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 <limits.h>
  35 #include <sys/stat.h>
  36 #include <unistd.h>
  37 #include <inttypes.h>
  38
  39 #define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
  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         OPTIMIZE,
  57         SPLIT,
  58         UNMOUNT,
  59 };
  60
  61 static void usage(int cmd_type);
  62 static void usage_all();
  63
  64 static const char *usage_strings[] = {
  65 [APPEND] =
  66 "imagex append (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  67 "                     [DESCRIPTION] [--boot] [--check] [--flags EDITION_ID]\n"
  68 "                     [--verbose] [--dereference] [--config=FILE]\n"
  69 "                     [--threads=NUM_THREADS] [--rebuild]\n",
  70 [APPLY] =
  71 "imagex apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all]\n"
  72 "                    (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
  73 "                    [--symlink] [--verbose] [--ref=\"GLOB\"]\n",
  74 [CAPTURE] =
  75 "imagex capture (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  76 "                      [DESCRIPTION] [--boot] [--check] [--compress=TYPE]\n"
  77 "                      [--flags EDITION_ID] [--verbose] [--dereference]\n"
  78 "                      [--config=FILE] [--threads=NUM_THREADS]\n",
  79 [DELETE] =
  80 "imagex delete WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check] [--soft]\n",
  81 [DIR] =
  82 "imagex dir WIMFILE (IMAGE_NUM | IMAGE_NAME | all)\n",
  83 [EXPORT] =
  84 "imagex export SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
  85 "              DEST_WIMFILE [DEST_IMAGE_NAME] [DEST_IMAGE_DESCRIPTION]\n"
  86 "              [--boot] [--check] [--compress=TYPE] [--ref=\"GLOB\"]\n"
  87 "              [--threads=NUM_THREADS] [--rebuild]\n",
  88 [INFO] =
  89 "imagex info WIMFILE [IMAGE_NUM | IMAGE_NAME] [NEW_NAME]\n"
  90 "                   [NEW_DESC] [--boot] [--check] [--header] [--lookup-table]\n"
  91 "                   [--xml] [--extract-xml FILE] [--metadata]\n",
  92 [JOIN] =
  93 "imagex join [--check] WIMFILE SPLIT_WIM...\n",
  94 [MOUNT] =
  95 "imagex mount WIMFILE (IMAGE_NUM | IMAGE_NAME) DIRECTORY\n"
  96 "                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
  97 "                    [--ref=\"GLOB\"]\n",
  98 [MOUNTRW] =
  99 "imagex mountrw WIMFILE [IMAGE_NUM | IMAGE_NAME] DIRECTORY\n"
 100 "                      [--check] [--debug] [--streams-interface=INTERFACE]\n",
 101 [OPTIMIZE] =
 102 "imagex optimize WIMFILE [--check] [--recompress]\n",
 103 [SPLIT] =
 104 "imagex split WIMFILE SPLIT_WIMFILE PART_SIZE_MB [--check]\n",
 105 [UNMOUNT] =
 106 "imagex unmount DIRECTORY [--commit] [--check]\n",
 107 };
 108
 109 static const struct option common_options[] = {
 110         {"help", 0, NULL, 'h'},
 111         {"version", 0, NULL, 'v'},
 112         {NULL, 0, NULL, 0},
 113 };
 114
 115 static const struct option apply_options[] = {
 116         {"check",    no_argument,       NULL, 'c'},
 117         {"hardlink", no_argument,       NULL, 'h'},
 118         {"symlink",  no_argument,       NULL, 's'},
 119         {"verbose",  no_argument,       NULL, 'v'},
 120         {"ref",      required_argument, NULL, 'r'},
 121         {NULL, 0, NULL, 0},
 122 };
 123 static const struct option capture_or_append_options[] = {
 124         {"boot",        no_argument,       NULL, 'b'},
 125         {"check",       no_argument,       NULL, 'c'},
 126         {"compress",    required_argument, NULL, 'x'},
 127         {"config",      required_argument, NULL, 'C'},
 128         {"dereference", no_argument,       NULL, 'L'},
 129         {"flags",       required_argument, NULL, 'f'},
 130         {"verbose",     no_argument,       NULL, 'v'},
 131         {"threads",     required_argument, NULL, 't'},
 132         {"rebuild",     no_argument,       NULL, 'R'},
 133         {NULL, 0, NULL, 0},
 134 };
 135 static const struct option delete_options[] = {
 136         {"check", no_argument, NULL, 'c'},
 137         {"soft",  no_argument, NULL, 's'},
 138         {NULL, 0, NULL, 0},
 139 };
 140
 141 static const struct option export_options[] = {
 142         {"boot",       no_argument,       NULL, 'b'},
 143         {"check",      no_argument,       NULL, 'c'},
 144         {"compress",   required_argument, NULL, 'x'},
 145         {"ref",        required_argument, NULL, 'r'},
 146         {"threads",    required_argument, NULL, 't'},
 147         {"rebuild",    no_argument,       NULL, 'R'},
 148         {NULL, 0, NULL, 0},
 149 };
 150
 151 static const struct option info_options[] = {
 152         {"boot",         no_argument, NULL, 'b'},
 153         {"check",        no_argument, NULL, 'c'},
 154         {"extract-xml",  required_argument, NULL, 'X'},
 155         {"header",       no_argument, NULL, 'h'},
 156         {"lookup-table", no_argument, NULL, 'l'},
 157         {"metadata",     no_argument, NULL, 'm'},
 158         {"xml",          no_argument, NULL, 'x'},
 159         {NULL, 0, NULL, 0},
 160 };
 161
 162 static const struct option join_options[] = {
 163         {"check", no_argument, NULL, 'c'},
 164         {NULL, 0, NULL, 0},
 165 };
 166
 167 static const struct option mount_options[] = {
 168         {"check", no_argument, NULL, 'c'},
 169         {"debug", no_argument, NULL, 'd'},
 170         {"streams-interface", required_argument, NULL, 's'},
 171         {"ref",      required_argument, NULL, 'r'},
 172         {NULL, 0, NULL, 0},
 173 };
 174
 175 static const struct option optimize_options[] = {
 176         {"check",      no_argument, NULL, 'c'},
 177         {"recompress", no_argument, NULL, 'r'},
 178         {NULL, 0, NULL, 0},
 179 };
 180
 181 static const struct option split_options[] = {
 182         {"check", no_argument, NULL, 'c'},
 183         {NULL, 0, NULL, 0},
 184 };
 185
 186 static const struct option unmount_options[] = {
 187         {"commit", no_argument, NULL, 'c'},
 188         {"check", no_argument, NULL, 'C'},
 189         {NULL, 0, NULL, 0},
 190 };
 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 static int verify_image_exists(int image, const char *image_name,
 218                                const char *wim_name)
 219 {
 220         if (image == WIM_NO_IMAGE) {
 221                 imagex_error("\"%s\" is not a valid image in `%s'!\n"
 222                              "       Please specify a 1-based imagex index or "
 223                              "image name.\n"
 224                              "       You may use `imagex info' to list the images "
 225                              "contained in a WIM.",
 226                              image_name, wim_name);
 227                 return -1;
 228         }
 229         return 0;
 230 }
 231
 232 static int verify_image_is_single(int image)
 233 {
 234         if (image == WIM_ALL_IMAGES) {
 235                 imagex_error("Cannot specify all images for this action!");
 236                 return -1;
 237         }
 238         return 0;
 239 }
 240
 241 static int verify_image_exists_and_is_single(int image, const char *image_name,
 242                                              const char *wim_name)
 243 {
 244         int ret;
 245         ret = verify_image_exists(image, image_name, wim_name);
 246         if (ret == 0)
 247                 ret = verify_image_is_single(image);
 248         return ret;
 249 }
 250
 251 static int get_compression_type(const char *optarg)
 252 {
 253         if (strcasecmp(optarg, "maximum") == 0 || strcasecmp(optarg, "lzx") == 0)
 254                 return WIM_COMPRESSION_TYPE_LZX;
 255         else if (strcasecmp(optarg, "fast") == 0 || strcasecmp(optarg, "xpress") == 0)
 256                 return WIM_COMPRESSION_TYPE_XPRESS;
 257         else if (strcasecmp(optarg, "none") == 0)
 258                 return WIM_COMPRESSION_TYPE_NONE;
 259         else {
 260                 imagex_error("Invalid compression type `%s'! Must be "
 261                              "\"maximum\", \"fast\", or \"none\".", optarg);
 262                 return WIM_COMPRESSION_TYPE_INVALID;
 263         }
 264 }
 265
 266 static off_t file_get_size(const char *filename)
 267 {
 268         struct stat st;
 269         if (stat(filename, &st) == 0)
 270                 return st.st_size;
 271         else
 272                 return (off_t)-1;
 273 }
 274
 275 static char *file_get_contents(const char *filename, size_t *len_ret)
 276 {
 277         struct stat stbuf;
 278         char *buf;
 279         size_t len;
 280         FILE *fp;
 281
 282         if (stat(filename, &stbuf) != 0) {
 283                 imagex_error_with_errno("Failed to stat the file `%s'", filename);
 284                 return NULL;
 285         }
 286         len = stbuf.st_size;
 287
 288         fp = fopen(filename, "rb");
 289         if (!fp) {
 290                 imagex_error_with_errno("Failed to open the file `%s'", filename);
 291                 return NULL;
 292         }
 293
 294         buf = malloc(len);
 295         if (!buf) {
 296                 imagex_error("Failed to allocate buffer of %zu bytes to hold "
 297                              "contents of file `%s'", len, filename);
 298                 goto out_fclose;
 299         }
 300         if (fread(buf, 1, len, fp) != len) {
 301                 imagex_error_with_errno("Failed to read %lu bytes from the "
 302                                         "file `%s'", len, filename);
 303                 goto out_free_buf;
 304         }
 305         *len_ret = len;
 306         return buf;
 307 out_free_buf:
 308         free(buf);
 309 out_fclose:
 310         fclose(fp);
 311         return NULL;
 312 }
 313
 314 static int file_writable(const char *path)
 315 {
 316         int ret;
 317         ret = access(path, F_OK | W_OK);
 318         if (ret != 0)
 319                 imagex_error_with_errno("Can't modify `%s'", path);
 320         return ret;
 321 }
 322
 323 static int open_swms_from_glob(const char *swm_glob,
 324                                const char *first_part,
 325                                int open_flags,
 326                                WIMStruct ***additional_swms_ret,
 327                                unsigned *num_additional_swms_ret)
 328 {
 329         unsigned num_additional_swms = 0;
 330         WIMStruct **additional_swms = NULL;
 331         glob_t globbuf;
 332         int ret;
 333
 334         ret = glob(swm_glob, GLOB_ERR | GLOB_NOSORT, NULL, &globbuf);
 335         if (ret != 0) {
 336                 if (ret == GLOB_NOMATCH) {
 337                         imagex_error("Found no files for glob \"%s\"",
 338                                      swm_glob);
 339                 } else {
 340                         imagex_error_with_errno("Failed to process glob "
 341                                                 "\"%s\"", swm_glob);
 342                 }
 343                 ret = -1;
 344                 goto out;
 345         }
 346         num_additional_swms = globbuf.gl_pathc;
 347         additional_swms = calloc(num_additional_swms, sizeof(additional_swms[0]));
 348         if (!additional_swms) {
 349                 imagex_error("Out of memory");
 350                 ret = -1;
 351                 goto out_globfree;
 352         }
 353         unsigned offset = 0;
 354         for (unsigned i = 0; i < num_additional_swms; i++) {
 355                 if (strcmp(globbuf.gl_pathv[i], first_part) == 0) {
 356                         offset++;
 357                         continue;
 358                 }
 359                 ret = wimlib_open_wim(globbuf.gl_pathv[i],
 360                                       open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK,
 361                                       &additional_swms[i - offset]);
 362                 if (ret != 0)
 363                         goto out_close_swms;
 364         }
 365         *additional_swms_ret = additional_swms;
 366         *num_additional_swms_ret = num_additional_swms - offset;
 367         ret = 0;
 368         goto out_globfree;
 369 out_close_swms:
 370         for (unsigned i = 0; i < num_additional_swms; i++)
 371                 wimlib_free(additional_swms[i]);
 372         free(additional_swms);
 373 out_globfree:
 374         globfree(&globbuf);
 375 out:
 376         return ret;
 377 }
 378
 379
 380 static unsigned parse_num_threads(const char *optarg)
 381 {
 382         char *tmp;
 383         unsigned nthreads = strtoul(optarg, &tmp, 10);
 384         if (nthreads == UINT_MAX || *tmp || tmp == optarg) {
 385                 imagex_error("Number of threads must be a non-negative integer!");
 386                 return UINT_MAX;
 387         } else {
 388                 return nthreads;
 389         }
 390 }
 391
 392
 393 /* Extract one image, or all images, from a WIM file into a directory. */
 394 static int imagex_apply(int argc, const char **argv)
 395 {
 396         int c;
 397         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
 398                          WIMLIB_OPEN_FLAG_SPLIT_OK;
 399         int image;
 400         int num_images;
 401         WIMStruct *w;
 402         int ret;
 403         const char *wimfile;
 404         const char *dir;
 405         const char *image_num_or_name;
 406         int extract_flags = WIMLIB_EXTRACT_FLAG_SEQUENTIAL;
 407
 408         const char *swm_glob = NULL;
 409         WIMStruct **additional_swms = NULL;
 410         unsigned num_additional_swms = 0;
 411
 412         for_opt(c, apply_options) {
 413                 switch (c) {
 414                 case 'c':
 415                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 416                         break;
 417                 case 'h':
 418                         extract_flags |= WIMLIB_EXTRACT_FLAG_HARDLINK;
 419                         break;
 420                 case 's':
 421                         extract_flags |= WIMLIB_EXTRACT_FLAG_SYMLINK;
 422                         break;
 423                 case 'v':
 424                         extract_flags |= WIMLIB_EXTRACT_FLAG_VERBOSE;
 425                         break;
 426                 case 'r':
 427                         swm_glob = optarg;
 428                         break;
 429                 default:
 430                         usage(APPLY);
 431                         return -1;
 432                 }
 433         }
 434         argc -= optind;
 435         argv += optind;
 436         if (argc != 2 && argc != 3) {
 437                 usage(APPLY);
 438                 return -1;
 439         }
 440
 441         wimfile = argv[0];
 442         if (argc == 2) {
 443                 image_num_or_name = "1";
 444                 dir = argv[1];
 445         } else {
 446                 image_num_or_name = argv[1];
 447                 dir = argv[2];
 448         }
 449
 450         ret = wimlib_open_wim(wimfile, open_flags, &w);
 451         if (ret != 0)
 452                 return ret;
 453
 454         image = wimlib_resolve_image(w, image_num_or_name);
 455         ret = verify_image_exists(image, image_num_or_name, wimfile);
 456         if (ret != 0)
 457                 goto out;
 458
 459         num_images = wimlib_get_num_images(w);
 460         if (argc == 2 && num_images != 1) {
 461                 imagex_error("`%s' contains %d images; Please select one "
 462                              "(or all)", wimfile, num_images);
 463                 usage(APPLY);
 464                 ret = -1;
 465                 goto out;
 466         }
 467
 468         if (swm_glob) {
 469                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
 470                                           &additional_swms,
 471                                           &num_additional_swms);
 472                 if (ret != 0)
 473                         goto out;
 474         }
 475
 476 #ifdef WITH_NTFS_3G
 477         struct stat stbuf;
 478
 479         ret = stat(dir, &stbuf);
 480         if (ret == 0) {
 481                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 482                         const char *ntfs_device = dir;
 483                         printf("Applying image %d of `%s' to NTFS filesystem on `%s'\n",
 484                                image, wimfile, ntfs_device);
 485                         ret = wimlib_apply_image_to_ntfs_volume(w, image,
 486                                                                 ntfs_device,
 487                                                                 extract_flags,
 488                                                                 additional_swms,
 489                                                                 num_additional_swms);
 490                         goto out;
 491                 }
 492         } else {
 493                 if (errno != ENOENT) {
 494                         imagex_error_with_errno("Failed to stat `%s'", dir);
 495                         ret = -1;
 496                         goto out;
 497                 }
 498         }
 499 #endif
 500
 501         ret = wimlib_extract_image(w, image, dir, extract_flags,
 502                                    additional_swms, num_additional_swms);
 503 out:
 504         wimlib_free(w);
 505         if (additional_swms) {
 506                 for (unsigned i = 0; i < num_additional_swms; i++)
 507                         wimlib_free(additional_swms[i]);
 508                 free(additional_swms);
 509         }
 510         return ret;
 511 }
 512
 513 static int imagex_capture_or_append(int argc, const char **argv)
 514 {
 515         int c;
 516         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 517         int add_image_flags = WIMLIB_ADD_IMAGE_FLAG_SHOW_PROGRESS;
 518         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 519         int compression_type = WIM_COMPRESSION_TYPE_XPRESS;
 520         const char *dir;
 521         const char *wimfile;
 522         const char *name;
 523         const char *desc;
 524         const char *flags_element = NULL;
 525         const char *config_file = NULL;
 526         char *config_str = NULL;
 527         size_t config_len = 0;
 528         WIMStruct *w = NULL;
 529         int ret;
 530         int cur_image;
 531         char *default_name;
 532         int cmd = strcmp(argv[0], "append") ? CAPTURE : APPEND;
 533         unsigned num_threads = 0;
 534
 535         for_opt(c, capture_or_append_options) {
 536                 switch (c) {
 537                 case 'b':
 538                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_BOOT;
 539                         break;
 540                 case 'c':
 541                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 542                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 543                         break;
 544                 case 'C':
 545                         config_file = optarg;
 546                         break;
 547                 case 'x':
 548                         compression_type = get_compression_type(optarg);
 549                         if (compression_type == WIM_COMPRESSION_TYPE_INVALID)
 550                                 return -1;
 551                         break;
 552                 case 'f':
 553                         flags_element = optarg;
 554                         break;
 555                 case 'L':
 556                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE;
 557                         break;
 558                 case 'v':
 559                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_VERBOSE;
 560                         write_flags |= WIMLIB_WRITE_FLAG_VERBOSE;
 561                         break;
 562                 case 't':
 563                         num_threads = parse_num_threads(optarg);
 564                         if (num_threads == UINT_MAX)
 565                                 return -1;
 566                         break;
 567                 case 'R':
 568                         write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
 569                         break;
 570                 default:
 571                         usage(cmd);
 572                         return -1;
 573                 }
 574         }
 575         argc -= optind;
 576         argv += optind;
 577         if (argc < 2 || argc > 4) {
 578                 usage(cmd);
 579                 return -1;
 580         }
 581         dir = argv[0];
 582         wimfile = argv[1];
 583
 584         char dir_copy[strlen(dir) + 1];
 585         memcpy(dir_copy, dir, strlen(dir) + 1);
 586         default_name = basename(dir_copy);
 587
 588         name = (argc >= 3) ? argv[2] : default_name;
 589         desc = (argc >= 4) ? argv[3] : NULL;
 590
 591         if (config_file) {
 592                 config_str = file_get_contents(config_file, &config_len);
 593                 if (!config_str)
 594                         return -1;
 595         }
 596
 597         if (cmd == APPEND)
 598                 ret = wimlib_open_wim(wimfile, open_flags, &w);
 599         else
 600                 ret = wimlib_create_new_wim(compression_type, &w);
 601         if (ret != 0)
 602                 goto out;
 603
 604 #ifdef WITH_NTFS_3G
 605         struct stat stbuf;
 606
 607         ret = stat(dir, &stbuf);
 608         if (ret == 0) {
 609                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 610                         const char *ntfs_device = dir;
 611                         printf("Capturing WIM image NTFS filesystem on `%s'\n",
 612                                ntfs_device);
 613                         ret = wimlib_add_image_from_ntfs_volume(w, ntfs_device,
 614                                                                 name,
 615                                                                 config_str,
 616                                                                 config_len,
 617                                                                 add_image_flags);
 618                         goto out_write;
 619                 }
 620         } else {
 621                 if (errno != ENOENT) {
 622                         imagex_error_with_errno("Failed to stat `%s'", dir);
 623                         ret = -1;
 624                         goto out;
 625                 }
 626         }
 627 #endif
 628         ret = wimlib_add_image(w, dir, name, config_str, config_len,
 629                                add_image_flags);
 630
 631 out_write:
 632         if (ret != 0)
 633                 goto out;
 634         cur_image = wimlib_get_num_images(w);
 635         if (desc) {
 636                 ret = wimlib_set_image_descripton(w, cur_image, desc);
 637                 if (ret != 0)
 638                         goto out;
 639         }
 640         if (flags_element) {
 641                 ret = wimlib_set_image_flags(w, cur_image, flags_element);
 642                 if (ret != 0)
 643                         goto out;
 644         }
 645         if (cmd == APPEND) {
 646                 ret = wimlib_overwrite(w, write_flags, num_threads);
 647         } else {
 648                 ret = wimlib_write(w, wimfile, WIM_ALL_IMAGES, write_flags,
 649                                    num_threads);
 650         }
 651         if (ret == WIMLIB_ERR_REOPEN)
 652                 ret = 0;
 653         if (ret != 0)
 654                 imagex_error("Failed to write the WIM file `%s'", wimfile);
 655 out:
 656         wimlib_free(w);
 657         free(config_str);
 658         return ret;
 659 }
 660
 661 /* Remove image(s) from a WIM. */
 662 static int imagex_delete(int argc, const char **argv)
 663 {
 664         int c;
 665         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 666         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 667         const char *wimfile;
 668         const char *image_num_or_name;
 669         WIMStruct *w;
 670         int image;
 671         int ret;
 672
 673         for_opt(c, delete_options) {
 674                 switch (c) {
 675                 case 'c':
 676                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 677                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 678                         break;
 679                 case 's':
 680                         write_flags |= WIMLIB_WRITE_FLAG_SOFT_DELETE;
 681                         break;
 682                 default:
 683                         usage(DELETE);
 684                         return -1;
 685                 }
 686         }
 687         argc -= optind;
 688         argv += optind;
 689
 690         if (argc != 2) {
 691                 if (argc < 1)
 692                         imagex_error("Must specify a WIM file");
 693                 if (argc < 2)
 694                         imagex_error("Must specify an image");
 695                 usage(DELETE);
 696                 return -1;
 697         }
 698         wimfile = argv[0];
 699         image_num_or_name = argv[1];
 700
 701         ret = file_writable(wimfile);
 702         if (ret != 0)
 703                 return ret;
 704
 705         ret = wimlib_open_wim(wimfile, open_flags, &w);
 706         if (ret != 0)
 707                 return ret;
 708
 709         image = wimlib_resolve_image(w, image_num_or_name);
 710
 711         ret = verify_image_exists(image, image_num_or_name, wimfile);
 712         if (ret != 0)
 713                 goto out;
 714
 715         ret = wimlib_delete_image(w, image);
 716         if (ret != 0) {
 717                 imagex_error("Failed to delete image from `%s'", wimfile);
 718                 goto out;
 719         }
 720
 721         ret = wimlib_overwrite(w, write_flags, 0);
 722         if (ret == WIMLIB_ERR_REOPEN)
 723                 ret = 0;
 724         if (ret != 0) {
 725                 imagex_error("Failed to write the file `%s' with image "
 726                              "deleted", wimfile);
 727         }
 728 out:
 729         wimlib_free(w);
 730         return ret;
 731 }
 732
 733 /* Print the files contained in an image(s) in a WIM file. */
 734 static int imagex_dir(int argc, const char **argv)
 735 {
 736         const char *wimfile;
 737         WIMStruct *w;
 738         int image;
 739         int ret;
 740         int num_images;
 741
 742         if (argc < 2) {
 743                 imagex_error("Must specify a WIM file");
 744                 usage(DIR);
 745                 return -1;
 746         }
 747         if (argc > 3) {
 748                 imagex_error("Too many arguments");
 749                 usage(DIR);
 750                 return -1;
 751         }
 752
 753         wimfile = argv[1];
 754         ret = wimlib_open_wim(wimfile, WIMLIB_OPEN_FLAG_SPLIT_OK, &w);
 755         if (ret != 0)
 756                 return ret;
 757
 758         if (argc == 3) {
 759                 image = wimlib_resolve_image(w, argv[2]);
 760                 ret = verify_image_exists(image, argv[2], wimfile);
 761                 if (ret != 0)
 762                         goto out;
 763         } else {
 764                 /* Image was not specified.  If the WIM only contains one image,
 765                  * choose that one; otherwise, print an error. */
 766                 num_images = wimlib_get_num_images(w);
 767                 if (num_images != 1) {
 768                         imagex_error("The file `%s' contains %d images; Please "
 769                                      "select one.", wimfile, num_images);
 770                         usage(DIR);
 771                         ret = -1;
 772                         goto out;
 773                 }
 774                 image = 1;
 775         }
 776
 777         ret = wimlib_print_files(w, image);
 778 out:
 779         wimlib_free(w);
 780         return ret;
 781 }
 782
 783 /* Exports one, or all, images from a WIM file to a new WIM file or an existing
 784  * WIM file. */
 785 static int imagex_export(int argc, const char **argv)
 786 {
 787         int c;
 788         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
 789         int export_flags = 0;
 790         int write_flags = WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
 791         int compression_type;
 792         bool compression_type_specified = false;
 793         const char *src_wimfile;
 794         const char *src_image_num_or_name;
 795         const char *dest_wimfile;
 796         const char *dest_name;
 797         const char *dest_desc;
 798         WIMStruct *src_w = NULL;
 799         WIMStruct *dest_w = NULL;
 800         int ret;
 801         int image;
 802         struct stat stbuf;
 803         bool wim_is_new;
 804         const char *swm_glob = NULL;
 805         WIMStruct **additional_swms = NULL;
 806         unsigned num_additional_swms = 0;
 807         unsigned num_threads = 0;
 808
 809         for_opt(c, export_options) {
 810                 switch (c) {
 811                 case 'b':
 812                         export_flags |= WIMLIB_EXPORT_FLAG_BOOT;
 813                         break;
 814                 case 'c':
 815                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 816                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 817                         break;
 818                 case 'x':
 819                         compression_type = get_compression_type(optarg);
 820                         if (compression_type == WIM_COMPRESSION_TYPE_INVALID)
 821                                 return -1;
 822                         compression_type_specified = true;
 823                         break;
 824                 case 'r':
 825                         swm_glob = optarg;
 826                         break;
 827                 case 't':
 828                         num_threads = parse_num_threads(optarg);
 829                         if (num_threads == UINT_MAX)
 830                                 return -1;
 831                         break;
 832                 case 'R':
 833                         write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
 834                         break;
 835                 default:
 836                         usage(EXPORT);
 837                         return -1;
 838                 }
 839         }
 840         argc -= optind;
 841         argv += optind;
 842         if (argc < 3 || argc > 5) {
 843                 usage(EXPORT);
 844                 return -1;
 845         }
 846         src_wimfile           = argv[0];
 847         src_image_num_or_name = argv[1];
 848         dest_wimfile          = argv[2];
 849         dest_name             = (argc >= 4) ? argv[3] : NULL;
 850         dest_desc             = (argc >= 5) ? argv[4] : NULL;
 851         ret = wimlib_open_wim(src_wimfile,
 852                               open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK, &src_w);
 853         if (ret != 0)
 854                 return ret;
 855
 856         /* Determine if the destination is an existing file or not.
 857          * If so, we try to append the exported image(s) to it; otherwise, we
 858          * create a new WIM containing the exported image(s). */
 859         if (stat(dest_wimfile, &stbuf) == 0) {
 860                 int dest_ctype;
 861
 862                 wim_is_new = false;
 863                 /* Destination file exists. */
 864                 if (!S_ISREG(stbuf.st_mode) && !S_ISLNK(stbuf.st_mode)) {
 865                         imagex_error("`%s' is not a regular file",
 866                                         dest_wimfile);
 867                         ret = -1;
 868                         goto out;
 869                 }
 870                 ret = wimlib_open_wim(dest_wimfile, open_flags, &dest_w);
 871                 if (ret != 0)
 872                         goto out;
 873
 874                 ret = file_writable(dest_wimfile);
 875                 if (ret != 0)
 876                         return ret;
 877
 878                 dest_ctype = wimlib_get_compression_type(dest_w);
 879                 if (compression_type_specified
 880                     && compression_type != dest_ctype)
 881                 {
 882                         imagex_error("Cannot specify a compression type that is "
 883                                      "not the same as that used in the "
 884                                      "destination WIM");
 885                         ret = -1;
 886                         goto out;
 887                 }
 888                 compression_type = dest_ctype;
 889         } else {
 890                 wim_is_new = true;
 891                 /* dest_wimfile is not an existing file, so create a new WIM. */
 892                 if (!compression_type_specified)
 893                         compression_type = wimlib_get_compression_type(src_w);
 894                 if (errno == ENOENT) {
 895                         ret = wimlib_create_new_wim(compression_type, &dest_w);
 896                         if (ret != 0)
 897                                 goto out;
 898                 } else {
 899                         imagex_error_with_errno("Cannot stat file `%s'",
 900                                                 dest_wimfile);
 901                         ret = -1;
 902                         goto out;
 903                 }
 904         }
 905
 906         image = wimlib_resolve_image(src_w, src_image_num_or_name);
 907         ret = verify_image_exists(image, src_image_num_or_name, src_wimfile);
 908         if (ret != 0)
 909                 goto out;
 910
 911         if (swm_glob) {
 912                 ret = open_swms_from_glob(swm_glob, src_wimfile, open_flags,
 913                                           &additional_swms,
 914                                           &num_additional_swms);
 915                 if (ret != 0)
 916                         goto out;
 917         }
 918
 919         ret = wimlib_export_image(src_w, image, dest_w, dest_name, dest_desc,
 920                                   export_flags, additional_swms,
 921                                   num_additional_swms);
 922         if (ret != 0)
 923                 goto out;
 924
 925
 926         if (wim_is_new)
 927                 ret = wimlib_write(dest_w, dest_wimfile, WIM_ALL_IMAGES,
 928                                    write_flags, num_threads);
 929         else
 930                 ret = wimlib_overwrite(dest_w, write_flags, num_threads);
 931 out:
 932         if (ret == WIMLIB_ERR_REOPEN)
 933                 ret = 0;
 934         wimlib_free(src_w);
 935         wimlib_free(dest_w);
 936         if (additional_swms) {
 937                 for (unsigned i = 0; i < num_additional_swms; i++)
 938                         wimlib_free(additional_swms[i]);
 939                 free(additional_swms);
 940         }
 941         return ret;
 942 }
 943
 944 /* Prints information about a WIM file; also can mark an image as bootable,
 945  * change the name of an image, or change the description of an image. */
 946 static int imagex_info(int argc, const char **argv)
 947 {
 948         int c;
 949         bool boot         = false;
 950         bool check        = false;
 951         bool header       = false;
 952         bool lookup_table = false;
 953         bool xml          = false;
 954         bool metadata     = false;
 955         bool short_header = true;
 956         const char *xml_out_file = NULL;
 957         const char *wimfile;
 958         const char *image_num_or_name = "all";
 959         const char *new_name = NULL;
 960         const char *new_desc = NULL;
 961         WIMStruct *w;
 962         FILE *fp;
 963         int image;
 964         int ret;
 965         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
 966                          WIMLIB_OPEN_FLAG_SPLIT_OK;
 967         int part_number;
 968         int total_parts;
 969
 970         for_opt(c, info_options) {
 971                 switch (c) {
 972                 case 'b':
 973                         boot = true;
 974                         break;
 975                 case 'c':
 976                         check = true;
 977                         break;
 978                 case 'h':
 979                         header = true;
 980                         short_header = false;
 981                         break;
 982                 case 'l':
 983                         lookup_table = true;
 984                         short_header = false;
 985                         break;
 986                 case 'x':
 987                         xml = true;
 988                         short_header = false;
 989                         break;
 990                 case 'X':
 991                         xml_out_file = optarg;
 992                         short_header = false;
 993                         break;
 994                 case 'm':
 995                         metadata = true;
 996                         short_header = false;
 997                         break;
 998                 default:
 999                         usage(INFO);
1000                         return -1;
1001                 }
1002         }
1003
1004         argc -= optind;
1005         argv += optind;
1006         if (argc == 0 || argc > 4) {
1007                 usage(INFO);
1008                 return -1;
1009         }
1010         wimfile = argv[0];
1011         if (argc > 1) {
1012                 image_num_or_name = argv[1];
1013                 if (argc > 2) {
1014                         new_name = argv[2];
1015                         if (argc > 3) {
1016                                 new_desc = argv[3];
1017                         }
1018                 }
1019         }
1020
1021         if (check)
1022                 open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1023
1024         ret = wimlib_open_wim(wimfile, open_flags, &w);
1025         if (ret != 0)
1026                 return ret;
1027
1028         part_number = wimlib_get_part_number(w, &total_parts);
1029
1030         image = wimlib_resolve_image(w, image_num_or_name);
1031         if (image == WIM_NO_IMAGE && strcmp(image_num_or_name, "0") != 0) {
1032                 imagex_error("The image `%s' does not exist",
1033                                                 image_num_or_name);
1034                 if (boot)
1035                         imagex_error("If you would like to set the boot "
1036                                      "index to 0, specify image \"0\" with "
1037                                      "the --boot flag.");
1038                 ret = WIMLIB_ERR_INVALID_IMAGE;
1039                 goto out;
1040         }
1041
1042         if (image == WIM_ALL_IMAGES && wimlib_get_num_images(w) > 1) {
1043                 if (boot) {
1044                         imagex_error("Cannot specify the --boot flag "
1045                                      "without specifying a specific "
1046                                      "image in a multi-image WIM");
1047                         ret = WIMLIB_ERR_INVALID_IMAGE;
1048                         goto out;
1049                 }
1050                 if (new_name) {
1051                         imagex_error("Cannot specify the NEW_NAME "
1052                                      "without specifying a specific "
1053                                      "image in a multi-image WIM");
1054                         ret = WIMLIB_ERR_INVALID_IMAGE;
1055                         goto out;
1056                 }
1057         }
1058
1059         /* Operations that print information are separated from operations that
1060          * recreate the WIM file. */
1061         if (!new_name && !boot) {
1062
1063                 /* Read-only operations */
1064
1065                 if (image == WIM_NO_IMAGE) {
1066                         imagex_error("`%s' is not a valid image",
1067                                      image_num_or_name);
1068                         ret = WIMLIB_ERR_INVALID_IMAGE;
1069                         goto out;
1070                 }
1071
1072                 if (image == WIM_ALL_IMAGES && short_header)
1073                         wimlib_print_wim_information(w);
1074
1075                 if (header)
1076                         wimlib_print_header(w);
1077
1078                 if (lookup_table) {
1079                         if (total_parts != 1) {
1080                                 printf("Warning: Only showing the lookup table "
1081                                        "for part %d of a %d-part WIM.\n",
1082                                        part_number, total_parts);
1083                         }
1084                         wimlib_print_lookup_table(w);
1085                 }
1086
1087                 if (xml) {
1088                         ret = wimlib_extract_xml_data(w, stdout);
1089                         if (ret != 0)
1090                                 goto out;
1091                 }
1092
1093                 if (xml_out_file) {
1094                         fp = fopen(xml_out_file, "wb");
1095                         if (!fp) {
1096                                 imagex_error_with_errno("Failed to open the "
1097                                                         "file `%s' for "
1098                                                         "writing ",
1099                                                         xml_out_file);
1100                                 goto out;
1101                         }
1102                         ret = wimlib_extract_xml_data(w, fp);
1103                         if (fclose(fp) != 0) {
1104                                 imagex_error("Failed to close the file `%s'",
1105                                              xml_out_file);
1106                                 goto out;
1107                         }
1108
1109                         if (ret != 0)
1110                                 goto out;
1111                 }
1112
1113                 if (short_header)
1114                         wimlib_print_available_images(w, image);
1115
1116                 if (metadata) {
1117                         ret = wimlib_print_metadata(w, image);
1118                         if (ret != 0)
1119                                 goto out;
1120                 }
1121         } else {
1122
1123                 /* Modification operations */
1124                 if (total_parts != 1) {
1125                         imagex_error("Modifying a split WIM is not supported.");
1126                         return -1;
1127                 }
1128                 if (image == WIM_ALL_IMAGES)
1129                         image = 1;
1130
1131                 if (image == WIM_NO_IMAGE && new_name) {
1132                         imagex_error("Cannot specify new_name (`%s') when "
1133                                      "using image 0", new_name);
1134                         return -1;
1135                 }
1136
1137                 if (boot) {
1138                         if (image == wimlib_get_boot_idx(w)) {
1139                                 printf("Image %d is already marked as "
1140                                        "bootable.\n", image);
1141                                 boot = false;
1142                         } else {
1143                                 printf("Marking image %d as bootable.\n",
1144                                        image);
1145                                 wimlib_set_boot_idx(w, image);
1146                         }
1147                 }
1148                 if (new_name) {
1149                         if (strcmp(wimlib_get_image_name(w, image),
1150                                                 new_name) == 0) {
1151                                 printf("Image %d is already named \"%s\".\n",
1152                                        image, new_name);
1153                                 new_name = NULL;
1154                         } else {
1155                                 printf("Changing the name of image %d to "
1156                                        "\"%s\".\n", image, new_name);
1157                                 ret = wimlib_set_image_name(w, image, new_name);
1158                                 if (ret != 0)
1159                                         goto out;
1160                         }
1161                 }
1162                 if (new_desc) {
1163                         const char *old_desc;
1164                         old_desc = wimlib_get_image_description(w, image);
1165                         if (old_desc && strcmp(old_desc, new_desc) == 0) {
1166                                 printf("The description of image %d is already "
1167                                        "\"%s\".\n", image, new_desc);
1168                                 new_desc = NULL;
1169                         } else {
1170                                 printf("Changing the description of image %d "
1171                                        "to \"%s\".\n", image, new_desc);
1172                                 ret = wimlib_set_image_descripton(w, image,
1173                                                                   new_desc);
1174                                 if (ret != 0)
1175                                         goto out;
1176                         }
1177                 }
1178
1179                 /* Only call wimlib_overwrite() if something actually needs to
1180                  * be changed. */
1181                 if (boot || new_name || new_desc ||
1182                                 check != wimlib_has_integrity_table(w)) {
1183
1184                         ret = file_writable(wimfile);
1185                         if (ret != 0)
1186                                 return ret;
1187
1188                         int write_flags;
1189                         if (check) {
1190                                 write_flags = WIMLIB_WRITE_FLAG_CHECK_INTEGRITY |
1191                                               WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
1192                         } else {
1193                                 write_flags = 0;
1194                         }
1195
1196                         ret = wimlib_overwrite(w, write_flags, 1);
1197                         if (ret == WIMLIB_ERR_REOPEN)
1198                                 ret = 0;
1199                 } else {
1200                         printf("The file `%s' was not modified because nothing "
1201                                         "needed to be done.\n", wimfile);
1202                         ret = 0;
1203                 }
1204         }
1205 out:
1206         wimlib_free(w);
1207         return ret;
1208 }
1209
1210 /* Join split WIMs into one part WIM */
1211 static int imagex_join(int argc, const char **argv)
1212 {
1213         int c;
1214         int flags = WIMLIB_OPEN_FLAG_SPLIT_OK | WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
1215         const char *output_path;
1216
1217         for_opt(c, join_options) {
1218                 switch (c) {
1219                 case 'c':
1220                         flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1221                         break;
1222                 default:
1223                         goto err;
1224                 }
1225         }
1226         argc -= optind;
1227         argv += optind;
1228
1229         if (argc < 2) {
1230                 imagex_error("Must specify at least one split WIM (.swm) parts "
1231                              "to join");
1232                 goto err;
1233         }
1234         output_path = argv[0];
1235         return wimlib_join(++argv, --argc, output_path, flags);
1236 err:
1237         usage(JOIN);
1238         return -1;
1239 }
1240
1241 /* Mounts an image using a FUSE mount. */
1242 static int imagex_mount_rw_or_ro(int argc, const char **argv)
1243 {
1244         int c;
1245         int mount_flags = 0;
1246         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS |
1247                          WIMLIB_OPEN_FLAG_SPLIT_OK;
1248         const char *wimfile;
1249         const char *dir;
1250         WIMStruct *w;
1251         int image;
1252         int num_images;
1253         int ret;
1254         const char *swm_glob = NULL;
1255         WIMStruct **additional_swms = NULL;
1256         unsigned num_additional_swms = 0;
1257
1258         if (strcmp(argv[0], "mountrw") == 0)
1259                 mount_flags |= WIMLIB_MOUNT_FLAG_READWRITE;
1260
1261         for_opt(c, mount_options) {
1262                 switch (c) {
1263                 case 'c':
1264                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1265                         break;
1266                 case 'd':
1267                         mount_flags |= WIMLIB_MOUNT_FLAG_DEBUG;
1268                         break;
1269                 case 's':
1270                         if (strcasecmp(optarg, "none") == 0)
1271                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE;
1272                         else if (strcasecmp(optarg, "xattr") == 0)
1273                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR;
1274                         else if (strcasecmp(optarg, "windows") == 0)
1275                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS;
1276                         else {
1277                                 imagex_error("Unknown stream interface \"%s\"", optarg);
1278                                 goto mount_usage;
1279                         }
1280                         break;
1281                 case 'r':
1282                         swm_glob = optarg;
1283                         break;
1284                 default:
1285                         goto mount_usage;
1286                 }
1287         }
1288         argc -= optind;
1289         argv += optind;
1290         if (argc != 2 && argc != 3)
1291                 goto mount_usage;
1292
1293         wimfile = argv[0];
1294
1295         ret = wimlib_open_wim(wimfile, open_flags, &w);
1296         if (ret != 0)
1297                 return ret;
1298
1299         if (swm_glob) {
1300                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
1301                                           &additional_swms,
1302                                           &num_additional_swms);
1303                 if (ret != 0)
1304                         goto out;
1305         }
1306
1307         if (argc == 2) {
1308                 image = 1;
1309                 num_images = wimlib_get_num_images(w);
1310                 if (num_images != 1) {
1311                         imagex_error("The file `%s' contains %d images; Please "
1312                                      "select one.", wimfile, num_images);
1313                         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1314                                         ? MOUNTRW : MOUNT);
1315                         ret = -1;
1316                         goto out;
1317                 }
1318                 dir = argv[1];
1319         } else {
1320                 image = wimlib_resolve_image(w, argv[1]);
1321                 dir = argv[2];
1322                 ret = verify_image_exists_and_is_single(image, argv[1], wimfile);
1323                 if (ret != 0)
1324                         goto out;
1325         }
1326
1327         if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
1328                 ret = file_writable(wimfile);
1329                 if (ret != 0)
1330                         return ret;
1331         }
1332
1333         ret = wimlib_mount(w, image, dir, mount_flags, additional_swms,
1334                            num_additional_swms);
1335         if (ret != 0) {
1336                 imagex_error("Failed to mount image %d from `%s' on `%s'",
1337                              image, wimfile, dir);
1338
1339         }
1340 out:
1341         wimlib_free(w);
1342         if (additional_swms) {
1343                 for (unsigned i = 0; i < num_additional_swms; i++)
1344                         wimlib_free(additional_swms[i]);
1345                 free(additional_swms);
1346         }
1347         return ret;
1348 mount_usage:
1349         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1350                         ? MOUNTRW : MOUNT);
1351         return -1;
1352 }
1353
1354 static int imagex_optimize(int argc, const char **argv)
1355 {
1356         int c;
1357         int open_flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
1358         int write_flags = WIMLIB_WRITE_FLAG_REBUILD |
1359                           WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
1360         int ret;
1361         WIMStruct *w;
1362         const char *wimfile;
1363         off_t old_size;
1364         off_t new_size;
1365
1366         for_opt(c, optimize_options) {
1367                 switch (c) {
1368                 case 'c':
1369                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1370                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
1371                         break;
1372                 case 'r':
1373                         write_flags |= WIMLIB_WRITE_FLAG_RECOMPRESS;
1374                         break;
1375                 default:
1376                         usage(OPTIMIZE);
1377                         return -1;
1378                 }
1379         }
1380         argc -= optind;
1381         argv += optind;
1382
1383         if (argc != 1) {
1384                 usage(OPTIMIZE);
1385                 return -1;
1386         }
1387
1388         wimfile = argv[0];
1389
1390         ret = wimlib_open_wim(wimfile, open_flags, &w);
1391         if (ret != 0)
1392                 return ret;
1393
1394         old_size = file_get_size(argv[0]);
1395         printf("`%s' original size: ", wimfile);
1396         if (old_size == -1)
1397                 puts("Unknown");
1398         else
1399                 printf("%"PRIu64" KiB\n", old_size >> 10);
1400
1401         ret = wimlib_overwrite(w, write_flags, 0);
1402
1403         new_size = file_get_size(argv[0]);
1404         printf("`%s' optimized size: ", wimfile);
1405         if (new_size == -1)
1406                 puts("Unknown");
1407         else
1408                 printf("%"PRIu64" KiB\n", new_size >> 10);
1409
1410         fputs("Space saved: ", stdout);
1411         if (new_size != -1 && old_size != -1) {
1412                 printf("%lld KiB\n",
1413                        ((long long)old_size - (long long)new_size) >> 10);
1414         } else {
1415                 puts("Unknown");
1416         }
1417
1418         wimlib_free(w);
1419         return ret;
1420 }
1421
1422 /* Split a WIM into a spanned set */
1423 static int imagex_split(int argc, const char **argv)
1424 {
1425         int c;
1426         int flags = WIMLIB_OPEN_FLAG_SHOW_PROGRESS;
1427         unsigned long part_size;
1428         char *tmp;
1429
1430         for_opt(c, split_options) {
1431                 switch (c) {
1432                 case 'c':
1433                         flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1434                         break;
1435                 default:
1436                         usage(SPLIT);
1437                         return -1;
1438                 }
1439         }
1440         argc -= optind;
1441         argv += optind;
1442
1443         if (argc != 3) {
1444                 usage(SPLIT);
1445                 return -1;
1446         }
1447         part_size = strtod(argv[2], &tmp) * (1 << 20);
1448         if (tmp == argv[2] || *tmp) {
1449                 imagex_error("Invalid part size \"%s\"", argv[2]);
1450                 imagex_error("The part size must be an integer or floating-point number of megabytes.");
1451                 return -1;
1452         }
1453         return wimlib_split(argv[0], argv[1], part_size, flags);
1454 }
1455
1456 /* Unmounts an image. */
1457 static int imagex_unmount(int argc, const char **argv)
1458 {
1459         int c;
1460         int unmount_flags = 0;
1461         int ret;
1462
1463         for_opt(c, unmount_options) {
1464                 switch (c) {
1465                 case 'c':
1466                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_COMMIT;
1467                         break;
1468                 case 'C':
1469                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY;
1470                         break;
1471                 default:
1472                         usage(UNMOUNT);
1473                         return -1;
1474                 }
1475         }
1476         argc -= optind;
1477         argv += optind;
1478         if (argc != 1) {
1479                 usage(UNMOUNT);
1480                 return -1;
1481         }
1482
1483         ret = wimlib_unmount(argv[0], unmount_flags);
1484         if (ret != 0)
1485                 imagex_error("Failed to unmount `%s'", argv[0]);
1486         return ret;
1487 }
1488
1489 struct imagex_command {
1490         const char *name;
1491         int (*func)(int , const char **);
1492         int cmd;
1493 };
1494
1495
1496 #define for_imagex_command(p) for (p = &imagex_commands[0]; \
1497                 p != &imagex_commands[ARRAY_LEN(imagex_commands)]; p++)
1498
1499 static const struct imagex_command imagex_commands[] = {
1500         {"append",  imagex_capture_or_append, APPEND},
1501         {"apply",   imagex_apply,             APPLY},
1502         {"capture", imagex_capture_or_append, CAPTURE},
1503         {"delete",  imagex_delete,            DELETE},
1504         {"dir",     imagex_dir,               DIR},
1505         {"export",  imagex_export,            EXPORT},
1506         {"info",    imagex_info,              INFO},
1507         {"join",    imagex_join,              JOIN},
1508         {"mount",   imagex_mount_rw_or_ro,    MOUNT},
1509         {"mountrw", imagex_mount_rw_or_ro,    MOUNTRW},
1510         {"optimize",imagex_optimize,          OPTIMIZE},
1511         {"split",   imagex_split,             SPLIT},
1512         {"unmount", imagex_unmount,           UNMOUNT},
1513 };
1514
1515 static void version()
1516 {
1517         static const char *s =
1518         "imagex (" PACKAGE ") " PACKAGE_VERSION "\n"
1519         "Copyright (C) 2012 Eric Biggers\n"
1520         "License GPLv3+; GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
1521         "This is free software: you are free to change and redistribute it.\n"
1522         "There is NO WARRANTY, to the extent permitted by law.\n"
1523         "\n"
1524         "Report bugs to "PACKAGE_BUGREPORT".\n";
1525         fputs(s, stdout);
1526 }
1527
1528
1529 static void help_or_version(int argc, const char **argv)
1530 {
1531         int i;
1532         const char *p;
1533         const struct imagex_command *cmd;
1534
1535         for (i = 1; i < argc; i++) {
1536                 p = argv[i];
1537                 if (*p == '-')
1538                         p++;
1539                 else
1540                         continue;
1541                 if (*p == '-')
1542                         p++;
1543                 if (strcmp(p, "help") == 0) {
1544                         for_imagex_command(cmd) {
1545                                 if (strcmp(cmd->name, argv[1]) == 0) {
1546                                         usage(cmd->cmd);
1547                                         exit(0);
1548                                 }
1549                         }
1550                         usage_all();
1551                         exit(0);
1552                 }
1553                 if (strcmp(p, "version") == 0) {
1554                         version();
1555                         exit(0);
1556                 }
1557         }
1558 }
1559
1560
1561 static void usage(int cmd_type)
1562 {
1563         const struct imagex_command *cmd;
1564         printf("Usage: %s", usage_strings[cmd_type]);
1565         for_imagex_command(cmd) {
1566                 if (cmd->cmd == cmd_type)
1567                         printf("\nTry `man imagex-%s' for more details.\n",
1568                                cmd->name);
1569         }
1570 }
1571
1572 static void usage_all()
1573 {
1574         puts("IMAGEX: Usage:");
1575         for (int i = 0; i < ARRAY_LEN(usage_strings); i++)
1576                 printf("    %s", usage_strings[i]);
1577         static const char *extra =
1578 "    imagex --help\n"
1579 "    imagex --version\n"
1580 "\n"
1581 "    The compression TYPE may be \"maximum\", \"fast\", or \"none\".\n"
1582 "\n"
1583 "    Try `man imagex' for more information.\n"
1584         ;
1585         fputs(extra, stdout);
1586 }
1587
1588
1589 int main(int argc, const char **argv)
1590 {
1591         const struct imagex_command *cmd;
1592         int ret;
1593
1594         if (argc < 2) {
1595                 imagex_error("No command specified");
1596                 usage_all();
1597                 return 1;
1598         }
1599
1600         help_or_version(argc, argv);
1601         argc--;
1602         argv++;
1603
1604         wimlib_set_print_errors(true);
1605
1606         for_imagex_command(cmd) {
1607                 if (strcmp(cmd->name, *argv) == 0) {
1608                         ret = cmd->func(argc, argv);
1609                         if (ret > 0) {
1610                                 imagex_error("Exiting with error code %d:\n"
1611                                              "       %s.", ret,
1612                                              wimlib_get_error_string(ret));
1613                                 if (ret == WIMLIB_ERR_NTFS_3G)
1614                                         imagex_error_with_errno("errno");
1615                         }
1616                         return ret;
1617                 }
1618         }
1619
1620         imagex_error("Unrecognized command: `%s'", argv[0]);
1621         usage_all();
1622         return 1;
1623 }