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  • /***************************************************************************
     *   Copyright (C) 2005 by Dominic Rath                                    *
     *   Dominic.Rath@gmx.de                                                   *
     *                                                                         *
     *   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 2 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, write to the                         *
     *   Free Software Foundation, Inc.,                                       *
     *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
     ***************************************************************************/
    #ifndef TELNET_SERVER_H
    #define TELNET_SERVER_H
    
    #include "server.h"
    
    #define TELNET_BUFFER_SIZE (1024)
    
    #define TELNET_OPTION_MAX_SIZE (128)
    #define TELNET_LINE_HISTORY_SIZE (128)
    #define TELNET_LINE_MAX_SIZE (256)
    
    enum telnet_states
    {
    	TELNET_STATE_DATA,
    	TELNET_STATE_IAC,
    	TELNET_STATE_SB,
    	TELNET_STATE_SE,
    	TELNET_STATE_WILL,
    	TELNET_STATE_WONT,
    	TELNET_STATE_DO,
    	TELNET_STATE_DONT,
    	TELNET_STATE_ESCAPE,
    };
    
    typedef struct telnet_connection_s
    {
    	char *prompt;
    
    	int suppress_prompt;
    
    	enum telnet_states state;
    	char line[TELNET_LINE_MAX_SIZE];
    	int line_size;
    	int line_cursor;
    	char option[TELNET_OPTION_MAX_SIZE];
    	int option_size;
    	char last_escape;
    	char *history[TELNET_LINE_HISTORY_SIZE];
    	int next_history;
    	int current_history;
    } telnet_connection_t;
    
    typedef struct telnet_service_s
    {
    	char *banner;
    } telnet_service_t;
    
    extern int telnet_init(char *banner);
    extern int telnet_register_commands(command_context_t *command_context);
    
    #endif /* TELNET_SERVER_H */