externs.h revision 1.16 1 /* $NetBSD: externs.h,v 1.16 2000/01/21 17:08:36 mycroft Exp $ */
2
3 /*
4 * Copyright (c) 1988, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)externs.h 8.3 (Berkeley) 5/30/95
36 */
37
38 #ifndef BSD
39 # define BSD 43
40 #endif
41
42 /*
43 * ucb stdio.h defines BSD as something wierd
44 */
45 #if defined(sun) && defined(__svr4__) && !defined(BSD)
46 #define BSD 43
47 #endif
48
49 #ifndef USE_TERMIO
50 # if BSD > 43 || defined(SYSV_TERMIO)
51 # define USE_TERMIO
52 # endif
53 #endif
54
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <setjmp.h>
58 #if defined(CRAY) && !defined(NO_BSD_SETJMP)
59 #include <bsdsetjmp.h>
60 #endif
61 #ifndef FILIO_H
62 #include <sys/ioctl.h>
63 #else
64 #include <sys/filio.h>
65 #endif
66 #include <errno.h>
67 #ifdef USE_TERMIO
68 # ifndef VINTR
69 # ifdef SYSV_TERMIO
70 # include <sys/termio.h>
71 # else
72 # include <sys/termios.h>
73 # define termio termios
74 # endif
75 # else
76 # if defined(TCSANOW)
77 # define termio termios
78 # endif
79 # endif
80 #endif
81 #if defined(NO_CC_T) || !defined(USE_TERMIO)
82 # if !defined(USE_TERMIO)
83 typedef char cc_t;
84 # else
85 typedef unsigned char cc_t;
86 # endif
87 #endif
88
89 #ifndef NO_STRING_H
90 #include <string.h>
91 #else
92 #include <strings.h>
93 #endif
94
95 #if defined(IPSEC)
96 #include <netinet6/ipsec.h>
97 #if defined(IPSEC_POLICY_IPSEC)
98 extern char *ipsec_policy;
99 #endif
100 #endif
101
102 #ifndef _POSIX_VDISABLE
103 # ifdef sun
104 # include <sys/param.h> /* pick up VDISABLE definition, mayby */
105 # endif
106 # ifdef VDISABLE
107 # define _POSIX_VDISABLE VDISABLE
108 # else
109 # define _POSIX_VDISABLE ((cc_t)'\377')
110 # endif
111 #endif
112
113 #define SUBBUFSIZE 256
114
115 #include <sys/cdefs.h>
116 #define P __P
117
118 extern int
119 autologin, /* Autologin enabled */
120 skiprc, /* Don't process the ~/.telnetrc file */
121 eight, /* use eight bit mode (binary in and/or out */
122 flushout, /* flush output */
123 connected, /* Are we connected to the other side? */
124 globalmode, /* Mode tty should be in */
125 In3270, /* Are we in 3270 mode? */
126 telnetport, /* Are we connected to the telnet port? */
127 localflow, /* Flow control handled locally */
128 restartany, /* If flow control, restart output on any character */
129 localchars, /* we recognize interrupt/quit */
130 donelclchars, /* the user has set "localchars" */
131 showoptions,
132 net, /* Network file descriptor */
133 tin, /* Terminal input file descriptor */
134 tout, /* Terminal output file descriptor */
135 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
136 autoflush, /* flush output when interrupting? */
137 autosynch, /* send interrupt characters with SYNCH? */
138 SYNCHing, /* Is the stream in telnet SYNCH mode? */
139 donebinarytoggle, /* the user has put us in binary */
140 dontlecho, /* do we suppress local echoing right now? */
141 crmod,
142 netdata, /* Print out network data flow */
143 prettydump, /* Print "netdata" output in user readable format */
144 #if defined(unix)
145 #if defined(TN3270)
146 cursesdata, /* Print out curses data flow */
147 apitrace, /* Trace API transactions */
148 #endif /* defined(TN3270) */
149 termdata, /* Print out terminal data flow */
150 #endif /* defined(unix) */
151 debug, /* Debug level */
152 doaddrlookup, /* do a reverse address lookup? */
153 clienteof; /* Client received EOF */
154
155 extern cc_t escape; /* Escape to command mode */
156 extern cc_t rlogin; /* Rlogin mode escape character */
157 #ifdef KLUDGELINEMODE
158 extern cc_t echoc; /* Toggle local echoing */
159 #endif
160
161 extern char
162 *prompt; /* Prompt for command. */
163
164 extern char
165 doopt[],
166 dont[],
167 will[],
168 wont[],
169 options[], /* All the little options */
170 *hostname; /* Who are we connected to? */
171
172 /*
173 * We keep track of each side of the option negotiation.
174 */
175
176 #define MY_STATE_WILL 0x01
177 #define MY_WANT_STATE_WILL 0x02
178 #define MY_STATE_DO 0x04
179 #define MY_WANT_STATE_DO 0x08
180
181 /*
182 * Macros to check the current state of things
183 */
184
185 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
186 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
187 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
188 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
189
190 #define my_state_is_dont(opt) (!my_state_is_do(opt))
191 #define my_state_is_wont(opt) (!my_state_is_will(opt))
192 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
193 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
194
195 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;}
196 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;}
197 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;}
198 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;}
199
200 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;}
201 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;}
202 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;}
203 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;}
204
205 /*
206 * Make everything symetrical
207 */
208
209 #define HIS_STATE_WILL MY_STATE_DO
210 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
211 #define HIS_STATE_DO MY_STATE_WILL
212 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
213
214 #define his_state_is_do my_state_is_will
215 #define his_state_is_will my_state_is_do
216 #define his_want_state_is_do my_want_state_is_will
217 #define his_want_state_is_will my_want_state_is_do
218
219 #define his_state_is_dont my_state_is_wont
220 #define his_state_is_wont my_state_is_dont
221 #define his_want_state_is_dont my_want_state_is_wont
222 #define his_want_state_is_wont my_want_state_is_dont
223
224 #define set_his_state_do set_my_state_will
225 #define set_his_state_will set_my_state_do
226 #define set_his_want_state_do set_my_want_state_will
227 #define set_his_want_state_will set_my_want_state_do
228
229 #define set_his_state_dont set_my_state_wont
230 #define set_his_state_wont set_my_state_dont
231 #define set_his_want_state_dont set_my_want_state_wont
232 #define set_his_want_state_wont set_my_want_state_dont
233
234
235 extern FILE
236 *NetTrace; /* Where debugging output goes */
237 extern unsigned char
238 NetTraceFile[]; /* Name of file where debugging output goes */
239
240 extern jmp_buf
241 peerdied,
242 toplevel; /* For error conditions. */
243
244
245 /* authenc.c */
246 int net_write P((unsigned char *, int));
247 void net_encrypt P((void));
248 int telnet_spin P((void));
249 char *telnet_getenv P((char *));
250 char *telnet_gets P((char *, char *, int, int));
251
252 /* commands.c */
253 int send_tncmd P((void (*)(int, int), char *, char *));
254 void _setlist_init P((void));
255 void set_escape_char P((char *));
256 int set_mode P((int));
257 int clear_mode P((int));
258 int modehelp P((int));
259 int suspend P((int, char *[]));
260 int shell P((int, char *[]));
261 int quit P((int, char *[]));
262 int logout P((int, char *[]));
263 int env_cmd P((int, char *[]));
264 struct env_lst *env_find P((unsigned char *));
265 void env_init P((void));
266 struct env_lst *env_define P((unsigned char *, unsigned char *));
267 struct env_lst *env_undefine P((unsigned char *, unsigned char *));
268 struct env_lst *env_export P((unsigned char *, unsigned char *));
269 struct env_lst *env_unexport P((unsigned char *, unsigned char *));
270 struct env_lst *env_send P((unsigned char *, unsigned char *));
271 struct env_lst *env_list P((unsigned char *, unsigned char *));
272 unsigned char *env_default P((int, int ));
273 unsigned char *env_getvalue P((unsigned char *));
274 void env_varval P((unsigned char *));
275 int auth_cmd P((int, char *[]));
276 int ayt_status P((void));
277 int tn P((int, char *[]));
278 void command P((int, char *, int));
279 void cmdrc P((const char *, const char *));
280 struct addrinfo;
281 int sourceroute P((struct addrinfo *, char *, char **, int *, int*));
282
283 /* main.c */
284 void tninit P((void));
285 void usage P((void));
286
287 /* network.c */
288 void init_network P((void));
289 int stilloob P((void));
290 void setneturg P((void));
291 int netflush P((void));
292
293 /* sys_bsd.c */
294 void init_sys P((void));
295 int TerminalWrite P((char *, int));
296 int TerminalRead P((unsigned char *, int));
297 int TerminalAutoFlush P((void));
298 int TerminalSpecialChars P((int));
299 void TerminalFlushOutput P((void));
300 void TerminalSaveState P((void));
301 cc_t *tcval P((int));
302 void TerminalDefaultChars P((void));
303 void TerminalRestoreState P((void));
304 void TerminalNewMode P((int));
305 void TerminalSpeeds P((long *, long *));
306 int TerminalWindowSize P((long *, long *));
307 int NetClose P((int));
308 void NetNonblockingIO P((int, int));
309 void NetSigIO P((int, int));
310 void NetSetPgrp P((int));
311 void sys_telnet_init P((void));
312 int process_rings P((int , int , int , int , int , int));
313
314 /* telnet.c */
315 void init_telnet P((void));
316 void send_do P((int, int ));
317 void send_dont P((int, int ));
318 void send_will P((int, int ));
319 void send_wont P((int, int ));
320 void willoption P((int));
321 void wontoption P((int));
322 char **mklist P((char *, char *));
323 int is_unique P((char *, char **, char **));
324 int setup_term P((char *, int, int *));
325 char *gettermname P((void));
326 void lm_will P((unsigned char *, int));
327 void lm_wont P((unsigned char *, int));
328 void lm_do P((unsigned char *, int));
329 void lm_dont P((unsigned char *, int));
330 void lm_mode P((unsigned char *, int, int ));
331 void slc_init P((void));
332 void slcstate P((void));
333 void slc_mode_export P((int));
334 void slc_mode_import P((int));
335 void slc_import P((int));
336 void slc_export P((void));
337 void slc P((unsigned char *, int));
338 void slc_check P((void));
339 void slc_start_reply P((void));
340 void slc_add_reply P((unsigned int, unsigned int, cc_t));
341 void slc_end_reply P((void));
342 int slc_update P((void));
343 void env_opt P((unsigned char *, int));
344 void env_opt_start P((void));
345 void env_opt_start_info P((void));
346 void env_opt_add P((unsigned char *));
347 int opt_welldefined P((char *));
348 void env_opt_end P((int));
349 int telrcv P((void));
350 int rlogin_susp P((void));
351 int Scheduler P((int));
352 void telnet P((const char *));
353 void xmitAO P((void));
354 void xmitEL P((void));
355 void xmitEC P((void));
356 int dosynch P((char *));
357 int get_status P((char *));
358 void intp P((void));
359 void sendbrk P((void));
360 void sendabort P((void));
361 void sendsusp P((void));
362 void sendeof P((void));
363 void sendayt P((void));
364 void sendnaws P((void));
365 void tel_enter_binary P((int));
366 void tel_leave_binary P((int));
367
368 /* terminal.c */
369 void init_terminal P((void));
370 int ttyflush P((int));
371 int getconnmode P((void));
372 void setconnmode P((int));
373 void setcommandmode P((void));
374
375 /* utilities.c */
376 void upcase P((char *));
377 int SetSockOpt P((int, int , int , int ));
378 void SetNetTrace P((char *));
379 void Dump P((int, unsigned char *, int));
380 void printoption P((char *, int, int ));
381 void optionstatus P((void));
382 void printsub P((int, unsigned char *, int));
383 void EmptyTerminal P((void));
384 void SetForExit P((void));
385 void Exit P((int)) __attribute__((__noreturn__));
386 void ExitString P((char *, int)) __attribute__((__noreturn__));
387
388 #ifndef USE_TERMIO
389
390 extern struct tchars ntc;
391 extern struct ltchars nltc;
392 extern struct sgttyb nttyb;
393
394 # define termEofChar ntc.t_eofc
395 # define termEraseChar nttyb.sg_erase
396 # define termFlushChar nltc.t_flushc
397 # define termIntChar ntc.t_intrc
398 # define termKillChar nttyb.sg_kill
399 # define termLiteralNextChar nltc.t_lnextc
400 # define termQuitChar ntc.t_quitc
401 # define termSuspChar nltc.t_suspc
402 # define termRprntChar nltc.t_rprntc
403 # define termWerasChar nltc.t_werasc
404 # define termStartChar ntc.t_startc
405 # define termStopChar ntc.t_stopc
406 # define termForw1Char ntc.t_brkc
407 extern cc_t termForw2Char;
408 extern cc_t termAytChar;
409
410 # define termEofCharp (cc_t *)&ntc.t_eofc
411 # define termEraseCharp (cc_t *)&nttyb.sg_erase
412 # define termFlushCharp (cc_t *)&nltc.t_flushc
413 # define termIntCharp (cc_t *)&ntc.t_intrc
414 # define termKillCharp (cc_t *)&nttyb.sg_kill
415 # define termLiteralNextCharp (cc_t *)&nltc.t_lnextc
416 # define termQuitCharp (cc_t *)&ntc.t_quitc
417 # define termSuspCharp (cc_t *)&nltc.t_suspc
418 # define termRprntCharp (cc_t *)&nltc.t_rprntc
419 # define termWerasCharp (cc_t *)&nltc.t_werasc
420 # define termStartCharp (cc_t *)&ntc.t_startc
421 # define termStopCharp (cc_t *)&ntc.t_stopc
422 # define termForw1Charp (cc_t *)&ntc.t_brkc
423 # define termForw2Charp (cc_t *)&termForw2Char
424 # define termAytCharp (cc_t *)&termAytChar
425
426 # else
427
428 extern struct termio new_tc;
429
430 # define termEofChar new_tc.c_cc[VEOF]
431 # define termEraseChar new_tc.c_cc[VERASE]
432 # define termIntChar new_tc.c_cc[VINTR]
433 # define termKillChar new_tc.c_cc[VKILL]
434 # define termQuitChar new_tc.c_cc[VQUIT]
435
436 # ifndef VSUSP
437 extern cc_t termSuspChar;
438 # else
439 # define termSuspChar new_tc.c_cc[VSUSP]
440 # endif
441 # if defined(VFLUSHO) && !defined(VDISCARD)
442 # define VDISCARD VFLUSHO
443 # endif
444 # ifndef VDISCARD
445 extern cc_t termFlushChar;
446 # else
447 # define termFlushChar new_tc.c_cc[VDISCARD]
448 # endif
449 # ifndef VWERASE
450 extern cc_t termWerasChar;
451 # else
452 # define termWerasChar new_tc.c_cc[VWERASE]
453 # endif
454 # ifndef VREPRINT
455 extern cc_t termRprntChar;
456 # else
457 # define termRprntChar new_tc.c_cc[VREPRINT]
458 # endif
459 # ifndef VLNEXT
460 extern cc_t termLiteralNextChar;
461 # else
462 # define termLiteralNextChar new_tc.c_cc[VLNEXT]
463 # endif
464 # ifndef VSTART
465 extern cc_t termStartChar;
466 # else
467 # define termStartChar new_tc.c_cc[VSTART]
468 # endif
469 # ifndef VSTOP
470 extern cc_t termStopChar;
471 # else
472 # define termStopChar new_tc.c_cc[VSTOP]
473 # endif
474 # ifndef VEOL
475 extern cc_t termForw1Char;
476 # else
477 # define termForw1Char new_tc.c_cc[VEOL]
478 # endif
479 # ifndef VEOL2
480 extern cc_t termForw2Char;
481 # else
482 # define termForw2Char new_tc.c_cc[VEOL]
483 # endif
484 # ifndef VSTATUS
485 extern cc_t termAytChar;
486 #else
487 # define termAytChar new_tc.c_cc[VSTATUS]
488 #endif
489
490 # if !defined(CRAY) || defined(__STDC__)
491 # define termEofCharp &termEofChar
492 # define termEraseCharp &termEraseChar
493 # define termIntCharp &termIntChar
494 # define termKillCharp &termKillChar
495 # define termQuitCharp &termQuitChar
496 # define termSuspCharp &termSuspChar
497 # define termFlushCharp &termFlushChar
498 # define termWerasCharp &termWerasChar
499 # define termRprntCharp &termRprntChar
500 # define termLiteralNextCharp &termLiteralNextChar
501 # define termStartCharp &termStartChar
502 # define termStopCharp &termStopChar
503 # define termForw1Charp &termForw1Char
504 # define termForw2Charp &termForw2Char
505 # define termAytCharp &termAytChar
506 # else
507 /* Work around a compiler bug */
508 # define termEofCharp 0
509 # define termEraseCharp 0
510 # define termIntCharp 0
511 # define termKillCharp 0
512 # define termQuitCharp 0
513 # define termSuspCharp 0
514 # define termFlushCharp 0
515 # define termWerasCharp 0
516 # define termRprntCharp 0
517 # define termLiteralNextCharp 0
518 # define termStartCharp 0
519 # define termStopCharp 0
520 # define termForw1Charp 0
521 # define termForw2Charp 0
522 # define termAytCharp 0
523 # endif
524 #endif
525
526
527 /* Tn3270 section */
528 #if defined(TN3270)
529
530 extern int
531 HaveInput, /* Whether an asynchronous I/O indication came in */
532 noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */
533 noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */
534 sigiocount, /* Count of SIGIO receptions */
535 shell_active; /* Subshell is active */
536
537 extern char
538 *Ibackp, /* Oldest byte of 3270 data */
539 Ibuf[], /* 3270 buffer */
540 *Ifrontp, /* Where next 3270 byte goes */
541 tline[],
542 *transcom; /* Transparent command */
543
544 /* tn3270.c */
545 void init_3270 P((void));
546 int DataToNetwork P((char *, int, int));
547 void inputAvailable P((int));
548 void outputPurge P((void));
549 int DataToTerminal P((char *, int));
550 int Push3270 P((void));
551 void Finish3270 P((void));
552 void StringToTerminal P((char *));
553 void _putchar P((int));
554 void SetIn3270 P((void));
555 int tn3270_ttype P((void));
556 int settranscom P((int, char *[]));
557 int shell_continue P((void));
558 int DataFromTerminal __P((char *, int));
559 int DataFromNetwork __P((char *, int, int));
560 void ConnectScreen __P((void));
561 int DoTerminalOutput __P((void));
562
563 #endif /* defined(TN3270) */
564