711                     if ((last_server->tcpfd == -1) &&  in tcp_request()
712                         (last_server->tcpfd =  in tcp_request()
714                         (!local_bind(last_server->tcpfd, &last_server->source_addr,  in tcp_request()
716                          connect(last_server->tcpfd, &last_server->addr.sa,  in tcp_request()
718                         close(last_server->tcpfd);  in tcp_request()
719                         last_server->tcpfd = -1;  in tcp_request()
722                     if (last_server->tcpfd == -1) continue;  in tcp_request()
727                     if (!read_write(last_server->tcpfd, &c1, 1, 0) ||  in tcp_request()
728                         !read_write(last_server->tcpfd, &c2, 1, 0) ||  in tcp_request()
729                         !read_write(last_server->tcpfd, packet, size, 0) ||  in tcp_request()
730                         !read_write(last_server->tcpfd, &c1, 1, 1) ||  in tcp_request()
731                         !read_write(last_server->tcpfd, &c2, 1, 1)) {  in tcp_request()
732                         close(last_server->tcpfd);  in tcp_request()
733                         last_server->tcpfd = -1;  in tcp_request()
738                     if (!read_write(last_server->tcpfd, packet, m, 1)) return packet;  in tcp_request()