SIGIOT
kill(tipout_pid, SIGIOT);
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
signal(SIGIOT, intIOT); /* scripting going on signal */
sigaddset(&mask, SIGIOT);