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/* BZ #19408 linux personality syscall wrapper test.
Copyright (C) 2015-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/personality.h>
#include <support/check.h>
static int
do_test (void)
{
unsigned int test_persona = -EINVAL;
unsigned int saved_persona;
errno = 0xdefaced;
saved_persona = personality (0xffffffff);
unsigned int r = personality (test_persona);
if (r == -1)
{
/* The syscall argument might be filtered by kernel, so the
test can not check for the bug issue. */
if (errno == EPERM)
FAIL_UNSUPPORTED ("personality syscall argument are filtered");
FAIL_EXIT1 ("personality (%#x) failed: %m", test_persona);
}
TEST_COMPARE (r, saved_persona);
TEST_VERIFY (personality (0xffffffff) != -1);
TEST_VERIFY (personality (PER_LINUX) != -1);
TEST_COMPARE (personality (0xffffffff), PER_LINUX);
TEST_COMPARE (0xdefaced, errno);
personality (saved_persona);
return 0;
}
#include <support/test-driver.c>
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