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/* Version of sigsetmask.c

   Written by Steve Chamberlain (sac@cygnus.com).

   Contributed by Cygnus Support.

   This file is in the public doamin. */

/*

@deftypefn Supplemental int sigsetmask (int @var{set})

Sets the signal mask to the one provided in @var{set} and returns

the old mask (which, for libiberty's implementation, will always

be the value @code{1}).

@end deftypefn

*/

#define _POSIX_SOURCE

#include <ansidecl.h>

/* Including <sys/types.h> seems to be needed by ISC. */

#include <sys/types.h>

#include <signal.h>

extern void abort PARAMS ((void)) ATTRIBUTE_NORETURN;

#ifdef SIG_SETMASK

int

DEFUN(sigsetmask,(set),

      int set)

{

    sigset_t new;

    sigset_t old;

    sigemptyset (&new);

    if (set != 0) {

      abort();  /* FIXME, we don't know how to translate old mask to new */

    }

    sigprocmask(SIG_SETMASK, &new, &old);

    return 1;   /* FIXME, we always return 1 as old value.  */

}

#endif