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