1 /*
2 * Copyright (c) 2023 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 "playvibratorcustom_fuzzer.h"
17
18 #include "securec.h"
19
20 #include "vibrator_agent.h"
21
22 namespace OHOS {
23 namespace Sensors {
24 namespace {
25 constexpr size_t DATA_MIN_SIZE = 20;
26 } // namespace
27
28 template<class T>
GetObject(const uint8_t * data,size_t size,T & object)29 size_t GetObject(const uint8_t *data, size_t size, T &object)
30 {
31 size_t objectSize = sizeof(object);
32 if (objectSize > size) {
33 return 0;
34 }
35 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
36 if (ret != EOK) {
37 return 0;
38 }
39 return objectSize;
40 }
41
PlayVibratorCustomFuzzTest(const uint8_t * data,size_t size)42 void PlayVibratorCustomFuzzTest(const uint8_t *data, size_t size)
43 {
44 if (data == nullptr || size < DATA_MIN_SIZE) {
45 return;
46 }
47 size_t startPos = 0;
48 int32_t fd { 0 };
49 startPos += GetObject<int32_t>(data + startPos, size - startPos, fd);
50 int64_t offset { 0 };
51 startPos += GetObject<int64_t>(data + startPos, size - startPos, offset);
52 int64_t length { 0 };
53 GetObject<int64_t>(data + startPos, size - startPos, length);
54 OHOS::Sensors::PlayVibratorCustom(fd, offset, length);
55 }
56 } // namespace Sensors
57 } // namespace OHOS
58
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)59 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
60 {
61 OHOS::Sensors::PlayVibratorCustomFuzzTest(data, size);
62 return 0;
63 }