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 "unsubscribecommonevent_fuzzer.h" 17 #include "common_event_manager.h" 18 #include "fuzz_common_base.h" 19 20 namespace OHOS { 21 namespace EventFwk { 22 class TestSubscriber : public CommonEventSubscriber { 23 public: TestSubscriber(const CommonEventSubscribeInfo & sp)24 explicit TestSubscriber(const CommonEventSubscribeInfo &sp) : CommonEventSubscriber(sp) 25 {} 26 ~TestSubscriber()27 ~TestSubscriber() 28 {} 29 OnReceiveEvent(const CommonEventData & data)30 void OnReceiveEvent(const CommonEventData &data) override 31 {} 32 }; 33 } // namespace EventFwk 34 35 constexpr size_t U32_AT_SIZE = 4; DoSomethingInterestingWithMyAPI(FuzzData fuzzData)36bool DoSomethingInterestingWithMyAPI(FuzzData fuzzData) 37 { 38 std::string stringData = fuzzData.GenerateRandomString(); 39 40 EventFwk::MatchingSkills matchingSkills; 41 matchingSkills.AddEvent(stringData); 42 matchingSkills.AddEntity(stringData); 43 matchingSkills.AddScheme(stringData); 44 45 EventFwk::CommonEventSubscribeInfo subscribeInfo(matchingSkills); 46 int32_t priority = fuzzData.GenerateRandomInt32(); 47 subscribeInfo.SetPriority(priority); 48 subscribeInfo.SetPermission(stringData); 49 subscribeInfo.SetDeviceId(stringData); 50 51 std::shared_ptr<EventFwk::TestSubscriber> subscriber = 52 std::make_shared<EventFwk::TestSubscriber>(subscribeInfo); 53 return EventFwk::CommonEventManager::UnSubscribeCommonEvent(subscriber); 54 } 55 } // namespace OHOS 56 57 /* Fuzzer entry point */ LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)58extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) 59 { 60 /* Run your code on data */ 61 if (data == nullptr) { 62 return 0; 63 } 64 65 if (size < OHOS::U32_AT_SIZE) { 66 return 0; 67 } 68 OHOS::FuzzData fuzzData(data, size); 69 OHOS::DoSomethingInterestingWithMyAPI(fuzzData); 70 return 0; 71 } 72