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/* $OpenBSD: sigkill.c,v 1.2 2015/08/23 04:59:31 semarie Exp $ */
/*
* Copyright (c) 2015 Sebastien Marie <semarie@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/tame.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
void
handler(int sigraised)
{
/* the handler shouldn't not be called */
printf("forbidden STDIO in %d handler\n", sigraised);
}
int
main(int argc, char *argv[])
{
/* install some handlers */
signal(SIGHUP, &handler);
signal(SIGABRT, &handler);
printf("permitted STDIO\n");
fflush(stdout);
tame(0, NULL);
/* this will triggered tame_fail() */
printf("forbidden STDIO 1\n");
/* shouldn't continue */
printf("forbidden STDIO 2\n");
return (EXIT_SUCCESS);
}
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