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 "formtimermgrannex_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_info_mgr.h"
24 #include "form_timer_mgr.h"
25 #undef private
26 #undef protected
27 #include "securec.h"
28
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 constexpr size_t FOO_MAX_LEN = 1024;
33 constexpr size_t U32_AT_SIZE = 4;
GetU32Data(const char * ptr)34 uint32_t GetU32Data(const char* ptr)
35 {
36 // convert fuzz input data to an integer
37 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
38 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)39 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
40 {
41 FormTimerMgr formTimerMgr;
42 formTimerMgr.ClearLimiterTimerResource();
43 formTimerMgr.GetLimiterWantAgent();
44 formTimerMgr.UpdateDynamicAlarm();
45 int64_t nextTime = static_cast<int64_t>(GetU32Data(data));
46 int32_t userId = static_cast<int32_t>(GetU32Data(data));
47 formTimerMgr.GetDynamicWantAgent(nextTime, userId);
48 formTimerMgr.ClearDynamicResource();
49 long nowTime = static_cast<long>(GetU32Data(data));
50 UpdateAtItem updateAtItem;
51 formTimerMgr.FindNextAtTimerItem(nowTime, updateAtItem);
52 formTimerMgr.ClearIntervalTimer();
53 formTimerMgr.CreatTaskThreadExecutor();
54 FormTimer timerTask;
55 formTimerMgr.ExecTimerTask(timerTask);
56 formTimerMgr.Init();
57 FormInfoHelper formInfoHelper;
58 std::string bundleName(data, size);
59 FormInfo formInfo;
60 std::vector<FormInfo> formInfos;
61 formInfos.emplace_back(formInfo);
62 formInfoHelper.LoadFormConfigInfoByBundleName(bundleName, formInfos, userId);
63 return formTimerMgr.IsActiveUser(userId);
64 }
65 }
66
67 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
69 {
70 /* Run your code on data */
71 if (data == nullptr) {
72 return 0;
73 }
74
75 if (size < OHOS::U32_AT_SIZE) {
76 return 0;
77 }
78
79 /* Validate the length of size */
80 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
81 return 0;
82 }
83
84 char* ch = (char *)malloc(size + 1);
85 if (ch == nullptr) {
86 return 0;
87 }
88
89 (void)memset_s(ch, size + 1, 0x00, size + 1);
90 if (memcpy_s(ch, size, data, size) != EOK) {
91 free(ch);
92 ch = nullptr;
93 return 0;
94 }
95
96 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
97 free(ch);
98 ch = nullptr;
99 return 0;
100 }
101
102