#include <stdlib.h>
#include <unistd.h>
-#ifdef WITH_NTFS_3G
-# include <time.h>
-# include <ntfs-3g/volume.h>
-#endif
-
#ifdef __WIN32__
# include "win32.h"
#else
new_wim_struct()
{
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;
+ if (w) {
+ w->in_fd = -1;
+ w->out_fd = -1;
}
-#endif
return w;
-
}
/*
return 0;
}
-static int
-sort_image_metadata_by_position(const void *p1, const void *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)
- return -1;
- else if (offset1 > offset2)
- return 1;
- else
- return 0;
-}
-
-/*
- * 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 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("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".",
- w->current_image + 1,
- lte->resource_entry.offset);
- w->image_metadata[
- w->current_image++].metadata_lte = lte;
- }
- }
- return ret;
-}
-
/* Returns the compression type given in the flags of a WIM header. */
static int
wim_hdr_flags_compression_type(int wim_hdr_flags)
if (w->current_image != WIMLIB_NO_IMAGE) {
imd = wim_get_current_image_metadata(w);
if (!imd->modified) {
+ wimlib_assert(list_empty(&imd->unhashed_streams));
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);
+ destroy_image_metadata(imd, NULL, false);
}
}
w->current_image = image;
- imd = &w->image_metadata[image - 1];
+ imd = wim_get_current_image_metadata(w);
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);
+ print_lookup_table_entry(imd->metadata_lte, stderr);
#endif
ret = read_metadata_resource(w, imd);
if (ret)
wimlib_resolve_image(WIMStruct *w, const tchar *image_name_or_num)
{
tchar *p;
- int image;
+ long image;
int i;
if (!image_name_or_num || !*image_name_or_num)
return image;
} else {
for (i = 1; i <= w->hdr.image_count; i++) {
- if (tstrcmp(image_name_or_num,
- wimlib_get_image_name(w, i)) == 0)
+ if (!tstrcmp(image_name_or_num,
+ wimlib_get_image_name(w, i)))
return i;
}
return WIMLIB_NO_IMAGE;
tputs(T("----------------"));
tprintf(T("Path: %"TS"\n"), w->filename);
tfputs(T("GUID: 0x"), stdout);
- print_byte_field(hdr->guid, WIM_GID_LEN);
+ print_byte_field(hdr->guid, WIM_GID_LEN, stdout);
tputchar(T('\n'));
tprintf(T("Image Count: %d\n"), hdr->image_count);
tprintf(T("Compression: %"TS"\n"),
wim_info_get_total_bytes(w->wim_info));
tprintf(T("Integrity Info: %"TS"\n"),
(w->hdr.integrity.offset != 0) ? T("yes") : T("no"));
+ tprintf(T("Relative path junction: %"TS"\n"),
+ (hdr->flags & WIM_HDR_FLAG_RP_FIX) ? T("yes") : T("no"));
tputchar(T('\n'));
}
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,
- sizeof(struct resource_entry));
- } else {
- memcpy(&w->hdr.boot_metadata_res_entry,
- &w->image_metadata[
- boot_idx - 1].metadata_lte->resource_entry,
- sizeof(struct resource_entry));
- }
-
return 0;
}
return w->hdr.boot_idx;
}
+static int
+do_open_wim(const tchar *filename, int *fd_ret)
+{
+ int fd;
+
+ fd = topen(filename, O_RDONLY | O_BINARY);
+ if (fd == -1) {
+ ERROR_WITH_ERRNO("Can't open \"%"TS"\" read-only", filename);
+ return WIMLIB_ERR_OPEN;
+ }
+ *fd_ret = fd;
+ return 0;
+}
+
+int
+reopen_wim(WIMStruct *w)
+{
+ wimlib_assert(w->in_fd == -1);
+ return do_open_wim(w->filename, &w->in_fd);
+}
+
+int
+close_wim(WIMStruct *w)
+{
+ if (w->in_fd != -1) {
+ close(w->in_fd);
+ w->in_fd = -1;
+ }
+ return 0;
+}
+
/*
* Begins the reading of a WIM file; opens the file and reads its header and
* lookup table, and optionally checks the integrity.
DEBUG("Reading the WIM file `%"TS"'", in_wim_path);
- w->fp = tfopen(in_wim_path, T("rb"));
- if (!w->fp) {
- ERROR_WITH_ERRNO("Failed to open `%"TS"' for reading",
- in_wim_path);
- return WIMLIB_ERR_OPEN;
- }
+ ret = do_open_wim(in_wim_path, &w->in_fd);
+ if (ret)
+ return ret;
/* The absolute path to the WIM is requested so that wimlib_overwrite()
* still works even if the process changes its working directory. This
return WIMLIB_ERR_OPEN;
}
- ret = read_header(w->fp, &w->hdr, open_flags);
- if (ret != 0)
+ ret = read_header(w->in_fd, &w->hdr, open_flags);
+ if (ret)
return ret;
DEBUG("According to header, WIM contains %u images", w->hdr.image_count);
}
}
- ret = read_lookup_table(w);
- if (ret != 0)
- return ret;
-
- 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 image metadata structures",
- w->hdr.image_count);
+ if (w->hdr.image_count != 0 && w->hdr.part_number == 1) {
+ w->image_metadata = new_image_metadata_array(w->hdr.image_count);
+ if (!w->image_metadata)
return WIMLIB_ERR_NOMEM;
- }
}
- w->current_image = 0;
- 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,
- append_metadata_resource_entry, w);
-
- if (ret != 0)
+ ret = read_lookup_table(w);
+ if (ret)
return ret;
- /* Make sure all the expected images were found. (We already have
- * 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;
- }
-
- /* 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 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,
- &w->xml_data, &w->wim_info);
-
- if (ret != 0)
+ ret = read_xml_data(w->in_fd, &w->hdr.xml_res_entry, &w->wim_info);
+ if (ret)
return ret;
xml_num_images = wim_info_get_num_images(w->wim_info);
void
destroy_image_metadata(struct wim_image_metadata *imd,
- struct wim_lookup_table *table)
+ struct wim_lookup_table *table,
+ bool free_metadata_lte)
{
free_dentry_tree(imd->root_dentry, table);
+ imd->root_dentry = NULL;
free_security_data(imd->security_data);
+ imd->security_data = NULL;
- /* Get rid of the lookup table entry for this image's metadata resource
- * */
- if (table) {
- lookup_table_unlink(table, imd->metadata_lte);
+ if (free_metadata_lte) {
free_lookup_table_entry(imd->metadata_lte);
+ imd->metadata_lte = NULL;
+ }
+ if (!table) {
+ struct wim_lookup_table_entry *lte, *tmp;
+ list_for_each_entry_safe(lte, tmp, &imd->unhashed_streams, unhashed_list)
+ free_lookup_table_entry(lte);
+ }
+ INIT_LIST_HEAD(&imd->unhashed_streams);
+ INIT_LIST_HEAD(&imd->inode_list);
+#ifdef WITH_NTFS_3G
+ if (imd->ntfs_vol) {
+ do_ntfs_umount(imd->ntfs_vol);
+ imd->ntfs_vol = NULL;
}
+#endif
+}
+
+void
+put_image_metadata(struct wim_image_metadata *imd,
+ struct wim_lookup_table *table)
+{
+ if (imd && --imd->refcnt == 0) {
+ destroy_image_metadata(imd, table, true);
+ FREE(imd);
+ }
+}
+
+/* Appends the specified image metadata structure to the array of image metadata
+ * for a WIM, and increments the image count. */
+int
+append_image_metadata(WIMStruct *w, struct wim_image_metadata *imd)
+{
+ struct wim_image_metadata **imd_array;
+
+ DEBUG("Reallocating image metadata array for image_count = %u",
+ w->hdr.image_count + 1);
+ imd_array = REALLOC(w->image_metadata,
+ sizeof(w->image_metadata[0]) * (w->hdr.image_count + 1));
+
+ if (!imd_array)
+ return WIMLIB_ERR_NOMEM;
+ w->image_metadata = imd_array;
+ imd_array[w->hdr.image_count++] = imd;
+ return 0;
+}
+
+
+struct wim_image_metadata *
+new_image_metadata()
+{
+ struct wim_image_metadata *imd;
+
+ imd = CALLOC(1, sizeof(*imd));
+ if (imd) {
+ imd->refcnt = 1;
+ INIT_LIST_HEAD(&imd->inode_list);
+ INIT_LIST_HEAD(&imd->unhashed_streams);
+ DEBUG("Created new image metadata (refcnt=1)");
+ } else {
+ ERROR_WITH_ERRNO("Failed to allocate new image metadata structure");
+ }
+ return imd;
+}
+
+struct wim_image_metadata **
+new_image_metadata_array(unsigned num_images)
+{
+ struct wim_image_metadata **imd_array;
+
+ DEBUG("Creating new image metadata array for %u images",
+ num_images);
+
+ imd_array = CALLOC(num_images, sizeof(imd_array[0]));
+
+ if (!imd_array) {
+ ERROR("Failed to allocate memory for %u image metadata structures",
+ num_images);
+ return NULL;
+ }
+ for (unsigned i = 0; i < num_images; i++) {
+ imd_array[i] = new_image_metadata();
+ if (!imd_array[i]) {
+ for (unsigned j = 0; j < i; j++)
+ put_image_metadata(imd_array[j], NULL);
+ FREE(imd_array);
+ return NULL;
+ }
+ }
+ return imd_array;
+}
+
+/* Checksum all streams that are unhashed (other than the metadata streams),
+ * merging them into the lookup table as needed. This is a no-op unless the
+ * library has previously used to add or mount an image using the same
+ * WIMStruct. */
+int
+wim_checksum_unhashed_streams(WIMStruct *w)
+{
+ int ret;
+ for (int i = 0; i < w->hdr.image_count; i++) {
+ struct wim_lookup_table_entry *lte, *tmp;
+ struct wim_image_metadata *imd = w->image_metadata[i];
+ image_for_each_unhashed_stream_safe(lte, tmp, imd) {
+ ret = hash_unhashed_stream(lte, w->lookup_table, NULL);
+ if (ret)
+ return ret;
+ }
+ }
+ return 0;
}
/* Frees the memory for the WIMStruct, including all internal memory; also
if (!w)
return;
- if (w->fp)
- fclose(w->fp);
- 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
+ if (w->in_fd != -1)
+ close(w->in_fd);
+ if (w->out_fd != -1)
+ close(w->out_fd);
free_lookup_table(w->lookup_table);
FREE(w->filename);
- FREE(w->xml_data);
free_wim_info(w->wim_info);
if (w->image_metadata) {
for (unsigned i = 0; i < w->hdr.image_count; i++)
- destroy_image_metadata(&w->image_metadata[i], NULL);
+ put_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);
DEBUG("Freed WIMStruct");
}
static bool
test_locale_ctype_utf8()
{
+#ifdef __WIN32__
+ return false;
+#else
char *ctype = nl_langinfo(CODESET);
return (!strstr(ctype, "UTF-8") ||
!strstr(ctype, "UTF8") ||
!strstr(ctype, "utf8") ||
!strstr(ctype, "utf-8"));
+#endif
}
-/* Get global memory allocations out of the way,
- * single-threaded programs like 'imagex'. */
WIMLIBAPI int
-wimlib_global_init()
+wimlib_global_init(int init_flags)
{
libxml_global_init();
-#ifdef WITH_NTFS_3G
- libntfs3g_global_init();
-#endif
- wimlib_mbs_is_utf8 = test_locale_ctype_utf8();
+ if (!(init_flags & WIMLIB_INIT_FLAG_ASSUME_UTF8)) {
+ wimlib_mbs_is_utf8 = test_locale_ctype_utf8();
+ #ifdef WITH_NTFS_3G
+ if (!wimlib_mbs_is_utf8)
+ libntfs3g_global_init();
+ #endif
+ }
#ifdef __WIN32__
win32_global_init();
#endif
git://wimlib.net / wimlib / blobdiff