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 "streamdepacketizer_fuzzer.h"
17 #include "stream_depacketizer.h"
18 #include "common_inner.h"
19 #include "i_stream.h"
20 #include "stream_common.h"
21 #include "softbus_adapter_crypto.h"
22 #include <securec.h>
23 #include <cstddef>
24 #include <cstdint>
25
26 using namespace std;
27
28 namespace OHOS {
DepacketizeHeaderTest(const uint8_t * data,size_t size)29 void DepacketizeHeaderTest(const uint8_t* data, size_t size)
30 {
31 if ((data == nullptr) || (size < Communication::SoftBus::MAX_STREAM_LEN - OVERHEAD_LEN)) {
32 return;
33 }
34 char tmp[Communication::SoftBus::MAX_STREAM_LEN - OVERHEAD_LEN + 1] = {0};
35 if (memcpy_s(tmp, sizeof(tmp) - 1, data, sizeof(tmp) - 1) != EOK) {
36 return;
37 }
38
39 Communication::SoftBus::StreamDepacketizer decode(1);
40 decode.DepacketizeHeader((const char *)tmp);
41 }
42
DepacketizeBufferTest(const uint8_t * data,size_t size)43 void DepacketizeBufferTest(const uint8_t* data, size_t size)
44 {
45 if ((data == nullptr) || (size < Communication::SoftBus::MAX_STREAM_LEN - OVERHEAD_LEN)) {
46 return;
47 }
48 char tmp[Communication::SoftBus::MAX_STREAM_LEN - OVERHEAD_LEN + 1] = {0};
49 if (memcpy_s(tmp, sizeof(tmp) - 1, data, sizeof(tmp) - 1) != EOK) {
50 return;
51 }
52
53 Communication::SoftBus::StreamDepacketizer decode(1);
54 decode.DepacketizeBuffer((char *)tmp, sizeof(tmp));
55 }
56 } // namespace OHOS
57
58 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)59 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
60 {
61 /* Run your code on data */
62 OHOS::DepacketizeHeaderTest(data, size);
63 OHOS::DepacketizeBufferTest(data, size);
64 return 0;
65 }
66