1169695Skan/* Version of sigsetmask.c
2169695Skan   Written by Steve Chamberlain (sac@cygnus.com).
3169695Skan   Contributed by Cygnus Support.
4169695Skan   This file is in the public doamin. */
5169695Skan
6169695Skan/*
7169695Skan
8169695Skan@deftypefn Supplemental int sigsetmask (int @var{set})
9169695Skan
10169695SkanSets the signal mask to the one provided in @var{set} and returns
11169695Skanthe old mask (which, for libiberty's implementation, will always
12169695Skanbe the value @code{1}).
13169695Skan
14169695Skan@end deftypefn
15169695Skan
16169695Skan*/
17169695Skan
18169695Skan#define _POSIX_SOURCE
19169695Skan#include <ansidecl.h>
20169695Skan/* Including <sys/types.h> seems to be needed by ISC. */
21169695Skan#include <sys/types.h>
22169695Skan#include <signal.h>
23169695Skan
24169695Skanextern void abort (void) ATTRIBUTE_NORETURN;
25169695Skan
26169695Skan#ifdef SIG_SETMASK
27169695Skanint
28169695Skansigsetmask (int set)
29169695Skan{
30169695Skan    sigset_t new_sig;
31169695Skan    sigset_t old_sig;
32169695Skan
33169695Skan    sigemptyset (&new_sig);
34169695Skan    if (set != 0) {
35169695Skan      abort();	/* FIXME, we don't know how to translate old mask to new */
36169695Skan    }
37169695Skan    sigprocmask(SIG_SETMASK, &new_sig, &old_sig);
38169695Skan    return 1;	/* FIXME, we always return 1 as old value.  */
39169695Skan}
40169695Skan#endif
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