1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16
17#include <fcntl.h>
18#include <stdio.h>
19#include <stdlib.h>
20#include <unistd.h>
21#include "test.h"
22
23/**
24 * @tc.name      : unlockpt_0100
25 * @tc.desc      : Test the unlockpt method to gain access to the pseudo-terminal
26 * @tc.level     : Level 0
27 */
28void unlockpt_0100(void)
29{
30    int result;
31
32    int fdm = open("/dev/ptmx", O_RDWR | O_NOCTTY);
33    if (fdm < 0) {
34        t_error("%s open master failed", __func__);
35        return;
36    }
37    result = grantpt(fdm);
38    if (result < 0) {
39        t_error("%s grantpt failed", __func__);
40        return;
41    }
42
43    result = unlockpt(fdm);
44    if (result < 0) {
45        t_error("%s unlockpt failed", __func__);
46        return;
47    }
48}
49
50int main(int argc, char *argv[])
51{
52    unlockpt_0100();
53    return t_status;
54}