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 "abilityappjsheapmeminfo_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #define private public
21 #define protected public
22 #include "app_jsheap_mem_info.h"
23 #undef protected
24 #undef private
25 #include "parcel.h"
26 #include <iostream>
27 #include "securec.h"
28 #include "configuration.h"
29 using namespace OHOS::AppExecFwk;
30 namespace OHOS {
31 namespace {
32 constexpr int INPUT_ZERO = 0;
33 constexpr int INPUT_ONE = 1;
34 constexpr int INPUT_TWO = 2;
35 constexpr int INPUT_THREE = 3;
36 constexpr size_t FOO_MAX_LEN = 1024;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr size_t OFFSET_ZERO = 24;
39 constexpr size_t OFFSET_ONE = 16;
40 constexpr size_t OFFSET_TWO = 8;
41 }
42
GetU32Data(const char* ptr)43 uint32_t GetU32Data(const char* ptr)
44 {
45 // convert fuzz input data to an integer
46 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
47 ptr[INPUT_THREE];
48 }
49
DoSomethingInterestingWithMyAPI(const char* data, size_t size)50 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
51 {
52 JsHeapDumpInfo js;
53 Parcel parcel;
54 js.Marshalling(parcel);
55 return true;
56 }
57 }
58
59 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)60 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
61 {
62 /* Run your code on data */
63 if (data == nullptr) {
64 return 0;
65 }
66
67 /* Validate the length of size */
68 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
69 return 0;
70 }
71
72 char* ch = (char*)malloc(size + 1);
73 if (ch == nullptr) {
74 std::cout << "malloc failed." << std::endl;
75 return 0;
76 }
77
78 (void)memset_s(ch, size + 1, 0x00, size + 1);
79 if (memcpy_s(ch, size, data, size) != EOK) {
80 std::cout << "copy failed." << std::endl;
81 free(ch);
82 ch = nullptr;
83 return 0;
84 }
85
86 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
87 free(ch);
88 ch = nullptr;
89 return 0;
90 }
91
92