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 "arraywrapperthird_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 "securec.h"
26 #include "string_wrapper.h"
27
28 using namespace OHOS::AAFwk;
29
30 namespace OHOS {
31 namespace {
32 constexpr size_t U32_AT_SIZE = 4;
33 constexpr char LEFT_BRACE_STRING = '{';
34 }
GetU32Data(const char * ptr)35 uint32_t GetU32Data(const char* ptr)
36 {
37 // convert fuzz input data to an integer
38 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
39 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)40 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
41 {
42 long longSize = 0;
43 InterfaceID id;
44 std::shared_ptr<Array> array = std::make_shared<Array>(longSize, id);
45 std::string values(data, size);
46 array->ParseDouble(values, longSize);
47 array->ParseChar(values, longSize);
48 array->ParseArray(values, longSize);
49 array->ParseWantParams(values, longSize);
50 IArray* arrayptr = nullptr;
51 std::function<sptr<IInterface>(std::string)> func;
52 array->ParseElement(arrayptr, func, values, longSize);
53 std::string errorString(data, longSize);
54 array->Parse(errorString);
55 errorString.insert(errorString.begin(), String::SIGNATURE);
56 array->Parse(errorString);
57 errorString.insert(errorString.begin(), LEFT_BRACE_STRING);
58 array->Parse(errorString);
59 long lengthSize = (long)(size);
60 array->ParseElement(arrayptr, func, values, lengthSize);
61 std::shared_ptr<Array> otherArray = std::make_shared<Array>(longSize, id);
62 sptr<IInterface> stringValue = String::Box(values);
63 for (size_t i = 0; i < longSize; i++) {
64 otherArray->Set(i, stringValue);
65 }
66 array->IsStringArray(otherArray.get());
67 std::function<void(IInterface*)> function;
68 array->ForEach(otherArray.get(), function);
69 return true;
70 }
71 }
72
73 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)74 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
75 {
76 /* Run your code on data */
77 if (data == nullptr) {
78 std::cout << "invalid data" << std::endl;
79 return 0;
80 }
81
82 /* Validate the length of size */
83 if (size < OHOS::U32_AT_SIZE) {
84 return 0;
85 }
86
87 char* ch = (char *)malloc(size + 1);
88 if (ch == nullptr) {
89 std::cout << "malloc failed." << std::endl;
90 return 0;
91 }
92
93 (void)memset_s(ch, size + 1, 0x00, size + 1);
94 if (memcpy_s(ch, size, data, size) != EOK) {
95 std::cout << "copy failed." << std::endl;
96 free(ch);
97 ch = nullptr;
98 return 0;
99 }
100
101 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
102 free(ch);
103 ch = nullptr;
104 return 0;
105 }
106