1 /*
2 * Copyright (c) 2025 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 #include "processwatchermessage_fuzzer.h"
16 #include <string>
17 #include <memory>
18 #include "init_utils.h"
19 #include "securec.h"
20 #define private public
21 #include "watcher_manager.h"
22 #undef private
23 using namespace OHOS::init_param;
24
25 namespace OHOS {
FuzzProcessWatcherMessage(const uint8_t * data,size_t size)26 bool FuzzProcessWatcherMessage(const uint8_t* data, size_t size)
27 {
28 constexpr size_t minsize = sizeof(int) + sizeof(uint32_t) + 1;
29 if (size < minsize) {
30 return false;
31 }
32
33 int type = 0;
34 if (memcpy_s(&type, sizeof(int), data, sizeof(int)) != 0) {
35 return false;
36 }
37
38 uint32_t msgSize = 0;
39 if (memcpy_s(&msgSize, sizeof(uint32_t), data + sizeof(int), sizeof(uint32_t)) != 0) {
40 return false;
41 }
42
43 const char* name = reinterpret_cast<const char*>(data + sizeof(int) + sizeof(uint32_t));
44 size_t namelen = size - sizeof(int) - sizeof(uint32_t);
45
46 std::unique_ptr<char[]> safename = std::make_unique<char[]>(namelen + 1);
47 if (memcpy_s(safename.get(), namelen + 1, name, namelen) != 0) {
48 return false;
49 }
50 safename[namelen] = '\0';
51
52 ParamMessage* message = CreateParamMessage(type, safename.get(), msgSize);
53 if (message == nullptr) {
54 return false;
55 }
56 std::unique_ptr<WatcherManager> watcherManager = std::make_unique<WatcherManager>(0, true);
57 watcherManager->ProcessWatcherMessage(message);
58 free(message);
59 return true;
60 }
61 }
62
63 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)64 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
65 {
66 /* Run your code on data */
67 OHOS::FuzzProcessWatcherMessage(data, size);
68 return 0;
69 }