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/*
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 "CommonIO.h"
#include <fstream>
#include "Exceptions.h"
using namespace std;
using namespace dev;
string dev::memDump(bytes const& _b, unsigned _w, bool _html)
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{
stringstream ret;
if (_html)
ret << "<pre style=\"font-family: Monospace,Lucida Console,Courier,Courier New,sans-serif; font-size: small\">";
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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())
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if (_b[j] >= 32 && _b[j] < 127)
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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();
if (length == 0) // return early, MSVC does not like reading 0 bytes
return {};
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());
}