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 "native_implement_eventhandler.h"
17 #include "eventhandlerannex_fuzzer.h"
18 #include "file_descriptor_listener.h"
19 #include "securec.h"
20
21 namespace OHOS {
22 namespace {
23 constexpr size_t U32_AT_SIZE = 4;
24 constexpr uint8_t ENABLE = 2;
25 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)26 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
27 {
28 bool current = *data % ENABLE;
29 if (current == 1) {
30 EventRunnerNativeImplement eventRunnerNativeImplement(current);
31 eventRunnerNativeImplement.RunEventRunnerNativeObj();
32 eventRunnerNativeImplement.StopEventRunnerNativeObj();
33 eventRunnerNativeImplement.GetEventRunnerNativeObj();
34 return true;
35 } else {
36 return false;
37 }
38 }
39 }
40
41 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)42 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
43 {
44 /* Run your code on data */
45 if (data == nullptr) {
46 return 0;
47 }
48
49 if (size < OHOS::U32_AT_SIZE) {
50 return 0;
51 }
52
53 char* ch = reinterpret_cast<char *>(malloc(size + 1));
54 if (ch == nullptr) {
55 return 0;
56 }
57
58 (void)memset_s(ch, size + 1, 0x00, size + 1);
59 if (memcpy_s(ch, size, data, size) != EOK) {
60 free(ch);
61 ch = nullptr;
62 return 0;
63 }
64
65 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
66 free(ch);
67 ch = nullptr;
68 return 0;
69 }
70