83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* Check how strace -e signal=set works.
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*
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* Copyright (c) 2016 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 <assert.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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static pid_t pid;
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static uid_t uid;
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static void
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handler(int sig)
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{
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}
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static void
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test_sig(int signo, const char *name)
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{
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const struct sigaction act = { .sa_handler = handler };
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if (sigaction(signo, &act, NULL))
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perror_msg_and_fail("sigaction: %d", signo);
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, signo);
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if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
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perror_msg_and_fail("sigprocmask: %d", signo);
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if (kill(pid, signo))
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perror_msg_and_fail("kill(%d, %d)", pid, signo);
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if (name && *name)
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printf("--- %s {si_signo=%s, si_code=SI_USER"
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", si_pid=%d, si_uid=%d} ---\n",
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name, name, pid, uid);
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}
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int
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main(int ac, const char **av)
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{
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assert(ac & 1);
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pid = getpid();
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uid = geteuid();
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int i;
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for (i = 1; i < ac; i += 2)
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test_sig(atoi(av[i]), av[i + 1]);
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puts("+++ exited with 0 +++");
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return 0;
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}
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