1 /*	$OpenBSD: pause.c,v 1.7 2019/01/25 00:19:25 millert Exp $	*/
2 
3 /*
4  * Written by Todd C. Miller <millert@openbsd.org>
5  * Public domain.
6  */
7 
8 #include <signal.h>
9 #include <unistd.h>
10 
11 /*
12  * Backwards compatible pause(3).
13  */
14 int
pause(void)15 pause(void)
16 {
17 	sigset_t mask;
18 
19 	return (sigprocmask(SIG_BLOCK, NULL, &mask) ? -1 : sigsuspend(&mask));
20 }
21