1 /*
2 * Copyright (c) 2022-2023 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 "loadconfigxmlfile_fuzzer.h"
17
18 #define private public
19 #include "socperf.h"
20
21 namespace OHOS {
22 namespace SOCPERF {
23 const std::string fuzzedFile = "myFuzzed.xml";
24 const int32_t FILE_RETURN_SUCCESS = 1;
25 std::mutex mutexLock;
26 std::unique_ptr<SocPerf> socPerf = nullptr;
27
DoInit()28 bool DoInit()
29 {
30 std::lock_guard<std::mutex> lock(mutexLock);
31 if (socPerf) {
32 return true;
33 }
34 socPerf = std::make_unique<SocPerf>();
35 return socPerf != nullptr;
36 }
37
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)38 void DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
39 {
40 if (!DoInit()) {
41 return;
42 }
43
44 // generate fuzzed xml
45 FILE *pFile = fopen(fuzzedFile.c_str(), "wb");
46 if (!pFile) {
47 return;
48 }
49
50 int32_t retCode = fwrite(reinterpret_cast<const void*>(data), size, 1, pFile); // 1 means count=1
51 if (retCode < FILE_RETURN_SUCCESS) {
52 (void)fclose(pFile);
53 pFile = nullptr;
54 return;
55 }
56
57 (void)fclose(pFile);
58 pFile = nullptr;
59 socPerf->socPerfConfig_.LoadConfigXmlFile(fuzzedFile);
60 }
61 } // namespace SOCPERF
62 } // namespace OHOS
63
64 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)65 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
66 {
67 /* Run your code on data */
68 OHOS::SOCPERF::DoSomethingInterestingWithMyAPI(data, size);
69 return 0;
70 }
71