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 "event_queue.h"
17 #include "event_queue_base.h"
18 #include "eventqueue_fuzzer.h"
19 #include "securec.h"
20
21 namespace OHOS {
22 namespace {
23 constexpr size_t U32_AT_SIZE = 4;
24 }
25
26 class DumperTest : public AppExecFwk::Dumper {
27 public:
28 DumperTest() = default;
~DumperTest()29 virtual ~DumperTest()
30 {};
Dump(const std::string & message)31 void Dump(const std::string &message) override
32 {}
GetTag()33 std::string GetTag() override
34 {
35 return {};
36 }
37 };
38
DoSomethingInterestingWithMyAPI(const char * data,size_t size)39 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
40 {
41 AppExecFwk::InnerEvent::TimePoint nextExpiredTime = AppExecFwk::InnerEvent::TimePoint::max();
42 DumperTest dumper;
43 std::string stringData(data);
44 std::shared_ptr<AppExecFwk::IoWaiter> ioWaiter = nullptr;
45 AppExecFwk::EventQueueBase eventQueue(ioWaiter);
46 eventQueue.GetExpiredEvent(nextExpiredTime);
47 eventQueue.Dump(dumper);
48 eventQueue.DumpQueueInfo(stringData);
49 eventQueue.IsQueueEmpty();
50 return true;
51 }
52 }
53
54 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)55 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
56 {
57 /* Run your code on data */
58 if (data == nullptr) {
59 return 0;
60 }
61
62 if (size < OHOS::U32_AT_SIZE) {
63 return 0;
64 }
65
66 char* ch = (char *)malloc(size + 1);
67 if (ch == nullptr) {
68 return 0;
69 }
70
71 (void)memset_s(ch, size + 1, 0x00, size + 1);
72 if (memcpy_s(ch, size, data, size) != EOK) {
73 free(ch);
74 ch = nullptr;
75 return 0;
76 }
77
78 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
79 free(ch);
80 ch = nullptr;
81 return 0;
82 }
83