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 "umountallwithfstabfile_fuzzer.h"
17  #include <iostream>
18  #include "fs_manager/fs_manager.h"
19  
20  namespace OHOS {
FuzzUmountAllWithFstabFile(const uint8_t * data,size_t size)21      bool FuzzUmountAllWithFstabFile(const uint8_t* data, size_t size)
22      {
23          bool result = false;
24          FILE *pFile = nullptr;
25          pFile = fopen("fstab.test", "w+");
26          if (pFile == nullptr) {
27              std::cout << "[fuzz] open file fstab.test failed";
28              return false;
29          }
30          if (fwrite(data, 1, size, pFile) != size) {
31              std::cout << "[fuzz] write data to fstab.test failed";
32              (void)fclose(pFile);
33              return false;
34          }
35          (void)fclose(pFile);
36          CloseStdout();
37          if (!UmountAllWithFstabFile("fstab.test")) {
38              result = true;
39          }
40          return result;
41      }
42  }
43  
44  /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)45  extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
46  {
47      /* Run your code on data */
48      OHOS::FuzzUmountAllWithFstabFile(data, size);
49      return 0;
50  }
51  
52