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