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 "setloopcountenhanced_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <cstring>
21 #include <string>
22
23 #include "securec.h"
24 #include "vibrator_agent.h"
25
26 namespace OHOS {
27 namespace {
28 constexpr size_t DATA_MIN_SIZE = 12;
29 } // namespace
30
31 template<class T>
GetObject(const uint8_t * data,size_t size,T & object)32 size_t GetObject(const uint8_t *data, size_t size, T &object)
33 {
34 size_t objectSize = sizeof(object);
35 if (objectSize > size) {
36 return 0;
37 }
38 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
39 if (ret != EOK) {
40 return 0;
41 }
42 return objectSize;
43 }
44
SetLoopCountEnhancedFuzzTest(const uint8_t * data,size_t size)45 bool SetLoopCountEnhancedFuzzTest(const uint8_t *data, size_t size)
46 {
47 if (data == nullptr || size < DATA_MIN_SIZE) {
48 return false;
49 }
50
51 VibratorIdentifier identifier;
52 size_t startPos = 0;
53 int32_t count = 0;
54 startPos += GetObject<int32_t>(data + startPos, size - startPos, identifier.deviceId);
55 startPos += GetObject<int32_t>(data + startPos, size - startPos, identifier.vibratorId);
56 GetObject<int32_t>(data + startPos, size - startPos, count);
57
58 bool ret = OHOS::Sensors::SetLoopCountEnhanced(identifier, count);
59 if ((count <= 0 && ret == true) || ((count > 0 && ret == false))) {
60 return false;
61 }
62 return true;
63 }
64 } // namespace OHOS
65
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)66 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
67 {
68 OHOS::SetLoopCountEnhancedFuzzTest(data, size);
69 return 0;
70 }