53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* Copyright (C) 1991, 1996, 1997, 1998 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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#include <stddef.h>
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#include <unistd.h>
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/* Change the set of blocked signals to SET,
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wait until a signal arrives, and restore the set of blocked signals. */
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int
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__sigsuspend (set)
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const sigset_t *set;
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{
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sigset_t oset;
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int save;
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if (set == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (sigprocmask (SIG_SETMASK, set, &oset) < 0)
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return -1;
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(void) pause();
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save = errno;
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if (sigprocmask (SIG_SETMASK, &oset, (sigset_t *) NULL) < 0)
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return -1;
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__set_errno (save);
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return -1;
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}
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weak_alias (__sigsuspend, sigsuspend)
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