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   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2005 by Dominic Rath                                    *
   5  *   Dominic.Rath@gmx.de                                                   *
   6  *                                                                         *
   7  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   8  *   oyvind.harboe@zylin.com                                               *
   9  *                                                                         *
  10  *   Copyright (C) 2008 by Spencer Oliver                                  *
  11  *   spen@spen-soft.co.uk                                                  *
  12  ***************************************************************************/
  13
  14 #ifndef OPENOCD_SERVER_TELNET_SERVER_H
  15 #define OPENOCD_SERVER_TELNET_SERVER_H
  16
  17 #include <server/server.h>
  18
  19 #define TELNET_BUFFER_SIZE (10*1024)
  20
  21 #define TELNET_LINE_HISTORY_SIZE (128)
  22 #define TELNET_LINE_MAX_SIZE (10*256)
  23
  24 enum telnet_states {
  25         TELNET_STATE_DATA,
  26         TELNET_STATE_IAC,
  27         TELNET_STATE_SB,
  28         TELNET_STATE_SE,
  29         TELNET_STATE_WILL,
  30         TELNET_STATE_WONT,
  31         TELNET_STATE_DO,
  32         TELNET_STATE_DONT,
  33         TELNET_STATE_ESCAPE,
  34 };
  35
  36 struct telnet_connection {
  37         char *prompt;
  38         bool prompt_visible;
  39         enum telnet_states state;
  40         char line[TELNET_LINE_MAX_SIZE];
  41         size_t line_size;
  42         size_t line_cursor;
  43         char last_escape;
  44         char *history[TELNET_LINE_HISTORY_SIZE];
  45         size_t next_history;
  46         size_t current_history;
  47         bool closed;
  48 };
  49
  50 struct telnet_service {
  51         char *banner;
  52 };
  53
  54 int telnet_init(char *banner);
  55 int telnet_register_commands(struct command_context *command_context);
  56 void telnet_service_free(void);
  57
  58 #endif /* OPENOCD_SERVER_TELNET_SERVER_H */