#include <string.h>
#include <errno.h>
+#ifdef WITH_NTFS_3G
+#include <ntfs-3g/volume.h>
+#endif
+
+/* Sets and creates the directory to which files are to be extracted when
+ * extracting files from the WIM. */
+static int set_output_dir(WIMStruct *w, const char *dir)
+{
+ char *p;
+ DEBUG("Setting output directory to `%s'", dir);
+
+ p = STRDUP(dir);
+ if (!p) {
+ ERROR("Out of memory");
+ return WIMLIB_ERR_NOMEM;
+ }
+
+ if (mkdir(dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) {
+ if (errno == EEXIST) {
+ DEBUG("`%s' already exists", dir);
+ goto done;
+ }
+ ERROR_WITH_ERRNO("Cannot create directory `%s'", dir);
+ FREE(p);
+ return WIMLIB_ERR_MKDIR;
+ } else {
+ DEBUG("Created directory `%s'", dir);
+ }
+done:
+ FREE(w->output_dir);
+ w->output_dir = p;
+ return 0;
+}
/*
* Extracts a regular file from the WIM archive.
const struct dentry *dentry,
const char *output_path)
{
- struct lookup_table *lookup_table;
- int link_type;
- bool is_multi_image_extraction;
struct lookup_table_entry *lte;
int ret;
int out_fd;
const struct resource_entry *res_entry;
- lookup_table = w->lookup_table;
- link_type = w->link_type;
- is_multi_image_extraction = w->is_multi_image_extraction;
- lte = lookup_resource(lookup_table, dentry->hash);
+ lte = lookup_resource(w->lookup_table, dentry->hash);
/* If we already extracted the same file or a hard link copy of it, we
* may be able to simply create a link. The exact action is specified
* by the current @link_type. */
- if (link_type != WIM_LINK_TYPE_NONE && lte && lte->out_refcnt != 0) {
+ if ((w->extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK)) &&
+ lte && lte->out_refcnt != 0)
+ {
wimlib_assert(lte->file_on_disk);
- if (link_type == WIM_LINK_TYPE_HARD) {
+ if (w->extract_flags & WIMLIB_EXTRACT_FLAG_HARDLINK) {
if (link(lte->file_on_disk, output_path) != 0) {
ERROR_WITH_ERRNO("Failed to hard link "
"`%s' to `%s'",
num_output_dir_path_components =
get_num_path_components(w->output_dir);
- if (is_multi_image_extraction) {
+ if (w->is_multi_image_extraction) {
num_path_components++;
num_output_dir_path_components--;
}
size_t len = strlen(w->output_dir);
char output_path[len + dentry->full_path_utf8_len + 1];
- if (w->verbose)
+ if (w->extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE)
puts(dentry->full_path_utf8);
memcpy(output_path, w->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';
-
if (dentry_is_regular_file(dentry)) {
return extract_regular_file(w, dentry, output_path);
} else {
/* Image name is empty. Use image number instead */
sprintf(buf + output_path_len + 1, "%d", image);
}
- ret = wimlib_set_output_dir(w, buf);
+ ret = set_output_dir(w, buf);
if (ret != 0)
goto done;
ret = extract_single_image(w, image);
done:
/* Restore original output directory */
buf[output_path_len + 1] = '\0';
- return wimlib_set_output_dir(w, buf);
+ return 0;
}
/* Extracts a single image or all images from a WIM file. */
-WIMLIBAPI int wimlib_extract_image(WIMStruct *w, int image)
+WIMLIBAPI int wimlib_extract_image(WIMStruct *w, int image,
+ const char *output_dir, int flags)
{
- if (!w->output_dir) {
- ERROR("No output directory selected.");
- return WIMLIB_ERR_NOTDIR;
+ int ret;
+ if (!output_dir)
+ return WIMLIB_ERR_INVALID_PARAM;
+ if ((flags & (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))
+ == (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))
+ return WIMLIB_ERR_INVALID_PARAM;
+
+ ret = set_output_dir(w, output_dir);
+ if (ret != 0)
+ return ret;
+
+ if ((flags & WIMLIB_EXTRACT_FLAG_NTFS)) {
+ #ifdef WITH_NTFS_3G
+ unsigned long mnt_flags;
+ ret = ntfs_check_if_mounted(output_dir, &mnt_flags);
+ if (ret != 0) {
+ ERROR_WITH_ERRNO("NTFS-3g: Cannot determine if `%s' "
+ "is mounted", output_dir);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ if (!(mnt_flags & NTFS_MF_MOUNTED)) {
+ ERROR("NTFS-3g: Filesystem on `%s' is not mounted ",
+ output_dir);
+ }
+ if (mnt_flags & NTFS_MF_READONLY) {
+ ERROR("NTFS-3g: Filesystem on `%s' is mounted "
+ "read-only", output_dir);
+ return WIMLIB_ERR_NTFS_3G;
+ }
+ #else
+ ERROR("wimlib was compiled without support for NTFS-3g, so");
+ ERROR("we cannot extract a WIM image while preserving NTFS-");
+ ERROR("specific information");
+ return WIMLIB_ERR_UNSUPPORTED;
+ #endif
}
+ w->extract_flags = flags;
if (image == WIM_ALL_IMAGES) {
w->is_multi_image_extraction = true;
- return extract_all_images(w);
+ ret = extract_all_images(w);
} else {
w->is_multi_image_extraction = false;
- return extract_single_image(w, image);
- }
-
-}
-
-/* Sets and creates the directory to which files are to be extracted when
- * extracting files from the WIM. */
-WIMLIBAPI int wimlib_set_output_dir(WIMStruct *w, const char *dir)
-{
- char *p;
- DEBUG("Setting output directory to `%s'", dir);
-
- if (!dir) {
- ERROR("Must specify a directory!");
- return WIMLIB_ERR_INVALID_PARAM;
- }
- p = STRDUP(dir);
- if (!p) {
- ERROR("Out of memory");
- return WIMLIB_ERR_NOMEM;
- }
-
- if (mkdir(dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) {
- if (errno == EEXIST) {
- DEBUG("`%s' already exists", dir);
- goto done;
- }
- ERROR_WITH_ERRNO("Cannot create directory `%s'", dir);
- FREE(p);
- return WIMLIB_ERR_MKDIR;
- } else {
- DEBUG("Created directory `%s'", dir);
+ ret = extract_single_image(w, image);
}
-done:
- FREE(w->output_dir);
- w->output_dir = p;
- return 0;
-}
+ return ret;
-WIMLIBAPI int wimlib_set_link_type(WIMStruct *w, int link_type)
-{
- switch (link_type) {
- case WIM_LINK_TYPE_NONE:
- case WIM_LINK_TYPE_HARD:
- case WIM_LINK_TYPE_SYMBOLIC:
- w->link_type = link_type;
- return 0;
- default:
- return WIMLIB_ERR_INVALID_PARAM;
- }
}
-
git://wimlib.net / wimlib / blobdiff