+/**
+ * Stat either a symlink or its referent, depending on the settings of
+ * copy_links, copy_unsafe_links, etc.
+ *
+ * @retval -1 on error
+ *
+ * @retval 0 for success
+ *
+ * @post If @p path is a symlink, then @p linkbuf (of size @c
+ * MAXPATHLEN) contains the symlink target.
+ *
+ * @post @p buffer contains information about the link or the
+ * referrent as appropriate, if they exist.
+ **/
+int readlink_stat(const char *path, STRUCT_STAT * buffer, char *linkbuf)