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 "getblockdevicebymountpoint_fuzzer.h"
17#include <iostream>
18#include "fs_manager/fs_manager.h"
19
20namespace OHOS {
21    bool FuzzGetBlockDeviceByMountPoint(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        const Fstab *fstab = ReadFstabFromFile("fstab.test", false);
38        std::string str(reinterpret_cast<const char*>(data), size);
39        char deviceName[100] = {0};
40        int length = sizeof(deviceName);
41        if (!GetBlockDeviceByMountPoint(str.c_str(), fstab, deviceName, length)) {
42            result = true;
43        }
44        return result;
45    }
46}
47
48/* Fuzzer entry point */
49extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
50{
51    /* Run your code on data */
52    OHOS::FuzzGetBlockDeviceByMountPoint(data, size);
53    return 0;
54}
55