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

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * 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
 */

#ifndef	BSD
# define BSD 43
#endif

/*
 * ucb stdio.h defines BSD as something wierd
 */
#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>
#if defined(CRAY) && !defined(NO_BSD_SETJMP)
#include <bsdsetjmp.h>
#endif
#ifndef	FILIO_H
#include <sys/ioctl.h>
#else
#include <sys/filio.h>
#endif
#ifdef CRAY
# include <errno.h>
#endif /* CRAY */
#ifdef	USE_TERMIO
# ifndef	VINTR
#  ifdef SYSV_TERMIO
#   include <sys/termio.h>
#  else
#   include <sys/termios.h>
#   define termio termios
#  endif
# endif
#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

#ifndef	NO_STRING_H
#include <string.h>
#else
#include <strings.h>
#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

#ifndef CRAY
extern int errno;		/* outside this world */
#endif /* !CRAY */

#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 */
    flushout,		/* flush output */
    connected,		/* Are we connected to the other side? */
    globalmode,		/* Mode tty should be in */
    In3270,		/* Are we in 3270 mode? */
    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 */
#if	defined(unix) || defined(__APPLE__)
#if	defined(TN3270)
    cursesdata,		/* Print out curses data flow */
    apitrace,		/* Trace API transactions */
#endif	/* defined(TN3270) */
    termdata,		/* Print out terminal data flow */
#endif	/* defined(unix) || defined(__APPLE__) */
    debug;		/* Debug level */

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) P((unsigned char *, int));
extern int (*decrypt_input) P((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


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

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

extern void
    command P((int, char *, int)),
    Dump P((int, unsigned char *, int)),
    init_3270 P((void)),
    printoption P((char *, int, int)),
    printsub P((int, unsigned char *, int)),
    sendnaws P((void)),
    setconnmode P((int)),
    setcommandmode P((void)),
    setneturg P((void)),
    sys_telnet_init P((void)),
    telnet P((char *)),
    tel_enter_binary P((int)),
    TerminalFlushOutput P((void)),
    TerminalNewMode P((int)),
    TerminalRestoreState P((void)),
    TerminalSaveState P((void)),
    tninit P((void)),
    upcase P((char *)),
    willoption P((int)),
    wontoption P((int));

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

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

extern void
    slc_init P((void)),
    slcstate P((void)),
    slc_mode_export P((void)),
    slc_mode_import P((int)),
    slc_import P((int)),
    slc_export P((void)),
    slc P((unsigned char *, int)),
    slc_check P((void)),
    slc_start_reply P((void)),
    slc_add_reply P((int, int, int)),
    slc_end_reply P((void));
extern int
    slc_update P((void));

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

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

extern int
    get_status P((void)),
    dosynch P((void));

extern cc_t
    *tcval P((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(CRAY) || 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;

/* Tn3270 section */
#if	defined(TN3270)

extern int
    HaveInput,		/* Whether an asynchronous I/O indication came in */
    noasynchtty,	/* Don't do signals on I/O (SIGURG, SIGIO) */
    noasynchnet,	/* Don't do signals on I/O (SIGURG, SIGIO) */
    sigiocount,		/* Count of SIGIO receptions */
    shell_active;	/* Subshell is active */

extern char
    *Ibackp,		/* Oldest byte of 3270 data */
    Ibuf[],		/* 3270 buffer */
    *Ifrontp,		/* Where next 3270 byte goes */
    tline[],
    *transcom;		/* Transparent command */

extern int
    settranscom P((int, char**));

extern void
    inputAvailable P((int));
#endif	/* defined(TN3270) */
Commit	Line	Data
b7080c8e A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/*
	25	* Copyright (c) 1988, 1990, 1993
	26	* The Regents of the University of California. All rights reserved.
	27	*
	28	* Redistribution and use in source and binary forms, with or without
	29	* modification, are permitted provided that the following conditions
	30	* are met:
	31	* 1. Redistributions of source code must retain the above copyright
	32	* notice, this list of conditions and the following disclaimer.
	33	* 2. Redistributions in binary form must reproduce the above copyright
	34	* notice, this list of conditions and the following disclaimer in the
	35	* documentation and/or other materials provided with the distribution.
	36	* 3. All advertising materials mentioning features or use of this software
	37	* must display the following acknowledgement:
	38	* This product includes software developed by the University of
	39	* California, Berkeley and its contributors.
	40	* 4. Neither the name of the University nor the names of its contributors
	41	* may be used to endorse or promote products derived from this software
	42	* without specific prior written permission.
	43	*
	44	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	45	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	46	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	47	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	48	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	49	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	50	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	51	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	52	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	53	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	54	* SUCH DAMAGE.
	55	*
	56	* @(#)externs.h 8.3 (Berkeley) 5/30/95
	57	*/
	58
	59	#ifndef BSD
	60	# define BSD 43
	61	#endif
	62
	63	/*
	64	* ucb stdio.h defines BSD as something wierd
65	*/
66	#if defined(sun) && defined(__svr4__)
67	#define BSD 43
68	#endif
69
70	#ifndef USE_TERMIO
71	# if BSD > 43 \|\| defined(SYSV_TERMIO)
72	# define USE_TERMIO
73	# endif
74	#endif
75
76	#include <stdio.h>
77	#include <setjmp.h>
78	#if defined(CRAY) && !defined(NO_BSD_SETJMP)
79	#include <bsdsetjmp.h>
80	#endif
81	#ifndef FILIO_H
82	#include <sys/ioctl.h>
83	#else
84	#include <sys/filio.h>
85	#endif
86	#ifdef CRAY
87	# include <errno.h>
88	#endif /* CRAY */
89	#ifdef USE_TERMIO
90	# ifndef VINTR
91	# ifdef SYSV_TERMIO
92	# include <sys/termio.h>
93	# else
94	# include <sys/termios.h>
95	# define termio termios
96	# endif
97	# endif
98	#endif
99	#if defined(NO_CC_T) \|\| !defined(USE_TERMIO)
100	# if !defined(USE_TERMIO)
101	typedef char cc_t;
102	# else
103	typedef unsigned char cc_t;
104	# endif
105	#endif
106
107	#ifndef NO_STRING_H
108	#include <string.h>
109	#else
110	#include <strings.h>
111	#endif
112
113	#ifndef _POSIX_VDISABLE
114	# ifdef sun
115	# include <sys/param.h> /* pick up VDISABLE definition, mayby */
116	# endif
117	# ifdef VDISABLE
118	# define _POSIX_VDISABLE VDISABLE
119	# else
120	# define _POSIX_VDISABLE ((cc_t)'\377')
121	# endif
122	#endif
123
124	#define SUBBUFSIZE 256
125
126	#ifndef CRAY
127	extern int errno; /* outside this world */
128	#endif /* !CRAY */
129
130	#if !defined(P)
131	# ifdef __STDC__
132	# define P(x) x
133	# else
134	# define P(x) ()
135	# endif
136	#endif
137
138	extern int
139	autologin, /* Autologin enabled */
140	skiprc, /* Don't process the ~/.telnetrc file */
141	eight, /* use eight bit mode (binary in and/or out */
142	flushout, /* flush output */
143	connected, /* Are we connected to the other side? */
144	globalmode, /* Mode tty should be in */
145	In3270, /* Are we in 3270 mode? */
146	telnetport, /* Are we connected to the telnet port? */
147	localflow, /* Flow control handled locally */
148	restartany, /* If flow control, restart output on any character */
149	localchars, /* we recognize interrupt/quit */
150	donelclchars, /* the user has set "localchars" */
151	showoptions,
152	net, /* Network file descriptor */
153	tin, /* Terminal input file descriptor */
154	tout, /* Terminal output file descriptor */
155	crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
156	autoflush, /* flush output when interrupting? */
157	autosynch, /* send interrupt characters with SYNCH? */
158	SYNCHing, /* Is the stream in telnet SYNCH mode? */
159	donebinarytoggle, /* the user has put us in binary */
160	dontlecho, /* do we suppress local echoing right now? */
161	crmod,
162	netdata, /* Print out network data flow */
163	prettydump, /* Print "netdata" output in user readable format */
164	#if defined(unix) \|\| defined(__APPLE__)
165	#if defined(TN3270)
166	cursesdata, /* Print out curses data flow */
167	apitrace, /* Trace API transactions */
168	#endif /* defined(TN3270) */
169	termdata, /* Print out terminal data flow */
170	#endif /* defined(unix) \|\| defined(__APPLE__) */
171	debug; /* Debug level */
172
173	extern cc_t escape; /* Escape to command mode */
174	extern cc_t rlogin; /* Rlogin mode escape character */
175	#ifdef KLUDGELINEMODE
176	extern cc_t echoc; /* Toggle local echoing */
177	#endif
178
179	extern char
180	prompt; / Prompt for command. */
181
182	extern char
183	doopt[],
184	dont[],
185	will[],
186	wont[],
187	options[], /* All the little options */
188	hostname; / Who are we connected to? */
189	#ifdef ENCRYPTION
190	extern void (encrypt_output) P((unsigned char , int));
191	extern int (*decrypt_input) P((int));
192	#endif /* ENCRYPTION */
193
194	/*
195	* We keep track of each side of the option negotiation.
196	*/
197
198	#define MY_STATE_WILL 0x01
199	#define MY_WANT_STATE_WILL 0x02
200	#define MY_STATE_DO 0x04
201	#define MY_WANT_STATE_DO 0x08
202
203	/*
204	* Macros to check the current state of things
205	*/
206
207	#define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
208	#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
209	#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
210	#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
211
212	#define my_state_is_dont(opt) (!my_state_is_do(opt))
213	#define my_state_is_wont(opt) (!my_state_is_will(opt))
214	#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
215	#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
216
217	#define set_my_state_do(opt) {options[opt] \|= MY_STATE_DO;}
218	#define set_my_state_will(opt) {options[opt] \|= MY_STATE_WILL;}
219	#define set_my_want_state_do(opt) {options[opt] \|= MY_WANT_STATE_DO;}
220	#define set_my_want_state_will(opt) {options[opt] \|= MY_WANT_STATE_WILL;}
221
222	#define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;}
223	#define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;}
224	#define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;}
225	#define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;}
226
227	/*
228	* Make everything symetrical
229	*/
230
231	#define HIS_STATE_WILL MY_STATE_DO
232	#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
233	#define HIS_STATE_DO MY_STATE_WILL
234	#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
235
236	#define his_state_is_do my_state_is_will
237	#define his_state_is_will my_state_is_do
238	#define his_want_state_is_do my_want_state_is_will
239	#define his_want_state_is_will my_want_state_is_do
240
241	#define his_state_is_dont my_state_is_wont
242	#define his_state_is_wont my_state_is_dont
243	#define his_want_state_is_dont my_want_state_is_wont
244	#define his_want_state_is_wont my_want_state_is_dont
245
246	#define set_his_state_do set_my_state_will
247	#define set_his_state_will set_my_state_do
248	#define set_his_want_state_do set_my_want_state_will
249	#define set_his_want_state_will set_my_want_state_do
250
251	#define set_his_state_dont set_my_state_wont
252	#define set_his_state_wont set_my_state_dont
253	#define set_his_want_state_dont set_my_want_state_wont
254	#define set_his_want_state_wont set_my_want_state_dont
255
256
257	extern FILE
258	NetTrace; / Where debugging output goes */
259	extern unsigned char
260	NetTraceFile[]; /* Name of file where debugging output goes */
261	extern void
262	SetNetTrace P((char )); / Function to change where debugging goes */
263
264	extern jmp_buf
265	peerdied,
266	toplevel; /* For error conditions. */
267
268	extern void
269	command P((int, char *, int)),
270	Dump P((int, unsigned char *, int)),
271	init_3270 P((void)),
272	printoption P((char *, int, int)),
273	printsub P((int, unsigned char *, int)),
274	sendnaws P((void)),
275	setconnmode P((int)),
276	setcommandmode P((void)),
277	setneturg P((void)),
278	sys_telnet_init P((void)),
279	telnet P((char *)),
280	tel_enter_binary P((int)),
281	TerminalFlushOutput P((void)),
282	TerminalNewMode P((int)),
283	TerminalRestoreState P((void)),
284	TerminalSaveState P((void)),
285	tninit P((void)),
286	upcase P((char *)),
287	willoption P((int)),
288	wontoption P((int));
289
290	extern void
291	send_do P((int, int)),
292	send_dont P((int, int)),
293	send_will P((int, int)),
294	send_wont P((int, int));
295
296	extern void
297	lm_will P((unsigned char *, int)),
298	lm_wont P((unsigned char *, int)),
299	lm_do P((unsigned char *, int)),
300	lm_dont P((unsigned char *, int)),
301	lm_mode P((unsigned char *, int, int));
302
303	extern void
304	slc_init P((void)),
305	slcstate P((void)),
306	slc_mode_export P((void)),
307	slc_mode_import P((int)),
308	slc_import P((int)),
309	slc_export P((void)),
310	slc P((unsigned char *, int)),
311	slc_check P((void)),
312	slc_start_reply P((void)),
313	slc_add_reply P((int, int, int)),
314	slc_end_reply P((void));
315	extern int
316	slc_update P((void));
317
318	extern void
319	env_opt P((unsigned char *, int)),
320	env_opt_start P((void)),
321	env_opt_start_info P((void)),
322	env_opt_add P((unsigned char *)),
323	env_opt_end P((int));
324
325	extern unsigned char
326	*env_default P((int, int)),
327	env_getvalue P((unsigned char ));
328
329	extern int
330	get_status P((void)),
331	dosynch P((void));
332
333	extern cc_t
334	*tcval P((int));
335
336	#ifndef USE_TERMIO
337
338	extern struct tchars ntc;
339	extern struct ltchars nltc;
340	extern struct sgttyb nttyb;
341
342	# define termEofChar ntc.t_eofc
343	# define termEraseChar nttyb.sg_erase
344	# define termFlushChar nltc.t_flushc
345	# define termIntChar ntc.t_intrc
346	# define termKillChar nttyb.sg_kill
347	# define termLiteralNextChar nltc.t_lnextc
348	# define termQuitChar ntc.t_quitc
349	# define termSuspChar nltc.t_suspc
350	# define termRprntChar nltc.t_rprntc
351	# define termWerasChar nltc.t_werasc
352	# define termStartChar ntc.t_startc
353	# define termStopChar ntc.t_stopc
354	# define termForw1Char ntc.t_brkc
355	extern cc_t termForw2Char;
356	extern cc_t termAytChar;
357
358	# define termEofCharp (cc_t *)&ntc.t_eofc
359	# define termEraseCharp (cc_t *)&nttyb.sg_erase
360	# define termFlushCharp (cc_t *)&nltc.t_flushc
361	# define termIntCharp (cc_t *)&ntc.t_intrc
362	# define termKillCharp (cc_t *)&nttyb.sg_kill
363	# define termLiteralNextCharp (cc_t *)&nltc.t_lnextc
364	# define termQuitCharp (cc_t *)&ntc.t_quitc
365	# define termSuspCharp (cc_t *)&nltc.t_suspc
366	# define termRprntCharp (cc_t *)&nltc.t_rprntc
367	# define termWerasCharp (cc_t *)&nltc.t_werasc
368	# define termStartCharp (cc_t *)&ntc.t_startc
369	# define termStopCharp (cc_t *)&ntc.t_stopc
370	# define termForw1Charp (cc_t *)&ntc.t_brkc
371	# define termForw2Charp (cc_t *)&termForw2Char
372	# define termAytCharp (cc_t *)&termAytChar
373
374	# else
375
376	extern struct termio new_tc;
377
378	# define termEofChar new_tc.c_cc[VEOF]
379	# define termEraseChar new_tc.c_cc[VERASE]
380	# define termIntChar new_tc.c_cc[VINTR]
381	# define termKillChar new_tc.c_cc[VKILL]
382	# define termQuitChar new_tc.c_cc[VQUIT]
383
384	# ifndef VSUSP
385	extern cc_t termSuspChar;
386	# else
387	# define termSuspChar new_tc.c_cc[VSUSP]
388	# endif
389	# if defined(VFLUSHO) && !defined(VDISCARD)
390	# define VDISCARD VFLUSHO
391	# endif
392	# ifndef VDISCARD
393	extern cc_t termFlushChar;
394	# else
395	# define termFlushChar new_tc.c_cc[VDISCARD]
396	# endif
397	# ifndef VWERASE
398	extern cc_t termWerasChar;
399	# else
400	# define termWerasChar new_tc.c_cc[VWERASE]
401	# endif
402	# ifndef VREPRINT
403	extern cc_t termRprntChar;
404	# else
405	# define termRprntChar new_tc.c_cc[VREPRINT]
406	# endif
407	# ifndef VLNEXT
408	extern cc_t termLiteralNextChar;
409	# else
410	# define termLiteralNextChar new_tc.c_cc[VLNEXT]
411	# endif
412	# ifndef VSTART
413	extern cc_t termStartChar;
414	# else
415	# define termStartChar new_tc.c_cc[VSTART]
416	# endif
417	# ifndef VSTOP
418	extern cc_t termStopChar;
419	# else
420	# define termStopChar new_tc.c_cc[VSTOP]
421	# endif
422	# ifndef VEOL
423	extern cc_t termForw1Char;
424	# else
425	# define termForw1Char new_tc.c_cc[VEOL]
426	# endif
427	# ifndef VEOL2
428	extern cc_t termForw2Char;
429	# else
430	# define termForw2Char new_tc.c_cc[VEOL]
431	# endif
432	# ifndef VSTATUS
433	extern cc_t termAytChar;
434	#else
435	# define termAytChar new_tc.c_cc[VSTATUS]
436	#endif
437
438	# if !defined(CRAY) \|\| defined(__STDC__)
439	# define termEofCharp &termEofChar
440	# define termEraseCharp &termEraseChar
441	# define termIntCharp &termIntChar
442	# define termKillCharp &termKillChar
443	# define termQuitCharp &termQuitChar
444	# define termSuspCharp &termSuspChar
445	# define termFlushCharp &termFlushChar
446	# define termWerasCharp &termWerasChar
447	# define termRprntCharp &termRprntChar
448	# define termLiteralNextCharp &termLiteralNextChar
449	# define termStartCharp &termStartChar
450	# define termStopCharp &termStopChar
451	# define termForw1Charp &termForw1Char
452	# define termForw2Charp &termForw2Char
453	# define termAytCharp &termAytChar
454	# else
455	/* Work around a compiler bug */
456	# define termEofCharp 0
457	# define termEraseCharp 0
458	# define termIntCharp 0
459	# define termKillCharp 0
460	# define termQuitCharp 0
461	# define termSuspCharp 0
462	# define termFlushCharp 0
463	# define termWerasCharp 0
464	# define termRprntCharp 0
465	# define termLiteralNextCharp 0
466	# define termStartCharp 0
467	# define termStopCharp 0
468	# define termForw1Charp 0
469	# define termForw2Charp 0
470	# define termAytCharp 0
471	# endif
472	#endif
473
474
475	/* Ring buffer structures which are shared */
476
477	extern Ring
478	netoring,
479	netiring,
480	ttyoring,
481	ttyiring;
482
483	/* Tn3270 section */
484	#if defined(TN3270)
485
486	extern int
487	HaveInput, /* Whether an asynchronous I/O indication came in */
488	noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */
489	noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */
490	sigiocount, /* Count of SIGIO receptions */
491	shell_active; /* Subshell is active */
492
493	extern char
494	Ibackp, / Oldest byte of 3270 data */
495	Ibuf[], /* 3270 buffer */
496	Ifrontp, / Where next 3270 byte goes */
497	tline[],
498	transcom; / Transparent command */
499
500	extern int
501	settranscom P((int, char**));
502
503	extern void
504	inputAvailable P((int));
505	#endif /* defined(TN3270) */