[apple/network_cmds.git] / telnet.tproj / externs.h

/*
 * Copyright (c) 1988, 1990, 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 *	@(#)externs.h	8.3 (Berkeley) 5/30/95
 *	$FreeBSD: src/crypto/telnet/telnet/externs.h,v 1.4.2.2 2002/04/13 10:59:08 markm Exp $
 */

#ifndef	BSD
# define BSD 43
#endif

/*
 * ucb stdio.h defines BSD as something weird
 */
#if defined(sun) && defined(__svr4__)
#define BSD 43
#endif

#ifndef	USE_TERMIO
# if BSD > 43 || defined(SYSV_TERMIO)
#  define USE_TERMIO
# endif
#endif

#include <stdio.h>
#include <setjmp.h>
#include <sys/ioctl.h>
#include <errno.h>
#ifdef	USE_TERMIO
# ifndef	VINTR
#  include <sys/termios.h>
# endif
# define termio termios
#endif
#if defined(NO_CC_T) || !defined(USE_TERMIO)
# if !defined(USE_TERMIO)
typedef char cc_t;
# else
typedef unsigned char cc_t;
# endif
#endif

#include <string.h>

#if defined(IPSEC)
#include <netinet6/ipsec.h>
#if defined(IPSEC_POLICY_IPSEC)
extern char *ipsec_policy_in;
extern char *ipsec_policy_out;
#endif
#endif

#ifndef	_POSIX_VDISABLE
# ifdef sun
#  include <sys/param.h>	/* pick up VDISABLE definition, mayby */
# endif
# ifdef VDISABLE
#  define _POSIX_VDISABLE VDISABLE
# else
#  define _POSIX_VDISABLE ((cc_t)'\377')
# endif
#endif

#define	SUBBUFSIZE	256

#if	!defined(P)
# ifdef	__STDC__
#  define	P(x)	x
# else
#  define	P(x)	()
# endif
#endif

extern int
    autologin,		/* Autologin enabled */
    skiprc,		/* Don't process the ~/.telnetrc file */
    eight,		/* use eight bit mode (binary in and/or out */
    family,		/* address family of peer */
    flushout,		/* flush output */
    connected,		/* Are we connected to the other side? */
    globalmode,		/* Mode tty should be in */
    telnetport,		/* Are we connected to the telnet port? */
    localflow,		/* Flow control handled locally */
    restartany,		/* If flow control, restart output on any character */
    localchars,		/* we recognize interrupt/quit */
    donelclchars,	/* the user has set "localchars" */
    showoptions,
    net,		/* Network file descriptor */
    tin,		/* Terminal input file descriptor */
    tout,		/* Terminal output file descriptor */
    crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
    autoflush,		/* flush output when interrupting? */
    autosynch,		/* send interrupt characters with SYNCH? */
    SYNCHing,		/* Is the stream in telnet SYNCH mode? */
    donebinarytoggle,	/* the user has put us in binary */
    dontlecho,		/* do we suppress local echoing right now? */
    crmod,
    netdata,		/* Print out network data flow */
    prettydump,		/* Print "netdata" output in user readable format */
    termdata,		/* Print out terminal data flow */
    debug,		/* Debug level */
    doaddrlookup,	/* do a reverse lookup? */
    clienteof;		/* Client received EOF */

extern cc_t escape;	/* Escape to command mode */
extern cc_t rlogin;	/* Rlogin mode escape character */
#ifdef	KLUDGELINEMODE
extern cc_t echoc;	/* Toggle local echoing */
#endif

extern char
    *prompt;		/* Prompt for command. */

extern char
    doopt[],
    dont[],
    will[],
    wont[],
    options[],		/* All the little options */
    *hostname;		/* Who are we connected to? */
#ifdef	ENCRYPTION
extern void (*encrypt_output)(unsigned char *, int);
extern int (*decrypt_input)(int);
#endif	/* ENCRYPTION */

/*
 * 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;}

/*
 * Make everything symetrical
 */

#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

#if	defined(USE_TERMIO)
#define	SIG_FUNC_RET	void
#else
#define	SIG_FUNC_RET	int
#endif

#ifdef	SIGINFO
extern SIG_FUNC_RET
    ayt_status(void);
#endif

extern FILE
    *NetTrace;		/* Where debugging output goes */
extern unsigned char
    NetTraceFile[];	/* Name of file where debugging output goes */
extern void
    SetNetTrace(char *);	/* Function to change where debugging goes */

extern jmp_buf
    peerdied,
    toplevel;		/* For error conditions. */

extern void
    command(int, const char *, int),
    Dump(char, unsigned char *, int),
    env_init(void),
    Exit(int),
    ExitString(const char *, int),
    init_network(void),
    init_sys(void),
    init_telnet(void),
    init_terminal(void),
    intp(void),
    optionstatus(void),
    printoption(const char *, int, int),
    printsub(char, unsigned char *, int),
    quit(void),
    sendabort(void),
    sendbrk(void),
    sendeof(void),
    sendsusp(void),
    sendnaws(void),
    sendayt(void),
    setconnmode(int),
    setcommandmode(void),
    set_escape_char(char *s),
    setneturg(void),
    sys_telnet_init(void),
    telnet(char *),
    tel_enter_binary(int),
    tel_leave_binary(int),
    TerminalFlushOutput(void),
    TerminalNewMode(int),
    TerminalRestoreState(void),
    TerminalSaveState(void),
    TerminalDefaultChars(void),
    TerminalSpeeds(long *, long *),
    tninit(void),
    upcase(char *),
    willoption(int),
    wontoption(int);

extern void
    send_do(int, int),
    send_dont(int, int),
    send_will(int, int),
    send_wont(int, int);

extern void
    lm_will(unsigned char *, int),
    lm_wont(unsigned char *, int),
    lm_do(unsigned char *, int),
    lm_dont(unsigned char *, int),
    lm_mode(unsigned char *, int, int);

extern void
    slc_init(void),
    slcstate(void),
    slc_mode_export(void),
    slc_mode_import(int),
    slc_import(int),
    slc_export(void),
    slc(unsigned char *, int),
    slc_check(void),
    slc_start_reply(void),
    slc_add_reply(unsigned char, unsigned char, cc_t),
    slc_end_reply(void);
extern int
    getconnmode(void),
    opt_welldefined(const char *),
    NetClose(int),
    netflush(void),
    process_rings(int, int, int, int, int, int),
    rlogin_susp(void),
    SetSockOpt(int, int, int, int),
    slc_update(void),
    stilloob(void),
    telrcv(void),
    TerminalRead(char *, int),
    TerminalWrite(char *, int),
    TerminalAutoFlush(void),
    TerminalWindowSize(long *, long *),
    TerminalSpecialChars(int),
    tn(int, char **),
    ttyflush(int);

extern void
    env_opt(unsigned char *, int),
    env_opt_start(void),
    env_opt_start_info(void),
    env_opt_add(unsigned char *),
    env_opt_end(int);

extern unsigned char
    *env_default(int, int),
    *env_getvalue(const unsigned char *);

extern int
    get_status(char *),
    dosynch(char *);

extern cc_t
    *tcval(int);

#ifndef	USE_TERMIO

extern struct	tchars ntc;
extern struct	ltchars nltc;
extern struct	sgttyb nttyb;

# define termEofChar		ntc.t_eofc
# define termEraseChar		nttyb.sg_erase
# define termFlushChar		nltc.t_flushc
# define termIntChar		ntc.t_intrc
# define termKillChar		nttyb.sg_kill
# define termLiteralNextChar	nltc.t_lnextc
# define termQuitChar		ntc.t_quitc
# define termSuspChar		nltc.t_suspc
# define termRprntChar		nltc.t_rprntc
# define termWerasChar		nltc.t_werasc
# define termStartChar		ntc.t_startc
# define termStopChar		ntc.t_stopc
# define termForw1Char		ntc.t_brkc
extern cc_t termForw2Char;
extern cc_t termAytChar;

# define termEofCharp		(cc_t *)&ntc.t_eofc
# define termEraseCharp		(cc_t *)&nttyb.sg_erase
# define termFlushCharp		(cc_t *)&nltc.t_flushc
# define termIntCharp		(cc_t *)&ntc.t_intrc
# define termKillCharp		(cc_t *)&nttyb.sg_kill
# define termLiteralNextCharp	(cc_t *)&nltc.t_lnextc
# define termQuitCharp		(cc_t *)&ntc.t_quitc
# define termSuspCharp		(cc_t *)&nltc.t_suspc
# define termRprntCharp		(cc_t *)&nltc.t_rprntc
# define termWerasCharp		(cc_t *)&nltc.t_werasc
# define termStartCharp		(cc_t *)&ntc.t_startc
# define termStopCharp		(cc_t *)&ntc.t_stopc
# define termForw1Charp		(cc_t *)&ntc.t_brkc
# define termForw2Charp		(cc_t *)&termForw2Char
# define termAytCharp		(cc_t *)&termAytChar

# else

extern struct	termio new_tc;

# define termEofChar		new_tc.c_cc[VEOF]
# define termEraseChar		new_tc.c_cc[VERASE]
# define termIntChar		new_tc.c_cc[VINTR]
# define termKillChar		new_tc.c_cc[VKILL]
# define termQuitChar		new_tc.c_cc[VQUIT]

# ifndef	VSUSP
extern cc_t termSuspChar;
# else
#  define termSuspChar		new_tc.c_cc[VSUSP]
# endif
# if	defined(VFLUSHO) && !defined(VDISCARD)
#  define VDISCARD VFLUSHO
# endif
# ifndef	VDISCARD
extern cc_t termFlushChar;
# else
#  define termFlushChar		new_tc.c_cc[VDISCARD]
# endif
# ifndef VWERASE
extern cc_t termWerasChar;
# else
#  define termWerasChar		new_tc.c_cc[VWERASE]
# endif
# ifndef	VREPRINT
extern cc_t termRprntChar;
# else
#  define termRprntChar		new_tc.c_cc[VREPRINT]
# endif
# ifndef	VLNEXT
extern cc_t termLiteralNextChar;
# else
#  define termLiteralNextChar	new_tc.c_cc[VLNEXT]
# endif
# ifndef	VSTART
extern cc_t termStartChar;
# else
#  define termStartChar		new_tc.c_cc[VSTART]
# endif
# ifndef	VSTOP
extern cc_t termStopChar;
# else
#  define termStopChar		new_tc.c_cc[VSTOP]
# endif
# ifndef	VEOL
extern cc_t termForw1Char;
# else
#  define termForw1Char		new_tc.c_cc[VEOL]
# endif
# ifndef	VEOL2
extern cc_t termForw2Char;
# else
#  define termForw2Char		new_tc.c_cc[VEOL]
# endif
# ifndef	VSTATUS
extern cc_t termAytChar;
#else
#  define termAytChar		new_tc.c_cc[VSTATUS]
#endif

# if defined(__STDC__)
#  define termEofCharp		&termEofChar
#  define termEraseCharp	&termEraseChar
#  define termIntCharp		&termIntChar
#  define termKillCharp		&termKillChar
#  define termQuitCharp		&termQuitChar
#  define termSuspCharp		&termSuspChar
#  define termFlushCharp	&termFlushChar
#  define termWerasCharp	&termWerasChar
#  define termRprntCharp	&termRprntChar
#  define termLiteralNextCharp	&termLiteralNextChar
#  define termStartCharp	&termStartChar
#  define termStopCharp		&termStopChar
#  define termForw1Charp	&termForw1Char
#  define termForw2Charp	&termForw2Char
#  define termAytCharp		&termAytChar
# else
	/* Work around a compiler bug */
#  define termEofCharp		0
#  define termEraseCharp	0
#  define termIntCharp		0
#  define termKillCharp		0
#  define termQuitCharp		0
#  define termSuspCharp		0
#  define termFlushCharp	0
#  define termWerasCharp	0
#  define termRprntCharp	0
#  define termLiteralNextCharp	0
#  define termStartCharp	0
#  define termStopCharp		0
#  define termForw1Charp	0
#  define termForw2Charp	0
#  define termAytCharp		0
# endif
#endif


/* Ring buffer structures which are shared */

extern Ring
    netoring,
    netiring,
    ttyoring,
    ttyiring;

extern void
    xmitAO(void),
    xmitEC(void),
    xmitEL(void);
Commit	Line	Data
b7080c8e A	1	/*
	2	* Copyright (c) 1988, 1990, 1993
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)externs.h 8.3 (Berkeley) 5/30/95
7ba0088d	34	* $FreeBSD: src/crypto/telnet/telnet/externs.h,v 1.4.2.2 2002/04/13 10:59:08 markm Exp $
b7080c8e A	35	*/
	36
	37	#ifndef BSD
	38	# define BSD 43
	39	#endif
	40
	41	/*
7ba0088d	42	* ucb stdio.h defines BSD as something weird
b7080c8e A	43	*/
	44	#if defined(sun) && defined(__svr4__)
	45	#define BSD 43
	46	#endif
	47
	48	#ifndef USE_TERMIO
	49	# if BSD > 43 \|\| defined(SYSV_TERMIO)
	50	# define USE_TERMIO
	51	# endif
	52	#endif
	53
	54	#include <stdio.h>
	55	#include <setjmp.h>
b7080c8e	56	#include <sys/ioctl.h>
7ba0088d	57	#include <errno.h>
b7080c8e A	58	#ifdef USE_TERMIO
b7080c8e A	59	# ifndef VINTR
7ba0088d	60	# include <sys/termios.h>
b7080c8e	61	# endif
7ba0088d	62	# define termio termios
b7080c8e A	63	#endif
	64	#if defined(NO_CC_T) \|\| !defined(USE_TERMIO)
	65	# if !defined(USE_TERMIO)
	66	typedef char cc_t;
	67	# else
	68	typedef unsigned char cc_t;
	69	# endif
	70	#endif
	71
b7080c8e	72	#include <string.h>
7ba0088d A	73
	74	#if defined(IPSEC)
	75	#include <netinet6/ipsec.h>
	76	#if defined(IPSEC_POLICY_IPSEC)
	77	extern char *ipsec_policy_in;
	78	extern char *ipsec_policy_out;
	79	#endif
b7080c8e A	80	#endif
	81
	82	#ifndef _POSIX_VDISABLE
	83	# ifdef sun
	84	# include <sys/param.h> /* pick up VDISABLE definition, mayby */
	85	# endif
	86	# ifdef VDISABLE
	87	# define _POSIX_VDISABLE VDISABLE
	88	# else
	89	# define _POSIX_VDISABLE ((cc_t)'\377')
	90	# endif
	91	#endif
	92
	93	#define SUBBUFSIZE 256
	94
b7080c8e A	95	#if !defined(P)
	96	# ifdef __STDC__
	97	# define P(x) x
	98	# else
	99	# define P(x) ()
	100	# endif
	101	#endif
	102
	103	extern int
	104	autologin, /* Autologin enabled */
	105	skiprc, /* Don't process the ~/.telnetrc file */
	106	eight, /* use eight bit mode (binary in and/or out */
7ba0088d	107	family, /* address family of peer */
b7080c8e A	108	flushout, /* flush output */
	109	connected, /* Are we connected to the other side? */
	110	globalmode, /* Mode tty should be in */
b7080c8e A	111	telnetport, /* Are we connected to the telnet port? */
	112	localflow, /* Flow control handled locally */
	113	restartany, /* If flow control, restart output on any character */
	114	localchars, /* we recognize interrupt/quit */
	115	donelclchars, /* the user has set "localchars" */
	116	showoptions,
	117	net, /* Network file descriptor */
	118	tin, /* Terminal input file descriptor */
	119	tout, /* Terminal output file descriptor */
	120	crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
	121	autoflush, /* flush output when interrupting? */
	122	autosynch, /* send interrupt characters with SYNCH? */
	123	SYNCHing, /* Is the stream in telnet SYNCH mode? */
	124	donebinarytoggle, /* the user has put us in binary */
	125	dontlecho, /* do we suppress local echoing right now? */
	126	crmod,
	127	netdata, /* Print out network data flow */
	128	prettydump, /* Print "netdata" output in user readable format */
b7080c8e	129	termdata, /* Print out terminal data flow */
7ba0088d A	130	debug, /* Debug level */
	131	doaddrlookup, /* do a reverse lookup? */
	132	clienteof; /* Client received EOF */
b7080c8e A	133
	134	extern cc_t escape; /* Escape to command mode */
	135	extern cc_t rlogin; /* Rlogin mode escape character */
	136	#ifdef KLUDGELINEMODE
	137	extern cc_t echoc; /* Toggle local echoing */
	138	#endif
	139
	140	extern char
	141	prompt; / Prompt for command. */
	142
	143	extern char
	144	doopt[],
	145	dont[],
	146	will[],
	147	wont[],
	148	options[], /* All the little options */
	149	hostname; / Who are we connected to? */
	150	#ifdef ENCRYPTION
7ba0088d A	151	extern void (encrypt_output)(unsigned char , int);
7ba0088d A	152	extern int (*decrypt_input)(int);
b7080c8e A	153	#endif /* ENCRYPTION */
	154
	155	/*
	156	* We keep track of each side of the option negotiation.
	157	*/
	158
	159	#define MY_STATE_WILL 0x01
	160	#define MY_WANT_STATE_WILL 0x02
	161	#define MY_STATE_DO 0x04
	162	#define MY_WANT_STATE_DO 0x08
	163
	164	/*
	165	* Macros to check the current state of things
	166	*/
	167
	168	#define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
	169	#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
	170	#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
	171	#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
	172
	173	#define my_state_is_dont(opt) (!my_state_is_do(opt))
	174	#define my_state_is_wont(opt) (!my_state_is_will(opt))
	175	#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
	176	#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
	177
	178	#define set_my_state_do(opt) {options[opt] \|= MY_STATE_DO;}
	179	#define set_my_state_will(opt) {options[opt] \|= MY_STATE_WILL;}
	180	#define set_my_want_state_do(opt) {options[opt] \|= MY_WANT_STATE_DO;}
	181	#define set_my_want_state_will(opt) {options[opt] \|= MY_WANT_STATE_WILL;}
	182
	183	#define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;}
	184	#define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;}
	185	#define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;}
	186	#define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;}
	187
	188	/*
	189	* Make everything symetrical
	190	*/
	191
	192	#define HIS_STATE_WILL MY_STATE_DO
	193	#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
	194	#define HIS_STATE_DO MY_STATE_WILL
	195	#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
	196
	197	#define his_state_is_do my_state_is_will
	198	#define his_state_is_will my_state_is_do
	199	#define his_want_state_is_do my_want_state_is_will
	200	#define his_want_state_is_will my_want_state_is_do
	201
	202	#define his_state_is_dont my_state_is_wont
	203	#define his_state_is_wont my_state_is_dont
	204	#define his_want_state_is_dont my_want_state_is_wont
	205	#define his_want_state_is_wont my_want_state_is_dont
	206
	207	#define set_his_state_do set_my_state_will
	208	#define set_his_state_will set_my_state_do
	209	#define set_his_want_state_do set_my_want_state_will
	210	#define set_his_want_state_will set_my_want_state_do
	211
	212	#define set_his_state_dont set_my_state_wont
	213	#define set_his_state_wont set_my_state_dont
	214	#define set_his_want_state_dont set_my_want_state_wont
	215	#define set_his_want_state_wont set_my_want_state_dont
	216
7ba0088d A	217	#if defined(USE_TERMIO)
	218	#define SIG_FUNC_RET void
	219	#else
	220	#define SIG_FUNC_RET int
	221	#endif
	222
	223	#ifdef SIGINFO
	224	extern SIG_FUNC_RET
	225	ayt_status(void);
	226	#endif
b7080c8e A	227
	228	extern FILE
	229	NetTrace; / Where debugging output goes */
	230	extern unsigned char
	231	NetTraceFile[]; /* Name of file where debugging output goes */
	232	extern void
7ba0088d	233	SetNetTrace(char ); / Function to change where debugging goes */
b7080c8e A	234
	235	extern jmp_buf
	236	peerdied,
	237	toplevel; /* For error conditions. */
	238
	239	extern void
7ba0088d A	240	command(int, const char *, int),
	241	Dump(char, unsigned char *, int),
	242	env_init(void),
	243	Exit(int),
	244	ExitString(const char *, int),
	245	init_network(void),
	246	init_sys(void),
	247	init_telnet(void),
	248	init_terminal(void),
	249	intp(void),
	250	optionstatus(void),
	251	printoption(const char *, int, int),
	252	printsub(char, unsigned char *, int),
	253	quit(void),
	254	sendabort(void),
	255	sendbrk(void),
	256	sendeof(void),
	257	sendsusp(void),
	258	sendnaws(void),
	259	sendayt(void),
	260	setconnmode(int),
	261	setcommandmode(void),
	262	set_escape_char(char *s),
	263	setneturg(void),
	264	sys_telnet_init(void),
	265	telnet(char *),
	266	tel_enter_binary(int),
	267	tel_leave_binary(int),
	268	TerminalFlushOutput(void),
	269	TerminalNewMode(int),
	270	TerminalRestoreState(void),
	271	TerminalSaveState(void),
	272	TerminalDefaultChars(void),
	273	TerminalSpeeds(long , long ),
	274	tninit(void),
	275	upcase(char *),
	276	willoption(int),
	277	wontoption(int);
b7080c8e A	278
b7080c8e A	279	extern void
7ba0088d A	280	send_do(int, int),
	281	send_dont(int, int),
	282	send_will(int, int),
	283	send_wont(int, int);
b7080c8e A	284
b7080c8e A	285	extern void
7ba0088d A	286	lm_will(unsigned char *, int),
	287	lm_wont(unsigned char *, int),
	288	lm_do(unsigned char *, int),
	289	lm_dont(unsigned char *, int),
	290	lm_mode(unsigned char *, int, int);
b7080c8e A	291
b7080c8e A	292	extern void
7ba0088d A	293	slc_init(void),
	294	slcstate(void),
	295	slc_mode_export(void),
	296	slc_mode_import(int),
	297	slc_import(int),
	298	slc_export(void),
	299	slc(unsigned char *, int),
	300	slc_check(void),
	301	slc_start_reply(void),
	302	slc_add_reply(unsigned char, unsigned char, cc_t),
	303	slc_end_reply(void);
b7080c8e	304	extern int
7ba0088d A	305	getconnmode(void),
	306	opt_welldefined(const char *),
	307	NetClose(int),
	308	netflush(void),
	309	process_rings(int, int, int, int, int, int),
	310	rlogin_susp(void),
	311	SetSockOpt(int, int, int, int),
	312	slc_update(void),
	313	stilloob(void),
	314	telrcv(void),
	315	TerminalRead(char *, int),
	316	TerminalWrite(char *, int),
	317	TerminalAutoFlush(void),
	318	TerminalWindowSize(long , long ),
	319	TerminalSpecialChars(int),
	320	tn(int, char **),
	321	ttyflush(int);
b7080c8e A	322
b7080c8e A	323	extern void
7ba0088d A	324	env_opt(unsigned char *, int),
	325	env_opt_start(void),
	326	env_opt_start_info(void),
	327	env_opt_add(unsigned char *),
	328	env_opt_end(int);
b7080c8e A	329
b7080c8e A	330	extern unsigned char
7ba0088d A	331	*env_default(int, int),
7ba0088d A	332	env_getvalue(const unsigned char );
b7080c8e A	333
b7080c8e A	334	extern int
7ba0088d A	335	get_status(char *),
7ba0088d A	336	dosynch(char *);
b7080c8e A	337
b7080c8e A	338	extern cc_t
7ba0088d	339	*tcval(int);
b7080c8e A	340
	341	#ifndef USE_TERMIO
	342
	343	extern struct tchars ntc;
	344	extern struct ltchars nltc;
	345	extern struct sgttyb nttyb;
	346
	347	# define termEofChar ntc.t_eofc
	348	# define termEraseChar nttyb.sg_erase
	349	# define termFlushChar nltc.t_flushc
	350	# define termIntChar ntc.t_intrc
	351	# define termKillChar nttyb.sg_kill
	352	# define termLiteralNextChar nltc.t_lnextc
	353	# define termQuitChar ntc.t_quitc
	354	# define termSuspChar nltc.t_suspc
	355	# define termRprntChar nltc.t_rprntc
	356	# define termWerasChar nltc.t_werasc
	357	# define termStartChar ntc.t_startc
	358	# define termStopChar ntc.t_stopc
	359	# define termForw1Char ntc.t_brkc
	360	extern cc_t termForw2Char;
	361	extern cc_t termAytChar;
	362
	363	# define termEofCharp (cc_t *)&ntc.t_eofc
	364	# define termEraseCharp (cc_t *)&nttyb.sg_erase
	365	# define termFlushCharp (cc_t *)&nltc.t_flushc
	366	# define termIntCharp (cc_t *)&ntc.t_intrc
	367	# define termKillCharp (cc_t *)&nttyb.sg_kill
	368	# define termLiteralNextCharp (cc_t *)&nltc.t_lnextc
	369	# define termQuitCharp (cc_t *)&ntc.t_quitc
	370	# define termSuspCharp (cc_t *)&nltc.t_suspc
	371	# define termRprntCharp (cc_t *)&nltc.t_rprntc
	372	# define termWerasCharp (cc_t *)&nltc.t_werasc
	373	# define termStartCharp (cc_t *)&ntc.t_startc
	374	# define termStopCharp (cc_t *)&ntc.t_stopc
	375	# define termForw1Charp (cc_t *)&ntc.t_brkc
	376	# define termForw2Charp (cc_t *)&termForw2Char
	377	# define termAytCharp (cc_t *)&termAytChar
	378
	379	# else
	380
	381	extern struct termio new_tc;
	382
	383	# define termEofChar new_tc.c_cc[VEOF]
	384	# define termEraseChar new_tc.c_cc[VERASE]
	385	# define termIntChar new_tc.c_cc[VINTR]
	386	# define termKillChar new_tc.c_cc[VKILL]
	387	# define termQuitChar new_tc.c_cc[VQUIT]
	388
	389	# ifndef VSUSP
	390	extern cc_t termSuspChar;
	391	# else
	392	# define termSuspChar new_tc.c_cc[VSUSP]
	393	# endif
	394	# if defined(VFLUSHO) && !defined(VDISCARD)
	395	# define VDISCARD VFLUSHO
	396	# endif
	397	# ifndef VDISCARD
	398	extern cc_t termFlushChar;
	399	# else
	400	# define termFlushChar new_tc.c_cc[VDISCARD]
	401	# endif
	402	# ifndef VWERASE
	403	extern cc_t termWerasChar;
404	# else
405	# define termWerasChar new_tc.c_cc[VWERASE]
406	# endif
407	# ifndef VREPRINT
408	extern cc_t termRprntChar;
409	# else
410	# define termRprntChar new_tc.c_cc[VREPRINT]
411	# endif
412	# ifndef VLNEXT
413	extern cc_t termLiteralNextChar;
414	# else
415	# define termLiteralNextChar new_tc.c_cc[VLNEXT]
416	# endif
417	# ifndef VSTART
418	extern cc_t termStartChar;
419	# else
420	# define termStartChar new_tc.c_cc[VSTART]
421	# endif
422	# ifndef VSTOP
423	extern cc_t termStopChar;
424	# else
425	# define termStopChar new_tc.c_cc[VSTOP]
426	# endif
427	# ifndef VEOL
428	extern cc_t termForw1Char;
429	# else
430	# define termForw1Char new_tc.c_cc[VEOL]
431	# endif
432	# ifndef VEOL2
433	extern cc_t termForw2Char;
434	# else
435	# define termForw2Char new_tc.c_cc[VEOL]
436	# endif
437	# ifndef VSTATUS
438	extern cc_t termAytChar;
439	#else
440	# define termAytChar new_tc.c_cc[VSTATUS]
441	#endif
442
7ba0088d	443	# if defined(__STDC__)
b7080c8e A	444	# define termEofCharp &termEofChar
	445	# define termEraseCharp &termEraseChar
	446	# define termIntCharp &termIntChar
	447	# define termKillCharp &termKillChar
	448	# define termQuitCharp &termQuitChar
	449	# define termSuspCharp &termSuspChar
	450	# define termFlushCharp &termFlushChar
	451	# define termWerasCharp &termWerasChar
	452	# define termRprntCharp &termRprntChar
	453	# define termLiteralNextCharp &termLiteralNextChar
	454	# define termStartCharp &termStartChar
	455	# define termStopCharp &termStopChar
	456	# define termForw1Charp &termForw1Char
	457	# define termForw2Charp &termForw2Char
	458	# define termAytCharp &termAytChar
	459	# else
	460	/* Work around a compiler bug */
	461	# define termEofCharp 0
	462	# define termEraseCharp 0
	463	# define termIntCharp 0
	464	# define termKillCharp 0
	465	# define termQuitCharp 0
	466	# define termSuspCharp 0
	467	# define termFlushCharp 0
	468	# define termWerasCharp 0
	469	# define termRprntCharp 0
	470	# define termLiteralNextCharp 0
	471	# define termStartCharp 0
	472	# define termStopCharp 0
	473	# define termForw1Charp 0
	474	# define termForw2Charp 0
	475	# define termAytCharp 0
	476	# endif
	477	#endif
	478
	479
	480	/* Ring buffer structures which are shared */
	481
	482	extern Ring
	483	netoring,
	484	netiring,
	485	ttyoring,
	486	ttyiring;
	487
b7080c8e	488	extern void
7ba0088d A	489	xmitAO(void),
	490	xmitEC(void),
	491	xmitEL(void);