2 * wim.c - Stuff that doesn't fit into any other file
6 * Copyright (C) 2012, 2013 Eric Biggers
8 * This file is part of wimlib, a library for working with WIM files.
10 * wimlib is free software; you can redistribute it and/or modify it under the
11 * terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 3 of the License, or (at your option)
15 * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
16 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
17 * A PARTICULAR PURPOSE. See the GNU General Public License for more
20 * You should have received a copy of the GNU General Public License
21 * along with wimlib; if not, see http://www.gnu.org/licenses/.
28 #include "wimlib/error.h"
29 #include "wimlib/dentry.h"
30 #include "wimlib/encoding.h"
31 #include "wimlib/file_io.h"
32 #include "wimlib/integrity.h"
33 #include "wimlib/lookup_table.h"
34 #include "wimlib/metadata.h"
36 # include "wimlib/ntfs_3g.h" /* for do_ntfs_umount() */
38 #include "wimlib/security.h"
39 #include "wimlib/wim.h"
40 #include "wimlib/xml.h"
43 # include "wimlib/win32.h" /* for realpath() replacement */
49 # include <langinfo.h>
57 image_print_metadata(WIMStruct *w)
59 DEBUG("Printing metadata for image %d", w->current_image);
60 print_wim_security_data(wim_security_data(w));
61 return for_dentry_in_tree(wim_root_dentry(w), print_dentry,
67 image_print_files(WIMStruct *w)
69 return for_dentry_in_tree(wim_root_dentry(w), print_dentry_full_path,
76 WIMStruct *w = CALLOC(1, sizeof(WIMStruct));
85 * Calls a function on images in the WIM. If @image is WIMLIB_ALL_IMAGES, @visitor
86 * is called on the WIM once for each image, with each image selected as the
87 * current image in turn. If @image is a certain image, @visitor is called on
88 * the WIM only once, with that image selected.
91 for_image(WIMStruct *w, int image, int (*visitor)(WIMStruct *))
98 if (image == WIMLIB_ALL_IMAGES) {
100 end = w->hdr.image_count;
101 } else if (image >= 1 && image <= w->hdr.image_count) {
105 return WIMLIB_ERR_INVALID_IMAGE;
107 for (i = start; i <= end; i++) {
108 ret = select_wim_image(w, i);
119 * Creates a WIMStruct for a new WIM file.
122 wimlib_create_new_wim(int ctype, WIMStruct **w_ret)
125 struct wim_lookup_table *table;
128 wimlib_global_init(WIMLIB_INIT_FLAG_ASSUME_UTF8);
130 DEBUG("Creating new WIM with %"TS" compression.",
131 wimlib_get_compression_type_string(ctype));
133 /* Allocate the WIMStruct. */
134 w = new_wim_struct();
136 return WIMLIB_ERR_NOMEM;
138 ret = init_header(&w->hdr, ctype);
142 table = new_lookup_table(9001);
144 ret = WIMLIB_ERR_NOMEM;
147 w->lookup_table = table;
149 w->compression_type = ctype;
158 select_wim_image(WIMStruct *w, int image)
160 struct wim_image_metadata *imd;
163 DEBUG("Selecting image %d", image);
165 if (image == WIMLIB_NO_IMAGE) {
166 ERROR("Invalid image: %d", WIMLIB_NO_IMAGE);
167 return WIMLIB_ERR_INVALID_IMAGE;
170 if (image == w->current_image)
173 if (image < 1 || image > w->hdr.image_count) {
174 ERROR("Cannot select image %d: There are only %u images",
175 image, w->hdr.image_count);
176 return WIMLIB_ERR_INVALID_IMAGE;
179 /* If a valid image is currently selected, it can be freed if it is not
181 if (w->current_image != WIMLIB_NO_IMAGE) {
182 imd = wim_get_current_image_metadata(w);
183 if (!imd->modified) {
184 wimlib_assert(list_empty(&imd->unhashed_streams));
185 DEBUG("Freeing image %u", w->current_image);
186 destroy_image_metadata(imd, NULL, false);
189 w->current_image = image;
190 imd = wim_get_current_image_metadata(w);
191 if (imd->root_dentry || imd->modified) {
195 DEBUG("Reading metadata resource specified by the following "
196 "lookup table entry:");
197 print_lookup_table_entry(imd->metadata_lte, stderr);
199 ret = read_metadata_resource(w, imd);
201 w->current_image = WIMLIB_NO_IMAGE;
207 WIMLIBAPI const tchar *
208 wimlib_get_compression_type_string(int ctype)
211 case WIMLIB_COMPRESSION_TYPE_NONE:
213 case WIMLIB_COMPRESSION_TYPE_LZX:
215 case WIMLIB_COMPRESSION_TYPE_XPRESS:
223 * Returns the number of an image in the WIM file, given a string that is either
224 * the number of the image, or the name of the image. The images are numbered
228 wimlib_resolve_image(WIMStruct *w, const tchar *image_name_or_num)
234 if (!image_name_or_num || !*image_name_or_num)
235 return WIMLIB_NO_IMAGE;
237 if (!tstrcasecmp(image_name_or_num, T("all"))
238 || !tstrcasecmp(image_name_or_num, T("*")))
239 return WIMLIB_ALL_IMAGES;
240 image = tstrtol(image_name_or_num, &p, 10);
241 if (p != image_name_or_num && *p == T('\0') && image > 0) {
242 if (image > w->hdr.image_count)
243 return WIMLIB_NO_IMAGE;
246 for (i = 1; i <= w->hdr.image_count; i++) {
247 if (!tstrcmp(image_name_or_num,
248 wimlib_get_image_name(w, i)))
251 return WIMLIB_NO_IMAGE;
255 /* Prints some basic information about a WIM file. */
257 wimlib_print_wim_information(const WIMStruct *wim)
259 struct wimlib_wim_info info;
261 wimlib_get_wim_info((WIMStruct*)wim, &info);
263 tputs(T("WIM Information:"));
264 tputs(T("----------------"));
265 tprintf(T("Path: %"TS"\n"), wim->filename);
266 tfputs(T("GUID: 0x"), stdout);
267 print_byte_field(info.guid, WIM_GID_LEN, stdout);
269 tprintf(T("Image Count: %d\n"), info.image_count);
270 tprintf(T("Compression: %"TS"\n"),
271 wimlib_get_compression_type_string(info.compression_type));
272 tprintf(T("Part Number: %d/%d\n"), info.part_number, info.total_parts);
273 tprintf(T("Boot Index: %d\n"), info.boot_index);
274 tprintf(T("Size: %"PRIu64" bytes\n"), info.total_bytes);
275 tprintf(T("Integrity Info: %"TS"\n"),
276 info.has_integrity_table ? T("yes") : T("no"));
277 tprintf(T("Relative path junction: %"TS"\n"),
278 info.has_rpfix ? T("yes") : T("no"));
283 wimlib_print_available_images(const WIMStruct *w, int image)
289 if (image == WIMLIB_ALL_IMAGES) {
290 n = tprintf(T("Available Images:\n"));
292 last = w->hdr.image_count;
293 } else if (image >= 1 && image <= w->hdr.image_count) {
294 n = tprintf(T("Information for Image %d\n"), image);
298 tprintf(T("wimlib_print_available_images(): Invalid image %d"),
302 for (i = 0; i < n - 1; i++)
305 for (i = first; i <= last; i++)
306 print_image_info(w->wim_info, i);
310 /* Prints the metadata for the specified image, which may be WIMLIB_ALL_IMAGES, but
311 * not WIMLIB_NO_IMAGE. */
313 wimlib_print_metadata(WIMStruct *w, int image)
315 if (w->hdr.part_number != 1) {
316 ERROR("Cannot show the metadata from part %hu of a %hu-part split WIM!",
317 w->hdr.part_number, w->hdr.total_parts);
318 ERROR("Select the first part of the split WIM to see the metadata.");
319 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
321 return for_image(w, image, image_print_metadata);
325 wimlib_print_files(WIMStruct *w, int image)
327 if (w->hdr.part_number != 1) {
328 ERROR("Cannot list the files from part %hu of a %hu-part split WIM!",
329 w->hdr.part_number, w->hdr.total_parts);
330 ERROR("Select the first part of the split WIM if you'd like to list the files.");
331 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
333 return for_image(w, image, image_print_files);
337 wimlib_get_wim_info(WIMStruct *wim, struct wimlib_wim_info *info)
339 memset(info, 0, sizeof(struct wimlib_wim_info));
340 memcpy(info->guid, wim->hdr.guid, WIMLIB_GUID_LEN);
341 info->image_count = wim->hdr.image_count;
342 info->boot_index = wim->hdr.boot_idx;
343 info->wim_version = WIM_VERSION;
344 info->chunk_size = WIM_CHUNK_SIZE;
345 info->part_number = wim->hdr.part_number;
346 info->total_parts = wim->hdr.total_parts;
347 info->compression_type = wim->compression_type;
349 info->total_bytes = wim->wim_info->total_bytes;
351 info->total_bytes = 0;
352 info->has_integrity_table = wim->hdr.integrity.offset != 0;
353 info->opened_from_file = (wim->filename != NULL);
354 info->is_readonly == (wim->hdr.flags & WIM_HDR_FLAG_READONLY) ||
355 (wim->hdr.total_parts != 1) ||
356 (wim->filename && taccess(wim->filename, W_OK));
357 info->has_rpfix = (wim->hdr.flags & WIM_HDR_FLAG_RP_FIX) != 0;
358 info->is_marked_readonly = (wim->hdr.flags & WIM_HDR_FLAG_READONLY) != 0;
359 info->write_in_progress = (wim->hdr.flags & WIM_HDR_FLAG_WRITE_IN_PROGRESS) != 0;
360 info->metadata_only = (wim->hdr.flags & WIM_HDR_FLAG_METADATA_ONLY) != 0;
361 info->resource_only = (wim->hdr.flags & WIM_HDR_FLAG_RESOURCE_ONLY) != 0;
362 info->spanned = (wim->hdr.flags & WIM_HDR_FLAG_SPANNED) != 0;
369 wimlib_get_boot_idx(const WIMStruct *wim)
371 struct wimlib_wim_info info;
373 wimlib_get_wim_info((WIMStruct*)wim, &info);
374 return info.boot_index;
379 wimlib_get_compression_type(const WIMStruct *wim)
381 struct wimlib_wim_info info;
383 wimlib_get_wim_info((WIMStruct*)wim, &info);
384 return info.compression_type;
389 wimlib_get_num_images(const WIMStruct *wim)
391 struct wimlib_wim_info info;
393 wimlib_get_wim_info((WIMStruct*)wim, &info);
394 return info.image_count;
399 wimlib_get_part_number(const WIMStruct *wim, int *total_parts_ret)
401 struct wimlib_wim_info info;
403 wimlib_get_wim_info((WIMStruct*)wim, &info);
405 *total_parts_ret = info.total_parts;
406 return info.part_number;
411 wimlib_has_integrity_table(const WIMStruct *wim)
413 struct wimlib_wim_info info;
415 wimlib_get_wim_info((WIMStruct*)wim, &info);
416 return info.has_integrity_table;
420 wimlib_set_wim_info(WIMStruct *wim, const struct wimlib_wim_info *info, int which)
424 if (which & WIMLIB_CHANGE_READONLY_FLAG) {
425 if (info->is_marked_readonly)
426 wim->hdr.flags |= WIM_HDR_FLAG_READONLY;
428 wim->hdr.flags &= ~WIM_HDR_FLAG_READONLY;
431 if ((which & ~WIMLIB_CHANGE_READONLY_FLAG) == 0)
434 ret = can_modify_wim(wim);
438 if (which & WIMLIB_CHANGE_GUID)
439 memcpy(wim->hdr.guid, info->guid, WIM_GID_LEN);
441 if (which & WIMLIB_CHANGE_BOOT_INDEX) {
442 if (info->boot_index < 0 || info->boot_index > wim->hdr.image_count)
444 ERROR("%u is not 0 or a valid image in the WIM to mark as bootable",
446 return WIMLIB_ERR_INVALID_IMAGE;
448 wim->hdr.boot_idx = info->boot_index;
451 if (which & WIMLIB_CHANGE_RPFIX_FLAG) {
453 wim->hdr.flags |= WIM_HDR_FLAG_RP_FIX;
455 wim->hdr.flags &= ~WIM_HDR_FLAG_RP_FIX;
462 wimlib_set_boot_idx(WIMStruct *wim, int boot_idx)
464 struct wimlib_wim_info info;
466 info.boot_index = boot_idx;
467 return wimlib_set_wim_info(wim, &info, WIMLIB_CHANGE_BOOT_INDEX);
471 do_open_wim(const tchar *filename, int *fd_ret)
475 fd = topen(filename, O_RDONLY | O_BINARY);
477 ERROR_WITH_ERRNO("Can't open \"%"TS"\" read-only", filename);
478 return WIMLIB_ERR_OPEN;
485 reopen_wim(WIMStruct *w)
487 wimlib_assert(w->in_fd == -1);
488 return do_open_wim(w->filename, &w->in_fd);
492 close_wim(WIMStruct *w)
494 if (w->in_fd != -1) {
502 * Begins the reading of a WIM file; opens the file and reads its header and
503 * lookup table, and optionally checks the integrity.
506 begin_read(WIMStruct *w, const tchar *in_wim_path, int open_flags,
507 wimlib_progress_func_t progress_func)
512 DEBUG("Reading the WIM file `%"TS"'", in_wim_path);
514 ret = do_open_wim(in_wim_path, &w->in_fd);
518 /* The absolute path to the WIM is requested so that wimlib_overwrite()
519 * still works even if the process changes its working directory. This
520 * actually happens if a WIM is mounted read-write, since the FUSE
521 * thread changes directory to "/", and it needs to be able to find the
524 * This will break if the full path to the WIM changes in the
525 * intervening time...
527 * Warning: in Windows native builds, realpath() calls the replacement
528 * function in win32.c.
530 w->filename = realpath(in_wim_path, NULL);
532 ERROR_WITH_ERRNO("Failed to resolve WIM filename");
534 return WIMLIB_ERR_NOMEM;
536 return WIMLIB_ERR_OPEN;
539 ret = read_header(w->filename, w->in_fd, &w->hdr);
543 if (w->hdr.flags & WIM_HDR_FLAG_WRITE_IN_PROGRESS) {
544 WARNING("The WIM_HDR_FLAG_WRITE_IN_PROGRESS is set in the header of \"%"TS"\".\n"
545 " It may be being changed by another process, or a process\n"
546 " may have crashed while writing the WIM.", in_wim_path);
549 if (open_flags & WIMLIB_OPEN_FLAG_WRITE_ACCESS) {
550 ret = can_modify_wim(w);
555 if (w->hdr.total_parts != 1 && !(open_flags & WIMLIB_OPEN_FLAG_SPLIT_OK)) {
556 ERROR("\"%"TS"\": This WIM is part %u of a %u-part WIM",
557 in_wim_path, w->hdr.part_number, w->hdr.total_parts);
558 return WIMLIB_ERR_SPLIT_UNSUPPORTED;
561 DEBUG("According to header, WIM contains %u images", w->hdr.image_count);
563 /* If the boot index is invalid, print a warning and set it to 0 */
564 if (w->hdr.boot_idx > w->hdr.image_count) {
565 WARNING("In `%"TS"', image %u is marked as bootable, "
566 "but there are only %u images in the WIM",
567 in_wim_path, w->hdr.boot_idx, w->hdr.image_count);
571 /* Check and cache the compression type */
572 if (w->hdr.flags & WIM_HDR_FLAG_COMPRESSION) {
573 if (w->hdr.flags & WIM_HDR_FLAG_COMPRESS_LZX) {
574 if (w->hdr.flags & WIM_HDR_FLAG_COMPRESS_XPRESS) {
575 ERROR("Multiple compression flags are set in \"%"TS"\"",
577 return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
579 w->compression_type = WIMLIB_COMPRESSION_TYPE_LZX;
580 } else if (w->hdr.flags & WIM_HDR_FLAG_COMPRESS_XPRESS) {
581 w->compression_type = WIMLIB_COMPRESSION_TYPE_XPRESS;
583 ERROR("The compression flag is set on \"%"TS"\", but "
584 "neither the XPRESS nor LZX flag is set",
586 return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
589 BUILD_BUG_ON(WIMLIB_COMPRESSION_TYPE_NONE != 0);
592 if (open_flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY) {
593 ret = check_wim_integrity(w, progress_func);
594 if (ret == WIM_INTEGRITY_NONEXISTENT) {
595 WARNING("No integrity information for `%"TS"'; skipping "
596 "integrity check.", in_wim_path);
597 } else if (ret == WIM_INTEGRITY_NOT_OK) {
598 ERROR("WIM is not intact! (Failed integrity check)");
599 return WIMLIB_ERR_INTEGRITY;
600 } else if (ret != WIM_INTEGRITY_OK) {
605 if (w->hdr.image_count != 0 && w->hdr.part_number == 1) {
606 w->image_metadata = new_image_metadata_array(w->hdr.image_count);
607 if (!w->image_metadata)
608 return WIMLIB_ERR_NOMEM;
611 ret = read_lookup_table(w);
615 ret = read_xml_data(w->in_fd, &w->hdr.xml_res_entry, &w->wim_info);
619 xml_num_images = wim_info_get_num_images(w->wim_info);
620 if (xml_num_images != w->hdr.image_count) {
621 ERROR("In the file `%"TS"', there are %u <IMAGE> elements "
622 "in the XML data,", in_wim_path, xml_num_images);
623 ERROR("but %u images in the WIM! There must be exactly one "
624 "<IMAGE> element per image.", w->hdr.image_count);
625 return WIMLIB_ERR_IMAGE_COUNT;
628 DEBUG("Done beginning read of WIM file `%"TS"'.", in_wim_path);
633 * Opens a WIM file and creates a WIMStruct for it.
636 wimlib_open_wim(const tchar *wim_file, int open_flags,
638 wimlib_progress_func_t progress_func)
643 wimlib_global_init(WIMLIB_INIT_FLAG_ASSUME_UTF8);
645 ret = WIMLIB_ERR_INVALID_PARAM;
646 if (!wim_file || !wim_ret)
649 ret = WIMLIB_ERR_NOMEM;
650 wim = new_wim_struct();
654 ret = begin_read(wim, wim_file, open_flags, progress_func);
656 goto out_wimlib_free;
668 destroy_image_metadata(struct wim_image_metadata *imd,
669 struct wim_lookup_table *table,
670 bool free_metadata_lte)
672 free_dentry_tree(imd->root_dentry, table);
673 imd->root_dentry = NULL;
674 free_wim_security_data(imd->security_data);
675 imd->security_data = NULL;
677 if (free_metadata_lte) {
678 free_lookup_table_entry(imd->metadata_lte);
679 imd->metadata_lte = NULL;
682 struct wim_lookup_table_entry *lte, *tmp;
683 list_for_each_entry_safe(lte, tmp, &imd->unhashed_streams, unhashed_list)
684 free_lookup_table_entry(lte);
686 INIT_LIST_HEAD(&imd->unhashed_streams);
687 INIT_LIST_HEAD(&imd->inode_list);
690 do_ntfs_umount(imd->ntfs_vol);
691 imd->ntfs_vol = NULL;
697 put_image_metadata(struct wim_image_metadata *imd,
698 struct wim_lookup_table *table)
700 if (imd && --imd->refcnt == 0) {
701 destroy_image_metadata(imd, table, true);
706 /* Appends the specified image metadata structure to the array of image metadata
707 * for a WIM, and increments the image count. */
709 append_image_metadata(WIMStruct *w, struct wim_image_metadata *imd)
711 struct wim_image_metadata **imd_array;
713 DEBUG("Reallocating image metadata array for image_count = %u",
714 w->hdr.image_count + 1);
715 imd_array = REALLOC(w->image_metadata,
716 sizeof(w->image_metadata[0]) * (w->hdr.image_count + 1));
719 return WIMLIB_ERR_NOMEM;
720 w->image_metadata = imd_array;
721 imd_array[w->hdr.image_count++] = imd;
726 struct wim_image_metadata *
727 new_image_metadata(void)
729 struct wim_image_metadata *imd;
731 imd = CALLOC(1, sizeof(*imd));
734 INIT_LIST_HEAD(&imd->inode_list);
735 INIT_LIST_HEAD(&imd->unhashed_streams);
736 DEBUG("Created new image metadata (refcnt=1)");
738 ERROR_WITH_ERRNO("Failed to allocate new image metadata structure");
743 struct wim_image_metadata **
744 new_image_metadata_array(unsigned num_images)
746 struct wim_image_metadata **imd_array;
748 DEBUG("Creating new image metadata array for %u images",
751 imd_array = CALLOC(num_images, sizeof(imd_array[0]));
754 ERROR("Failed to allocate memory for %u image metadata structures",
758 for (unsigned i = 0; i < num_images; i++) {
759 imd_array[i] = new_image_metadata();
761 for (unsigned j = 0; j < i; j++)
762 put_image_metadata(imd_array[j], NULL);
770 /* Checksum all streams that are unhashed (other than the metadata streams),
771 * merging them into the lookup table as needed. This is a no-op unless the
772 * library has previously used to add or mount an image using the same
775 wim_checksum_unhashed_streams(WIMStruct *w)
778 for (int i = 0; i < w->hdr.image_count; i++) {
779 struct wim_lookup_table_entry *lte, *tmp;
780 struct wim_image_metadata *imd = w->image_metadata[i];
781 image_for_each_unhashed_stream_safe(lte, tmp, imd) {
782 ret = hash_unhashed_stream(lte, w->lookup_table, NULL);
791 * can_modify_wim - Check if a given WIM is writeable. This is only the case if
792 * it meets the following three conditions:
794 * 1. Write access is allowed to the underlying file (if any) at the filesystem level.
795 * 2. The WIM is not part of a spanned set.
796 * 3. The WIM_HDR_FLAG_READONLY flag is not set in the WIM header.
798 * Return value is 0 if writable; WIMLIB_ERR_WIM_IS_READONLY otherwise.
801 can_modify_wim(WIMStruct *wim)
804 if (taccess(wim->filename, W_OK)) {
805 ERROR_WITH_ERRNO("Can't modify \"%"TS"\"", wim->filename);
806 return WIMLIB_ERR_WIM_IS_READONLY;
809 if (wim->hdr.total_parts != 1) {
810 ERROR("Cannot modify \"%"TS"\": is part of a spanned set",
812 return WIMLIB_ERR_WIM_IS_READONLY;
814 if (wim->hdr.flags & WIM_HDR_FLAG_READONLY) {
815 ERROR("Cannot modify \"%"TS"\": is marked read-only",
817 return WIMLIB_ERR_WIM_IS_READONLY;
823 * can_delete_from_wim - Check if files or images can be deleted from a given
826 * This theoretically should be exactly the same as can_modify_wim(), but
827 * unfortunately, due to bugs in Microsoft's software that generate incorrect
828 * reference counts for some WIM resources, we need to run expensive
829 * verifications to make sure the reference counts are correct on all WIM
830 * resources. Otherwise we might delete a WIM resource whose reference count
831 * has fallen to 0, but is actually still referenced somewhere.
834 can_delete_from_wim(WIMStruct *wim)
838 ret = can_modify_wim(wim);
841 if (!wim->refcnts_ok)
842 wim_recalculate_refcnts(wim);
846 /* Frees the memory for the WIMStruct, including all internal memory; also
847 * closes all files associated with the WIMStruct. */
849 wimlib_free(WIMStruct *w)
851 DEBUG("Freeing WIMStruct");
860 free_lookup_table(w->lookup_table);
863 free_wim_info(w->wim_info);
864 if (w->image_metadata) {
865 for (unsigned i = 0; i < w->hdr.image_count; i++)
866 put_image_metadata(w->image_metadata[i], NULL);
867 FREE(w->image_metadata);
870 DEBUG("Freed WIMStruct");
874 test_locale_ctype_utf8(void)
879 char *ctype = nl_langinfo(CODESET);
881 return (!strstr(ctype, "UTF-8") ||
882 !strstr(ctype, "UTF8") ||
883 !strstr(ctype, "utf8") ||
884 !strstr(ctype, "utf-8"));
889 wimlib_global_init(int init_flags)
891 static bool already_inited = false;
895 libxml_global_init();
896 if (!(init_flags & WIMLIB_INIT_FLAG_ASSUME_UTF8)) {
897 wimlib_mbs_is_utf8 = test_locale_ctype_utf8();
899 if (!wimlib_mbs_is_utf8)
900 libntfs3g_global_init();
906 already_inited = true;
910 /* Free global memory allocations. Not strictly necessary if the process using
911 * wimlib is just about to exit (as is the case for 'imagex'). */
913 wimlib_global_cleanup(void)
915 libxml_global_cleanup();
916 iconv_global_cleanup();
918 win32_global_cleanup();