196 	struct sigaction osa;  in do_default_handler()  local
205 	(void)sigaction(signo, &nsa, &osa);  in do_default_handler()
214 	(void)sigaction(signo, &osa, NULL);  in do_default_handler()
267 	struct sigaction osa;  in sig_setup()  local
305 	if (sigaction(SIGHUP, &sa, &osa) != -1 && osa.sa_handler == SIG_IGN)  in sig_setup()
308 	if (sigaction(SIGINT, &sa, &osa) != -1 && osa.sa_handler == SIG_IGN)  in sig_setup()
376 sig_ignore(int sig, struct sigaction *osa, sigset_t *oset)  in sig_ignore()  argument
385 	error = sigaction(sig, &act, osa);  in sig_ignore()
401 sig_restore(int sig, struct sigaction *osa, sigset_t *oset)  in sig_restore()  argument
408 	if (osa)  in sig_restore()
409 		error = sigaction(sig, osa, NULL);  in sig_restore()
420 sig_setflags(int signo, int flags, struct sigaction *osa)  in sig_setflags()  argument
426 	if (osa)  in sig_setflags()
427 		*osa = sa;  in sig_setflags()