82 lines
1.5 KiB
C
82 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
* Ported to LTP: Wayne Boyer
|
|
* 06/2017 Modified by Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
|
|
*/
|
|
/*
|
|
* DESCRIPTION
|
|
* 1. open a new file without O_CREAT, ENOENT should be returned.
|
|
* 2. open a file with O_RDONLY | O_NOATIME and the caller was not
|
|
* privileged, EPERM should be returned.
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <pwd.h>
|
|
#include "tst_test.h"
|
|
|
|
#define TEST_FILE "test_file"
|
|
#define TEST_FILE2 "test_file2"
|
|
|
|
static struct tcase {
|
|
char *filename;
|
|
int flag;
|
|
int exp_errno;
|
|
} tcases[] = {
|
|
{TEST_FILE, O_RDWR, ENOENT},
|
|
{TEST_FILE2, O_RDONLY | O_NOATIME, EPERM},
|
|
};
|
|
|
|
void setup(void)
|
|
{
|
|
struct passwd *ltpuser;
|
|
|
|
SAFE_TOUCH(TEST_FILE2, 0644, NULL);
|
|
|
|
ltpuser = SAFE_GETPWNAM("nobody");
|
|
|
|
SAFE_SETEUID(ltpuser->pw_uid);
|
|
}
|
|
|
|
static void verify_open(unsigned int n)
|
|
{
|
|
struct tcase *tc = &tcases[n];
|
|
|
|
TEST(open(tc->filename, tc->flag, 0444));
|
|
|
|
if (TST_RET != -1) {
|
|
tst_res(TFAIL, "open(%s) succeeded unexpectedly",
|
|
tc->filename);
|
|
return;
|
|
}
|
|
|
|
if (tc->exp_errno != TST_ERR) {
|
|
tst_res(TFAIL | TTERRNO,
|
|
"open() should fail with %s",
|
|
tst_strerrno(tc->exp_errno));
|
|
return;
|
|
}
|
|
|
|
tst_res(TPASS | TTERRNO, "open() failed as expected");
|
|
}
|
|
|
|
void cleanup(void)
|
|
{
|
|
SAFE_SETEUID(0);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
.needs_root = 1,
|
|
.needs_tmpdir = 1,
|
|
.setup = setup,
|
|
.cleanup = cleanup,
|
|
.test = verify_open,
|
|
};
|