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