TelnetBuffer.h

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//**********************************************************************
//
//  REGCOM: Regimental Command
//  Copyright (C) 2008 Randi J. Relander
//    <rjrelander@users.sourceforge.net>
//
//  This program 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.
//  
//  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 General Public License for more details.
//  
//  You should have received a copy of the GNU General Public
//  License along with this program.  If not, see 
//  <http://www.gnu.org/licenses/>.
//  
//**********************************************************************

#ifndef REGCOM_NETWORK_COMMON_TELNET_BUFFER_H
#define REGCOM_NETWORK_COMMON_TELNET_BUFFER_H

// SYSTEM INCLUDES
#include <string>

// PROJECT INCLUDES
#include "regcom/network/TcpSocket.h"
#include "regcom/common/ErrorCode.h"

// NAMESPACES
namespace regcom {
namespace network {

//  CLASS: TelnetBuffer
class TelnetBuffer
{
public:

    // PUBLIC METHODS

    TelnetBuffer();

    virtual ~TelnetBuffer();

    common::ErrorCodeType Receive(TcpSocket& rSocket);

    const std::string& GetBuffer() const { return m_Buffer; }

private:

    enum EscapeState
    {
        ESCAPE_STATE_IDLE,        
        ESCAPE_STATE_CSI,        
        ESCAPE_STATE_CMD,        
        ESCAPE_STATE_STR,        
        ESCAPE_STATE_INT,        
    };

    void ProcessCharacter(char ch, TcpSocket& rSocket);

    void ProcessControlCharacter(char ch, TcpSocket& rSocket);

    void ProcessEscapeSequence(char ch, TcpSocket& rSocket);

    // MEMBER VARIABLES

    std::string m_Buffer;

    TcpSocket* m_pSocket;

    bool m_Receiving;

    EscapeState m_EscapeState;
};

} // namespace network
} // namespace regcom

#endif

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Copyright © 2008
Randi J. Relander