+/**
+ * Stat either a symlink or its referent, depending on the settings of
+ * copy_links, copy_unsafe_links, etc.
+ *
+ * @return -1 on error; or 0. If a symlink, then @p Linkbuf (of size
+ * MAXPATHLEN) contains the symlink target.
+ **/
+int readlink_stat(const char *path, STRUCT_STAT * buffer, char *linkbuf)