X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fextract_image.c;h=d331dc0de70060944d900a527e1467ac5db4e219;hp=c0d951cb6279d49739e547efc317c35533a48dde;hb=a8972bde4b080d2dd33a7500705d431b0f1fe901;hpb=9e56d04309e3e6a896319225288f0c86bd36d34e

diff --git a/src/extract_image.c b/src/extract_image.c
index c0d951cb..d331dc0d 100644
--- a/src/extract_image.c
+++ b/src/extract_image.c
@@ -2,11 +2,6 @@
  * extract_image.c
  *
  * Support for extracting WIM files.
- *
- * This code does NOT contain any filesystem-specific features.  In particular,
- * security information (i.e. file permissions) and alternate data streams are
- * ignored, except possibly to read an alternate data stream that contains
- * symbolic link data.
  */
 
 /*
@@ -31,33 +26,70 @@
 #include "config.h"
 
 #include <dirent.h>
+
+#ifdef __WIN32__
+#  include "win32.h"
+#else
+#  ifdef HAVE_UTIME_H
+#    include <utime.h>
+#  endif
+#  include "timestamp.h"
+#  include <sys/time.h>
+#endif
+
 #include <errno.h>
 #include <fcntl.h>
+#include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
-#include <stdlib.h>
-#include <sys/time.h>
-
-#ifdef HAVE_UTIME_H
-#include <utime.h>
-#endif
-
 #include <unistd.h>
 
 #include "dentry.h"
 #include "lookup_table.h"
-#include "timestamp.h"
 #include "wimlib_internal.h"
 #include "xml.h"
 
 #ifdef WITH_NTFS_3G
-#include <ntfs-3g/volume.h>
+#  include <ntfs-3g/volume.h>
 #endif
 
-static int extract_regular_file_linked(struct wim_dentry *dentry,
-				       const char *output_path,
-				       struct apply_args *args,
-				       struct wim_lookup_table_entry *lte)
+#ifdef HAVE_ALLOCA_H
+#  include <alloca.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,
+			    struct apply_args *args,
+			    struct wim_lookup_table_entry *lte)
 {
 	/* This mode overrides the normal hard-link extraction and
 	 * instead either symlinks or hardlinks *all* identical files in
@@ -80,7 +112,7 @@ static int extract_regular_file_linked(struct wim_dentry *dentry,
 		size_t i;
 
 		num_path_components =
-			get_num_path_components(dentry->full_path_utf8) - 1;
+			get_num_path_components(dentry->full_path) - 1;
 		num_output_dir_path_components =
 			get_num_path_components(args->target);
 
@@ -101,12 +133,13 @@ static int extract_regular_file_linked(struct wim_dentry *dentry,
 		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'",
+			ERROR_WITH_ERRNO("Failed to symlink `%s' to `%s'",
 					 buf, lte->extracted_file);
 			return WIMLIB_ERR_LINK;
 		}
@@ -114,8 +147,9 @@ static int extract_regular_file_linked(struct wim_dentry *dentry,
 	return 0;
 }
 
-static int symlink_apply_unix_data(const char *link,
-				   const struct wimlib_unix_data *unix_data)
+static int
+symlink_apply_unix_data(const char *link,
+			const struct wimlib_unix_data *unix_data)
 {
 	if (lchown(link, unix_data->uid, unix_data->gid)) {
 		if (errno == EPERM) {
@@ -129,7 +163,8 @@ static int symlink_apply_unix_data(const char *link,
 	return 0;
 }
 
-static int fd_apply_unix_data(int fd, const struct wimlib_unix_data *unix_data)
+static int
+fd_apply_unix_data(int fd, const struct wimlib_unix_data *unix_data)
 {
 	if (fchown(fd, unix_data->uid, unix_data->gid)) {
 		if (errno == EPERM) {
@@ -153,8 +188,8 @@ static int fd_apply_unix_data(int fd, const struct wimlib_unix_data *unix_data)
 	return 0;
 }
 
-static int dir_apply_unix_data(const char *dir,
-			       const struct wimlib_unix_data *unix_data)
+static int
+dir_apply_unix_data(const char *dir, const struct wimlib_unix_data *unix_data)
 {
 	int dfd = open(dir, O_RDONLY);
 	int ret;
@@ -171,10 +206,11 @@ static int dir_apply_unix_data(const char *dir,
 	return ret;
 }
 
-static int extract_regular_file_unlinked(struct wim_dentry *dentry,
-				         struct apply_args *args,
-				         const char *output_path,
-				         struct wim_lookup_table_entry *lte)
+static int
+extract_regular_file_unlinked(struct wim_dentry *dentry,
+			      struct apply_args *args,
+			      const char *output_path,
+			      struct wim_lookup_table_entry *lte)
 {
 	/* Normal mode of extraction.  Regular files and hard links are
 	 * extracted in the way that they appear in the WIM. */
@@ -261,9 +297,10 @@ out:
 	return ret;
 }
 
-static int extract_regular_file(struct wim_dentry *dentry,
-				struct apply_args *args,
-				const char *output_path)
+static int
+extract_regular_file(struct wim_dentry *dentry,
+		     struct apply_args *args,
+		     const char *output_path)
 {
 	struct wim_lookup_table_entry *lte;
 	const struct wim_inode *inode = dentry->d_inode;
@@ -284,9 +321,10 @@ static int extract_regular_file(struct wim_dentry *dentry,
 	return extract_regular_file_unlinked(dentry, args, output_path, lte);
 }
 
-static int extract_symlink(struct wim_dentry *dentry,
-			   struct apply_args *args,
-			   const char *output_path)
+static int
+extract_symlink(struct wim_dentry *dentry,
+		struct apply_args *args,
+		const char *output_path)
 {
 	char target[4096];
 	ssize_t ret = inode_readlink(dentry->d_inode, target,
@@ -295,7 +333,7 @@ static int extract_symlink(struct wim_dentry *dentry,
 
 	if (ret <= 0) {
 		ERROR("Could not read the symbolic link from dentry `%s'",
-		      dentry->full_path_utf8);
+		      dentry->full_path);
 		return WIMLIB_ERR_INVALID_DENTRY;
 	}
 	ret = symlink(target, output_path);
@@ -322,35 +360,40 @@ static int extract_symlink(struct wim_dentry *dentry,
 	return 0;
 }
 
-static int extract_directory(struct wim_dentry *dentry,
-			     const char *output_path, bool is_root)
+#endif /* !__WIN32__ */
+
+static int
+extract_directory(struct wim_dentry *dentry,
+		  const tchar *output_path, bool is_root)
 {
 	int ret;
 	struct stat stbuf;
 
-	ret = stat(output_path, &stbuf);
+	ret = tstat(output_path, &stbuf);
 	if (ret == 0) {
 		if (S_ISDIR(stbuf.st_mode)) {
 			/*if (!is_root)*/
 				/*WARNING("`%s' already exists", output_path);*/
 			goto dir_exists;
 		} else {
-			ERROR("`%s' is not a directory", output_path);
+			ERROR("`%"TS"' is not a directory", output_path);
 			return WIMLIB_ERR_MKDIR;
 		}
 	} else {
 		if (errno != ENOENT) {
-			ERROR_WITH_ERRNO("Failed to stat `%s'", output_path);
+			ERROR_WITH_ERRNO("Failed to stat `%"TS"'", output_path);
 			return WIMLIB_ERR_STAT;
 		}
 	}
-	if (mkdir(output_path, S_IRWXU | S_IRGRP | S_IXGRP |
-			       S_IROTH | S_IXOTH) != 0) {
-		ERROR_WITH_ERRNO("Cannot create directory `%s'",
-				 output_path);
+
+	if (tmkdir(output_path, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH))
+	{
+		ERROR_WITH_ERRNO("Cannot create directory `%"TS"'", output_path);
 		return WIMLIB_ERR_MKDIR;
 	}
 dir_exists:
+	ret = 0;
+#ifndef __WIN32__
 	if (dentry) {
 		struct wimlib_unix_data unix_data;
 		ret = inode_get_unix_data(dentry->d_inode, &unix_data, NULL);
@@ -360,24 +403,18 @@ dir_exists:
 			ret = 0;
 		else
 			ret = dir_apply_unix_data(output_path, &unix_data);
-	} else {
-		ret = 0;
 	}
+#endif
 	return ret;
 }
 
-/* Extracts a file, directory, or symbolic link from the WIM archive. */
-static int apply_dentry_normal(struct wim_dentry *dentry, void *arg)
+#ifndef __WIN32__
+static int unix_do_apply_dentry(const char *output_path,
+				size_t output_path_len,
+				struct wim_dentry *dentry,
+				struct apply_args *args)
 {
-	struct apply_args *args = arg;
-	struct wim_inode *inode = dentry->d_inode;
-	size_t len;
-
-	len = strlen(args->target);
-	char output_path[len + dentry->full_path_utf8_len + 1];
-	memcpy(output_path, args->target, len);
-	memcpy(output_path + len, dentry->full_path_utf8, dentry->full_path_utf8_len);
-	output_path[len + dentry->full_path_utf8_len] = '\0';
+	const struct wim_inode *inode = dentry->d_inode;
 
 	if (inode_is_symlink(inode))
 		return extract_symlink(dentry, args, output_path);
@@ -389,52 +426,126 @@ static int apply_dentry_normal(struct wim_dentry *dentry, void *arg)
 		return extract_regular_file(dentry, args, output_path);
 }
 
-/* Apply timestamps to an extracted file or directory */
-static int apply_dentry_timestamps_normal(struct wim_dentry *dentry, void *arg)
+static int
+unix_do_apply_dentry_timestamps(const char *output_path,
+				size_t output_path_len,
+				const struct wim_dentry *dentry,
+				struct apply_args *args)
 {
-	struct apply_args *args = arg;
-	size_t len = strlen(args->target);
-	char output_path[len + dentry->full_path_utf8_len + 1];
-	const struct wim_inode *inode = dentry->d_inode;
 	int ret;
+	const struct wim_inode *inode = dentry->d_inode;
 
-	memcpy(output_path, args->target, len);
-	memcpy(output_path + len, dentry->full_path_utf8, dentry->full_path_utf8_len);
-	output_path[len + dentry->full_path_utf8_len] = '\0';
-
+#ifdef HAVE_UTIMENSAT
 	/* Convert the WIM timestamps, which are accurate to 100 nanoseconds,
-	 * into struct timeval's. */
-	struct timeval tv[2];
-	wim_timestamp_to_timeval(inode->i_last_access_time, &tv[0]);
-	wim_timestamp_to_timeval(inode->i_last_write_time, &tv[1]);
+	 * into `struct timespec's for passing to utimensat(), which is accurate
+	 * to 1 nanosecond. */
+
+	struct timespec ts[2];
+	ts[0] = wim_timestamp_to_timespec(inode->i_last_access_time);
+	ts[1] = wim_timestamp_to_timespec(inode->i_last_write_time);
+	ret = utimensat(AT_FDCWD, output_path, ts, AT_SYMLINK_NOFOLLOW);
+	if (ret)
+		ret = errno;
+#else
+	ret = ENOSYS;
+#endif
+
+	if (ret == ENOSYS) {
+		/* utimensat() not implemented or not available */
 	#ifdef HAVE_LUTIMES
-	ret = lutimes(output_path, tv);
-	#else
-	ret = -1;
-	errno = ENOSYS;
+		/* Convert the WIM timestamps, which are accurate to 100
+		 * nanoseconds, into `struct timeval's for passing to lutimes(),
+		 * which is accurate to 1 microsecond. */
+		struct timeval tv[2];
+		tv[0] = wim_timestamp_to_timeval(inode->i_last_access_time);
+		tv[1] = wim_timestamp_to_timeval(inode->i_last_write_time);
+		ret = lutimes(output_path, tv);
+		if (ret)
+			ret = errno;
+	#endif
+	}
+
+	if (ret == ENOSYS) {
+		/* utimensat() and lutimes() both not implemented or not
+		 * available */
+	#ifdef HAVE_UTIME
+		/* Convert the WIM timestamps, which are accurate to 100
+		 * nanoseconds, into a `struct utimbuf's for passing to
+		 * utime(), which is accurate to 1 second. */
+		struct utimbuf buf;
+		buf.actime = wim_timestamp_to_unix(inode->i_last_access_time);
+		buf.modtime = wim_timestamp_to_unix(inode->i_last_write_time);
+		ret = utime(output_path, &buf);
 	#endif
-	if (ret != 0) {
-		#ifdef HAVE_UTIME
-		if (errno == ENOSYS) {
-			struct utimbuf buf;
-			buf.actime = wim_timestamp_to_unix(inode->i_last_access_time);
-			buf.modtime = wim_timestamp_to_unix(inode->i_last_write_time);
-			if (utime(output_path, &buf) == 0)
-				return 0;
-		}
-		#endif
-		if (errno != ENOSYS || args->num_lutimes_warnings < 10) {
-			/*WARNING_WITH_ERRNO("Failed to set timestamp on file `%s',*/
-					    /*output_path");*/
-			args->num_lutimes_warnings++;
-		}
+	}
+	if (ret && args->num_utime_warnings < 10) {
+		WARNING_WITH_ERRNO("Failed to set timestamp on file `%s'",
+				    output_path);
+		args->num_utime_warnings++;
 	}
 	return 0;
 }
+#endif /* !__WIN32__ */
+
+/* Extracts a file, directory, or symbolic link from the WIM archive. */
+static int
+apply_dentry_normal(struct wim_dentry *dentry, void *arg)
+{
+	struct apply_args *args = arg;
+	tchar *output_path;
+	size_t len;
+
+	len = tstrlen(args->target);
+	if (dentry_is_root(dentry)) {
+		output_path = (tchar*)args->target;
+	} else {
+		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);
+		len += dentry->full_path_nbytes / sizeof(tchar);
+		output_path[len] = T('\0');
+	}
+#ifdef __WIN32__
+	return win32_do_apply_dentry(output_path, len, dentry, args);
+#else
+	return unix_do_apply_dentry(output_path, len, dentry, args);
+#endif
+}
+
+
+/* Apply timestamps to an extracted file or directory */
+static int
+apply_dentry_timestamps_normal(struct wim_dentry *dentry, void *arg)
+{
+	struct apply_args *args = arg;
+	size_t len;
+	tchar *output_path;
+
+	len = tstrlen(args->target);
+	if (dentry_is_root(dentry)) {
+		output_path = (tchar*)args->target;
+	} else {
+		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);
+		len += dentry->full_path_nbytes / sizeof(tchar);
+		output_path[len] = T('\0');
+	}
+
+
+#ifdef __WIN32__
+	return win32_do_apply_dentry_timestamps(output_path, len, dentry, args);
+#else
+	return unix_do_apply_dentry_timestamps(output_path, len, dentry, args);
+#endif
+}
 
 /* Extract a dentry if it hasn't already been extracted, and either the dentry
  * has no streams or WIMLIB_EXTRACT_FLAG_NO_STREAMS is not specified. */
-static int maybe_apply_dentry(struct wim_dentry *dentry, void *arg)
+static int
+maybe_apply_dentry(struct wim_dentry *dentry, void *arg)
 {
 	struct apply_args *args = arg;
 	int ret;
@@ -448,7 +559,7 @@ static int maybe_apply_dentry(struct wim_dentry *dentry, void *arg)
 
 	if ((args->extract_flags & WIMLIB_EXTRACT_FLAG_VERBOSE) &&
 	     args->progress_func) {
-		args->progress.extract.cur_path = dentry->full_path_utf8;
+		args->progress.extract.cur_path = dentry->full_path;
 		args->progress_func(WIMLIB_PROGRESS_MSG_EXTRACT_DENTRY,
 				    &args->progress);
 	}
@@ -458,55 +569,10 @@ static int maybe_apply_dentry(struct wim_dentry *dentry, void *arg)
 	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,
-				       union wimlib_progress_info *progress)
+static void
+calculate_bytes_to_extract(struct list_head *stream_list,
+			   int extract_flags,
+			   union wimlib_progress_info *progress)
 {
 	struct wim_lookup_table_entry *lte;
 	u64 total_bytes = 0;
@@ -535,8 +601,9 @@ static void calculate_bytes_to_extract(struct list_head *stream_list,
 	progress->extract.completed_bytes = 0;
 }
 
-static void maybe_add_stream_for_extraction(struct wim_lookup_table_entry *lte,
-					    struct list_head *stream_list)
+static void
+maybe_add_stream_for_extraction(struct wim_lookup_table_entry *lte,
+				struct list_head *stream_list)
 {
 	if (++lte->out_refcnt == 1) {
 		INIT_LIST_HEAD(&lte->inode_list);
@@ -544,9 +611,10 @@ static void maybe_add_stream_for_extraction(struct wim_lookup_table_entry *lte,
 	}
 }
 
-static void inode_find_streams_for_extraction(struct wim_inode *inode,
-					      struct list_head *stream_list,
-					      int extract_flags)
+static void
+inode_find_streams_for_extraction(struct wim_inode *inode,
+				  struct list_head *stream_list,
+				  int extract_flags)
 {
 	struct wim_lookup_table_entry *lte;
 	bool inode_added = false;
@@ -560,7 +628,7 @@ static void inode_find_streams_for_extraction(struct wim_inode *inode,
 #ifdef WITH_NTFS_3G
 	if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) {
 		for (unsigned i = 0; i < inode->i_num_ads; i++) {
-			if (inode->i_ads_entries[i].stream_name_len != 0) {
+			if (inode->i_ads_entries[i].stream_name_nbytes != 0) {
 				lte = inode->i_ads_entries[i].lte;
 				if (lte) {
 					maybe_add_stream_for_extraction(lte,
@@ -577,10 +645,11 @@ static void inode_find_streams_for_extraction(struct wim_inode *inode,
 #endif
 }
 
-static void find_streams_for_extraction(struct hlist_head *inode_list,
-					struct list_head *stream_list,
-					struct wim_lookup_table *lookup_table,
-					int extract_flags)
+static void
+find_streams_for_extraction(struct hlist_head *inode_list,
+			    struct list_head *stream_list,
+			    struct wim_lookup_table *lookup_table,
+			    int extract_flags)
 {
 	struct wim_inode *inode;
 	struct hlist_node *cur;
@@ -615,10 +684,11 @@ static const struct apply_operations ntfs_apply_operations = {
 };
 #endif
 
-static int apply_stream_list(struct list_head *stream_list,
-			     struct apply_args *args,
-			     const struct apply_operations *ops,
-			     wimlib_progress_func_t progress_func)
+static int
+apply_stream_list(struct list_head *stream_list,
+		  struct apply_args *args,
+		  const struct apply_operations *ops,
+		  wimlib_progress_func_t progress_func)
 {
 	uint64_t bytes_per_progress = args->progress.extract.total_bytes / 100;
 	uint64_t next_progress = bytes_per_progress;
@@ -670,9 +740,10 @@ static int apply_stream_list(struct list_head *stream_list,
 
 /* Extracts the image @image from the WIM @w to the directory or NTFS volume
  * @target. */
-static int extract_single_image(WIMStruct *w, int image,
-				const char *target, int extract_flags,
-				wimlib_progress_func_t progress_func)
+static int
+extract_single_image(WIMStruct *w, int image,
+		     const tchar *target, int extract_flags,
+		     wimlib_progress_func_t progress_func)
 {
 	int ret;
 	struct list_head stream_list;
@@ -681,12 +752,12 @@ static int extract_single_image(WIMStruct *w, int image,
 	struct apply_args args;
 	const struct apply_operations *ops;
 
-	args.w                    = w;
-	args.target               = target;
-	args.extract_flags        = extract_flags;
-	args.num_lutimes_warnings = 0;
-	args.stream_list          = &stream_list;
-	args.progress_func	  = progress_func;
+	memset(&args, 0, sizeof(args));
+
+	args.w                  = w;
+	args.target             = target;
+	args.extract_flags      = extract_flags;
+	args.progress_func      = progress_func;
 
 	if (progress_func) {
 		args.progress.extract.wimfile_name = w->filename;
@@ -701,7 +772,8 @@ static int extract_single_image(WIMStruct *w, int image,
 	if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) {
 		args.vol = ntfs_mount(target, 0);
 		if (!args.vol) {
-			ERROR_WITH_ERRNO("Failed to mount NTFS volume `%s'", target);
+			ERROR_WITH_ERRNO("Failed to mount NTFS volume `%"TS"'",
+					 target);
 			return WIMLIB_ERR_NTFS_3G;
 		}
 		ops = &ntfs_apply_operations;
@@ -782,7 +854,8 @@ out:
 	/* Unmount the NTFS volume */
 	if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) {
 		if (ntfs_umount(args.vol, FALSE) != 0) {
-			ERROR_WITH_ERRNO("Failed to unmount NTFS volume `%s'", args.target);
+			ERROR_WITH_ERRNO("Failed to unmount NTFS volume `%"TS"'",
+					 args.target);
 			if (ret == 0)
 				ret = WIMLIB_ERR_NTFS_3G;
 		}
@@ -791,33 +864,53 @@ out:
 	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)
+{
+	return image_name && *image_name &&
+		!tstrpbrk(image_name, filename_forbidden_chars);
+}
 
 /* Extracts all images from the WIM to the directory @target, with the images
  * placed in subdirectories named by their image names. */
-static int extract_all_images(WIMStruct *w, const char *target,
-			      int extract_flags,
-			      wimlib_progress_func_t progress_func)
+static int
+extract_all_images(WIMStruct *w,
+		   const tchar *target,
+		   int extract_flags,
+		   wimlib_progress_func_t progress_func)
 {
 	size_t image_name_max_len = max(xml_get_max_image_name_len(w), 20);
-	size_t output_path_len = strlen(target);
-	char buf[output_path_len + 1 + image_name_max_len + 1];
+	size_t output_path_len = tstrlen(target);
+	tchar buf[output_path_len + 1 + image_name_max_len + 1];
 	int ret;
 	int image;
-	const char *image_name;
+	const tchar *image_name;
 
 	ret = extract_directory(NULL, target, true);
-	if (ret != 0)
+	if (ret)
 		return ret;
 
-	memcpy(buf, target, output_path_len);
-	buf[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 && *image_name) {
-			strcpy(buf + output_path_len + 1, image_name);
+		if (image_name_ok_as_dir(image_name)) {
+			tstrcpy(buf + output_path_len + 1, image_name);
 		} else {
-			/* Image name is empty. Use image number instead */
-			sprintf(buf + output_path_len + 1, "%d", image);
+			/* 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,
 					   progress_func);
@@ -829,13 +922,14 @@ static int extract_all_images(WIMStruct *w, const char *target,
 
 /* Extracts a single image or all images from a WIM file to a directory or NTFS
  * volume. */
-WIMLIBAPI int wimlib_extract_image(WIMStruct *w,
-				   int image,
-				   const char *target,
-				   int extract_flags,
-				   WIMStruct **additional_swms,
-				   unsigned num_additional_swms,
-				   wimlib_progress_func_t progress_func)
+WIMLIBAPI int
+wimlib_extract_image(WIMStruct *w,
+		     int image,
+		     const tchar *target,
+		     int extract_flags,
+		     WIMStruct **additional_swms,
+		     unsigned num_additional_swms,
+		     wimlib_progress_func_t progress_func)
 {
 	struct wim_lookup_table *joined_tab, *w_tab_save;
 	int ret;
@@ -849,6 +943,17 @@ WIMLIBAPI int wimlib_extract_image(WIMStruct *w,
 			== (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))
 		return WIMLIB_ERR_INVALID_PARAM;
 
+#ifdef __WIN32__
+	if (extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) {
+		ERROR("Extracting UNIX data is not supported on Windows");
+		return WIMLIB_ERR_INVALID_PARAM;
+	}
+	if (extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK)) {
+		ERROR("Linked extraction modes are not supported on Windows");
+		return WIMLIB_ERR_INVALID_PARAM;
+	}
+#endif
+
 	if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) {
 #ifdef WITH_NTFS_3G
 		if ((extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))) {