?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Eliminate some dead initialization.
[dragonfly.git] / usr.bin / telnet / utilities.c
blob36be9a2efe9fe5c140e49ac67a28b8298473abbe
1 /*
2 * Copyright (c) 1988, 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 * @(#)utilities.c 8.3 (Berkeley) 5/30/95
34 * $FreeBSD: src/usr.bin/telnet/utilities.c,v 1.3.12.1 2002/04/13 11:07:13 markm Exp $
35 * $DragonFly: src/usr.bin/telnet/utilities.c,v 1.3 2007/11/25 01:28:23 swildner Exp $
36 */
37
38 #define TELOPTS
39 #define TELCMDS
40 #define SLC_NAMES
41 #include <arpa/telnet.h>
42 #include <sys/types.h>
43 #include <sys/socket.h>
44 #include <sys/time.h>
45 #include <ctype.h>
46 #include <stdlib.h>
47 #include <unistd.h>
48
49 #include "general.h"
50
51 #include "fdset.h"
52
53 #include "ring.h"
54
55 #include "defines.h"
56
57 #include "externs.h"
58
59
60 FILE *NetTrace = 0; /* Not in bss, since needs to stay */
61 int prettydump;
62
63 /*
64 * upcase()
65 *
66 * Upcase (in place) the argument.
67 */
68
69 void
70 upcase(char *argument)
71 {
72 int c;
73
74 while ((c = *argument) != 0) {
75 if (islower(c)) {
76 *argument = toupper(c);
77 }
78 argument++;
79 }
80 }
81
82 /*
83 * SetSockOpt()
84 *
85 * Compensate for differences in 4.2 and 4.3 systems.
86 */
87
88 int
89 SetSockOpt(int fd, int level, int option, int yesno)
90 {
91 return setsockopt(fd, level, option,
92 (char *)&yesno, sizeof yesno);
93 }
94 \f
95 /*
96 * The following are routines used to print out debugging information.
97 */
98
99 unsigned char NetTraceFile[256] = "(standard output)";
100
101 void
102 SetNetTrace(char *file)
103 {
104 if (NetTrace && NetTrace != stdout)
105 fclose(NetTrace);
106 if (file && (strcmp(file, "-") != 0)) {
107 NetTrace = fopen(file, "w");
108 if (NetTrace) {
109 strcpy((char *)NetTraceFile, file);
110 return;
111 }
112 fprintf(stderr, "Cannot open %s.\n", file);
113 }
114 NetTrace = stdout;
115 strcpy((char *)NetTraceFile, "(standard output)");
116 }
117
118 void
119 Dump(char direction, unsigned char *buffer, int length)
120 {
121 # define BYTES_PER_LINE 32
122 # define min(x,y) ((x<y)? x:y)
123 unsigned char *pThis;
124 int offset;
125
126 offset = 0;
127
128 while (length) {
129 /* print one line */
130 fprintf(NetTrace, "%c 0x%x\t", direction, offset);
131 pThis = buffer;
132 if (prettydump) {
133 buffer = buffer + min(length, BYTES_PER_LINE/2);
134 while (pThis < buffer) {
135 fprintf(NetTrace, "%c%.2x",
136 (((*pThis)&0xff) == 0xff) ? '*' : ' ',
137 (*pThis)&0xff);
138 pThis++;
139 }
140 length -= BYTES_PER_LINE/2;
141 offset += BYTES_PER_LINE/2;
142 } else {
143 buffer = buffer + min(length, BYTES_PER_LINE);
144 while (pThis < buffer) {
145 fprintf(NetTrace, "%.2x", (*pThis)&0xff);
146 pThis++;
147 }
148 length -= BYTES_PER_LINE;
149 offset += BYTES_PER_LINE;
150 }
151 if (NetTrace == stdout) {
152 fprintf(NetTrace, "\r\n");
153 } else {
154 fprintf(NetTrace, "\n");
155 }
156 if (length < 0) {
157 fflush(NetTrace);
158 return;
159 }
160 /* find next unique line */
161 }
162 fflush(NetTrace);
163 }
164
165
166 void
167 printoption(const char *direction, int cmd, int option)
168 {
169 if (!showoptions)
170 return;
171 if (cmd == IAC) {
172 if (TELCMD_OK(option))
173 fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option));
174 else
175 fprintf(NetTrace, "%s IAC %d", direction, option);
176 } else {
177 const char *fmt;
178 fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" :
179 (cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0;
180 if (fmt) {
181 fprintf(NetTrace, "%s %s ", direction, fmt);
182 if (TELOPT_OK(option))
183 fprintf(NetTrace, "%s", TELOPT(option));
184 else if (option == TELOPT_EXOPL)
185 fprintf(NetTrace, "EXOPL");
186 else
187 fprintf(NetTrace, "%d", option);
188 } else
189 fprintf(NetTrace, "%s %d %d", direction, cmd, option);
190 }
191 if (NetTrace == stdout) {
192 fprintf(NetTrace, "\r\n");
193 fflush(NetTrace);
194 } else {
195 fprintf(NetTrace, "\n");
196 }
197 return;
198 }
199
200 void
201 optionstatus(void)
202 {
203 int i;
204 extern char will_wont_resp[], do_dont_resp[];
205
206 for (i = 0; i < 256; i++) {
207 if (do_dont_resp[i]) {
208 if (TELOPT_OK(i))
209 printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]);
210 else if (TELCMD_OK(i))
211 printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]);
212 else
213 printf("resp DO_DONT %d: %d\n", i,
214 do_dont_resp[i]);
215 if (my_want_state_is_do(i)) {
216 if (TELOPT_OK(i))
217 printf("want DO %s\n", TELOPT(i));
218 else if (TELCMD_OK(i))
219 printf("want DO %s\n", TELCMD(i));
220 else
221 printf("want DO %d\n", i);
222 } else {
223 if (TELOPT_OK(i))
224 printf("want DONT %s\n", TELOPT(i));
225 else if (TELCMD_OK(i))
226 printf("want DONT %s\n", TELCMD(i));
227 else
228 printf("want DONT %d\n", i);
229 }
230 } else {
231 if (my_state_is_do(i)) {
232 if (TELOPT_OK(i))
233 printf(" DO %s\n", TELOPT(i));
234 else if (TELCMD_OK(i))
235 printf(" DO %s\n", TELCMD(i));
236 else
237 printf(" DO %d\n", i);
238 }
239 }
240 if (will_wont_resp[i]) {
241 if (TELOPT_OK(i))
242 printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]);
243 else if (TELCMD_OK(i))
244 printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]);
245 else
246 printf("resp WILL_WONT %d: %d\n",
247 i, will_wont_resp[i]);
248 if (my_want_state_is_will(i)) {
249 if (TELOPT_OK(i))
250 printf("want WILL %s\n", TELOPT(i));
251 else if (TELCMD_OK(i))
252 printf("want WILL %s\n", TELCMD(i));
253 else
254 printf("want WILL %d\n", i);
255 } else {
256 if (TELOPT_OK(i))
257 printf("want WONT %s\n", TELOPT(i));
258 else if (TELCMD_OK(i))
259 printf("want WONT %s\n", TELCMD(i));
260 else
261 printf("want WONT %d\n", i);
262 }
263 } else {
264 if (my_state_is_will(i)) {
265 if (TELOPT_OK(i))
266 printf(" WILL %s\n", TELOPT(i));
267 else if (TELCMD_OK(i))
268 printf(" WILL %s\n", TELCMD(i));
269 else
270 printf(" WILL %d\n", i);
271 }
272 }
273 }
274
275 }
276
277 void
278 printsub(char direction, unsigned char *pointer, int length)
279 {
280 int i;
281 extern int want_status_response;
282
283 if (showoptions || direction == 0 ||
284 (want_status_response && (pointer[0] == TELOPT_STATUS))) {
285 if (direction) {
286 fprintf(NetTrace, "%s IAC SB ",
287 (direction == '<')? "RCVD":"SENT");
288 if (length >= 3) {
289 int j;
290
291 i = pointer[length-2];
292 j = pointer[length-1];
293
294 if (i != IAC || j != SE) {
295 fprintf(NetTrace, "(terminated by ");
296 if (TELOPT_OK(i))
297 fprintf(NetTrace, "%s ", TELOPT(i));
298 else if (TELCMD_OK(i))
299 fprintf(NetTrace, "%s ", TELCMD(i));
300 else
301 fprintf(NetTrace, "%d ", i);
302 if (TELOPT_OK(j))
303 fprintf(NetTrace, "%s", TELOPT(j));
304 else if (TELCMD_OK(j))
305 fprintf(NetTrace, "%s", TELCMD(j));
306 else
307 fprintf(NetTrace, "%d", j);
308 fprintf(NetTrace, ", not IAC SE!) ");
309 }
310 }
311 length -= 2;
312 }
313 if (length < 1) {
314 fprintf(NetTrace, "(Empty suboption??\?)");
315 if (NetTrace == stdout)
316 fflush(NetTrace);
317 return;
318 }
319 switch (pointer[0]) {
320 case TELOPT_TTYPE:
321 fprintf(NetTrace, "TERMINAL-TYPE ");
322 switch (pointer[1]) {
323 case TELQUAL_IS:
324 fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
325 break;
326 case TELQUAL_SEND:
327 fprintf(NetTrace, "SEND");
328 break;
329 default:
330 fprintf(NetTrace,
331 "- unknown qualifier %d (0x%x).",
332 pointer[1], pointer[1]);
333 }
334 break;
335 case TELOPT_TSPEED:
336 fprintf(NetTrace, "TERMINAL-SPEED");
337 if (length < 2) {
338 fprintf(NetTrace, " (empty suboption??\?)");
339 break;
340 }
341 switch (pointer[1]) {
342 case TELQUAL_IS:
343 fprintf(NetTrace, " IS ");
344 fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2);
345 break;
346 default:
347 if (pointer[1] == 1)
348 fprintf(NetTrace, " SEND");
349 else
350 fprintf(NetTrace, " %d (unknown)", pointer[1]);
351 for (i = 2; i < length; i++)
352 fprintf(NetTrace, " ?%d?", pointer[i]);
353 break;
354 }
355 break;
356
357 case TELOPT_LFLOW:
358 fprintf(NetTrace, "TOGGLE-FLOW-CONTROL");
359 if (length < 2) {
360 fprintf(NetTrace, " (empty suboption??\?)");
361 break;
362 }
363 switch (pointer[1]) {
364 case LFLOW_OFF:
365 fprintf(NetTrace, " OFF"); break;
366 case LFLOW_ON:
367 fprintf(NetTrace, " ON"); break;
368 case LFLOW_RESTART_ANY:
369 fprintf(NetTrace, " RESTART-ANY"); break;
370 case LFLOW_RESTART_XON:
371 fprintf(NetTrace, " RESTART-XON"); break;
372 default:
373 fprintf(NetTrace, " %d (unknown)", pointer[1]);
374 }
375 for (i = 2; i < length; i++)
376 fprintf(NetTrace, " ?%d?", pointer[i]);
377 break;
378
379 case TELOPT_NAWS:
380 fprintf(NetTrace, "NAWS");
381 if (length < 2) {
382 fprintf(NetTrace, " (empty suboption??\?)");
383 break;
384 }
385 if (length == 2) {
386 fprintf(NetTrace, " ?%d?", pointer[1]);
387 break;
388 }
389 fprintf(NetTrace, " %d %d (%d)",
390 pointer[1], pointer[2],
391 (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
392 if (length == 4) {
393 fprintf(NetTrace, " ?%d?", pointer[3]);
394 break;
395 }
396 fprintf(NetTrace, " %d %d (%d)",
397 pointer[3], pointer[4],
398 (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
399 for (i = 5; i < length; i++)
400 fprintf(NetTrace, " ?%d?", pointer[i]);
401 break;
402
403
404
405 case TELOPT_LINEMODE:
406 fprintf(NetTrace, "LINEMODE ");
407 if (length < 2) {
408 fprintf(NetTrace, " (empty suboption??\?)");
409 break;
410 }
411 switch (pointer[1]) {
412 case WILL:
413 fprintf(NetTrace, "WILL ");
414 goto common;
415 case WONT:
416 fprintf(NetTrace, "WONT ");
417 goto common;
418 case DO:
419 fprintf(NetTrace, "DO ");
420 goto common;
421 case DONT:
422 fprintf(NetTrace, "DONT ");
423 common:
424 if (length < 3) {
425 fprintf(NetTrace, "(no option??\?)");
426 break;
427 }
428 switch (pointer[2]) {
429 case LM_FORWARDMASK:
430 fprintf(NetTrace, "Forward Mask");
431 for (i = 3; i < length; i++)
432 fprintf(NetTrace, " %x", pointer[i]);
433 break;
434 default:
435 fprintf(NetTrace, "%d (unknown)", pointer[2]);
436 for (i = 3; i < length; i++)
437 fprintf(NetTrace, " %d", pointer[i]);
438 break;
439 }
440 break;
441
442 case LM_SLC:
443 fprintf(NetTrace, "SLC");
444 for (i = 2; i < length - 2; i += 3) {
445 if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
446 fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC]));
447 else
448 fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]);
449 switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
450 case SLC_NOSUPPORT:
451 fprintf(NetTrace, " NOSUPPORT"); break;
452 case SLC_CANTCHANGE:
453 fprintf(NetTrace, " CANTCHANGE"); break;
454 case SLC_VARIABLE:
455 fprintf(NetTrace, " VARIABLE"); break;
456 case SLC_DEFAULT:
457 fprintf(NetTrace, " DEFAULT"); break;
458 }
459 fprintf(NetTrace, "%s%s%s",
460 pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
461 pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
462 pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
463 if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
464 SLC_FLUSHOUT| SLC_LEVELBITS))
465 fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]);
466 fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]);
467 if ((pointer[i+SLC_VALUE] == IAC) &&
468 (pointer[i+SLC_VALUE+1] == IAC))
469 i++;
470 }
471 for (; i < length; i++)
472 fprintf(NetTrace, " ?%d?", pointer[i]);
473 break;
474
475 case LM_MODE:
476 fprintf(NetTrace, "MODE ");
477 if (length < 3) {
478 fprintf(NetTrace, "(no mode??\?)");
479 break;
480 }
481 {
482 char tbuf[64];
483 sprintf(tbuf, "%s%s%s%s%s",
484 pointer[2]&MODE_EDIT ? "|EDIT" : "",
485 pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
486 pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
487 pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
488 pointer[2]&MODE_ACK ? "|ACK" : "");
489 fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0");
490 }
491 if (pointer[2]&~(MODE_MASK))
492 fprintf(NetTrace, " (0x%x)", pointer[2]);
493 for (i = 3; i < length; i++)
494 fprintf(NetTrace, " ?0x%x?", pointer[i]);
495 break;
496 default:
497 fprintf(NetTrace, "%d (unknown)", pointer[1]);
498 for (i = 2; i < length; i++)
499 fprintf(NetTrace, " %d", pointer[i]);
500 }
501 break;
502
503 case TELOPT_STATUS: {
504 const char *cp;
505 int j, k;
506
507 fprintf(NetTrace, "STATUS");
508
509 switch (pointer[1]) {
510 default:
511 if (pointer[1] == TELQUAL_SEND)
512 fprintf(NetTrace, " SEND");
513 else
514 fprintf(NetTrace, " %d (unknown)", pointer[1]);
515 for (i = 2; i < length; i++)
516 fprintf(NetTrace, " ?%d?", pointer[i]);
517 break;
518 case TELQUAL_IS:
519 if (--want_status_response < 0)
520 want_status_response = 0;
521 if (NetTrace == stdout)
522 fprintf(NetTrace, " IS\r\n");
523 else
524 fprintf(NetTrace, " IS\n");
525
526 for (i = 2; i < length; i++) {
527 switch(pointer[i]) {
528 case DO: cp = "DO"; goto common2;
529 case DONT: cp = "DONT"; goto common2;
530 case WILL: cp = "WILL"; goto common2;
531 case WONT: cp = "WONT"; goto common2;
532 common2:
533 i++;
534 if (TELOPT_OK((int)pointer[i]))
535 fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i]));
536 else
537 fprintf(NetTrace, " %s %d", cp, pointer[i]);
538
539 if (NetTrace == stdout)
540 fprintf(NetTrace, "\r\n");
541 else
542 fprintf(NetTrace, "\n");
543 break;
544
545 case SB:
546 fprintf(NetTrace, " SB ");
547 i++;
548 j = k = i;
549 while (j < length) {
550 if (pointer[j] == SE) {
551 if (j+1 == length)
552 break;
553 if (pointer[j+1] == SE)
554 j++;
555 else
556 break;
557 }
558 pointer[k++] = pointer[j++];
559 }
560 printsub(0, &pointer[i], k - i);
561 if (i < length) {
562 fprintf(NetTrace, " SE");
563 i = j;
564 } else
565 i = j - 1;
566
567 if (NetTrace == stdout)
568 fprintf(NetTrace, "\r\n");
569 else
570 fprintf(NetTrace, "\n");
571
572 break;
573
574 default:
575 fprintf(NetTrace, " %d", pointer[i]);
576 break;
577 }
578 }
579 break;
580 }
581 break;
582 }
583
584 case TELOPT_XDISPLOC:
585 fprintf(NetTrace, "X-DISPLAY-LOCATION ");
586 switch (pointer[1]) {
587 case TELQUAL_IS:
588 fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
589 break;
590 case TELQUAL_SEND:
591 fprintf(NetTrace, "SEND");
592 break;
593 default:
594 fprintf(NetTrace, "- unknown qualifier %d (0x%x).",
595 pointer[1], pointer[1]);
596 }
597 break;
598
599 case TELOPT_NEW_ENVIRON:
600 fprintf(NetTrace, "NEW-ENVIRON ");
601 #ifdef OLD_ENVIRON
602 goto env_common1;
603 case TELOPT_OLD_ENVIRON:
604 fprintf(NetTrace, "OLD-ENVIRON");
605 env_common1:
606 #endif
607 switch (pointer[1]) {
608 case TELQUAL_IS:
609 fprintf(NetTrace, "IS ");
610 goto env_common;
611 case TELQUAL_SEND:
612 fprintf(NetTrace, "SEND ");
613 goto env_common;
614 case TELQUAL_INFO:
615 fprintf(NetTrace, "INFO ");
616 env_common:
617 {
618 int noquote = 2;
619 #if defined(ENV_HACK) && defined(OLD_ENVIRON)
620 extern int old_env_var, old_env_value;
621 #endif
622 for (i = 2; i < length; i++ ) {
623 switch (pointer[i]) {
624 case NEW_ENV_VALUE:
625 #ifdef OLD_ENVIRON
626 /* case NEW_ENV_OVAR: */
627 if (pointer[0] == TELOPT_OLD_ENVIRON) {
628 # ifdef ENV_HACK
629 if (old_env_var == OLD_ENV_VALUE)
630 fprintf(NetTrace, "\" (VALUE) " + noquote);
631 else
632 # endif
633 fprintf(NetTrace, "\" VAR " + noquote);
634 } else
635 #endif /* OLD_ENVIRON */
636 fprintf(NetTrace, "\" VALUE " + noquote);
637 noquote = 2;
638 break;
639
640 case NEW_ENV_VAR:
641 #ifdef OLD_ENVIRON
642 /* case OLD_ENV_VALUE: */
643 if (pointer[0] == TELOPT_OLD_ENVIRON) {
644 # ifdef ENV_HACK
645 if (old_env_value == OLD_ENV_VAR)
646 fprintf(NetTrace, "\" (VAR) " + noquote);
647 else
648 # endif
649 fprintf(NetTrace, "\" VALUE " + noquote);
650 } else
651 #endif /* OLD_ENVIRON */
652 fprintf(NetTrace, "\" VAR " + noquote);
653 noquote = 2;
654 break;
655
656 case ENV_ESC:
657 fprintf(NetTrace, "\" ESC " + noquote);
658 noquote = 2;
659 break;
660
661 case ENV_USERVAR:
662 fprintf(NetTrace, "\" USERVAR " + noquote);
663 noquote = 2;
664 break;
665
666 default:
667 if (isprint(pointer[i]) && pointer[i] != '"') {
668 if (noquote) {
669 putc('"', NetTrace);
670 noquote = 0;
671 }
672 putc(pointer[i], NetTrace);
673 } else {
674 fprintf(NetTrace, "\" %03o " + noquote,
675 pointer[i]);
676 noquote = 2;
677 }
678 break;
679 }
680 }
681 if (!noquote)
682 putc('"', NetTrace);
683 break;
684 }
685 }
686 break;
687
688 default:
689 if (TELOPT_OK(pointer[0]))
690 fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0]));
691 else
692 fprintf(NetTrace, "%d (unknown)", pointer[0]);
693 for (i = 1; i < length; i++)
694 fprintf(NetTrace, " %d", pointer[i]);
695 break;
696 }
697 if (direction) {
698 if (NetTrace == stdout)
699 fprintf(NetTrace, "\r\n");
700 else
701 fprintf(NetTrace, "\n");
702 }
703 if (NetTrace == stdout)
704 fflush(NetTrace);
705 }
706 }
707
708 /* EmptyTerminal - called to make sure that the terminal buffer is empty.
709 * Note that we consider the buffer to run all the
710 * way to the kernel (thus the select).
711 */
712
713 static void
714 EmptyTerminal(void)
715 {
716 fd_set o;
717
718 FD_ZERO(&o);
719
720 if (TTYBYTES() == 0) {
721 FD_SET(tout, &o);
722 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
723 (struct timeval *) 0); /* wait for TTLOWAT */
724 } else {
725 while (TTYBYTES()) {
726 (void) ttyflush(0);
727 FD_SET(tout, &o);
728 (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
729 (struct timeval *) 0); /* wait for TTLOWAT */
730 }
731 }
732 }
733
734 static void
735 SetForExit(void)
736 {
737 setconnmode(0);
738 do {
739 (void)telrcv(); /* Process any incoming data */
740 EmptyTerminal();
741 } while (ring_full_count(&netiring)); /* While there is any */
742 setcommandmode();
743 fflush(stdout);
744 fflush(stderr);
745 setconnmode(0);
746 EmptyTerminal(); /* Flush the path to the tty */
747 setcommandmode();
748 }
749
750 void
751 Exit(int returnCode)
752 {
753 SetForExit();
754 exit(returnCode);
755 }
756
757 void
758 ExitString(const char *string, int returnCode)
759 {
760 SetForExit();
761 fwrite(string, 1, strlen(string), stderr);
762 exit(returnCode);
763 }
DragonFly BSD