Fixes a bug found by scan-build; bugfix on c2fa743806acc. Bug not in any released Tor.
@@ -1583,6 +1583,11 @@ node_get_prim_dirport(const node_t *node, tor_addr_port_t *ap_out)
node_assert_ok(node);
tor_assert(ap_out);
+ /* Clear the address, as a safety precaution if calling functions ignore the
+ * return value */
+ tor_addr_make_null(&ap_out->addr, AF_INET);
+ ap_out->port = 0;
+
/* Check ri first, because rewrite_node_address_for_bridge() updates
* node->ri with the configured bridge address. */