android13/external/ltp/testcases/kernel/syscalls/fadvise/posix_fadvise03.c

132 lines
2.7 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) Red Hat Inc., 2007
*/
/*
* NAME
* posix_fadvise03.c
*
* DESCRIPTION
* Check the value that posix_fadvise returns for wrong ADVISE value.
*
* USAGE
* posix_fadvise03
*
* HISTORY
* 11/2007 Initial version by Masatake YAMATO <yamato@redhat.com>
*
* RESTRICTIONS
* None
*/
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include "tst_test.h"
#include "lapi/syscalls.h"
#include "lapi/abisize.h"
char fname[] = "/bin/cat"; /* test executable to open */
int fd = -1; /* initialized in open */
int expected_error = EINVAL;
int defined_advise[] = {
POSIX_FADV_NORMAL,
POSIX_FADV_SEQUENTIAL,
POSIX_FADV_RANDOM,
POSIX_FADV_WILLNEED,
#if defined(__s390__) && defined(TST_ABI32)
/* POSIX_FADV_DONTNEED and POSIX_FADV_NOREUSE are 6,7 on 31bit s390,
* but the kernel accepts 4,5 as well and rewrites them internally,
* see Linux kernel commit 068e1b94bbd268f375349f68531829c8b7c210bc
*
* since header definitions are incomplete - posix fcntl.h doesn't care
* and defines them as 4,5 while linux/fadvise.h (which uses 6,7)
* matches only 64bit - we need to hardcode the values here for
* all 4 cases, unfortunately
*/
4, /* POSIX_FADV_DONTNEED */
5, /* POSIX_FADV_NOREUSE */
6, /* POSIX_FADV_DONTNEED */
7, /* POSIX_FADV_NOREUSE */
#else
POSIX_FADV_DONTNEED,
POSIX_FADV_NOREUSE,
#endif
};
const int defined_advise_total = ARRAY_SIZE(defined_advise);
#define ADVISE_LIMIT 32
/* is_defined_advise:
Return 1 if advise is in defined_advise.
Return 0 if not. */
static int is_defined_advise(int advise)
{
int i;
for (i = 0; i < defined_advise_total; i++) {
if (defined_advise[i] == advise)
return 1;
}
return 0;
}
static void verify_fadvise(unsigned int n)
{
/* Don't use defined advise as an argument. */
if (is_defined_advise(n)) {
tst_res(TPASS, "skipping defined - advise = %d", n);
return;
}
TEST(posix_fadvise(fd, 0, 0, n));
if (TST_RET == 0) {
tst_res(TFAIL, "call succeeded unexpectedly");
return;
}
/* Man page says:
"On error, an error number is returned." */
if (TST_RET == expected_error) {
tst_res(TPASS,
"expected failure - "
"returned value = %ld, advise = %d : %s",
TST_RET,
n, tst_strerrno(TST_RET));
} else {
tst_res(TFAIL,
"unexpected return value - %ld : %s, advise %d - "
"expected %d",
TST_RET,
tst_strerrno(TST_RET),
n, expected_error);
}
}
static void setup(void)
{
fd = SAFE_OPEN(fname, O_RDONLY);
}
static void cleanup(void)
{
if (fd > 0)
SAFE_CLOSE(fd);
}
static struct tst_test test = {
.setup = setup,
.cleanup = cleanup,
.test = verify_fadvise,
.tcnt = ADVISE_LIMIT,
};