wimlib.net Git - wimlib/blob - src/wim.c

   1 /*
   2  * wim.c - Stuff that doesn't fit into any other file
   3  */
   4
   5 /*
   6  * Copyright (C) 2012 Eric Biggers
   7  *
   8  * wimlib - Library for working with WIM files
   9  *
  10  * This file is part of wimlib, a library for working with WIM files.
  11  *
  12  * wimlib is free software; you can redistribute it and/or modify it under the
  13  * terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 3 of the License, or (at your option)
  15  * any later version.
  16  *
  17  * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
  18  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  19  * A PARTICULAR PURPOSE. See the GNU General Public License for more
  20  * details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with wimlib; if not, see http://www.gnu.org/licenses/.
  24  */
  25
  26 #include "config.h"
  27 #include <limits.h>
  28 #include <stdlib.h>
  29 #include <stdarg.h>
  30 #include <errno.h>
  31
  32 #include "dentry.h"
  33 #include <unistd.h>
  34 #include <fcntl.h>
  35
  36 #ifdef WITH_NTFS_3G
  37 #include <time.h>
  38 #include <ntfs-3g/volume.h>
  39 #endif
  40
  41 #include "wimlib_internal.h"
  42 #include "buffer_io.h"
  43 #include "lookup_table.h"
  44 #include "xml.h"
  45
  46 static int image_print_metadata(WIMStruct *w)
  47 {
  48         DEBUG("Printing metadata for image %d", w->current_image);
  49         print_security_data(wim_security_data(w));
  50         return for_dentry_in_tree(wim_root_dentry(w), print_dentry,
  51                                   w->lookup_table);
  52 }
  53
  54
  55 static int image_print_files(WIMStruct *w)
  56 {
  57         return for_dentry_in_tree(wim_root_dentry(w), print_dentry_full_path,
  58                                   NULL);
  59 }
  60
  61 static WIMStruct *new_wim_struct()
  62 {
  63         WIMStruct *w = CALLOC(1, sizeof(WIMStruct));
  64 #ifdef WITH_FUSE
  65         if (pthread_mutex_init(&w->fp_tab_mutex, NULL) != 0) {
  66                 ERROR_WITH_ERRNO("Failed to initialize mutex");
  67                 FREE(w);
  68                 w = NULL;
  69         }
  70 #endif
  71         return w;
  72
  73 }
  74
  75 /*
  76  * Calls a function on images in the WIM.  If @image is WIMLIB_ALL_IMAGES, @visitor
  77  * is called on the WIM once for each image, with each image selected as the
  78  * current image in turn.  If @image is a certain image, @visitor is called on
  79  * the WIM only once, with that image selected.
  80  */
  81 int for_image(WIMStruct *w, int image, int (*visitor)(WIMStruct *))
  82 {
  83         int ret;
  84         int start;
  85         int end;
  86         int i;
  87
  88         if (image == WIMLIB_ALL_IMAGES) {
  89                 start = 1;
  90                 end = w->hdr.image_count;
  91         } else if (image >= 1 && image <= w->hdr.image_count) {
  92                 start = image;
  93                 end = image;
  94         } else {
  95                 return WIMLIB_ERR_INVALID_IMAGE;
  96         }
  97         for (i = start; i <= end; i++) {
  98                 ret = select_wim_image(w, i);
  99                 if (ret != 0)
 100                         return ret;
 101                 ret = visitor(w);
 102                 if (ret != 0)
 103                         return ret;
 104         }
 105         return 0;
 106 }
 107
 108 static int sort_image_metadata_by_position(const void *p1, const void *p2)
 109 {
 110         const struct wim_image_metadata *imd1 = p1;
 111         const struct wim_image_metadata *imd2 = p2;
 112         u64 offset1 = imd1->metadata_lte->resource_entry.offset;
 113         u64 offset2 = imd2->metadata_lte->resource_entry.offset;
 114         if (offset1 < offset2)
 115                 return -1;
 116         else if (offset1 > offset2)
 117                 return 1;
 118         else
 119                 return 0;
 120 }
 121
 122 /*
 123  * If @lte points to a metadata resource, append it to the list of metadata
 124  * resources in the WIMStruct.  Otherwise, do nothing.
 125  */
 126 static int append_metadata_resource_entry(struct wim_lookup_table_entry *lte,
 127                                           void *wim_p)
 128 {
 129         WIMStruct *w = wim_p;
 130         int ret = 0;
 131
 132         if (lte->resource_entry.flags & WIM_RESHDR_FLAG_METADATA) {
 133                 if (w->current_image == w->hdr.image_count) {
 134                         ERROR("The WIM header says there are %u images in the WIM,\n"
 135                               "        but we found more metadata resources than this",
 136                               w->hdr.image_count);
 137                         ret = WIMLIB_ERR_IMAGE_COUNT;
 138                 } else {
 139                         DEBUG("Found metadata resource for image %u at "
 140                               "offset %"PRIu64".",
 141                               w->current_image + 1,
 142                               lte->resource_entry.offset);
 143                         w->image_metadata[
 144                                 w->current_image++].metadata_lte = lte;
 145                 }
 146         }
 147         return ret;
 148 }
 149
 150 /* Returns the compression type given in the flags of a WIM header. */
 151 static int wim_hdr_flags_compression_type(int wim_hdr_flags)
 152 {
 153         if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESSION) {
 154                 if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESS_LZX)
 155                         return WIMLIB_COMPRESSION_TYPE_LZX;
 156                 else if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESS_XPRESS)
 157                         return WIMLIB_COMPRESSION_TYPE_XPRESS;
 158                 else
 159                         return WIMLIB_COMPRESSION_TYPE_INVALID;
 160         } else {
 161                 return WIMLIB_COMPRESSION_TYPE_NONE;
 162         }
 163 }
 164
 165 /*
 166  * Creates a WIMStruct for a new WIM file.
 167  */
 168 WIMLIBAPI int wimlib_create_new_wim(int ctype, WIMStruct **w_ret)
 169 {
 170         WIMStruct *w;
 171         struct wim_lookup_table *table;
 172         int ret;
 173
 174         DEBUG("Creating new WIM with %s compression.",
 175               wimlib_get_compression_type_string(ctype));
 176
 177         /* Allocate the WIMStruct. */
 178         w = new_wim_struct();
 179         if (!w)
 180                 return WIMLIB_ERR_NOMEM;
 181
 182         ret = init_header(&w->hdr, ctype);
 183         if (ret != 0)
 184                 goto out_free;
 185
 186         table = new_lookup_table(9001);
 187         if (!table) {
 188                 ret = WIMLIB_ERR_NOMEM;
 189                 goto out_free;
 190         }
 191         w->lookup_table = table;
 192         *w_ret = w;
 193         return 0;
 194 out_free:
 195         FREE(w);
 196         return ret;
 197 }
 198
 199 WIMLIBAPI int wimlib_get_num_images(const WIMStruct *w)
 200 {
 201         return w->hdr.image_count;
 202 }
 203
 204 int select_wim_image(WIMStruct *w, int image)
 205 {
 206         struct wim_image_metadata *imd;
 207         int ret;
 208
 209         DEBUG("Selecting image %d", image);
 210
 211         if (image == WIMLIB_NO_IMAGE) {
 212                 ERROR("Invalid image: %d", WIMLIB_NO_IMAGE);
 213                 return WIMLIB_ERR_INVALID_IMAGE;
 214         }
 215
 216         if (image == w->current_image)
 217                 return 0;
 218
 219         if (image < 1 || image > w->hdr.image_count) {
 220                 ERROR("Cannot select image %d: There are only %u images",
 221                       image, w->hdr.image_count);
 222                 return WIMLIB_ERR_INVALID_IMAGE;
 223         }
 224
 225         /* If a valid image is currently selected, it can be freed if it is not
 226          * modified.  */
 227         if (w->current_image != WIMLIB_NO_IMAGE) {
 228                 imd = wim_get_current_image_metadata(w);
 229                 if (!imd->modified) {
 230                         DEBUG("Freeing image %u", w->current_image);
 231                         destroy_image_metadata(imd, NULL);
 232                         imd->root_dentry = NULL;
 233                         imd->security_data = NULL;
 234                         INIT_HLIST_HEAD(&imd->inode_list);
 235                 }
 236                 w->current_image = WIMLIB_NO_IMAGE;
 237         }
 238
 239         imd = wim_get_current_image_metadata(w);
 240         if (imd->root_dentry) {
 241                 ret = 0;
 242         } else {
 243                 #ifdef ENABLE_DEBUG
 244                 DEBUG("Reading metadata resource specified by the following "
 245                       "lookup table entry:");
 246                 print_lookup_table_entry(imd->metadata_lte, stdout);
 247                 #endif
 248                 ret = read_metadata_resource(w, imd);
 249         }
 250         if (ret == 0)
 251                 w->current_image = image;
 252         return ret;
 253 }
 254
 255
 256 /* Returns the compression type of the WIM file. */
 257 WIMLIBAPI int wimlib_get_compression_type(const WIMStruct *w)
 258 {
 259         return wim_hdr_flags_compression_type(w->hdr.flags);
 260 }
 261
 262 WIMLIBAPI const char *wimlib_get_compression_type_string(int ctype)
 263 {
 264         switch (ctype) {
 265                 case WIMLIB_COMPRESSION_TYPE_NONE:
 266                         return "None";
 267                 case WIMLIB_COMPRESSION_TYPE_LZX:
 268                         return "LZX";
 269                 case WIMLIB_COMPRESSION_TYPE_XPRESS:
 270                         return "XPRESS";
 271                 default:
 272                         return "Invalid";
 273         }
 274 }
 275
 276 /*
 277  * Returns the number of an image in the WIM file, given a string that is either
 278  * the number of the image, or the name of the image.  The images are numbered
 279  * starting at 1.
 280  */
 281 WIMLIBAPI int wimlib_resolve_image(WIMStruct *w, const char *image_name_or_num)
 282 {
 283         char *p;
 284         int image;
 285         int i;
 286
 287         if (!image_name_or_num || !*image_name_or_num)
 288                 return WIMLIB_NO_IMAGE;
 289
 290         if (strcmp(image_name_or_num, "all") == 0
 291             || strcmp(image_name_or_num, "*") == 0)
 292                 return WIMLIB_ALL_IMAGES;
 293         image = strtol(image_name_or_num, &p, 10);
 294         if (p != image_name_or_num && *p == '\0' && image > 0) {
 295                 if (image > w->hdr.image_count)
 296                         return WIMLIB_NO_IMAGE;
 297                 return image;
 298         } else {
 299                 for (i = 1; i <= w->hdr.image_count; i++) {
 300                         if (strcmp(image_name_or_num,
 301                                    wimlib_get_image_name(w, i)) == 0)
 302                                 return i;
 303                 }
 304                 return WIMLIB_NO_IMAGE;
 305         }
 306 }
 307
 308
 309 /* Prints some basic information about a WIM file. */
 310 WIMLIBAPI void wimlib_print_wim_information(const WIMStruct *w)
 311 {
 312         const struct wim_header *hdr;
 313
 314         hdr = &w->hdr;
 315         puts("WIM Information:");
 316         puts("----------------");
 317         printf("Path:           %s\n", w->filename);
 318         fputs ("GUID:           0x", stdout);
 319         print_byte_field(hdr->guid, WIM_GID_LEN);
 320         putchar('\n');
 321         printf("Image Count:    %d\n", hdr->image_count);
 322         printf("Compression:    %s\n", wimlib_get_compression_type_string(
 323                                                 wimlib_get_compression_type(w)));
 324         printf("Part Number:    %d/%d\n", hdr->part_number, hdr->total_parts);
 325         printf("Boot Index:     %d\n", hdr->boot_idx);
 326         printf("Size:           %"PRIu64" bytes\n",
 327                                 wim_info_get_total_bytes(w->wim_info));
 328         printf("Integrity Info: %s\n", (w->hdr.integrity.offset != 0) ? "yes" : "no");
 329         putchar('\n');
 330 }
 331
 332 WIMLIBAPI bool wimlib_has_integrity_table(const WIMStruct *w)
 333 {
 334         return w->hdr.integrity.size != 0;
 335 }
 336
 337 WIMLIBAPI void wimlib_print_available_images(const WIMStruct *w, int image)
 338 {
 339         int first;
 340         int last;
 341         int i;
 342         int n;
 343         if (image == WIMLIB_ALL_IMAGES) {
 344                 n = printf("Available Images:\n");
 345                 first = 1;
 346                 last = w->hdr.image_count;
 347         } else if (image >= 1 && image <= w->hdr.image_count) {
 348                 n = printf("Information for Image %d\n", image);
 349                 first = image;
 350                 last = image;
 351         } else {
 352                 printf("wimlib_print_available_images(): Invalid image %d",
 353                        image);
 354                 return;
 355         }
 356         for (i = 0; i < n - 1; i++)
 357                 putchar('-');
 358         putchar('\n');
 359         for (i = first; i <= last; i++)
 360                 print_image_info(w->wim_info, i);
 361 }
 362
 363
 364 /* Prints the metadata for the specified image, which may be WIMLIB_ALL_IMAGES, but
 365  * not WIMLIB_NO_IMAGE. */
 366 WIMLIBAPI int wimlib_print_metadata(WIMStruct *w, int image)
 367 {
 368         if (w->hdr.part_number != 1) {
 369                 ERROR("Cannot show the metadata from part %hu of a %hu-part split WIM!",
 370                        w->hdr.part_number, w->hdr.total_parts);
 371                 ERROR("Select the first part of the split WIM to see the metadata.");
 372                 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
 373         }
 374         return for_image(w, image, image_print_metadata);
 375 }
 376
 377 WIMLIBAPI int wimlib_print_files(WIMStruct *w, int image)
 378 {
 379         if (w->hdr.part_number != 1) {
 380                 ERROR("Cannot list the files from part %hu of a %hu-part split WIM!",
 381                        w->hdr.part_number, w->hdr.total_parts);
 382                 ERROR("Select the first part of the split WIM if you'd like to list the files.");
 383                 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
 384         }
 385         return for_image(w, image, image_print_files);
 386 }
 387
 388 /* Sets the index of the bootable image. */
 389 WIMLIBAPI int wimlib_set_boot_idx(WIMStruct *w, int boot_idx)
 390 {
 391         if (w->hdr.total_parts != 1) {
 392                 ERROR("Cannot modify the boot index of a split WIM!");
 393                 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
 394         }
 395         if (boot_idx < 0 || boot_idx > w->hdr.image_count)
 396                 return WIMLIB_ERR_INVALID_IMAGE;
 397         w->hdr.boot_idx = boot_idx;
 398
 399         if (boot_idx == 0) {
 400                 memset(&w->hdr.boot_metadata_res_entry, 0,
 401                        sizeof(struct resource_entry));
 402         } else {
 403                 memcpy(&w->hdr.boot_metadata_res_entry,
 404                        &w->image_metadata[
 405                           boot_idx - 1].metadata_lte->resource_entry,
 406                        sizeof(struct resource_entry));
 407         }
 408
 409         return 0;
 410 }
 411
 412 WIMLIBAPI int wimlib_get_part_number(const WIMStruct *w, int *total_parts_ret)
 413 {
 414         if (total_parts_ret)
 415                 *total_parts_ret = w->hdr.total_parts;
 416         return w->hdr.part_number;
 417 }
 418
 419
 420 WIMLIBAPI int wimlib_get_boot_idx(const WIMStruct *w)
 421 {
 422         return w->hdr.boot_idx;
 423 }
 424
 425 /*
 426  * Begins the reading of a WIM file; opens the file and reads its header and
 427  * lookup table, and optionally checks the integrity.
 428  */
 429 static int begin_read(WIMStruct *w, const char *in_wim_path, int open_flags,
 430                       wimlib_progress_func_t progress_func)
 431 {
 432         int ret;
 433         int xml_num_images;
 434
 435         DEBUG("Reading the WIM file `%s'", in_wim_path);
 436
 437         w->fp = fopen(in_wim_path, "rb");
 438         if (!w->fp) {
 439                 ERROR_WITH_ERRNO("Failed to open `%s' for reading",
 440                                  in_wim_path);
 441                 return WIMLIB_ERR_OPEN;
 442         }
 443
 444         /* The absolute path to the WIM is requested so that wimlib_overwrite()
 445          * still works even if the process changes its working directory.  This
 446          * actually happens if a WIM is mounted read-write, since the FUSE
 447          * thread changes directory to "/", and it needs to be able to find the
 448          * WIM file again.
 449          *
 450          * This will break if the full path to the WIM changes in the
 451          * intervening time...
 452          */
 453         w->filename = realpath(in_wim_path, NULL);
 454         if (!w->filename) {
 455                 ERROR_WITH_ERRNO("Failed to resolve WIM filename");
 456                 if (errno == ENOMEM)
 457                         return WIMLIB_ERR_NOMEM;
 458                 else
 459                         return WIMLIB_ERR_OPEN;
 460         }
 461
 462         ret = read_header(w->fp, &w->hdr, open_flags);
 463         if (ret != 0)
 464                 return ret;
 465
 466         DEBUG("According to header, WIM contains %u images", w->hdr.image_count);
 467
 468         /* If the boot index is invalid, print a warning and set it to 0 */
 469         if (w->hdr.boot_idx > w->hdr.image_count) {
 470                 WARNING("In `%s', image %u is marked as bootable, "
 471                         "but there are only %u images in the WIM",
 472                         in_wim_path, w->hdr.boot_idx, w->hdr.image_count);
 473                 w->hdr.boot_idx = 0;
 474         }
 475
 476         if (wimlib_get_compression_type(w) == WIMLIB_COMPRESSION_TYPE_INVALID) {
 477                 ERROR("Invalid compression type (WIM header flags = 0x%x)",
 478                       w->hdr.flags);
 479                 return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
 480         }
 481
 482         if (open_flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY) {
 483                 ret = check_wim_integrity(w, progress_func);
 484                 if (ret == WIM_INTEGRITY_NONEXISTENT) {
 485                         WARNING("No integrity information for `%s'; skipping "
 486                                 "integrity check.", in_wim_path);
 487                 } else if (ret == WIM_INTEGRITY_NOT_OK) {
 488                         ERROR("WIM is not intact! (Failed integrity check)");
 489                         return WIMLIB_ERR_INTEGRITY;
 490                 } else if (ret != WIM_INTEGRITY_OK) {
 491                         return ret;
 492                 }
 493         }
 494
 495         ret = read_lookup_table(w);
 496         if (ret != 0)
 497                 return ret;
 498
 499         if (w->hdr.image_count != 0) {
 500                 w->image_metadata = CALLOC(w->hdr.image_count,
 501                                            sizeof(struct wim_image_metadata));
 502
 503                 if (!w->image_metadata) {
 504                         ERROR("Failed to allocate memory for %u image metadata structures",
 505                               w->hdr.image_count);
 506                         return WIMLIB_ERR_NOMEM;
 507                 }
 508         }
 509         w->current_image = 0;
 510
 511         DEBUG("Looking for metadata resources in the lookup table.");
 512
 513         /* Find the images in the WIM by searching the lookup table. */
 514         ret = for_lookup_table_entry(w->lookup_table,
 515                                      append_metadata_resource_entry, w);
 516
 517         if (ret != 0)
 518                 return ret;
 519
 520         /* Make sure all the expected images were found.  (We already have
 521          * returned WIMLIB_ERR_IMAGE_COUNT if *extra* images were found) */
 522         if (w->current_image != w->hdr.image_count &&
 523             w->hdr.part_number == 1)
 524         {
 525                 ERROR("Only found %d images in WIM, but expected %u",
 526                       w->current_image, w->hdr.image_count);
 527                 return WIMLIB_ERR_IMAGE_COUNT;
 528         }
 529
 530         /* Sort images by the position of their metadata resources.  I'm
 531          * assuming that is what determines the other of the images in the WIM
 532          * file, rather than their order in the lookup table, which is random
 533          * because of hashing. */
 534         qsort(w->image_metadata, w->current_image,
 535               sizeof(struct wim_image_metadata), sort_image_metadata_by_position);
 536
 537         w->current_image = WIMLIB_NO_IMAGE;
 538
 539         /* Read the XML data. */
 540         ret = read_xml_data(w->fp, &w->hdr.xml_res_entry,
 541                             &w->xml_data, &w->wim_info);
 542
 543         if (ret != 0)
 544                 return ret;
 545
 546         xml_num_images = wim_info_get_num_images(w->wim_info);
 547         if (xml_num_images != w->hdr.image_count) {
 548                 ERROR("In the file `%s', there are %u <IMAGE> elements "
 549                       "in the XML data,", in_wim_path, xml_num_images);
 550                 ERROR("but %u images in the WIM!  There must be exactly one "
 551                       "<IMAGE> element per image.", w->hdr.image_count);
 552                 return WIMLIB_ERR_IMAGE_COUNT;
 553         }
 554
 555         DEBUG("Done beginning read of WIM file `%s'.", in_wim_path);
 556         return 0;
 557 }
 558
 559
 560 /*
 561  * Opens a WIM file and creates a WIMStruct for it.
 562  */
 563 WIMLIBAPI int wimlib_open_wim(const char *wim_file, int open_flags,
 564                               WIMStruct **w_ret,
 565                               wimlib_progress_func_t progress_func)
 566 {
 567         WIMStruct *w;
 568         int ret;
 569
 570         if (!wim_file || !w_ret)
 571                 return WIMLIB_ERR_INVALID_PARAM;
 572
 573         w = new_wim_struct();
 574         if (!w)
 575                 return WIMLIB_ERR_NOMEM;
 576
 577         ret = begin_read(w, wim_file, open_flags, progress_func);
 578         if (ret == 0)
 579                 *w_ret = w;
 580         else
 581                 wimlib_free(w);
 582         return ret;
 583 }
 584
 585 void destroy_image_metadata(struct wim_image_metadata *imd,
 586                             struct wim_lookup_table *table)
 587 {
 588         free_dentry_tree(imd->root_dentry, table);
 589         free_security_data(imd->security_data);
 590
 591         /* Get rid of the lookup table entry for this image's metadata resource
 592          * */
 593         if (table) {
 594                 lookup_table_unlink(table, imd->metadata_lte);
 595                 free_lookup_table_entry(imd->metadata_lte);
 596         }
 597 }
 598
 599 /* Frees the memory for the WIMStruct, including all internal memory; also
 600  * closes all files associated with the WIMStruct.  */
 601 WIMLIBAPI void wimlib_free(WIMStruct *w)
 602 {
 603         DEBUG2("Freeing WIMStruct");
 604
 605         if (!w)
 606                 return;
 607         if (w->fp)
 608                 fclose(w->fp);
 609         if (w->out_fp)
 610                 fclose(w->out_fp);
 611
 612 #ifdef WITH_FUSE
 613         if (w->fp_tab) {
 614                 for (size_t i = 0; i < w->num_allocated_fps; i++)
 615                         if (w->fp_tab[i])
 616                                 fclose(w->fp_tab[i]);
 617                 FREE(w->fp_tab);
 618         }
 619         pthread_mutex_destroy(&w->fp_tab_mutex);
 620 #endif
 621
 622         free_lookup_table(w->lookup_table);
 623
 624         FREE(w->filename);
 625         FREE(w->xml_data);
 626         free_wim_info(w->wim_info);
 627         if (w->image_metadata) {
 628                 for (unsigned i = 0; i < w->hdr.image_count; i++)
 629                         destroy_image_metadata(&w->image_metadata[i], NULL);
 630                 FREE(w->image_metadata);
 631         }
 632 #ifdef WITH_NTFS_3G
 633         if (w->ntfs_vol) {
 634                 DEBUG("Unmounting NTFS volume");
 635                 ntfs_umount(w->ntfs_vol, FALSE);
 636         }
 637 #endif
 638         FREE(w);
 639 }
 640
 641 /* Get global memory allocations out of the way.  Not strictly necessary in
 642  * single-threaded programs like 'imagex'. */
 643 WIMLIBAPI int wimlib_global_init()
 644 {
 645         libxml_global_init();
 646         return iconv_global_init();
 647 }
 648
 649 /* Free global memory allocations.  Not strictly necessary if the process using
 650  * wimlib is just about to exit (as is the case for 'imagex'). */
 651 WIMLIBAPI void wimlib_global_cleanup()
 652 {
 653         libxml_global_cleanup();
 654         iconv_global_cleanup();
 655 }