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 "hookmgradd_fuzzer.h"
17 #include <string>
18 #include "hookmgr.h"
19
TestHook(const HOOK_INFO * hookInfo,void * executionContext)20 static int TestHook(const HOOK_INFO *hookInfo, void *executionContext)
21 {
22 printf("Test HookMgrAdd\n");
23 return 0;
24 }
25
26 namespace OHOS {
FuzzHookMgrAdd(const uint8_t * data,size_t size)27 bool FuzzHookMgrAdd(const uint8_t* data, size_t size)
28 {
29 if ((data == nullptr) || (size <= sizeof(int))) {
30 return false;
31 }
32 bool result = false;
33 int offset = 0;
34 int stage = *data;
35 offset += sizeof(int);
36 int prio = *(data + offset);
37
38 if (!HookMgrAdd(NULL, stage, prio, TestHook)) {
39 result = true;
40 }
41 return result;
42 }
43 }
44
45 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)46 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
47 {
48 /* Run your code on data */
49 OHOS::FuzzHookMgrAdd(data, size);
50 return 0;
51 }