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