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sigsetmask.c
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1993-06-29
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/* Version of sigsetmask.c
Copyright 1991, 1992 Free Software Foundation, Inc.
Written by Steve Chamberlain (sac@cygnus.com).
Contributed by Cygnus Support.
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
Libiberty is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with libiberty; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* Set the current signal mask to the set provided, and return the
previous value */
#define _POSIX_SOURCE
#include <ansidecl.h>
#include <signal.h>
#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