41 sm_signal(sig, handler)  in sm_signal()  argument
42 	int sig;  in sm_signal()
63 	if (sigaction(sig, &n, &o) < 0)
75 	return signal(sig, handler);
77 	return sigset(sig, handler);
88 	if (sigaction(sig, &n, &o) < 0)
107 sm_blocksignal(sig)  in sm_blocksignal()  argument
108 	int sig;  in sm_blocksignal()
114 	return (sigblock(sigmask(sig)) & sigmask(sig)) != 0;
119 	handler = sigset(sig, SIG_HOLD);
128 	(void) sigaddset(&sset, sig);
132 		return sigismember(&oset, sig);
149 sm_releasesignal(sig)  in sm_releasesignal()  argument
150 	int sig;  in sm_releasesignal()
153 	return (sigsetmask(sigblock(0) & ~sigmask(sig)) & sigmask(sig)) != 0;
158 	handler = sigset(sig, SIG_HOLD);
159 	if (sigrelse(sig) < 0)
167 	(void) sigaddset(&sset, sig);
171 		return sigismember(&oset, sig);
190 pend_signal(sig)  in pend_signal()  argument
191 	int sig;  in pend_signal()
207 	switch (sig)
333 sm_signal_noop(sig)  in sm_signal_noop()  argument
334 	int sig;  in sm_signal_noop()
338 	FIX_SYSV_SIGNAL(sig, sm_signal_noop);