if (!lookup_name(fd, &ss, ss_len, name_buf, sizeof name_buf, port_buf, sizeof port_buf))
check_name(fd, &ss, ss_len, name_buf, port_buf);
if (!lookup_name(fd, &ss, ss_len, name_buf, sizeof name_buf, port_buf, sizeof port_buf))
check_name(fd, &ss, ss_len, name_buf, port_buf);