* This file is part of wimlib, a library for working with WIM files.
*
* wimlib 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)
+ * 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.
*
* 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 Lesser General Public License for more
+ * 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
+ * You should have received a copy of the GNU General Public License
* along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
#include "dentry.h"
#include "xml.h"
#include "timestamp.h"
+#include "lookup_table.h"
#include <string.h>
#include <time.h>
#include <libxml/parser.h>
char *description;
char *display_name;
char *display_description;
- char *flags;
+ union {
+ char *flags;
+ struct lookup_table *lookup_table;
+ };
};
static int clone_image_info(const struct image_info *old, struct image_info *new)
{
- int ret;
-
new->dir_count = old->dir_count;
new->file_count = old->file_count;
new->total_bytes = old->total_bytes;
struct wim_info *new_wim_info;
struct image_info *image_info;
int ret;
- char *name;
- char *desc;
DEBUG("Copying XML data between WIM files for source image %d.", image);
}
#endif
+/* Parameters for calculate_dentry_statistics(). */
+struct image_statistics {
+ struct lookup_table *lookup_table;
+ u64 *dir_count;
+ u64 *file_count;
+ u64 *total_bytes;
+ u64 *hard_link_bytes;
+};
+
+static int calculate_dentry_statistics(struct dentry *dentry, void *arg)
+{
+ struct image_info *info = arg;
+ struct lookup_table *lookup_table = info->lookup_table;
+ const struct inode *inode = dentry->d_inode;
+ struct lookup_table_entry *lte;
+
+ /* Update directory count and file count.
+ *
+ * Each dentry counts as either a file or a directory, but not both.
+ * The root directory is an exception: it is not counted.
+ *
+ * Symbolic links and junction points (and presumably other reparse
+ * points) count as regular files. This is despite the fact that
+ * junction points have FILE_ATTRIBUTE_DIRECTORY set.
+ */
+ if (dentry_is_root(dentry))
+ return 0;
+
+ if (inode_is_directory(inode))
+ info->dir_count++;
+ else
+ info->file_count++;
+
+ /*
+ * Update total bytes and hard link bytes.
+ *
+ * Unfortunately there are some inconsistencies/bugs in the way this is
+ * done.
+ *
+ * If there are no alternate data streams in the image, the "total
+ * bytes" is the sum of the size of the un-named data stream of each
+ * inode times the link count of that inode. In other words, it would
+ * be the total number of bytes of regular files you would have if you
+ * extracted the full image without any hard-links. The "hard link
+ * bytes" is equal to the "total bytes" minus the size of the un-named
+ * data stream of each inode. In other words, the "hard link bytes"
+ * counts the size of the un-named data stream for all the links to each
+ * inode except the first one.
+ *
+ * Reparse points and directories don't seem to be counted in either the
+ * total bytes or the hard link bytes.
+ *
+ * And now we get to the most confusing part, the alternate data
+ * streams. They are not counted in the "total bytes". However, if the
+ * link count of an inode with alternate data streams is 2 or greater,
+ * the size of all the alternate data streams is included in the "hard
+ * link bytes", and this size is multiplied by the link count (NOT one
+ * less than the link count).
+ */
+ lte = inode_unnamed_lte(inode, info->lookup_table);
+ if (lte) {
+ info->total_bytes += wim_resource_size(lte);
+ if (!dentry_is_first_in_inode(dentry))
+ info->hard_link_bytes += wim_resource_size(lte);
+ }
+
+ if (inode->link_count >= 2 && dentry_is_first_in_inode(dentry)) {
+ for (unsigned i = 0; i < inode->num_ads; i++) {
+ if (inode->ads_entries[i].stream_name_len) {
+ lte = inode_stream_lte(inode, i + 1, lookup_table);
+ if (lte) {
+ info->hard_link_bytes += inode->link_count *
+ wim_resource_size(lte);
+ }
+ }
+ }
+ }
+ return 0;
+}
+
void xml_update_image_info(WIMStruct *w, int image)
{
struct image_info *image_info;
struct dentry *root;
+ char *flags_save;
DEBUG("Updating the image info for image %d", image);
image_info = &w->wim_info->images[image - 1];
- root = w->image_metadata[image - 1].root_dentry;
- calculate_dir_tree_statistics(root, w->lookup_table,
- &image_info->dir_count,
- &image_info->file_count,
- &image_info->total_bytes,
- &image_info->hard_link_bytes);
+ image_info->file_count = 0;
+ image_info->dir_count = 0;
+ image_info->total_bytes = 0;
+ image_info->hard_link_bytes = 0;
+
+ flags_save = image_info->flags;
+ image_info->lookup_table = w->lookup_table;
+ for_dentry_in_tree(w->image_metadata[image - 1].root_dentry,
+ calculate_dentry_statistics,
+ image_info);
+
+ image_info->lookup_table = NULL;
+ image_info->flags = flags_save;
image_info->last_modification_time = get_wim_timestamp();
}
/* Adds an image to the XML information. */
-int xml_add_image(WIMStruct *w, struct dentry *root_dentry, const char *name,
- const char *description, const char *flags_element)
+int xml_add_image(WIMStruct *w, const char *name)
{
struct wim_info *wim_info;
struct image_info *image_info;
wimlib_assert(name);
- DEBUG("Adding image: name = %s, description = %s, flags_element = %s",
- name, description, flags_element);
+ DEBUG("Adding image: name = %s", name);
/* If this is the first image, allocate the struct wim_info. Otherwise
* use the existing struct wim_info. */
if (!(image_info->name = STRDUP(name)))
goto out_destroy_image_info;
- if (description && !(image_info->description = STRDUP(description)))
- goto out_destroy_image_info;
- if (flags_element && !(image_info->flags = STRDUP(flags_element)))
- goto out_destroy_image_info;
-
w->wim_info = wim_info;
image_info->index = wim_info->num_images;
image_info->creation_time = get_wim_timestamp();
uint i;
const struct image_info *image_info;
const char *desc;
- time_t ctime;
- time_t mtime;
if (image == WIM_ALL_IMAGES) {
for (i = 1; i <= wim_info->num_images; i++)
print_image_info(wim_info, i);
} else {
+ time_t time;
+ char *p;
+
image_info = &wim_info->images[image - 1];
printf("Index: %"PRIu64"\n",
printf("Hard Link Bytes: %"PRIu64"\n",
image_info->hard_link_bytes);
- ctime = wim_timestamp_to_unix(image_info->creation_time);
- mtime = wim_timestamp_to_unix(image_info->last_modification_time);
+ time = wim_timestamp_to_unix(image_info->creation_time);
+ p = asctime(gmtime(&time));
+ *(strrchr(p, '\n')) = '\0';
- printf("Creation Time: %s", asctime(localtime(&ctime)));
- printf("Last Modification Time: %s", asctime(localtime(&mtime)));
+ printf("Creation Time: %s UTC\n", p);
+
+ time = wim_timestamp_to_unix(image_info->last_modification_time);
+ p = asctime(gmtime(&time));
+ *(strrchr(p, '\n')) = '\0';
+
+ printf("Last Modification Time: %s UTC\n", p);
if (image_info->windows_info_exists)
print_windows_info(&image_info->windows_info);
if (image_info->flags)
if (resource_is_compressed(res)) {
ERROR("XML data is supposed to be uncompressed");
ret = WIMLIB_ERR_XML;
- goto err0;
+ goto out_cleanup_parser;
}
if (res->size < 2) {
ERROR("XML data must be at least 2 bytes");
ret = WIMLIB_ERR_XML;
- goto err0;
+ goto out_cleanup_parser;
}
xml_data = MALLOC(res->size + 2);
if (!xml_data) {
ret = WIMLIB_ERR_NOMEM;
- goto err0;
+ goto out_cleanup_parser;
}
- ret = read_full_resource(fp, res->size, res->size, res->offset,
- WIM_COMPRESSION_TYPE_NONE, xml_data);
+ ret = read_uncompressed_resource(fp, res->offset, res->size, xml_data);
if (ret != 0)
- goto err1;
+ goto out_free_xml_data;
xml_data[res->size] = 0;
xml_data[res->size + 1] = 0;
if (!doc) {
ERROR("Failed to parse XML data");
ret = WIMLIB_ERR_XML;
- goto err1;
+ goto out_free_xml_data;
}
DEBUG("Constructing WIM information structure from XML tree.");
if (!root) {
ERROR("Empty XML document");
ret = WIMLIB_ERR_XML;
- goto err2;
+ goto out_free_doc;
}
if (!node_is_element(root) || !node_name_is(root, "WIM")) {
ERROR("Expected <WIM> for the root XML element (found <%s>)",
root->name);
ret = WIMLIB_ERR_XML;
- goto err2;
+ goto out_free_doc;
}
ret = xml_read_wim_info(root, info_ret);
if (ret != 0)
- goto err2;
+ goto out_free_doc;
DEBUG("Freeing XML tree.");
xmlCleanupParser();
*xml_data_ret = xml_data;
return 0;
-err2:
+out_free_doc:
xmlFreeDoc(doc);
-err1:
+out_free_xml_data:
FREE(xml_data);
-err0:
+out_cleanup_parser:
xmlCleanupParser();
return ret;
}
DEBUG("Setting the name of image %d to %s", image, name);
+ if (!w)
+ return WIMLIB_ERR_INVALID_PARAM;
+
if (!name || !*name) {
ERROR("Must specify a non-empty string for the image name");
return WIMLIB_ERR_INVALID_PARAM;
DEBUG("Setting the description of image %d to %s", image, description);
+ if (!w)
+ return WIMLIB_ERR_INVALID_PARAM;
+
if (image < 1 || image > w->hdr.image_count) {
ERROR("%d is not a valid image", image);
return WIMLIB_ERR_INVALID_IMAGE;
w->wim_info->images[image - 1].description = p;
return 0;
}
+
+WIMLIBAPI int wimlib_set_image_flags(WIMStruct *w, int image,
+ const char *flags)
+{
+ char *p;
+
+ DEBUG("Setting the flags of image %d to %s", image, flags);
+
+ if (image < 1 || image > w->hdr.image_count) {
+ ERROR("%d is not a valid image", image);
+ return WIMLIB_ERR_INVALID_IMAGE;
+ }
+ if (flags) {
+ p = STRDUP(flags);
+ if (!p) {
+ ERROR("Out of memory");
+ return WIMLIB_ERR_NOMEM;
+ }
+ } else {
+ p = NULL;
+ }
+ FREE(w->wim_info->images[image - 1].flags);
+ w->wim_info->images[image - 1].flags = p;
+ return 0;
+}
git://wimlib.net / wimlib / blobdiff