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 "publishcommoneventasuser_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 = 4;
22
23 namespace OHOS {
24 constexpr size_t U32_AT_SIZE = 4;
25
DoSomethingInterestingWithMyAPI(const char * data,size_t size)26 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
27 {
28 AAFwk::Want want;
29 want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_TEST_ACTION1);
30 EventFwk::CommonEventData commonEventData;
31 commonEventData.SetWant(want);
32 int32_t code = U32_AT(reinterpret_cast<const uint8_t*>(data));
33 commonEventData.SetCode(code);
34 std::string stringData(data);
35 commonEventData.SetData(stringData);
36
37 EventFwk::CommonEventPublishInfo commonEventPublishInfo;
38 std::vector<std::string> permissions;
39 permissions.emplace_back(stringData);
40 commonEventPublishInfo.SetSubscriberPermissions(permissions);
41
42 std::shared_ptr<EventFwk::CommonEventSubscriber> subscriber = nullptr;
43
44 int32_t userId = code + 100;
45
46 // test PublishCommonEventAsUser and two paramter
47 EventFwk::CommonEventManager::PublishCommonEventAsUser(commonEventData, userId);
48
49 if (size < FUZZ_DATA_LEN) {
50 return EventFwk::CommonEventManager::PublishCommonEventAsUser(
51 commonEventData, commonEventPublishInfo, subscriber, userId);
52 } else {
53 int32_t uid = U32_AT(reinterpret_cast<const uint8_t*>(data));
54 return EventFwk::CommonEventManager::PublishCommonEventAsUser(
55 commonEventData, commonEventPublishInfo, subscriber, uid, code, userId);
56 }
57 }
58 }
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
62 {
63 /* Run your code on data */
64 if (data == nullptr) {
65 return 0;
66 }
67
68 if (size < OHOS::U32_AT_SIZE) {
69 return 0;
70 }
71
72 char* ch = (char *)malloc(size + 1);
73 if (ch == nullptr) {
74 return 0;
75 }
76
77 (void)memset_s(ch, size + 1, 0x00, size + 1);
78 if (memcpy_s(ch, size, data, size) != EOK) {
79 free(ch);
80 ch = nullptr;
81 return 0;
82 }
83
84 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
85 free(ch);
86 ch = nullptr;
87 return 0;
88 }
89