+#ifdef __WIN32__
+static int
+dentry_compare_names_case_insensitive(const struct wim_dentry *d1,
+ const struct wim_dentry *d2)
+{
+ return compare_utf16le_names_case_insensitive(d1->file_name,
+ d1->file_name_nbytes,
+ d2->file_name,
+ d2->file_name_nbytes);
+}
+#endif /* __WIN32__ */
+
+static int
+dentry_compare_names_case_sensitive(const struct wim_dentry *d1,
+ const struct wim_dentry *d2)
+{
+ return compare_utf16le_names_case_sensitive(d1->file_name,
+ d1->file_name_nbytes,
+ d2->file_name,
+ d2->file_name_nbytes);
+}
+
+#ifdef __WIN32__
+# define dentry_compare_names dentry_compare_names_case_insensitive
+#else
+# define dentry_compare_names dentry_compare_names_case_sensitive
+#endif
+
+/* Return %true iff the alternate data stream entry @entry has the UTF-16LE
+ * stream name @name that has length @name_nbytes bytes. */
+static inline bool
+ads_entry_has_name(const struct wim_ads_entry *entry,
+ const utf16lechar *name, size_t name_nbytes)
+{
+ return !compare_utf16le_names(name, name_nbytes,
+ entry->stream_name,
+ entry->stream_name_nbytes);
+}
+
+/* Given a UTF-16LE filename and a directory, look up the dentry for the file.
+ * Return it if found, otherwise NULL. This is case-sensitive on UNIX and
+ * case-insensitive on Windows. */