1 /*
2 * Copyright (c) 2024 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 "dialogsessioninfo_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "dialog_session_info.h"
22
23 #include "ability_record.h"
24
25 using namespace OHOS::AAFwk;
26 using namespace OHOS::AppExecFwk;
27
28 namespace OHOS {
29 namespace {
30 constexpr int INPUT_ZERO = 0;
31 constexpr int INPUT_ONE = 1;
32 constexpr int INPUT_TWO = 2;
33 constexpr int INPUT_THREE = 3;
34 constexpr size_t FOO_MAX_LEN = 1024;
35 constexpr size_t U32_AT_SIZE = 4;
36 constexpr size_t OFFSET_ZERO = 24;
37 constexpr size_t OFFSET_ONE = 16;
38 constexpr size_t OFFSET_TWO = 8;
39 constexpr uint8_t ENABLE = 2;
40 } // namespace
41
GetU32Data(const char * ptr)42 uint32_t GetU32Data(const char* ptr)
43 {
44 // convert fuzz input data to an integer
45 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
46 ptr[INPUT_THREE];
47 }
48
DoSomethingInterestingWithMyAPI(const char * data,size_t size)49 bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
50 {
51 Parcel parcel;
52 auto dialogSessionInfo = std::make_shared<DialogSessionInfo>();
53 dialogSessionInfo->ReadFromParcel(parcel);
54 dialogSessionInfo->Marshalling(parcel);
55 return true;
56 }
57 } // namespace OHOS
58
59 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)60 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
61 {
62 /* Run your code on data */
63 if (data == nullptr) {
64 std::cout << "invalid data" << std::endl;
65 return 0;
66 }
67
68 /* Validate the length of size */
69 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
70 return 0;
71 }
72
73 char *ch = static_cast<char*>(malloc(size + 1));
74 if (ch == nullptr) {
75 std::cout << "malloc failed." << std::endl;
76 return 0;
77 }
78
79 (void)memset_s(ch, size + 1, 0x00, size + 1);
80 if (memcpy_s(ch, size + 1, data, size) != EOK) {
81 std::cout << "copy failed." << std::endl;
82 free(ch);
83 ch = nullptr;
84 return 0;
85 }
86
87 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
88 free(ch);
89 ch = nullptr;
90 return 0;
91 }