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 "writeupdatermsg_fuzzer.h"
17 
18 #include <array>
19 #include <cstddef>
20 #include <cstdint>
21 #include <cstring>
22 #include "log/log.h"
23 #include "misc_info/misc_info.h"
24 #include "securec.h"
25 
26 using namespace Updater;
27 namespace OHOS {
FuzzWriteUpdaterMsg(const uint8_t * data,size_t size)28     void FuzzWriteUpdaterMsg(const uint8_t* data, size_t size)
29     {
30         UpdateMessage boot;
31         if (memcpy_s(boot.update, MAX_UPDATE_SIZE - 1, reinterpret_cast<const char*>(data), size) != EOK) {
32             return;
33         }
34         ReadUpdaterMiscMsg(boot);
35         const std::string path = "/dev/block/by_name/misc";
36         WriteUpdaterMessage(path, boot);
37         WriteUpdaterMiscMsg(boot);
38     }
FuzzWriteUpdaterPara()39     void FuzzWriteUpdaterPara()
40     {
41         UpdaterPara boot;
42         WriteUpdaterParaMisc(boot);
43         ReadUpdaterParaMisc(boot);
44         ClearUpdaterParaMisc();
45     }
46 }
47 
48 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)49 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
50 {
51     /* Run your code on data */
52     OHOS::FuzzWriteUpdaterMsg(data, size);
53     OHOS::FuzzWriteUpdaterPara();
54     return 0;
55 }
56 
57