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 "eventserver_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <securec.h>
21
22 #include "decoded/decoded_event.h"
23 #include "event_server.h"
24
25 namespace OHOS {
26 namespace HiviewDFX {
27 namespace {
28 constexpr size_t BUFFER_SIZE = 384 * 1024 + 1;
29 }
SysEventServerFuzzTest(const uint8_t * data,size_t size)30 static void SysEventServerFuzzTest(const uint8_t* data, size_t size)
31 {
32 if (size < static_cast<int32_t>(EventRaw::GetValidDataMinimumByteCount())) {
33 return;
34 }
35 char* buffer = new char[BUFFER_SIZE]();
36 if (memcpy_s(buffer, BUFFER_SIZE, data, size) != EOK) {
37 delete[] buffer;
38 return;
39 }
40 buffer[size] = 0;
41 int32_t dataByteCnt = *(reinterpret_cast<int32_t*>(buffer));
42 if (dataByteCnt != static_cast<int32_t>(size)) {
43 delete[] buffer;
44 return;
45 }
46 EventRaw::DecodedEvent event(reinterpret_cast<uint8_t*>(buffer));
47 (void)event.AsJsonStr();
48 delete[] buffer;
49 }
50 } // namespace HiviewDFX
51 } // namespace OHOS
52
53 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)54 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
55 {
56 /* Run your code on data */
57 OHOS::HiviewDFX::SysEventServerFuzzTest(data, size);
58 return 0;
59 }
60
61