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3.15b

/* telnet.h */

/* Synchronet telnet-related constants and function prototypes */

/* $Id: telnet.h,v 1.1.1.2 2018/04/24 16:42:39 root Exp $ */

/****************************************************************************
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 * Copyright 2008 Rob Swindell - http://www.synchro.net/copyright.html		*
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 * 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			*
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 ****************************************************************************/

#ifndef _TELNET_H
#define _TELNET_H

#include "gen_defs.h"	/* uchar */

/* commands */

#define TELNET_IAC		255	/* 0xff - Interpret as command */
#define TELNET_DONT		254 /* 0xfe - Don't do option */
#define TELNET_DO   	253 /* 0xfd - Do option */
#define TELNET_WONT 	252 /* 0xfc - Won't do option */
#define TELNET_WILL 	251 /* 0xfb - Will do option */

#define TELNET_SB       250	/* sub-negotiation */
#define TELNET_GA		249	/* Go ahead */
#define TELNET_EL		248 /* Erase line */
#define TELNET_EC		247 /* Erase char */
#define TELNET_AYT		246 /* Are you there? */
#define TELNET_AO		245 /* Abort output */
#define TELNET_IP		244 /* Interrupt process */
#define TELNET_BRK		243 /* Break */
#define TELNET_SYNC		242 /* Data mark */
#define TELNET_NOP		241 /* No operation */

#define TELNET_SE       240 /*  End of subnegotiation parameters. */

/* options */

enum {
 	 TELNET_BINARY_TX
	,TELNET_ECHO
	,TELNET_RECONN
	,TELNET_SUP_GA					/* suppress go ahead */
	,TELNET_APPROX_MSG_SIZE
	,TELNET_STATUS
	,TELNET_TIMING_MARK
	,TELNET_REMOTE_CTRL
	,TELNET_OUTPUT_LINE_WIDTH
	,TELNET_OUTPUT_PAGE_SIZE
	,TELNET_OUTPUT_CR_DISP			/* 10 */
	,TELNET_OUTPUT_HTAB_STOPS
	,TELNET_OUTPUT_HTAB_DISP
	,TELNET_OUTPUT_FF_DISP
	,TELNET_OUTPUT_VTAB_STOPS
	,TELNET_OUTPUT_VTAB_DISP
	,TELNET_OUTPUT_LF_DISP
	,TELNET_EXASCII
	,TELNET_LOGOUT
	,TELNET_BYTE_MACRO
	,TELNET_DATA_ENTRY_TERM			/* 20 */
	,TELNET_SUPDUP
	,TELNET_SUPDUP_OUTPUT
	,TELNET_SEND_LOCATION			/* [RFC779], ASCII string argument */
	,TELNET_TERM_TYPE
	,TELNET_END_OF_RECORD
	,TELNET_TACACS_USERID
	,TELNET_OUTPUT_MARKING
	,TELNET_TERM_LOCATION_NUMBER	/* 64-bit argument */
	,TELNET_3270
	,TELNET_X3_PAD					/* 30 */
	,TELNET_NEGOTIATE_WINDOW_SIZE
	,TELNET_TERM_SPEED
	,TELNET_REMOTE_FLOW
	,TELNET_LINE_MODE
	,TELNET_X_DISPLAY_LOCATION
	,TELNET_ENVIRON					/* Not used */
	,TELNET_AUTH_OPTION
	,TELNET_ENCRYPTION_OPTION
	,TELNET_NEW_ENVIRON				/* RFC 1572 */
	,TELNET_3270E					/* 40 */
	,TELNET_XAUTH					/* [Earhart] */
	,TELNET_CHARSET					/* [RFC2066] */
	,TELNET_RSP	                    /* [Barnes] */
	,TELNET_COMPORT_CTRL			/* [RFC2217] */
	,TLENET_SUP_LOCAL_ECHO			/* [Atmar] */
	,TELNET_START_TLS               /* [Boe] */
	,TELNET_KERMIT                  /* [RFC2840] */
	,TELNET_SEND_URL                /* [Croft] */
	,TELNET_FORWARD_X				/* [Altman] */


	,TELNET_EXOPL=255	/* Extended options list */
};

/* Terminal-type sub option codes, see RFC 1091 */
#define TELNET_TERM_IS		0
#define TELNET_TERM_SEND	1
#define TELNET_TERM_MAXLEN	40

/* New environment sub option codes, see RFC 1572 */
#define TELNET_ENVIRON_IS		0
#define TELNET_ENVIRON_SEND		1
#define TELNET_ENVIRON_INFO		2

#define TELNET_ENVIRON_VAR		0
#define TELNET_ENVIRON_VALUE	1
#define TELNET_ENVIRON_ESC		2
#define TELNET_ENVIRON_USERVAR	3

/* bits for telnet_mode */   
   
#define TELNET_MODE_GATE	(1<<2)	/* Pass-through telnet commands/responses */
#define TELNET_MODE_OFF		(1<<3)	/* This is not a Telnet connection */

#ifdef DLLEXPORT
#undef DLLEXPORT
#endif
#ifdef DLLCALL
#undef DLLCALL
#endif

#ifdef _WIN32
	#ifdef SBBS_EXPORTS
		#define DLLEXPORT __declspec(dllexport)
	#else
		#define DLLEXPORT __declspec(dllimport)
	#endif
	#ifdef __BORLANDC__
		#define DLLCALL __stdcall
	#else
		#define DLLCALL
	#endif
#else
	#define DLLEXPORT
	#define DLLCALL
#endif

#ifdef __cplusplus  
extern "C" {   
#endif   

DLLEXPORT const char* DLLCALL telnet_cmd_desc(uchar cmd);   
DLLEXPORT const char* DLLCALL telnet_opt_desc(uchar opt);
DLLEXPORT		uchar DLLCALL telnet_opt_ack(uchar cmd);
DLLEXPORT		uchar DLLCALL telnet_opt_nak(uchar cmd);

#ifdef __cplusplus
}
#endif

#endif /* don't add anything after this line */

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