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 "inner_event.h"
17 #include "innerevent_fuzzer.h"
18 #include "securec.h"
19
20 namespace OHOS {
21 namespace {
22 constexpr size_t U32_AT_SIZE = 4;
23 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)24 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
25 {
26 uint32_t innerEventId = *data;
27 auto event = AppExecFwk::InnerEvent::Get(innerEventId);
28 event->Dump();
29 int64_t param = U32_AT(reinterpret_cast<const uint8_t*>(data));
30 event->Get();
31 event->Get(innerEventId, param);
32 return true;
33 }
34 }
35
36 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)37 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
38 {
39 /* Run your code on data */
40 if (data == nullptr) {
41 return 0;
42 }
43
44 if (size < OHOS::U32_AT_SIZE) {
45 return 0;
46 }
47
48 char* ch = (char *)malloc(size + 1);
49 if (ch == nullptr) {
50 return 0;
51 }
52
53 (void)memset_s(ch, size + 1, 0x00, size + 1);
54 if (memcpy_s(ch, size, data, size) != EOK) {
55 free(ch);
56 ch = nullptr;
57 return 0;
58 }
59
60 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
61 free(ch);
62 ch = nullptr;
63 return 0;
64 }
65