sig_ignore
(void)sig_ignore(SIGPIPE, &osa, &oset);
(void)sig_ignore(SIGPIPE, &osa, &oset);
(void)sig_ignore(SIGINT, &osa, &oset);
(void)sig_ignore(SIGINT, &osa, &oset);
(void)sig_ignore(SIGINT, &osa, &oset);
(void)sig_ignore(SIGINT, &osa, &oset);
(void)sig_ignore(SIGINT, &osa, &oset);
(void)sig_ignore(SIGPIPE, &osa, &oset);
int sig_ignore(int, struct sigaction *, sigset_t *);