/*

 * Copyright (c) 1989, 1993

 *	The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *	@(#)ext.h	8.2 (Berkeley) 12/15/93

 */

/* $Heimdal: ext.h,v 1.23 2001/08/29 00:45:22 assar Exp $

   $NetBSD: ext.h,v 1.2 2003/08/07 09:15:29 agc Exp $ */

#ifndef __EXT_H__

#define __EXT_H__

/*

 * Telnet server variable declarations

 */

extern char	options[256];

extern char	do_dont_resp[256];

extern char	will_wont_resp[256];

extern int	flowmode;	/* current flow control state */

extern int	restartany;	/* restart output on any character state */

#ifdef DIAGNOSTICS

extern int	diagnostic;	/* telnet diagnostic capabilities */

#endif /* DIAGNOSTICS */

extern int	require_otp;

#ifdef AUTHENTICATION

extern int	auth_level;

#endif

extern const char *new_login;

extern slcfun	slctab[NSLC + 1];	/* slc mapping table */

extern char	*terminaltype;

/*

 * I/O data buffers, pointers, and counters.

 */

extern char	ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;

extern char	netibuf[BUFSIZ], *netip;

extern char	netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;

extern char	*neturg;		/* one past last bye of urgent data */

extern int	pcc, ncc;

extern int	ourpty, net;

extern char	*line;

extern int	SYNCHing;		/* we are in TELNET SYNCH mode */

int telnet_net_write (unsigned char *str, int len);

void net_encrypt (void);

int telnet_spin (void);

char *telnet_getenv (const char *val);

char *telnet_gets (char *prompt, char *result, int length, int echo);

void get_slc_defaults (void);

void telrcv (void);

void send_do (int option, int init);

void willoption (int option);

void send_dont (int option, int init);

void wontoption (int option);

void send_will (int option, int init);

void dooption (int option);

void send_wont (int option, int init);

void dontoption (int option);

void suboption (void);

void doclientstat (void);

void send_status (void);

void init_termbuf (void);

void set_termbuf (void);

int spcset (int func, cc_t *valp, cc_t **valpp);

void set_utid (void);

int getpty (int *ptynum);

int tty_isecho (void);

int tty_flowmode (void);

int tty_restartany (void);

void tty_setecho (int on);

int tty_israw (void);

void tty_binaryin (int on);

void tty_binaryout (int on);

int tty_isbinaryin (void);

int tty_isbinaryout (void);

int tty_issofttab (void);

void tty_setsofttab (int on);

int tty_islitecho (void);

void tty_setlitecho (int on);

int tty_iscrnl (void);

void tty_tspeed (int val);

void tty_rspeed (int val);

void getptyslave (void);

int cleanopen (char *line);

void startslave (const char *host, const char *, int autologin, char *autoname);

void init_env (void);

void start_login (const char *host, int autologin, char *name);

void cleanup (int sig);

int main (int argc, char **argv);

int getterminaltype (char *name, size_t);

void _gettermname (void);

int terminaltypeok (char *s);

void my_telnet ();

void interrupt (void);

void sendbrk (void);

void sendsusp (void);

void recv_ayt (void);

void doeof (void);

void flowstat (void);

void clientstat (int code, int parm1, int parm2);

int ttloop (void);

int stilloob (int s);

void ptyflush (void);

char *nextitem (char *current);

void netclear (void);

void netflush (void);

void writenet (unsigned char *ptr, int len);

void fatal (int f, char *msg);

void fatalperror (int f, const char *msg);

void fatalperror_errno (int f, const char *msg, int error);

void edithost (char *pat, char *host);

void putstr (char *s);

void putchr (int cc);

void putf (char *cp, char *where);

void printoption (char *fmt, int option);

void printsub (int direction, unsigned char *pointer, int length);

void printdata (char *tag, char *ptr, int cnt);

int login_tty(int t);

#ifdef ENCRYPTION

extern void	(*encrypt_output) (unsigned char *, int);

extern int	(*decrypt_input) (int);

extern char	*nclearto;

#endif

/*

 * The following are some clocks used to decide how to interpret

 * the relationship between various variables.

 */

struct clocks_t{

    int

	system,			/* what the current time is */

	echotoggle,		/* last time user entered echo character */

	modenegotiated,		/* last time operating mode negotiated */

	didnetreceive,		/* last time we read data from network */

	ttypesubopt,		/* ttype subopt is received */

	tspeedsubopt,		/* tspeed subopt is received */

	environsubopt,		/* environ subopt is received */

	oenvironsubopt,		/* old environ subopt is received */

	xdisplocsubopt,		/* xdisploc subopt is received */

	baseline,		/* time started to do timed action */

	gotDM;			/* when did we last see a data mark */

};

extern struct clocks_t clocks;

extern int log_unauth;

extern int no_warn;

extern int def_tspeed, def_rspeed;

#ifdef	TIOCSWINSZ

extern int def_row, def_col;

#endif

#ifdef STREAMSPTY

extern int really_stream;

#endif

#ifndef USE_IM

# ifdef CRAY

#  define USE_IM "Cray UNICOS (%h) (%t)"

# endif

# ifdef _AIX

#  define USE_IM "%s %v.%r (%h) (%t)"

# endif

# ifndef USE_IM

#  define USE_IM "%s %r (%h) (%t)"

# endif

#endif

#define DEFAULT_IM "\r\n\r\n" USE_IM "\r\n\r\n\r\n"

#endif /* __EXT_H__ */