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
16 #include "touchpadtapswitch_fuzzer.h"
17
18 #include "securec.h"
19 #include "input_manager.h"
20 #include "mmi_log.h"
21
22 namespace OHOS {
23 namespace MMI {
24
25 template <class T>
GetObject(T & object,const uint8_t * data,size_t size)26 size_t GetObject(T &object, const uint8_t *data, size_t size)
27 {
28 size_t objectSize = sizeof(object);
29 if (objectSize > size) {
30 return 0;
31 }
32 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
33 if (ret != EOK) {
34 return 0;
35 }
36 return objectSize;
37 }
38
TouchpadTapSwitchFuzzTest(const uint8_t * data,size_t size)39 void TouchpadTapSwitchFuzzTest(const uint8_t *data, size_t size)
40 {
41 int32_t rnd1 = 0;
42 (void)GetObject<int32_t>(rnd1, data, size);
43 bool enable1 = (rnd1 & 1) == 0;
44 (void)InputManager::GetInstance()->SetTouchpadTapSwitch(enable1);
45 bool state1 = false;
46 (void)InputManager::GetInstance()->GetTouchpadTapSwitch(state1);
47 int32_t rnd2 = 0;
48 if (size > sizeof(int32_t)) {
49 (void)GetObject<int32_t>(rnd2, data + sizeof(int32_t), size - sizeof(int32_t));
50 bool enable2 = (rnd2 & 1) != 0;
51 (void)InputManager::GetInstance()->SetTouchpadTapSwitch(enable2);
52 bool state2 = false;
53 (void)InputManager::GetInstance()->GetTouchpadTapSwitch(state2);
54 }
55 }
56
57 } // namespace MMI
58 } // namespace OHOS
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
62 {
63 OHOS::MMI::TouchpadTapSwitchFuzzTest(data, size);
64 return 0;
65 }