1 /*
2 * Copyright (c) 2021 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 "readfstabfromfile_fuzzer.h"
17
18 #include <array>
19 #include <cstddef>
20 #include <cstdint>
21 #include <iostream>
22 #include <string>
23 #include <vector>
24 #include "fs_manager/fs_manager.h"
25 #include "log/log.h"
26
27 using namespace Updater;
28
29 namespace OHOS {
FuzzReadFstabFromFile(const uint8_t * data,size_t size)30 void FuzzReadFstabFromFile(const uint8_t* data, size_t size)
31 {
32 FILE *pFile;
33 Fstab *fstab = NULL;
34 const std::string fstabFile = "ReadFstabFromFile.txt";
35
36 pFile = fopen("ReadFstabFromFile.txt", "w+");
37 if (pFile == nullptr) {
38 LOG(ERROR) << "[fuzz]open file failed";
39 return;
40 }
41
42 (void)fwrite(data, 1, size, pFile);
43 (void)fclose(pFile);
44 fstab = ReadFstabFromFile(fstabFile.c_str(), false);
45 (void)remove("ReadFstabFromFile.txt");
46 ReleaseFstab(fstab);
47 }
48 }
49
50 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)51 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
52 {
53 /* Run your code on data */
54 OHOS::FuzzReadFstabFromFile(data, size);
55 return 0;
56 }
57