1 /*
2 * Copyright (c) 2025 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 "formprovidertaskmgr_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "form_provider/form_provider_task_mgr.h"
23 #define protected public
24
25 #undef private
26 #undef protected
27 #include "securec.h"
28
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 constexpr size_t U32_AT_SIZE = 4;
GetU32Data(const char * ptr)33 uint32_t GetU32Data(const char* ptr)
34 {
35 // convert fuzz input data to an integer
36 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
37 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)38 void DoSomethingInterestingWithMyAPI(const char* data, size_t size)
39 {
40 FormProviderTaskMgr formTaskMgr;
41 int64_t formId = static_cast<int64_t>(GetU32Data(data));
42 Want want;
43 sptr<IRemoteObject> remoteObject = nullptr;
44 formTaskMgr.PostAcquireTask(formId, want, remoteObject);
45 formTaskMgr.PostRefreshTask(formId, want, remoteObject);
46 formTaskMgr.PostDeleteTask(formId, want, remoteObject);
47 std::set<int64_t> formIds;
48 formIds.insert(formId);
49 formTaskMgr.PostProviderBatchDeleteTask(formIds, want, remoteObject);
50 formTaskMgr.PostCastTempTask(formId, want, remoteObject);
51 Want wantArg;
52 std::string provider(data, size);
53 formTaskMgr.PostAcquireStateTask(wantArg, provider, want, remoteObject);
54 formTaskMgr.PostAcquireDataTask(formId, want, remoteObject);
55 std::string message(data, size);
56 formTaskMgr.PostFormEventTask(formId, message, want, remoteObject);
57 std::vector<int64_t> formEvent;
58 formEvent.emplace_back(formId);
59 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
60 formTaskMgr.PostEventNotifyTask(formEvent, formVisibleType, want, remoteObject);
61 formTaskMgr.AcquireProviderFormInfo(formId, want, remoteObject);
62 formTaskMgr.NotifyFormUpdate(formId, want, remoteObject);
63 formTaskMgr.NotifyFormDelete(formId, want, remoteObject);
64 formTaskMgr.ProviderBatchDelete(formIds, want, remoteObject);
65 formTaskMgr.NotifyCastTemp(formId, want, remoteObject);
66 formTaskMgr.AcquireState(wantArg, provider, want, remoteObject);
67 formTaskMgr.AcquireFormData(formId, want, remoteObject);
68 formTaskMgr.FireFormEvent(formId, message, want, remoteObject);
69 formTaskMgr.EventNotify(formEvent, formVisibleType, want, remoteObject);
70 formTaskMgr.RemoveConnection(formId);
71 }
72 }
73
74 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)75 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
76 {
77 /* Run your code on data */
78 if (data == nullptr) {
79 return 0;
80 }
81
82 if (size < OHOS::U32_AT_SIZE) {
83 return 0;
84 }
85
86 char* ch = static_cast<char*>(malloc(size + 1));
87 if (ch == nullptr) {
88 return 0;
89 }
90
91 (void)memset_s(ch, size + 1, 0x00, size + 1);
92 if (memcpy_s(ch, size + 1, data, size) != EOK) {
93 free(ch);
94 ch = nullptr;
95 return 0;
96 }
97
98 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
99 free(ch);
100 ch = nullptr;
101 return 0;
102 }
103
104