mirror of
				https://github.com/ethereum/solidity
				synced 2023-10-03 13:03:40 +00:00 
			
		
		
		
	Co-authored-by: Leonardo <leo@ethereum.org> Co-authored-by: Daniel Kirchner <daniel@ekpyron.org>
		
			
				
	
	
		
			91 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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	This file is part of solidity.
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	solidity is free software: you can redistribute it and/or modify
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	it under the terms of the GNU General Public License as published by
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	the Free Software Foundation, either version 3 of the License, or
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	(at your option) any later version.
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	solidity is distributed in the hope that it will be useful,
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	but WITHOUT ANY WARRANTY; without even the implied warranty of
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	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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	GNU General Public License for more details.
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	You should have received a copy of the GNU General Public License
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	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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#include <test/tools/ossfuzz/protoToSol.h>
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#include <test/tools/ossfuzz/SolidityEvmoneInterface.h>
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#include <test/tools/ossfuzz/solProto.pb.h>
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#include <test/EVMHost.h>
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#include <evmone/evmone.h>
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#include <src/libfuzzer/libfuzzer_macro.h>
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#include <fstream>
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static evmc::VM evmone = evmc::VM{evmc_create_evmone()};
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using namespace solidity::test::fuzzer;
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using namespace solidity::test::solprotofuzzer;
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using namespace solidity;
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using namespace solidity::frontend;
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using namespace solidity::test;
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using namespace solidity::util;
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using namespace std;
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DEFINE_PROTO_FUZZER(Program const& _input)
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{
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	ProtoConverter converter;
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	string sol_source = converter.protoToSolidity(_input);
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	if (char const* dump_path = getenv("PROTO_FUZZER_DUMP_PATH"))
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	{
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		// With libFuzzer binary run this to generate a YUL source file x.yul:
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		// PROTO_FUZZER_DUMP_PATH=x.yul ./a.out proto-input
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		ofstream of(dump_path);
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		of.write(sol_source.data(), static_cast<streamsize>(sol_source.size()));
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	}
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	if (char const* dump_path = getenv("SOL_DEBUG_FILE"))
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	{
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		sol_source.clear();
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		// With libFuzzer binary run this to generate a YUL source file x.yul:
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		// PROTO_FUZZER_LOAD_PATH=x.yul ./a.out proto-input
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		ifstream ifstr(dump_path);
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		sol_source = {
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			std::istreambuf_iterator<char>(ifstr),
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			std::istreambuf_iterator<char>()
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		};
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		std::cout << sol_source << std::endl;
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	}
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	// We target the default EVM which is the latest
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	langutil::EVMVersion version;
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	EVMHost hostContext(version, evmone);
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	string contractName = ":C";
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	string libraryName = converter.libraryTest() ? converter.libraryName() : "";
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	string methodName = "test()";
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	CompilerInput cInput(version, sol_source, contractName, OptimiserSettings::minimal(), {}, false);
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	EvmoneUtility evmoneUtil(
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		hostContext,
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		cInput,
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		contractName,
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		libraryName,
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		methodName
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	);
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	auto minimalResult = evmoneUtil.compileDeployAndExecute();
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	if (minimalResult.has_value())
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	{
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		solAssert(minimalResult->status_code != EVMC_REVERT, "Sol proto fuzzer: Evmone reverted.");
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		if (minimalResult->status_code == EVMC_SUCCESS)
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		solAssert(
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			EvmoneUtility::zeroWord(minimalResult->output_data, minimalResult->output_size),
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			"Proto solc fuzzer: Output incorrect"
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		);
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	}
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}
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