# include <alloca.h>
#endif
-#if TCHAR_IS_UTF16LE
-# include <wchar.h>
-#endif
-
#ifndef __WIN32__
+
+/* Returns the number of components of @path. */
+static unsigned
+get_num_path_components(const char *path)
+{
+ unsigned num_components = 0;
+ while (*path) {
+ while (*path == '/')
+ path++;
+ if (*path)
+ num_components++;
+ while (*path && *path != '/')
+ path++;
+ }
+ return num_components;
+}
+
+static const char *
+path_next_part(const char *path)
+{
+ while (*path && *path != '/')
+ path++;
+ while (*path && *path == '/')
+ path++;
+ return path;
+}
+
static int
extract_regular_file_linked(struct wim_dentry *dentry,
const char *output_path,
size_t i;
num_path_components =
- get_num_path_components(dentry->full_path) - 1;
+ get_num_path_components(dentry_full_path(dentry)) - 1;
num_output_dir_path_components =
get_num_path_components(args->target);
p2 = lte->extracted_file;
while (*p2 == '/')
p2++;
- while (num_output_dir_path_components--)
- p2 = path_next_part(p2, NULL);
+ while (num_output_dir_path_components > 0) {
+ p2 = path_next_part(p2);
+ num_output_dir_path_components--;
+ }
strcpy(p, p2);
if (symlink(buf, output_path) != 0) {
ERROR_WITH_ERRNO("Failed to symlink `%s' to `%s'",
}
static int
-symlink_apply_unix_data(const mbchar *link,
+symlink_apply_unix_data(const char *link,
const struct wimlib_unix_data *unix_data)
{
if (lchown(link, unix_data->uid, unix_data->gid)) {
}
ret = extract_wim_resource_to_fd(lte, out_fd, wim_resource_size(lte));
- if (ret != 0) {
+ if (ret) {
ERROR("Failed to extract resource to `%s'", output_path);
goto out;
}
{
char target[4096];
ssize_t ret = inode_readlink(dentry->d_inode, target,
- sizeof(target), args->w, 0);
+ sizeof(target), args->w, false);
struct wim_lookup_table_entry *lte;
if (ret <= 0) {
ERROR("Could not read the symbolic link from dentry `%s'",
- dentry->full_path);
+ dentry_full_path(dentry));
return WIMLIB_ERR_INVALID_DENTRY;
}
ret = symlink(target, output_path);
if (dentry_is_root(dentry)) {
output_path = (tchar*)args->target;
} else {
+ if (!dentry_full_path(dentry))
+ return WIMLIB_ERR_NOMEM;
output_path = alloca(len * sizeof(tchar) + dentry->full_path_nbytes +
sizeof(tchar));
memcpy(output_path, args->target, len * sizeof(tchar));
- memcpy(output_path + len, dentry->full_path, dentry->full_path_nbytes);
+ memcpy(output_path + len, dentry->_full_path, dentry->full_path_nbytes);
len += dentry->full_path_nbytes / sizeof(tchar);
output_path[len] = T('\0');
}
if (dentry_is_root(dentry)) {
output_path = (tchar*)args->target;
} else {
+ if (!dentry_full_path(dentry))
+ return WIMLIB_ERR_NOMEM;
output_path = alloca(len * sizeof(tchar) + dentry->full_path_nbytes +
sizeof(tchar));
memcpy(output_path, args->target, len * sizeof(tchar));
- memcpy(output_path + len, dentry->full_path, dentry->full_path_nbytes);
+ memcpy(output_path + len, dentry->_full_path, dentry->full_path_nbytes);
len += dentry->full_path_nbytes / sizeof(tchar);
output_path[len] = T('\0');
}
if (dentry->is_extracted)
return 0;
+ if (!dentry_full_path(dentry))
+ return WIMLIB_ERR_NOMEM;
+
if (args->extract_flags & WIMLIB_EXTRACT_FLAG_NO_STREAMS)
if (inode_unnamed_lte_resolved(dentry->d_inode))
return 0;
if ((args->extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE) &&
args->progress_func) {
- args->progress.extract.cur_path = dentry->full_path;
+ args->progress.extract.cur_path = dentry_full_path(dentry);
args->progress_func(WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY,
&args->progress);
}
return ret;
}
-static int
-cmp_streams_by_wim_position(const void *p1, const void *p2)
-{
- const struct wim_lookup_table_entry *lte1, *lte2;
- lte1 = *(const struct wim_lookup_table_entry**)p1;
- lte2 = *(const struct wim_lookup_table_entry**)p2;
- if (lte1->resource_entry.offset < lte2->resource_entry.offset)
- return -1;
- else if (lte1->resource_entry.offset > lte2->resource_entry.offset)
- return 1;
- else
- return 0;
-}
-
-static int
-sort_stream_list_by_wim_position(struct list_head *stream_list)
-{
- struct list_head *cur;
- size_t num_streams;
- struct wim_lookup_table_entry **array;
- size_t i;
- size_t array_size;
-
- num_streams = 0;
- list_for_each(cur, stream_list)
- num_streams++;
- array_size = num_streams * sizeof(array[0]);
- array = MALLOC(array_size);
- if (!array) {
- ERROR("Failed to allocate %zu bytes to sort stream entries",
- array_size);
- return WIMLIB_ERR_NOMEM;
- }
- cur = stream_list->next;
- for (i = 0; i < num_streams; i++) {
- array[i] = container_of(cur, struct wim_lookup_table_entry, staging_list);
- cur = cur->next;
- }
-
- qsort(array, num_streams, sizeof(array[0]), cmp_streams_by_wim_position);
-
- INIT_LIST_HEAD(stream_list);
- for (i = 0; i < num_streams; i++)
- list_add_tail(&array[i]->staging_list, stream_list);
- FREE(array);
- return 0;
-}
-
static void
calculate_bytes_to_extract(struct list_head *stream_list,
int extract_flags,
u64 num_streams = 0;
/* For each stream to be extracted... */
- list_for_each_entry(lte, stream_list, staging_list) {
+ list_for_each_entry(lte, stream_list, extraction_list) {
if (extract_flags &
(WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))
{
{
if (++lte->out_refcnt == 1) {
INIT_LIST_HEAD(<e->inode_list);
- list_add_tail(<e->staging_list, stream_list);
+ list_add_tail(<e->extraction_list, stream_list);
}
}
}
static void
-find_streams_for_extraction(struct hlist_head *inode_list,
+find_streams_for_extraction(struct wim_image_metadata *imd,
struct list_head *stream_list,
struct wim_lookup_table *lookup_table,
int extract_flags)
{
struct wim_inode *inode;
- struct hlist_node *cur;
struct wim_dentry *dentry;
for_lookup_table_entry(lookup_table, lte_zero_out_refcnt, NULL);
INIT_LIST_HEAD(stream_list);
- hlist_for_each_entry(inode, cur, inode_list, i_hlist) {
+ image_for_each_inode(inode, imd) {
if (!inode->i_resolved)
inode_resolve_ltes(inode, lookup_table);
inode_for_each_dentry(dentry, inode)
* sequential reading of the WIM can be implemented. */
/* For each distinct stream to be extracted */
- list_for_each_entry(lte, stream_list, staging_list) {
+ list_for_each_entry(lte, stream_list, extraction_list) {
/* For each inode that contains the stream */
list_for_each_entry(inode, <e->inode_list, i_lte_inode_list) {
/* For each dentry that points to the inode */
return 0;
}
+static int
+sort_stream_list_by_wim_position(struct list_head *stream_list)
+{
+ struct list_head *cur;
+ size_t num_streams;
+ struct wim_lookup_table_entry **array;
+ size_t i;
+ size_t array_size;
+
+ num_streams = 0;
+ list_for_each(cur, stream_list)
+ num_streams++;
+ array_size = num_streams * sizeof(array[0]);
+ array = MALLOC(array_size);
+ if (!array) {
+ ERROR("Failed to allocate %zu bytes to sort stream entries",
+ array_size);
+ return WIMLIB_ERR_NOMEM;
+ }
+ cur = stream_list->next;
+ for (i = 0; i < num_streams; i++) {
+ array[i] = container_of(cur, struct wim_lookup_table_entry, extraction_list);
+ cur = cur->next;
+ }
+
+ qsort(array, num_streams, sizeof(array[0]), cmp_streams_by_wim_position);
+
+ INIT_LIST_HEAD(stream_list);
+ for (i = 0; i < num_streams; i++)
+ list_add_tail(&array[i]->extraction_list, stream_list);
+ FREE(array);
+ return 0;
+}
+
+
/* Extracts the image @image from the WIM @w to the directory or NTFS volume
* @target. */
static int
{
int ret;
struct list_head stream_list;
- struct hlist_head *inode_list;
struct apply_args args;
const struct apply_operations *ops;
+ memset(&args, 0, sizeof(args));
+
args.w = w;
args.target = target;
args.extract_flags = extract_flags;
- args.num_utime_warnings = 0;
- args.stream_list = &stream_list;
args.progress_func = progress_func;
if (progress_func) {
ops = &normal_apply_operations;
ret = select_wim_image(w, image);
- if (ret != 0)
+ if (ret)
goto out;
- inode_list = &w->image_metadata[image - 1].inode_list;
-
/* Build a list of the streams that need to be extracted */
- find_streams_for_extraction(inode_list, &stream_list,
+ find_streams_for_extraction(wim_get_current_image_metadata(w),
+ &stream_list,
w->lookup_table, extract_flags);
/* Calculate the number of bytes of data that will be extracted */
return ret;
}
+static const tchar *filename_forbidden_chars =
+T(
+#ifdef __WIN32__
+"<>:\"/\\|?*"
+#else
+"/"
+#endif
+);
+/* This function checks if it is okay to use a WIM image's name as a directory
+ * name. */
static bool
image_name_ok_as_dir(const tchar *image_name)
{
- if (image_name == NULL)
- return false;
- if (image_name[0] == T('\0'))
- return false;
- if (tstrchr(image_name, T('/')))
- return false;
- if (tstrchr(image_name, T('\\')))
- return false;
- return true;
+ return image_name && *image_name &&
+ !tstrpbrk(image_name, filename_forbidden_chars);
}
/* Extracts all images from the WIM to the directory @target, with the images
if (ret)
return ret;
- wmemcpy(buf, target, output_path_len);
+ tmemcpy(buf, target, output_path_len);
buf[output_path_len] = T('/');
for (image = 1; image <= w->hdr.image_count; image++) {
image_name = wimlib_get_image_name(w, image);
if (image_name_ok_as_dir(image_name)) {
tstrcpy(buf + output_path_len + 1, image_name);
} else {
- /* Image name is empty, or may not be representable in
- * the current locale, or contains path separators. Use
- * the image number instead. */
+ /* Image name is empty, or contains forbidden
+ * characters. */
tsprintf(buf + output_path_len + 1, T("%d"), image);
}
ret = extract_single_image(w, image, buf, extract_flags,
git://wimlib.net / wimlib / blobdiff