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 "setlocalname_fuzzer.h"
17 #include "bluetooth_host.h"
18 #include "bluetooth_log.h"
19 #include "securec.h"
20
21 using namespace std;
22 using namespace OHOS::Bluetooth;
23 const size_t FUZZ_MAX_NAME_LEN = 10;
24 namespace OHOS {
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)25 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
26 {
27 HILOGI("start");
28 if ((data == nullptr) || (size < sizeof(int32_t))) {
29 return false;
30 }
31 bool result = false;
32 int len = (size > FUZZ_MAX_NAME_LEN) ? FUZZ_MAX_NAME_LEN : size;
33 std::string localName(reinterpret_cast<const char*>(data), len);
34 for (int i = 0; i < len; i++) {
35 char c = localName[i];
36 bool ret = (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');
37 if (!ret) {
38 localName[i] = 'a';
39 }
40 }
41 BluetoothHost *host = &BluetoothHost::GetDefaultHost();
42 HILOGI("name:%{public}s", localName.c_str());
43 result = host->SetLocalName(localName);
44 HILOGI("result:%{public}d", result);
45 return result;
46 }
47 }
48
49 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)50 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
51 {
52 /* Run your code on data */
53 OHOS::DoSomethingInterestingWithMyAPI(data, size);
54 return 0;
55 }
56
57