rem: int portnum;
add: unsigned int portnum;
context: parse_tcp_port(const char *port){	int portnum;	if ((portnum = string_to_number(port, 0, 65535)) != -1 ||	    (portnum = service_to_port(port)) != -1)		return (u_int16_t)portnum;	exit_error(PARAMETER_PROBLEM,		   "invalid TCP port/service `%s' specified", port);}