strace/tests/setfsugid.c
Eugene Syromyatnikov 9d095c7860 Add copyright headers
2017-05-22 17:33:51 +00:00

78 lines
2.3 KiB
C

/*
* Check decoding of setfsuid/setfsgid/setfsuid32/setfsgid32 syscalls.
*
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2017 The strace developers.
* 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 <stdio.h>
#include <unistd.h>
void
printuid(unsigned UGID_TYPE id)
{
if (id == (unsigned UGID_TYPE) -1U)
printf("-1");
else
printf("%u", id);
}
int
main(void)
{
unsigned int ugid = GETUGID;
const kernel_ulong_t tests[] = {
ugid,
0xffff0000U | ugid,
F8ILL_KULONG_MASK | ugid,
0xffffU,
-1U,
-1L,
0xc0deffffU,
0xfacefeedU,
(long) 0xfacefeeddeadbeefULL
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(tests); ++i) {
const unsigned int num = (unsigned UGID_TYPE) tests[i];
unsigned int rc;
rc = syscall(SYSCALL_NR, tests[i]);
printf("%s(", SYSCALL_NAME);
printuid(num);
printf(") = %u\n", rc);
rc = syscall(SYSCALL_NR, ugid);
printf("%s(%u) = %u\n", SYSCALL_NAME, ugid, rc);
}
puts("+++ exited with 0 +++");
return 0;
}