solidity/test/fuzzer.cpp at develop · virtual-bug/solidity · GitHub

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This file is part of solidity.

solidity is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

solidity is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with solidity. If not, see <http://www.gnu.org/licenses/>.

/**

* Executable for use with AFL <http://lcamtuf.coredump.cx/afl>.

#include <libevmasm/Assembly.h>

#include <libevmasm/ConstantOptimiser.h>

#include <solc/jsonCompiler.h>

#include <json/json.h>

#include <boost/program_options.hpp>

#include <string>

#include <iostream>

using namespace std;

using namespace dev;

using namespace dev::eth;

namespace po = boost::program_options;

namespace

{

bool quiet = false;

string contains(string const& _haystack, vector<string> const& _needles)

{

for (string const& needle: _needles)

if (_haystack.find(needle) != string::npos)

return needle;

return "";

}

void testConstantOptimizer()

{

if (!quiet)

cout << "Testing constant optimizer" << endl;

vector<u256> numbers;

while (!cin.eof())

{

h256 data;

cin.read(reinterpret_cast<char*>(data.data()), 32);

numbers.push_back(u256(data));

}

if (!quiet)

cout << "Got " << numbers.size() << " inputs:" << endl;

Assembly assembly;

for (u256 const& n: numbers)

{

if (!quiet)

cout << n << endl;

assembly.append(n);

}

for (bool isCreation: {false, true})

{

for (unsigned runs: {1, 2, 3, 20, 40, 100, 200, 400, 1000})

{

ConstantOptimisationMethod::optimiseConstants(

isCreation,

runs,

assembly,

const_cast<AssemblyItems&>(assembly.items())

);

}

string readInput()

{

string input;

while (!cin.eof())

{

string s;

getline(cin, s);

input += s + '\n';

}

return input;

}

void testStandardCompiler()

{

if (!quiet)

cout << "Testing compiler via JSON interface." << endl;

string input = readInput();

string outputString(compileStandard(input.c_str(), NULL));

Json::Value output;

if (!Json::Reader().parse(outputString, output))

{

cout << "Compiler produced invalid JSON output." << endl;

abort();

}

if (output.isMember("errors"))

for (auto const& error: output["errors"])

{

string invalid = contains(error["type"].asString(), vector<string>{

"Exception",

"InternalCompilerError"

});

if (!invalid.empty())

{

cout << "Invalid error: \"" << error["type"].asString() << "\"" << endl;

abort();

}

void testCompiler(bool optimize)

{

if (!quiet)

cout << "Testing compiler " << (optimize ? "with" : "without") << " optimizer." << endl;

string input = readInput();

string outputString(compileJSON(input.c_str(), optimize));

Json::Value outputJson;

if (!Json::Reader().parse(outputString, outputJson))

{

cout << "Compiler produced invalid JSON output." << endl;

abort();

}

if (outputJson.isMember("errors"))

{

if (!outputJson["errors"].isArray())

{

cout << "Output JSON has \"errors\" but it is not an array." << endl;

abort();

}

for (Json::Value const& error: outputJson["errors"])

{

string invalid = contains(error.asString(), vector<string>{

"Internal compiler error",

"Exception during compilation",

"Unknown exception during compilation",

"Unknown exception while generating contract data output",

"Unknown exception while generating source name output",

"Unknown error while generating JSON"

});

if (!invalid.empty())

{

cout << "Invalid error: \"" << error.asString() << "\"" << endl;

abort();

}

else if (!outputJson.isMember("contracts"))

{

cout << "Output JSON has neither \"errors\" nor \"contracts\"." << endl;

abort();

}

int main(int argc, char** argv)

{

po::options_description options(

R"(solfuzzer, fuzz-testing binary for use with AFL.

Usage: solfuzzer [Options] < input

Reads a single source from stdin, compiles it and signals a failure for internal errors.

Allowed options)",

po::options_description::m_default_line_length,

po::options_description::m_default_line_length - 23);

options.add_options()

("help", "Show this help screen.")

("quiet", "Only output errors.")

(

"standard-json",

"Test via the standard-json interface, i.e. "

"input is expected to be JSON-encoded instead of "

"plain source file."

)

(

"const-opt",

"Run the constant optimizer instead of compiling. "

"Expects a binary string of up to 32 bytes on stdin."

)

(

"without-optimizer",

"Run without optimizations. Cannot be used together with standard-json."

);

po::variables_map arguments;

try

{

po::command_line_parser cmdLineParser(argc, argv);

cmdLineParser.options(options);

po::store(cmdLineParser.run(), arguments);

}

catch (po::error const& _exception)

{

cerr << _exception.what() << endl;

return 1;

}

if (arguments.count("quiet"))

quiet = true;

if (arguments.count("help"))

cout << options;

else if (arguments.count("const-opt"))

testConstantOptimizer();

else if (arguments.count("standard-json"))

testStandardCompiler();

else

testCompiler(!arguments.count("without-optimizer"));

return 0;

}

solidity/test/fuzzer.cpp at develop · virtual-bug/solidity · GitHub

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