82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "aidl.h"
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#include "fake_io_delegate.h"
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#include "options.h"
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#include <fuzzer/FuzzedDataProvider.h>
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#include <iostream>
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#ifdef FUZZ_LOG
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constexpr bool kFuzzLog = true;
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#else
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constexpr bool kFuzzLog = false;
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#endif
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using android::aidl::test::FakeIoDelegate;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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if (size <= 1) return 0; // no use
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// b/145447540, large nested expressions sometimes hit the stack depth limit.
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// Fuzzing things of this size don't provide any additional meaningful
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// coverage. This is an approximate value which should allow us to explore all
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// of the language w/o hitting a stack overflow.
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if (size > 2000) return 0;
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FuzzedDataProvider provider = FuzzedDataProvider(data, size);
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FakeIoDelegate io;
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std::vector<std::string> args;
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size_t numArgs = provider.ConsumeIntegralInRange(0, 20);
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for (size_t i = 0; i < numArgs; i++) {
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args.emplace_back(provider.ConsumeRandomLengthString());
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}
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while (provider.remaining_bytes() > 0) {
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const std::string name = provider.ConsumeRandomLengthString();
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const std::string contents = provider.ConsumeRandomLengthString();
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io.SetFileContents(name, contents);
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}
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if (kFuzzLog) {
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std::cout << "cmd: ";
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for (const std::string& arg : args) {
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std::cout << arg << " ";
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}
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std::cout << std::endl;
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for (const auto& [f, input] : io.InputFiles()) {
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std::cout << "INPUT " << f << ": " << input << std::endl;
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}
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}
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int ret = android::aidl::aidl_entry(Options::From(args), io);
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if (kFuzzLog) {
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std::cout << "RET: " << ret << std::endl;
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if (ret != 0) {
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for (const auto& [f, output] : io.OutputFiles()) {
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std::cout << "OUTPUT " << f << ": " << std::endl;
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std::cout << output << std::endl;
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}
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}
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}
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return 0;
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}
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