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 U32_AT_SIZE = 4;
35 constexpr size_t OFFSET_ZERO = 24;
36 constexpr size_t OFFSET_ONE = 16;
37 constexpr size_t OFFSET_TWO = 8;
38 constexpr uint8_t ENABLE = 2;
39 } // namespace
40
GetU32Data(const char * ptr)41 uint32_t GetU32Data(const char* ptr)
42 {
43 // convert fuzz input data to an integer
44 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
45 ptr[INPUT_THREE];
46 }
47
DoSomethingInterestingWithMyAPI(const char * data,size_t size)48 bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
49 {
50 Parcel parcel;
51 auto dialogSessionInfo = std::make_shared<DialogSessionInfo>();
52 dialogSessionInfo->ReadFromParcel(parcel);
53 dialogSessionInfo->Marshalling(parcel);
54 DialogSessionInfo::Unmarshalling(parcel);
55
56 std::string str(data, size);
57 auto dialogAbilityInfo = std::make_shared<DialogAbilityInfo>();
58 dialogAbilityInfo->GetURI();
59
60 return true;
61 }
62 } // namespace OHOS
63
64 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)65 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
66 {
67 /* Run your code on data */
68 if (data == nullptr) {
69 std::cout << "invalid data" << std::endl;
70 return 0;
71 }
72
73 /* Validate the length of size */
74 if (size < OHOS::U32_AT_SIZE) {
75 return 0;
76 }
77
78 char *ch = static_cast<char*>(malloc(size + 1));
79 if (ch == nullptr) {
80 std::cout << "malloc failed." << std::endl;
81 return 0;
82 }
83
84 (void)memset_s(ch, size + 1, 0x00, size + 1);
85 if (memcpy_s(ch, size + 1, data, size) != EOK) {
86 std::cout << "copy failed." << std::endl;
87 free(ch);
88 ch = nullptr;
89 return 0;
90 }
91
92 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
93 free(ch);
94 ch = nullptr;
95 return 0;
96 }