usr.bin/mail/fio.c
/*
 * Hold signals SIGHUP, SIGINT, and SIGQUIT.
 */
Hold signals SIGHUP, SIGINT, and SIGQUIT.
Hold signals SIGHUP SIGINT and SIGQUIT .
void
holdsigs()
{
	if (sigdepth++ == 0)
		omask = sigblock(sigmask(SIGHUP)|sigmask(SIGINT)|sigmask(SIGQUIT));
}
void holdsigs ( ) { if ( sigdepth ++ == 0 ) omask = sigblock ( sigmask ( SIGHUP ) | sigmask ( SIGINT ) | sigmask ( SIGQUIT ) ) ; }
Hold signals SIGHUP, SIGINT, and SIGQUIT.
Hold signals SIGHUP SIGINT and SIGQUIT .