103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
* 07/2001 Ported by Wayne Boyer
|
|
* 05/2019 Ported to new library: Christian Amann <camann@suse.com>
|
|
*/
|
|
/*
|
|
* Tests different error scenarios:
|
|
*
|
|
* 1) Calls fstat() with closed file descriptor
|
|
* -> EBADF
|
|
* 2) Calls fstat() with an invalid address for stat structure
|
|
* -> EFAULT (or receive signal SIGSEGV)
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <wait.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "tst_test.h"
|
|
#include "tst_safe_macros.h"
|
|
|
|
#define TESTFILE "test_file"
|
|
|
|
static int fd_ok;
|
|
static int fd_ebadf = -1;
|
|
static struct stat stat_buf;
|
|
|
|
static struct tcase {
|
|
int *fd;
|
|
struct stat *stat_buf;
|
|
int exp_err;
|
|
} tcases[] = {
|
|
{&fd_ebadf, &stat_buf, EBADF},
|
|
{&fd_ok, NULL, EFAULT},
|
|
};
|
|
|
|
static void check_fstat(unsigned int tc_num)
|
|
{
|
|
struct tcase *tc = &tcases[tc_num];
|
|
|
|
TEST(fstat(*tc->fd, tc->stat_buf));
|
|
if (TST_RET == -1) {
|
|
if (tc->exp_err == TST_ERR) {
|
|
tst_res(TPASS,
|
|
"fstat() fails with expected error %s",
|
|
tst_strerrno(tc->exp_err));
|
|
} else {
|
|
tst_res(TFAIL | TTERRNO,
|
|
"fstat() did not fail with %s, but with",
|
|
tst_strerrno(tc->exp_err));
|
|
}
|
|
} else {
|
|
tst_res(TFAIL, "fstat() returned %ld, expected -1",
|
|
TST_RET);
|
|
}
|
|
}
|
|
|
|
static void run(unsigned int tc_num)
|
|
{
|
|
pid_t pid;
|
|
int status;
|
|
|
|
pid = SAFE_FORK();
|
|
if (pid == 0) {
|
|
check_fstat(tc_num);
|
|
return;
|
|
}
|
|
SAFE_WAITPID(pid, &status, 0);
|
|
|
|
if (tcases[tc_num].exp_err == EFAULT && WTERMSIG(status) == SIGSEGV) {
|
|
tst_res(TPASS, "fstat() failed as expected with SIGSEGV");
|
|
return;
|
|
}
|
|
|
|
if (WIFEXITED(status) && WEXITSTATUS(status) == 0)
|
|
return;
|
|
|
|
tst_res(TFAIL, "child %s", tst_strstatus(status));
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
fd_ok = SAFE_OPEN(TESTFILE, O_RDWR | O_CREAT, 0644);
|
|
}
|
|
|
|
static void cleanup(void)
|
|
{
|
|
if (fd_ok > 0)
|
|
SAFE_CLOSE(fd_ok);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.test = run,
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
.setup = setup,
|
|
.cleanup = cleanup,
|
|
.needs_tmpdir = 1,
|
|
.forks_child = 1,
|
|
};
|