1 /*
2 * Copyright (c) 2024 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 "accessibleabilitymanagerstateobserverstub_fuzzer.h"
17 #include "accessible_ability_manager_state_observer_stub.h"
18 #include "securec.h"
19
20 namespace OHOS {
21 namespace Accessibility {
22 namespace {
23 constexpr size_t DATA_MIN_SIZE = 100;
24 constexpr char END_CHAR = '\0';
25 constexpr size_t LEN = 10;
26 }
27
28 class ManagerStateObserverImplFuzzTest : public AccessibleAbilityManagerStateObserverStub {
29 public:
30 ManagerStateObserverImplFuzzTest() = default;
31 ~ManagerStateObserverImplFuzzTest() = default;
32
OnStateChanged(const uint32_t stateType)33 void OnStateChanged(const uint32_t stateType) override {}
34 };
35
36 template<class T>
GetData(T & code,const uint8_t * databuffer,size_t size)37 size_t GetData(T &code, const uint8_t *databuffer, size_t size)
38 {
39 size_t objectSize = sizeof(code);
40 if (objectSize > size) {
41 return 0;
42 }
43 return memcpy_s(&code, objectSize, databuffer, objectSize) == EOK ? objectSize : 0;
44 }
45
StateObserverOnRemoteRequestFuzzTest(const uint8_t * databuffer,size_t size)46 bool StateObserverOnRemoteRequestFuzzTest(const uint8_t* databuffer, size_t size)
47 {
48 if (databuffer == nullptr || size < DATA_MIN_SIZE) {
49 return false;
50 }
51
52 size_t position = 0;
53 uint32_t code = 0;
54 MessageParcel stateObserverData;
55 MessageParcel stateObserverReply;
56 MessageOption option(MessageOption::TF_SYNC);
57
58 GetData<uint32_t>(code, &databuffer[position], size - position);
59 ManagerStateObserverImplFuzzTest callBack;
60 stateObserverData.WriteInterfaceToken(ManagerStateObserverImplFuzzTest::GetDescriptor());
61 callBack.OnRemoteRequest(code, stateObserverData, stateObserverReply, option);
62 return true;
63 }
64 } // namespace Accessibility
65 } // namespace OHOS
66
67 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
69 {
70 /* Run your code on data */
71 OHOS::Accessibility::StateObserverOnRemoteRequestFuzzTest(data, size);
72 return 0;
73 }