*/
+#include "config.h"
+
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
+
+#ifdef HAVE_UTIME_H
+#include <utime.h>
+#endif
+
#include <unistd.h>
-#include "config.h"
#include "dentry.h"
#include "lookup_table.h"
#include "timestamp.h"
/* Internal */
#define WIMLIB_EXTRACT_FLAG_MULTI_IMAGE 0x80000000
-static int extract_regular_file_linked(const struct dentry *dentry,
+static int extract_regular_file_linked(const struct dentry *dentry,
const char *output_dir,
const char *output_path,
int extract_flags,
wimlib_assert(extract_flags & WIMLIB_EXTRACT_FLAG_SYMLINK);
- num_path_components =
+ num_path_components =
get_num_path_components(dentry->full_path_utf8) - 1;
num_output_dir_path_components =
get_num_path_components(output_dir);
}
static int extract_regular_file_unlinked(WIMStruct *w,
- struct dentry *dentry,
+ struct dentry *dentry,
const char *output_path,
int extract_flags,
struct lookup_table_entry *lte)
int out_fd;
int ret;
- const struct list_head *head = &dentry->link_group_list;
+ struct inode *inode = dentry->d_inode;
- if (head->next != head &&
- !(extract_flags & WIMLIB_EXTRACT_FLAG_MULTI_IMAGE))
+ if (!((extract_flags & WIMLIB_EXTRACT_FLAG_MULTI_IMAGE)
+ && (extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK |
+ WIMLIB_EXTRACT_FLAG_HARDLINK))))
{
- /* This dentry is one of a hard link set of at least 2 dentries.
- * If one of the other dentries has already been extracted, make
- * a hard link to the file corresponding to this
- * already-extracted directory. Otherwise, extract the
- * file, and set the dentry->extracted_file field so that other
+ /* If the dentry is one of a hard link set of at least 2
+ * dentries and one of the other dentries has already been
+ * extracted, make a hard link to the file corresponding to this
+ * already-extracted directory. Otherwise, extract the file,
+ * and set the inode->extracted_file field so that other
* dentries in the hard link group can link to it. */
- struct dentry *other;
- list_for_each_entry(other, head, link_group_list) {
- if (other->extracted_file) {
+ if (inode->link_count > 1) {
+ if (inode->extracted_file) {
DEBUG("Extracting hard link `%s' => `%s'",
- output_path, other->extracted_file);
- if (link(other->extracted_file, output_path) != 0) {
+ output_path, inode->extracted_file);
+ if (link(inode->extracted_file, output_path) != 0) {
ERROR_WITH_ERRNO("Failed to hard link "
"`%s' to `%s'",
output_path,
- other->extracted_file);
+ inode->extracted_file);
return WIMLIB_ERR_LINK;
}
return 0;
}
- }
- FREE(dentry->extracted_file);
- dentry->extracted_file = STRDUP(output_path);
- if (!dentry->extracted_file) {
- ERROR("Failed to allocate memory for filename");
- return WIMLIB_ERR_NOMEM;
+ FREE(inode->extracted_file);
+ inode->extracted_file = STRDUP(output_path);
+ if (!inode->extracted_file) {
+ ERROR("Failed to allocate memory for filename");
+ return WIMLIB_ERR_NOMEM;
+ }
}
}
/* Empty file with no lookup table entry */
DEBUG("Empty file `%s'.", output_path);
ret = 0;
- goto done;
+ goto out;
}
ret = extract_full_wim_resource_to_fd(lte, out_fd);
if (ret != 0) {
ERROR("Failed to extract resource to `%s'", output_path);
- goto done;
+ goto out;
}
-done:
+out:
if (close(out_fd) != 0) {
ERROR_WITH_ERRNO("Failed to close file `%s'", output_path);
ret = WIMLIB_ERR_WRITE;
return ret;
}
-/*
- * Extracts a regular file from the WIM archive.
+/*
+ * Extracts a regular file from the WIM archive.
*/
-static int extract_regular_file(WIMStruct *w,
- struct dentry *dentry,
+static int extract_regular_file(WIMStruct *w,
+ struct dentry *dentry,
const char *output_dir,
const char *output_path,
int extract_flags)
{
struct lookup_table_entry *lte;
+ const struct inode *inode = dentry->d_inode;
- lte = dentry_unnamed_lte(dentry, w->lookup_table);
+ lte = inode_unnamed_lte(inode, w->lookup_table);
if ((extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK |
WIMLIB_EXTRACT_FLAG_HARDLINK)) && lte) {
- if (++lte->out_refcnt != 1)
+ if (lte->extracted_file) {
return extract_regular_file_linked(dentry, output_dir,
output_path,
extract_flags, lte);
- lte->extracted_file = STRDUP(output_path);
- if (!lte->extracted_file)
- return WIMLIB_ERR_NOMEM;
+ } else {
+ lte->extracted_file = STRDUP(output_path);
+ if (!lte->extracted_file)
+ return WIMLIB_ERR_NOMEM;
+ }
}
return extract_regular_file_unlinked(w, dentry, output_path,
const WIMStruct *w)
{
char target[4096];
- ssize_t ret = dentry_readlink(dentry, target, sizeof(target), w);
+ ssize_t ret = inode_readlink(dentry->d_inode, target, sizeof(target), w);
if (ret <= 0) {
ERROR("Could not read the symbolic link from dentry `%s'",
dentry->full_path_utf8);
return 0;
}
-/*
- * Extracts a directory from the WIM archive.
+/*
+ * Extracts a directory from the WIM archive.
*
* @dentry: The directory entry for the directory.
* @output_path: The path to which the directory is to be extracted to.
- * @return: True on success, false on failure.
+ * @return: True on success, false on failure.
*/
static int extract_directory(const char *output_path, bool is_root)
{
WIMStruct *w;
int extract_flags;
const char *output_dir;
+ unsigned num_lutimes_warnings;
};
-/*
+/*
* Extracts a file, directory, or symbolic link from the WIM archive. For use
* in for_dentry_in_tree().
*/
struct extract_args *args = arg;
size_t len = strlen(args->output_dir);
char output_path[len + dentry->full_path_utf8_len + 1];
+ const struct inode *inode = dentry->d_inode;
+ int ret;
memcpy(output_path, args->output_dir, len);
memcpy(output_path + len, dentry->full_path_utf8, dentry->full_path_utf8_len);
output_path[len + dentry->full_path_utf8_len] = '\0';
struct timeval tv[2];
- wim_timestamp_to_timeval(dentry->last_access_time, &tv[0]);
- wim_timestamp_to_timeval(dentry->last_write_time, &tv[1]);
- if (lutimes(output_path, tv) != 0) {
- WARNING("Failed to set timestamp on file `%s': %s",
- output_path, strerror(errno));
+ wim_timestamp_to_timeval(inode->last_access_time, &tv[0]);
+ wim_timestamp_to_timeval(inode->last_write_time, &tv[1]);
+ #ifdef HAVE_LUTIMES
+ ret = lutimes(output_path, tv);
+ #else
+ ret = -1;
+ errno = ENOSYS;
+ #endif
+ if (ret != 0) {
+ #ifdef HAVE_UTIME
+ if (errno == ENOSYS) {
+ struct utimbuf buf;
+ buf.actime = wim_timestamp_to_unix(inode->last_access_time);
+ buf.modtime = wim_timestamp_to_unix(inode->last_write_time);
+ if (utime(output_path, &buf) == 0)
+ return 0;
+ }
+ #endif
+ if (errno != ENOSYS || args->num_lutimes_warnings < 10) {
+ WARNING("Failed to set timestamp on file `%s': %s",
+ output_path, strerror(errno));
+ args->num_lutimes_warnings++;
+ }
}
return 0;
}
DEBUG("Extracting image %d", image);
int ret;
- ret = wimlib_select_image(w, image);
+ ret = select_wim_image(w, image);
if (ret != 0)
return ret;
struct extract_args args = {
- .w = w,
- .extract_flags = extract_flags,
- .output_dir = output_dir,
+ .w = w,
+ .extract_flags = extract_flags,
+ .output_dir = output_dir,
+ .num_lutimes_warnings = 0,
};
ret = for_dentry_in_tree(wim_root_dentry(w), extract_dentry, &args);
memcpy(buf, output_dir, output_path_len);
buf[output_path_len] = '/';
for (image = 1; image <= w->hdr.image_count; image++) {
-
+
image_name = wimlib_get_image_name(w, image);
if (*image_name) {
strcpy(buf + output_path_len + 1, image_name);
w->lookup_table = joined_tab;
}
-
- for_lookup_table_entry(w->lookup_table, zero_out_refcnts, NULL);
+ for_lookup_table_entry(w->lookup_table, lte_free_extracted_file, NULL);
if (image == WIM_ALL_IMAGES) {
flags |= WIMLIB_EXTRACT_FLAG_MULTI_IMAGE;