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openvpn3/openvpn/buffer/asiobuf.hpp
2015-01-06 12:56:21 -07:00

57 lines
1.8 KiB
C++

// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2015 OpenVPN Technologies, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
#ifndef OPENVPN_BUFFER_ASIOBUF_H
#define OPENVPN_BUFFER_ASIOBUF_H
#include <boost/asio.hpp>
#include <openvpn/buffer/buffer.hpp>
namespace openvpn {
class AsioConstBufferSeq2
{
public:
AsioConstBufferSeq2(const Buffer& b1, const Buffer& b2)
: buf({{b1.c_data(), b1.size()},
{b2.c_data(), b2.size()}})
{
}
// Implement the ConstBufferSequence requirements.
typedef boost::asio::const_buffer value_type;
typedef const boost::asio::const_buffer* const_iterator;
const boost::asio::const_buffer* begin() const { return buf; }
const boost::asio::const_buffer* end() const { return buf + 2; }
const size_t size() const
{
return boost::asio::buffer_size(buf[0])
+ boost::asio::buffer_size(buf[1]);
}
private:
const boost::asio::const_buffer buf[2];
};
}
#endif