libiberty/sigsetmask.c

   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
  16 int
  17 DEFUN(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