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 "publishcommonevent_fuzzer.h"
17 #include "securec.h"
18 #include "common_event_manager.h"
19 #include "common_event_support.h"
20
21 constexpr int8_t FUZZ_DATA_LEN = 3;
22
23 namespace OHOS {
24 constexpr size_t U32_AT_SIZE = 4;
DoSomethingInterestingWithMyAPI(const char * data,size_t size)25 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
26 {
27 AAFwk::Want want;
28 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_TEST_ACTION1);
29 EventFwk::CommonEventData commonEventData;
30 commonEventData.SetWant(want);
31 int32_t code = U32_AT(reinterpret_cast<const uint8_t*>(data));
32 commonEventData.SetCode(code);
33 std::string stringData(data);
34 commonEventData.SetData(stringData);
35
36 EventFwk::CommonEventPublishInfo commonEventPublishInfo;
37 std::vector<std::string> permissions;
38 permissions.emplace_back(stringData);
39 commonEventPublishInfo.SetSubscriberPermissions(permissions);
40
41 std::shared_ptr<EventFwk::CommonEventSubscriber> subscriber = nullptr;
42
43 // test pubilshCommonEvent function and two paramter
44 EventFwk::CommonEventManager::PublishCommonEvent(commonEventData, commonEventPublishInfo);
45
46 if (size < FUZZ_DATA_LEN) {
47 return EventFwk::CommonEventManager::PublishCommonEvent(
48 commonEventData, commonEventPublishInfo, subscriber);
49 } else {
50 int32_t uid = U32_AT(reinterpret_cast<const uint8_t*>(data));
51 return EventFwk::CommonEventManager::PublishCommonEvent(
52 commonEventData, commonEventPublishInfo, subscriber, uid, code);
53 }
54 }
55 }
56
57 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)58 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
59 {
60 /* Run your code on data */
61 if (data == nullptr) {
62 return 0;
63 }
64
65 if (size < OHOS::U32_AT_SIZE) {
66 return 0;
67 }
68
69 char* ch = (char *)malloc(size + 1);
70 if (ch == nullptr) {
71 return 0;
72 }
73
74 (void)memset_s(ch, size + 1, 0x00, size + 1);
75 if (memcpy_s(ch, size, data, size) != EOK) {
76 free(ch);
77 ch = nullptr;
78 return 0;
79 }
80
81 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
82 free(ch);
83 ch = nullptr;
84 return 0;
85 }
86