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 "findfstabitemforpath_fuzzer.h"
17 #include <iostream>
18 #include <string>
19 #include "fs_manager/fs_manager.h"
20
21 namespace OHOS {
FuzzFindFstabItemForPath(const uint8_t * data,size_t size)22 bool FuzzFindFstabItemForPath(const uint8_t* data, size_t size)
23 {
24 bool result = false;
25 FILE *pFile = nullptr;
26 pFile = fopen("fstab.test", "w+");
27 if (pFile == nullptr) {
28 std::cout << "[fuzz] open file fstab.test failed";
29 return false;
30 }
31 if (fwrite(data, 1, size, pFile) != size) {
32 std::cout << "[fuzz] write data to fstab.test failed";
33 (void)fclose(pFile);
34 return false;
35 }
36 (void)fclose(pFile);
37 CloseStdout();
38 Fstab *fstab = ReadFstabFromFile("fstab.test", false);
39 if (fstab == nullptr) {
40 std::cout << "[fuzz] read file fstab.test failed";
41 return false;
42 }
43
44 std::string str(reinterpret_cast<const char*>(data), size);
45 if (FindFstabItemForPath(*fstab, str.c_str()) != nullptr) {
46 result = true;
47 };
48
49 return result;
50 }
51 }
52
53 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)54 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
55 {
56 /* Run your code on data */
57 OHOS::FuzzFindFstabItemForPath(data, size);
58 return 0;
59 }
60