1/*
2 * Copyright (c) 2023 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 "runscriptbuffer_fuzzer.h"
17#include "native_engine/impl/ark/ark_native_engine.h"
18#include "securec.h"
19
20using namespace panda;
21using namespace panda::ecmascript;
22using panda::RuntimeOption;
23
24
25#define MAXBYTELEN sizeof(uint32_t)
26
27class Engine {
28public:
29    Engine()
30    {
31        RuntimeOption option;
32        option.SetLogLevel(RuntimeOption::LOG_LEVEL::ERROR);
33        vm_ = JSNApi::CreateJSVM(option);
34        arkNativeEngine_ = new ArkNativeEngine(vm_, nullptr);
35    }
36
37    void RunScriptBuffer(const char* path, std::vector<uint8_t>& buffer, bool isBundle)
38    {
39        arkNativeEngine_->RunScriptBuffer(path, buffer, isBundle);
40    }
41
42    void RunScriptBuffer(const std::string& path, uint8_t* buffer, size_t size, bool isBundle)
43    {
44        arkNativeEngine_->RunScriptBuffer(path, buffer, size, isBundle);
45    }
46
47    ~Engine()
48    {
49        if (arkNativeEngine_ != nullptr) {
50            delete arkNativeEngine_;
51            arkNativeEngine_ = nullptr;
52        }
53        if (vm_ != nullptr) {
54            JSNApi::DestroyJSVM(vm_);
55            vm_ = nullptr;
56        }
57    }
58private:
59    EcmaVM* vm_ {nullptr};
60    ArkNativeEngine* arkNativeEngine_ {nullptr};
61};
62
63static Engine g_nativeEngine;
64
65namespace OHOS {
66    void RunScriptBufferFuzzTest(const uint8_t* data, size_t size)
67    {
68        const std::string path = "test.abc";
69        if (size <= 0) {
70            return;
71        }
72        double input = 0;
73        if (size > MAXBYTELEN) {
74            size = MAXBYTELEN;
75        }
76        if (memcpy_s(&input, MAXBYTELEN, data, size) != 0) {
77            std::cout << "memcpy_s failed!" << std::endl;
78            UNREACHABLE();
79        }
80
81        std::vector<uint8_t> vec(size, *data);
82        g_nativeEngine.RunScriptBuffer(path.c_str(), vec, true);
83        g_nativeEngine.RunScriptBuffer(path.c_str(), vec, false);
84        uint8_t* buffer = const_cast<uint8_t*>(data);
85        g_nativeEngine.RunScriptBuffer(path, buffer, size, true);
86        g_nativeEngine.RunScriptBuffer(path, buffer, size, false);
87    }
88}
89
90// Fuzzer entry point.
91extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
92{
93    // Run your code on data.
94    OHOS::RunScriptBufferFuzzTest(data, size);
95    return 0;
96}