nits

lib/rules/api.h

@@ -21,6 +21,8 @@ KR_EXPORT
 void kr_rules_deinit(void);
 
 /** Try answering the query from local data.
+ *
+ * \return kr_error(): notably -ENOENT or 0
  *
  * FIXME: we probably want to ensure AA flags in answer as appropriate.
  *   Perhaps approach it like AD?  Tweak flags in ranked_rr_array_entry

lib/selection_forward.c

@@ -15,7 +15,7 @@ static_assert(FORWARDING_TIMEOUT >= KR_NS_TIMEOUT_MIN_DEAD_TIMEOUT,
 		"Bad combination of NS selection limits.");
 
 struct forward_local_state {
-	kr_sockaddr_array_t *targets;
+	const kr_sockaddr_array_t *targets; /// data owned by kr_request
 	struct address_state *addr_states;
 	/** Index of last choice in the targets array, used for error reporting. */
 	size_t last_choice_index;