/*

This file is part of cpp-ethereum.

cpp-ethereum 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.

cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.

*/

/** @file CommonIO.cpp

* @author Gav Wood <i@gavwood.com>

* @date 2014

*/

#include "Common.h"

#include <fstream>

#include "Exceptions.h"

using namespace std;

using namespace dev;

string dev::memDump(bytes const& _b, unsigned _w, bool _html)

{

stringstream ret;

if (_html)

ret << "<pre style=\"font-family: Monospace, sans-serif; font-size: small\">";

for (unsigned i = 0; i < _b.size(); i += _w)

{

ret << hex << setw(4) << setfill('0') << i << " ";

for (unsigned j = i; j < i + _w; ++j)

if (j < _b.size())

if (_b[j] >= 32 && _b[j] < 127)

if ((char)_b[j] == '<' && _html)

ret << "&lt;";

else if ((char)_b[j] == '&' && _html)

ret << "&amp;";

else

ret << (char)_b[j];

else

ret << '?';

else

ret << ' ';

ret << " ";

for (unsigned j = i; j < i + _w && j < _b.size(); ++j)

ret << setfill('0') << setw(2) << hex << (unsigned)_b[j] << " ";

ret << "\n";

}

if (_html)

ret << "</pre>";

return ret.str();

}

bytes dev::contents(std::string const& _file)

{

std::ifstream is(_file, std::ifstream::binary);

if (!is)

return bytes();

// get length of file:

is.seekg (0, is.end);

streamoff length = is.tellg();

is.seekg (0, is.beg);

bytes ret(length);

is.read((char*)ret.data(), length);

is.close();

return ret;

}

void dev::writeFile(std::string const& _file, bytes const& _data)

{

ofstream(_file, ios::trunc).write((char const*)_data.data(), _data.size());

}