android13/external/ltp/testcases/kernel/syscalls/stat/stat01.c

103 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/* Copyright (c) International Business Machines Corp., 2001
* 07/2001 John George
* -Ported
*
* Verify that, stat(2) succeeds to get the status of a file and fills the
* stat structure elements regardless of whether process has or doesn't
* have read access to the file.
*/
#include <sys/types.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <pwd.h>
#include "tst_test.h"
#define FILE_SIZE 1024
#define TST_FILEREAD "test_fileread"
#define TST_FILENOREAD "test_filenoread"
#define READ_MODE 0666
#define NEW_MODE 0222
#define MASK 0777
uid_t user_id;
gid_t group_id;
struct passwd *ltpuser;
static struct tcase{
char *pathname;
unsigned int mode;
} TC[] = {
{TST_FILEREAD, READ_MODE},
{TST_FILENOREAD, NEW_MODE}
};
static void verify_stat(unsigned int n)
{
struct tcase *tc = TC + n;
struct stat stat_buf;
int fail = 0;
TEST(stat(tc->pathname, &stat_buf));
if (TST_RET == -1) {
tst_res(TFAIL | TTERRNO, "stat(%s) failed", tc->pathname);
return;
}
if (stat_buf.st_uid != user_id) {
tst_res(TFAIL, "stat_buf.st_uid = %i expected %i",
stat_buf.st_uid, user_id);
fail++;
}
if (stat_buf.st_gid != group_id) {
tst_res(TFAIL, "stat_buf.st_gid = %i expected %i",
stat_buf.st_gid, group_id);
fail++;
}
if (stat_buf.st_size != FILE_SIZE) {
tst_res(TFAIL, "stat_buf.st_size = %li expected %i",
(long)stat_buf.st_size, FILE_SIZE);
fail++;
}
if ((stat_buf.st_mode & MASK) != tc->mode) {
tst_res(TFAIL, "stat_buf.st_mode = %o expected %o",
(stat_buf.st_mode & MASK), tc->mode);
fail++;
}
if (!fail)
tst_res(TPASS, "stat(%s)", tc->pathname);
}
void setup(void)
{
unsigned int i;
ltpuser = SAFE_GETPWNAM("nobody");
SAFE_SETUID(ltpuser->pw_uid);
for (i = 0; i < ARRAY_SIZE(TC); i++) {
if (tst_fill_file(TC[i].pathname, 'a', 256, 4))
tst_brk(TBROK, "Failed to create tst file %s",
TC[i].pathname);
SAFE_CHMOD(TC[i].pathname, TC[i].mode);
}
user_id = getuid();
group_id = getgid();
}
static struct tst_test test = {
.tcnt = ARRAY_SIZE(TC),
.setup = setup,
.test = verify_stat,
.needs_root = 1,
.needs_tmpdir = 1,
};