58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/*
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* List signal numbers that are valid arguments for sigaction syscall.
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*
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* Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <signal.h>
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#include <stdio.h>
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int
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main(void)
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{
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unsigned int i;
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for (i = 1; i < 32; ++i) {
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static const struct sigaction ign = { .sa_handler = SIG_IGN };
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static const struct sigaction dfl = { .sa_handler = SIG_DFL };
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struct sigaction act;
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if (sigaction(i, &ign, NULL) ||
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sigaction(i, NULL, &act) ||
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ign.sa_handler != act.sa_handler ||
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sigaction(i, &dfl, NULL) ||
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sigaction(i, NULL, &act) ||
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dfl.sa_handler != act.sa_handler)
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continue;
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printf("%u\n", i);
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}
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return 0;
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}
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