ObjFW  Diff

		if (_IPv6Socket == nil) {
			of_socket_address_t address =
			    of_socket_address_parse_ip(@"::", 0);

			_IPv6Socket = [[OFUDPSocket alloc] init];
			[_IPv6Socket of_bindToAddress: &address
					    extraType: SOCK_DNS];
			_IPv6Socket.blocking = false;
			_IPv6Socket.delegate = self;
		}

		sock = _IPv6Socket;
		break;
#endif
	case OF_SOCKET_ADDRESS_FAMILY_IPV4:
		if (_IPv4Socket == nil) {
			of_socket_address_t address =
			    of_socket_address_parse_ip(@"0.0.0.0", 0);

			_IPv4Socket = [[OFUDPSocket alloc] init];
			[_IPv4Socket of_bindToAddress: &address
					    extraType: SOCK_DNS];
			_IPv4Socket.blocking = false;
			_IPv4Socket.delegate = self;
		}

		sock = _IPv4Socket;
		break;
	default:
		@throw [OFInvalidArgumentException exception];