blob: 57387c9b8397d8c5786e71924e18c52dedf15e91 [file] [log] [blame]
/*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <sys/syscall.h>
#ifdef HAVE_PRCTL
# include <sys/prctl.h>
#endif
#if defined HAVE_PRCTL && defined PR_SET_SECCOMP && defined __NR_exit
# include <stdio.h>
# include <unistd.h>
int
main(void)
{
static const char text1[] =
"prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT) = 0\n";
static const char text2[] = "+++ exited with 0 +++\n";
int rc = prctl(PR_SET_SECCOMP, -1L, 1, 2, 3);
printf("prctl(PR_SET_SECCOMP, %#lx /* SECCOMP_MODE_??? */, 0x1, 0x2, 0x3)"
" = %d %s (%m)\n", -1L, rc, errno2name());
fflush(stdout);
rc = prctl(PR_SET_SECCOMP, 1);
if (rc) {
printf("prctl(PR_SET_SECCOMP, SECCOMP_MODE_STRICT)"
" = %d %s (%m)\n", rc, errno2name());
fflush(stdout);
rc = 0;
} else {
/*
* If kernel implementaton of SECCOMP_MODE_STRICT is buggy,
* the following syscall will result to SIGKILL.
*/
rc = write(1, text1, LENGTH_OF(text1)) != LENGTH_OF(text1);
}
rc += write(1, text2, LENGTH_OF(text2)) != LENGTH_OF(text2);
return !!syscall(__NR_exit, rc);
}
#else
SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_SET_SECCOMP && __NR_exit")
#endif