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 "wantparamsfirst_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <iostream>
21
22 #define private public
23 #include "want_params.h"
24 #undef private
25 #include "string_wrapper.h"
26 #include "byte_wrapper.h"
27 #include "want_params_wrapper.h"
28 #include "securec.h"
29
30 using namespace OHOS::AAFwk;
31
32 namespace OHOS {
33 namespace {
34 constexpr size_t U32_AT_SIZE = 4;
35 }
GetU32Data(const char * ptr)36 uint32_t GetU32Data(const char* ptr)
37 {
38 // convert fuzz input data to an integer
39 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
40 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)41 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
42 {
43 UnsupportedData other;
44 std::shared_ptr<UnsupportedData> unsupportedData = std::make_shared<UnsupportedData>(other);
45 WantParams wantOther;
46 std::shared_ptr<WantParams> wantParams = std::make_shared<WantParams>(wantOther);
47 std::string key(data, size);
48 int8_t byteValue = static_cast<int8_t>(GetU32Data(data));
49 sptr<IInterface> stringIt = String::Box(key);
50 wantParams->SetParam(key, stringIt);
51 wantParams->GetWantParams(key);
52 wantParams->GetStringParam(key);
53 int defaultValue = static_cast<int>(GetU32Data(data));
54 wantParams->GetIntParam(key, defaultValue);
55 wantParams->KeySet();
56 wantParams->HasParam(key);
57 wantParams->IsEmpty();
58 int level = static_cast<int32_t>(GetU32Data(data));
59 wantParams->DumpInfo(level);
60 Parcel parcel;
61 sptr<IInterface> byteIt = Byte::Box(byteValue);
62 int depth = static_cast<int>(GetU32Data(data));
63 wantParams->WriteToParcelWantParams(parcel, byteIt, depth);
64 wantParams->WriteToParcelByte(parcel, byteIt);
65 return true;
66 }
67 }
68
69 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)70 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
71 {
72 /* Run your code on data */
73 if (data == nullptr) {
74 std::cout << "invalid data" << std::endl;
75 return 0;
76 }
77
78 /* Validate the length of size */
79 if (size < OHOS::U32_AT_SIZE) {
80 return 0;
81 }
82
83 char* ch = (char *)malloc(size + 1);
84 if (ch == nullptr) {
85 std::cout << "malloc failed." << std::endl;
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 std::cout << "copy failed." << std::endl;
92 free(ch);
93 ch = nullptr;
94 return 0;
95 }
96
97 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
98 free(ch);
99 ch = nullptr;
100 return 0;
101 }
102