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 "biginttouint64_fuzzer.h"
17#include "ecmascript/napi/include/jsnapi.h"
18#include "ecmascript/log_wrapper.h"
19#include "ecmascript/base/string_helper.h"
20
21using namespace panda;
22using namespace panda::ecmascript;
23
24namespace OHOS {
25    void BigIntToUint64FuzzTest(const uint8_t* data, size_t size)
26    {
27        RuntimeOption option;
28        option.SetLogLevel(RuntimeOption::LOG_LEVEL::ERROR);
29        EcmaVM *vm = JSNApi::CreateJSVM(option);
30        if (size <= 0) {
31            return;
32        }
33        uint64_t input = 0;
34        size_t maxByteLen = 8;
35        if (size > maxByteLen) {
36            size = maxByteLen;
37        }
38        if (memcpy_s(&input, maxByteLen, data, size) != EOK) {
39            std::cout << "memcpy_s failed!";
40            UNREACHABLE();
41        }
42        Local<BigIntRef> bigint = BigIntRef::New(vm, input);
43
44        uint64_t cValue = 0;
45        bool lossless = false;
46        bigint->BigIntToUint64(vm, &cValue, &lossless);
47        JSNApi::DestroyJSVM(vm);
48    }
49}
50
51// Fuzzer entry point.
52extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
53{
54    // Run your code on data.
55    OHOS::BigIntToUint64FuzzTest(data, size);
56    return 0;
57}