ualarm
ualarm(useconds_t, useconds_t);
ualarm(exitDelay*1000, 1000);
ualarm (response_timeout * 1000, 0);
ualarm(TICKUNIT * (4 + 4 * lcp->LcpFailedMagic), 0);
ualarm(500000, 500000);
ualarm(0,0);