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