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externs.h revision 1.7
      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  *	from: @(#)externs.h	8.3 (Berkeley) 5/30/95
     34  *	$NetBSD: externs.h,v 1.7 1996/02/24 07:32:00 jtk Exp $
     35  */
     36 
     37 #ifndef	BSD
     38 # define BSD 43
     39 #endif
     40 
     41 /*
     42  * ucb stdio.h defines BSD as something wierd
     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 <stdlib.h>
     56 #include <setjmp.h>
     57 #if defined(CRAY) && !defined(NO_BSD_SETJMP)
     58 #include <bsdsetjmp.h>
     59 #endif
     60 #ifndef	FILIO_H
     61 #include <sys/ioctl.h>
     62 #else
     63 #include <sys/filio.h>
     64 #endif
     65 #ifdef CRAY
     66 # include <errno.h>
     67 #endif /* CRAY */
     68 #ifdef	USE_TERMIO
     69 # ifndef	VINTR
     70 #  ifdef SYSV_TERMIO
     71 #   include <sys/termio.h>
     72 #  else
     73 #   include <sys/termios.h>
     74 #   define termio termios
     75 #  endif
     76 # endif
     77 #endif
     78 #if defined(NO_CC_T) || !defined(USE_TERMIO)
     79 # if !defined(USE_TERMIO)
     80 typedef char cc_t;
     81 # else
     82 typedef unsigned char cc_t;
     83 # endif
     84 #endif
     85 
     86 #ifndef	NO_STRING_H
     87 #include <string.h>
     88 #else
     89 #include <strings.h>
     90 #endif
     91 
     92 #ifndef	_POSIX_VDISABLE
     93 # ifdef sun
     94 #  include <sys/param.h>	/* pick up VDISABLE definition, mayby */
     95 # endif
     96 # ifdef VDISABLE
     97 #  define _POSIX_VDISABLE VDISABLE
     98 # else
     99 #  define _POSIX_VDISABLE ((cc_t)'\377')
    100 # endif
    101 #endif
    102 
    103 #define	SUBBUFSIZE	256
    104 
    105 #ifndef CRAY
    106 extern int errno;		/* outside this world */
    107 #endif /* !CRAY */
    108 
    109 #include <sys/cdefs.h>
    110 #define P __P
    111 
    112 extern int
    113     autologin,		/* Autologin enabled */
    114     skiprc,		/* Don't process the ~/.telnetrc file */
    115     eight,		/* use eight bit mode (binary in and/or out */
    116     flushout,		/* flush output */
    117     connected,		/* Are we connected to the other side? */
    118     globalmode,		/* Mode tty should be in */
    119     In3270,		/* Are we in 3270 mode? */
    120     telnetport,		/* Are we connected to the telnet port? */
    121     localflow,		/* Flow control handled locally */
    122     restartany,		/* If flow control, restart output on any character */
    123     localchars,		/* we recognize interrupt/quit */
    124     donelclchars,	/* the user has set "localchars" */
    125     showoptions,
    126     net,		/* Network file descriptor */
    127     tin,		/* Terminal input file descriptor */
    128     tout,		/* Terminal output file descriptor */
    129     crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
    130     autoflush,		/* flush output when interrupting? */
    131     autosynch,		/* send interrupt characters with SYNCH? */
    132     SYNCHing,		/* Is the stream in telnet SYNCH mode? */
    133     donebinarytoggle,	/* the user has put us in binary */
    134     dontlecho,		/* do we suppress local echoing right now? */
    135     crmod,
    136     netdata,		/* Print out network data flow */
    137     prettydump,		/* Print "netdata" output in user readable format */
    138 #if	defined(unix)
    139 #if	defined(TN3270)
    140     cursesdata,		/* Print out curses data flow */
    141     apitrace,		/* Trace API transactions */
    142 #endif	/* defined(TN3270) */
    143     termdata,		/* Print out terminal data flow */
    144 #endif	/* defined(unix) */
    145     debug,		/* Debug level */
    146     clienteof;		/* Client received EOF */
    147 
    148 extern cc_t escape;	/* Escape to command mode */
    149 extern cc_t rlogin;	/* Rlogin mode escape character */
    150 #ifdef	KLUDGELINEMODE
    151 extern cc_t echoc;	/* Toggle local echoing */
    152 #endif
    153 
    154 extern char
    155     *prompt;		/* Prompt for command. */
    156 
    157 extern char
    158     doopt[],
    159     dont[],
    160     will[],
    161     wont[],
    162     options[],		/* All the little options */
    163     *hostname;		/* Who are we connected to? */
    164 
    165 /*
    166  * We keep track of each side of the option negotiation.
    167  */
    168 
    169 #define	MY_STATE_WILL		0x01
    170 #define	MY_WANT_STATE_WILL	0x02
    171 #define	MY_STATE_DO		0x04
    172 #define	MY_WANT_STATE_DO	0x08
    173 
    174 /*
    175  * Macros to check the current state of things
    176  */
    177 
    178 #define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
    179 #define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
    180 #define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
    181 #define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)
    182 
    183 #define	my_state_is_dont(opt)		(!my_state_is_do(opt))
    184 #define	my_state_is_wont(opt)		(!my_state_is_will(opt))
    185 #define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
    186 #define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))
    187 
    188 #define	set_my_state_do(opt)		{options[opt] |= MY_STATE_DO;}
    189 #define	set_my_state_will(opt)		{options[opt] |= MY_STATE_WILL;}
    190 #define	set_my_want_state_do(opt)	{options[opt] |= MY_WANT_STATE_DO;}
    191 #define	set_my_want_state_will(opt)	{options[opt] |= MY_WANT_STATE_WILL;}
    192 
    193 #define	set_my_state_dont(opt)		{options[opt] &= ~MY_STATE_DO;}
    194 #define	set_my_state_wont(opt)		{options[opt] &= ~MY_STATE_WILL;}
    195 #define	set_my_want_state_dont(opt)	{options[opt] &= ~MY_WANT_STATE_DO;}
    196 #define	set_my_want_state_wont(opt)	{options[opt] &= ~MY_WANT_STATE_WILL;}
    197 
    198 /*
    199  * Make everything symetrical
    200  */
    201 
    202 #define	HIS_STATE_WILL			MY_STATE_DO
    203 #define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
    204 #define HIS_STATE_DO			MY_STATE_WILL
    205 #define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL
    206 
    207 #define	his_state_is_do			my_state_is_will
    208 #define	his_state_is_will		my_state_is_do
    209 #define his_want_state_is_do		my_want_state_is_will
    210 #define his_want_state_is_will		my_want_state_is_do
    211 
    212 #define	his_state_is_dont		my_state_is_wont
    213 #define	his_state_is_wont		my_state_is_dont
    214 #define his_want_state_is_dont		my_want_state_is_wont
    215 #define his_want_state_is_wont		my_want_state_is_dont
    216 
    217 #define	set_his_state_do		set_my_state_will
    218 #define	set_his_state_will		set_my_state_do
    219 #define	set_his_want_state_do		set_my_want_state_will
    220 #define	set_his_want_state_will		set_my_want_state_do
    221 
    222 #define	set_his_state_dont		set_my_state_wont
    223 #define	set_his_state_wont		set_my_state_dont
    224 #define	set_his_want_state_dont		set_my_want_state_wont
    225 #define	set_his_want_state_wont		set_my_want_state_dont
    226 
    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
    233     SetNetTrace P((char *));	/* Function to change where debugging goes */
    234 
    235 extern jmp_buf
    236     peerdied,
    237     toplevel;		/* For error conditions. */
    238 
    239 extern void
    240     command P((int, char *, int)),
    241     Dump P((int, unsigned char *, int)),
    242     init_3270 P((void)),
    243     printoption P((char *, int, int)),
    244     printsub P((int, unsigned char *, int)),
    245     sendnaws P((void)),
    246     setconnmode P((int)),
    247     setcommandmode P((void)),
    248     setneturg P((void)),
    249     sys_telnet_init P((void)),
    250     telnet P((char *)),
    251     tel_enter_binary P((int)),
    252     TerminalFlushOutput P((void)),
    253     TerminalNewMode P((int)),
    254     TerminalRestoreState P((void)),
    255     TerminalSaveState P((void)),
    256     tninit P((void)),
    257     upcase P((char *)),
    258     willoption P((int)),
    259     wontoption P((int));
    260 
    261 extern void
    262     send_do P((int, int)),
    263     send_dont P((int, int)),
    264     send_will P((int, int)),
    265     send_wont P((int, int));
    266 
    267 extern void
    268     lm_will P((unsigned char *, int)),
    269     lm_wont P((unsigned char *, int)),
    270     lm_do P((unsigned char *, int)),
    271     lm_dont P((unsigned char *, int)),
    272     lm_mode P((unsigned char *, int, int));
    273 
    274 extern void
    275     slc_init P((void)),
    276     slcstate P((void)),
    277     slc_mode_export P((void)),
    278     slc_mode_import P((int)),
    279     slc_import P((int)),
    280     slc_export P((void)),
    281     slc P((unsigned char *, int)),
    282     slc_check P((void)),
    283     slc_start_reply P((void)),
    284     slc_add_reply P((int, int, int)),
    285     slc_end_reply P((void));
    286 extern int
    287     slc_update P((void));
    288 
    289 extern void
    290     env_opt P((unsigned char *, int)),
    291     env_opt_start P((void)),
    292     env_opt_start_info P((void)),
    293     env_opt_add P((unsigned char *)),
    294     env_opt_end P((int));
    295 
    296 extern unsigned char
    297     *env_default P((int, int)),
    298     *env_getvalue P((unsigned char *));
    299 
    300 extern int
    301     get_status P((void)),
    302     dosynch P((void));
    303 
    304 extern cc_t
    305     *tcval P((int));
    306 
    307 #ifndef	USE_TERMIO
    308 
    309 extern struct	tchars ntc;
    310 extern struct	ltchars nltc;
    311 extern struct	sgttyb nttyb;
    312 
    313 # define termEofChar		ntc.t_eofc
    314 # define termEraseChar		nttyb.sg_erase
    315 # define termFlushChar		nltc.t_flushc
    316 # define termIntChar		ntc.t_intrc
    317 # define termKillChar		nttyb.sg_kill
    318 # define termLiteralNextChar	nltc.t_lnextc
    319 # define termQuitChar		ntc.t_quitc
    320 # define termSuspChar		nltc.t_suspc
    321 # define termRprntChar		nltc.t_rprntc
    322 # define termWerasChar		nltc.t_werasc
    323 # define termStartChar		ntc.t_startc
    324 # define termStopChar		ntc.t_stopc
    325 # define termForw1Char		ntc.t_brkc
    326 extern cc_t termForw2Char;
    327 extern cc_t termAytChar;
    328 
    329 # define termEofCharp		(cc_t *)&ntc.t_eofc
    330 # define termEraseCharp		(cc_t *)&nttyb.sg_erase
    331 # define termFlushCharp		(cc_t *)&nltc.t_flushc
    332 # define termIntCharp		(cc_t *)&ntc.t_intrc
    333 # define termKillCharp		(cc_t *)&nttyb.sg_kill
    334 # define termLiteralNextCharp	(cc_t *)&nltc.t_lnextc
    335 # define termQuitCharp		(cc_t *)&ntc.t_quitc
    336 # define termSuspCharp		(cc_t *)&nltc.t_suspc
    337 # define termRprntCharp		(cc_t *)&nltc.t_rprntc
    338 # define termWerasCharp		(cc_t *)&nltc.t_werasc
    339 # define termStartCharp		(cc_t *)&ntc.t_startc
    340 # define termStopCharp		(cc_t *)&ntc.t_stopc
    341 # define termForw1Charp		(cc_t *)&ntc.t_brkc
    342 # define termForw2Charp		(cc_t *)&termForw2Char
    343 # define termAytCharp		(cc_t *)&termAytChar
    344 
    345 # else
    346 
    347 extern struct	termio new_tc;
    348 
    349 # define termEofChar		new_tc.c_cc[VEOF]
    350 # define termEraseChar		new_tc.c_cc[VERASE]
    351 # define termIntChar		new_tc.c_cc[VINTR]
    352 # define termKillChar		new_tc.c_cc[VKILL]
    353 # define termQuitChar		new_tc.c_cc[VQUIT]
    354 
    355 # ifndef	VSUSP
    356 extern cc_t termSuspChar;
    357 # else
    358 #  define termSuspChar		new_tc.c_cc[VSUSP]
    359 # endif
    360 # if	defined(VFLUSHO) && !defined(VDISCARD)
    361 #  define VDISCARD VFLUSHO
    362 # endif
    363 # ifndef	VDISCARD
    364 extern cc_t termFlushChar;
    365 # else
    366 #  define termFlushChar		new_tc.c_cc[VDISCARD]
    367 # endif
    368 # ifndef VWERASE
    369 extern cc_t termWerasChar;
    370 # else
    371 #  define termWerasChar		new_tc.c_cc[VWERASE]
    372 # endif
    373 # ifndef	VREPRINT
    374 extern cc_t termRprntChar;
    375 # else
    376 #  define termRprntChar		new_tc.c_cc[VREPRINT]
    377 # endif
    378 # ifndef	VLNEXT
    379 extern cc_t termLiteralNextChar;
    380 # else
    381 #  define termLiteralNextChar	new_tc.c_cc[VLNEXT]
    382 # endif
    383 # ifndef	VSTART
    384 extern cc_t termStartChar;
    385 # else
    386 #  define termStartChar		new_tc.c_cc[VSTART]
    387 # endif
    388 # ifndef	VSTOP
    389 extern cc_t termStopChar;
    390 # else
    391 #  define termStopChar		new_tc.c_cc[VSTOP]
    392 # endif
    393 # ifndef	VEOL
    394 extern cc_t termForw1Char;
    395 # else
    396 #  define termForw1Char		new_tc.c_cc[VEOL]
    397 # endif
    398 # ifndef	VEOL2
    399 extern cc_t termForw2Char;
    400 # else
    401 #  define termForw2Char		new_tc.c_cc[VEOL]
    402 # endif
    403 # ifndef	VSTATUS
    404 extern cc_t termAytChar;
    405 #else
    406 #  define termAytChar		new_tc.c_cc[VSTATUS]
    407 #endif
    408 
    409 # if !defined(CRAY) || defined(__STDC__)
    410 #  define termEofCharp		&termEofChar
    411 #  define termEraseCharp	&termEraseChar
    412 #  define termIntCharp		&termIntChar
    413 #  define termKillCharp		&termKillChar
    414 #  define termQuitCharp		&termQuitChar
    415 #  define termSuspCharp		&termSuspChar
    416 #  define termFlushCharp	&termFlushChar
    417 #  define termWerasCharp	&termWerasChar
    418 #  define termRprntCharp	&termRprntChar
    419 #  define termLiteralNextCharp	&termLiteralNextChar
    420 #  define termStartCharp	&termStartChar
    421 #  define termStopCharp		&termStopChar
    422 #  define termForw1Charp	&termForw1Char
    423 #  define termForw2Charp	&termForw2Char
    424 #  define termAytCharp		&termAytChar
    425 # else
    426 	/* Work around a compiler bug */
    427 #  define termEofCharp		0
    428 #  define termEraseCharp	0
    429 #  define termIntCharp		0
    430 #  define termKillCharp		0
    431 #  define termQuitCharp		0
    432 #  define termSuspCharp		0
    433 #  define termFlushCharp	0
    434 #  define termWerasCharp	0
    435 #  define termRprntCharp	0
    436 #  define termLiteralNextCharp	0
    437 #  define termStartCharp	0
    438 #  define termStopCharp		0
    439 #  define termForw1Charp	0
    440 #  define termForw2Charp	0
    441 #  define termAytCharp		0
    442 # endif
    443 #endif
    444 
    445 
    446 /* Ring buffer structures which are shared */
    447 
    448 extern Ring
    449     netoring,
    450     netiring,
    451     ttyoring,
    452     ttyiring;
    453 
    454 /* Tn3270 section */
    455 #if	defined(TN3270)
    456 
    457 extern int
    458     HaveInput,		/* Whether an asynchronous I/O indication came in */
    459     noasynchtty,	/* Don't do signals on I/O (SIGURG, SIGIO) */
    460     noasynchnet,	/* Don't do signals on I/O (SIGURG, SIGIO) */
    461     sigiocount,		/* Count of SIGIO receptions */
    462     shell_active;	/* Subshell is active */
    463 
    464 extern char
    465     *Ibackp,		/* Oldest byte of 3270 data */
    466     Ibuf[],		/* 3270 buffer */
    467     *Ifrontp,		/* Where next 3270 byte goes */
    468     tline[],
    469     *transcom;		/* Transparent command */
    470 
    471 extern int
    472     settranscom P((int, char**));
    473 
    474 extern void
    475     inputAvailable P((int));
    476 #endif	/* defined(TN3270) */
    477