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 "arraywrapperfouth_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <iostream>
21
22 #define private public
23 #include "array_wrapper.h"
24 #undef private
25 #include "long_wrapper.h"
26 #include "securec.h"
27 #include "string_wrapper.h"
28 #include "want_params.h"
29 #include "want_params_wrapper.h"
30
31 using namespace OHOS::AAFwk;
32
33 namespace OHOS {
34 namespace {
35 constexpr size_t U32_AT_SIZE = 4;
36 constexpr size_t MAX_ARRAY_SIZE = 50 * 1024 * 1024;
37 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)38 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
39 {
40 long longSize = (long)(size);
41 InterfaceID id;
42 std::shared_ptr<Array> array = std::make_shared<Array>(longSize, id);
43 std::shared_ptr<Array> otherArray = std::make_shared<Array>(longSize, id);
44 std::string value(data, size);
45 sptr<IInterface> stringValue = String::Box(value);
46 sptr<IInterface> longValue = Long::Box(longSize);
47 for (size_t i = 0; i < longSize; i++) {
48 array->Set(i, stringValue);
49 otherArray->Set(i, longValue);
50 }
51 array->Equals(*otherArray);
52 array->Equals(*array);
53 WantParams otherWantParams;
54 std::shared_ptr<WantParams> wantParams = std::make_shared<WantParams>(otherWantParams);
55 WantParamWrapper wantParamWrapper(*wantParams);
56 array->Equals(wantParamWrapper);
57 long lengthSize = (long)(MAX_ARRAY_SIZE + size);
58 array->size_ = lengthSize;
59 array->GetLength(lengthSize);
60 otherArray->size_ = size;
61 array->Equals(*otherArray);
62 array->size_ = (long)(INT_MAX + size);
63 otherArray->size_ = (long)(INT_MAX + size);
64 array->Equals(*otherArray);
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