret != 0)
 554                 goto out;
 555
 556 #ifdef WITH_NTFS_3G
 557         struct stat stbuf;
 558
 559         ret = stat(dir, &stbuf);
 560         if (ret == 0) {
 561                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 562                         const char *ntfs_device = dir;
 563                         printf("Capturing WIM image NTFS filesystem on `%s'\n",
 564                                ntfs_device);
 565                         ret = wimlib_add_image_from_ntfs_volume(w, ntfs_device,
 566                                                                 name,
 567                                                                 config_str,
 568                                                                 config_len,
 569                                                                 add_image_flags);
 570                         goto out_write;
 571                 }
 572         } else {
 573                 if (errno != ENOENT) {
 574                         imagex_error_with_errno("Failed to stat `%s'", dir);
 575                         ret = -1;
 576                         goto out;
 577                 }
 578         }
 579 #endif
 580         ret = wimlib_add_image(w, dir, name, config_str, config_len,
 581                                add_image_flags);
 582
 583 out_write:
 584         if (ret != 0)
 585                 goto out;
 586         cur_image = wimlib_get_num_images(w);
 587         if (desc) {
 588                 ret = wimlib_set_image_descripton(w, cur_image, desc);
 589                 if (ret != 0)
 590                         goto out;
 591         }
 592         if (flags_element) {
 593                 ret = wimlib_set_image_flags(w, cur_image, flags_element);
 594                 if (ret != 0)
 595                         goto out;
 596         }
 597         if (cmd == APPEND)
 598                 ret = wimlib_overwrite(w, write_flags);
 599         else
 600                 ret = wimlib_write(w, wimfile, WIM_ALL_IMAGES, write_flags);
 601         if (ret != 0)
 602                 imagex_error("Failed to write the WIM file `%s'", wimfile);
 603 out:
 604         wimlib_free(w);
 605         free(config_str);
 606         return ret;
 607 }
 608
 609 /* Remove image(s) from a WIM. */
 610 static int imagex_delete(int argc, const char **argv)
 611 {
 612         int c;
 613         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 614         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 615         const char *wimfile;
 616         const char *image_num_or_name;
 617         WIMStruct *w;
 618         int image;
 619         int ret;
 620
 621         for_opt(c, delete_options) {
 622                 switch (c) {
 623                 case 'c':
 624                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 625                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 626                         break;
 627                 default:
 628                         usage(DELETE);
 629                         return -1;
 630                 }
 631         }
 632         argc -= optind;
 633         argv += optind;
 634
 635         if (argc != 2) {
 636                 if (argc < 1)
 637                         imagex_error("Must specify a WIM file");
 638                 if (argc < 2)
 639                         imagex_error("Must specify an image");
 640                 usage(DELETE);
 641                 return -1;
 642         }
 643         wimfile = argv[0];
 644         image_num_or_name = argv[1];
 645
 646         ret = file_writable(wimfile);
 647         if (ret != 0)
 648                 return ret;
 649
 650         ret = wimlib_open_wim(wimfile, open_flags, &w);
 651         if (ret != 0)
 652                 return ret;
 653
 654         image = wimlib_resolve_image(w, image_num_or_name);
 655
 656         ret = verify_image_exists(image, image_num_or_name, wimfile);
 657         if (ret != 0)
 658                 goto out;
 659
 660         ret = wimlib_delete_image(w, image);
 661         if (ret != 0) {
 662                 imagex_error("Failed to delete image from `%s'", wimfile);
 663                 goto out;
 664         }
 665
 666         ret = wimlib_overwrite(w, write_flags);
 667         if (ret != 0) {
 668                 imagex_error("Failed to write the file `%s' with image "
 669                              "deleted", wimfile);
 670         }
 671 out:
 672         wimlib_free(w);
 673         return ret;
 674 }
 675
 676 /* Print the files contained in an image(s) in a WIM file. */
 677 static int imagex_dir(int argc, const char **argv)
 678 {
 679         const char *wimfile;
 680         WIMStruct *w;
 681         int image;
 682         int ret;
 683         int num_images;
 684
 685         if (argc < 2) {
 686                 imagex_error("Must specify a WIM file");
 687                 usage(DIR);
 688                 return -1;
 689         }
 690         if (argc > 3) {
 691                 imagex_error("Too many arguments");
 692                 usage(DIR);
 693                 return -1;
 694         }
 695
 696         wimfile = argv[1];
 697         ret = wimlib_open_wim(wimfile, WIMLIB_OPEN_FLAG_SPLIT_OK, &w);
 698         if (ret != 0)
 699                 return ret;
 700
 701         if (argc == 3) {
 702                 image = wimlib_resolve_image(w, argv[2]);
 703                 ret = verify_image_exists(image, argv[2], wimfile);
 704                 if (ret != 0)
 705                         goto out;
 706         } else {
 707                 /* Image was not specified.  If the WIM only contains one image,
 708                  * choose that one; otherwise, print an error. */
 709                 num_images = wimlib_get_num_images(w);
 710                 if (num_images != 1) {
 711                         imagex_error("The file `%s' contains %d images; Please "
 712                                      "select one.", wimfile, num_images);
 713                         usage(DIR);
 714                         ret = -1;
 715                         goto out;
 716                 }
 717                 image = 1;
 718         }
 719
 720         ret = wimlib_print_files(w, image);
 721 out:
 722         wimlib_free(w);
 723         return ret;
 724 }
 725
 726 /* Exports one, or all, images from a WIM file to a new WIM file or an existing
 727  * WIM file. */
 728 static int imagex_export(int argc, const char **argv)
 729 {
 730         int c;
 731         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 732         int export_flags = 0;
 733         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 734         int compression_type;
 735         bool compression_type_specified = false;
 736         const char *src_wimfile;
 737         const char *src_image_num_or_name;
 738         const char *dest_wimfile;
 739         const char *dest_name;
 740         const char *dest_desc;
 741         WIMStruct *src_w = NULL;
 742         WIMStruct *dest_w = NULL;
 743         int ret;
 744         int image;
 745         struct stat stbuf;
 746         bool wim_is_new;
 747         const char *swm_glob = NULL;
 748         WIMStruct **additional_swms = NULL;
 749         unsigned num_additional_swms = 0;
 750
 751         for_opt(c, export_options) {
 752                 switch (c) {
 753                 case 'b':
 754                         export_flags |= WIMLIB_EXPORT_FLAG_BOOT;
 755                         break;
 756                 case 'c':
 757                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 758                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 759                         break;
 760                 case 'x':
 761                         compression_type = get_compression_type(optarg);
 762                         if (compression_type == WIM_COMPRESSION_TYPE_INVALID)
 763                                 return -1;
 764                         compression_type_specified = true;
 765                         break;
 766                 case 'r':
 767                         swm_glob = optarg;
 768                         break;
 769                 default:
 770                         usage(EXPORT);
 771                         return -1;
 772                 }
 773         }
 774         argc -= optind;
 775         argv += optind;
 776         if (argc < 3 || argc > 5) {
 777                 usage(EXPORT);
 778                 return -1;
 779         }
 780         src_wimfile           = argv[0];
 781         src_image_num_or_name = argv[1];
 782         dest_wimfile          = argv[2];
 783         dest_name             = (argc >= 4) ? argv[3] : NULL;
 784         dest_desc             = (argc >= 5) ? argv[4] : NULL;
 785         ret = wimlib_open_wim(src_wimfile,
 786                               open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK, &src_w);
 787         if (ret != 0)
 788                 return ret;
 789
 790         /* Determine if the destination is an existing file or not.
 791          * If so, we try to append the exported image(s) to it; otherwise, we
 792          * create a new WIM containing the exported image(s). */
 793         if (stat(dest_wimfile, &stbuf) == 0) {
 794                 int dest_ctype;
 795
 796                 wim_is_new = false;
 797                 /* Destination file exists. */
 798                 if (!S_ISREG(stbuf.st_mode) && !S_ISLNK(stbuf.st_mode)) {
 799                         imagex_error("`%s' is not a regular file",
 800                                         dest_wimfile);
 801                         ret = -1;
 802                         goto out;
 803                 }
 804                 ret = wimlib_open_wim(dest_wimfile, open_flags, &dest_w);
 805                 if (ret != 0)
 806                         goto out;
 807
 808                 ret = file_writable(dest_wimfile);
 809                 if (ret != 0)
 810                         return ret;
 811
 812                 dest_ctype = wimlib_get_compression_type(dest_w);
 813                 if (compression_type_specified
 814                     && compression_type != dest_ctype)
 815                 {
 816                         imagex_error("Cannot specify a compression type that is "
 817                                      "not the same as that used in the "
 818                                      "destination WIM");
 819                         ret = -1;
 820                         goto out;
 821                 }
 822                 compression_type = dest_ctype;
 823         } else {
 824                 wim_is_new = true;
 825                 /* dest_wimfile is not an existing file, so create a new WIM. */
 826                 if (!compression_type_specified)
 827                         compression_type = wimlib_get_compression_type(src_w);
 828                 if (errno == ENOENT) {
 829                         ret = wimlib_create_new_wim(compression_type, &dest_w);
 830                         if (ret != 0)
 831                                 goto out;
 832                 } else {
 833                         imagex_error_with_errno("Cannot stat file `%s'",
 834                                                 dest_wimfile);
 835                         ret = -1;
 836                         goto out;
 837                 }
 838         }
 839
 840         image = wimlib_resolve_image(src_w, src_image_num_or_name);
 841         ret = verify_image_exists(image, src_image_num_or_name, src_wimfile);
 842         if (ret != 0)
 843                 goto out;
 844
 845         if (swm_glob) {
 846                 ret = open_swms_from_glob(swm_glob, src_wimfile, open_flags,
 847                                           &additional_swms,
 848                                           &num_additional_swms);
 849                 if (ret != 0)
 850                         goto out;
 851         }
 852
 853         ret = wimlib_export_image(src_w, image, dest_w, dest_name, dest_desc,
 854                                   export_flags, additional_swms,
 855                                   num_additional_swms);
 856         if (ret != 0)
 857                 goto out;
 858
 859
 860         if (wim_is_new)
 861                 ret = wimlib_write(dest_w, dest_wimfile, WIM_ALL_IMAGES,
 862                                    write_flags);
 863         else
 864                 ret = wimlib_overwrite(dest_w, write_flags);
 865 out:
 866         wimlib_free(src_w);
 867         wimlib_free(dest_w);
 868         if (additional_swms) {
 869                 for (unsigned i = 0; i < num_additional_swms; i++)
 870                         wimlib_free(additional_swms[i]);
 871                 free(additional_swms);
 872         }
 873         return ret;
 874 }
 875
 876 /* Prints information about a WIM file; also can mark an image as bootable,
 877  * change the name of an image, or change the description of an image. */
 878 static int imagex_info(int argc, const char **argv)
 879 {
 880         int c;
 881         bool boot         = false;
 882         bool check        = false;
 883         bool header       = false;
 884         bool lookup_table = false;
 885         bool xml          = false;
 886         bool metadata     = false;
 887         bool short_header = true;
 888         const char *xml_out_file = NULL;
 889         const char *wimfile;
 890         const char *image_num_or_name = "all";
 891         const char *new_name = NULL;
 892         const char *new_desc = NULL;
 893         WIMStruct *w;
 894         FILE *fp;
 895         int image;
 896         int ret;
 897         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
 898                          WIMLIB_OPEN_FLAG_SPLIT_OK;
 899         int part_number;
 900         int total_parts;
 901
 902         for_opt(c, info_options) {
 903                 switch (c) {
 904                 case 'b':
 905                         boot = true;
 906                         break;
 907                 case 'c':
 908                         check = true;
 909                         break;
 910                 case 'h':
 911                         header = true;
 912                         short_header = false;
 913                         break;
 914                 case 'l':
 915                         lookup_table = true;
 916                         short_header = false;
 917                         break;
 918                 case 'x':
 919                         xml = true;
 920                         short_header = false;
 921                         break;
 922                 case 'X':
 923                         xml_out_file = optarg;
 924                         short_header = false;
 925                         break;
 926                 case 'm':
 927                         metadata = true;
 928                         short_header = false;
 929                         break;
 930                 default:
 931                         usage(INFO);
 932                         return -1;
 933                 }
 934         }
 935
 936         argc -= optind;
 937         argv += optind;
 938         if (argc == 0 || argc > 4) {
 939                 usage(INFO);
 940                 return -1;
 941         }
 942         wimfile = argv[0];
 943         if (argc > 1) {
 944                 image_num_or_name = argv[1];
 945                 if (argc > 2) {
 946                         new_name = argv[2];
 947                         if (argc > 3) {
 948                                 new_desc = argv[3];
 949                         }
 950                 }
 951         }
 952
 953         if (check)
 954                 open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 955
 956         ret = wimlib_open_wim(wimfile, open_flags, &w);
 957         if (ret != 0)
 958                 return ret;
 959
 960         part_number = wimlib_get_part_number(w, &total_parts);
 961
 962         image = wimlib_resolve_image(w, image_num_or_name);
 963         if (image == WIM_NO_IMAGE && strcmp(image_num_or_name, "0") != 0) {
 964                 imagex_error("The image `%s' does not exist",
 965                                                 image_num_or_name);
 966                 if (boot)
 967                         imagex_error("If you would like to set the boot "
 968                                      "index to 0, specify image \"0\" with "
 969                                      "the --boot flag.");
 970                 ret = WIMLIB_ERR_INVALID_IMAGE;
 971                 goto out;
 972         }
 973
 974         if (image == WIM_ALL_IMAGES && wimlib_get_num_images(w) > 1) {
 975                 if (boot) {
 976                         imagex_error("Cannot specify the --boot flag "
 977                                      "without specifying a specific "
 978                                      "image in a multi-image WIM");
 979                         ret = WIMLIB_ERR_INVALID_IMAGE;
 980                         goto out;
 981                 }
 982                 if (new_name) {
 983                         imagex_error("Cannot specify the NEW_NAME "
 984                                      "without specifying a specific "
 985                                      "image in a multi-image WIM");
 986                         ret = WIMLIB_ERR_INVALID_IMAGE;
 987                         goto out;
 988                 }
 989         }
 990
 991         /* Operations that print information are separated from operations that
 992          * recreate the WIM file. */
 993         if (!new_name && !boot) {
 994
 995                 /* Read-only operations */
 996
 997                 if (image == WIM_NO_IMAGE) {
 998                         imagex_error("`%s' is not a valid image",
 999                                      image_num_or_name);
1000                         ret = WIMLIB_ERR_INVALID_IMAGE;
1001                         goto out;
1002                 }
1003
1004                 if (image == WIM_ALL_IMAGES && short_header)
1005                         wimlib_print_wim_information(w);
1006
1007                 if (header)
1008                         wimlib_print_header(w);
1009
1010                 if (lookup_table) {
1011                         if (total_parts != 1) {
1012                                 printf("Warning: Only showing the lookup table "
1013                                        "for part %d of a %d-part WIM.\n",
1014                                        part_number, total_parts);
1015                         }
1016                         wimlib_print_lookup_table(w);
1017                 }
1018
1019                 if (xml) {
1020                         ret = wimlib_extract_xml_data(w, stdout);
1021                         if (ret != 0)
1022                                 goto out;
1023                 }
1024
1025                 if (xml_out_file) {
1026                         fp = fopen(xml_out_file, "wb");
1027                         if (!fp) {
1028                                 imagex_error_with_errno("Failed to open the "
1029                                                         "file `%s' for "
1030                                                         "writing ",
1031                                                         xml_out_file);
1032                                 goto out;
1033                         }
1034                         ret = wimlib_extract_xml_data(w, fp);
1035                         if (fclose(fp) != 0) {
1036                                 imagex_error("Failed to close the file `%s'",
1037                                              xml_out_file);
1038                                 goto out;
1039                         }
1040
1041                         if (ret != 0)
1042                                 goto out;
1043                 }
1044
1045                 if (short_header)
1046                         wimlib_print_available_images(w, image);
1047
1048                 if (metadata) {
1049                         ret = wimlib_print_metadata(w, image);
1050                         if (ret != 0)
1051                                 goto out;
1052                 }
1053         } else {
1054
1055                 /* Modification operations */
1056                 if (total_parts != 1) {
1057                         imagex_error("Modifying a split WIM is not supported.");
1058                         return -1;
1059                 }
1060                 if (image == WIM_ALL_IMAGES)
1061                         image = 1;
1062
1063                 if (image == WIM_NO_IMAGE && new_name) {
1064                         imagex_error("Cannot specify new_name (`%s') when "
1065                                      "using image 0", new_name);
1066                         return -1;
1067                 }
1068
1069                 if (boot) {
1070                         if (image == wimlib_get_boot_idx(w)) {
1071                                 printf("Image %d is already marked as "
1072                                        "bootable.\n", image);
1073                                 boot = false;
1074                         } else {
1075                                 printf("Marking image %d as bootable.\n",
1076                                        image);
1077                                 wimlib_set_boot_idx(w, image);
1078                         }
1079                 }
1080                 if (new_name) {
1081                         if (strcmp(wimlib_get_image_name(w, image),
1082                                                 new_name) == 0) {
1083                                 printf("Image %d is already named \"%s\".\n",
1084                                        image, new_name);
1085                                 new_name = NULL;
1086                         } else {
1087                                 printf("Changing the name of image %d to "
1088                                        "\"%s\".\n", image, new_name);
1089                                 ret = wimlib_set_image_name(w, image, new_name);
1090                                 if (ret != 0)
1091                                         goto out;
1092                         }
1093                 }
1094                 if (new_desc) {
1095                         const char *old_desc;
1096                         old_desc = wimlib_get_image_description(w, image);
1097                         if (old_desc && strcmp(old_desc, new_desc) == 0) {
1098                                 printf("The description of image %d is already "
1099                                        "\"%s\".\n", image, new_desc);
1100                                 new_desc = NULL;
1101                         } else {
1102                                 printf("Changing the description of image %d "
1103                                        "to \"%s\".\n", image, new_desc);
1104                                 ret = wimlib_set_image_descripton(w, image,
1105                                                                   new_desc);
1106                                 if (ret != 0)
1107                                         goto out;
1108                         }
1109                 }
1110
1111                 /* Only call wimlib_overwrite_xml_and_header() if something
1112                  * actually needs to be changed. */
1113                 if (boot || new_name || new_desc ||
1114                                 check != wimlib_has_integrity_table(w)) {
1115
1116                         ret = file_writable(wimfile);
1117                         if (ret != 0)
1118                                 return ret;
1119
1120                         ret = wimlib_overwrite_xml_and_header(w, check ?
1121                                         WIMLIB_WRITE_FLAG_CHECK_INTEGRITY |
1122                                         WIMLIB_WRITE_FLAG_SHOW_PROGRESS : 0);
1123                 } else {
1124                         printf("The file `%s' was not modified because nothing "
1125                                         "needed to be done.\n", wimfile);
1126                         ret = 0;
1127                 }
1128         }
1129 out:
1130         /*wimlib_free(w);*/
1131         return ret;
1132 }
1133
1134 /* Join split WIMs into one part WIM */
1135 static int imagex_join(int argc, const char **argv)
1136 {
1137         int c;
1138         int flags = WIMLIB_OPEN_FLAG_SPLIT_OK | WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
1139         const char *output_path;
1140
1141         for_opt(c, join_options) {
1142                 switch (c) {
1143                 case 'c':
1144                         flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1145                         break;
1146                 default:
1147                         goto err;
1148                 }
1149         }
1150         argc -= optind;
1151         argv += optind;
1152
1153         if (argc < 2) {
1154                 imagex_error("Must specify at least one split WIM (.swm) parts "
1155                              "to join");
1156                 goto err;
1157         }
1158         output_path = argv[0];
1159         return wimlib_join(++argv, --argc, output_path, flags);
1160 err:
1161         usage(JOIN);
1162         return -1;
1163 }
1164
1165 /* Mounts an image using a FUSE mount. */
1166 static int imagex_mount_rw_or_ro(int argc, const char **argv)
1167 {
1168         int c;
1169         int mount_flags = 0;
1170         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
1171                          WIMLIB_OPEN_FLAG_SPLIT_OK;
1172         const char *wimfile;
1173         const char *dir;
1174         WIMStruct *w;
1175         int image;
1176         int num_images;
1177         int ret;
1178         const char *swm_glob = NULL;
1179         WIMStruct **additional_swms = NULL;
1180         unsigned num_additional_swms = 0;
1181
1182         if (strcmp(argv[0], "mountrw") == 0)
1183                 mount_flags |= WIMLIB_MOUNT_FLAG_READWRITE;
1184
1185         for_opt(c, mount_options) {
1186                 switch (c) {
1187                 case 'c':
1188                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1189                         break;
1190                 case 'd':
1191                         mount_flags |= WIMLIB_MOUNT_FLAG_DEBUG;
1192                         break;
1193                 case 's':
1194                         if (strcasecmp(optarg, "none") == 0)
1195                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE;
1196                         else if (strcasecmp(optarg, "xattr") == 0)
1197                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR;
1198                         else if (strcasecmp(optarg, "windows") == 0)
1199                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS;
1200                         else {
1201                                 imagex_error("Unknown stream interface \"%s\"", optarg);
1202                                 goto mount_usage;
1203                         }
1204                         break;
1205                 case 'r':
1206                         swm_glob = optarg;
1207                         break;
1208                 default:
1209                         goto mount_usage;
1210                 }
1211         }
1212         argc -= optind;
1213         argv += optind;
1214         if (argc != 2 && argc != 3)
1215                 goto mount_usage;
1216
1217         wimfile = argv[0];
1218
1219         ret = wimlib_open_wim(wimfile, open_flags, &w);
1220         if (ret != 0)
1221                 return ret;
1222
1223         if (swm_glob) {
1224                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
1225                                           &additional_swms,
1226                                           &num_additional_swms);
1227                 if (ret != 0)
1228                         goto out;
1229         }
1230
1231         if (argc == 2) {
1232                 image = 1;
1233                 num_images = wimlib_get_num_images(w);
1234                 if (num_images != 1) {
1235                         imagex_error("The file `%s' contains %d images; Please "
1236                                      "select one.", wimfile, num_images);
1237                         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1238                                         ? MOUNTRW : MOUNT);
1239                         ret = -1;
1240                         goto out;
1241                 }
1242                 dir = argv[1];
1243         } else {
1244                 image = wimlib_resolve_image(w, argv[1]);
1245                 dir = argv[2];
1246                 ret = verify_image_exists_and_is_single(image, argv[1], wimfile);
1247                 if (ret != 0)
1248                         goto out;
1249         }
1250
1251         if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
1252                 ret = file_writable(wimfile);
1253                 if (ret != 0)
1254                         return ret;
1255         }
1256
1257         ret = wimlib_mount(w, image, dir, mount_flags, additional_swms,
1258                            num_additional_swms);
1259         if (ret != 0) {
1260                 imagex_error("Failed to mount image %d from `%s' on `%s'",
1261                              image, wimfile, dir);
1262
1263         }
1264 out:
1265         wimlib_free(w);
1266         if (additional_swms) {
1267                 for (unsigned i = 0; i < num_additional_swms; i++)
1268                         wimlib_free(additional_swms[i]);
1269                 free(additional_swms);
1270         }
1271         return ret;
1272 mount_usage:
1273         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1274                         ? MOUNTRW : MOUNT);
1275         return -1;
1276 }
1277
1278 /* Split a WIM into a spanned set */
1279 static int imagex_split(int argc, const char **argv)
1280 {
1281         int c;
1282         int flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
1283         unsigned long part_size;
1284         char *tmp;
1285
1286         for_opt(c, split_options) {
1287                 switch (c) {
1288                 case 'c':
1289                         flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1290                         break;
1291                 default:
1292                         usage(SPLIT);
1293                         return -1;
1294                 }
1295         }
1296         argc -= optind;
1297         argv += optind;
1298
1299         if (argc != 3) {
1300                 usage(SPLIT);
1301                 return -1;
1302         }
1303         part_size = strtod(argv[2], &tmp) * (1 << 20);
1304         if (tmp == argv[2] || *tmp) {
1305                 imagex_error("Invalid part size \"%s\"", argv[2]);
1306                 imagex_error("The part size must be an integer or floating-point number of megabytes.");
1307                 return -1;
1308         }
1309         return wimlib_split(argv[0], argv[1], part_size, flags);
1310 }
1311
1312 /* Unmounts an image. */
1313 static int imagex_unmount(int argc, const char **argv)
1314 {
1315         int c;
1316         int unmount_flags = 0;
1317         int ret;
1318
1319         for_opt(c, unmount_options) {
1320                 switch (c) {
1321                 case 'c':
1322                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_COMMIT;
1323                         break;
1324                 case 'C':
1325                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY;
1326                         break;
1327                 default:
1328                         usage(UNMOUNT);
1329                         return -1;
1330                 }
1331         }
1332         argc -= optind;
1333         argv += optind;
1334         if (argc != 1) {
1335                 usage(UNMOUNT);
1336                 return -1;
1337         }
1338
1339         ret = wimlib_unmount(argv[0], unmount_flags);
1340         if (ret != 0)
1341                 imagex_error("Failed to unmount `%s'", argv[0]);
1342         return ret;
1343 }
1344
1345 struct imagex_command {
1346         const char *name;
1347         int (*func)(int , const char **);
1348         int cmd;
1349 };
1350
1351
1352 #define for_imagex_command(p) for (p = &imagex_commands[0]; \
1353                 p != &imagex_commands[ARRAY_LEN(imagex_commands)]; p++)
1354
1355 static const struct imagex_command imagex_commands[] = {
1356         {"append",  imagex_capture_or_append, APPEND},
1357         {"apply",   imagex_apply,             APPLY},
1358         {"capture", imagex_capture_or_append, CAPTURE},
1359         {"delete",  imagex_delete,            DELETE},
1360         {"dir",     imagex_dir,               DIR},
1361         {"export",  imagex_export,            EXPORT},
1362         {"info",    imagex_info,              INFO},
1363         {"join",    imagex_join,              JOIN},
1364         {"mount",   imagex_mount_rw_or_ro,    MOUNT},
1365         {"mountrw", imagex_mount_rw_or_ro,    MOUNTRW},
1366         {"split",   imagex_split,             SPLIT},
1367         {"unmount", imagex_unmount,           UNMOUNT},
1368 };
1369
1370 static void version()
1371 {
1372         static const char *s =
1373         "imagex (" PACKAGE ") " PACKAGE_VERSION "\n"
1374         "Copyright (C) 2012 Eric Biggers\n"
1375         "License GPLv3+; GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
1376         "This is free software: you are free to change and redistribute it.\n"
1377         "There is NO WARRANTY, to the extent permitted by law.\n"
1378         "\n"
1379         "Report bugs to "PACKAGE_BUGREPORT".\n";
1380         fputs(s, stdout);
1381 }
1382
1383
1384 static void help_or_version(int argc, const char **argv)
1385 {
1386         int i;
1387         const char *p;
1388         const struct imagex_command *cmd;
1389
1390         for (i = 1; i < argc; i++) {
1391                 p = argv[i];
1392                 if (*p == '-')
1393                         p++;
1394                 else
1395                         continue;
1396                 if (*p == '-')
1397                         p++;
1398                 if (strcmp(p, "help") == 0) {
1399                         for_imagex_command(cmd) {
1400                                 if (strcmp(cmd->name, argv[1]) == 0) {
1401                                         usage(cmd->cmd);
1402                                         exit(0);
1403                                 }
1404                         }
1405                         usage_all();
1406                         exit(0);
1407                 }
1408                 if (strcmp(p, "version") == 0) {
1409                         version();
1410                         exit(0);
1411                 }
1412         }
1413 }
1414
1415
1416 static void usage(int cmd_type)
1417 {
1418         const struct imagex_command *cmd;
1419         printf("Usage: %s", usage_strings[cmd_type]);
1420         for_imagex_command(cmd) {
1421                 if (cmd->cmd == cmd_type)
1422                         printf("\nTry `man imagex-%s' for more details.\n",
1423                                cmd->name);
1424         }
1425 }
1426
1427 static void usage_all()
1428 {
1429         puts("IMAGEX: Usage:");
1430         for (int i = 0; i < ARRAY_LEN(usage_strings); i++)
1431                 fputs(usage_strings[i], stdout);
1432         static const char *extra =
1433 "    imagex --help\n"
1434 "    imagex --version\n"
1435 "\n"
1436 "    The compression TYPE may be \"maximum\", \"fast\", or \"none\".\n"
1437 "\n"
1438 "    Try `man imagex' for more information.\n"
1439         ;
1440         fputs(extra, stdout);
1441 }
1442
1443
1444 int main(int argc, const char **argv)
1445 {
1446         const struct imagex_command *cmd;
1447         int ret;
1448
1449         if (argc < 2) {
1450                 imagex_error("No command specified");
1451                 usage_all();
1452                 return 1;
1453         }
1454
1455         help_or_version(argc, argv);
1456         argc--;
1457         argv++;
1458
1459         wimlib_set_print_errors(true);
1460
1461         for_imagex_command(cmd) {
1462                 if (strcmp(cmd->name, *argv) == 0) {
1463                         ret = cmd->func(argc, argv);
1464                         if (ret > 0) {
1465                                 imagex_error("Exiting with error code %d:\n"
1466                                              "       %s.", ret,
1467                                              wimlib_get_error_string(ret));
1468                                 if (ret == WIMLIB_ERR_NTFS_3G)
1469                                         imagex_error_with_errno("errno");
1470                         }
1471                         return ret;
1472                 }
1473         }
1474
1475         imagex_error("Unrecognized command: `%s'", argv[0]);
1476         usage_all();
1477         return 1;
1478 }