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