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 <fcntl.h>
18 #include <stdio.h>
19 #include <string.h>
20 #include "test.h"
21
22 const char *path_in = "/data/tests/libc-test/src/file_in.txt";
23 const char *path_out = "/data/tests/libc-test/src/file_out.txt";
24 const char *str = "Hello";
25
26 /**
27 * @tc.name : copy_file_range_0100
28 * @tc.desc : Copy a range of data from one file to another
29 * @tc.level : Level 0
30 */
copy_file_range_0100(void)31 void copy_file_range_0100(void)
32 {
33 int fd_in, fd_out, wlen, result;
34 char buffer[BUFSIZ];
35
36 fd_in = open(path_in, O_RDWR | O_CREAT);
37 if (fd_in == -1) {
38 t_error("%s open path_in failed\n", __func__);
39 return;
40 }
41
42 wlen = write(fd_in, str, strlen(str));
43 if (wlen != strlen(str)) {
44 t_error("%s write failed\n", __func__);
45 return;
46 }
47
48 close(fd_in);
49 fd_in = open(path_in, O_RDONLY);
50
51 fd_out = open(path_out, O_RDWR | O_CREAT);
52 if (fd_out == -1) {
53 t_error("%s open path_out failed\n", __func__);
54 return;
55 }
56
57 do {
58 result = copy_file_range(fd_in, NULL, fd_out, NULL, wlen, 0);
59 if (result == -1) {
60 t_error("%s copy_file_range failed\n", __func__);
61 return;
62 }
63 wlen -= result;
64 } while (wlen > 0 && result > 0);
65
66 close(fd_out);
67 fd_out = open(path_out, O_RDONLY);
68 memset(buffer, 0, sizeof(buffer));
69 result = read(fd_out, buffer, sizeof(buffer));
70 if (result == -1) {
71 t_error("%s read failed\n", __func__);
72 }
73 if (strcmp(str, buffer)) {
74 t_error("%s buffer is %s, not %s", __func__, buffer, str);
75 }
76
77 close(fd_in);
78 close(fd_out);
79 remove(path_in);
80 remove(path_out);
81 }
82
83 /**
84 * @tc.name : copy_file_range_0200
85 * @tc.desc : One or more file descriptors are not valid
86 * @tc.level : Level 2
87 */
copy_file_range_0200(void)88 void copy_file_range_0200(void)
89 {
90 errno = 0;
91 int result = copy_file_range(-1, NULL, -1, NULL, 0, 0);
92 if (result != -1) {
93 t_error("%s copy_file_range should failed, result is %d\n", __func__, result);
94 }
95 if (errno != EBADF) {
96 t_error("%s errno is %d, not EBADF", __func__, errno);
97 }
98 }
99
100 /**
101 * @tc.name : copy_file_range_0300
102 * @tc.desc : File permissions are restricted
103 * @tc.level : Level 2
104 */
copy_file_range_0300(void)105 void copy_file_range_0300(void)
106 {
107 int fd_in, fd_out, wlen, result;
108 char buffer[BUFSIZ];
109
110 fd_in = open(path_in, O_WRONLY | O_CREAT);
111 if (fd_in == -1) {
112 t_error("%s open path_in failed\n", __func__);
113 return;
114 }
115
116 wlen = write(fd_in, str, strlen(str));
117 if (wlen != strlen(str)) {
118 t_error("%s write failed\n", __func__);
119 return;
120 }
121
122 close(fd_in);
123 fd_in = open(path_in, O_WRONLY);
124
125 fd_out = open(path_out, O_RDONLY | O_CREAT);
126 if (fd_out == -1) {
127 t_error("%s open path_out failed\n", __func__);
128 return;
129 }
130
131 errno = 0;
132 result = copy_file_range(fd_in, NULL, fd_out, NULL, wlen, 0);
133 if (result != -1) {
134 t_error("%s copy_file_range should failded\n", __func__);
135 }
136 if (errno != EBADF) {
137 t_error("%s errno is %d, not EBADF\n", __func__, errno);
138 }
139
140 close(fd_in);
141 close(fd_out);
142 remove(path_in);
143 remove(path_out);
144 }
145
main(int argc,char * argv[])146 int main(int argc, char *argv[])
147 {
148 copy_file_range_0100();
149 copy_file_range_0200();
150 copy_file_range_0300();
151 return t_status;
152 }