50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
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Contributed by David Mosberger (davidm@azstarnet.com).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdep.h>
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#include <signal.h>
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extern unsigned long __osf_sigprocmask (int how, unsigned long newmask);
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int
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__sigprocmask (int how, const sigset_t *set, sigset_t *oset)
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{
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sigset_t setval;
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long result;
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if (set) {
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setval = *set;
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} else {
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sigemptyset(&setval);
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how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */
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}
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result = __osf_sigprocmask(how, setval);
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if (result == -1) {
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/* if there are ever more than 63 signals, we need to recode this
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in assembler since we wouldn't be able to distinguish a mask of
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all 1s from -1, but for now, we're doing just fine... */
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return result;
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}
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if (oset) {
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*oset = result;
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}
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return 0;
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}
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weak_alias (__sigprocmask, sigprocmask);
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