1 /*
2 * Copyright (c) 2023 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 "softbussocketrecv_fuzzer.h"
17 #include "softbus_adapter_socket.h"
18 #include "softbus_adapter_define.h"
19 #include <cstddef>
20 #include <cstdint>
21
22 namespace OHOS {
23 const int PROTOCOL_MAXLEN = 100;
24
25 struct SocketProtocol {
26 unsigned int cmd;
27 char data[PROTOCOL_MAXLEN];
28 };
29
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)30 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
31 {
32 if ((data == nullptr) || (size < sizeof(int32_t))) {
33 return false;
34 }
35
36 int32_t socketFd = *(reinterpret_cast<const int32_t*>(data));
37 struct SocketProtocol buf = {0};
38 uint32_t len = *(reinterpret_cast<const uint32_t*>(data));
39 int32_t flags = *(reinterpret_cast<const int32_t*>(data));
40
41 SoftBusSocketRecv(socketFd, &buf, len, flags);
42 return true;
43 }
44 }
45
46 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)47 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
48 {
49 /* Run your code on data */
50 OHOS::DoSomethingInterestingWithMyAPI(data, size);
51 return 0;
52 }