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 "backendnativecalling_fuzzer.h"
17#include "ecmascript/napi/include/jsnapi.h"
18#include "agent/debugger_impl.h"
19#include "tooling/backend/js_pt_hooks.h"
20
21using namespace panda;
22using namespace panda::ecmascript;
23using namespace panda::ecmascript::tooling;
24
25#define MAXBYTELEN sizeof(int32_t)
26
27namespace OHOS {
28    void BackendNativeCallingFuzzTest(const uint8_t* data, size_t size)
29    {
30        int32_t input = 0;
31        RuntimeOption option;
32        option.SetLogLevel(RuntimeOption::LOG_LEVEL::ERROR);
33        auto vm = JSNApi::CreateJSVM(option);
34        {
35            if (size <= 0) {
36                return;
37            }
38            if (size > MAXBYTELEN) {
39                size = MAXBYTELEN;
40            }
41            if (memcpy_s(&input, MAXBYTELEN, data, size) != 0) {
42                std::cout << "memcpy_s failed!";
43                UNREACHABLE();
44            }
45            const int32_t MaxMemory = 1073741824;
46            if (input > MaxMemory) {
47                input = MaxMemory;
48            }
49            using JSPtLocation = tooling::JSPtLocation;
50            EntityId methodId(input);
51            uint32_t bytecodeOffset = 0;
52            auto debugger = std::make_unique<DebuggerImpl>(vm, nullptr, nullptr);
53            std::unique_ptr<JSPtHooks> jspthooks = std::make_unique<JSPtHooks>(debugger.get());
54            JSPtLocation ptLocation1(nullptr, methodId, bytecodeOffset);
55            jspthooks->NativeCalling(nullptr);
56        }
57        JSNApi::DestroyJSVM(vm);
58    }
59}
60
61// Fuzzer entry point.
62extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
63{
64    // Run your code on data.
65    OHOS::BackendNativeCallingFuzzTest(data, size);
66    return 0;
67}