1*8a16b7a1SPedro F. Giffuni /*-
2*8a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
3*8a16b7a1SPedro F. Giffuni *
458f0484fSRodney W. Grimes * Copyright (c) 1989, 1993
558f0484fSRodney W. Grimes * The Regents of the University of California. All rights reserved.
658f0484fSRodney W. Grimes *
758f0484fSRodney W. Grimes * Redistribution and use in source and binary forms, with or without
858f0484fSRodney W. Grimes * modification, are permitted provided that the following conditions
958f0484fSRodney W. Grimes * are met:
1058f0484fSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright
1158f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer.
1258f0484fSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright
1358f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the
1458f0484fSRodney W. Grimes * documentation and/or other materials provided with the distribution.
15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors
1658f0484fSRodney W. Grimes * may be used to endorse or promote products derived from this software
1758f0484fSRodney W. Grimes * without specific prior written permission.
1858f0484fSRodney W. Grimes *
1958f0484fSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2058f0484fSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2158f0484fSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2258f0484fSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2358f0484fSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2458f0484fSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2558f0484fSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2658f0484fSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2758f0484fSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2858f0484fSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2958f0484fSRodney W. Grimes * SUCH DAMAGE.
3058f0484fSRodney W. Grimes */
3158f0484fSRodney W. Grimes
32d201fe46SDaniel Eischen #include "namespace.h"
3358f0484fSRodney W. Grimes #include <signal.h>
34d201fe46SDaniel Eischen #include "un-namespace.h"
35d201fe46SDaniel Eischen #include "libc_private.h"
3658f0484fSRodney W. Grimes
3758f0484fSRodney W. Grimes /*
3858f0484fSRodney W. Grimes * Set signal state to prevent restart of system calls
3958f0484fSRodney W. Grimes * after an instance of the indicated signal.
4058f0484fSRodney W. Grimes */
4151295a4dSJordan K. Hubbard int
siginterrupt(int sig,int flag)42bd6060a1SKonstantin Belousov siginterrupt(int sig, int flag)
4358f0484fSRodney W. Grimes {
4461c2a618SJilles Tjoelker extern sigset_t _sigintr __hidden;
4558f0484fSRodney W. Grimes struct sigaction sa;
4658f0484fSRodney W. Grimes int ret;
4758f0484fSRodney W. Grimes
48bd6060a1SKonstantin Belousov if ((ret = __libc_sigaction(sig, (struct sigaction *)0, &sa)) < 0)
4958f0484fSRodney W. Grimes return (ret);
5058f0484fSRodney W. Grimes if (flag) {
5158f0484fSRodney W. Grimes sigaddset(&_sigintr, sig);
5258f0484fSRodney W. Grimes sa.sa_flags &= ~SA_RESTART;
5358f0484fSRodney W. Grimes } else {
5458f0484fSRodney W. Grimes sigdelset(&_sigintr, sig);
5558f0484fSRodney W. Grimes sa.sa_flags |= SA_RESTART;
5658f0484fSRodney W. Grimes }
57bd6060a1SKonstantin Belousov return (__libc_sigaction(sig, &sa, (struct sigaction *)0));
5858f0484fSRodney W. Grimes }
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