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 "wantfourth_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <iostream>
21
22 #define private public
23 #include "want.h"
24 #undef private
25 #include "securec.h"
26
27 using namespace OHOS::AAFwk;
28
29 namespace OHOS {
30 namespace {
31 constexpr size_t U32_AT_SIZE = 4;
32 }
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 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
39 {
40 std::shared_ptr<Want> want = std::make_shared<Want>();
41 std::string key(data, size);
42 sptr<IRemoteObject> remoteObject;
43 want->SetParam(key, remoteObject);
44 want->GetRemoteObject(key);
45 std::vector<bool> boolValue;
46 want->SetParam(key, boolValue);
47 want->GetBoolArrayParam(key);
48 byte byteValue = '\0';
49 want->SetParam(key, byteValue);
50 want->GetByteParam(key, byteValue);
51 std::vector<byte> byteVector;
52 want->SetParam(key, byteVector);
53 want->GetByteArrayParam(key);
54 zchar charValue = U'\0';
55 want->SetParam(key, charValue);
56 want->GetCharParam(key, charValue);
57 Parcel parcel;
58 want->Marshalling(parcel);
59 want->ReadFromParcel(parcel);
60 auto wantPtr = want->Unmarshalling(parcel);
61 if (wantPtr) {
62 delete wantPtr;
63 wantPtr = nullptr;
64 }
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 = reinterpret_cast<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