unplugged-system/external/ltp/testcases/kernel/syscalls/fstatfs/fstatfs02.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2001
*/
/*\
* [Description]
*
* Testcase to check if fstatfs() sets errno correctly.
*/
#include <errno.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/statfs.h>
#include <sys/wait.h>
#include "tst_test.h"
#include "tst_safe_macros.h"
static struct statfs buf;
static int fd;
static int bad_fd = -1;
static struct test_case_t {
int *fd;
struct statfs *sbuf;
int error;
} tests[] = {
{&bad_fd, &buf, EBADF},
{&fd, (void *)-1, EFAULT},
};
static void fstatfs_verify(unsigned int n)
{
int pid, status;
pid = SAFE_FORK();
if (!pid) {
TST_EXP_FAIL(fstatfs(*tests[n].fd, tests[n].sbuf), tests[n].error, "fstatfs()");
exit(0);
}
SAFE_WAITPID(pid, &status, 0);
if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
return;
if (tests[n].error == EFAULT &&
WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV) {
tst_res(TPASS, "Got SIGSEGV instead of EFAULT");
return;
}
tst_res(TFAIL, "Child %s", tst_strstatus(status));
}
static void setup(void)
{
fd = SAFE_OPEN("tempfile", O_RDWR | O_CREAT, 0700);
}
static void cleanup(void)
{
if (fd > 0)
SAFE_CLOSE(fd);
}
static struct tst_test test = {
.test = fstatfs_verify,
.tcnt = ARRAY_SIZE(tests),
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
.forks_child = 1,
};