xref: /dragonfly/contrib/libedit/src/tty.c (revision a32bc35d)
1 /*	$NetBSD: tty.c,v 1.41 2011/10/04 15:27:04 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 1992, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Christos Zoulas of Cornell University.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include "config.h"
36 #if !defined(lint) && !defined(SCCSID)
37 #if 0
38 static char sccsid[] = "@(#)tty.c	8.1 (Berkeley) 6/4/93";
39 #else
40 __RCSID("$NetBSD: tty.c,v 1.41 2011/10/04 15:27:04 christos Exp $");
41 #endif
42 #endif /* not lint && not SCCSID */
43 
44 /*
45  * tty.c: tty interface stuff
46  */
47 #include <assert.h>
48 #include <errno.h>
49 #include <unistd.h>	/* for isatty */
50 #include <strings.h>	/* for ffs */
51 #include "el.h"
52 #include "tty.h"
53 
54 typedef struct ttymodes_t {
55 	const char *m_name;
56 	unsigned int m_value;
57 	int m_type;
58 }          ttymodes_t;
59 
60 typedef struct ttymap_t {
61 	Int nch, och;		/* Internal and termio rep of chars */
62 	el_action_t bind[3];	/* emacs, vi, and vi-cmd */
63 } ttymap_t;
64 
65 
66 private const ttyperm_t ttyperm = {
67 	{
68 		{"iflag:", ICRNL, (INLCR | IGNCR)},
69 		{"oflag:", (OPOST | ONLCR), ONLRET},
70 		{"cflag:", 0, 0},
71 		{"lflag:", (ISIG | ICANON | ECHO | ECHOE | ECHOCTL | IEXTEN),
72 		(NOFLSH | ECHONL | EXTPROC | FLUSHO)},
73 		{"chars:", 0, 0},
74 	},
75 	{
76 		{"iflag:", (INLCR | ICRNL), IGNCR},
77 		{"oflag:", (OPOST | ONLCR), ONLRET},
78 		{"cflag:", 0, 0},
79 		{"lflag:", ISIG,
80 		(NOFLSH | ICANON | ECHO | ECHOK | ECHONL | EXTPROC | IEXTEN | FLUSHO)},
81 		{"chars:", (C_SH(C_MIN) | C_SH(C_TIME) | C_SH(C_SWTCH) | C_SH(C_DSWTCH) |
82 			    C_SH(C_SUSP) | C_SH(C_DSUSP) | C_SH(C_EOL) | C_SH(C_DISCARD) |
83 		    C_SH(C_PGOFF) | C_SH(C_PAGE) | C_SH(C_STATUS)), 0}
84 	},
85 	{
86 		{"iflag:", 0, IXON | IXOFF | INLCR | ICRNL},
87 		{"oflag:", 0, 0},
88 		{"cflag:", 0, 0},
89 		{"lflag:", 0, ISIG | IEXTEN},
90 		{"chars:", 0, 0},
91 	}
92 };
93 
94 private const ttychar_t ttychar = {
95 	{
96 		CINTR, CQUIT, CERASE, CKILL,
97 		CEOF, CEOL, CEOL2, CSWTCH,
98 		CDSWTCH, CERASE2, CSTART, CSTOP,
99 		CWERASE, CSUSP, CDSUSP, CREPRINT,
100 		CDISCARD, CLNEXT, CSTATUS, CPAGE,
101 		CPGOFF, CKILL2, CBRK, CMIN,
102 		CTIME
103 	},
104 	{
105 		CINTR, CQUIT, CERASE, CKILL,
106 		_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
107 		_POSIX_VDISABLE, CERASE2, CSTART, CSTOP,
108 		_POSIX_VDISABLE, CSUSP, _POSIX_VDISABLE, _POSIX_VDISABLE,
109 		CDISCARD, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
110 		_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 1,
111 		0
112 	},
113 	{
114 		0, 0, 0, 0,
115 		0, 0, 0, 0,
116 		0, 0, 0, 0,
117 		0, 0, 0, 0,
118 		0, 0, 0, 0,
119 		0, 0, 0, 0,
120 		0
121 	}
122 };
123 
124 private const ttymap_t tty_map[] = {
125 #ifdef VERASE
126 	{C_ERASE, VERASE,
127 	{EM_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
128 #endif /* VERASE */
129 #ifdef VERASE2
130 	{C_ERASE2, VERASE2,
131 	{EM_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
132 #endif /* VERASE2 */
133 #ifdef VKILL
134 	{C_KILL, VKILL,
135 	{EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
136 #endif /* VKILL */
137 #ifdef VKILL2
138 	{C_KILL2, VKILL2,
139 	{EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
140 #endif /* VKILL2 */
141 #ifdef VEOF
142 	{C_EOF, VEOF,
143 	{EM_DELETE_OR_LIST, VI_LIST_OR_EOF, ED_UNASSIGNED}},
144 #endif /* VEOF */
145 #ifdef VWERASE
146 	{C_WERASE, VWERASE,
147 	{ED_DELETE_PREV_WORD, ED_DELETE_PREV_WORD, ED_PREV_WORD}},
148 #endif /* VWERASE */
149 #ifdef VREPRINT
150 	{C_REPRINT, VREPRINT,
151 	{ED_REDISPLAY, ED_INSERT, ED_REDISPLAY}},
152 #endif /* VREPRINT */
153 #ifdef VLNEXT
154 	{C_LNEXT, VLNEXT,
155 	{ED_QUOTED_INSERT, ED_QUOTED_INSERT, ED_UNASSIGNED}},
156 #endif /* VLNEXT */
157 	{(Int)-1, (Int)-1,
158 	{ED_UNASSIGNED, ED_UNASSIGNED, ED_UNASSIGNED}}
159 };
160 
161 private const ttymodes_t ttymodes[] = {
162 #ifdef	IGNBRK
163 	{"ignbrk", IGNBRK, MD_INP},
164 #endif /* IGNBRK */
165 #ifdef	BRKINT
166 	{"brkint", BRKINT, MD_INP},
167 #endif /* BRKINT */
168 #ifdef	IGNPAR
169 	{"ignpar", IGNPAR, MD_INP},
170 #endif /* IGNPAR */
171 #ifdef	PARMRK
172 	{"parmrk", PARMRK, MD_INP},
173 #endif /* PARMRK */
174 #ifdef	INPCK
175 	{"inpck", INPCK, MD_INP},
176 #endif /* INPCK */
177 #ifdef	ISTRIP
178 	{"istrip", ISTRIP, MD_INP},
179 #endif /* ISTRIP */
180 #ifdef	INLCR
181 	{"inlcr", INLCR, MD_INP},
182 #endif /* INLCR */
183 #ifdef	IGNCR
184 	{"igncr", IGNCR, MD_INP},
185 #endif /* IGNCR */
186 #ifdef	ICRNL
187 	{"icrnl", ICRNL, MD_INP},
188 #endif /* ICRNL */
189 #ifdef	IUCLC
190 	{"iuclc", IUCLC, MD_INP},
191 #endif /* IUCLC */
192 #ifdef	IXON
193 	{"ixon", IXON, MD_INP},
194 #endif /* IXON */
195 #ifdef	IXANY
196 	{"ixany", IXANY, MD_INP},
197 #endif /* IXANY */
198 #ifdef	IXOFF
199 	{"ixoff", IXOFF, MD_INP},
200 #endif /* IXOFF */
201 #ifdef  IMAXBEL
202 	{"imaxbel", IMAXBEL, MD_INP},
203 #endif /* IMAXBEL */
204 
205 #ifdef	OPOST
206 	{"opost", OPOST, MD_OUT},
207 #endif /* OPOST */
208 #ifdef	OLCUC
209 	{"olcuc", OLCUC, MD_OUT},
210 #endif /* OLCUC */
211 #ifdef	ONLCR
212 	{"onlcr", ONLCR, MD_OUT},
213 #endif /* ONLCR */
214 #ifdef	OCRNL
215 	{"ocrnl", OCRNL, MD_OUT},
216 #endif /* OCRNL */
217 #ifdef	ONOCR
218 	{"onocr", ONOCR, MD_OUT},
219 #endif /* ONOCR */
220 #ifdef ONOEOT
221 	{"onoeot", ONOEOT, MD_OUT},
222 #endif /* ONOEOT */
223 #ifdef	ONLRET
224 	{"onlret", ONLRET, MD_OUT},
225 #endif /* ONLRET */
226 #ifdef	OFILL
227 	{"ofill", OFILL, MD_OUT},
228 #endif /* OFILL */
229 #ifdef	OFDEL
230 	{"ofdel", OFDEL, MD_OUT},
231 #endif /* OFDEL */
232 #ifdef	NLDLY
233 	{"nldly", NLDLY, MD_OUT},
234 #endif /* NLDLY */
235 #ifdef	CRDLY
236 	{"crdly", CRDLY, MD_OUT},
237 #endif /* CRDLY */
238 #ifdef	TABDLY
239 	{"tabdly", TABDLY, MD_OUT},
240 #endif /* TABDLY */
241 #ifdef	XTABS
242 	{"xtabs", XTABS, MD_OUT},
243 #endif /* XTABS */
244 #ifdef	BSDLY
245 	{"bsdly", BSDLY, MD_OUT},
246 #endif /* BSDLY */
247 #ifdef	VTDLY
248 	{"vtdly", VTDLY, MD_OUT},
249 #endif /* VTDLY */
250 #ifdef	FFDLY
251 	{"ffdly", FFDLY, MD_OUT},
252 #endif /* FFDLY */
253 #ifdef	PAGEOUT
254 	{"pageout", PAGEOUT, MD_OUT},
255 #endif /* PAGEOUT */
256 #ifdef	WRAP
257 	{"wrap", WRAP, MD_OUT},
258 #endif /* WRAP */
259 
260 #ifdef	CIGNORE
261 	{"cignore", CIGNORE, MD_CTL},
262 #endif /* CBAUD */
263 #ifdef	CBAUD
264 	{"cbaud", CBAUD, MD_CTL},
265 #endif /* CBAUD */
266 #ifdef	CSTOPB
267 	{"cstopb", CSTOPB, MD_CTL},
268 #endif /* CSTOPB */
269 #ifdef	CREAD
270 	{"cread", CREAD, MD_CTL},
271 #endif /* CREAD */
272 #ifdef	PARENB
273 	{"parenb", PARENB, MD_CTL},
274 #endif /* PARENB */
275 #ifdef	PARODD
276 	{"parodd", PARODD, MD_CTL},
277 #endif /* PARODD */
278 #ifdef	HUPCL
279 	{"hupcl", HUPCL, MD_CTL},
280 #endif /* HUPCL */
281 #ifdef	CLOCAL
282 	{"clocal", CLOCAL, MD_CTL},
283 #endif /* CLOCAL */
284 #ifdef	LOBLK
285 	{"loblk", LOBLK, MD_CTL},
286 #endif /* LOBLK */
287 #ifdef	CIBAUD
288 	{"cibaud", CIBAUD, MD_CTL},
289 #endif /* CIBAUD */
290 #ifdef CRTSCTS
291 #ifdef CCTS_OFLOW
292 	{"ccts_oflow", CCTS_OFLOW, MD_CTL},
293 #else
294 	{"crtscts", CRTSCTS, MD_CTL},
295 #endif /* CCTS_OFLOW */
296 #endif /* CRTSCTS */
297 #ifdef CRTS_IFLOW
298 	{"crts_iflow", CRTS_IFLOW, MD_CTL},
299 #endif /* CRTS_IFLOW */
300 #ifdef CDTRCTS
301 	{"cdtrcts", CDTRCTS, MD_CTL},
302 #endif /* CDTRCTS */
303 #ifdef MDMBUF
304 	{"mdmbuf", MDMBUF, MD_CTL},
305 #endif /* MDMBUF */
306 #ifdef RCV1EN
307 	{"rcv1en", RCV1EN, MD_CTL},
308 #endif /* RCV1EN */
309 #ifdef XMT1EN
310 	{"xmt1en", XMT1EN, MD_CTL},
311 #endif /* XMT1EN */
312 
313 #ifdef	ISIG
314 	{"isig", ISIG, MD_LIN},
315 #endif /* ISIG */
316 #ifdef	ICANON
317 	{"icanon", ICANON, MD_LIN},
318 #endif /* ICANON */
319 #ifdef	XCASE
320 	{"xcase", XCASE, MD_LIN},
321 #endif /* XCASE */
322 #ifdef	ECHO
323 	{"echo", ECHO, MD_LIN},
324 #endif /* ECHO */
325 #ifdef	ECHOE
326 	{"echoe", ECHOE, MD_LIN},
327 #endif /* ECHOE */
328 #ifdef	ECHOK
329 	{"echok", ECHOK, MD_LIN},
330 #endif /* ECHOK */
331 #ifdef	ECHONL
332 	{"echonl", ECHONL, MD_LIN},
333 #endif /* ECHONL */
334 #ifdef	NOFLSH
335 	{"noflsh", NOFLSH, MD_LIN},
336 #endif /* NOFLSH */
337 #ifdef	TOSTOP
338 	{"tostop", TOSTOP, MD_LIN},
339 #endif /* TOSTOP */
340 #ifdef	ECHOCTL
341 	{"echoctl", ECHOCTL, MD_LIN},
342 #endif /* ECHOCTL */
343 #ifdef	ECHOPRT
344 	{"echoprt", ECHOPRT, MD_LIN},
345 #endif /* ECHOPRT */
346 #ifdef	ECHOKE
347 	{"echoke", ECHOKE, MD_LIN},
348 #endif /* ECHOKE */
349 #ifdef	DEFECHO
350 	{"defecho", DEFECHO, MD_LIN},
351 #endif /* DEFECHO */
352 #ifdef	FLUSHO
353 	{"flusho", FLUSHO, MD_LIN},
354 #endif /* FLUSHO */
355 #ifdef	PENDIN
356 	{"pendin", PENDIN, MD_LIN},
357 #endif /* PENDIN */
358 #ifdef	IEXTEN
359 	{"iexten", IEXTEN, MD_LIN},
360 #endif /* IEXTEN */
361 #ifdef	NOKERNINFO
362 	{"nokerninfo", NOKERNINFO, MD_LIN},
363 #endif /* NOKERNINFO */
364 #ifdef	ALTWERASE
365 	{"altwerase", ALTWERASE, MD_LIN},
366 #endif /* ALTWERASE */
367 #ifdef	EXTPROC
368 	{"extproc", EXTPROC, MD_LIN},
369 #endif /* EXTPROC */
370 
371 #if defined(VINTR)
372 	{"intr", C_SH(C_INTR), MD_CHAR},
373 #endif /* VINTR */
374 #if defined(VQUIT)
375 	{"quit", C_SH(C_QUIT), MD_CHAR},
376 #endif /* VQUIT */
377 #if defined(VERASE)
378 	{"erase", C_SH(C_ERASE), MD_CHAR},
379 #endif /* VERASE */
380 #if defined(VKILL)
381 	{"kill", C_SH(C_KILL), MD_CHAR},
382 #endif /* VKILL */
383 #if defined(VEOF)
384 	{"eof", C_SH(C_EOF), MD_CHAR},
385 #endif /* VEOF */
386 #if defined(VEOL)
387 	{"eol", C_SH(C_EOL), MD_CHAR},
388 #endif /* VEOL */
389 #if defined(VEOL2)
390 	{"eol2", C_SH(C_EOL2), MD_CHAR},
391 #endif /* VEOL2 */
392 #if defined(VSWTCH)
393 	{"swtch", C_SH(C_SWTCH), MD_CHAR},
394 #endif /* VSWTCH */
395 #if defined(VDSWTCH)
396 	{"dswtch", C_SH(C_DSWTCH), MD_CHAR},
397 #endif /* VDSWTCH */
398 #if defined(VERASE2)
399 	{"erase2", C_SH(C_ERASE2), MD_CHAR},
400 #endif /* VERASE2 */
401 #if defined(VSTART)
402 	{"start", C_SH(C_START), MD_CHAR},
403 #endif /* VSTART */
404 #if defined(VSTOP)
405 	{"stop", C_SH(C_STOP), MD_CHAR},
406 #endif /* VSTOP */
407 #if defined(VWERASE)
408 	{"werase", C_SH(C_WERASE), MD_CHAR},
409 #endif /* VWERASE */
410 #if defined(VSUSP)
411 	{"susp", C_SH(C_SUSP), MD_CHAR},
412 #endif /* VSUSP */
413 #if defined(VDSUSP)
414 	{"dsusp", C_SH(C_DSUSP), MD_CHAR},
415 #endif /* VDSUSP */
416 #if defined(VREPRINT)
417 	{"reprint", C_SH(C_REPRINT), MD_CHAR},
418 #endif /* VREPRINT */
419 #if defined(VDISCARD)
420 	{"discard", C_SH(C_DISCARD), MD_CHAR},
421 #endif /* VDISCARD */
422 #if defined(VLNEXT)
423 	{"lnext", C_SH(C_LNEXT), MD_CHAR},
424 #endif /* VLNEXT */
425 #if defined(VSTATUS)
426 	{"status", C_SH(C_STATUS), MD_CHAR},
427 #endif /* VSTATUS */
428 #if defined(VPAGE)
429 	{"page", C_SH(C_PAGE), MD_CHAR},
430 #endif /* VPAGE */
431 #if defined(VPGOFF)
432 	{"pgoff", C_SH(C_PGOFF), MD_CHAR},
433 #endif /* VPGOFF */
434 #if defined(VKILL2)
435 	{"kill2", C_SH(C_KILL2), MD_CHAR},
436 #endif /* VKILL2 */
437 #if defined(VBRK)
438 	{"brk", C_SH(C_BRK), MD_CHAR},
439 #endif /* VBRK */
440 #if defined(VMIN)
441 	{"min", C_SH(C_MIN), MD_CHAR},
442 #endif /* VMIN */
443 #if defined(VTIME)
444 	{"time", C_SH(C_TIME), MD_CHAR},
445 #endif /* VTIME */
446 	{NULL, 0, -1},
447 };
448 
449 
450 
451 #define	tty__gettabs(td)	((((td)->c_oflag & TAB3) == TAB3) ? 0 : 1)
452 #define	tty__geteightbit(td)	(((td)->c_cflag & CSIZE) == CS8)
453 #define	tty__cooked_mode(td)	((td)->c_lflag & ICANON)
454 
455 private int	tty_getty(EditLine *, struct termios *);
456 private int	tty_setty(EditLine *, int, const struct termios *);
457 private int	tty__getcharindex(int);
458 private void	tty__getchar(struct termios *, unsigned char *);
459 private void	tty__setchar(struct termios *, unsigned char *);
460 private speed_t	tty__getspeed(struct termios *);
461 private int	tty_setup(EditLine *);
462 
463 #define	t_qu	t_ts
464 
465 /* tty_getty():
466  *	Wrapper for tcgetattr to handle EINTR
467  */
468 private int
469 tty_getty(EditLine *el, struct termios *t)
470 {
471 	int rv;
472 	while ((rv = tcgetattr(el->el_infd, t)) == -1 && errno == EINTR)
473 		continue;
474 	return rv;
475 }
476 
477 /* tty_setty():
478  *	Wrapper for tcsetattr to handle EINTR
479  */
480 private int
481 tty_setty(EditLine *el, int action, const struct termios *t)
482 {
483 	int rv;
484 	while ((rv = tcsetattr(el->el_infd, action, t)) == -1 && errno == EINTR)
485 		continue;
486 	return rv;
487 }
488 
489 /* tty_setup():
490  *	Get the tty parameters and initialize the editing state
491  */
492 private int
493 tty_setup(EditLine *el)
494 {
495 	int rst = 1;
496 
497 	if (el->el_flags & EDIT_DISABLED)
498 		return 0;
499 
500 	if (!isatty(el->el_outfd)) {
501 #ifdef DEBUG_TTY
502 		(void) fprintf(el->el_errfile,
503 		    "tty_setup: isatty: %s\n", strerror(errno));
504 #endif /* DEBUG_TTY */
505 		return -1;
506 	}
507 	if (tty_getty(el, &el->el_tty.t_ed) == -1) {
508 #ifdef DEBUG_TTY
509 		(void) fprintf(el->el_errfile,
510 		    "tty_setup: tty_getty: %s\n", strerror(errno));
511 #endif /* DEBUG_TTY */
512 		return -1;
513 	}
514 	el->el_tty.t_ts = el->el_tty.t_ex = el->el_tty.t_ed;
515 
516 	el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ex);
517 	el->el_tty.t_tabs = tty__gettabs(&el->el_tty.t_ex);
518 	el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ex);
519 
520 	el->el_tty.t_ex.c_iflag &= ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
521 	el->el_tty.t_ex.c_iflag |= el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
522 
523 	el->el_tty.t_ex.c_oflag &= ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
524 	el->el_tty.t_ex.c_oflag |= el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
525 
526 	el->el_tty.t_ex.c_cflag &= ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
527 	el->el_tty.t_ex.c_cflag |= el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
528 
529 	el->el_tty.t_ex.c_lflag &= ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
530 	el->el_tty.t_ex.c_lflag |= el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
531 
532 	/*
533          * Reset the tty chars to reasonable defaults
534          * If they are disabled, then enable them.
535          */
536 	if (rst) {
537 		if (tty__cooked_mode(&el->el_tty.t_ts)) {
538 			tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
539 			/*
540 	                 * Don't affect CMIN and CTIME for the editor mode
541 	                 */
542 			for (rst = 0; rst < C_NCC - 2; rst++)
543 				if (el->el_tty.t_c[TS_IO][rst] !=
544 				      el->el_tty.t_vdisable
545 				    && el->el_tty.t_c[ED_IO][rst] !=
546 				      el->el_tty.t_vdisable)
547 					el->el_tty.t_c[ED_IO][rst] =
548 					    el->el_tty.t_c[TS_IO][rst];
549 			for (rst = 0; rst < C_NCC; rst++)
550 				if (el->el_tty.t_c[TS_IO][rst] !=
551 				    el->el_tty.t_vdisable)
552 					el->el_tty.t_c[EX_IO][rst] =
553 					    el->el_tty.t_c[TS_IO][rst];
554 		}
555 		tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
556 		if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ex) == -1) {
557 #ifdef DEBUG_TTY
558 			(void) fprintf(el->el_errfile,
559 			    "tty_setup: tty_setty: %s\n",
560 			    strerror(errno));
561 #endif /* DEBUG_TTY */
562 			return -1;
563 		}
564 	}
565 
566 	el->el_tty.t_ed.c_iflag &= ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
567 	el->el_tty.t_ed.c_iflag |= el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
568 
569 	el->el_tty.t_ed.c_oflag &= ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
570 	el->el_tty.t_ed.c_oflag |= el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
571 
572 	el->el_tty.t_ed.c_cflag &= ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
573 	el->el_tty.t_ed.c_cflag |= el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
574 
575 	el->el_tty.t_ed.c_lflag &= ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
576 	el->el_tty.t_ed.c_lflag |= el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
577 
578 	tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
579 	tty_bind_char(el, 1);
580 	return 0;
581 }
582 
583 protected int
584 tty_init(EditLine *el)
585 {
586 
587 	el->el_tty.t_mode = EX_IO;
588 	el->el_tty.t_vdisable = _POSIX_VDISABLE;
589 	(void) memcpy(el->el_tty.t_t, ttyperm, sizeof(ttyperm_t));
590 	(void) memcpy(el->el_tty.t_c, ttychar, sizeof(ttychar_t));
591 	return tty_setup(el);
592 }
593 
594 
595 /* tty_end():
596  *	Restore the tty to its original settings
597  */
598 protected void
599 /*ARGSUSED*/
600 tty_end(EditLine *el __attribute__((__unused__)))
601 {
602 
603 	/* XXX: Maybe reset to an initial state? */
604 }
605 
606 
607 /* tty__getspeed():
608  *	Get the tty speed
609  */
610 private speed_t
611 tty__getspeed(struct termios *td)
612 {
613 	speed_t spd;
614 
615 	if ((spd = cfgetispeed(td)) == 0)
616 		spd = cfgetospeed(td);
617 	return spd;
618 }
619 
620 /* tty__getspeed():
621  *	Return the index of the asked char in the c_cc array
622  */
623 private int
624 tty__getcharindex(int i)
625 {
626 	switch (i) {
627 #ifdef VINTR
628 	case C_INTR:
629 		return VINTR;
630 #endif /* VINTR */
631 #ifdef VQUIT
632 	case C_QUIT:
633 		return VQUIT;
634 #endif /* VQUIT */
635 #ifdef VERASE
636 	case C_ERASE:
637 		return VERASE;
638 #endif /* VERASE */
639 #ifdef VKILL
640 	case C_KILL:
641 		return VKILL;
642 #endif /* VKILL */
643 #ifdef VEOF
644 	case C_EOF:
645 		return VEOF;
646 #endif /* VEOF */
647 #ifdef VEOL
648 	case C_EOL:
649 		return VEOL;
650 #endif /* VEOL */
651 #ifdef VEOL2
652 	case C_EOL2:
653 		return VEOL2;
654 #endif /* VEOL2 */
655 #ifdef VSWTCH
656 	case C_SWTCH:
657 		return VSWTCH;
658 #endif /* VSWTCH */
659 #ifdef VDSWTCH
660 	case C_DSWTCH:
661 		return VDSWTCH;
662 #endif /* VDSWTCH */
663 #ifdef VERASE2
664 	case C_ERASE2:
665 		return VERASE2;
666 #endif /* VERASE2 */
667 #ifdef VSTART
668 	case C_START:
669 		return VSTART;
670 #endif /* VSTART */
671 #ifdef VSTOP
672 	case C_STOP:
673 		return VSTOP;
674 #endif /* VSTOP */
675 #ifdef VWERASE
676 	case C_WERASE:
677 		return VWERASE;
678 #endif /* VWERASE */
679 #ifdef VSUSP
680 	case C_SUSP:
681 		return VSUSP;
682 #endif /* VSUSP */
683 #ifdef VDSUSP
684 	case C_DSUSP:
685 		return VDSUSP;
686 #endif /* VDSUSP */
687 #ifdef VREPRINT
688 	case C_REPRINT:
689 		return VREPRINT;
690 #endif /* VREPRINT */
691 #ifdef VDISCARD
692 	case C_DISCARD:
693 		return VDISCARD;
694 #endif /* VDISCARD */
695 #ifdef VLNEXT
696 	case C_LNEXT:
697 		return VLNEXT;
698 #endif /* VLNEXT */
699 #ifdef VSTATUS
700 	case C_STATUS:
701 		return VSTATUS;
702 #endif /* VSTATUS */
703 #ifdef VPAGE
704 	case C_PAGE:
705 		return VPAGE;
706 #endif /* VPAGE */
707 #ifdef VPGOFF
708 	case C_PGOFF:
709 		return VPGOFF;
710 #endif /* VPGOFF */
711 #ifdef VKILL2
712 	case C_KILL2:
713 		return VKILL2;
714 #endif /* KILL2 */
715 #ifdef VMIN
716 	case C_MIN:
717 		return VMIN;
718 #endif /* VMIN */
719 #ifdef VTIME
720 	case C_TIME:
721 		return VTIME;
722 #endif /* VTIME */
723 	default:
724 		return -1;
725 	}
726 }
727 
728 /* tty__getchar():
729  *	Get the tty characters
730  */
731 private void
732 tty__getchar(struct termios *td, unsigned char *s)
733 {
734 
735 #ifdef VINTR
736 	s[C_INTR] = td->c_cc[VINTR];
737 #endif /* VINTR */
738 #ifdef VQUIT
739 	s[C_QUIT] = td->c_cc[VQUIT];
740 #endif /* VQUIT */
741 #ifdef VERASE
742 	s[C_ERASE] = td->c_cc[VERASE];
743 #endif /* VERASE */
744 #ifdef VKILL
745 	s[C_KILL] = td->c_cc[VKILL];
746 #endif /* VKILL */
747 #ifdef VEOF
748 	s[C_EOF] = td->c_cc[VEOF];
749 #endif /* VEOF */
750 #ifdef VEOL
751 	s[C_EOL] = td->c_cc[VEOL];
752 #endif /* VEOL */
753 #ifdef VEOL2
754 	s[C_EOL2] = td->c_cc[VEOL2];
755 #endif /* VEOL2 */
756 #ifdef VSWTCH
757 	s[C_SWTCH] = td->c_cc[VSWTCH];
758 #endif /* VSWTCH */
759 #ifdef VDSWTCH
760 	s[C_DSWTCH] = td->c_cc[VDSWTCH];
761 #endif /* VDSWTCH */
762 #ifdef VERASE2
763 	s[C_ERASE2] = td->c_cc[VERASE2];
764 #endif /* VERASE2 */
765 #ifdef VSTART
766 	s[C_START] = td->c_cc[VSTART];
767 #endif /* VSTART */
768 #ifdef VSTOP
769 	s[C_STOP] = td->c_cc[VSTOP];
770 #endif /* VSTOP */
771 #ifdef VWERASE
772 	s[C_WERASE] = td->c_cc[VWERASE];
773 #endif /* VWERASE */
774 #ifdef VSUSP
775 	s[C_SUSP] = td->c_cc[VSUSP];
776 #endif /* VSUSP */
777 #ifdef VDSUSP
778 	s[C_DSUSP] = td->c_cc[VDSUSP];
779 #endif /* VDSUSP */
780 #ifdef VREPRINT
781 	s[C_REPRINT] = td->c_cc[VREPRINT];
782 #endif /* VREPRINT */
783 #ifdef VDISCARD
784 	s[C_DISCARD] = td->c_cc[VDISCARD];
785 #endif /* VDISCARD */
786 #ifdef VLNEXT
787 	s[C_LNEXT] = td->c_cc[VLNEXT];
788 #endif /* VLNEXT */
789 #ifdef VSTATUS
790 	s[C_STATUS] = td->c_cc[VSTATUS];
791 #endif /* VSTATUS */
792 #ifdef VPAGE
793 	s[C_PAGE] = td->c_cc[VPAGE];
794 #endif /* VPAGE */
795 #ifdef VPGOFF
796 	s[C_PGOFF] = td->c_cc[VPGOFF];
797 #endif /* VPGOFF */
798 #ifdef VKILL2
799 	s[C_KILL2] = td->c_cc[VKILL2];
800 #endif /* KILL2 */
801 #ifdef VMIN
802 	s[C_MIN] = td->c_cc[VMIN];
803 #endif /* VMIN */
804 #ifdef VTIME
805 	s[C_TIME] = td->c_cc[VTIME];
806 #endif /* VTIME */
807 }				/* tty__getchar */
808 
809 
810 /* tty__setchar():
811  *	Set the tty characters
812  */
813 private void
814 tty__setchar(struct termios *td, unsigned char *s)
815 {
816 
817 #ifdef VINTR
818 	td->c_cc[VINTR] = s[C_INTR];
819 #endif /* VINTR */
820 #ifdef VQUIT
821 	td->c_cc[VQUIT] = s[C_QUIT];
822 #endif /* VQUIT */
823 #ifdef VERASE
824 	td->c_cc[VERASE] = s[C_ERASE];
825 #endif /* VERASE */
826 #ifdef VKILL
827 	td->c_cc[VKILL] = s[C_KILL];
828 #endif /* VKILL */
829 #ifdef VEOF
830 	td->c_cc[VEOF] = s[C_EOF];
831 #endif /* VEOF */
832 #ifdef VEOL
833 	td->c_cc[VEOL] = s[C_EOL];
834 #endif /* VEOL */
835 #ifdef VEOL2
836 	td->c_cc[VEOL2] = s[C_EOL2];
837 #endif /* VEOL2 */
838 #ifdef VSWTCH
839 	td->c_cc[VSWTCH] = s[C_SWTCH];
840 #endif /* VSWTCH */
841 #ifdef VDSWTCH
842 	td->c_cc[VDSWTCH] = s[C_DSWTCH];
843 #endif /* VDSWTCH */
844 #ifdef VERASE2
845 	td->c_cc[VERASE2] = s[C_ERASE2];
846 #endif /* VERASE2 */
847 #ifdef VSTART
848 	td->c_cc[VSTART] = s[C_START];
849 #endif /* VSTART */
850 #ifdef VSTOP
851 	td->c_cc[VSTOP] = s[C_STOP];
852 #endif /* VSTOP */
853 #ifdef VWERASE
854 	td->c_cc[VWERASE] = s[C_WERASE];
855 #endif /* VWERASE */
856 #ifdef VSUSP
857 	td->c_cc[VSUSP] = s[C_SUSP];
858 #endif /* VSUSP */
859 #ifdef VDSUSP
860 	td->c_cc[VDSUSP] = s[C_DSUSP];
861 #endif /* VDSUSP */
862 #ifdef VREPRINT
863 	td->c_cc[VREPRINT] = s[C_REPRINT];
864 #endif /* VREPRINT */
865 #ifdef VDISCARD
866 	td->c_cc[VDISCARD] = s[C_DISCARD];
867 #endif /* VDISCARD */
868 #ifdef VLNEXT
869 	td->c_cc[VLNEXT] = s[C_LNEXT];
870 #endif /* VLNEXT */
871 #ifdef VSTATUS
872 	td->c_cc[VSTATUS] = s[C_STATUS];
873 #endif /* VSTATUS */
874 #ifdef VPAGE
875 	td->c_cc[VPAGE] = s[C_PAGE];
876 #endif /* VPAGE */
877 #ifdef VPGOFF
878 	td->c_cc[VPGOFF] = s[C_PGOFF];
879 #endif /* VPGOFF */
880 #ifdef VKILL2
881 	td->c_cc[VKILL2] = s[C_KILL2];
882 #endif /* VKILL2 */
883 #ifdef VMIN
884 	td->c_cc[VMIN] = s[C_MIN];
885 #endif /* VMIN */
886 #ifdef VTIME
887 	td->c_cc[VTIME] = s[C_TIME];
888 #endif /* VTIME */
889 }				/* tty__setchar */
890 
891 
892 /* tty_bind_char():
893  *	Rebind the editline functions
894  */
895 protected void
896 tty_bind_char(EditLine *el, int force)
897 {
898 
899 	unsigned char *t_n = el->el_tty.t_c[ED_IO];
900 	unsigned char *t_o = el->el_tty.t_ed.c_cc;
901 	Char new[2], old[2];
902 	const ttymap_t *tp;
903 	el_action_t *map, *alt;
904 	const el_action_t *dmap, *dalt;
905 	new[1] = old[1] = '\0';
906 
907 	map = el->el_map.key;
908 	alt = el->el_map.alt;
909 	if (el->el_map.type == MAP_VI) {
910 		dmap = el->el_map.vii;
911 		dalt = el->el_map.vic;
912 	} else {
913 		dmap = el->el_map.emacs;
914 		dalt = NULL;
915 	}
916 
917 	for (tp = tty_map; tp->nch != (Int)-1; tp++) {
918 		new[0] = t_n[tp->nch];
919 		old[0] = t_o[tp->och];
920 		if (new[0] == old[0] && !force)
921 			continue;
922 		/* Put the old default binding back, and set the new binding */
923 		keymacro_clear(el, map, old);
924 		map[UC(old[0])] = dmap[UC(old[0])];
925 		keymacro_clear(el, map, new);
926 		/* MAP_VI == 1, MAP_EMACS == 0... */
927 		map[UC(new[0])] = tp->bind[el->el_map.type];
928 		if (dalt) {
929 			keymacro_clear(el, alt, old);
930 			alt[UC(old[0])] = dalt[UC(old[0])];
931 			keymacro_clear(el, alt, new);
932 			alt[UC(new[0])] = tp->bind[el->el_map.type + 1];
933 		}
934 	}
935 }
936 
937 
938 /* tty_rawmode():
939  * 	Set terminal into 1 character at a time mode.
940  */
941 protected int
942 tty_rawmode(EditLine *el)
943 {
944 
945 	if (el->el_tty.t_mode == ED_IO || el->el_tty.t_mode == QU_IO)
946 		return 0;
947 
948 	if (el->el_flags & EDIT_DISABLED)
949 		return 0;
950 
951 	if (tty_getty(el, &el->el_tty.t_ts) == -1) {
952 #ifdef DEBUG_TTY
953 		(void) fprintf(el->el_errfile, "tty_rawmode: tty_getty: %s\n",
954 		    strerror(errno));
955 #endif /* DEBUG_TTY */
956 		return -1;
957 	}
958 	/*
959          * We always keep up with the eight bit setting and the speed of the
960          * tty. But we only believe changes that are made to cooked mode!
961          */
962 	el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ts);
963 	el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ts);
964 
965 	if (tty__getspeed(&el->el_tty.t_ex) != el->el_tty.t_speed ||
966 	    tty__getspeed(&el->el_tty.t_ed) != el->el_tty.t_speed) {
967 		(void) cfsetispeed(&el->el_tty.t_ex, el->el_tty.t_speed);
968 		(void) cfsetospeed(&el->el_tty.t_ex, el->el_tty.t_speed);
969 		(void) cfsetispeed(&el->el_tty.t_ed, el->el_tty.t_speed);
970 		(void) cfsetospeed(&el->el_tty.t_ed, el->el_tty.t_speed);
971 	}
972 	if (tty__cooked_mode(&el->el_tty.t_ts)) {
973 		if (el->el_tty.t_ts.c_cflag != el->el_tty.t_ex.c_cflag) {
974 			el->el_tty.t_ex.c_cflag =
975 			    el->el_tty.t_ts.c_cflag;
976 			el->el_tty.t_ex.c_cflag &=
977 			    ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
978 			el->el_tty.t_ex.c_cflag |=
979 			    el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
980 
981 			el->el_tty.t_ed.c_cflag =
982 			    el->el_tty.t_ts.c_cflag;
983 			el->el_tty.t_ed.c_cflag &=
984 			    ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
985 			el->el_tty.t_ed.c_cflag |=
986 			    el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
987 		}
988 		if ((el->el_tty.t_ts.c_lflag != el->el_tty.t_ex.c_lflag) &&
989 		    (el->el_tty.t_ts.c_lflag != el->el_tty.t_ed.c_lflag)) {
990 			el->el_tty.t_ex.c_lflag =
991 			    el->el_tty.t_ts.c_lflag;
992 			el->el_tty.t_ex.c_lflag &=
993 			    ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
994 			el->el_tty.t_ex.c_lflag |=
995 			    el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
996 
997 			el->el_tty.t_ed.c_lflag =
998 			    el->el_tty.t_ts.c_lflag;
999 			el->el_tty.t_ed.c_lflag &=
1000 			    ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
1001 			el->el_tty.t_ed.c_lflag |=
1002 			    el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
1003 		}
1004 		if ((el->el_tty.t_ts.c_iflag != el->el_tty.t_ex.c_iflag) &&
1005 		    (el->el_tty.t_ts.c_iflag != el->el_tty.t_ed.c_iflag)) {
1006 			el->el_tty.t_ex.c_iflag =
1007 			    el->el_tty.t_ts.c_iflag;
1008 			el->el_tty.t_ex.c_iflag &=
1009 			    ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
1010 			el->el_tty.t_ex.c_iflag |=
1011 			    el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
1012 
1013 			el->el_tty.t_ed.c_iflag =
1014 			    el->el_tty.t_ts.c_iflag;
1015 			el->el_tty.t_ed.c_iflag &=
1016 			    ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
1017 			el->el_tty.t_ed.c_iflag |=
1018 			    el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
1019 		}
1020 		if ((el->el_tty.t_ts.c_oflag != el->el_tty.t_ex.c_oflag) &&
1021 		    (el->el_tty.t_ts.c_oflag != el->el_tty.t_ed.c_oflag)) {
1022 			el->el_tty.t_ex.c_oflag =
1023 			    el->el_tty.t_ts.c_oflag;
1024 			el->el_tty.t_ex.c_oflag &=
1025 			    ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
1026 			el->el_tty.t_ex.c_oflag |=
1027 			    el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
1028 
1029 			el->el_tty.t_ed.c_oflag =
1030 			    el->el_tty.t_ts.c_oflag;
1031 			el->el_tty.t_ed.c_oflag &=
1032 			    ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
1033 			el->el_tty.t_ed.c_oflag |=
1034 			    el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
1035 		}
1036 		if (tty__gettabs(&el->el_tty.t_ex) == 0)
1037 			el->el_tty.t_tabs = 0;
1038 		else
1039 			el->el_tty.t_tabs = EL_CAN_TAB ? 1 : 0;
1040 
1041 		{
1042 			int i;
1043 
1044 			tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
1045 			/*
1046 		         * Check if the user made any changes.
1047 		         * If he did, then propagate the changes to the
1048 		         * edit and execute data structures.
1049 		         */
1050 			for (i = 0; i < C_NCC; i++)
1051 				if (el->el_tty.t_c[TS_IO][i] !=
1052 				    el->el_tty.t_c[EX_IO][i])
1053 					break;
1054 
1055 			if (i != C_NCC) {
1056 				/*
1057 				 * Propagate changes only to the unprotected
1058 				 * chars that have been modified just now.
1059 				 */
1060 				for (i = 0; i < C_NCC; i++) {
1061 					if (!((el->el_tty.t_t[ED_IO][MD_CHAR].t_setmask & C_SH(i)))
1062 					    && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
1063 						el->el_tty.t_c[ED_IO][i] = el->el_tty.t_c[TS_IO][i];
1064 					if (el->el_tty.t_t[ED_IO][MD_CHAR].t_clrmask & C_SH(i))
1065 						el->el_tty.t_c[ED_IO][i] = el->el_tty.t_vdisable;
1066 				}
1067 				tty_bind_char(el, 0);
1068 				tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
1069 
1070 				for (i = 0; i < C_NCC; i++) {
1071 					if (!((el->el_tty.t_t[EX_IO][MD_CHAR].t_setmask & C_SH(i)))
1072 					    && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
1073 						el->el_tty.t_c[EX_IO][i] = el->el_tty.t_c[TS_IO][i];
1074 					if (el->el_tty.t_t[EX_IO][MD_CHAR].t_clrmask & C_SH(i))
1075 						el->el_tty.t_c[EX_IO][i] = el->el_tty.t_vdisable;
1076 				}
1077 				tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
1078 			}
1079 		}
1080 	}
1081 	if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ed) == -1) {
1082 #ifdef DEBUG_TTY
1083 		(void) fprintf(el->el_errfile, "tty_rawmode: tty_setty: %s\n",
1084 		    strerror(errno));
1085 #endif /* DEBUG_TTY */
1086 		return -1;
1087 	}
1088 	el->el_tty.t_mode = ED_IO;
1089 	return 0;
1090 }
1091 
1092 
1093 /* tty_cookedmode():
1094  *	Set the tty back to normal mode
1095  */
1096 protected int
1097 tty_cookedmode(EditLine *el)
1098 {				/* set tty in normal setup */
1099 
1100 	if (el->el_tty.t_mode == EX_IO)
1101 		return 0;
1102 
1103 	if (el->el_flags & EDIT_DISABLED)
1104 		return 0;
1105 
1106 	if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ex) == -1) {
1107 #ifdef DEBUG_TTY
1108 		(void) fprintf(el->el_errfile,
1109 		    "tty_cookedmode: tty_setty: %s\n",
1110 		    strerror(errno));
1111 #endif /* DEBUG_TTY */
1112 		return -1;
1113 	}
1114 	el->el_tty.t_mode = EX_IO;
1115 	return 0;
1116 }
1117 
1118 
1119 /* tty_quotemode():
1120  *	Turn on quote mode
1121  */
1122 protected int
1123 tty_quotemode(EditLine *el)
1124 {
1125 	if (el->el_tty.t_mode == QU_IO)
1126 		return 0;
1127 
1128 	el->el_tty.t_qu = el->el_tty.t_ed;
1129 
1130 	el->el_tty.t_qu.c_iflag &= ~el->el_tty.t_t[QU_IO][MD_INP].t_clrmask;
1131 	el->el_tty.t_qu.c_iflag |= el->el_tty.t_t[QU_IO][MD_INP].t_setmask;
1132 
1133 	el->el_tty.t_qu.c_oflag &= ~el->el_tty.t_t[QU_IO][MD_OUT].t_clrmask;
1134 	el->el_tty.t_qu.c_oflag |= el->el_tty.t_t[QU_IO][MD_OUT].t_setmask;
1135 
1136 	el->el_tty.t_qu.c_cflag &= ~el->el_tty.t_t[QU_IO][MD_CTL].t_clrmask;
1137 	el->el_tty.t_qu.c_cflag |= el->el_tty.t_t[QU_IO][MD_CTL].t_setmask;
1138 
1139 	el->el_tty.t_qu.c_lflag &= ~el->el_tty.t_t[QU_IO][MD_LIN].t_clrmask;
1140 	el->el_tty.t_qu.c_lflag |= el->el_tty.t_t[QU_IO][MD_LIN].t_setmask;
1141 
1142 	if (tty_setty(el, TCSADRAIN, &el->el_tty.t_qu) == -1) {
1143 #ifdef DEBUG_TTY
1144 		(void) fprintf(el->el_errfile, "QuoteModeOn: tty_setty: %s\n",
1145 		    strerror(errno));
1146 #endif /* DEBUG_TTY */
1147 		return -1;
1148 	}
1149 	el->el_tty.t_mode = QU_IO;
1150 	return 0;
1151 }
1152 
1153 
1154 /* tty_noquotemode():
1155  *	Turn off quote mode
1156  */
1157 protected int
1158 tty_noquotemode(EditLine *el)
1159 {
1160 
1161 	if (el->el_tty.t_mode != QU_IO)
1162 		return 0;
1163 	if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ed) == -1) {
1164 #ifdef DEBUG_TTY
1165 		(void) fprintf(el->el_errfile, "QuoteModeOff: tty_setty: %s\n",
1166 		    strerror(errno));
1167 #endif /* DEBUG_TTY */
1168 		return -1;
1169 	}
1170 	el->el_tty.t_mode = ED_IO;
1171 	return 0;
1172 }
1173 
1174 
1175 /* tty_stty():
1176  *	Stty builtin
1177  */
1178 protected int
1179 /*ARGSUSED*/
1180 tty_stty(EditLine *el, int argc __attribute__((__unused__)), const Char **argv)
1181 {
1182 	const ttymodes_t *m;
1183 	char x;
1184 	int aflag = 0;
1185 	const Char *s, *d;
1186         char name[EL_BUFSIZ];
1187 	struct termios *tios = &el->el_tty.t_ex;
1188 	int z = EX_IO;
1189 
1190 	if (argv == NULL)
1191 		return -1;
1192 	strncpy(name, ct_encode_string(*argv++, &el->el_scratch), sizeof(name));
1193         name[sizeof(name) - 1] = '\0';
1194 
1195 	while (argv && *argv && argv[0][0] == '-' && argv[0][2] == '\0')
1196 		switch (argv[0][1]) {
1197 		case 'a':
1198 			aflag++;
1199 			argv++;
1200 			break;
1201 		case 'd':
1202 			argv++;
1203 			tios = &el->el_tty.t_ed;
1204 			z = ED_IO;
1205 			break;
1206 		case 'x':
1207 			argv++;
1208 			tios = &el->el_tty.t_ex;
1209 			z = EX_IO;
1210 			break;
1211 		case 'q':
1212 			argv++;
1213 			tios = &el->el_tty.t_ts;
1214 			z = QU_IO;
1215 			break;
1216 		default:
1217 			(void) fprintf(el->el_errfile,
1218 			    "%s: Unknown switch `%c'.\n",
1219 			    name, argv[0][1]);
1220 			return -1;
1221 		}
1222 
1223 	if (!argv || !*argv) {
1224 		int i = -1;
1225 		size_t len = 0, st = 0, cu;
1226 		for (m = ttymodes; m->m_name; m++) {
1227 			if (m->m_type != i) {
1228 				(void) fprintf(el->el_outfile, "%s%s",
1229 				    i != -1 ? "\n" : "",
1230 				    el->el_tty.t_t[z][m->m_type].t_name);
1231 				i = m->m_type;
1232 				st = len =
1233 				    strlen(el->el_tty.t_t[z][m->m_type].t_name);
1234 			}
1235 			if (i != -1) {
1236 			    x = (el->el_tty.t_t[z][i].t_setmask & m->m_value)
1237 				?  '+' : '\0';
1238 
1239 			    if (el->el_tty.t_t[z][i].t_clrmask & m->m_value)
1240 				x = '-';
1241 			} else {
1242 			    x = '\0';
1243 			}
1244 
1245 			if (x != '\0' || aflag) {
1246 
1247 				cu = strlen(m->m_name) + (x != '\0') + 1;
1248 
1249 				if (len + cu >= (size_t)el->el_terminal.t_size.h) {
1250 					(void) fprintf(el->el_outfile, "\n%*s",
1251 					    (int)st, "");
1252 					len = st + cu;
1253 				} else
1254 					len += cu;
1255 
1256 				if (x != '\0')
1257 					(void) fprintf(el->el_outfile, "%c%s ",
1258 					    x, m->m_name);
1259 				else
1260 					(void) fprintf(el->el_outfile, "%s ",
1261 					    m->m_name);
1262 			}
1263 		}
1264 		(void) fprintf(el->el_outfile, "\n");
1265 		return 0;
1266 	}
1267 	while (argv && (s = *argv++)) {
1268 		const Char *p;
1269 		switch (*s) {
1270 		case '+':
1271 		case '-':
1272 			x = (char)*s++;
1273 			break;
1274 		default:
1275 			x = '\0';
1276 			break;
1277 		}
1278 		d = s;
1279 		p = Strchr(s, '=');
1280 		for (m = ttymodes; m->m_name; m++)
1281 			if ((p ? strncmp(m->m_name, ct_encode_string(d, &el->el_scratch), (size_t)(p - d)) :
1282 			    strcmp(m->m_name, ct_encode_string(d, &el->el_scratch))) == 0 &&
1283 			    (p == NULL || m->m_type == MD_CHAR))
1284 				break;
1285 
1286 		if (!m->m_name) {
1287 			(void) fprintf(el->el_errfile,
1288 			    "%s: Invalid argument `" FSTR "'.\n", name, d);
1289 			return -1;
1290 		}
1291 		if (p) {
1292 			int c = ffs((int)m->m_value);
1293 			int v = *++p ? parse__escape(&p) :
1294 			    el->el_tty.t_vdisable;
1295 			assert(c != 0);
1296 			c--;
1297 			c = tty__getcharindex(c);
1298 			assert(c != -1);
1299 			tios->c_cc[c] = (cc_t)v;
1300 			continue;
1301 		}
1302 		switch (x) {
1303 		case '+':
1304 			el->el_tty.t_t[z][m->m_type].t_setmask |= m->m_value;
1305 			el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
1306 			break;
1307 		case '-':
1308 			el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
1309 			el->el_tty.t_t[z][m->m_type].t_clrmask |= m->m_value;
1310 			break;
1311 		default:
1312 			el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
1313 			el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
1314 			break;
1315 		}
1316 	}
1317 
1318 	if (el->el_tty.t_mode == z) {
1319 		if (tty_setty(el, TCSADRAIN, tios) == -1) {
1320 #ifdef DEBUG_TTY
1321 			(void) fprintf(el->el_errfile,
1322 			    "tty_stty: tty_setty: %s\n", strerror(errno));
1323 #endif /* DEBUG_TTY */
1324 			return -1;
1325 		}
1326 	}
1327 
1328 	return 0;
1329 }
1330 
1331 
1332 #ifdef notyet
1333 /* tty_printchar():
1334  *	DEbugging routine to print the tty characters
1335  */
1336 private void
1337 tty_printchar(EditLine *el, unsigned char *s)
1338 {
1339 	ttyperm_t *m;
1340 	int i;
1341 
1342 	for (i = 0; i < C_NCC; i++) {
1343 		for (m = el->el_tty.t_t; m->m_name; m++)
1344 			if (m->m_type == MD_CHAR && C_SH(i) == m->m_value)
1345 				break;
1346 		if (m->m_name)
1347 			(void) fprintf(el->el_errfile, "%s ^%c ",
1348 			    m->m_name, s[i] + 'A' - 1);
1349 		if (i % 5 == 0)
1350 			(void) fprintf(el->el_errfile, "\n");
1351 	}
1352 	(void) fprintf(el->el_errfile, "\n");
1353 }
1354 #endif /* notyet */
1355