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 #include <errno.h>
17 #include <stdio.h>
18 #include <string.h>
19 #include "test.h"
20
21 const char *path = "/data/tests/libc-test/src/file.txt";
22 const char *str = "Hello";
23
24 /**
25 * @tc.name : setbuffer_0100
26 * @tc.desc : The buffer type is _IOFBF
27 * @tc.level : Level 0
28 */
setbuffer_0100(void)29 void setbuffer_0100(void)
30 {
31 FILE *fp = fopen(path, "w+");
32 char buf[BUFSIZ] = {0};
33 errno = 0;
34 setbuffer(fp, buf, BUFSIZ);
35 if (errno != 0) {
36 t_error("%s failed: errno = %d\n", __func__, errno);
37 }
38
39 fputs(str, fp);
40 fflush(fp);
41 fclose(fp);
42
43 fp = fopen(path, "r");
44
45 memset(buf, 0, sizeof(buf));
46 fread(buf, sizeof(buf), 1, fp);
47
48 if (strcmp(buf, str)) {
49 t_error("%s failed: setbuf. buf = %s\n", __func__, buf);
50 }
51
52 fclose(fp);
53 remove(path);
54 }
55
56 /**
57 * @tc.name : setbuffer_0200
58 * @tc.desc : Stream buffering operations with NULL
59 * @tc.level : Level 1
60 */
setbuffer_0200(void)61 void setbuffer_0200(void)
62 {
63 FILE *f = fopen(path, "w+");
64
65 errno = 0;
66 setbuffer(f, NULL, BUFSIZ);
67 if (errno != 0) {
68 t_error("%s failed: errno = %d\n", __func__, errno);
69 }
70
71 fclose(f);
72 remove(path);
73 }
74
main(int argc,char * argv[])75 int main(int argc, char *argv[])
76 {
77 setbuffer_0100();
78 setbuffer_0200();
79 return t_status;
80 }