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/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
Contributed by David Mosberger (davidm@azstarnet.com).
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
#include <signal.h>
extern unsigned long __osf_sigprocmask (int how, unsigned long newmask);
int
__sigprocmask (int how, const sigset_t *set, sigset_t *oset)
{
sigset_t setval;
long result;
if (set) {
setval = *set;
} else {
sigemptyset(&setval);
how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */
}
result = __osf_sigprocmask(how, setval);
if (result == -1) {
/* if there are ever more than 63 signals, we need to recode this
in assembler since we wouldn't be able to distinguish a mask of
all 1s from -1, but for now, we're doing just fine... */
return result;
}
if (oset) {
*oset = result;
}
return 0;
}
weak_alias (__sigprocmask, sigprocmask);
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