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Commit | Line | Data |
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726f6388 JA |
1 | /* rltty.c -- functions to prepare and restore the terminal for readline's |
2 | use. */ | |
3 | ||
95732b49 | 4 | /* Copyright (C) 1992-2005 Free Software Foundation, Inc. |
726f6388 | 5 | |
3185942a JA |
6 | This file is part of the GNU Readline Library (Readline), a library |
7 | for reading lines of text with interactive input and history editing. | |
726f6388 | 8 | |
3185942a JA |
9 | Readline is free software: you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation, either version 3 of the License, or | |
726f6388 JA |
12 | (at your option) any later version. |
13 | ||
3185942a JA |
14 | Readline is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
726f6388 JA |
17 | GNU General Public License for more details. |
18 | ||
3185942a JA |
19 | You should have received a copy of the GNU General Public License |
20 | along with Readline. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
726f6388 JA |
23 | #define READLINE_LIBRARY |
24 | ||
25 | #if defined (HAVE_CONFIG_H) | |
ccc6cda3 | 26 | # include <config.h> |
726f6388 JA |
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" | |
ccc6cda3 | 39 | |
b72432fd | 40 | #if defined (GWINSZ_IN_SYS_IOCTL) |
ccc6cda3 | 41 | # include <sys/ioctl.h> |
b72432fd | 42 | #endif /* GWINSZ_IN_SYS_IOCTL */ |
ccc6cda3 JA |
43 | |
44 | #include "rltty.h" | |
726f6388 | 45 | #include "readline.h" |
bb70624e | 46 | #include "rlprivate.h" |
726f6388 JA |
47 | |
48 | #if !defined (errno) | |
49 | extern int errno; | |
50 | #endif /* !errno */ | |
51 | ||
28ef6c31 JA |
52 | rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal; |
53 | rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal; | |
ccc6cda3 | 54 | |
f73dda09 JA |
55 | static void set_winsize PARAMS((int)); |
56 | ||
726f6388 JA |
57 | /* **************************************************************** */ |
58 | /* */ | |
59 | /* Saving and Restoring the TTY */ | |
60 | /* */ | |
61 | /* **************************************************************** */ | |
62 | ||
63 | /* Non-zero means that the terminal is in a prepped state. */ | |
ccc6cda3 | 64 | static int terminal_prepped; |
726f6388 | 65 | |
bb70624e JA |
66 | static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars; |
67 | ||
726f6388 JA |
68 | /* If non-zero, means that this process has called tcflow(fd, TCOOFF) |
69 | and output is suspended. */ | |
70 | #if defined (__ksr1__) | |
ccc6cda3 | 71 | static int ksrflow; |
726f6388 | 72 | #endif |
ccc6cda3 | 73 | |
ccc6cda3 JA |
74 | /* Dummy call to force a backgrounded readline to stop before it tries |
75 | to get the tty settings. */ | |
76 | static void | |
77 | set_winsize (tty) | |
78 | int tty; | |
79 | { | |
bb70624e | 80 | #if defined (TIOCGWINSZ) |
ccc6cda3 JA |
81 | struct winsize w; |
82 | ||
83 | if (ioctl (tty, TIOCGWINSZ, &w) == 0) | |
84 | (void) ioctl (tty, TIOCSWINSZ, &w); | |
b72432fd | 85 | #endif /* TIOCGWINSZ */ |
bb70624e | 86 | } |
ccc6cda3 | 87 | |
95732b49 JA |
88 | #if defined (NO_TTY_DRIVER) |
89 | /* Nothing */ | |
90 | #elif defined (NEW_TTY_DRIVER) | |
726f6388 JA |
91 | |
92 | /* Values for the `flags' field of a struct bsdtty. This tells which | |
93 | elements of the struct bsdtty have been fetched from the system and | |
94 | are valid. */ | |
95 | #define SGTTY_SET 0x01 | |
96 | #define LFLAG_SET 0x02 | |
97 | #define TCHARS_SET 0x04 | |
98 | #define LTCHARS_SET 0x08 | |
99 | ||
100 | struct bsdtty { | |
101 | struct sgttyb sgttyb; /* Basic BSD tty driver information. */ | |
102 | int lflag; /* Local mode flags, like LPASS8. */ | |
103 | #if defined (TIOCGETC) | |
104 | struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */ | |
105 | #endif | |
106 | #if defined (TIOCGLTC) | |
107 | struct ltchars ltchars; /* 4.2 BSD editing characters */ | |
108 | #endif | |
109 | int flags; /* Bitmap saying which parts of the struct are valid. */ | |
110 | }; | |
111 | ||
112 | #define TIOTYPE struct bsdtty | |
113 | ||
114 | static TIOTYPE otio; | |
115 | ||
f73dda09 JA |
116 | static void save_tty_chars PARAMS((TIOTYPE *)); |
117 | static int _get_tty_settings PARAMS((int, TIOTYPE *)); | |
118 | static int get_tty_settings PARAMS((int, TIOTYPE *)); | |
119 | static int _set_tty_settings PARAMS((int, TIOTYPE *)); | |
120 | static int set_tty_settings PARAMS((int, TIOTYPE *)); | |
121 | ||
122 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *)); | |
123 | ||
b80f6443 JA |
124 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t)); |
125 | ||
bb70624e JA |
126 | static void |
127 | save_tty_chars (tiop) | |
128 | TIOTYPE *tiop; | |
129 | { | |
130 | _rl_last_tty_chars = _rl_tty_chars; | |
131 | ||
132 | if (tiop->flags & SGTTY_SET) | |
133 | { | |
134 | _rl_tty_chars.t_erase = tiop->sgttyb.sg_erase; | |
135 | _rl_tty_chars.t_kill = tiop->sgttyb.sg_kill; | |
136 | } | |
137 | ||
138 | if (tiop->flags & TCHARS_SET) | |
139 | { | |
3185942a JA |
140 | _rl_intr_char = _rl_tty_chars.t_intr = tiop->tchars.t_intrc; |
141 | _rl_quit_char = _rl_tty_chars.t_quit = tiop->tchars.t_quitc; | |
142 | ||
bb70624e | 143 | _rl_tty_chars.t_start = tiop->tchars.t_startc; |
28ef6c31 | 144 | _rl_tty_chars.t_stop = tiop->tchars.t_stopc; |
bb70624e JA |
145 | _rl_tty_chars.t_eof = tiop->tchars.t_eofc; |
146 | _rl_tty_chars.t_eol = '\n'; | |
147 | _rl_tty_chars.t_eol2 = tiop->tchars.t_brkc; | |
148 | } | |
149 | ||
150 | if (tiop->flags & LTCHARS_SET) | |
151 | { | |
3185942a JA |
152 | _rl_susp_char = _rl_tty_chars.t_susp = tiop->ltchars.t_suspc; |
153 | ||
bb70624e JA |
154 | _rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc; |
155 | _rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc; | |
156 | _rl_tty_chars.t_flush = tiop->ltchars.t_flushc; | |
157 | _rl_tty_chars.t_werase = tiop->ltchars.t_werasc; | |
158 | _rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc; | |
159 | } | |
160 | ||
161 | _rl_tty_chars.t_status = -1; | |
162 | } | |
163 | ||
726f6388 JA |
164 | static int |
165 | get_tty_settings (tty, tiop) | |
166 | int tty; | |
167 | TIOTYPE *tiop; | |
168 | { | |
ccc6cda3 | 169 | set_winsize (tty); |
726f6388 JA |
170 | |
171 | tiop->flags = tiop->lflag = 0; | |
172 | ||
95732b49 | 173 | errno = 0; |
28ef6c31 JA |
174 | if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0) |
175 | return -1; | |
726f6388 JA |
176 | tiop->flags |= SGTTY_SET; |
177 | ||
178 | #if defined (TIOCLGET) | |
28ef6c31 JA |
179 | if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0) |
180 | tiop->flags |= LFLAG_SET; | |
726f6388 JA |
181 | #endif |
182 | ||
183 | #if defined (TIOCGETC) | |
28ef6c31 JA |
184 | if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0) |
185 | tiop->flags |= TCHARS_SET; | |
726f6388 JA |
186 | #endif |
187 | ||
188 | #if defined (TIOCGLTC) | |
28ef6c31 JA |
189 | if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0) |
190 | tiop->flags |= LTCHARS_SET; | |
726f6388 JA |
191 | #endif |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
ccc6cda3 | 196 | static int |
726f6388 JA |
197 | set_tty_settings (tty, tiop) |
198 | int tty; | |
199 | TIOTYPE *tiop; | |
200 | { | |
201 | if (tiop->flags & SGTTY_SET) | |
202 | { | |
203 | ioctl (tty, TIOCSETN, &(tiop->sgttyb)); | |
204 | tiop->flags &= ~SGTTY_SET; | |
205 | } | |
3185942a | 206 | _rl_echoing_p = 1; |
726f6388 JA |
207 | |
208 | #if defined (TIOCLSET) | |
209 | if (tiop->flags & LFLAG_SET) | |
210 | { | |
211 | ioctl (tty, TIOCLSET, &(tiop->lflag)); | |
212 | tiop->flags &= ~LFLAG_SET; | |
213 | } | |
214 | #endif | |
215 | ||
216 | #if defined (TIOCSETC) | |
217 | if (tiop->flags & TCHARS_SET) | |
218 | { | |
219 | ioctl (tty, TIOCSETC, &(tiop->tchars)); | |
220 | tiop->flags &= ~TCHARS_SET; | |
221 | } | |
222 | #endif | |
223 | ||
224 | #if defined (TIOCSLTC) | |
225 | if (tiop->flags & LTCHARS_SET) | |
226 | { | |
227 | ioctl (tty, TIOCSLTC, &(tiop->ltchars)); | |
228 | tiop->flags &= ~LTCHARS_SET; | |
229 | } | |
230 | #endif | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | static void | |
28ef6c31 | 236 | prepare_terminal_settings (meta_flag, oldtio, tiop) |
726f6388 | 237 | int meta_flag; |
28ef6c31 | 238 | TIOTYPE oldtio, *tiop; |
726f6388 | 239 | { |
3185942a JA |
240 | _rl_echoing_p = (oldtio.sgttyb.sg_flags & ECHO); |
241 | _rl_echoctl = (oldtio.sgttyb.sg_flags & ECHOCTL); | |
726f6388 JA |
242 | |
243 | /* Copy the original settings to the structure we're going to use for | |
244 | our settings. */ | |
28ef6c31 JA |
245 | tiop->sgttyb = oldtio.sgttyb; |
246 | tiop->lflag = oldtio.lflag; | |
726f6388 | 247 | #if defined (TIOCGETC) |
28ef6c31 | 248 | tiop->tchars = oldtio.tchars; |
726f6388 JA |
249 | #endif |
250 | #if defined (TIOCGLTC) | |
28ef6c31 | 251 | tiop->ltchars = oldtio.ltchars; |
726f6388 | 252 | #endif |
28ef6c31 | 253 | tiop->flags = oldtio.flags; |
726f6388 JA |
254 | |
255 | /* First, the basic settings to put us into character-at-a-time, no-echo | |
256 | input mode. */ | |
257 | tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD); | |
258 | tiop->sgttyb.sg_flags |= CBREAK; | |
259 | ||
260 | /* If this terminal doesn't care how the 8th bit is used, then we can | |
261 | use it for the meta-key. If only one of even or odd parity is | |
262 | specified, then the terminal is using parity, and we cannot. */ | |
263 | #if !defined (ANYP) | |
264 | # define ANYP (EVENP | ODDP) | |
265 | #endif | |
28ef6c31 JA |
266 | if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) || |
267 | ((oldtio.sgttyb.sg_flags & ANYP) == 0)) | |
726f6388 JA |
268 | { |
269 | tiop->sgttyb.sg_flags |= ANYP; | |
270 | ||
271 | /* Hack on local mode flags if we can. */ | |
272 | #if defined (TIOCLGET) | |
273 | # if defined (LPASS8) | |
274 | tiop->lflag |= LPASS8; | |
275 | # endif /* LPASS8 */ | |
276 | #endif /* TIOCLGET */ | |
277 | } | |
278 | ||
279 | #if defined (TIOCGETC) | |
280 | # if defined (USE_XON_XOFF) | |
281 | /* Get rid of terminal output start and stop characters. */ | |
282 | tiop->tchars.t_stopc = -1; /* C-s */ | |
283 | tiop->tchars.t_startc = -1; /* C-q */ | |
284 | ||
285 | /* If there is an XON character, bind it to restart the output. */ | |
28ef6c31 JA |
286 | if (oldtio.tchars.t_startc != -1) |
287 | rl_bind_key (oldtio.tchars.t_startc, rl_restart_output); | |
726f6388 JA |
288 | # endif /* USE_XON_XOFF */ |
289 | ||
290 | /* If there is an EOF char, bind _rl_eof_char to it. */ | |
28ef6c31 JA |
291 | if (oldtio.tchars.t_eofc != -1) |
292 | _rl_eof_char = oldtio.tchars.t_eofc; | |
726f6388 JA |
293 | |
294 | # if defined (NO_KILL_INTR) | |
295 | /* Get rid of terminal-generated SIGQUIT and SIGINT. */ | |
296 | tiop->tchars.t_quitc = -1; /* C-\ */ | |
297 | tiop->tchars.t_intrc = -1; /* C-c */ | |
298 | # endif /* NO_KILL_INTR */ | |
299 | #endif /* TIOCGETC */ | |
300 | ||
301 | #if defined (TIOCGLTC) | |
302 | /* Make the interrupt keys go away. Just enough to make people happy. */ | |
303 | tiop->ltchars.t_dsuspc = -1; /* C-y */ | |
304 | tiop->ltchars.t_lnextc = -1; /* C-v */ | |
305 | #endif /* TIOCGLTC */ | |
726f6388 JA |
306 | } |
307 | ||
308 | #else /* !defined (NEW_TTY_DRIVER) */ | |
309 | ||
310 | #if !defined (VMIN) | |
311 | # define VMIN VEOF | |
312 | #endif | |
313 | ||
314 | #if !defined (VTIME) | |
315 | # define VTIME VEOL | |
316 | #endif | |
317 | ||
318 | #if defined (TERMIOS_TTY_DRIVER) | |
319 | # define TIOTYPE struct termios | |
320 | # define DRAIN_OUTPUT(fd) tcdrain (fd) | |
321 | # define GETATTR(tty, tiop) (tcgetattr (tty, tiop)) | |
ccc6cda3 JA |
322 | # ifdef M_UNIX |
323 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop)) | |
324 | # else | |
325 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop)) | |
326 | # endif /* !M_UNIX */ | |
726f6388 JA |
327 | #else |
328 | # define TIOTYPE struct termio | |
329 | # define DRAIN_OUTPUT(fd) | |
330 | # define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop)) | |
28ef6c31 | 331 | # define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop)) |
726f6388 JA |
332 | #endif /* !TERMIOS_TTY_DRIVER */ |
333 | ||
334 | static TIOTYPE otio; | |
335 | ||
f73dda09 JA |
336 | static void save_tty_chars PARAMS((TIOTYPE *)); |
337 | static int _get_tty_settings PARAMS((int, TIOTYPE *)); | |
338 | static int get_tty_settings PARAMS((int, TIOTYPE *)); | |
339 | static int _set_tty_settings PARAMS((int, TIOTYPE *)); | |
340 | static int set_tty_settings PARAMS((int, TIOTYPE *)); | |
341 | ||
342 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *)); | |
343 | ||
b80f6443 JA |
344 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t)); |
345 | static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE)); | |
346 | ||
726f6388 JA |
347 | #if defined (FLUSHO) |
348 | # define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO) | |
349 | #else | |
350 | # define OUTPUT_BEING_FLUSHED(tp) 0 | |
351 | #endif | |
352 | ||
bb70624e JA |
353 | static void |
354 | save_tty_chars (tiop) | |
355 | TIOTYPE *tiop; | |
356 | { | |
357 | _rl_last_tty_chars = _rl_tty_chars; | |
358 | ||
359 | _rl_tty_chars.t_eof = tiop->c_cc[VEOF]; | |
360 | _rl_tty_chars.t_eol = tiop->c_cc[VEOL]; | |
361 | #ifdef VEOL2 | |
362 | _rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2]; | |
363 | #endif | |
364 | _rl_tty_chars.t_erase = tiop->c_cc[VERASE]; | |
365 | #ifdef VWERASE | |
366 | _rl_tty_chars.t_werase = tiop->c_cc[VWERASE]; | |
367 | #endif | |
368 | _rl_tty_chars.t_kill = tiop->c_cc[VKILL]; | |
369 | #ifdef VREPRINT | |
370 | _rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT]; | |
371 | #endif | |
3185942a JA |
372 | _rl_intr_char = _rl_tty_chars.t_intr = tiop->c_cc[VINTR]; |
373 | _rl_quit_char = _rl_tty_chars.t_quit = tiop->c_cc[VQUIT]; | |
bb70624e | 374 | #ifdef VSUSP |
3185942a | 375 | _rl_susp_char = _rl_tty_chars.t_susp = tiop->c_cc[VSUSP]; |
bb70624e JA |
376 | #endif |
377 | #ifdef VDSUSP | |
378 | _rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP]; | |
379 | #endif | |
380 | #ifdef VSTART | |
381 | _rl_tty_chars.t_start = tiop->c_cc[VSTART]; | |
382 | #endif | |
383 | #ifdef VSTOP | |
384 | _rl_tty_chars.t_stop = tiop->c_cc[VSTOP]; | |
385 | #endif | |
386 | #ifdef VLNEXT | |
387 | _rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT]; | |
388 | #endif | |
389 | #ifdef VDISCARD | |
390 | _rl_tty_chars.t_flush = tiop->c_cc[VDISCARD]; | |
391 | #endif | |
392 | #ifdef VSTATUS | |
393 | _rl_tty_chars.t_status = tiop->c_cc[VSTATUS]; | |
394 | #endif | |
395 | } | |
396 | ||
397 | #if defined (_AIX) || defined (_AIX41) | |
398 | /* Currently this is only used on AIX */ | |
ccc6cda3 JA |
399 | static void |
400 | rltty_warning (msg) | |
401 | char *msg; | |
402 | { | |
3185942a | 403 | _rl_errmsg ("warning: %s", msg); |
ccc6cda3 | 404 | } |
bb70624e | 405 | #endif |
ccc6cda3 JA |
406 | |
407 | #if defined (_AIX) | |
408 | void | |
409 | setopost(tp) | |
410 | TIOTYPE *tp; | |
411 | { | |
412 | if ((tp->c_oflag & OPOST) == 0) | |
413 | { | |
3185942a | 414 | _rl_errmsg ("warning: turning on OPOST for terminal\r"); |
ccc6cda3 JA |
415 | tp->c_oflag |= OPOST|ONLCR; |
416 | } | |
417 | } | |
418 | #endif | |
419 | ||
726f6388 | 420 | static int |
bb70624e | 421 | _get_tty_settings (tty, tiop) |
726f6388 JA |
422 | int tty; |
423 | TIOTYPE *tiop; | |
424 | { | |
425 | int ioctl_ret; | |
b72432fd | 426 | |
ccc6cda3 | 427 | while (1) |
726f6388 | 428 | { |
ccc6cda3 JA |
429 | ioctl_ret = GETATTR (tty, tiop); |
430 | if (ioctl_ret < 0) | |
431 | { | |
432 | if (errno != EINTR) | |
433 | return -1; | |
434 | else | |
435 | continue; | |
436 | } | |
726f6388 | 437 | if (OUTPUT_BEING_FLUSHED (tiop)) |
ccc6cda3 | 438 | { |
3185942a JA |
439 | #if defined (FLUSHO) |
440 | _rl_errmsg ("warning: turning off output flushing"); | |
ccc6cda3 JA |
441 | tiop->c_lflag &= ~FLUSHO; |
442 | break; | |
443 | #else | |
444 | continue; | |
445 | #endif | |
446 | } | |
447 | break; | |
726f6388 | 448 | } |
ccc6cda3 | 449 | |
bb70624e JA |
450 | return 0; |
451 | } | |
452 | ||
453 | static int | |
454 | get_tty_settings (tty, tiop) | |
455 | int tty; | |
456 | TIOTYPE *tiop; | |
457 | { | |
458 | set_winsize (tty); | |
459 | ||
95732b49 | 460 | errno = 0; |
bb70624e JA |
461 | if (_get_tty_settings (tty, tiop) < 0) |
462 | return -1; | |
463 | ||
ccc6cda3 JA |
464 | #if defined (_AIX) |
465 | setopost(tiop); | |
466 | #endif | |
467 | ||
726f6388 JA |
468 | return 0; |
469 | } | |
470 | ||
471 | static int | |
bb70624e | 472 | _set_tty_settings (tty, tiop) |
726f6388 JA |
473 | int tty; |
474 | TIOTYPE *tiop; | |
475 | { | |
476 | while (SETATTR (tty, tiop) < 0) | |
477 | { | |
478 | if (errno != EINTR) | |
479 | return -1; | |
480 | errno = 0; | |
481 | } | |
bb70624e JA |
482 | return 0; |
483 | } | |
726f6388 | 484 | |
bb70624e JA |
485 | static int |
486 | set_tty_settings (tty, tiop) | |
487 | int tty; | |
488 | TIOTYPE *tiop; | |
489 | { | |
490 | if (_set_tty_settings (tty, tiop) < 0) | |
491 | return -1; | |
492 | ||
726f6388 JA |
493 | #if 0 |
494 | ||
495 | #if defined (TERMIOS_TTY_DRIVER) | |
496 | # if defined (__ksr1__) | |
497 | if (ksrflow) | |
498 | { | |
499 | ksrflow = 0; | |
500 | tcflow (tty, TCOON); | |
501 | } | |
502 | # else /* !ksr1 */ | |
503 | tcflow (tty, TCOON); /* Simulate a ^Q. */ | |
504 | # endif /* !ksr1 */ | |
505 | #else | |
506 | ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ | |
507 | #endif /* !TERMIOS_TTY_DRIVER */ | |
508 | ||
bb70624e | 509 | #endif /* 0 */ |
726f6388 JA |
510 | |
511 | return 0; | |
512 | } | |
513 | ||
514 | static void | |
28ef6c31 | 515 | prepare_terminal_settings (meta_flag, oldtio, tiop) |
726f6388 | 516 | int meta_flag; |
28ef6c31 | 517 | TIOTYPE oldtio, *tiop; |
726f6388 | 518 | { |
3185942a JA |
519 | _rl_echoing_p = (oldtio.c_lflag & ECHO); |
520 | _rl_echoctl = (oldtio.c_lflag & ECHOCTL); | |
726f6388 JA |
521 | |
522 | tiop->c_lflag &= ~(ICANON | ECHO); | |
523 | ||
28ef6c31 JA |
524 | if ((unsigned char) oldtio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE) |
525 | _rl_eof_char = oldtio.c_cc[VEOF]; | |
726f6388 JA |
526 | |
527 | #if defined (USE_XON_XOFF) | |
528 | #if defined (IXANY) | |
529 | tiop->c_iflag &= ~(IXON | IXOFF | IXANY); | |
530 | #else | |
531 | /* `strict' Posix systems do not define IXANY. */ | |
532 | tiop->c_iflag &= ~(IXON | IXOFF); | |
533 | #endif /* IXANY */ | |
534 | #endif /* USE_XON_XOFF */ | |
535 | ||
536 | /* Only turn this off if we are using all 8 bits. */ | |
537 | if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag) | |
538 | tiop->c_iflag &= ~(ISTRIP | INPCK); | |
539 | ||
540 | /* Make sure we differentiate between CR and NL on input. */ | |
541 | tiop->c_iflag &= ~(ICRNL | INLCR); | |
542 | ||
543 | #if !defined (HANDLE_SIGNALS) | |
544 | tiop->c_lflag &= ~ISIG; | |
545 | #else | |
546 | tiop->c_lflag |= ISIG; | |
547 | #endif | |
548 | ||
549 | tiop->c_cc[VMIN] = 1; | |
550 | tiop->c_cc[VTIME] = 0; | |
551 | ||
552 | #if defined (FLUSHO) | |
553 | if (OUTPUT_BEING_FLUSHED (tiop)) | |
554 | { | |
555 | tiop->c_lflag &= ~FLUSHO; | |
28ef6c31 | 556 | oldtio.c_lflag &= ~FLUSHO; |
726f6388 JA |
557 | } |
558 | #endif | |
559 | ||
560 | /* Turn off characters that we need on Posix systems with job control, | |
561 | just to be sure. This includes ^Y and ^V. This should not really | |
562 | be necessary. */ | |
563 | #if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE) | |
564 | ||
565 | #if defined (VLNEXT) | |
566 | tiop->c_cc[VLNEXT] = _POSIX_VDISABLE; | |
567 | #endif | |
568 | ||
569 | #if defined (VDSUSP) | |
570 | tiop->c_cc[VDSUSP] = _POSIX_VDISABLE; | |
571 | #endif | |
572 | ||
573 | #endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */ | |
574 | } | |
95732b49 | 575 | #endif /* !NEW_TTY_DRIVER */ |
726f6388 JA |
576 | |
577 | /* Put the terminal in CBREAK mode so that we can detect key presses. */ | |
95732b49 JA |
578 | #if defined (NO_TTY_DRIVER) |
579 | void | |
580 | rl_prep_terminal (meta_flag) | |
581 | int meta_flag; | |
582 | { | |
3185942a | 583 | _rl_echoing_p = 1; |
95732b49 JA |
584 | } |
585 | ||
586 | void | |
587 | rl_deprep_terminal () | |
588 | { | |
589 | } | |
590 | ||
591 | #else /* ! NO_TTY_DRIVER */ | |
726f6388 JA |
592 | void |
593 | rl_prep_terminal (meta_flag) | |
594 | int meta_flag; | |
595 | { | |
ccc6cda3 | 596 | int tty; |
726f6388 JA |
597 | TIOTYPE tio; |
598 | ||
599 | if (terminal_prepped) | |
600 | return; | |
601 | ||
602 | /* Try to keep this function from being INTerrupted. */ | |
3185942a | 603 | _rl_block_sigint (); |
726f6388 | 604 | |
ccc6cda3 JA |
605 | tty = fileno (rl_instream); |
606 | ||
726f6388 JA |
607 | if (get_tty_settings (tty, &tio) < 0) |
608 | { | |
95732b49 | 609 | #if defined (ENOTSUP) |
3185942a JA |
610 | /* MacOS X and Linux, at least, lie about the value of errno if |
611 | tcgetattr fails. */ | |
612 | if (errno == ENOTTY || errno == EINVAL || errno == ENOTSUP) | |
95732b49 | 613 | #else |
3185942a | 614 | if (errno == ENOTTY || errno == EINVAL) |
95732b49 | 615 | #endif |
3185942a JA |
616 | _rl_echoing_p = 1; /* XXX */ |
617 | ||
618 | _rl_release_sigint (); | |
726f6388 JA |
619 | return; |
620 | } | |
621 | ||
622 | otio = tio; | |
623 | ||
95732b49 JA |
624 | if (_rl_bind_stty_chars) |
625 | { | |
626 | #if defined (VI_MODE) | |
627 | /* If editing in vi mode, make sure we restore the bindings in the | |
628 | insertion keymap no matter what keymap we ended up in. */ | |
629 | if (rl_editing_mode == vi_mode) | |
630 | rl_tty_unset_default_bindings (vi_insertion_keymap); | |
631 | else | |
632 | #endif | |
633 | rl_tty_unset_default_bindings (_rl_keymap); | |
634 | } | |
bb70624e | 635 | save_tty_chars (&otio); |
b80f6443 | 636 | RL_SETSTATE(RL_STATE_TTYCSAVED); |
95732b49 JA |
637 | if (_rl_bind_stty_chars) |
638 | { | |
639 | #if defined (VI_MODE) | |
640 | /* If editing in vi mode, make sure we set the bindings in the | |
641 | insertion keymap no matter what keymap we ended up in. */ | |
642 | if (rl_editing_mode == vi_mode) | |
643 | _rl_bind_tty_special_chars (vi_insertion_keymap, tio); | |
644 | else | |
645 | #endif | |
646 | _rl_bind_tty_special_chars (_rl_keymap, tio); | |
647 | } | |
bb70624e | 648 | |
726f6388 JA |
649 | prepare_terminal_settings (meta_flag, otio, &tio); |
650 | ||
651 | if (set_tty_settings (tty, &tio) < 0) | |
652 | { | |
3185942a | 653 | _rl_release_sigint (); |
726f6388 JA |
654 | return; |
655 | } | |
656 | ||
ccc6cda3 JA |
657 | if (_rl_enable_keypad) |
658 | _rl_control_keypad (1); | |
659 | ||
726f6388 JA |
660 | fflush (rl_outstream); |
661 | terminal_prepped = 1; | |
28ef6c31 | 662 | RL_SETSTATE(RL_STATE_TERMPREPPED); |
726f6388 | 663 | |
3185942a | 664 | _rl_release_sigint (); |
726f6388 JA |
665 | } |
666 | ||
667 | /* Restore the terminal's normal settings and modes. */ | |
668 | void | |
669 | rl_deprep_terminal () | |
670 | { | |
ccc6cda3 | 671 | int tty; |
726f6388 JA |
672 | |
673 | if (!terminal_prepped) | |
674 | return; | |
675 | ||
ccc6cda3 | 676 | /* Try to keep this function from being interrupted. */ |
3185942a | 677 | _rl_block_sigint (); |
726f6388 | 678 | |
ccc6cda3 JA |
679 | tty = fileno (rl_instream); |
680 | ||
681 | if (_rl_enable_keypad) | |
682 | _rl_control_keypad (0); | |
683 | ||
726f6388 JA |
684 | fflush (rl_outstream); |
685 | ||
686 | if (set_tty_settings (tty, &otio) < 0) | |
687 | { | |
3185942a | 688 | _rl_release_sigint (); |
726f6388 JA |
689 | return; |
690 | } | |
691 | ||
692 | terminal_prepped = 0; | |
28ef6c31 | 693 | RL_UNSETSTATE(RL_STATE_TERMPREPPED); |
726f6388 | 694 | |
3185942a | 695 | _rl_release_sigint (); |
726f6388 | 696 | } |
95732b49 | 697 | #endif /* !NO_TTY_DRIVER */ |
726f6388 JA |
698 | \f |
699 | /* **************************************************************** */ | |
700 | /* */ | |
701 | /* Bogus Flow Control */ | |
702 | /* */ | |
703 | /* **************************************************************** */ | |
704 | ||
ccc6cda3 | 705 | int |
726f6388 JA |
706 | rl_restart_output (count, key) |
707 | int count, key; | |
708 | { | |
95732b49 JA |
709 | #if defined (__MINGW32__) |
710 | return 0; | |
711 | #else /* !__MING32__ */ | |
712 | ||
726f6388 JA |
713 | int fildes = fileno (rl_outstream); |
714 | #if defined (TIOCSTART) | |
715 | #if defined (apollo) | |
716 | ioctl (&fildes, TIOCSTART, 0); | |
717 | #else | |
718 | ioctl (fildes, TIOCSTART, 0); | |
719 | #endif /* apollo */ | |
720 | ||
721 | #else /* !TIOCSTART */ | |
722 | # if defined (TERMIOS_TTY_DRIVER) | |
723 | # if defined (__ksr1__) | |
724 | if (ksrflow) | |
725 | { | |
726 | ksrflow = 0; | |
727 | tcflow (fildes, TCOON); | |
728 | } | |
729 | # else /* !ksr1 */ | |
730 | tcflow (fildes, TCOON); /* Simulate a ^Q. */ | |
731 | # endif /* !ksr1 */ | |
732 | # else /* !TERMIOS_TTY_DRIVER */ | |
733 | # if defined (TCXONC) | |
734 | ioctl (fildes, TCXONC, TCOON); | |
735 | # endif /* TCXONC */ | |
736 | # endif /* !TERMIOS_TTY_DRIVER */ | |
737 | #endif /* !TIOCSTART */ | |
738 | ||
739 | return 0; | |
95732b49 | 740 | #endif /* !__MINGW32__ */ |
726f6388 JA |
741 | } |
742 | ||
ccc6cda3 | 743 | int |
726f6388 JA |
744 | rl_stop_output (count, key) |
745 | int count, key; | |
746 | { | |
95732b49 JA |
747 | #if defined (__MINGW32__) |
748 | return 0; | |
749 | #else | |
750 | ||
726f6388 JA |
751 | int fildes = fileno (rl_instream); |
752 | ||
753 | #if defined (TIOCSTOP) | |
754 | # if defined (apollo) | |
755 | ioctl (&fildes, TIOCSTOP, 0); | |
756 | # else | |
757 | ioctl (fildes, TIOCSTOP, 0); | |
758 | # endif /* apollo */ | |
759 | #else /* !TIOCSTOP */ | |
760 | # if defined (TERMIOS_TTY_DRIVER) | |
761 | # if defined (__ksr1__) | |
762 | ksrflow = 1; | |
763 | # endif /* ksr1 */ | |
764 | tcflow (fildes, TCOOFF); | |
765 | # else | |
766 | # if defined (TCXONC) | |
767 | ioctl (fildes, TCXONC, TCOON); | |
768 | # endif /* TCXONC */ | |
769 | # endif /* !TERMIOS_TTY_DRIVER */ | |
770 | #endif /* !TIOCSTOP */ | |
771 | ||
772 | return 0; | |
95732b49 | 773 | #endif /* !__MINGW32__ */ |
726f6388 | 774 | } |
ccc6cda3 | 775 | |
726f6388 JA |
776 | /* **************************************************************** */ |
777 | /* */ | |
778 | /* Default Key Bindings */ | |
779 | /* */ | |
780 | /* **************************************************************** */ | |
28ef6c31 | 781 | |
95732b49 | 782 | #if !defined (NO_TTY_DRIVER) |
b80f6443 | 783 | #define SET_SPECIAL(sc, func) set_special_char(kmap, &ttybuff, sc, func) |
95732b49 | 784 | #endif |
726f6388 | 785 | |
95732b49 JA |
786 | #if defined (NO_TTY_DRIVER) |
787 | ||
788 | #define SET_SPECIAL(sc, func) | |
789 | #define RESET_SPECIAL(c) | |
790 | ||
791 | #elif defined (NEW_TTY_DRIVER) | |
b80f6443 JA |
792 | static void |
793 | set_special_char (kmap, tiop, sc, func) | |
794 | Keymap kmap; | |
795 | TIOTYPE *tiop; | |
796 | int sc; | |
797 | rl_command_func_t *func; | |
798 | { | |
799 | if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC) | |
800 | kmap[(unsigned char)sc].function = func; | |
801 | } | |
726f6388 | 802 | |
b80f6443 | 803 | #define RESET_SPECIAL(c) \ |
3185942a | 804 | if (c != -1 && kmap[(unsigned char)c].type == ISFUNC) \ |
b80f6443 | 805 | kmap[(unsigned char)c].function = rl_insert; |
726f6388 | 806 | |
b80f6443 JA |
807 | static void |
808 | _rl_bind_tty_special_chars (kmap, ttybuff) | |
809 | Keymap kmap; | |
810 | TIOTYPE ttybuff; | |
811 | { | |
812 | if (ttybuff.flags & SGTTY_SET) | |
726f6388 | 813 | { |
b80f6443 JA |
814 | SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout); |
815 | SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard); | |
816 | } | |
726f6388 JA |
817 | |
818 | # if defined (TIOCGLTC) | |
b80f6443 JA |
819 | if (ttybuff.flags & LTCHARS_SET) |
820 | { | |
821 | SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout); | |
822 | SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert); | |
726f6388 | 823 | } |
b80f6443 JA |
824 | # endif /* TIOCGLTC */ |
825 | } | |
726f6388 JA |
826 | |
827 | #else /* !NEW_TTY_DRIVER */ | |
b80f6443 JA |
828 | static void |
829 | set_special_char (kmap, tiop, sc, func) | |
830 | Keymap kmap; | |
831 | TIOTYPE *tiop; | |
832 | int sc; | |
833 | rl_command_func_t *func; | |
834 | { | |
835 | unsigned char uc; | |
726f6388 | 836 | |
b80f6443 JA |
837 | uc = tiop->c_cc[sc]; |
838 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) | |
839 | kmap[uc].function = func; | |
840 | } | |
726f6388 | 841 | |
b80f6443 JA |
842 | /* used later */ |
843 | #define RESET_SPECIAL(uc) \ | |
844 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \ | |
845 | kmap[uc].function = rl_insert; | |
846 | ||
847 | static void | |
848 | _rl_bind_tty_special_chars (kmap, ttybuff) | |
849 | Keymap kmap; | |
850 | TIOTYPE ttybuff; | |
851 | { | |
852 | SET_SPECIAL (VERASE, rl_rubout); | |
853 | SET_SPECIAL (VKILL, rl_unix_line_discard); | |
726f6388 JA |
854 | |
855 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) | |
b80f6443 | 856 | SET_SPECIAL (VLNEXT, rl_quoted_insert); |
726f6388 JA |
857 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ |
858 | ||
859 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) | |
b80f6443 | 860 | SET_SPECIAL (VWERASE, rl_unix_word_rubout); |
726f6388 | 861 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ |
b80f6443 JA |
862 | } |
863 | ||
726f6388 | 864 | #endif /* !NEW_TTY_DRIVER */ |
b80f6443 JA |
865 | |
866 | /* Set the system's default editing characters to their readline equivalents | |
867 | in KMAP. Should be static, now that we have rl_tty_set_default_bindings. */ | |
868 | void | |
869 | rltty_set_default_bindings (kmap) | |
870 | Keymap kmap; | |
871 | { | |
95732b49 | 872 | #if !defined (NO_TTY_DRIVER) |
b80f6443 JA |
873 | TIOTYPE ttybuff; |
874 | int tty; | |
b80f6443 JA |
875 | |
876 | tty = fileno (rl_instream); | |
877 | ||
878 | if (get_tty_settings (tty, &ttybuff) == 0) | |
879 | _rl_bind_tty_special_chars (kmap, ttybuff); | |
95732b49 | 880 | #endif |
726f6388 | 881 | } |
bb70624e | 882 | |
28ef6c31 JA |
883 | /* New public way to set the system default editing chars to their readline |
884 | equivalents. */ | |
885 | void | |
886 | rl_tty_set_default_bindings (kmap) | |
887 | Keymap kmap; | |
888 | { | |
889 | rltty_set_default_bindings (kmap); | |
890 | } | |
891 | ||
b80f6443 JA |
892 | /* Rebind all of the tty special chars that readline worries about back |
893 | to self-insert. Call this before saving the current terminal special | |
894 | chars with save_tty_chars(). This only works on POSIX termios or termio | |
895 | systems. */ | |
896 | void | |
897 | rl_tty_unset_default_bindings (kmap) | |
898 | Keymap kmap; | |
899 | { | |
900 | /* Don't bother before we've saved the tty special chars at least once. */ | |
901 | if (RL_ISSTATE(RL_STATE_TTYCSAVED) == 0) | |
902 | return; | |
903 | ||
904 | RESET_SPECIAL (_rl_tty_chars.t_erase); | |
905 | RESET_SPECIAL (_rl_tty_chars.t_kill); | |
906 | ||
907 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) | |
908 | RESET_SPECIAL (_rl_tty_chars.t_lnext); | |
909 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ | |
910 | ||
911 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) | |
912 | RESET_SPECIAL (_rl_tty_chars.t_werase); | |
913 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ | |
914 | } | |
915 | ||
bb70624e JA |
916 | #if defined (HANDLE_SIGNALS) |
917 | ||
95732b49 | 918 | #if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER) |
bb70624e JA |
919 | int |
920 | _rl_disable_tty_signals () | |
921 | { | |
922 | return 0; | |
923 | } | |
924 | ||
925 | int | |
926 | _rl_restore_tty_signals () | |
927 | { | |
928 | return 0; | |
929 | } | |
930 | #else | |
931 | ||
932 | static TIOTYPE sigstty, nosigstty; | |
933 | static int tty_sigs_disabled = 0; | |
934 | ||
935 | int | |
936 | _rl_disable_tty_signals () | |
937 | { | |
938 | if (tty_sigs_disabled) | |
939 | return 0; | |
940 | ||
941 | if (_get_tty_settings (fileno (rl_instream), &sigstty) < 0) | |
942 | return -1; | |
943 | ||
944 | nosigstty = sigstty; | |
945 | ||
946 | nosigstty.c_lflag &= ~ISIG; | |
f73dda09 | 947 | nosigstty.c_iflag &= ~IXON; |
bb70624e JA |
948 | |
949 | if (_set_tty_settings (fileno (rl_instream), &nosigstty) < 0) | |
950 | return (_set_tty_settings (fileno (rl_instream), &sigstty)); | |
951 | ||
952 | tty_sigs_disabled = 1; | |
953 | return 0; | |
954 | } | |
955 | ||
956 | int | |
957 | _rl_restore_tty_signals () | |
958 | { | |
f73dda09 JA |
959 | int r; |
960 | ||
bb70624e JA |
961 | if (tty_sigs_disabled == 0) |
962 | return 0; | |
963 | ||
f73dda09 JA |
964 | r = _set_tty_settings (fileno (rl_instream), &sigstty); |
965 | ||
966 | if (r == 0) | |
967 | tty_sigs_disabled = 0; | |
968 | ||
969 | return r; | |
bb70624e JA |
970 | } |
971 | #endif /* !NEW_TTY_DRIVER */ | |
972 | ||
973 | #endif /* HANDLE_SIGNALS */ |