/*
- * wim.c
+ * wim.c - Stuff that doesn't fit into any other file
*/
/*
- * Copyright (C) 2010 Carl Thijssen
- * Copyright (C) 2012 Eric Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
*
* wimlib - Library for working with WIM files
*
*/
#include "config.h"
+
+#ifdef __WIN32__
+# include <windows.h>
+# ifdef ERROR
+# undef ERROR
+# endif
+#endif
+
#include <limits.h>
#include <stdlib.h>
#include <stdarg.h>
+#include <errno.h>
#include "dentry.h"
#include <unistd.h>
#endif
#include "wimlib_internal.h"
-#include "io.h"
+#include "buffer_io.h"
#include "lookup_table.h"
#include "xml.h"
-static int print_metadata(WIMStruct *w)
+#ifdef __WIN32__
+static char *realpath(const char *path, char *resolved_path)
+{
+ DWORD ret;
+ wimlib_assert(resolved_path == NULL);
+
+ ret = GetFullPathNameA(path, 0, NULL, NULL);
+ if (!ret)
+ goto fail_win32;
+
+ resolved_path = MALLOC(ret + 1);
+ if (!resolved_path)
+ goto fail;
+ ret = GetFullPathNameA(path, ret, resolved_path, NULL);
+ if (!ret) {
+ free(resolved_path);
+ goto fail_win32;
+ }
+ return resolved_path;
+fail_win32:
+ win32_error(GetLastError());
+fail:
+ return NULL;
+}
+#endif
+
+static int image_print_metadata(WIMStruct *w)
{
DEBUG("Printing metadata for image %d", w->current_image);
print_security_data(wim_security_data(w));
}
-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,
NULL);
}
-WIMStruct *new_wim_struct()
+static WIMStruct *new_wim_struct()
{
WIMStruct *w = CALLOC(1, sizeof(WIMStruct));
#ifdef WITH_FUSE
static int sort_image_metadata_by_position(const void *p1, const void *p2)
{
- const struct image_metadata *imd1 = p1;
- const struct image_metadata *imd2 = p2;
+ 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)
* If @lte points to a metadata resource, append it to the list of metadata
* 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;
}
/* 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)
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.",
int select_wim_image(WIMStruct *w, int image)
{
- struct image_metadata *imd;
+ struct wim_image_metadata *imd;
+ int ret;
DEBUG("Selecting image %d", image);
INIT_HLIST_HEAD(&imd->inode_list);
}
}
-
w->current_image = image;
- imd = wim_get_current_image_metadata(w);
-
+ imd = &w->image_metadata[image - 1];
if (imd->root_dentry) {
- return 0;
+ ret = 0;
} else {
#ifdef ENABLE_DEBUG
DEBUG("Reading metadata resource specified by the following "
"lookup table entry:");
- print_lookup_table_entry(imd->metadata_lte);
+ print_lookup_table_entry(imd->metadata_lte, stdout);
#endif
- return read_metadata_resource(w, imd);
+ ret = read_metadata_resource(w, imd);
+ if (ret)
+ w->current_image = WIMLIB_NO_IMAGE;
}
+ return ret;
}
printf("Boot Index: %d\n", hdr->boot_idx);
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');
}
* not WIMLIB_NO_IMAGE. */
WIMLIBAPI int wimlib_print_metadata(WIMStruct *w, int image)
{
- if (!w)
- return WIMLIB_ERR_INVALID_PARAM;
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, print_metadata);
+ return for_image(w, image, image_print_metadata);
}
WIMLIBAPI int wimlib_print_files(WIMStruct *w, int image)
{
- if (!w)
- return WIMLIB_ERR_INVALID_PARAM;
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, print_files);
+ 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)
- return WIMLIB_ERR_INVALID_PARAM;
if (w->hdr.total_parts != 1) {
ERROR("Cannot modify the boot index of a split WIM!");
return WIMLIB_ERR_SPLIT_UNSUPPORTED;
wimlib_progress_func_t progress_func)
{
int ret;
- uint xml_num_images;
+ int xml_num_images;
DEBUG("Reading the WIM file `%s'", in_wim_path);
w->filename = realpath(in_wim_path, NULL);
if (!w->filename) {
ERROR_WITH_ERRNO("Failed to resolve WIM filename");
- ret = WIMLIB_ERR_NOMEM;
- goto out_close;
+ if (errno == ENOMEM)
+ return WIMLIB_ERR_NOMEM;
+ else
+ return WIMLIB_ERR_OPEN;
}
ret = read_header(w->fp, &w->hdr, open_flags);
if (ret != 0)
- goto out_close;
+ return ret;
- DEBUG("Wim file contains %u images", 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) {
}
if (wimlib_get_compression_type(w) == WIMLIB_COMPRESSION_TYPE_INVALID) {
- ERROR("Invalid compression type (WIM header flags = %x)",
+ ERROR("Invalid compression type (WIM header flags = 0x%x)",
w->hdr.flags);
- ret = WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
- goto out_close;
+ return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
}
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.", w->filename);
+ "integrity check.", in_wim_path);
} else if (ret == WIM_INTEGRITY_NOT_OK) {
ERROR("WIM is not intact! (Failed integrity check)");
- ret = WIMLIB_ERR_INTEGRITY;
- goto out_close;
- } else if (ret != 0) {
- goto out_close;
+ 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!");
- ERROR("Ask the author to implement support for this.");
- ret = WIMLIB_ERR_COMPRESSED_LOOKUP_TABLE;
- goto out_close;
- }
-
ret = read_lookup_table(w);
if (ret != 0)
- goto out_close;
+ 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",
- w->hdr.image_count);
- ret = WIMLIB_ERR_NOMEM;
- goto out_free_lookup_table;
+ 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;
append_metadata_resource_entry, w);
if (ret != 0)
- goto out_free_image_metadata;
+ return ret;
/* Make sure all the expected images were found. (We already have
- * returned false if *extra* images were found) */
+ * 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 %u images in WIM, but expected %u",
+ ERROR("Only found %d images in WIM, but expected %u",
w->current_image, w->hdr.image_count);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto out_free_image_metadata;
+ return WIMLIB_ERR_IMAGE_COUNT;
}
/* Sort images by the position of their metadata resources. I'm
* file, rather than their order in the lookup table, which is random
* because of hashing. */
qsort(w->image_metadata, w->current_image,
- sizeof(struct image_metadata), sort_image_metadata_by_position);
+ sizeof(struct wim_image_metadata), sort_image_metadata_by_position);
w->current_image = WIMLIB_NO_IMAGE;
&w->xml_data, &w->wim_info);
if (ret != 0)
- goto out_free_image_metadata;
+ return ret;
xml_num_images = wim_info_get_num_images(w->wim_info);
if (xml_num_images != w->hdr.image_count) {
"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);
- ret = WIMLIB_ERR_IMAGE_COUNT;
- goto out_free_xml_data;
+ return WIMLIB_ERR_IMAGE_COUNT;
}
DEBUG("Done beginning read of WIM file `%s'.", in_wim_path);
return 0;
-
- //
- // Everything is freed in wimlib_free() anyway, so no need to roll back
- // changes here.
- //
-out_free_xml_data:
- /*FREE(w->xml_data);*/
- /*w->xml_data = NULL;*/
- /*free_wim_info(w->wim_info);*/
- /*w->wim_info = NULL;*/
-out_free_image_metadata:
- /*FREE(w->image_metadata);*/
- /*w->image_metadata = NULL;*/
- /*w->current_image = WIMLIB_NO_IMAGE;*/
-out_free_lookup_table:
- /*free_lookup_table(w->lookup_table);*/
- /*w->lookup_table = NULL;*/
-out_close:
- /*fclose(w->fp);*/
- /*w->fp = NULL;*/
-out:
- return ret;
}
if (!wim_file || !w_ret)
return WIMLIB_ERR_INVALID_PARAM;
+
w = new_wim_struct();
- if (!w) {
- ERROR("Failed to allocate memory for WIMStruct");
+ if (!w)
return WIMLIB_ERR_NOMEM;
- }
ret = begin_read(w, wim_file, open_flags, progress_func);
- if (ret == 0) {
+ if (ret == 0)
*w_ret = w;
- } else {
- DEBUG("Could not begin reading the WIM file `%s'", wim_file);
+ else
wimlib_free(w);
- }
return ret;
}
+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)
{
- DEBUG2("Freeing WIMStruct");
+ DEBUG("Freeing WIMStruct");
if (!w)
return;
FREE(w->xml_data);
free_wim_info(w->wim_info);
if (w->image_metadata) {
- for (uint i = 0; i < w->hdr.image_count; i++)
+ for (unsigned i = 0; i < w->hdr.image_count; i++)
destroy_image_metadata(&w->image_metadata[i], NULL);
FREE(w->image_metadata);
}
}
#endif
FREE(w);
+ DEBUG("Freed WIMStruct");
+}
+
+/* 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();
}
git://wimlib.net / wimlib / blobdiff