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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 <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;
extern "C"
{
extern char const* compileJSON(char const* _input, bool _optimize);
}
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()
{
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));
}
cout << "Got " << numbers.size() << " inputs:" << endl;
Assembly assembly;
for (u256 const& n: numbers)
{
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())
);
}
}
}
void testCompiler()
{
cout << "Testing compiler." << endl;
string input;
while (!cin.eof())
{
string s;
getline(cin, s);
input += s + '\n';
}
bool optimize = true;
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 formal method 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."
)
(
"const-opt",
"Only run the constant optimizer. "
"Expects a binary string of up to 32 bytes on stdin."
);
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 false;
}
if (arguments.count("help"))
cout << options;
else if (arguments.count("const-opt"))
testConstantOptimizer();
else
testCompiler();
return 0;
}
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