/*

 * 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.

 *

 *	@(#)defs.h	8.1 (Berkeley) 6/4/93

 */

/*

 * Telnet server defines

 */

#ifndef __DEFS_H__

#define __DEFS_H__

#ifndef	BSD

# define	BSD 43

#endif

#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS)

#define TELOPTS

#define TELCMDS

#define	SLC_NAMES

#endif

#if	!defined(TIOCSCTTY) && defined(TCSETCTTY)

# define	TIOCSCTTY TCSETCTTY

#endif

#ifndef TIOCPKT_FLUSHWRITE

#define TIOCPKT_FLUSHWRITE      0x02

#endif

#ifndef TIOCPKT_NOSTOP

#define TIOCPKT_NOSTOP  0x10

#endif

#ifndef TIOCPKT_DOSTOP

#define TIOCPKT_DOSTOP  0x20

#endif

/*

 * I/O data buffers defines

 */

#define	NETSLOP	64

#ifdef _CRAY

#undef BUFSIZ

#define BUFSIZ  2048

#endif

#define	NIACCUM(c)	{   *netip++ = c; \

			    ncc++; \

			}

/* clock manipulations */

#define	settimer(x)	(clocks.x = ++clocks.system)

#define	sequenceIs(x,y)	(clocks.x < clocks.y)

/*

 * Structures of information for each special character function.

 */

typedef struct {

	unsigned char	flag;		/* the flags for this function */

	cc_t		val;		/* the value of the special character */

} slcent, *Slcent;

typedef struct {

	slcent		defset;		/* the default settings */

	slcent		current;	/* the current settings */

	cc_t		*sptr;		/* a pointer to the char in */

					/* system data structures */

} slcfun, *Slcfun;

#ifdef DIAGNOSTICS

/*

 * Diagnostics capabilities

 */

#define	TD_REPORT	0x01	/* Report operations to client */

#define TD_EXERCISE	0x02	/* Exercise client's implementation */

#define TD_NETDATA	0x04	/* Display received data stream */

#define TD_PTYDATA	0x08	/* Display data passed to pty */

#define	TD_OPTIONS	0x10	/* Report just telnet options */

#endif /* DIAGNOSTICS */

/*

 * We keep track of each side of the option negotiation.

 */

#define	MY_STATE_WILL		0x01

#define	MY_WANT_STATE_WILL	0x02

#define	MY_STATE_DO		0x04

#define	MY_WANT_STATE_DO	0x08

/*

 * Macros to check the current state of things

 */

#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)

#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)

#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)

#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)

#define	my_state_is_dont(opt)		(!my_state_is_do(opt))

#define	my_state_is_wont(opt)		(!my_state_is_will(opt))

#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))

#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))

#define	set_my_state_do(opt)		(options[opt] |= MY_STATE_DO)

#define	set_my_state_will(opt)		(options[opt] |= MY_STATE_WILL)

#define	set_my_want_state_do(opt)	(options[opt] |= MY_WANT_STATE_DO)

#define	set_my_want_state_will(opt)	(options[opt] |= MY_WANT_STATE_WILL)

#define	set_my_state_dont(opt)		(options[opt] &= ~MY_STATE_DO)

#define	set_my_state_wont(opt)		(options[opt] &= ~MY_STATE_WILL)

#define	set_my_want_state_dont(opt)	(options[opt] &= ~MY_WANT_STATE_DO)

#define	set_my_want_state_wont(opt)	(options[opt] &= ~MY_WANT_STATE_WILL)

/*

 * Tricky code here.  What we want to know is if the MY_STATE_WILL

 * and MY_WANT_STATE_WILL bits have the same value.  Since the two

 * bits are adjacent, a little arithmatic will show that by adding

 * in the lower bit, the upper bit will be set if the two bits were

 * different, and clear if they were the same.

 */

#define my_will_wont_is_changing(opt) \

			((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL)

#define my_do_dont_is_changing(opt) \

			((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO)

/*

 * Make everything symmetrical

 */

#define	HIS_STATE_WILL			MY_STATE_DO

#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO

#define HIS_STATE_DO			MY_STATE_WILL

#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL

#define	his_state_is_do			my_state_is_will

#define	his_state_is_will		my_state_is_do

#define his_want_state_is_do		my_want_state_is_will

#define his_want_state_is_will		my_want_state_is_do

#define	his_state_is_dont		my_state_is_wont

#define	his_state_is_wont		my_state_is_dont

#define his_want_state_is_dont		my_want_state_is_wont

#define his_want_state_is_wont		my_want_state_is_dont

#define	set_his_state_do		set_my_state_will

#define	set_his_state_will		set_my_state_do

#define	set_his_want_state_do		set_my_want_state_will

#define	set_his_want_state_will		set_my_want_state_do

#define	set_his_state_dont		set_my_state_wont

#define	set_his_state_wont		set_my_state_dont

#define	set_his_want_state_dont		set_my_want_state_wont

#define	set_his_want_state_wont		set_my_want_state_dont

#define his_will_wont_is_changing	my_do_dont_is_changing

#define his_do_dont_is_changing		my_will_wont_is_changing

#endif /* __DEFS_H__ */