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 "pointerlocation_fuzzer.h"
17
18 #include "securec.h"
19
20 #include "input_manager.h"
21 #include "mmi_log.h"
22
23 namespace OHOS {
24 namespace MMI {
25
26 template <class T>
GetObject(T & object,const uint8_t * data,size_t size)27 size_t GetObject(T &object, const uint8_t *data, size_t size)
28 {
29 size_t objectSize = sizeof(object);
30 if (objectSize > size) {
31 return 0;
32 }
33 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
34 if (ret != EOK) {
35 return 0;
36 }
37 return objectSize;
38 }
39
PointerLocationFuzzTest(const uint8_t * data,size_t size)40 void PointerLocationFuzzTest(const uint8_t *data, size_t size)
41 {
42 int32_t x = 0;
43 int32_t y = 0;
44 int32_t displayId = 0;
45 size_t startPos = 0;
46
47 startPos += GetObject<int32_t>(x, data + startPos, size - startPos);
48 startPos += GetObject<int32_t>(y, data + startPos, size - startPos);
49 GetObject<int32_t>(displayId, data + startPos, size - startPos);
50
51 InputManager::GetInstance()->SetPointerLocation(x, y, displayId);
52
53 int32_t gotDisplayId = -1;
54 double displayX = 0.0;
55 double displayY = 0.0;
56 InputManager::GetInstance()->GetPointerLocation(gotDisplayId, displayX, displayY);
57 }
58
59 } // namespace MMI
60 } // namespace OHOS
61
62 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)63 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
64 {
65 OHOS::MMI::PointerLocationFuzzTest(data, size);
66 return 0;
67 }
68