47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* Copyright (C) 1991, 92, 94, 95, 96 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <signal.h>
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/* Set the mask of blocked signals to MASK,
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wait for a signal to arrive, and then restore the mask. */
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int
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__sigpause (mask)
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int mask;
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{
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sigset_t set;
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int sig;
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if (__sigemptyset (&set) < 0)
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return -1;
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if (sizeof (mask) == sizeof (set))
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*(int *) &set = mask;
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else if (sizeof (unsigned long int) == sizeof (set))
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*(unsigned long int *) &set = (unsigned int) mask;
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else
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for (sig = 1; sig < NSIG; ++sig)
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if ((mask & sigmask (sig)) && __sigaddset (&set, sig) < 0)
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return -1;
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return sigsuspend (&set);
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}
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weak_alias (__sigpause, sigpause)
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