1/* Version of sigsetmask.c
2   Written by Steve Chamberlain (sac@cygnus.com).
3   Contributed by Cygnus Support.
4   This file is in the public doamin. */
5
6/* Set the current signal mask to the set provided, and return the
7   previous value */
8
9#define _POSIX_SOURCE
10#include <ansidecl.h>
11/* Including <sys/types.h> seems to be needed by ISC. */
12#include <sys/types.h>
13#include <signal.h>
14
15#ifdef SIG_SETMASK
16int
17DEFUN(sigsetmask,(set),
18      int set)
19{
20    sigset_t new;
21    sigset_t old;
22
23    sigemptyset (&new);
24    if (set != 0) {
25      abort();	/* FIXME, we don't know how to translate old mask to new */
26    }
27    sigprocmask(SIG_SETMASK, &new, &old);
28    return 1;	/* FIXME, we always return 1 as old value.  */
29}
30#endif
31