1 /*
2 * Copyright (c) 2024 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 "regdatalevelchangecb_fuzzer.h"
17 #include <cstddef>
18 #include <securec.h>
19
20 #include "data_level.h"
21 #include "softbus_access_token_test.h"
22 #include "softbus_bus_center.h"
23 #include "softbus_errcode.h"
24
25 #define MAX_MACLLOC_SIZE (4000 * 1000)
26
27 namespace OHOS {
FuzzOnDataLevelChanged(const char * networkId,const DataLevel dataLevel)28 void FuzzOnDataLevelChanged(const char *networkId, const DataLevel dataLevel)
29 {
30 (void)networkId;
31 (void)dataLevel;
32 }
33
34 IDataLevelCb dataLevelCb = {
35 .onDataLevelChanged = FuzzOnDataLevelChanged,
36 };
37
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)38 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
39 {
40 if (data == nullptr || size == 0 || size > MAX_MACLLOC_SIZE) {
41 return true;
42 }
43
44 char *tmp = reinterpret_cast<char *>(malloc(size));
45 if (tmp == nullptr) {
46 return false;
47 }
48 if (memset_s(tmp, size, '\0', size) != EOK) {
49 free(tmp);
50 return false;
51 }
52 if (memcpy_s(tmp, size, data, size - 1) != EOK) {
53 free(tmp);
54 return false;
55 }
56
57 SetAceessTokenPermission("busCenterTest");
58 RegDataLevelChangeCb(reinterpret_cast<const char *>(tmp), &dataLevelCb);
59 free(tmp);
60 return true;
61 }
62 }
63
64 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)65 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
66 {
67 /* Run your code on data */
68 OHOS::DoSomethingInterestingWithMyAPI(data, size);
69 return 0;
70 }
71
72