Fixed minor issues in RRL tests.

src/knot/server/rrl.c

@@ -297,6 +297,10 @@ static void rrl_log_state(const sockaddr_t *a, uint16_t flags, uint8_t cls)
 
 rrl_table_t *rrl_create(size_t size)
 {
+	if (size == 0) {
+		return NULL;
+	}
+	
 	const size_t tbl_len = sizeof(rrl_table_t) + size * sizeof(rrl_item_t);
 	rrl_table_t *t = malloc(tbl_len);
 	if (!t) return NULL;

src/tests/knot/rrl_tests.c

@@ -125,7 +125,11 @@ static int rrl_tests_run(int argc, char *argv[])
 	qst.qname = knot_dname_new_from_str("beef.", 5, NULL);
 	knot_packet_t *query = knot_packet_new(KNOT_PACKET_PREALLOC_QUERY);
 	knot_query_init(query);
-	knot_packet_set_max_size(query, 512);
+	if (knot_packet_set_max_size(query, 512) < 0) {
+		knot_dname_free(&qst.qname);
+		knot_packet_free(&query);
+		return KNOT_ERROR; /* Fatal */
+	}
 	knot_query_set_question(query, &qst);
 	
 	/* Prepare response */