1 /*
2 * Copyright (c) 2023 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 "getdisplaybindinfo_fuzzer.h"
17
18 #include "securec.h"
19
20 #include "input_manager.h"
21 #include "mmi_log.h"
22
23 namespace OHOS {
24 namespace MMI {
25 namespace {
26 constexpr OHOS::HiviewDFX::HiLogLabel LABEL = { LOG_CORE, MMI_LOG_DOMAIN, "GetDisplayBindInfoFuzzTest" };
27 constexpr int32_t DEFAULT_PREKEY_COUNT = 5;
28 } // namespace
29
30 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)31 size_t GetObject(T &object, const uint8_t *data, size_t size)
32 {
33 size_t objectSize = sizeof(object);
34 if (objectSize > size) {
35 return 0;
36 }
37 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
38 if (ret != EOK) {
39 return 0;
40 }
41 return objectSize;
42 }
43
GetString(const uint8_t * data,size_t size,char * object,size_t objectSize)44 size_t GetString(const uint8_t *data, size_t size, char *object, size_t objectSize)
45 {
46 if (objectSize > size) {
47 return 0;
48 }
49 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
50 if (ret != EOK) {
51 return 0;
52 }
53 return objectSize;
54 }
55
GetDisplayBindInfoFuzzTest(const uint8_t * data,size_t size)56 void GetDisplayBindInfoFuzzTest(const uint8_t* data, size_t size)
57 {
58 std::vector<DisplayBindInfo> displayBindInfos;
59 size_t startPos = 0;
60 size_t stringSize = 4;
61 for (int32_t i = 0; i < DEFAULT_PREKEY_COUNT; i++) {
62 DisplayBindInfo displayBindInfo;
63 int32_t inputDeviceId;
64 startPos += GetObject<int32_t>(inputDeviceId, data + startPos, size - startPos);
65 displayBindInfo.inputDeviceId = inputDeviceId;
66 int32_t displayId;
67 startPos += GetObject<int32_t>(displayId, data + startPos, size - startPos);
68 displayBindInfo.displayId = displayId;
69 char inputDeviceName[] = "inputDeviceName";
70 startPos += GetString(data + startPos, size - startPos, inputDeviceName, stringSize);
71 displayBindInfo.inputDeviceName = inputDeviceName;
72 char displayName[] = "displayName";
73 startPos += GetString(data + startPos, size - startPos, displayName, stringSize);
74 displayBindInfo.displayName = displayName;
75 displayBindInfos.push_back(displayBindInfo);
76 }
77 MMI_HILOGD("GetDisplayBindInfo start");
78 InputManager::GetInstance()->GetDisplayBindInfo(displayBindInfos);
79 }
80 } // MMI
81 } // OHOS
82
83 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)84 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
85 {
86 /* Run your code on data */
87 OHOS::MMI::GetDisplayBindInfoFuzzTest(data, size);
88 return 0;
89 }
90
91