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 "startvibratorenhanced_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 U32_AT_SIZE = 28;
29 constexpr char END_CHAR = '\0';
30 constexpr size_t LEN = 20;
31 } // namespace
32
33 template<class T>
GetObject(const uint8_t * data,size_t size,T & object)34 size_t GetObject(const uint8_t *data, size_t size, T &object)
35 {
36 size_t objectSize = sizeof(object);
37 if (objectSize > size) {
38 return 0;
39 }
40 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
41 if (ret != EOK) {
42 return 0;
43 }
44 return objectSize;
45 }
46
StartVibratorEnhancedFuzzTest(const uint8_t * data,size_t size)47 bool StartVibratorEnhancedFuzzTest(const uint8_t *data, size_t size)
48 {
49 if (data == nullptr || size < U32_AT_SIZE) {
50 return false;
51 }
52 VibratorIdentifier identifier;
53 size_t startPos = 0;
54 char effectId[LEN + 1];
55 effectId[LEN] = END_CHAR;
56 startPos += GetObject<int32_t>(data + startPos, size - startPos, identifier.deviceId);
57 startPos += GetObject<int32_t>(data + startPos, size - startPos, identifier.vibratorId);
58 for (size_t i = 0; i < LEN; ++i) {
59 startPos += GetObject<char>(data + startPos, size - startPos, effectId[i]);
60 }
61
62 int32_t ret = OHOS::Sensors::StartVibratorEnhanced(identifier, effectId);
63 int32_t ret2 = std::strcmp(effectId, "haptic.clock.timer");
64 if ((ret2 != 0 && ret == 0) || (ret2 == 0 && ret != 0)) {
65 return false;
66 }
67 return true;
68 }
69 } // namespace OHOS
70
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)71 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
72 {
73 OHOS::StartVibratorEnhancedFuzzTest(data, size);
74 return 0;
75 }