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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifndef TELNET_SERVER_H
  21 #define TELNET_SERVER_H
  22
  23 #include "server.h"
  24
  25 #define TELNET_BUFFER_SIZE (1024)
  26
  27 #define TELNET_OPTION_MAX_SIZE (128)
  28 #define TELNET_LINE_HISTORY_SIZE (128)
  29 #define TELNET_LINE_MAX_SIZE (256)
  30
  31 enum telnet_states
  32 {
  33         TELNET_STATE_DATA,
  34         TELNET_STATE_IAC,
  35         TELNET_STATE_SB,
  36         TELNET_STATE_SE,
  37         TELNET_STATE_WILL,
  38         TELNET_STATE_WONT,
  39         TELNET_STATE_DO,
  40         TELNET_STATE_DONT,
  41         TELNET_STATE_ESCAPE,
  42 };
  43
  44 typedef struct telnet_connection_s
  45 {
  46         char *prompt;
  47         enum telnet_states state;
  48         char line[TELNET_LINE_MAX_SIZE];
  49         int line_size;
  50         int line_cursor;
  51         char option[TELNET_OPTION_MAX_SIZE];
  52         int option_size;
  53         char last_escape;
  54         char *history[TELNET_LINE_HISTORY_SIZE];
  55         int next_history;
  56         int current_history;
  57 } telnet_connection_t;
  58
  59 typedef struct telnet_service_s
  60 {
  61         char *banner;
  62 } telnet_service_t;
  63
  64 extern int telnet_init(char *banner);
  65 extern int telnet_register_commands(command_context_t *command_context);
  66
  67 #endif /* TELNET_SERVER_H */