/*
- * wim.c
- *
+ * wim.c - Stuff that doesn't fit into any other file
+ */
+
+/*
+ * Copyright (C) 2012, 2013 Biggers
*
- * Copyright (C) 2010 Carl Thijssen
- * Copyright (C) 2012 Eric Biggers
+ * wimlib - Library for working with WIM files
*
- * wimlib - Library for working with WIM files
+ * This file is part of wimlib, a library for working with WIM files.
*
- * This library is free software; you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by the Free
- * Software Foundation; either version 2.1 of the License, or (at your option) any
- * later version.
+ * wimlib is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
+ * any later version.
*
- * This library is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
- * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
*
- * You should have received a copy of the GNU Lesser General Public License along
- * with this library; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License
+ * along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
+#include "config.h"
+#include <limits.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <errno.h>
+
+#include "dentry.h"
+#include <unistd.h>
+#include <fcntl.h>
+
+#ifdef WITH_NTFS_3G
+#include <time.h>
+#include <ntfs-3g/volume.h>
+#endif
+
#include "wimlib_internal.h"
-#include "io.h"
+#include "buffer_io.h"
#include "lookup_table.h"
#include "xml.h"
-#include <stdlib.h>
-static int print_metadata(WIMStruct *w)
+static int image_print_metadata(WIMStruct *w)
{
-#if 0
+ DEBUG("Printing metadata for image %d", w->current_image);
print_security_data(wim_security_data(w));
-#endif
- return for_dentry_in_tree(wim_root_dentry(w), print_dentry,
+ return for_dentry_in_tree(wim_root_dentry(w), print_dentry,
w->lookup_table);
}
-static int print_files(WIMStruct *w)
+static int image_print_files(WIMStruct *w)
{
- return for_dentry_in_tree(wim_root_dentry(w), print_dentry_full_path,
+ return for_dentry_in_tree(wim_root_dentry(w), print_dentry_full_path,
NULL);
}
static WIMStruct *new_wim_struct()
{
- WIMStruct *w;
-
- w = CALLOC(1, sizeof(WIMStruct));
- if (!w)
- return NULL;
- w->link_type = WIM_LINK_TYPE_HARD;
- w->current_image = WIM_NO_IMAGE;
+ WIMStruct *w = CALLOC(1, sizeof(WIMStruct));
+#ifdef WITH_FUSE
+ if (pthread_mutex_init(&w->fp_tab_mutex, NULL) != 0) {
+ ERROR_WITH_ERRNO("Failed to initialize mutex");
+ FREE(w);
+ w = NULL;
+ }
+#endif
return w;
+
}
-/*
- * Calls a function on images in the WIM. If @image is WIM_ALL_IMAGES, @visitor
+/*
+ * Calls a function on images in the WIM. If @image is WIMLIB_ALL_IMAGES, @visitor
* is called on the WIM once for each image, with each image selected as the
* current image in turn. If @image is a certain image, @visitor is called on
* the WIM only once, with that image selected.
int for_image(WIMStruct *w, int image, int (*visitor)(WIMStruct *))
{
int ret;
+ int start;
+ int end;
int i;
- int image_count;
-
- DEBUG("for_image(w = %p, image = %d, visitor = %p)\n",
- w, image, visitor);
-
- if (image == WIM_ALL_IMAGES) {
- image_count = w->hdr.image_count;
- for (i = 1; i <= image_count; i++) {
- ret = wimlib_select_image(w, i);
- if (ret != 0)
- return ret;
- ret = visitor(w);
- if (ret != 0)
- return ret;
- }
+
+ if (image == WIMLIB_ALL_IMAGES) {
+ start = 1;
+ end = w->hdr.image_count;
+ } else if (image >= 1 && image <= w->hdr.image_count) {
+ start = image;
+ end = image;
} else {
- ret = wimlib_select_image(w, image);
+ return WIMLIB_ERR_INVALID_IMAGE;
+ }
+ for (i = start; i <= end; i++) {
+ ret = select_wim_image(w, i);
if (ret != 0)
return ret;
ret = visitor(w);
+ if (ret != 0)
+ return ret;
}
- return ret;
+ return 0;
}
static int sort_image_metadata_by_position(const void *p1, const void *p2)
{
- struct image_metadata *bmd1 = (struct image_metadata*)p1;
- struct image_metadata *bmd2 = (struct image_metadata*)p2;
- u64 offset1 = bmd1->lookup_table_entry->resource_entry.offset;
- u64 offset2 = bmd2->lookup_table_entry->resource_entry.offset;
+ const struct wim_image_metadata *imd1 = p1;
+ const struct wim_image_metadata *imd2 = p2;
+ u64 offset1 = imd1->metadata_lte->resource_entry.offset;
+ u64 offset2 = imd2->metadata_lte->resource_entry.offset;
if (offset1 < offset2)
return -1;
else if (offset1 > offset2)
return 0;
}
-/*
+/*
* If @lte points to a metadata resource, append it to the list of metadata
- * resources in the WIMStruct.
+ * resources in the WIMStruct. Otherwise, do nothing.
*/
-static int append_metadata_resource_entry(struct lookup_table_entry *lte,
+static int append_metadata_resource_entry(struct wim_lookup_table_entry *lte,
void *wim_p)
{
WIMStruct *w = wim_p;
+ int ret = 0;
if (lte->resource_entry.flags & WIM_RESHDR_FLAG_METADATA) {
if (w->current_image == w->hdr.image_count) {
- ERROR("Expected only %u images, but found more!\n",
- w->hdr.image_count);
- return WIMLIB_ERR_IMAGE_COUNT;
+ ERROR("The WIM header says there are %u images in the WIM,\n"
+ " but we found more metadata resources than this",
+ w->hdr.image_count);
+ ret = WIMLIB_ERR_IMAGE_COUNT;
} else {
DEBUG("Found metadata resource for image %u at "
- "offset %"PRIu64"\n", w->current_image + 1,
- lte->resource_entry.offset);
+ "offset %"PRIu64".",
+ w->current_image + 1,
+ lte->resource_entry.offset);
w->image_metadata[
- w->current_image++].lookup_table_entry = lte;
+ w->current_image++].metadata_lte = lte;
}
}
-
- /* Do nothing if not a metadata resource. */
- return 0;
+ return ret;
}
/* Returns the compression type given in the flags of a WIM header. */
-int wim_hdr_flags_compression_type(int wim_hdr_flags)
+static int wim_hdr_flags_compression_type(int wim_hdr_flags)
{
if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESSION) {
if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESS_LZX)
- return WIM_COMPRESSION_TYPE_LZX;
+ return WIMLIB_COMPRESSION_TYPE_LZX;
else if (wim_hdr_flags & WIM_HDR_FLAG_COMPRESS_XPRESS)
- return WIM_COMPRESSION_TYPE_XPRESS;
+ return WIMLIB_COMPRESSION_TYPE_XPRESS;
else
- return WIM_COMPRESSION_TYPE_INVALID;
+ return WIMLIB_COMPRESSION_TYPE_INVALID;
} else {
- return WIM_COMPRESSION_TYPE_NONE;
+ return WIMLIB_COMPRESSION_TYPE_NONE;
}
}
-int wim_resource_compression_type(const WIMStruct *w,
- const struct resource_entry *entry)
-{
- int wim_ctype = wimlib_get_compression_type(w);
- return resource_compression_type(wim_ctype, entry->flags);
-}
-
-WIMLIBAPI void wimlib_set_verbose(WIMStruct *w, bool verbose)
-{
- w->verbose = verbose;
-}
-
/*
* Creates a WIMStruct for a new WIM file.
*/
WIMLIBAPI int wimlib_create_new_wim(int ctype, WIMStruct **w_ret)
{
WIMStruct *w;
- struct lookup_table *table;
+ struct wim_lookup_table *table;
int ret;
- DEBUG("Creating new WIM with %s compression\n",
- wimlib_get_compression_type_string(ctype));
+ DEBUG("Creating new WIM with %s compression.",
+ wimlib_get_compression_type_string(ctype));
/* Allocate the WIMStruct. */
w = new_wim_struct();
ret = init_header(&w->hdr, ctype);
if (ret != 0)
- goto err;
+ goto out_free;
table = new_lookup_table(9001);
if (!table) {
ret = WIMLIB_ERR_NOMEM;
- goto err;
+ goto out_free;
}
w->lookup_table = table;
*w_ret = w;
return 0;
-err:
+out_free:
FREE(w);
return ret;
}
return w->hdr.image_count;
}
-int wimlib_select_image(WIMStruct *w, int image)
+int select_wim_image(WIMStruct *w, int image)
{
- DEBUG("Selecting image %u\n", image);
+ struct wim_image_metadata *imd;
+ int ret;
- if (image == w->current_image)
- return 0;
+ DEBUG("Selecting image %d", image);
- if (image > w->hdr.image_count || image < 1) {
- ERROR("Cannot select image %u: There are only %u images!\n",
- image, w->hdr.image_count);
+ if (image == WIMLIB_NO_IMAGE) {
+ ERROR("Invalid image: %d", WIMLIB_NO_IMAGE);
return WIMLIB_ERR_INVALID_IMAGE;
}
+ if (image == w->current_image)
+ return 0;
- /* If a valid image is selected, it can be freed if it is not modified.
- * */
- if (w->current_image != WIM_NO_IMAGE &&
- !wim_current_image_is_modified(w)) {
-
- struct image_metadata *imd;
+ if (image < 1 || image > w->hdr.image_count) {
+ ERROR("Cannot select image %d: There are only %u images",
+ image, w->hdr.image_count);
+ return WIMLIB_ERR_INVALID_IMAGE;
+ }
- DEBUG("Freeing image %u\n", w->current_image);
+ /* If a valid image is currently selected, it can be freed if it is not
+ * modified. */
+ if (w->current_image != WIMLIB_NO_IMAGE) {
imd = wim_get_current_image_metadata(w);
- free_dentry_tree(imd->root_dentry, NULL, false);
-#if 0
- destroy_security_data(&imd->security_data);
-#endif
- imd->root_dentry = NULL;
+ if (!imd->modified) {
+ DEBUG("Freeing image %u", w->current_image);
+ destroy_image_metadata(imd, NULL);
+ imd->root_dentry = NULL;
+ imd->security_data = NULL;
+ INIT_HLIST_HEAD(&imd->inode_list);
+ }
}
-
w->current_image = image;
-
- if (wim_root_dentry(w))
- return 0;
- else
- return read_metadata_resource(w->fp,
- wim_metadata_resource_entry(w),
- wimlib_get_compression_type(w),
- /*wim_security_data(w), */
- wim_root_dentry_p(w));
+ imd = &w->image_metadata[image - 1];
+ if (imd->root_dentry) {
+ ret = 0;
+ } else {
+ #ifdef ENABLE_DEBUG
+ DEBUG("Reading metadata resource specified by the following "
+ "lookup table entry:");
+ print_lookup_table_entry(imd->metadata_lte, stdout);
+ #endif
+ ret = read_metadata_resource(w, imd);
+ if (ret)
+ w->current_image = WIMLIB_NO_IMAGE;
+ }
+ return ret;
}
WIMLIBAPI const char *wimlib_get_compression_type_string(int ctype)
{
switch (ctype) {
- case WIM_COMPRESSION_TYPE_NONE:
+ case WIMLIB_COMPRESSION_TYPE_NONE:
return "None";
- case WIM_COMPRESSION_TYPE_LZX:
+ case WIMLIB_COMPRESSION_TYPE_LZX:
return "LZX";
- case WIM_COMPRESSION_TYPE_XPRESS:
+ case WIMLIB_COMPRESSION_TYPE_XPRESS:
return "XPRESS";
default:
return "Invalid";
int image;
int i;
- if (!image_name_or_num)
- return WIM_NO_IMAGE;
+ if (!image_name_or_num || !*image_name_or_num)
+ return WIMLIB_NO_IMAGE;
- if (strcmp(image_name_or_num, "all") == 0)
- return WIM_ALL_IMAGES;
- image = strtoul(image_name_or_num, &p, 10);
- if (*p == '\0') {
- if (image < 1 || image > w->hdr.image_count)
- return WIM_NO_IMAGE;
+ if (strcmp(image_name_or_num, "all") == 0
+ || strcmp(image_name_or_num, "*") == 0)
+ return WIMLIB_ALL_IMAGES;
+ image = strtol(image_name_or_num, &p, 10);
+ if (p != image_name_or_num && *p == '\0' && image > 0) {
+ if (image > w->hdr.image_count)
+ return WIMLIB_NO_IMAGE;
return image;
} else {
for (i = 1; i <= w->hdr.image_count; i++) {
- if (strcmp(image_name_or_num,
- wimlib_get_image_name(w, i)) == 0)
+ if (strcmp(image_name_or_num,
+ wimlib_get_image_name(w, i)) == 0)
return i;
}
- return WIM_NO_IMAGE;
+ return WIMLIB_NO_IMAGE;
}
}
WIMLIBAPI void wimlib_print_wim_information(const WIMStruct *w)
{
const struct wim_header *hdr;
-
+
hdr = &w->hdr;
puts("WIM Information:");
puts("----------------");
printf("Image Count: %d\n", hdr->image_count);
printf("Compression: %s\n", wimlib_get_compression_type_string(
wimlib_get_compression_type(w)));
- printf("Part Number: %d/%d\n", 1, 1);
+ printf("Part Number: %d/%d\n", hdr->part_number, hdr->total_parts);
printf("Boot Index: %d\n", hdr->boot_idx);
- printf("Size: %"PRIu64" bytes\n",
+ printf("Size: %"PRIu64" bytes\n",
wim_info_get_total_bytes(w->wim_info));
- printf("Integrity Info: %s\n", (w->hdr.integrity.size != 0) ? "yes" : "no");
+ printf("Integrity Info: %s\n", (w->hdr.integrity.offset != 0) ? "yes" : "no");
putchar('\n');
}
return w->hdr.integrity.size != 0;
}
-
WIMLIBAPI void wimlib_print_available_images(const WIMStruct *w, int image)
{
- if (image == WIM_ALL_IMAGES) {
- puts("Available Images:");
- puts("-----------------");
- } else {
- int n;
- int i;
-
+ int first;
+ int last;
+ int i;
+ int n;
+ if (image == WIMLIB_ALL_IMAGES) {
+ n = printf("Available Images:\n");
+ first = 1;
+ last = w->hdr.image_count;
+ } else if (image >= 1 && image <= w->hdr.image_count) {
n = printf("Information for Image %d\n", image);
- for (i = 0; i < n - 1; i++)
- putchar('-');
- putchar('\n');
-
+ first = image;
+ last = image;
+ } else {
+ printf("wimlib_print_available_images(): Invalid image %d",
+ image);
+ return;
}
- print_image_info(w->wim_info, image);
+ for (i = 0; i < n - 1; i++)
+ putchar('-');
+ putchar('\n');
+ for (i = first; i <= last; i++)
+ print_image_info(w->wim_info, i);
}
-/* Prints the metadata for the specified image, which may be WIM_ALL_IMAGES, but
- * not WIM_NO_IMAGE. */
+/* Prints the metadata for the specified image, which may be WIMLIB_ALL_IMAGES, but
+ * not WIMLIB_NO_IMAGE. */
WIMLIBAPI int wimlib_print_metadata(WIMStruct *w, int image)
{
- return for_image(w, image, print_metadata);
+ if (w->hdr.part_number != 1) {
+ ERROR("Cannot show the metadata from part %hu of a %hu-part split WIM!",
+ w->hdr.part_number, w->hdr.total_parts);
+ ERROR("Select the first part of the split WIM to see the metadata.");
+ return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+ }
+ return for_image(w, image, image_print_metadata);
}
WIMLIBAPI int wimlib_print_files(WIMStruct *w, int image)
{
- return for_image(w, image, print_files);
+ if (w->hdr.part_number != 1) {
+ ERROR("Cannot list the files from part %hu of a %hu-part split WIM!",
+ w->hdr.part_number, w->hdr.total_parts);
+ ERROR("Select the first part of the split WIM if you'd like to list the files.");
+ return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+ }
+ return for_image(w, image, image_print_files);
}
/* Sets the index of the bootable image. */
WIMLIBAPI int wimlib_set_boot_idx(WIMStruct *w, int boot_idx)
{
+ if (w->hdr.total_parts != 1) {
+ ERROR("Cannot modify the boot index of a split WIM!");
+ return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+ }
if (boot_idx < 0 || boot_idx > w->hdr.image_count)
return WIMLIB_ERR_INVALID_IMAGE;
w->hdr.boot_idx = boot_idx;
+
if (boot_idx == 0) {
- memset(&w->hdr.boot_metadata_res_entry, 0,
+ memset(&w->hdr.boot_metadata_res_entry, 0,
sizeof(struct resource_entry));
} else {
memcpy(&w->hdr.boot_metadata_res_entry,
- &w->image_metadata[boot_idx - 1].lookup_table_entry->
- resource_entry,
+ &w->image_metadata[
+ boot_idx - 1].metadata_lte->resource_entry,
sizeof(struct resource_entry));
}
+
return 0;
}
+WIMLIBAPI int wimlib_get_part_number(const WIMStruct *w, int *total_parts_ret)
+{
+ if (total_parts_ret)
+ *total_parts_ret = w->hdr.total_parts;
+ return w->hdr.part_number;
+}
+
+
WIMLIBAPI int wimlib_get_boot_idx(const WIMStruct *w)
{
return w->hdr.boot_idx;
}
-/*
+/*
* Begins the reading of a WIM file; opens the file and reads its header and
* lookup table, and optionally checks the integrity.
*/
-static int wim_begin_read(WIMStruct *w, const char *in_wim_path, int flags)
+static int begin_read(WIMStruct *w, const char *in_wim_path, int open_flags,
+ wimlib_progress_func_t progress_func)
{
int ret;
- uint xml_num_images;
- int integrity_status;
-
- DEBUG("Reading the WIM file `%s'\n", in_wim_path);
+ int xml_num_images;
- w->filename = STRDUP(in_wim_path);
- if (!w->filename) {
- ERROR("Failed to allocate memory for WIM filename.\n");
- return WIMLIB_ERR_NOMEM;
- }
+ DEBUG("Reading the WIM file `%s'", in_wim_path);
w->fp = fopen(in_wim_path, "rb");
-
if (!w->fp) {
- ERROR("Failed to open the file \"%s\" for reading: %m\n",
- in_wim_path);
- ret = WIMLIB_ERR_OPEN;
- goto done;
+ ERROR_WITH_ERRNO("Failed to open `%s' for reading",
+ in_wim_path);
+ return WIMLIB_ERR_OPEN;
+ }
+
+ /* The absolute path to the WIM is requested so that wimlib_overwrite()
+ * still works even if the process changes its working directory. This
+ * actually happens if a WIM is mounted read-write, since the FUSE
+ * thread changes directory to "/", and it needs to be able to find the
+ * WIM file again.
+ *
+ * This will break if the full path to the WIM changes in the
+ * intervening time...
+ */
+ w->filename = realpath(in_wim_path, NULL);
+ if (!w->filename) {
+ ERROR_WITH_ERRNO("Failed to resolve WIM filename");
+ if (errno == ENOMEM)
+ return WIMLIB_ERR_NOMEM;
+ else
+ return WIMLIB_ERR_OPEN;
}
- ret = read_header(w->fp, &w->hdr);
+ ret = read_header(w->fp, &w->hdr, open_flags);
if (ret != 0)
- goto done;
+ return ret;
- DEBUG("Wim file contains %u images\n", w->hdr.image_count);
+ DEBUG("According to header, WIM contains %u images", w->hdr.image_count);
/* If the boot index is invalid, print a warning and set it to 0 */
if (w->hdr.boot_idx > w->hdr.image_count) {
- ERROR("WARNING: In `%s', image %u is marked as bootable,\n",
- in_wim_path, w->hdr.boot_idx);
- ERROR(" but there are only %u images!\n",
- w->hdr.image_count);
+ WARNING("In `%s', image %u is marked as bootable, "
+ "but there are only %u images in the WIM",
+ in_wim_path, w->hdr.boot_idx, w->hdr.image_count);
w->hdr.boot_idx = 0;
}
- if (wimlib_get_compression_type(w) == WIM_COMPRESSION_TYPE_INVALID) {
- ERROR("Invalid compression type (WIM header flags "
- "= %x)\n", w->hdr.flags);
- ret = WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
- goto done;
+ if (wimlib_get_compression_type(w) == WIMLIB_COMPRESSION_TYPE_INVALID) {
+ ERROR("Invalid compression type (WIM header flags = 0x%x)",
+ w->hdr.flags);
+ return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
}
-
- if (flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY) {
- ret = check_wim_integrity(w,
- flags & WIMLIB_OPEN_FLAG_SHOW_PROGRESS,
- &integrity_status);
- if (ret != 0) {
- ERROR("Error in check_wim_integrity()\n");
- goto done;
- }
- if (integrity_status == WIM_INTEGRITY_NONEXISTENT) {
- DEBUG("WARNING: No integrity information; skipping "
- "integrity check.\n");
- } else if (integrity_status == WIM_INTEGRITY_NOT_OK) {
- ERROR("WIM is not intact! (Failed integrity check)\n");
- ret = WIMLIB_ERR_INTEGRITY;
- goto done;
+ if (open_flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY) {
+ ret = check_wim_integrity(w, progress_func);
+ if (ret == WIM_INTEGRITY_NONEXISTENT) {
+ WARNING("No integrity information for `%s'; skipping "
+ "integrity check.", in_wim_path);
+ } else if (ret == WIM_INTEGRITY_NOT_OK) {
+ ERROR("WIM is not intact! (Failed integrity check)");
+ return WIMLIB_ERR_INTEGRITY;
+ } else if (ret != WIM_INTEGRITY_OK) {
+ return ret;
}
}
- if (resource_is_compressed(&w->hdr.lookup_table_res_entry)) {
- ERROR("Didn't expect a compressed lookup table!\n");
- ERROR("Ask the author to implement support for this.\n");
- ret = WIMLIB_ERR_COMPRESSED_LOOKUP_TABLE;
- goto done;
- }
-
- ret = read_lookup_table(w->fp, w->hdr.lookup_table_res_entry.offset,
- w->hdr.lookup_table_res_entry.size,
- &w->lookup_table);
-
+ ret = read_lookup_table(w);
if (ret != 0)
- goto done;
+ return ret;
- w->image_metadata = CALLOC(w->hdr.image_count,
- sizeof(struct image_metadata));
+ if (w->hdr.image_count != 0) {
+ w->image_metadata = CALLOC(w->hdr.image_count,
+ sizeof(struct wim_image_metadata));
- if (!w->image_metadata) {
- ERROR("Failed to allocate memory for %u metadata structures\n",
- w->hdr.image_count);
- goto done;
+ if (!w->image_metadata) {
+ ERROR("Failed to allocate memory for %u image metadata structures",
+ w->hdr.image_count);
+ return WIMLIB_ERR_NOMEM;
+ }
}
w->current_image = 0;
- DEBUG("Looking for metadata resources in the lookup table.\n");
+ DEBUG("Looking for metadata resources in the lookup table.");
/* Find the images in the WIM by searching the lookup table. */
- ret = for_lookup_table_entry(w->lookup_table,
+ ret = for_lookup_table_entry(w->lookup_table,
append_metadata_resource_entry, w);
if (ret != 0)
- goto done;
+ return ret;
/* Make sure all the expected images were found. (We already have
- * returned false if *extra* images were found) */
- if (w->current_image != w->hdr.image_count) {
- ERROR("Only found %u images in WIM, but expected %u!\n",
- w->current_image, w->hdr.image_count);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto done;
+ * returned WIMLIB_ERR_IMAGE_COUNT if *extra* images were found) */
+ if (w->current_image != w->hdr.image_count &&
+ w->hdr.part_number == 1)
+ {
+ ERROR("Only found %d images in WIM, but expected %u",
+ w->current_image, w->hdr.image_count);
+ return WIMLIB_ERR_IMAGE_COUNT;
}
- w->current_image = WIM_NO_IMAGE;
-
/* Sort images by the position of their metadata resources. I'm
* assuming that is what determines the other of the images in the WIM
- * file, rather than their order in the lookup table, which may be
- * random because of hashing. */
- qsort(w->image_metadata, w->hdr.image_count,
- sizeof(struct image_metadata), sort_image_metadata_by_position);
+ * file, rather than their order in the lookup table, which is random
+ * because of hashing. */
+ qsort(w->image_metadata, w->current_image,
+ sizeof(struct wim_image_metadata), sort_image_metadata_by_position);
+
+ w->current_image = WIMLIB_NO_IMAGE;
/* Read the XML data. */
- ret = read_xml_data(w->fp, &w->hdr.xml_res_entry,
+ ret = read_xml_data(w->fp, &w->hdr.xml_res_entry,
&w->xml_data, &w->wim_info);
- if (ret != 0) {
- ERROR("Missing or invalid XML data\n");
- goto done;
- }
+ if (ret != 0)
+ return ret;
xml_num_images = wim_info_get_num_images(w->wim_info);
if (xml_num_images != w->hdr.image_count) {
ERROR("In the file `%s', there are %u <IMAGE> elements "
- "in the XML data,\n", in_wim_path,
- xml_num_images);
- ERROR("but %u images in the WIM! There must be "
- "exactly one <IMAGE> element per image.\n",
- w->hdr.image_count);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto done;
+ "in the XML data,", in_wim_path, xml_num_images);
+ ERROR("but %u images in the WIM! There must be exactly one "
+ "<IMAGE> element per image.", w->hdr.image_count);
+ return WIMLIB_ERR_IMAGE_COUNT;
}
- DEBUG("Done beginning read of WIM file.\n");
- ret = 0;
-done:
- return ret;
+ DEBUG("Done beginning read of WIM file `%s'.", in_wim_path);
+ return 0;
}
/*
* Opens a WIM file and creates a WIMStruct for it.
*/
-WIMLIBAPI int wimlib_open_wim(const char *wim_file, int flags,
- WIMStruct **w_ret)
+WIMLIBAPI int wimlib_open_wim(const char *wim_file, int open_flags,
+ WIMStruct **w_ret,
+ wimlib_progress_func_t progress_func)
{
WIMStruct *w;
int ret;
- DEBUG("wim_file = `%s', flags = %d\n", wim_file, flags);
+ if (!wim_file || !w_ret)
+ return WIMLIB_ERR_INVALID_PARAM;
+
w = new_wim_struct();
if (!w)
return WIMLIB_ERR_NOMEM;
- ret = wim_begin_read(w, wim_file, flags);
- if (ret != 0) {
- ERROR("Could not begin reading the WIM file `%s'\n", wim_file);
- FREE(w);
- return ret;
- }
- *w_ret = w;
- return 0;
+ ret = begin_read(w, wim_file, open_flags, progress_func);
+ if (ret == 0)
+ *w_ret = w;
+ else
+ wimlib_free(w);
+ return ret;
}
-/**
- * Frees internal memory allocated by WIMLIB for a WIM file, and closes it if it
- * is still open.
- */
-void wimlib_destroy(WIMStruct *w)
+void destroy_image_metadata(struct wim_image_metadata *imd,
+ struct wim_lookup_table *table)
{
+ free_dentry_tree(imd->root_dentry, table);
+ free_security_data(imd->security_data);
+ /* Get rid of the lookup table entry for this image's metadata resource
+ * */
+ if (table) {
+ lookup_table_unlink(table, imd->metadata_lte);
+ free_lookup_table_entry(imd->metadata_lte);
+ }
}
/* Frees the memory for the WIMStruct, including all internal memory; also
* closes all files associated with the WIMStruct. */
WIMLIBAPI void wimlib_free(WIMStruct *w)
{
- uint i;
+ DEBUG2("Freeing WIMStruct");
if (!w)
return;
if (w->out_fp)
fclose(w->out_fp);
+#ifdef WITH_FUSE
+ if (w->fp_tab) {
+ for (size_t i = 0; i < w->num_allocated_fps; i++)
+ if (w->fp_tab[i])
+ fclose(w->fp_tab[i]);
+ FREE(w->fp_tab);
+ }
+ pthread_mutex_destroy(&w->fp_tab_mutex);
+#endif
+
free_lookup_table(w->lookup_table);
FREE(w->filename);
- FREE(w->output_dir);
FREE(w->xml_data);
free_wim_info(w->wim_info);
if (w->image_metadata) {
- for (i = 0; i < w->hdr.image_count; i++)
- free_dentry_tree(w->image_metadata[i].root_dentry,
- NULL, false);
+ for (unsigned i = 0; i < w->hdr.image_count; i++)
+ destroy_image_metadata(&w->image_metadata[i], NULL);
FREE(w->image_metadata);
}
+#ifdef WITH_NTFS_3G
+ if (w->ntfs_vol) {
+ DEBUG("Unmounting NTFS volume");
+ ntfs_umount(w->ntfs_vol, FALSE);
+ }
+#endif
FREE(w);
}
+/* Get global memory allocations out of the way. Not strictly necessary in
+ * single-threaded programs like 'imagex'. */
+WIMLIBAPI int wimlib_global_init()
+{
+ libxml_global_init();
+ return iconv_global_init();
+}
+
+/* Free global memory allocations. Not strictly necessary if the process using
+ * wimlib is just about to exit (as is the case for 'imagex'). */
+WIMLIBAPI void wimlib_global_cleanup()
+{
+ libxml_global_cleanup();
+ iconv_global_cleanup();
+}