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 "config.h"
  26
  27 #include "wimlib.h"
  28
  29 #include <errno.h>
  30 #include <getopt.h>
  31 #include <glob.h>
  32 #include <inttypes.h>
  33 #include <libgen.h>
  34 #include <limits.h>
  35 #include <stdarg.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40
  41 #define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
  42
  43 #define for_opt(c, opts) while ((c = getopt_long_only(argc, (char**)argv, "", \
  44                                 opts, NULL)) != -1)
  45
  46 enum imagex_op_type {
  47         APPEND,
  48         APPLY,
  49         CAPTURE,
  50         DELETE,
  51         DIR,
  52         EXPORT,
  53         INFO,
  54         JOIN,
  55         MOUNT,
  56         MOUNTRW,
  57         OPTIMIZE,
  58         SPLIT,
  59         UNMOUNT,
  60 };
  61
  62 static void usage(int cmd_type);
  63 static void usage_all();
  64
  65 static const char *usage_strings[] = {
  66 [APPEND] =
  67 "imagex append (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  68 "                     [DESCRIPTION] [--boot] [--check] [--flags EDITION_ID]\n"
  69 "                     [--verbose] [--dereference] [--config=FILE]\n"
  70 "                     [--threads=NUM_THREADS] [--rebuild]\n",
  71 [APPLY] =
  72 "imagex apply WIMFILE [IMAGE_NUM | IMAGE_NAME | all]\n"
  73 "                    (DIRECTORY | NTFS_VOLUME) [--check] [--hardlink]\n"
  74 "                    [--symlink] [--verbose] [--ref=\"GLOB\"]\n",
  75 [CAPTURE] =
  76 "imagex capture (DIRECTORY | NTFS_VOLUME) WIMFILE [IMAGE_NAME]\n"
  77 "                      [DESCRIPTION] [--boot] [--check] [--compress=TYPE]\n"
  78 "                      [--flags EDITION_ID] [--verbose] [--dereference]\n"
  79 "                      [--config=FILE] [--threads=NUM_THREADS]\n",
  80 [DELETE] =
  81 "imagex delete WIMFILE (IMAGE_NUM | IMAGE_NAME | all) [--check] [--soft]\n",
  82 [DIR] =
  83 "imagex dir WIMFILE (IMAGE_NUM | IMAGE_NAME | all)\n",
  84 [EXPORT] =
  85 "imagex export SRC_WIMFILE (SRC_IMAGE_NUM | SRC_IMAGE_NAME | all ) \n"
  86 "              DEST_WIMFILE [DEST_IMAGE_NAME] [DEST_IMAGE_DESCRIPTION]\n"
  87 "              [--boot] [--check] [--compress=TYPE] [--ref=\"GLOB\"]\n"
  88 "              [--threads=NUM_THREADS] [--rebuild]\n",
  89 [INFO] =
  90 "imagex info WIMFILE [IMAGE_NUM | IMAGE_NAME] [NEW_NAME]\n"
  91 "                   [NEW_DESC] [--boot] [--check] [--header] [--lookup-table]\n"
  92 "                   [--xml] [--extract-xml FILE] [--metadata]\n",
  93 [JOIN] =
  94 "imagex join [--check] WIMFILE SPLIT_WIM...\n",
  95 [MOUNT] =
  96 "imagex mount WIMFILE (IMAGE_NUM | IMAGE_NAME) DIRECTORY\n"
  97 "                    [--check] [--debug] [--streams-interface=INTERFACE]\n"
  98 "                    [--ref=\"GLOB\"]\n",
  99 [MOUNTRW] =
 100 "imagex mountrw WIMFILE [IMAGE_NUM | IMAGE_NAME] DIRECTORY\n"
 101 "                      [--check] [--debug] [--streams-interface=INTERFACE]\n",
 102 [OPTIMIZE] =
 103 "imagex optimize WIMFILE [--check] [--recompress]\n",
 104 [SPLIT] =
 105 "imagex split WIMFILE SPLIT_WIMFILE PART_SIZE_MB [--check]\n",
 106 [UNMOUNT] =
 107 "imagex unmount DIRECTORY [--commit] [--check]\n",
 108 };
 109
 110 static const struct option common_options[] = {
 111         {"help", 0, NULL, 'h'},
 112         {"version", 0, NULL, 'v'},
 113         {NULL, 0, NULL, 0},
 114 };
 115
 116 static const struct option apply_options[] = {
 117         {"check",    no_argument,       NULL, 'c'},
 118         {"hardlink", no_argument,       NULL, 'h'},
 119         {"symlink",  no_argument,       NULL, 's'},
 120         {"verbose",  no_argument,       NULL, 'v'},
 121         {"ref",      required_argument, NULL, 'r'},
 122         {NULL, 0, NULL, 0},
 123 };
 124 static const struct option capture_or_append_options[] = {
 125         {"boot",        no_argument,       NULL, 'b'},
 126         {"check",       no_argument,       NULL, 'c'},
 127         {"compress",    required_argument, NULL, 'x'},
 128         {"config",      required_argument, NULL, 'C'},
 129         {"dereference", no_argument,       NULL, 'L'},
 130         {"flags",       required_argument, NULL, 'f'},
 131         {"verbose",     no_argument,       NULL, 'v'},
 132         {"threads",     required_argument, NULL, 't'},
 133         {"rebuild",     no_argument,       NULL, 'R'},
 134         {NULL, 0, NULL, 0},
 135 };
 136 static const struct option delete_options[] = {
 137         {"check", no_argument, NULL, 'c'},
 138         {"soft",  no_argument, NULL, 's'},
 139         {NULL, 0, NULL, 0},
 140 };
 141
 142 static const struct option export_options[] = {
 143         {"boot",       no_argument,       NULL, 'b'},
 144         {"check",      no_argument,       NULL, 'c'},
 145         {"compress",   required_argument, NULL, 'x'},
 146         {"ref",        required_argument, NULL, 'r'},
 147         {"threads",    required_argument, NULL, 't'},
 148         {"rebuild",    no_argument,       NULL, 'R'},
 149         {NULL, 0, NULL, 0},
 150 };
 151
 152 static const struct option info_options[] = {
 153         {"boot",         no_argument, NULL, 'b'},
 154         {"check",        no_argument, NULL, 'c'},
 155         {"extract-xml",  required_argument, NULL, 'X'},
 156         {"header",       no_argument, NULL, 'h'},
 157         {"lookup-table", no_argument, NULL, 'l'},
 158         {"metadata",     no_argument, NULL, 'm'},
 159         {"xml",          no_argument, NULL, 'x'},
 160         {NULL, 0, NULL, 0},
 161 };
 162
 163 static const struct option join_options[] = {
 164         {"check", no_argument, NULL, 'c'},
 165         {NULL, 0, NULL, 0},
 166 };
 167
 168 static const struct option mount_options[] = {
 169         {"check", no_argument, NULL, 'c'},
 170         {"debug", no_argument, NULL, 'd'},
 171         {"streams-interface", required_argument, NULL, 's'},
 172         {"ref",      required_argument, NULL, 'r'},
 173         {NULL, 0, NULL, 0},
 174 };
 175
 176 static const struct option optimize_options[] = {
 177         {"check",      no_argument, NULL, 'c'},
 178         {"recompress", no_argument, NULL, 'r'},
 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
 195 /* Print formatted error message to stderr. */
 196 static void imagex_error(const char *format, ...)
 197 {
 198         va_list va;
 199         va_start(va, format);
 200         fputs("ERROR: ", stderr);
 201         vfprintf(stderr, format, va);
 202         putc('\n', stderr);
 203         va_end(va);
 204 }
 205
 206 /* Print formatted error message to stderr. */
 207 static void imagex_error_with_errno(const char *format, ...)
 208 {
 209         int errno_save = errno;
 210         va_list va;
 211         va_start(va, format);
 212         fputs("ERROR: ", stderr);
 213         vfprintf(stderr, format, va);
 214         fprintf(stderr, ": %s\n", strerror(errno_save));
 215         va_end(va);
 216 }
 217
 218 static int verify_image_exists(int image, const char *image_name,
 219                                const char *wim_name)
 220 {
 221         if (image == WIMLIB_NO_IMAGE) {
 222                 imagex_error("\"%s\" is not a valid image in `%s'!\n"
 223                              "       Please specify a 1-based imagex index or "
 224                              "image name.\n"
 225                              "       You may use `imagex info' to list the images "
 226                              "contained in a WIM.",
 227                              image_name, wim_name);
 228                 return -1;
 229         }
 230         return 0;
 231 }
 232
 233 static int verify_image_is_single(int image)
 234 {
 235         if (image == WIMLIB_ALL_IMAGES) {
 236                 imagex_error("Cannot specify all images for this action!");
 237                 return -1;
 238         }
 239         return 0;
 240 }
 241
 242 static int verify_image_exists_and_is_single(int image, const char *image_name,
 243                                              const char *wim_name)
 244 {
 245         int ret;
 246         ret = verify_image_exists(image, image_name, wim_name);
 247         if (ret == 0)
 248                 ret = verify_image_is_single(image);
 249         return ret;
 250 }
 251
 252 static int get_compression_type(const char *optarg)
 253 {
 254         if (strcasecmp(optarg, "maximum") == 0 || strcasecmp(optarg, "lzx") == 0)
 255                 return WIMLIB_COMPRESSION_TYPE_LZX;
 256         else if (strcasecmp(optarg, "fast") == 0 || strcasecmp(optarg, "xpress") == 0)
 257                 return WIMLIB_COMPRESSION_TYPE_XPRESS;
 258         else if (strcasecmp(optarg, "none") == 0)
 259                 return WIMLIB_COMPRESSION_TYPE_NONE;
 260         else {
 261                 imagex_error("Invalid compression type `%s'! Must be "
 262                              "\"maximum\", \"fast\", or \"none\".", optarg);
 263                 return WIMLIB_COMPRESSION_TYPE_INVALID;
 264         }
 265 }
 266
 267 static off_t file_get_size(const char *filename)
 268 {
 269         struct stat st;
 270         if (stat(filename, &st) == 0)
 271                 return st.st_size;
 272         else
 273                 return (off_t)-1;
 274 }
 275
 276 static char *file_get_contents(const char *filename, size_t *len_ret)
 277 {
 278         struct stat stbuf;
 279         char *buf;
 280         size_t len;
 281         FILE *fp;
 282
 283         if (stat(filename, &stbuf) != 0) {
 284                 imagex_error_with_errno("Failed to stat the file `%s'", filename);
 285                 return NULL;
 286         }
 287         len = stbuf.st_size;
 288
 289         fp = fopen(filename, "rb");
 290         if (!fp) {
 291                 imagex_error_with_errno("Failed to open the file `%s'", filename);
 292                 return NULL;
 293         }
 294
 295         buf = malloc(len);
 296         if (!buf) {
 297                 imagex_error("Failed to allocate buffer of %zu bytes to hold "
 298                              "contents of file `%s'", len, filename);
 299                 goto out_fclose;
 300         }
 301         if (fread(buf, 1, len, fp) != len) {
 302                 imagex_error_with_errno("Failed to read %lu bytes from the "
 303                                         "file `%s'", len, filename);
 304                 goto out_free_buf;
 305         }
 306         *len_ret = len;
 307         return buf;
 308 out_free_buf:
 309         free(buf);
 310 out_fclose:
 311         fclose(fp);
 312         return NULL;
 313 }
 314
 315 static int file_writable(const char *path)
 316 {
 317         int ret;
 318         ret = access(path, F_OK | W_OK);
 319         if (ret != 0)
 320                 imagex_error_with_errno("Can't modify `%s'", path);
 321         return ret;
 322 }
 323
 324 #define TO_PERCENT(numerator, denominator) \
 325         (((denominator) == 0) ? 0 : ((numerator) * 100 / (denominator)))
 326
 327 static const char *get_data_type(int ctype)
 328 {
 329         switch (ctype) {
 330         case WIMLIB_COMPRESSION_TYPE_NONE:
 331                 return "uncompressed";
 332         case WIMLIB_COMPRESSION_TYPE_LZX:
 333                 return "LZX-compressed";
 334         case WIMLIB_COMPRESSION_TYPE_XPRESS:
 335                 return "XPRESS-compressed";
 336         }
 337         return NULL;
 338 }
 339
 340 static int imagex_progress_func(enum wimlib_progress_msg msg,
 341                                 const union wimlib_progress_info *info)
 342 {
 343         unsigned percent_done;
 344         switch (msg) {
 345         case WIMLIB_PROGRESS_MSG_WRITE_STREAMS:
 346                 percent_done = TO_PERCENT(info->write_streams.completed_bytes,
 347                                           info->write_streams.total_bytes);
 348                 if (info->write_streams.completed_streams == 0) {
 349                         const char *data_type;
 350
 351                         data_type = get_data_type(info->write_streams.compression_type);
 352                         printf("Writing %s data using %u thread%s\n",
 353                                data_type, info->write_streams.num_threads,
 354                                (info->write_streams.num_threads == 1) ? "" : "s");
 355                 }
 356                 printf("\r%"PRIu64" MiB of %"PRIu64" MiB (uncompressed) "
 357                        "written (%u%% done)",
 358                        info->write_streams.completed_bytes >> 20,
 359                        info->write_streams.total_bytes >> 20,
 360                        percent_done);
 361                 if (info->write_streams.completed_bytes == info->write_streams.total_bytes)
 362                         putchar('\n');
 363                 break;
 364         case WIMLIB_PROGRESS_MSG_SCAN_BEGIN:
 365                 printf("Scanning `%s'...\n", info->scan.source);
 366                 break;
 367         case WIMLIB_PROGRESS_MSG_SCAN_DENTRY:
 368                 if (info->scan.excluded)
 369                         printf("Excluding `%s' from capture\n", info->scan.cur_path);
 370                 else
 371                         printf("Scanning `%s'\n", info->scan.cur_path);
 372                 break;
 373         /*case WIMLIB_PROGRESS_MSG_SCAN_END:*/
 374                 /*break;*/
 375         case WIMLIB_PROGRESS_MSG_VERIFY_INTEGRITY:
 376                 percent_done = TO_PERCENT(info->integrity.completed_bytes,
 377                                           info->integrity.total_bytes);
 378                 printf("\rVerifying integrity of `%s': %"PRIu64" MiB "
 379                        "of %"PRIu64" MiB (%u%%) done",
 380                        info->integrity.filename,
 381                        info->integrity.completed_bytes >> 20,
 382                        info->integrity.total_bytes >> 20,
 383                        percent_done);
 384                 if (info->integrity.completed_bytes == info->integrity.total_bytes)
 385                         putchar('\n');
 386                 break;
 387         case WIMLIB_PROGRESS_MSG_CALC_INTEGRITY:
 388                 percent_done = TO_PERCENT(info->integrity.completed_bytes,
 389                                           info->integrity.total_bytes);
 390                 printf("\rCalculating integrity table for WIM: %"PRIu64" MiB "
 391                        "of %"PRIu64" MiB (%u%%) done",
 392                        info->integrity.completed_bytes >> 20,
 393                        info->integrity.total_bytes >> 20,
 394                        percent_done);
 395                 if (info->integrity.completed_bytes == info->integrity.total_bytes)
 396                         putchar('\n');
 397                 break;
 398         case WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_BEGIN:
 399                 /*printf("Applying image %d (%s) to `%s'\n",*/
 400                        /*info->extract.image,*/
 401                        /*info->extract.image_name,*/
 402                        /*info->extract.target);*/
 403                 break;
 404         /*case WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_END:*/
 405                 /*printf("Done applying image %d!\n",*/
 406                        /*info->extract.image);*/
 407                 /*break;*/
 408         /*case WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN:*/
 409                 /*printf("Applying directory structure to %s\n",*/
 410                        /*info->extract.target);*/
 411                 /*break;*/
 412         case WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS:
 413                 percent_done = TO_PERCENT(info->extract.completed_bytes,
 414                                           info->extract.total_bytes);
 415                 printf("\rExtracting files: "
 416                        "%"PRIu64" MiB of %"PRIu64" MiB (%u%%) done",
 417                        info->extract.completed_bytes >> 20,
 418                        info->extract.total_bytes >> 20,
 419                        percent_done);
 420                 if (info->extract.completed_bytes == info->extract.total_bytes)
 421                         putchar('\n');
 422                 break;
 423         case WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY:
 424                 puts(info->extract.cur_path);
 425                 break;
 426         case WIMLIB_PROGRESS_MSG_JOIN_STREAMS:
 427                 percent_done = TO_PERCENT(info->join.completed_bytes,
 428                                           info->join.total_bytes);
 429                 printf("Writing resources from part %u of %u: "
 430                        "%"PRIu64 " MiB of %"PRIu64" MiB (%u%%) written\n",
 431                        (info->join.completed_parts == info->join.total_parts) ?
 432                                 info->join.completed_parts : info->join.completed_parts + 1,
 433                        info->join.total_parts,
 434                        info->join.completed_bytes >> 20,
 435                        info->join.total_bytes >> 20,
 436                        percent_done);
 437                 break;
 438         case WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART:
 439                 percent_done = TO_PERCENT(info->split.completed_bytes,
 440                                           info->split.total_bytes);
 441                 printf("Writing `%s': %"PRIu64" MiB of %"PRIu64" MiB (%u%%) written\n",
 442                        info->split.part_name,
 443                        info->split.completed_bytes >> 20,
 444                        info->split.total_bytes >> 20,
 445                        percent_done);
 446                 break;
 447         case WIMLIB_PROGRESS_MSG_SPLIT_END_PART:
 448                 if (info->split.completed_bytes == info->split.total_bytes) {
 449                         printf("Finished writing %u split WIM parts\n",
 450                                info->split.cur_part_number);
 451                 }
 452                 break;
 453         default:
 454                 break;
 455         }
 456         fflush(stdout);
 457         return 0;
 458 }
 459
 460
 461 static int open_swms_from_glob(const char *swm_glob,
 462                                const char *first_part,
 463                                int open_flags,
 464                                WIMStruct ***additional_swms_ret,
 465                                unsigned *num_additional_swms_ret)
 466 {
 467         unsigned num_additional_swms = 0;
 468         WIMStruct **additional_swms = NULL;
 469         glob_t globbuf;
 470         int ret;
 471
 472         ret = glob(swm_glob, GLOB_ERR | GLOB_NOSORT, NULL, &globbuf);
 473         if (ret != 0) {
 474                 if (ret == GLOB_NOMATCH) {
 475                         imagex_error("Found no files for glob \"%s\"",
 476                                      swm_glob);
 477                 } else {
 478                         imagex_error_with_errno("Failed to process glob "
 479                                                 "\"%s\"", swm_glob);
 480                 }
 481                 ret = -1;
 482                 goto out;
 483         }
 484         num_additional_swms = globbuf.gl_pathc;
 485         additional_swms = calloc(num_additional_swms, sizeof(additional_swms[0]));
 486         if (!additional_swms) {
 487                 imagex_error("Out of memory");
 488                 ret = -1;
 489                 goto out_globfree;
 490         }
 491         unsigned offset = 0;
 492         for (unsigned i = 0; i < num_additional_swms; i++) {
 493                 if (strcmp(globbuf.gl_pathv[i], first_part) == 0) {
 494                         offset++;
 495                         continue;
 496                 }
 497                 ret = wimlib_open_wim(globbuf.gl_pathv[i],
 498                                       open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK,
 499                                       &additional_swms[i - offset],
 500                                       imagex_progress_func);
 501                 if (ret != 0)
 502                         goto out_close_swms;
 503         }
 504         *additional_swms_ret = additional_swms;
 505         *num_additional_swms_ret = num_additional_swms - offset;
 506         ret = 0;
 507         goto out_globfree;
 508 out_close_swms:
 509         for (unsigned i = 0; i < num_additional_swms; i++)
 510                 wimlib_free(additional_swms[i]);
 511         free(additional_swms);
 512 out_globfree:
 513         globfree(&globbuf);
 514 out:
 515         return ret;
 516 }
 517
 518
 519 static unsigned parse_num_threads(const char *optarg)
 520 {
 521         char *tmp;
 522         unsigned nthreads = strtoul(optarg, &tmp, 10);
 523         if (nthreads == UINT_MAX || *tmp || tmp == optarg) {
 524                 imagex_error("Number of threads must be a non-negative integer!");
 525                 return UINT_MAX;
 526         } else {
 527                 return nthreads;
 528         }
 529 }
 530
 531
 532 /* Extract one image, or all images, from a WIM file into a directory. */
 533 static int imagex_apply(int argc, const char **argv)
 534 {
 535         int c;
 536         int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
 537         int image;
 538         int num_images;
 539         WIMStruct *w;
 540         int ret;
 541         const char *wimfile;
 542         const char *target;
 543         const char *image_num_or_name;
 544         int extract_flags = WIMLIB_EXTRACT_FLAG_SEQUENTIAL;
 545
 546         const char *swm_glob = NULL;
 547         WIMStruct **additional_swms = NULL;
 548         unsigned num_additional_swms = 0;
 549
 550         for_opt(c, apply_options) {
 551                 switch (c) {
 552                 case 'c':
 553                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 554                         break;
 555                 case 'h':
 556                         extract_flags |= WIMLIB_EXTRACT_FLAG_HARDLINK;
 557                         break;
 558                 case 's':
 559                         extract_flags |= WIMLIB_EXTRACT_FLAG_SYMLINK;
 560                         break;
 561                 case 'v':
 562                         extract_flags |= WIMLIB_EXTRACT_FLAG_VERBOSE;
 563                         break;
 564                 case 'r':
 565                         swm_glob = optarg;
 566                         break;
 567                 default:
 568                         usage(APPLY);
 569                         return -1;
 570                 }
 571         }
 572         argc -= optind;
 573         argv += optind;
 574         if (argc != 2 && argc != 3) {
 575                 usage(APPLY);
 576                 return -1;
 577         }
 578
 579         wimfile = argv[0];
 580         if (argc == 2) {
 581                 image_num_or_name = "1";
 582                 target = argv[1];
 583         } else {
 584                 image_num_or_name = argv[1];
 585                 target = argv[2];
 586         }
 587
 588         ret = wimlib_open_wim(wimfile, open_flags, &w, imagex_progress_func);
 589         if (ret != 0)
 590                 return ret;
 591
 592         image = wimlib_resolve_image(w, image_num_or_name);
 593         ret = verify_image_exists(image, image_num_or_name, wimfile);
 594         if (ret != 0)
 595                 goto out;
 596
 597         num_images = wimlib_get_num_images(w);
 598         if (argc == 2 && num_images != 1) {
 599                 imagex_error("`%s' contains %d images; Please select one "
 600                              "(or all)", wimfile, num_images);
 601                 usage(APPLY);
 602                 ret = -1;
 603                 goto out;
 604         }
 605
 606         if (swm_glob) {
 607                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
 608                                           &additional_swms,
 609                                           &num_additional_swms);
 610                 if (ret != 0)
 611                         goto out;
 612         }
 613
 614         struct stat stbuf;
 615
 616         ret = stat(target, &stbuf);
 617         if (ret == 0) {
 618                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 619                         extract_flags |= WIMLIB_EXTRACT_FLAG_NTFS;
 620                         printf("Applying `%s' image %d to NTFS volume `%s'\n",
 621                                wimfile, image, target);
 622                 }
 623         } else {
 624                 if (errno != ENOENT) {
 625                         imagex_error_with_errno("Failed to stat `%s'", target);
 626                         ret = -1;
 627                         goto out;
 628                 }
 629         }
 630
 631         ret = wimlib_extract_image(w, image, target, extract_flags,
 632                                    additional_swms, num_additional_swms,
 633                                    imagex_progress_func);
 634 out:
 635         wimlib_free(w);
 636         if (additional_swms) {
 637                 for (unsigned i = 0; i < num_additional_swms; i++)
 638                         wimlib_free(additional_swms[i]);
 639                 free(additional_swms);
 640         }
 641         return ret;
 642 }
 643
 644 static int imagex_capture_or_append(int argc, const char **argv)
 645 {
 646         int c;
 647         int open_flags = 0;
 648         int add_image_flags = 0;
 649         int write_flags = 0;
 650         int compression_type = WIMLIB_COMPRESSION_TYPE_XPRESS;
 651         const char *source;
 652         const char *wimfile;
 653         const char *name;
 654         const char *desc;
 655         const char *flags_element = NULL;
 656         const char *config_file = NULL;
 657         char *config_str = NULL;
 658         size_t config_len = 0;
 659         WIMStruct *w = NULL;
 660         int ret;
 661         int cur_image;
 662         char *default_name;
 663         int cmd = strcmp(argv[0], "append") ? CAPTURE : APPEND;
 664         unsigned num_threads = 0;
 665
 666         for_opt(c, capture_or_append_options) {
 667                 switch (c) {
 668                 case 'b':
 669                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_BOOT;
 670                         break;
 671                 case 'c':
 672                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 673                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 674                         break;
 675                 case 'C':
 676                         config_file = optarg;
 677                         break;
 678                 case 'x':
 679                         compression_type = get_compression_type(optarg);
 680                         if (compression_type == WIMLIB_COMPRESSION_TYPE_INVALID)
 681                                 return -1;
 682                         break;
 683                 case 'f':
 684                         flags_element = optarg;
 685                         break;
 686                 case 'L':
 687                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_DEREFERENCE;
 688                         break;
 689                 case 'v':
 690                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_VERBOSE;
 691                         break;
 692                 case 't':
 693                         num_threads = parse_num_threads(optarg);
 694                         if (num_threads == UINT_MAX)
 695                                 return -1;
 696                         break;
 697                 case 'R':
 698                         write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
 699                         break;
 700                 default:
 701                         usage(cmd);
 702                         return -1;
 703                 }
 704         }
 705         argc -= optind;
 706         argv += optind;
 707         if (argc < 2 || argc > 4) {
 708                 usage(cmd);
 709                 return -1;
 710         }
 711         source = argv[0];
 712         wimfile = argv[1];
 713
 714         char source_copy[strlen(source) + 1];
 715         memcpy(source_copy, source, strlen(source) + 1);
 716         default_name = basename(source_copy);
 717
 718         name = (argc >= 3) ? argv[2] : default_name;
 719         desc = (argc >= 4) ? argv[3] : NULL;
 720
 721         if (config_file) {
 722                 config_str = file_get_contents(config_file, &config_len);
 723                 if (!config_str)
 724                         return -1;
 725         }
 726
 727         if (cmd == APPEND)
 728                 ret = wimlib_open_wim(wimfile, open_flags, &w,
 729                                       imagex_progress_func);
 730         else
 731                 ret = wimlib_create_new_wim(compression_type, &w);
 732         if (ret != 0)
 733                 goto out;
 734
 735         struct stat stbuf;
 736
 737         ret = stat(source, &stbuf);
 738         if (ret == 0) {
 739                 if (S_ISBLK(stbuf.st_mode) || S_ISREG(stbuf.st_mode)) {
 740                         printf("Capturing WIM image from NTFS filesystem on `%s'\n",
 741                                source);
 742                         add_image_flags |= WIMLIB_ADD_IMAGE_FLAG_NTFS;
 743                 }
 744         } else {
 745                 if (errno != ENOENT) {
 746                         imagex_error_with_errno("Failed to stat `%s'", source);
 747                         ret = -1;
 748                         goto out;
 749                 }
 750         }
 751
 752         ret = wimlib_add_image(w, source, name, config_str, config_len,
 753                                add_image_flags, imagex_progress_func);
 754
 755         if (ret != 0)
 756                 goto out;
 757         cur_image = wimlib_get_num_images(w);
 758         if (desc) {
 759                 ret = wimlib_set_image_descripton(w, cur_image, desc);
 760                 if (ret != 0)
 761                         goto out;
 762         }
 763         if (flags_element) {
 764                 ret = wimlib_set_image_flags(w, cur_image, flags_element);
 765                 if (ret != 0)
 766                         goto out;
 767         }
 768         if (cmd == APPEND) {
 769                 ret = wimlib_overwrite(w, write_flags, num_threads,
 770                                        imagex_progress_func);
 771         } else {
 772                 ret = wimlib_write(w, wimfile, WIMLIB_ALL_IMAGES, write_flags,
 773                                    num_threads, imagex_progress_func);
 774         }
 775         if (ret == WIMLIB_ERR_REOPEN)
 776                 ret = 0;
 777         if (ret != 0)
 778                 imagex_error("Failed to write the WIM file `%s'", wimfile);
 779 out:
 780         wimlib_free(w);
 781         free(config_str);
 782         return ret;
 783 }
 784
 785 /* Remove image(s) from a WIM. */
 786 static int imagex_delete(int argc, const char **argv)
 787 {
 788         int c;
 789         int open_flags = 0;
 790         int write_flags = 0;
 791         const char *wimfile;
 792         const char *image_num_or_name;
 793         WIMStruct *w;
 794         int image;
 795         int ret;
 796
 797         for_opt(c, delete_options) {
 798                 switch (c) {
 799                 case 'c':
 800                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 801                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 802                         break;
 803                 case 's':
 804                         write_flags |= WIMLIB_WRITE_FLAG_SOFT_DELETE;
 805                         break;
 806                 default:
 807                         usage(DELETE);
 808                         return -1;
 809                 }
 810         }
 811         argc -= optind;
 812         argv += optind;
 813
 814         if (argc != 2) {
 815                 if (argc < 1)
 816                         imagex_error("Must specify a WIM file");
 817                 if (argc < 2)
 818                         imagex_error("Must specify an image");
 819                 usage(DELETE);
 820                 return -1;
 821         }
 822         wimfile = argv[0];
 823         image_num_or_name = argv[1];
 824
 825         ret = file_writable(wimfile);
 826         if (ret != 0)
 827                 return ret;
 828
 829         ret = wimlib_open_wim(wimfile, open_flags, &w,
 830                               imagex_progress_func);
 831         if (ret != 0)
 832                 return ret;
 833
 834         image = wimlib_resolve_image(w, image_num_or_name);
 835
 836         ret = verify_image_exists(image, image_num_or_name, wimfile);
 837         if (ret != 0)
 838                 goto out;
 839
 840         ret = wimlib_delete_image(w, image);
 841         if (ret != 0) {
 842                 imagex_error("Failed to delete image from `%s'", wimfile);
 843                 goto out;
 844         }
 845
 846         ret = wimlib_overwrite(w, write_flags, 0, imagex_progress_func);
 847         if (ret == WIMLIB_ERR_REOPEN)
 848                 ret = 0;
 849         if (ret != 0) {
 850                 imagex_error("Failed to write the file `%s' with image "
 851                              "deleted", wimfile);
 852         }
 853 out:
 854         wimlib_free(w);
 855         return ret;
 856 }
 857
 858 /* Print the files contained in an image(s) in a WIM file. */
 859 static int imagex_dir(int argc, const char **argv)
 860 {
 861         const char *wimfile;
 862         WIMStruct *w;
 863         int image;
 864         int ret;
 865         int num_images;
 866
 867         if (argc < 2) {
 868                 imagex_error("Must specify a WIM file");
 869                 usage(DIR);
 870                 return -1;
 871         }
 872         if (argc > 3) {
 873                 imagex_error("Too many arguments");
 874                 usage(DIR);
 875                 return -1;
 876         }
 877
 878         wimfile = argv[1];
 879         ret = wimlib_open_wim(wimfile, WIMLIB_OPEN_FLAG_SPLIT_OK, &w,
 880                               imagex_progress_func);
 881         if (ret != 0)
 882                 return ret;
 883
 884         if (argc == 3) {
 885                 image = wimlib_resolve_image(w, argv[2]);
 886                 ret = verify_image_exists(image, argv[2], wimfile);
 887                 if (ret != 0)
 888                         goto out;
 889         } else {
 890                 /* Image was not specified.  If the WIM only contains one image,
 891                  * choose that one; otherwise, print an error. */
 892                 num_images = wimlib_get_num_images(w);
 893                 if (num_images != 1) {
 894                         imagex_error("The file `%s' contains %d images; Please "
 895                                      "select one.", wimfile, num_images);
 896                         usage(DIR);
 897                         ret = -1;
 898                         goto out;
 899                 }
 900                 image = 1;
 901         }
 902
 903         ret = wimlib_print_files(w, image);
 904 out:
 905         wimlib_free(w);
 906         return ret;
 907 }
 908
 909 /* Exports one, or all, images from a WIM file to a new WIM file or an existing
 910  * WIM file. */
 911 static int imagex_export(int argc, const char **argv)
 912 {
 913         int c;
 914         int open_flags = 0;
 915         int export_flags = 0;
 916         int write_flags = 0;
 917         int compression_type = WIMLIB_COMPRESSION_TYPE_NONE;
 918         bool compression_type_specified = false;
 919         const char *src_wimfile;
 920         const char *src_image_num_or_name;
 921         const char *dest_wimfile;
 922         const char *dest_name;
 923         const char *dest_desc;
 924         WIMStruct *src_w = NULL;
 925         WIMStruct *dest_w = NULL;
 926         int ret;
 927         int image;
 928         struct stat stbuf;
 929         bool wim_is_new;
 930         const char *swm_glob = NULL;
 931         WIMStruct **additional_swms = NULL;
 932         unsigned num_additional_swms = 0;
 933         unsigned num_threads = 0;
 934
 935         for_opt(c, export_options) {
 936                 switch (c) {
 937                 case 'b':
 938                         export_flags |= WIMLIB_EXPORT_FLAG_BOOT;
 939                         break;
 940                 case 'c':
 941                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
 942                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
 943                         break;
 944                 case 'x':
 945                         compression_type = get_compression_type(optarg);
 946                         if (compression_type == WIMLIB_COMPRESSION_TYPE_INVALID)
 947                                 return -1;
 948                         compression_type_specified = true;
 949                         break;
 950                 case 'r':
 951                         swm_glob = optarg;
 952                         break;
 953                 case 't':
 954                         num_threads = parse_num_threads(optarg);
 955                         if (num_threads == UINT_MAX)
 956                                 return -1;
 957                         break;
 958                 case 'R':
 959                         write_flags |= WIMLIB_WRITE_FLAG_REBUILD;
 960                         break;
 961                 default:
 962                         usage(EXPORT);
 963                         return -1;
 964                 }
 965         }
 966         argc -= optind;
 967         argv += optind;
 968         if (argc < 3 || argc > 5) {
 969                 usage(EXPORT);
 970                 return -1;
 971         }
 972         src_wimfile           = argv[0];
 973         src_image_num_or_name = argv[1];
 974         dest_wimfile          = argv[2];
 975         dest_name             = (argc >= 4) ? argv[3] : NULL;
 976         dest_desc             = (argc >= 5) ? argv[4] : NULL;
 977         ret = wimlib_open_wim(src_wimfile,
 978                               open_flags | WIMLIB_OPEN_FLAG_SPLIT_OK, &src_w,
 979                               imagex_progress_func);
 980         if (ret != 0)
 981                 return ret;
 982
 983         /* Determine if the destination is an existing file or not.
 984          * If so, we try to append the exported image(s) to it; otherwise, we
 985          * create a new WIM containing the exported image(s). */
 986         if (stat(dest_wimfile, &stbuf) == 0) {
 987                 int dest_ctype;
 988
 989                 wim_is_new = false;
 990                 /* Destination file exists. */
 991                 if (!S_ISREG(stbuf.st_mode) && !S_ISLNK(stbuf.st_mode)) {
 992                         imagex_error("`%s' is not a regular file",
 993                                         dest_wimfile);
 994                         ret = -1;
 995                         goto out;
 996                 }
 997                 ret = wimlib_open_wim(dest_wimfile, open_flags, &dest_w,
 998                                       imagex_progress_func);
 999                 if (ret != 0)
1000                         goto out;
1001
1002                 ret = file_writable(dest_wimfile);
1003                 if (ret != 0)
1004                         return ret;
1005
1006                 dest_ctype = wimlib_get_compression_type(dest_w);
1007                 if (compression_type_specified
1008                     && compression_type != dest_ctype)
1009                 {
1010                         imagex_error("Cannot specify a compression type that is "
1011                                      "not the same as that used in the "
1012                                      "destination WIM");
1013                         ret = -1;
1014                         goto out;
1015                 }
1016                 compression_type = dest_ctype;
1017         } else {
1018                 wim_is_new = true;
1019                 /* dest_wimfile is not an existing file, so create a new WIM. */
1020                 if (!compression_type_specified)
1021                         compression_type = wimlib_get_compression_type(src_w);
1022                 if (errno == ENOENT) {
1023                         ret = wimlib_create_new_wim(compression_type, &dest_w);
1024                         if (ret != 0)
1025                                 goto out;
1026                 } else {
1027                         imagex_error_with_errno("Cannot stat file `%s'",
1028                                                 dest_wimfile);
1029                         ret = -1;
1030                         goto out;
1031                 }
1032         }
1033
1034         image = wimlib_resolve_image(src_w, src_image_num_or_name);
1035         ret = verify_image_exists(image, src_image_num_or_name, src_wimfile);
1036         if (ret != 0)
1037                 goto out;
1038
1039         if (swm_glob) {
1040                 ret = open_swms_from_glob(swm_glob, src_wimfile, open_flags,
1041                                           &additional_swms,
1042                                           &num_additional_swms);
1043                 if (ret != 0)
1044                         goto out;
1045         }
1046
1047         ret = wimlib_export_image(src_w, image, dest_w, dest_name, dest_desc,
1048                                   export_flags, additional_swms,
1049                                   num_additional_swms, imagex_progress_func);
1050         if (ret != 0)
1051                 goto out;
1052
1053
1054         if (wim_is_new)
1055                 ret = wimlib_write(dest_w, dest_wimfile, WIMLIB_ALL_IMAGES,
1056                                    write_flags, num_threads,
1057                                    imagex_progress_func);
1058         else
1059                 ret = wimlib_overwrite(dest_w, write_flags, num_threads,
1060                                        imagex_progress_func);
1061 out:
1062         if (ret == WIMLIB_ERR_REOPEN)
1063                 ret = 0;
1064         wimlib_free(src_w);
1065         wimlib_free(dest_w);
1066         if (additional_swms) {
1067                 for (unsigned i = 0; i < num_additional_swms; i++)
1068                         wimlib_free(additional_swms[i]);
1069                 free(additional_swms);
1070         }
1071         return ret;
1072 }
1073
1074 /* Prints information about a WIM file; also can mark an image as bootable,
1075  * change the name of an image, or change the description of an image. */
1076 static int imagex_info(int argc, const char **argv)
1077 {
1078         int c;
1079         bool boot         = false;
1080         bool check        = false;
1081         bool header       = false;
1082         bool lookup_table = false;
1083         bool xml          = false;
1084         bool metadata     = false;
1085         bool short_header = true;
1086         const char *xml_out_file = NULL;
1087         const char *wimfile;
1088         const char *image_num_or_name = "all";
1089         const char *new_name = NULL;
1090         const char *new_desc = NULL;
1091         WIMStruct *w;
1092         FILE *fp;
1093         int image;
1094         int ret;
1095         int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
1096         int part_number;
1097         int total_parts;
1098
1099         for_opt(c, info_options) {
1100                 switch (c) {
1101                 case 'b':
1102                         boot = true;
1103                         break;
1104                 case 'c':
1105                         check = true;
1106                         break;
1107                 case 'h':
1108                         header = true;
1109                         short_header = false;
1110                         break;
1111                 case 'l':
1112                         lookup_table = true;
1113                         short_header = false;
1114                         break;
1115                 case 'x':
1116                         xml = true;
1117                         short_header = false;
1118                         break;
1119                 case 'X':
1120                         xml_out_file = optarg;
1121                         short_header = false;
1122                         break;
1123                 case 'm':
1124                         metadata = true;
1125                         short_header = false;
1126                         break;
1127                 default:
1128                         usage(INFO);
1129                         return -1;
1130                 }
1131         }
1132
1133         argc -= optind;
1134         argv += optind;
1135         if (argc == 0 || argc > 4) {
1136                 usage(INFO);
1137                 return -1;
1138         }
1139         wimfile = argv[0];
1140         if (argc > 1) {
1141                 image_num_or_name = argv[1];
1142                 if (argc > 2) {
1143                         new_name = argv[2];
1144                         if (argc > 3) {
1145                                 new_desc = argv[3];
1146                         }
1147                 }
1148         }
1149
1150         if (check)
1151                 open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1152
1153         ret = wimlib_open_wim(wimfile, open_flags, &w,
1154                               imagex_progress_func);
1155         if (ret != 0)
1156                 return ret;
1157
1158         part_number = wimlib_get_part_number(w, &total_parts);
1159
1160         image = wimlib_resolve_image(w, image_num_or_name);
1161         if (image == WIMLIB_NO_IMAGE && strcmp(image_num_or_name, "0") != 0) {
1162                 imagex_error("The image `%s' does not exist",
1163                                                 image_num_or_name);
1164                 if (boot)
1165                         imagex_error("If you would like to set the boot "
1166                                      "index to 0, specify image \"0\" with "
1167                                      "the --boot flag.");
1168                 ret = WIMLIB_ERR_INVALID_IMAGE;
1169                 goto out;
1170         }
1171
1172         if (image == WIMLIB_ALL_IMAGES && wimlib_get_num_images(w) > 1) {
1173                 if (boot) {
1174                         imagex_error("Cannot specify the --boot flag "
1175                                      "without specifying a specific "
1176                                      "image in a multi-image WIM");
1177                         ret = WIMLIB_ERR_INVALID_IMAGE;
1178                         goto out;
1179                 }
1180                 if (new_name) {
1181                         imagex_error("Cannot specify the NEW_NAME "
1182                                      "without specifying a specific "
1183                                      "image in a multi-image WIM");
1184                         ret = WIMLIB_ERR_INVALID_IMAGE;
1185                         goto out;
1186                 }
1187         }
1188
1189         /* Operations that print information are separated from operations that
1190          * recreate the WIM file. */
1191         if (!new_name && !boot) {
1192
1193                 /* Read-only operations */
1194
1195                 if (image == WIMLIB_NO_IMAGE) {
1196                         imagex_error("`%s' is not a valid image",
1197                                      image_num_or_name);
1198                         ret = WIMLIB_ERR_INVALID_IMAGE;
1199                         goto out;
1200                 }
1201
1202                 if (image == WIMLIB_ALL_IMAGES && short_header)
1203                         wimlib_print_wim_information(w);
1204
1205                 if (header)
1206                         wimlib_print_header(w);
1207
1208                 if (lookup_table) {
1209                         if (total_parts != 1) {
1210                                 printf("Warning: Only showing the lookup table "
1211                                        "for part %d of a %d-part WIM.\n",
1212                                        part_number, total_parts);
1213                         }
1214                         wimlib_print_lookup_table(w);
1215                 }
1216
1217                 if (xml) {
1218                         ret = wimlib_extract_xml_data(w, stdout);
1219                         if (ret != 0)
1220                                 goto out;
1221                 }
1222
1223                 if (xml_out_file) {
1224                         fp = fopen(xml_out_file, "wb");
1225                         if (!fp) {
1226                                 imagex_error_with_errno("Failed to open the "
1227                                                         "file `%s' for "
1228                                                         "writing ",
1229                                                         xml_out_file);
1230                                 goto out;
1231                         }
1232                         ret = wimlib_extract_xml_data(w, fp);
1233                         if (fclose(fp) != 0) {
1234                                 imagex_error("Failed to close the file `%s'",
1235                                              xml_out_file);
1236                                 goto out;
1237                         }
1238
1239                         if (ret != 0)
1240                                 goto out;
1241                 }
1242
1243                 if (short_header)
1244                         wimlib_print_available_images(w, image);
1245
1246                 if (metadata) {
1247                         ret = wimlib_print_metadata(w, image);
1248                         if (ret != 0)
1249                                 goto out;
1250                 }
1251         } else {
1252
1253                 /* Modification operations */
1254                 if (total_parts != 1) {
1255                         imagex_error("Modifying a split WIM is not supported.");
1256                         return -1;
1257                 }
1258                 if (image == WIMLIB_ALL_IMAGES)
1259                         image = 1;
1260
1261                 if (image == WIMLIB_NO_IMAGE && new_name) {
1262                         imagex_error("Cannot specify new_name (`%s') when "
1263                                      "using image 0", new_name);
1264                         return -1;
1265                 }
1266
1267                 if (boot) {
1268                         if (image == wimlib_get_boot_idx(w)) {
1269                                 printf("Image %d is already marked as "
1270                                        "bootable.\n", image);
1271                                 boot = false;
1272                         } else {
1273                                 printf("Marking image %d as bootable.\n",
1274                                        image);
1275                                 wimlib_set_boot_idx(w, image);
1276                         }
1277                 }
1278                 if (new_name) {
1279                         if (strcmp(wimlib_get_image_name(w, image),
1280                                                 new_name) == 0) {
1281                                 printf("Image %d is already named \"%s\".\n",
1282                                        image, new_name);
1283                                 new_name = NULL;
1284                         } else {
1285                                 printf("Changing the name of image %d to "
1286                                        "\"%s\".\n", image, new_name);
1287                                 ret = wimlib_set_image_name(w, image, new_name);
1288                                 if (ret != 0)
1289                                         goto out;
1290                         }
1291                 }
1292                 if (new_desc) {
1293                         const char *old_desc;
1294                         old_desc = wimlib_get_image_description(w, image);
1295                         if (old_desc && strcmp(old_desc, new_desc) == 0) {
1296                                 printf("The description of image %d is already "
1297                                        "\"%s\".\n", image, new_desc);
1298                                 new_desc = NULL;
1299                         } else {
1300                                 printf("Changing the description of image %d "
1301                                        "to \"%s\".\n", image, new_desc);
1302                                 ret = wimlib_set_image_descripton(w, image,
1303                                                                   new_desc);
1304                                 if (ret != 0)
1305                                         goto out;
1306                         }
1307                 }
1308
1309                 /* Only call wimlib_overwrite() if something actually needs to
1310                  * be changed. */
1311                 if (boot || new_name || new_desc ||
1312                                 check != wimlib_has_integrity_table(w)) {
1313
1314                         ret = file_writable(wimfile);
1315                         if (ret != 0)
1316                                 return ret;
1317
1318                         int write_flags;
1319                         if (check) {
1320                                 write_flags = WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
1321                         } else {
1322                                 write_flags = 0;
1323                         }
1324
1325                         ret = wimlib_overwrite(w, write_flags, 1,
1326                                                imagex_progress_func);
1327                         if (ret == WIMLIB_ERR_REOPEN)
1328                                 ret = 0;
1329                 } else {
1330                         printf("The file `%s' was not modified because nothing "
1331                                         "needed to be done.\n", wimfile);
1332                         ret = 0;
1333                 }
1334         }
1335 out:
1336         wimlib_free(w);
1337         return ret;
1338 }
1339
1340 /* Join split WIMs into one part WIM */
1341 static int imagex_join(int argc, const char **argv)
1342 {
1343         int c;
1344         int swm_open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
1345         int wim_write_flags = 0;
1346         const char *output_path;
1347
1348         for_opt(c, join_options) {
1349                 switch (c) {
1350                 case 'c':
1351                         swm_open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1352                         wim_write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
1353                         break;
1354                 default:
1355                         goto err;
1356                 }
1357         }
1358         argc -= optind;
1359         argv += optind;
1360
1361         if (argc < 2) {
1362                 imagex_error("Must specify one or more split WIM (.swm) parts "
1363                              "to join");
1364                 goto err;
1365         }
1366         output_path = argv[0];
1367         return wimlib_join(++argv, --argc, output_path, swm_open_flags,
1368                            wim_write_flags, imagex_progress_func);
1369 err:
1370         usage(JOIN);
1371         return -1;
1372 }
1373
1374 /* Mounts an image using a FUSE mount. */
1375 static int imagex_mount_rw_or_ro(int argc, const char **argv)
1376 {
1377         int c;
1378         int mount_flags = 0;
1379         int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
1380         const char *wimfile;
1381         const char *dir;
1382         WIMStruct *w;
1383         int image;
1384         int num_images;
1385         int ret;
1386         const char *swm_glob = NULL;
1387         WIMStruct **additional_swms = NULL;
1388         unsigned num_additional_swms = 0;
1389
1390         if (strcmp(argv[0], "mountrw") == 0)
1391                 mount_flags |= WIMLIB_MOUNT_FLAG_READWRITE;
1392
1393         for_opt(c, mount_options) {
1394                 switch (c) {
1395                 case 'c':
1396                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1397                         break;
1398                 case 'd':
1399                         mount_flags |= WIMLIB_MOUNT_FLAG_DEBUG;
1400                         break;
1401                 case 's':
1402                         if (strcasecmp(optarg, "none") == 0)
1403                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_NONE;
1404                         else if (strcasecmp(optarg, "xattr") == 0)
1405                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_XATTR;
1406                         else if (strcasecmp(optarg, "windows") == 0)
1407                                 mount_flags |= WIMLIB_MOUNT_FLAG_STREAM_INTERFACE_WINDOWS;
1408                         else {
1409                                 imagex_error("Unknown stream interface \"%s\"", optarg);
1410                                 goto mount_usage;
1411                         }
1412                         break;
1413                 case 'r':
1414                         swm_glob = optarg;
1415                         break;
1416                 default:
1417                         goto mount_usage;
1418                 }
1419         }
1420         argc -= optind;
1421         argv += optind;
1422         if (argc != 2 && argc != 3)
1423                 goto mount_usage;
1424
1425         wimfile = argv[0];
1426
1427         ret = wimlib_open_wim(wimfile, open_flags, &w,
1428                               imagex_progress_func);
1429         if (ret != 0)
1430                 return ret;
1431
1432         if (swm_glob) {
1433                 ret = open_swms_from_glob(swm_glob, wimfile, open_flags,
1434                                           &additional_swms,
1435                                           &num_additional_swms);
1436                 if (ret != 0)
1437                         goto out;
1438         }
1439
1440         if (argc == 2) {
1441                 image = 1;
1442                 num_images = wimlib_get_num_images(w);
1443                 if (num_images != 1) {
1444                         imagex_error("The file `%s' contains %d images; Please "
1445                                      "select one.", wimfile, num_images);
1446                         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1447                                         ? MOUNTRW : MOUNT);
1448                         ret = -1;
1449                         goto out;
1450                 }
1451                 dir = argv[1];
1452         } else {
1453                 image = wimlib_resolve_image(w, argv[1]);
1454                 dir = argv[2];
1455                 ret = verify_image_exists_and_is_single(image, argv[1], wimfile);
1456                 if (ret != 0)
1457                         goto out;
1458         }
1459
1460         if (mount_flags & WIMLIB_MOUNT_FLAG_READWRITE) {
1461                 ret = file_writable(wimfile);
1462                 if (ret != 0)
1463                         return ret;
1464         }
1465
1466         ret = wimlib_mount_image(w, image, dir, mount_flags, additional_swms,
1467                                  num_additional_swms, NULL);
1468         if (ret != 0) {
1469                 imagex_error("Failed to mount image %d from `%s' on `%s'",
1470                              image, wimfile, dir);
1471
1472         }
1473 out:
1474         wimlib_free(w);
1475         if (additional_swms) {
1476                 for (unsigned i = 0; i < num_additional_swms; i++)
1477                         wimlib_free(additional_swms[i]);
1478                 free(additional_swms);
1479         }
1480         return ret;
1481 mount_usage:
1482         usage((mount_flags & WIMLIB_MOUNT_FLAG_READWRITE)
1483                         ? MOUNTRW : MOUNT);
1484         return -1;
1485 }
1486
1487 static int imagex_optimize(int argc, const char **argv)
1488 {
1489         int c;
1490         int open_flags = 0;
1491         int write_flags = WIMLIB_WRITE_FLAG_REBUILD;
1492         int ret;
1493         WIMStruct *w;
1494         const char *wimfile;
1495         off_t old_size;
1496         off_t new_size;
1497
1498         for_opt(c, optimize_options) {
1499                 switch (c) {
1500                 case 'c':
1501                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1502                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
1503                         break;
1504                 case 'r':
1505                         write_flags |= WIMLIB_WRITE_FLAG_RECOMPRESS;
1506                         break;
1507                 default:
1508                         usage(OPTIMIZE);
1509                         return -1;
1510                 }
1511         }
1512         argc -= optind;
1513         argv += optind;
1514
1515         if (argc != 1) {
1516                 usage(OPTIMIZE);
1517                 return -1;
1518         }
1519
1520         wimfile = argv[0];
1521
1522         ret = wimlib_open_wim(wimfile, open_flags, &w,
1523                               imagex_progress_func);
1524         if (ret != 0)
1525                 return ret;
1526
1527         old_size = file_get_size(argv[0]);
1528         printf("`%s' original size: ", wimfile);
1529         if (old_size == -1)
1530                 puts("Unknown");
1531         else
1532                 printf("%"PRIu64" KiB\n", old_size >> 10);
1533
1534         ret = wimlib_overwrite(w, write_flags, 0, imagex_progress_func);
1535
1536         new_size = file_get_size(argv[0]);
1537         printf("`%s' optimized size: ", wimfile);
1538         if (new_size == -1)
1539                 puts("Unknown");
1540         else
1541                 printf("%"PRIu64" KiB\n", new_size >> 10);
1542
1543         fputs("Space saved: ", stdout);
1544         if (new_size != -1 && old_size != -1) {
1545                 printf("%lld KiB\n",
1546                        ((long long)old_size - (long long)new_size) >> 10);
1547         } else {
1548                 puts("Unknown");
1549         }
1550
1551         wimlib_free(w);
1552         return ret;
1553 }
1554
1555 /* Split a WIM into a spanned set */
1556 static int imagex_split(int argc, const char **argv)
1557 {
1558         int c;
1559         int open_flags = WIMLIB_OPEN_FLAG_SPLIT_OK;
1560         int write_flags = 0;
1561         unsigned long part_size;
1562         char *tmp;
1563         int ret;
1564         WIMStruct *w;
1565
1566         for_opt(c, split_options) {
1567                 switch (c) {
1568                 case 'c':
1569                         open_flags |= WIMLIB_OPEN_FLAG_CHECK_INTEGRITY;
1570                         write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
1571                         break;
1572                 default:
1573                         usage(SPLIT);
1574                         return -1;
1575                 }
1576         }
1577         argc -= optind;
1578         argv += optind;
1579
1580         if (argc != 3) {
1581                 usage(SPLIT);
1582                 return -1;
1583         }
1584         part_size = strtod(argv[2], &tmp) * (1 << 20);
1585         if (tmp == argv[2] || *tmp) {
1586                 imagex_error("Invalid part size \"%s\"", argv[2]);
1587                 imagex_error("The part size must be an integer or floating-point number of megabytes.");
1588                 return -1;
1589         }
1590         ret = wimlib_open_wim(argv[0], open_flags, &w, imagex_progress_func);
1591         if (ret != 0)
1592                 return ret;
1593         ret = wimlib_split(w, argv[1], part_size, write_flags, imagex_progress_func);
1594         wimlib_free(w);
1595         return ret;
1596 }
1597
1598 /* Unmounts an image. */
1599 static int imagex_unmount(int argc, const char **argv)
1600 {
1601         int c;
1602         int unmount_flags = 0;
1603         int ret;
1604
1605         for_opt(c, unmount_options) {
1606                 switch (c) {
1607                 case 'c':
1608                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_COMMIT;
1609                         break;
1610                 case 'C':
1611                         unmount_flags |= WIMLIB_UNMOUNT_FLAG_CHECK_INTEGRITY;
1612                         break;
1613                 default:
1614                         usage(UNMOUNT);
1615                         return -1;
1616                 }
1617         }
1618         argc -= optind;
1619         argv += optind;
1620         if (argc != 1) {
1621                 usage(UNMOUNT);
1622                 return -1;
1623         }
1624
1625         ret = wimlib_unmount_image(argv[0], unmount_flags,
1626                                    imagex_progress_func);
1627         if (ret != 0)
1628                 imagex_error("Failed to unmount `%s'", argv[0]);
1629         return ret;
1630 }
1631
1632 struct imagex_command {
1633         const char *name;
1634         int (*func)(int , const char **);
1635         int cmd;
1636 };
1637
1638
1639 #define for_imagex_command(p) for (p = &imagex_commands[0]; \
1640                 p != &imagex_commands[ARRAY_LEN(imagex_commands)]; p++)
1641
1642 static const struct imagex_command imagex_commands[] = {
1643         {"append",  imagex_capture_or_append, APPEND},
1644         {"apply",   imagex_apply,             APPLY},
1645         {"capture", imagex_capture_or_append, CAPTURE},
1646         {"delete",  imagex_delete,            DELETE},
1647         {"dir",     imagex_dir,               DIR},
1648         {"export",  imagex_export,            EXPORT},
1649         {"info",    imagex_info,              INFO},
1650         {"join",    imagex_join,              JOIN},
1651         {"mount",   imagex_mount_rw_or_ro,    MOUNT},
1652         {"mountrw", imagex_mount_rw_or_ro,    MOUNTRW},
1653         {"optimize",imagex_optimize,          OPTIMIZE},
1654         {"split",   imagex_split,             SPLIT},
1655         {"unmount", imagex_unmount,           UNMOUNT},
1656 };
1657
1658 static void version()
1659 {
1660         static const char *s =
1661         "imagex (" PACKAGE ") " PACKAGE_VERSION "\n"
1662         "Copyright (C) 2012 Eric Biggers\n"
1663         "License GPLv3+; GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
1664         "This is free software: you are free to change and redistribute it.\n"
1665         "There is NO WARRANTY, to the extent permitted by law.\n"
1666         "\n"
1667         "Report bugs to "PACKAGE_BUGREPORT".\n";
1668         fputs(s, stdout);
1669 }
1670
1671
1672 static void help_or_version(int argc, const char **argv)
1673 {
1674         int i;
1675         const char *p;
1676         const struct imagex_command *cmd;
1677
1678         for (i = 1; i < argc; i++) {
1679                 p = argv[i];
1680                 if (*p == '-')
1681                         p++;
1682                 else
1683                         continue;
1684                 if (*p == '-')
1685                         p++;
1686                 if (strcmp(p, "help") == 0) {
1687                         for_imagex_command(cmd) {
1688                                 if (strcmp(cmd->name, argv[1]) == 0) {
1689                                         usage(cmd->cmd);
1690                                         exit(0);
1691                                 }
1692                         }
1693                         usage_all();
1694                         exit(0);
1695                 }
1696                 if (strcmp(p, "version") == 0) {
1697                         version();
1698                         exit(0);
1699                 }
1700         }
1701 }
1702
1703
1704 static void usage(int cmd_type)
1705 {
1706         const struct imagex_command *cmd;
1707         printf("Usage: %s", usage_strings[cmd_type]);
1708         for_imagex_command(cmd) {
1709                 if (cmd->cmd == cmd_type)
1710                         printf("\nTry `man imagex-%s' for more details.\n",
1711                                cmd->name);
1712         }
1713 }
1714
1715 static void usage_all()
1716 {
1717         puts("IMAGEX: Usage:");
1718         for (int i = 0; i < ARRAY_LEN(usage_strings); i++)
1719                 printf("    %s", usage_strings[i]);
1720         static const char *extra =
1721 "    imagex --help\n"
1722 "    imagex --version\n"
1723 "\n"
1724 "    The compression TYPE may be \"maximum\", \"fast\", or \"none\".\n"
1725 "\n"
1726 "    Try `man imagex' for more information.\n"
1727         ;
1728         fputs(extra, stdout);
1729 }
1730
1731
1732 int main(int argc, const char **argv)
1733 {
1734         const struct imagex_command *cmd;
1735         int ret;
1736
1737         if (argc < 2) {
1738                 imagex_error("No command specified");
1739                 usage_all();
1740                 return 1;
1741         }
1742
1743         help_or_version(argc, argv);
1744         argc--;
1745         argv++;
1746
1747         wimlib_set_print_errors(true);
1748
1749         for_imagex_command(cmd) {
1750                 if (strcmp(cmd->name, *argv) == 0) {
1751                         ret = cmd->func(argc, argv);
1752                         if (ret > 0) {
1753                                 imagex_error("Exiting with error code %d:\n"
1754                                              "       %s.", ret,
1755                                              wimlib_get_error_string(ret));
1756                                 if (ret == WIMLIB_ERR_NTFS_3G)
1757                                         imagex_error_with_errno("errno");
1758                         }
1759                         return ret;
1760                 }
1761         }
1762
1763         imagex_error("Unrecognized command: `%s'", argv[0]);
1764         usage_all();
1765         return 1;
1766 }