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 "pointervisible_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 namespace {
26 constexpr OHOS::HiviewDFX::HiLogLabel LABEL = { LOG_CORE, MMI_LOG_DOMAIN, "PointerVisibleFuzzTest" };
27 } // namespace
28
29 template<class T>
GetObject(const uint8_t * data,size_t size,T & object)30 size_t GetObject(const uint8_t *data, size_t size, T &object)
31 {
32 size_t objectSize = sizeof(object);
33 if (objectSize > size) {
34 return 0;
35 }
36 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
37 if (ret != EOK) {
38 return 0;
39 }
40 return objectSize;
41 }
42
PointerVisibleFuzzTest(const uint8_t * data,size_t size)43 void PointerVisibleFuzzTest(const uint8_t* data, size_t size)
44 {
45 int32_t random = 0;
46 size_t startPos = 0;
47 startPos += GetObject<int32_t>(data + startPos, size - startPos, random);
48 bool visible = (random % 2) ? false : true;
49 if (InputManager::GetInstance()->SetPointerVisible(visible) == RET_ERR) {
50 MMI_HILOGD("Set pointer visible failed");
51 }
52 if (!InputManager::GetInstance()->IsPointerVisible()) {
53 MMI_HILOGD("The pointer is not visible");
54 }
55 }
56 } // namespace MMI
57 } // namespace OHOS
58
59 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)60 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
61 {
62 /* Run your code on data */
63 OHOS::MMI::PointerVisibleFuzzTest(data, size);
64 return 0;
65 }
66