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