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38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* Copyright (C) 1991-2018 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <signal.h>
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#include <sigsetops.h>
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#include <internal-signals.h>
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/* Add SIGNO to SET. */
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int
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sigaddset (sigset_t *set, int signo)
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{
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if (set == NULL || signo <= 0 || signo >= NSIG
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|| __is_internal_signal (signo))
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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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__sigaddset (set, signo);
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return 0;
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}
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libc_hidden_def (sigaddset)
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