You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

117 lines
3.1 KiB

/*
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& _bytes, unsigned _width, bool _html)
{
stringstream ret;
if (_html)
ret << "<pre style=\"font-family: Monospace,Lucida Console,Courier,Courier New,sans-serif; font-size: small\">";
for (unsigned i = 0; i < _bytes.size(); i += _width)
{
ret << hex << setw(4) << setfill('0') << i << " ";
for (unsigned j = i; j < i + _width; ++j)
if (j < _bytes.size())
if (_bytes[j] >= 32 && _bytes[j] < 127)
if ((char)_bytes[j] == '<' && _html)
ret << "&lt;";
else if ((char)_bytes[j] == '&' && _html)
ret << "&amp;";
else
ret << (char)_bytes[j];
else
ret << '?';
else
ret << ' ';
ret << " ";
for (unsigned j = i; j < i + _width && j < _bytes.size(); ++j)
ret << setfill('0') << setw(2) << hex << (unsigned)_bytes[j] << " ";
ret << "\n";
}
if (_html)
ret << "</pre>";
return ret.str();
}
// Don't forget to delete[] later.
bytesRef dev::contentsNew(std::string const& _file)
{
std::ifstream is(_file, std::ifstream::binary);
if (!is)
return bytesRef();
// 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 bytesRef();
is.seekg (0, is.beg);
bytesRef ret(new byte[length], length);
is.read((char*)ret.data(), length);
is.close();
return ret;
}
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 bytes();
is.seekg (0, is.beg);
bytes ret(length);
is.read((char*)ret.data(), length);
is.close();
return ret;
}
string dev::contentsString(std::string const& _file)
{
std::ifstream is(_file, std::ifstream::binary);
if (!is)
return string();
// 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 string();
is.seekg (0, is.beg);
string ret;
ret.resize(length);
is.read((char*)ret.data(), length);
is.close();
return ret;
}
void dev::writeFile(std::string const& _file, bytesConstRef _data)
{
ofstream(_file, ios::trunc|ios::binary).write((char const*)_data.data(), _data.size());
}