Commit | Line | Data |
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d60d9f65 SS |
1 | /* rltty.c -- functions to prepare and restore the terminal for readline's |
2 | use. */ | |
3 | ||
4 | /* Copyright (C) 1992 Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of the GNU Readline Library, a library for | |
7 | reading lines of text with interactive input and history editing. | |
8 | ||
9 | The GNU Readline Library is free software; you can redistribute it | |
10 | and/or modify it under the terms of the GNU General Public License | |
11 | as published by the Free Software Foundation; either version 1, or | |
12 | (at your option) any later version. | |
13 | ||
14 | The GNU Readline Library is distributed in the hope that it will be | |
15 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty | |
16 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | The GNU General Public License is often shipped with GNU software, and | |
20 | is generally kept in a file called COPYING or LICENSE. If you do not | |
21 | have a copy of the license, write to the Free Software Foundation, | |
22 | 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
23 | #define READLINE_LIBRARY | |
24 | ||
25 | #if defined (HAVE_CONFIG_H) | |
26 | # include <config.h> | |
27 | #endif | |
28 | ||
29 | #include <sys/types.h> | |
30 | #include <signal.h> | |
31 | #include <errno.h> | |
32 | #include <stdio.h> | |
33 | ||
34 | #if defined (HAVE_UNISTD_H) | |
35 | # include <unistd.h> | |
36 | #endif /* HAVE_UNISTD_H */ | |
37 | ||
38 | #include "rldefs.h" | |
39 | ||
c862e87b | 40 | #if defined (GWINSZ_IN_SYS_IOCTL) |
d60d9f65 | 41 | # include <sys/ioctl.h> |
c862e87b | 42 | #endif /* GWINSZ_IN_SYS_IOCTL */ |
d60d9f65 SS |
43 | |
44 | #include "rltty.h" | |
45 | #include "readline.h" | |
46 | ||
47 | #if !defined (errno) | |
48 | extern int errno; | |
49 | #endif /* !errno */ | |
50 | ||
51 | extern int readline_echoing_p; | |
52 | extern int _rl_eof_char; | |
53 | ||
54 | extern int _rl_enable_keypad, _rl_enable_meta; | |
55 | ||
56 | extern void _rl_control_keypad (); | |
57 | ||
58 | #if defined (__GO32__) | |
59 | # include <pc.h> | |
60 | # undef HANDLE_SIGNALS | |
61 | #endif /* __GO32__ */ | |
62 | ||
63 | /* Indirect functions to allow apps control over terminal management. */ | |
64 | extern void rl_prep_terminal (), rl_deprep_terminal (); | |
65 | ||
66 | VFunction *rl_prep_term_function = rl_prep_terminal; | |
67 | VFunction *rl_deprep_term_function = rl_deprep_terminal; | |
68 | ||
69 | /* **************************************************************** */ | |
70 | /* */ | |
71 | /* Signal Management */ | |
72 | /* */ | |
73 | /* **************************************************************** */ | |
74 | ||
75 | #if defined (HAVE_POSIX_SIGNALS) | |
76 | static sigset_t sigint_set, sigint_oset; | |
77 | #else /* !HAVE_POSIX_SIGNALS */ | |
78 | # if defined (HAVE_BSD_SIGNALS) | |
79 | static int sigint_oldmask; | |
80 | # endif /* HAVE_BSD_SIGNALS */ | |
81 | #endif /* !HAVE_POSIX_SIGNALS */ | |
82 | ||
83 | static int sigint_blocked; | |
84 | ||
85 | /* Cause SIGINT to not be delivered until the corresponding call to | |
86 | release_sigint(). */ | |
87 | static void | |
88 | block_sigint () | |
89 | { | |
90 | if (sigint_blocked) | |
91 | return; | |
92 | ||
93 | #if defined (HAVE_POSIX_SIGNALS) | |
94 | sigemptyset (&sigint_set); | |
95 | sigemptyset (&sigint_oset); | |
96 | sigaddset (&sigint_set, SIGINT); | |
97 | sigprocmask (SIG_BLOCK, &sigint_set, &sigint_oset); | |
98 | #else /* !HAVE_POSIX_SIGNALS */ | |
99 | # if defined (HAVE_BSD_SIGNALS) | |
100 | sigint_oldmask = sigblock (sigmask (SIGINT)); | |
101 | # else /* !HAVE_BSD_SIGNALS */ | |
102 | # if defined (HAVE_USG_SIGHOLD) | |
103 | sighold (SIGINT); | |
104 | # endif /* HAVE_USG_SIGHOLD */ | |
105 | # endif /* !HAVE_BSD_SIGNALS */ | |
106 | #endif /* !HAVE_POSIX_SIGNALS */ | |
107 | sigint_blocked = 1; | |
108 | } | |
109 | ||
110 | /* Allow SIGINT to be delivered. */ | |
111 | static void | |
112 | release_sigint () | |
113 | { | |
114 | if (!sigint_blocked) | |
115 | return; | |
116 | ||
117 | #if defined (HAVE_POSIX_SIGNALS) | |
118 | sigprocmask (SIG_SETMASK, &sigint_oset, (sigset_t *)NULL); | |
119 | #else | |
120 | # if defined (HAVE_BSD_SIGNALS) | |
121 | sigsetmask (sigint_oldmask); | |
122 | # else /* !HAVE_BSD_SIGNALS */ | |
123 | # if defined (HAVE_USG_SIGHOLD) | |
124 | sigrelse (SIGINT); | |
125 | # endif /* HAVE_USG_SIGHOLD */ | |
126 | # endif /* !HAVE_BSD_SIGNALS */ | |
127 | #endif /* !HAVE_POSIX_SIGNALS */ | |
128 | ||
129 | sigint_blocked = 0; | |
130 | } | |
131 | ||
132 | /* **************************************************************** */ | |
133 | /* */ | |
134 | /* Saving and Restoring the TTY */ | |
135 | /* */ | |
136 | /* **************************************************************** */ | |
137 | ||
138 | /* Non-zero means that the terminal is in a prepped state. */ | |
139 | static int terminal_prepped; | |
140 | ||
141 | /* If non-zero, means that this process has called tcflow(fd, TCOOFF) | |
142 | and output is suspended. */ | |
143 | #if defined (__ksr1__) | |
144 | static int ksrflow; | |
145 | #endif | |
146 | ||
c862e87b | 147 | #if defined (TIOCGWINSZ) |
d60d9f65 SS |
148 | /* Dummy call to force a backgrounded readline to stop before it tries |
149 | to get the tty settings. */ | |
150 | static void | |
151 | set_winsize (tty) | |
152 | int tty; | |
153 | { | |
154 | struct winsize w; | |
155 | ||
156 | if (ioctl (tty, TIOCGWINSZ, &w) == 0) | |
157 | (void) ioctl (tty, TIOCSWINSZ, &w); | |
158 | } | |
c862e87b | 159 | #endif /* TIOCGWINSZ */ |
d60d9f65 SS |
160 | |
161 | #if defined (NEW_TTY_DRIVER) | |
162 | ||
163 | /* Values for the `flags' field of a struct bsdtty. This tells which | |
164 | elements of the struct bsdtty have been fetched from the system and | |
165 | are valid. */ | |
166 | #define SGTTY_SET 0x01 | |
167 | #define LFLAG_SET 0x02 | |
168 | #define TCHARS_SET 0x04 | |
169 | #define LTCHARS_SET 0x08 | |
170 | ||
171 | struct bsdtty { | |
172 | struct sgttyb sgttyb; /* Basic BSD tty driver information. */ | |
173 | int lflag; /* Local mode flags, like LPASS8. */ | |
174 | #if defined (TIOCGETC) | |
175 | struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */ | |
176 | #endif | |
177 | #if defined (TIOCGLTC) | |
178 | struct ltchars ltchars; /* 4.2 BSD editing characters */ | |
179 | #endif | |
180 | int flags; /* Bitmap saying which parts of the struct are valid. */ | |
181 | }; | |
182 | ||
183 | #define TIOTYPE struct bsdtty | |
184 | ||
185 | static TIOTYPE otio; | |
186 | ||
187 | static int | |
188 | get_tty_settings (tty, tiop) | |
189 | int tty; | |
190 | TIOTYPE *tiop; | |
191 | { | |
d1857004 | 192 | #if defined (TIOCGWINSZ) |
d60d9f65 | 193 | set_winsize (tty); |
d1857004 | 194 | #endif |
d60d9f65 SS |
195 | |
196 | tiop->flags = tiop->lflag = 0; | |
197 | ||
198 | ioctl (tty, TIOCGETP, &(tiop->sgttyb)); | |
199 | tiop->flags |= SGTTY_SET; | |
200 | ||
201 | #if defined (TIOCLGET) | |
202 | ioctl (tty, TIOCLGET, &(tiop->lflag)); | |
203 | tiop->flags |= LFLAG_SET; | |
204 | #endif | |
205 | ||
206 | #if defined (TIOCGETC) | |
207 | ioctl (tty, TIOCGETC, &(tiop->tchars)); | |
208 | tiop->flags |= TCHARS_SET; | |
209 | #endif | |
210 | ||
211 | #if defined (TIOCGLTC) | |
212 | ioctl (tty, TIOCGLTC, &(tiop->ltchars)); | |
213 | tiop->flags |= LTCHARS_SET; | |
214 | #endif | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | static int | |
220 | set_tty_settings (tty, tiop) | |
221 | int tty; | |
222 | TIOTYPE *tiop; | |
223 | { | |
224 | if (tiop->flags & SGTTY_SET) | |
225 | { | |
226 | ioctl (tty, TIOCSETN, &(tiop->sgttyb)); | |
227 | tiop->flags &= ~SGTTY_SET; | |
228 | } | |
229 | readline_echoing_p = 1; | |
230 | ||
231 | #if defined (TIOCLSET) | |
232 | if (tiop->flags & LFLAG_SET) | |
233 | { | |
234 | ioctl (tty, TIOCLSET, &(tiop->lflag)); | |
235 | tiop->flags &= ~LFLAG_SET; | |
236 | } | |
237 | #endif | |
238 | ||
239 | #if defined (TIOCSETC) | |
240 | if (tiop->flags & TCHARS_SET) | |
241 | { | |
242 | ioctl (tty, TIOCSETC, &(tiop->tchars)); | |
243 | tiop->flags &= ~TCHARS_SET; | |
244 | } | |
245 | #endif | |
246 | ||
247 | #if defined (TIOCSLTC) | |
248 | if (tiop->flags & LTCHARS_SET) | |
249 | { | |
250 | ioctl (tty, TIOCSLTC, &(tiop->ltchars)); | |
251 | tiop->flags &= ~LTCHARS_SET; | |
252 | } | |
253 | #endif | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
258 | static void | |
259 | prepare_terminal_settings (meta_flag, otio, tiop) | |
260 | int meta_flag; | |
261 | TIOTYPE otio, *tiop; | |
262 | { | |
263 | #if !defined (__GO32__) | |
264 | readline_echoing_p = (otio.sgttyb.sg_flags & ECHO); | |
265 | ||
266 | /* Copy the original settings to the structure we're going to use for | |
267 | our settings. */ | |
268 | tiop->sgttyb = otio.sgttyb; | |
269 | tiop->lflag = otio.lflag; | |
270 | #if defined (TIOCGETC) | |
271 | tiop->tchars = otio.tchars; | |
272 | #endif | |
273 | #if defined (TIOCGLTC) | |
274 | tiop->ltchars = otio.ltchars; | |
275 | #endif | |
276 | tiop->flags = otio.flags; | |
277 | ||
278 | /* First, the basic settings to put us into character-at-a-time, no-echo | |
279 | input mode. */ | |
280 | tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD); | |
281 | tiop->sgttyb.sg_flags |= CBREAK; | |
282 | ||
283 | /* If this terminal doesn't care how the 8th bit is used, then we can | |
284 | use it for the meta-key. If only one of even or odd parity is | |
285 | specified, then the terminal is using parity, and we cannot. */ | |
286 | #if !defined (ANYP) | |
287 | # define ANYP (EVENP | ODDP) | |
288 | #endif | |
289 | if (((otio.sgttyb.sg_flags & ANYP) == ANYP) || | |
290 | ((otio.sgttyb.sg_flags & ANYP) == 0)) | |
291 | { | |
292 | tiop->sgttyb.sg_flags |= ANYP; | |
293 | ||
294 | /* Hack on local mode flags if we can. */ | |
295 | #if defined (TIOCLGET) | |
296 | # if defined (LPASS8) | |
297 | tiop->lflag |= LPASS8; | |
298 | # endif /* LPASS8 */ | |
299 | #endif /* TIOCLGET */ | |
300 | } | |
301 | ||
302 | #if defined (TIOCGETC) | |
303 | # if defined (USE_XON_XOFF) | |
304 | /* Get rid of terminal output start and stop characters. */ | |
305 | tiop->tchars.t_stopc = -1; /* C-s */ | |
306 | tiop->tchars.t_startc = -1; /* C-q */ | |
307 | ||
308 | /* If there is an XON character, bind it to restart the output. */ | |
309 | if (otio.tchars.t_startc != -1) | |
310 | rl_bind_key (otio.tchars.t_startc, rl_restart_output); | |
311 | # endif /* USE_XON_XOFF */ | |
312 | ||
313 | /* If there is an EOF char, bind _rl_eof_char to it. */ | |
314 | if (otio.tchars.t_eofc != -1) | |
315 | _rl_eof_char = otio.tchars.t_eofc; | |
316 | ||
317 | # if defined (NO_KILL_INTR) | |
318 | /* Get rid of terminal-generated SIGQUIT and SIGINT. */ | |
319 | tiop->tchars.t_quitc = -1; /* C-\ */ | |
320 | tiop->tchars.t_intrc = -1; /* C-c */ | |
321 | # endif /* NO_KILL_INTR */ | |
322 | #endif /* TIOCGETC */ | |
323 | ||
324 | #if defined (TIOCGLTC) | |
325 | /* Make the interrupt keys go away. Just enough to make people happy. */ | |
326 | tiop->ltchars.t_dsuspc = -1; /* C-y */ | |
327 | tiop->ltchars.t_lnextc = -1; /* C-v */ | |
328 | #endif /* TIOCGLTC */ | |
329 | #endif /* !__GO32__ */ | |
330 | } | |
331 | ||
332 | #else /* !defined (NEW_TTY_DRIVER) */ | |
333 | ||
334 | #if !defined (VMIN) | |
335 | # define VMIN VEOF | |
336 | #endif | |
337 | ||
338 | #if !defined (VTIME) | |
339 | # define VTIME VEOL | |
340 | #endif | |
341 | ||
342 | #if defined (TERMIOS_TTY_DRIVER) | |
343 | # define TIOTYPE struct termios | |
344 | # define DRAIN_OUTPUT(fd) tcdrain (fd) | |
345 | # define GETATTR(tty, tiop) (tcgetattr (tty, tiop)) | |
346 | # ifdef M_UNIX | |
347 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop)) | |
348 | # else | |
349 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop)) | |
350 | # endif /* !M_UNIX */ | |
351 | #else | |
352 | # define TIOTYPE struct termio | |
353 | # define DRAIN_OUTPUT(fd) | |
354 | # define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop)) | |
355 | # define SETATTR(tty, tiop) (ioctl (tty, TCSETA, tiop)) | |
356 | #endif /* !TERMIOS_TTY_DRIVER */ | |
357 | ||
358 | static TIOTYPE otio; | |
359 | ||
360 | #if defined (FLUSHO) | |
361 | # define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO) | |
362 | #else | |
363 | # define OUTPUT_BEING_FLUSHED(tp) 0 | |
364 | #endif | |
365 | ||
366 | static void | |
367 | rltty_warning (msg) | |
368 | char *msg; | |
369 | { | |
370 | fprintf (stderr, "readline: warning: %s\n", msg); | |
371 | } | |
372 | ||
373 | #if defined (_AIX) | |
374 | void | |
375 | setopost(tp) | |
376 | TIOTYPE *tp; | |
377 | { | |
378 | if ((tp->c_oflag & OPOST) == 0) | |
379 | { | |
380 | rltty_warning ("turning on OPOST for terminal\r"); | |
381 | tp->c_oflag |= OPOST|ONLCR; | |
382 | } | |
383 | } | |
384 | #endif | |
385 | ||
386 | static int | |
387 | get_tty_settings (tty, tiop) | |
388 | int tty; | |
389 | TIOTYPE *tiop; | |
390 | { | |
391 | int ioctl_ret; | |
c862e87b | 392 | |
d1857004 | 393 | #if defined (TIOCGWINSZ) |
d60d9f65 | 394 | set_winsize (tty); |
d1857004 | 395 | #endif |
d60d9f65 SS |
396 | |
397 | while (1) | |
398 | { | |
399 | ioctl_ret = GETATTR (tty, tiop); | |
400 | if (ioctl_ret < 0) | |
401 | { | |
402 | if (errno != EINTR) | |
403 | return -1; | |
404 | else | |
405 | continue; | |
406 | } | |
407 | if (OUTPUT_BEING_FLUSHED (tiop)) | |
408 | { | |
409 | #if defined (FLUSHO) && defined (_AIX41) | |
410 | rltty_warning ("turning off output flushing"); | |
411 | tiop->c_lflag &= ~FLUSHO; | |
412 | break; | |
413 | #else | |
414 | continue; | |
415 | #endif | |
416 | } | |
417 | break; | |
418 | } | |
419 | ||
420 | #if defined (_AIX) | |
421 | setopost(tiop); | |
422 | #endif | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
427 | static int | |
428 | set_tty_settings (tty, tiop) | |
429 | int tty; | |
430 | TIOTYPE *tiop; | |
431 | { | |
432 | while (SETATTR (tty, tiop) < 0) | |
433 | { | |
434 | if (errno != EINTR) | |
435 | return -1; | |
436 | errno = 0; | |
437 | } | |
438 | ||
439 | #if 0 | |
440 | ||
441 | #if defined (TERMIOS_TTY_DRIVER) | |
442 | # if defined (__ksr1__) | |
443 | if (ksrflow) | |
444 | { | |
445 | ksrflow = 0; | |
446 | tcflow (tty, TCOON); | |
447 | } | |
448 | # else /* !ksr1 */ | |
449 | tcflow (tty, TCOON); /* Simulate a ^Q. */ | |
450 | # endif /* !ksr1 */ | |
451 | #else | |
452 | ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ | |
453 | #endif /* !TERMIOS_TTY_DRIVER */ | |
454 | ||
455 | #endif | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | static void | |
461 | prepare_terminal_settings (meta_flag, otio, tiop) | |
462 | int meta_flag; | |
463 | TIOTYPE otio, *tiop; | |
464 | { | |
465 | readline_echoing_p = (otio.c_lflag & ECHO); | |
466 | ||
467 | tiop->c_lflag &= ~(ICANON | ECHO); | |
468 | ||
469 | if ((unsigned char) otio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE) | |
470 | _rl_eof_char = otio.c_cc[VEOF]; | |
471 | ||
472 | #if defined (USE_XON_XOFF) | |
473 | #if defined (IXANY) | |
474 | tiop->c_iflag &= ~(IXON | IXOFF | IXANY); | |
475 | #else | |
476 | /* `strict' Posix systems do not define IXANY. */ | |
477 | tiop->c_iflag &= ~(IXON | IXOFF); | |
478 | #endif /* IXANY */ | |
479 | #endif /* USE_XON_XOFF */ | |
480 | ||
481 | /* Only turn this off if we are using all 8 bits. */ | |
482 | if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag) | |
483 | tiop->c_iflag &= ~(ISTRIP | INPCK); | |
484 | ||
485 | /* Make sure we differentiate between CR and NL on input. */ | |
486 | tiop->c_iflag &= ~(ICRNL | INLCR); | |
487 | ||
488 | #if !defined (HANDLE_SIGNALS) | |
489 | tiop->c_lflag &= ~ISIG; | |
490 | #else | |
491 | tiop->c_lflag |= ISIG; | |
492 | #endif | |
493 | ||
494 | tiop->c_cc[VMIN] = 1; | |
495 | tiop->c_cc[VTIME] = 0; | |
496 | ||
497 | #if defined (FLUSHO) | |
498 | if (OUTPUT_BEING_FLUSHED (tiop)) | |
499 | { | |
500 | tiop->c_lflag &= ~FLUSHO; | |
501 | otio.c_lflag &= ~FLUSHO; | |
502 | } | |
503 | #endif | |
504 | ||
505 | /* Turn off characters that we need on Posix systems with job control, | |
506 | just to be sure. This includes ^Y and ^V. This should not really | |
507 | be necessary. */ | |
508 | #if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE) | |
509 | ||
510 | #if defined (VLNEXT) | |
511 | tiop->c_cc[VLNEXT] = _POSIX_VDISABLE; | |
512 | #endif | |
513 | ||
514 | #if defined (VDSUSP) | |
515 | tiop->c_cc[VDSUSP] = _POSIX_VDISABLE; | |
516 | #endif | |
517 | ||
518 | #endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */ | |
519 | } | |
520 | #endif /* NEW_TTY_DRIVER */ | |
521 | ||
522 | /* Put the terminal in CBREAK mode so that we can detect key presses. */ | |
523 | void | |
524 | rl_prep_terminal (meta_flag) | |
525 | int meta_flag; | |
526 | { | |
527 | #if !defined (__GO32__) | |
528 | int tty; | |
529 | TIOTYPE tio; | |
530 | ||
531 | if (terminal_prepped) | |
532 | return; | |
533 | ||
534 | /* Try to keep this function from being INTerrupted. */ | |
535 | block_sigint (); | |
536 | ||
537 | tty = fileno (rl_instream); | |
538 | ||
539 | if (get_tty_settings (tty, &tio) < 0) | |
540 | { | |
541 | release_sigint (); | |
542 | return; | |
543 | } | |
544 | ||
545 | otio = tio; | |
546 | ||
547 | prepare_terminal_settings (meta_flag, otio, &tio); | |
548 | ||
549 | if (set_tty_settings (tty, &tio) < 0) | |
550 | { | |
551 | release_sigint (); | |
552 | return; | |
553 | } | |
554 | ||
555 | if (_rl_enable_keypad) | |
556 | _rl_control_keypad (1); | |
557 | ||
558 | fflush (rl_outstream); | |
559 | terminal_prepped = 1; | |
560 | ||
561 | release_sigint (); | |
562 | #endif /* !__GO32__ */ | |
563 | } | |
564 | ||
565 | /* Restore the terminal's normal settings and modes. */ | |
566 | void | |
567 | rl_deprep_terminal () | |
568 | { | |
569 | #if !defined (__GO32__) | |
570 | int tty; | |
571 | ||
572 | if (!terminal_prepped) | |
573 | return; | |
574 | ||
575 | /* Try to keep this function from being interrupted. */ | |
576 | block_sigint (); | |
577 | ||
578 | tty = fileno (rl_instream); | |
579 | ||
580 | if (_rl_enable_keypad) | |
581 | _rl_control_keypad (0); | |
582 | ||
583 | fflush (rl_outstream); | |
584 | ||
585 | if (set_tty_settings (tty, &otio) < 0) | |
586 | { | |
587 | release_sigint (); | |
588 | return; | |
589 | } | |
590 | ||
591 | terminal_prepped = 0; | |
592 | ||
593 | release_sigint (); | |
594 | #endif /* !__GO32__ */ | |
595 | } | |
596 | \f | |
597 | /* **************************************************************** */ | |
598 | /* */ | |
599 | /* Bogus Flow Control */ | |
600 | /* */ | |
601 | /* **************************************************************** */ | |
602 | ||
603 | int | |
604 | rl_restart_output (count, key) | |
605 | int count, key; | |
606 | { | |
607 | int fildes = fileno (rl_outstream); | |
608 | #if defined (TIOCSTART) | |
609 | #if defined (apollo) | |
610 | ioctl (&fildes, TIOCSTART, 0); | |
611 | #else | |
612 | ioctl (fildes, TIOCSTART, 0); | |
613 | #endif /* apollo */ | |
614 | ||
615 | #else /* !TIOCSTART */ | |
616 | # if defined (TERMIOS_TTY_DRIVER) | |
617 | # if defined (__ksr1__) | |
618 | if (ksrflow) | |
619 | { | |
620 | ksrflow = 0; | |
621 | tcflow (fildes, TCOON); | |
622 | } | |
623 | # else /* !ksr1 */ | |
624 | tcflow (fildes, TCOON); /* Simulate a ^Q. */ | |
625 | # endif /* !ksr1 */ | |
626 | # else /* !TERMIOS_TTY_DRIVER */ | |
627 | # if defined (TCXONC) | |
628 | ioctl (fildes, TCXONC, TCOON); | |
629 | # endif /* TCXONC */ | |
630 | # endif /* !TERMIOS_TTY_DRIVER */ | |
631 | #endif /* !TIOCSTART */ | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
636 | int | |
637 | rl_stop_output (count, key) | |
638 | int count, key; | |
639 | { | |
640 | int fildes = fileno (rl_instream); | |
641 | ||
642 | #if defined (TIOCSTOP) | |
643 | # if defined (apollo) | |
644 | ioctl (&fildes, TIOCSTOP, 0); | |
645 | # else | |
646 | ioctl (fildes, TIOCSTOP, 0); | |
647 | # endif /* apollo */ | |
648 | #else /* !TIOCSTOP */ | |
649 | # if defined (TERMIOS_TTY_DRIVER) | |
650 | # if defined (__ksr1__) | |
651 | ksrflow = 1; | |
652 | # endif /* ksr1 */ | |
653 | tcflow (fildes, TCOOFF); | |
654 | # else | |
655 | # if defined (TCXONC) | |
656 | ioctl (fildes, TCXONC, TCOON); | |
657 | # endif /* TCXONC */ | |
658 | # endif /* !TERMIOS_TTY_DRIVER */ | |
659 | #endif /* !TIOCSTOP */ | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
664 | /* **************************************************************** */ | |
665 | /* */ | |
666 | /* Default Key Bindings */ | |
667 | /* */ | |
668 | /* **************************************************************** */ | |
669 | void | |
670 | rltty_set_default_bindings (kmap) | |
671 | Keymap kmap; | |
672 | { | |
673 | TIOTYPE ttybuff; | |
674 | int tty = fileno (rl_instream); | |
675 | ||
676 | #if defined (NEW_TTY_DRIVER) | |
677 | ||
678 | #define SET_SPECIAL(sc, func) \ | |
679 | do \ | |
680 | { \ | |
681 | int ic; \ | |
682 | ic = sc; \ | |
683 | if (ic != -1 && kmap[ic].type == ISFUNC) \ | |
684 | kmap[ic].function = func; \ | |
685 | } \ | |
686 | while (0) | |
687 | ||
688 | if (get_tty_settings (tty, &ttybuff) == 0) | |
689 | { | |
690 | if (ttybuff.flags & SGTTY_SET) | |
691 | { | |
692 | SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout); | |
693 | SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard); | |
694 | } | |
695 | ||
696 | # if defined (TIOCGLTC) | |
697 | if (ttybuff.flags & LTCHARS_SET) | |
698 | { | |
699 | SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout); | |
700 | SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert); | |
701 | } | |
702 | # endif /* TIOCGLTC */ | |
703 | } | |
704 | ||
705 | #else /* !NEW_TTY_DRIVER */ | |
706 | ||
707 | #define SET_SPECIAL(sc, func) \ | |
708 | do \ | |
709 | { \ | |
710 | unsigned char uc; \ | |
711 | uc = ttybuff.c_cc[sc]; \ | |
712 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \ | |
713 | kmap[uc].function = func; \ | |
714 | } \ | |
715 | while (0) | |
716 | ||
717 | if (get_tty_settings (tty, &ttybuff) == 0) | |
718 | { | |
719 | SET_SPECIAL (VERASE, rl_rubout); | |
720 | SET_SPECIAL (VKILL, rl_unix_line_discard); | |
721 | ||
722 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) | |
723 | SET_SPECIAL (VLNEXT, rl_quoted_insert); | |
724 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ | |
725 | ||
726 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) | |
727 | SET_SPECIAL (VWERASE, rl_unix_word_rubout); | |
728 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ | |
729 | } | |
730 | #endif /* !NEW_TTY_DRIVER */ | |
731 | } |