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 #include <securec.h>
22
23 namespace OHOS {
24 const int PROTOCOL_MAXLEN = 100;
25
26 struct SocketProtocol {
27 unsigned int cmd;
28 char data[PROTOCOL_MAXLEN];
29 };
30
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)31 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
32 {
33 if ((data == nullptr) || (size < sizeof(int32_t))) {
34 return false;
35 }
36
37 int32_t socketFd = *(reinterpret_cast<const int32_t*>(data));
38 struct SocketProtocol buf;
39 memset_s(&buf, sizeof(struct SocketProtocol), 0, sizeof(struct SocketProtocol));
40 uint32_t len = *(reinterpret_cast<const uint32_t*>(data));
41 int32_t flags = *(reinterpret_cast<const int32_t*>(data));
42
43 SoftBusSocketRecv(socketFd, &buf, len, flags);
44 return true;
45 }
46 }
47
48 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)49 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
50 {
51 /* Run your code on data */
52 OHOS::DoSomethingInterestingWithMyAPI(data, size);
53 return 0;
54 }