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 */
unlockpt_0100(void)28 void unlockpt_0100(void)
29 {
30 int result;
31
32 int fdm = open("/dev/pts/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
main(int argc,char * argv[])50 int main(int argc, char *argv[])
51 {
52 unlockpt_0100();
53 return t_status;
54 }