1 /*
2 * Copyright (C) 2024 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 "commonutil_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <unistd.h>
21 #include "securec.h"
22 #include "common_util.h"
23
24 namespace OHOS {
25 namespace DHCP {
26 constexpr size_t DHCP_SLEEP_1 = 2;
27 constexpr size_t U32_AT_SIZE_ZERO = 4;
28
CommonUtilFuzzTest(const uint8_t * data,size_t size)29 void CommonUtilFuzzTest(const uint8_t* data, size_t size)
30 {
31 uint32_t index = 0;
32 char buf[] = {"aabbcc"};
33 size_t bufSize = static_cast<uint32_t>(data[index++]);
34 Tmspsec();
35 Tmspusec();
36 TrimString(buf);
37 RemoveSpaceCharacters(buf, bufSize);
38 }
39
GetFilePathTest(const uint8_t * data,size_t size)40 void GetFilePathTest(const uint8_t* data, size_t size)
41 {
42 const char *fileName = "wlan0";
43 (void)GetFilePath(fileName);
44 }
45
CreatePathTest(const uint8_t * data,size_t size)46 void CreatePathTest(const uint8_t* data, size_t size)
47 {
48 const char *fileName = "wlan0";
49 (void)CreatePath(fileName);
50 }
51
52 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)53 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
54 {
55 if ((data == nullptr) || (size <= OHOS::DHCP::U32_AT_SIZE_ZERO)) {
56 return 0;
57 }
58 sleep(DHCP_SLEEP_1);
59 OHOS::DHCP::CommonUtilFuzzTest(data, size);
60 OHOS::DHCP::GetFilePathTest(data, size);
61 OHOS::DHCP::CreatePathTest(data, size);
62 return 0;
63 }
64 } // namespace DHCP
65 } // namespace OHOS
66