strace/tests/fchmodat.c
Dmitry V. Levin 96a9ff5746 tests: do not include <errno.h> unnecessarily
Automatically change tests/*.c files using the following script:

for f in tests/*.c; do
	grep -Fv errno.h "$f" |
	grep -Ewq '(si_)?errno|SOCK_FILTER_DENY_SYSCALL' ||
		sed -i '/# *include *<errno\.h>/d' "$f"
done
2016-04-21 22:05:57 +00:00

69 lines
2.2 KiB
C

/*
* Check decoding of fchmodat syscall.
*
* 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 __NR_fchmodat
# include <fcntl.h>
# include <stdio.h>
# include <unistd.h>
int
main(void)
{
static const char sample[] = "fchmodat_sample";
if (open(sample, O_RDONLY | O_CREAT, 0400) == -1)
perror_msg_and_fail("open");
if (syscall(__NR_fchmodat, -100, sample, 0600) == 0) {
printf("fchmodat(AT_FDCWD, \"%s\", 0600) = 0\n", sample);
if (unlink(sample))
perror_msg_and_fail("unlink");
if (syscall(__NR_fchmodat, -100, sample, 0600) != -1)
perror_msg_and_fail("fchmodat");
}
printf("fchmodat(AT_FDCWD, \"%s\", 0600) = -1 %s (%m)\n",
sample, errno2name());
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_fchmodat")
#endif