Commit | Line | Data |
---|---|---|
d60d9f65 SS |
1 | /* rltty.c -- functions to prepare and restore the terminal for readline's |
2 | use. */ | |
3 | ||
cb41b9e7 | 4 | /* Copyright (C) 1992-2017 Free Software Foundation, Inc. |
d60d9f65 | 5 | |
cc88a640 | 6 | This file is part of the GNU Readline Library (Readline), a library |
775e241e | 7 | for reading lines of text with interactive input and history editing. |
d60d9f65 | 8 | |
cc88a640 JK |
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 | |
d60d9f65 SS |
12 | (at your option) any later version. |
13 | ||
cc88a640 JK |
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 | |
d60d9f65 SS |
17 | GNU General Public License for more details. |
18 | ||
cc88a640 JK |
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 | ||
d60d9f65 SS |
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 | ||
5836a818 | 40 | #include "rltty.h" |
775e241e TT |
41 | #if defined (HAVE_SYS_IOCTL_H) |
42 | # include <sys/ioctl.h> /* include for declaration of ioctl */ | |
43 | #endif | |
44 | ||
d60d9f65 | 45 | #include "readline.h" |
1b17e766 | 46 | #include "rlprivate.h" |
d60d9f65 SS |
47 | |
48 | #if !defined (errno) | |
49 | extern int errno; | |
50 | #endif /* !errno */ | |
51 | ||
9255ee31 EZ |
52 | rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal; |
53 | rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal; | |
54 | ||
9255ee31 | 55 | static void set_winsize PARAMS((int)); |
d60d9f65 | 56 | |
d60d9f65 SS |
57 | /* **************************************************************** */ |
58 | /* */ | |
59 | /* Saving and Restoring the TTY */ | |
60 | /* */ | |
61 | /* **************************************************************** */ | |
62 | ||
775e241e TT |
63 | /* Non-zero means that the terminal is in a prepped state. There are several |
64 | flags that are OR'd in to denote whether or not we have sent various | |
65 | init strings to the terminal. */ | |
66 | #define TPX_PREPPED 0x01 | |
67 | #define TPX_BRACKPASTE 0x02 | |
68 | #define TPX_METAKEY 0x04 | |
69 | ||
d60d9f65 SS |
70 | static int terminal_prepped; |
71 | ||
1b17e766 EZ |
72 | static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars; |
73 | ||
d60d9f65 SS |
74 | /* If non-zero, means that this process has called tcflow(fd, TCOOFF) |
75 | and output is suspended. */ | |
76 | #if defined (__ksr1__) | |
77 | static int ksrflow; | |
78 | #endif | |
79 | ||
d60d9f65 SS |
80 | /* Dummy call to force a backgrounded readline to stop before it tries |
81 | to get the tty settings. */ | |
82 | static void | |
83 | set_winsize (tty) | |
84 | int tty; | |
85 | { | |
1b17e766 | 86 | #if defined (TIOCGWINSZ) |
d60d9f65 SS |
87 | struct winsize w; |
88 | ||
89 | if (ioctl (tty, TIOCGWINSZ, &w) == 0) | |
90 | (void) ioctl (tty, TIOCSWINSZ, &w); | |
c862e87b | 91 | #endif /* TIOCGWINSZ */ |
1b17e766 | 92 | } |
d60d9f65 | 93 | |
fd8be987 MM |
94 | #if defined (NO_TTY_DRIVER) |
95 | /* Nothing */ | |
96 | #elif defined (NEW_TTY_DRIVER) | |
d60d9f65 SS |
97 | |
98 | /* Values for the `flags' field of a struct bsdtty. This tells which | |
99 | elements of the struct bsdtty have been fetched from the system and | |
100 | are valid. */ | |
101 | #define SGTTY_SET 0x01 | |
102 | #define LFLAG_SET 0x02 | |
103 | #define TCHARS_SET 0x04 | |
104 | #define LTCHARS_SET 0x08 | |
105 | ||
106 | struct bsdtty { | |
107 | struct sgttyb sgttyb; /* Basic BSD tty driver information. */ | |
108 | int lflag; /* Local mode flags, like LPASS8. */ | |
109 | #if defined (TIOCGETC) | |
110 | struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */ | |
111 | #endif | |
112 | #if defined (TIOCGLTC) | |
113 | struct ltchars ltchars; /* 4.2 BSD editing characters */ | |
114 | #endif | |
115 | int flags; /* Bitmap saying which parts of the struct are valid. */ | |
116 | }; | |
117 | ||
118 | #define TIOTYPE struct bsdtty | |
119 | ||
120 | static TIOTYPE otio; | |
121 | ||
9255ee31 EZ |
122 | static void save_tty_chars PARAMS((TIOTYPE *)); |
123 | static int _get_tty_settings PARAMS((int, TIOTYPE *)); | |
124 | static int get_tty_settings PARAMS((int, TIOTYPE *)); | |
125 | static int _set_tty_settings PARAMS((int, TIOTYPE *)); | |
126 | static int set_tty_settings PARAMS((int, TIOTYPE *)); | |
127 | ||
128 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *)); | |
129 | ||
775e241e | 130 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t *)); |
5bdf8622 | 131 | |
1b17e766 | 132 | static void |
cb41b9e7 | 133 | save_tty_chars (TIOTYPE *tiop) |
1b17e766 EZ |
134 | { |
135 | _rl_last_tty_chars = _rl_tty_chars; | |
136 | ||
137 | if (tiop->flags & SGTTY_SET) | |
138 | { | |
139 | _rl_tty_chars.t_erase = tiop->sgttyb.sg_erase; | |
140 | _rl_tty_chars.t_kill = tiop->sgttyb.sg_kill; | |
141 | } | |
142 | ||
143 | if (tiop->flags & TCHARS_SET) | |
144 | { | |
cc88a640 JK |
145 | _rl_intr_char = _rl_tty_chars.t_intr = tiop->tchars.t_intrc; |
146 | _rl_quit_char = _rl_tty_chars.t_quit = tiop->tchars.t_quitc; | |
147 | ||
1b17e766 | 148 | _rl_tty_chars.t_start = tiop->tchars.t_startc; |
5844f845 | 149 | _rl_tty_chars.t_stop = tiop->tchars.t_stopc; |
1b17e766 EZ |
150 | _rl_tty_chars.t_eof = tiop->tchars.t_eofc; |
151 | _rl_tty_chars.t_eol = '\n'; | |
152 | _rl_tty_chars.t_eol2 = tiop->tchars.t_brkc; | |
153 | } | |
154 | ||
155 | if (tiop->flags & LTCHARS_SET) | |
156 | { | |
cc88a640 JK |
157 | _rl_susp_char = _rl_tty_chars.t_susp = tiop->ltchars.t_suspc; |
158 | ||
1b17e766 EZ |
159 | _rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc; |
160 | _rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc; | |
161 | _rl_tty_chars.t_flush = tiop->ltchars.t_flushc; | |
162 | _rl_tty_chars.t_werase = tiop->ltchars.t_werasc; | |
163 | _rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc; | |
164 | } | |
165 | ||
166 | _rl_tty_chars.t_status = -1; | |
167 | } | |
168 | ||
d60d9f65 | 169 | static int |
cb41b9e7 | 170 | get_tty_settings (int tty, TIOTYPE *tiop) |
d60d9f65 SS |
171 | { |
172 | set_winsize (tty); | |
173 | ||
174 | tiop->flags = tiop->lflag = 0; | |
175 | ||
5bdf8622 | 176 | errno = 0; |
9255ee31 EZ |
177 | if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0) |
178 | return -1; | |
d60d9f65 SS |
179 | tiop->flags |= SGTTY_SET; |
180 | ||
181 | #if defined (TIOCLGET) | |
9255ee31 EZ |
182 | if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0) |
183 | tiop->flags |= LFLAG_SET; | |
d60d9f65 SS |
184 | #endif |
185 | ||
186 | #if defined (TIOCGETC) | |
9255ee31 EZ |
187 | if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0) |
188 | tiop->flags |= TCHARS_SET; | |
d60d9f65 SS |
189 | #endif |
190 | ||
191 | #if defined (TIOCGLTC) | |
9255ee31 EZ |
192 | if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0) |
193 | tiop->flags |= LTCHARS_SET; | |
d60d9f65 SS |
194 | #endif |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
199 | static int | |
cb41b9e7 | 200 | set_tty_settings (int tty, TIOTYPE *tiop) |
d60d9f65 SS |
201 | { |
202 | if (tiop->flags & SGTTY_SET) | |
203 | { | |
204 | ioctl (tty, TIOCSETN, &(tiop->sgttyb)); | |
205 | tiop->flags &= ~SGTTY_SET; | |
206 | } | |
cc88a640 | 207 | _rl_echoing_p = 1; |
d60d9f65 SS |
208 | |
209 | #if defined (TIOCLSET) | |
210 | if (tiop->flags & LFLAG_SET) | |
211 | { | |
212 | ioctl (tty, TIOCLSET, &(tiop->lflag)); | |
213 | tiop->flags &= ~LFLAG_SET; | |
214 | } | |
215 | #endif | |
216 | ||
217 | #if defined (TIOCSETC) | |
218 | if (tiop->flags & TCHARS_SET) | |
219 | { | |
220 | ioctl (tty, TIOCSETC, &(tiop->tchars)); | |
221 | tiop->flags &= ~TCHARS_SET; | |
222 | } | |
223 | #endif | |
224 | ||
225 | #if defined (TIOCSLTC) | |
226 | if (tiop->flags & LTCHARS_SET) | |
227 | { | |
228 | ioctl (tty, TIOCSLTC, &(tiop->ltchars)); | |
229 | tiop->flags &= ~LTCHARS_SET; | |
230 | } | |
231 | #endif | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | static void | |
cb41b9e7 | 237 | prepare_terminal_settings (int meta_flag, TIOTYPE oldtio, TIOTYPE *tiop) |
d60d9f65 | 238 | { |
cc88a640 JK |
239 | _rl_echoing_p = (oldtio.sgttyb.sg_flags & ECHO); |
240 | _rl_echoctl = (oldtio.sgttyb.sg_flags & ECHOCTL); | |
d60d9f65 SS |
241 | |
242 | /* Copy the original settings to the structure we're going to use for | |
243 | our settings. */ | |
9255ee31 EZ |
244 | tiop->sgttyb = oldtio.sgttyb; |
245 | tiop->lflag = oldtio.lflag; | |
d60d9f65 | 246 | #if defined (TIOCGETC) |
9255ee31 | 247 | tiop->tchars = oldtio.tchars; |
d60d9f65 SS |
248 | #endif |
249 | #if defined (TIOCGLTC) | |
9255ee31 | 250 | tiop->ltchars = oldtio.ltchars; |
d60d9f65 | 251 | #endif |
9255ee31 | 252 | tiop->flags = oldtio.flags; |
d60d9f65 SS |
253 | |
254 | /* First, the basic settings to put us into character-at-a-time, no-echo | |
255 | input mode. */ | |
256 | tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD); | |
257 | tiop->sgttyb.sg_flags |= CBREAK; | |
258 | ||
259 | /* If this terminal doesn't care how the 8th bit is used, then we can | |
260 | use it for the meta-key. If only one of even or odd parity is | |
261 | specified, then the terminal is using parity, and we cannot. */ | |
262 | #if !defined (ANYP) | |
263 | # define ANYP (EVENP | ODDP) | |
264 | #endif | |
9255ee31 EZ |
265 | if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) || |
266 | ((oldtio.sgttyb.sg_flags & ANYP) == 0)) | |
d60d9f65 SS |
267 | { |
268 | tiop->sgttyb.sg_flags |= ANYP; | |
269 | ||
270 | /* Hack on local mode flags if we can. */ | |
271 | #if defined (TIOCLGET) | |
272 | # if defined (LPASS8) | |
273 | tiop->lflag |= LPASS8; | |
274 | # endif /* LPASS8 */ | |
275 | #endif /* TIOCLGET */ | |
276 | } | |
277 | ||
278 | #if defined (TIOCGETC) | |
279 | # if defined (USE_XON_XOFF) | |
280 | /* Get rid of terminal output start and stop characters. */ | |
281 | tiop->tchars.t_stopc = -1; /* C-s */ | |
282 | tiop->tchars.t_startc = -1; /* C-q */ | |
283 | ||
284 | /* If there is an XON character, bind it to restart the output. */ | |
9255ee31 EZ |
285 | if (oldtio.tchars.t_startc != -1) |
286 | rl_bind_key (oldtio.tchars.t_startc, rl_restart_output); | |
d60d9f65 SS |
287 | # endif /* USE_XON_XOFF */ |
288 | ||
289 | /* If there is an EOF char, bind _rl_eof_char to it. */ | |
9255ee31 EZ |
290 | if (oldtio.tchars.t_eofc != -1) |
291 | _rl_eof_char = oldtio.tchars.t_eofc; | |
d60d9f65 SS |
292 | |
293 | # if defined (NO_KILL_INTR) | |
294 | /* Get rid of terminal-generated SIGQUIT and SIGINT. */ | |
295 | tiop->tchars.t_quitc = -1; /* C-\ */ | |
296 | tiop->tchars.t_intrc = -1; /* C-c */ | |
297 | # endif /* NO_KILL_INTR */ | |
298 | #endif /* TIOCGETC */ | |
299 | ||
300 | #if defined (TIOCGLTC) | |
301 | /* Make the interrupt keys go away. Just enough to make people happy. */ | |
302 | tiop->ltchars.t_dsuspc = -1; /* C-y */ | |
303 | tiop->ltchars.t_lnextc = -1; /* C-v */ | |
304 | #endif /* TIOCGLTC */ | |
d60d9f65 SS |
305 | } |
306 | ||
307 | #else /* !defined (NEW_TTY_DRIVER) */ | |
308 | ||
309 | #if !defined (VMIN) | |
310 | # define VMIN VEOF | |
311 | #endif | |
312 | ||
313 | #if !defined (VTIME) | |
314 | # define VTIME VEOL | |
315 | #endif | |
316 | ||
317 | #if defined (TERMIOS_TTY_DRIVER) | |
318 | # define TIOTYPE struct termios | |
319 | # define DRAIN_OUTPUT(fd) tcdrain (fd) | |
320 | # define GETATTR(tty, tiop) (tcgetattr (tty, tiop)) | |
321 | # ifdef M_UNIX | |
322 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop)) | |
323 | # else | |
324 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop)) | |
325 | # endif /* !M_UNIX */ | |
326 | #else | |
327 | # define TIOTYPE struct termio | |
328 | # define DRAIN_OUTPUT(fd) | |
329 | # define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop)) | |
9255ee31 | 330 | # define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop)) |
d60d9f65 SS |
331 | #endif /* !TERMIOS_TTY_DRIVER */ |
332 | ||
333 | static TIOTYPE otio; | |
334 | ||
9255ee31 EZ |
335 | static void save_tty_chars PARAMS((TIOTYPE *)); |
336 | static int _get_tty_settings PARAMS((int, TIOTYPE *)); | |
337 | static int get_tty_settings PARAMS((int, TIOTYPE *)); | |
338 | static int _set_tty_settings PARAMS((int, TIOTYPE *)); | |
339 | static int set_tty_settings PARAMS((int, TIOTYPE *)); | |
340 | ||
341 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *)); | |
342 | ||
775e241e | 343 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t *)); |
5bdf8622 DJ |
344 | static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE)); |
345 | ||
d60d9f65 SS |
346 | #if defined (FLUSHO) |
347 | # define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO) | |
348 | #else | |
349 | # define OUTPUT_BEING_FLUSHED(tp) 0 | |
350 | #endif | |
351 | ||
1b17e766 | 352 | static void |
cb41b9e7 | 353 | save_tty_chars (TIOTYPE *tiop) |
1b17e766 EZ |
354 | { |
355 | _rl_last_tty_chars = _rl_tty_chars; | |
356 | ||
357 | _rl_tty_chars.t_eof = tiop->c_cc[VEOF]; | |
358 | _rl_tty_chars.t_eol = tiop->c_cc[VEOL]; | |
359 | #ifdef VEOL2 | |
360 | _rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2]; | |
361 | #endif | |
362 | _rl_tty_chars.t_erase = tiop->c_cc[VERASE]; | |
363 | #ifdef VWERASE | |
364 | _rl_tty_chars.t_werase = tiop->c_cc[VWERASE]; | |
365 | #endif | |
366 | _rl_tty_chars.t_kill = tiop->c_cc[VKILL]; | |
367 | #ifdef VREPRINT | |
368 | _rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT]; | |
369 | #endif | |
cc88a640 JK |
370 | _rl_intr_char = _rl_tty_chars.t_intr = tiop->c_cc[VINTR]; |
371 | _rl_quit_char = _rl_tty_chars.t_quit = tiop->c_cc[VQUIT]; | |
1b17e766 | 372 | #ifdef VSUSP |
cc88a640 | 373 | _rl_susp_char = _rl_tty_chars.t_susp = tiop->c_cc[VSUSP]; |
1b17e766 EZ |
374 | #endif |
375 | #ifdef VDSUSP | |
376 | _rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP]; | |
377 | #endif | |
378 | #ifdef VSTART | |
379 | _rl_tty_chars.t_start = tiop->c_cc[VSTART]; | |
380 | #endif | |
381 | #ifdef VSTOP | |
382 | _rl_tty_chars.t_stop = tiop->c_cc[VSTOP]; | |
383 | #endif | |
384 | #ifdef VLNEXT | |
385 | _rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT]; | |
386 | #endif | |
387 | #ifdef VDISCARD | |
388 | _rl_tty_chars.t_flush = tiop->c_cc[VDISCARD]; | |
389 | #endif | |
390 | #ifdef VSTATUS | |
391 | _rl_tty_chars.t_status = tiop->c_cc[VSTATUS]; | |
392 | #endif | |
393 | } | |
394 | ||
395 | #if defined (_AIX) || defined (_AIX41) | |
396 | /* Currently this is only used on AIX */ | |
d60d9f65 | 397 | static void |
cb41b9e7 | 398 | rltty_warning (char *msg) |
d60d9f65 | 399 | { |
cc88a640 | 400 | _rl_errmsg ("warning: %s", msg); |
d60d9f65 | 401 | } |
1b17e766 | 402 | #endif |
d60d9f65 SS |
403 | |
404 | #if defined (_AIX) | |
405 | void | |
cb41b9e7 | 406 | setopost (TIOTYPE *tp) |
d60d9f65 SS |
407 | { |
408 | if ((tp->c_oflag & OPOST) == 0) | |
409 | { | |
cc88a640 | 410 | _rl_errmsg ("warning: turning on OPOST for terminal\r"); |
d60d9f65 SS |
411 | tp->c_oflag |= OPOST|ONLCR; |
412 | } | |
413 | } | |
414 | #endif | |
415 | ||
416 | static int | |
cb41b9e7 | 417 | _get_tty_settings (int tty, TIOTYPE *tiop) |
d60d9f65 SS |
418 | { |
419 | int ioctl_ret; | |
c862e87b | 420 | |
d60d9f65 SS |
421 | while (1) |
422 | { | |
423 | ioctl_ret = GETATTR (tty, tiop); | |
424 | if (ioctl_ret < 0) | |
425 | { | |
426 | if (errno != EINTR) | |
427 | return -1; | |
428 | else | |
429 | continue; | |
430 | } | |
431 | if (OUTPUT_BEING_FLUSHED (tiop)) | |
432 | { | |
cc88a640 JK |
433 | #if defined (FLUSHO) |
434 | _rl_errmsg ("warning: turning off output flushing"); | |
d60d9f65 SS |
435 | tiop->c_lflag &= ~FLUSHO; |
436 | break; | |
437 | #else | |
438 | continue; | |
439 | #endif | |
440 | } | |
441 | break; | |
442 | } | |
443 | ||
1b17e766 EZ |
444 | return 0; |
445 | } | |
446 | ||
447 | static int | |
cb41b9e7 | 448 | get_tty_settings (int tty, TIOTYPE *tiop) |
1b17e766 | 449 | { |
1b17e766 | 450 | set_winsize (tty); |
1b17e766 | 451 | |
5bdf8622 | 452 | errno = 0; |
1b17e766 EZ |
453 | if (_get_tty_settings (tty, tiop) < 0) |
454 | return -1; | |
455 | ||
d60d9f65 SS |
456 | #if defined (_AIX) |
457 | setopost(tiop); | |
458 | #endif | |
459 | ||
460 | return 0; | |
461 | } | |
462 | ||
463 | static int | |
cb41b9e7 | 464 | _set_tty_settings (int tty, TIOTYPE *tiop) |
d60d9f65 SS |
465 | { |
466 | while (SETATTR (tty, tiop) < 0) | |
467 | { | |
468 | if (errno != EINTR) | |
469 | return -1; | |
470 | errno = 0; | |
471 | } | |
1b17e766 EZ |
472 | return 0; |
473 | } | |
d60d9f65 | 474 | |
1b17e766 | 475 | static int |
cb41b9e7 | 476 | set_tty_settings (int tty, TIOTYPE *tiop) |
1b17e766 EZ |
477 | { |
478 | if (_set_tty_settings (tty, tiop) < 0) | |
479 | return -1; | |
480 | ||
d60d9f65 SS |
481 | #if 0 |
482 | ||
483 | #if defined (TERMIOS_TTY_DRIVER) | |
484 | # if defined (__ksr1__) | |
485 | if (ksrflow) | |
486 | { | |
487 | ksrflow = 0; | |
488 | tcflow (tty, TCOON); | |
489 | } | |
490 | # else /* !ksr1 */ | |
491 | tcflow (tty, TCOON); /* Simulate a ^Q. */ | |
492 | # endif /* !ksr1 */ | |
493 | #else | |
494 | ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ | |
495 | #endif /* !TERMIOS_TTY_DRIVER */ | |
496 | ||
1b17e766 | 497 | #endif /* 0 */ |
d60d9f65 SS |
498 | |
499 | return 0; | |
500 | } | |
501 | ||
502 | static void | |
cb41b9e7 | 503 | prepare_terminal_settings (int meta_flag, TIOTYPE oldtio, TIOTYPE *tiop) |
d60d9f65 | 504 | { |
cb41b9e7 TT |
505 | int sc; |
506 | Keymap kmap; | |
507 | ||
cc88a640 JK |
508 | _rl_echoing_p = (oldtio.c_lflag & ECHO); |
509 | #if defined (ECHOCTL) | |
510 | _rl_echoctl = (oldtio.c_lflag & ECHOCTL); | |
511 | #endif | |
d60d9f65 SS |
512 | |
513 | tiop->c_lflag &= ~(ICANON | ECHO); | |
514 | ||
9255ee31 EZ |
515 | if ((unsigned char) oldtio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE) |
516 | _rl_eof_char = oldtio.c_cc[VEOF]; | |
d60d9f65 SS |
517 | |
518 | #if defined (USE_XON_XOFF) | |
519 | #if defined (IXANY) | |
775e241e | 520 | tiop->c_iflag &= ~(IXON | IXANY); |
d60d9f65 SS |
521 | #else |
522 | /* `strict' Posix systems do not define IXANY. */ | |
775e241e | 523 | tiop->c_iflag &= ~IXON; |
d60d9f65 SS |
524 | #endif /* IXANY */ |
525 | #endif /* USE_XON_XOFF */ | |
526 | ||
527 | /* Only turn this off if we are using all 8 bits. */ | |
528 | if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag) | |
529 | tiop->c_iflag &= ~(ISTRIP | INPCK); | |
530 | ||
531 | /* Make sure we differentiate between CR and NL on input. */ | |
532 | tiop->c_iflag &= ~(ICRNL | INLCR); | |
533 | ||
534 | #if !defined (HANDLE_SIGNALS) | |
535 | tiop->c_lflag &= ~ISIG; | |
536 | #else | |
537 | tiop->c_lflag |= ISIG; | |
538 | #endif | |
539 | ||
540 | tiop->c_cc[VMIN] = 1; | |
541 | tiop->c_cc[VTIME] = 0; | |
542 | ||
543 | #if defined (FLUSHO) | |
544 | if (OUTPUT_BEING_FLUSHED (tiop)) | |
545 | { | |
546 | tiop->c_lflag &= ~FLUSHO; | |
9255ee31 | 547 | oldtio.c_lflag &= ~FLUSHO; |
d60d9f65 SS |
548 | } |
549 | #endif | |
550 | ||
551 | /* Turn off characters that we need on Posix systems with job control, | |
552 | just to be sure. This includes ^Y and ^V. This should not really | |
553 | be necessary. */ | |
554 | #if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE) | |
555 | ||
556 | #if defined (VLNEXT) | |
557 | tiop->c_cc[VLNEXT] = _POSIX_VDISABLE; | |
558 | #endif | |
559 | ||
560 | #if defined (VDSUSP) | |
561 | tiop->c_cc[VDSUSP] = _POSIX_VDISABLE; | |
562 | #endif | |
563 | ||
cb41b9e7 TT |
564 | /* Conditionally disable some other tty special characters if there is a |
565 | key binding for them in the current keymap. Readline ordinarily doesn't | |
566 | bind these characters, but an application or user might. */ | |
567 | #if defined (VI_MODE) | |
568 | kmap = (rl_editing_mode == vi_mode) ? vi_insertion_keymap : _rl_keymap; | |
569 | #else | |
570 | kmap = _rl_keymap; | |
571 | #endif | |
572 | #if defined (VDISCARD) | |
573 | sc = tiop->c_cc[VDISCARD]; | |
574 | if (sc != _POSIX_VDISABLE && kmap[(unsigned char)sc].type == ISFUNC) | |
575 | tiop->c_cc[VDISCARD] = _POSIX_VDISABLE; | |
576 | #endif /* VDISCARD */ | |
577 | ||
d60d9f65 SS |
578 | #endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */ |
579 | } | |
5bdf8622 | 580 | #endif /* !NEW_TTY_DRIVER */ |
d60d9f65 | 581 | |
5bdf8622 | 582 | /* Put the terminal in CBREAK mode so that we can detect key presses. */ |
fd8be987 MM |
583 | #if defined (NO_TTY_DRIVER) |
584 | void | |
cb41b9e7 | 585 | rl_prep_terminal (int meta_flag) |
fd8be987 | 586 | { |
cc88a640 | 587 | _rl_echoing_p = 1; |
fd8be987 MM |
588 | } |
589 | ||
590 | void | |
cb41b9e7 | 591 | rl_deprep_terminal (void) |
fd8be987 MM |
592 | { |
593 | } | |
594 | ||
595 | #else /* ! NO_TTY_DRIVER */ | |
d60d9f65 | 596 | void |
cb41b9e7 | 597 | rl_prep_terminal (int meta_flag) |
d60d9f65 | 598 | { |
775e241e | 599 | int tty, nprep; |
d60d9f65 SS |
600 | TIOTYPE tio; |
601 | ||
602 | if (terminal_prepped) | |
603 | return; | |
604 | ||
605 | /* Try to keep this function from being INTerrupted. */ | |
87adec2e | 606 | _rl_block_sigint (); |
d60d9f65 | 607 | |
cc88a640 | 608 | tty = rl_instream ? fileno (rl_instream) : fileno (stdin); |
d60d9f65 SS |
609 | |
610 | if (get_tty_settings (tty, &tio) < 0) | |
611 | { | |
5bdf8622 | 612 | #if defined (ENOTSUP) |
cc88a640 JK |
613 | /* MacOS X and Linux, at least, lie about the value of errno if |
614 | tcgetattr fails. */ | |
615 | if (errno == ENOTTY || errno == EINVAL || errno == ENOTSUP) | |
5bdf8622 | 616 | #else |
cc88a640 | 617 | if (errno == ENOTTY || errno == EINVAL) |
5bdf8622 | 618 | #endif |
cc88a640 JK |
619 | _rl_echoing_p = 1; /* XXX */ |
620 | ||
87adec2e | 621 | _rl_release_sigint (); |
d60d9f65 SS |
622 | return; |
623 | } | |
624 | ||
625 | otio = tio; | |
626 | ||
5bdf8622 DJ |
627 | if (_rl_bind_stty_chars) |
628 | { | |
629 | #if defined (VI_MODE) | |
630 | /* If editing in vi mode, make sure we restore the bindings in the | |
631 | insertion keymap no matter what keymap we ended up in. */ | |
632 | if (rl_editing_mode == vi_mode) | |
633 | rl_tty_unset_default_bindings (vi_insertion_keymap); | |
634 | else | |
635 | #endif | |
636 | rl_tty_unset_default_bindings (_rl_keymap); | |
637 | } | |
1b17e766 | 638 | save_tty_chars (&otio); |
5bdf8622 DJ |
639 | RL_SETSTATE(RL_STATE_TTYCSAVED); |
640 | if (_rl_bind_stty_chars) | |
641 | { | |
642 | #if defined (VI_MODE) | |
643 | /* If editing in vi mode, make sure we set the bindings in the | |
644 | insertion keymap no matter what keymap we ended up in. */ | |
645 | if (rl_editing_mode == vi_mode) | |
775e241e | 646 | _rl_bind_tty_special_chars (vi_insertion_keymap, tio); |
5bdf8622 DJ |
647 | else |
648 | #endif | |
649 | _rl_bind_tty_special_chars (_rl_keymap, tio); | |
650 | } | |
1b17e766 | 651 | |
d60d9f65 SS |
652 | prepare_terminal_settings (meta_flag, otio, &tio); |
653 | ||
654 | if (set_tty_settings (tty, &tio) < 0) | |
655 | { | |
87adec2e | 656 | _rl_release_sigint (); |
d60d9f65 SS |
657 | return; |
658 | } | |
659 | ||
660 | if (_rl_enable_keypad) | |
661 | _rl_control_keypad (1); | |
662 | ||
775e241e TT |
663 | nprep = TPX_PREPPED; |
664 | ||
665 | if (_rl_enable_bracketed_paste) | |
666 | { | |
667 | fprintf (rl_outstream, BRACK_PASTE_INIT); | |
668 | nprep |= TPX_BRACKPASTE; | |
669 | } | |
670 | ||
d60d9f65 | 671 | fflush (rl_outstream); |
775e241e | 672 | terminal_prepped = nprep; |
9255ee31 | 673 | RL_SETSTATE(RL_STATE_TERMPREPPED); |
d60d9f65 | 674 | |
87adec2e | 675 | _rl_release_sigint (); |
d60d9f65 SS |
676 | } |
677 | ||
678 | /* Restore the terminal's normal settings and modes. */ | |
679 | void | |
cb41b9e7 | 680 | rl_deprep_terminal (void) |
d60d9f65 | 681 | { |
d60d9f65 SS |
682 | int tty; |
683 | ||
775e241e | 684 | if (terminal_prepped == 0) |
d60d9f65 SS |
685 | return; |
686 | ||
687 | /* Try to keep this function from being interrupted. */ | |
87adec2e | 688 | _rl_block_sigint (); |
d60d9f65 | 689 | |
775e241e TT |
690 | tty = rl_instream ? fileno (rl_instream) : fileno (stdin); |
691 | ||
692 | if (terminal_prepped & TPX_BRACKPASTE) | |
cb41b9e7 TT |
693 | { |
694 | fprintf (rl_outstream, BRACK_PASTE_FINI); | |
695 | if (_rl_eof_found) | |
696 | fprintf (rl_outstream, "\n"); | |
697 | } | |
d60d9f65 SS |
698 | |
699 | if (_rl_enable_keypad) | |
700 | _rl_control_keypad (0); | |
701 | ||
702 | fflush (rl_outstream); | |
703 | ||
704 | if (set_tty_settings (tty, &otio) < 0) | |
705 | { | |
87adec2e | 706 | _rl_release_sigint (); |
d60d9f65 SS |
707 | return; |
708 | } | |
709 | ||
710 | terminal_prepped = 0; | |
9255ee31 | 711 | RL_UNSETSTATE(RL_STATE_TERMPREPPED); |
d60d9f65 | 712 | |
87adec2e | 713 | _rl_release_sigint (); |
d60d9f65 | 714 | } |
fd8be987 | 715 | #endif /* !NO_TTY_DRIVER */ |
775e241e TT |
716 | |
717 | /* Set readline's idea of whether or not it is echoing output to the terminal, | |
718 | returning the old value. */ | |
719 | int | |
cb41b9e7 | 720 | rl_tty_set_echoing (int u) |
775e241e TT |
721 | { |
722 | int o; | |
723 | ||
724 | o = _rl_echoing_p; | |
725 | _rl_echoing_p = u; | |
726 | return o; | |
727 | } | |
d60d9f65 SS |
728 | \f |
729 | /* **************************************************************** */ | |
730 | /* */ | |
731 | /* Bogus Flow Control */ | |
732 | /* */ | |
733 | /* **************************************************************** */ | |
734 | ||
735 | int | |
cb41b9e7 | 736 | rl_restart_output (int count, int key) |
d60d9f65 | 737 | { |
fd8be987 MM |
738 | #if defined (__MINGW32__) |
739 | return 0; | |
740 | #else /* !__MING32__ */ | |
741 | ||
d60d9f65 SS |
742 | int fildes = fileno (rl_outstream); |
743 | #if defined (TIOCSTART) | |
744 | #if defined (apollo) | |
745 | ioctl (&fildes, TIOCSTART, 0); | |
746 | #else | |
747 | ioctl (fildes, TIOCSTART, 0); | |
748 | #endif /* apollo */ | |
749 | ||
750 | #else /* !TIOCSTART */ | |
751 | # if defined (TERMIOS_TTY_DRIVER) | |
752 | # if defined (__ksr1__) | |
753 | if (ksrflow) | |
754 | { | |
755 | ksrflow = 0; | |
756 | tcflow (fildes, TCOON); | |
757 | } | |
758 | # else /* !ksr1 */ | |
759 | tcflow (fildes, TCOON); /* Simulate a ^Q. */ | |
760 | # endif /* !ksr1 */ | |
761 | # else /* !TERMIOS_TTY_DRIVER */ | |
762 | # if defined (TCXONC) | |
763 | ioctl (fildes, TCXONC, TCOON); | |
764 | # endif /* TCXONC */ | |
765 | # endif /* !TERMIOS_TTY_DRIVER */ | |
766 | #endif /* !TIOCSTART */ | |
767 | ||
768 | return 0; | |
fd8be987 | 769 | #endif /* !__MINGW32__ */ |
d60d9f65 SS |
770 | } |
771 | ||
772 | int | |
cb41b9e7 | 773 | rl_stop_output (int count, int key) |
d60d9f65 | 774 | { |
fd8be987 MM |
775 | #if defined (__MINGW32__) |
776 | return 0; | |
777 | #else | |
778 | ||
d60d9f65 SS |
779 | int fildes = fileno (rl_instream); |
780 | ||
781 | #if defined (TIOCSTOP) | |
782 | # if defined (apollo) | |
783 | ioctl (&fildes, TIOCSTOP, 0); | |
784 | # else | |
785 | ioctl (fildes, TIOCSTOP, 0); | |
786 | # endif /* apollo */ | |
787 | #else /* !TIOCSTOP */ | |
788 | # if defined (TERMIOS_TTY_DRIVER) | |
789 | # if defined (__ksr1__) | |
790 | ksrflow = 1; | |
791 | # endif /* ksr1 */ | |
792 | tcflow (fildes, TCOOFF); | |
793 | # else | |
794 | # if defined (TCXONC) | |
795 | ioctl (fildes, TCXONC, TCOON); | |
796 | # endif /* TCXONC */ | |
797 | # endif /* !TERMIOS_TTY_DRIVER */ | |
798 | #endif /* !TIOCSTOP */ | |
799 | ||
800 | return 0; | |
fd8be987 | 801 | #endif /* !__MINGW32__ */ |
d60d9f65 SS |
802 | } |
803 | ||
804 | /* **************************************************************** */ | |
805 | /* */ | |
806 | /* Default Key Bindings */ | |
807 | /* */ | |
808 | /* **************************************************************** */ | |
9255ee31 | 809 | |
fd8be987 | 810 | #if !defined (NO_TTY_DRIVER) |
5bdf8622 DJ |
811 | #define SET_SPECIAL(sc, func) set_special_char(kmap, &ttybuff, sc, func) |
812 | #endif | |
d60d9f65 | 813 | |
5bdf8622 | 814 | #if defined (NO_TTY_DRIVER) |
d60d9f65 | 815 | |
5bdf8622 DJ |
816 | #define SET_SPECIAL(sc, func) |
817 | #define RESET_SPECIAL(c) | |
d60d9f65 | 818 | |
5bdf8622 DJ |
819 | #elif defined (NEW_TTY_DRIVER) |
820 | static void | |
cb41b9e7 | 821 | set_special_char (Keymap kmap, TIOTYPE *tiop, int sc, rl_command_func_t *func) |
5bdf8622 DJ |
822 | { |
823 | if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC) | |
824 | kmap[(unsigned char)sc].function = func; | |
825 | } | |
826 | ||
827 | #define RESET_SPECIAL(c) \ | |
cc88a640 | 828 | if (c != -1 && kmap[(unsigned char)c].type == ISFUNC) \ |
5bdf8622 DJ |
829 | kmap[(unsigned char)c].function = rl_insert; |
830 | ||
831 | static void | |
cb41b9e7 | 832 | _rl_bind_tty_special_chars (Keymap kmap, TIOTYPE ttybuff) |
5bdf8622 DJ |
833 | { |
834 | if (ttybuff.flags & SGTTY_SET) | |
d60d9f65 | 835 | { |
5bdf8622 DJ |
836 | SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout); |
837 | SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard); | |
838 | } | |
d60d9f65 SS |
839 | |
840 | # if defined (TIOCGLTC) | |
5bdf8622 DJ |
841 | if (ttybuff.flags & LTCHARS_SET) |
842 | { | |
843 | SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout); | |
844 | SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert); | |
d60d9f65 | 845 | } |
5bdf8622 DJ |
846 | # endif /* TIOCGLTC */ |
847 | } | |
d60d9f65 SS |
848 | |
849 | #else /* !NEW_TTY_DRIVER */ | |
5bdf8622 | 850 | static void |
cb41b9e7 | 851 | set_special_char (Keymap kmap, TIOTYPE *tiop, int sc, rl_command_func_t *func) |
5bdf8622 DJ |
852 | { |
853 | unsigned char uc; | |
d60d9f65 | 854 | |
5bdf8622 DJ |
855 | uc = tiop->c_cc[sc]; |
856 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) | |
857 | kmap[uc].function = func; | |
858 | } | |
d60d9f65 | 859 | |
5bdf8622 DJ |
860 | /* used later */ |
861 | #define RESET_SPECIAL(uc) \ | |
862 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \ | |
863 | kmap[uc].function = rl_insert; | |
864 | ||
865 | static void | |
cb41b9e7 | 866 | _rl_bind_tty_special_chars (Keymap kmap, TIOTYPE ttybuff) |
5bdf8622 DJ |
867 | { |
868 | SET_SPECIAL (VERASE, rl_rubout); | |
869 | SET_SPECIAL (VKILL, rl_unix_line_discard); | |
d60d9f65 SS |
870 | |
871 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) | |
5bdf8622 | 872 | SET_SPECIAL (VLNEXT, rl_quoted_insert); |
d60d9f65 SS |
873 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ |
874 | ||
875 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) | |
775e241e TT |
876 | # if defined (VI_MODE) |
877 | if (rl_editing_mode == vi_mode) | |
878 | SET_SPECIAL (VWERASE, rl_vi_unix_word_rubout); | |
879 | else | |
880 | # endif | |
5bdf8622 | 881 | SET_SPECIAL (VWERASE, rl_unix_word_rubout); |
d60d9f65 | 882 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ |
5bdf8622 DJ |
883 | } |
884 | ||
d60d9f65 | 885 | #endif /* !NEW_TTY_DRIVER */ |
5bdf8622 DJ |
886 | |
887 | /* Set the system's default editing characters to their readline equivalents | |
888 | in KMAP. Should be static, now that we have rl_tty_set_default_bindings. */ | |
889 | void | |
cb41b9e7 | 890 | rltty_set_default_bindings (Keymap kmap) |
5bdf8622 DJ |
891 | { |
892 | #if !defined (NO_TTY_DRIVER) | |
893 | TIOTYPE ttybuff; | |
894 | int tty; | |
5bdf8622 DJ |
895 | |
896 | tty = fileno (rl_instream); | |
897 | ||
898 | if (get_tty_settings (tty, &ttybuff) == 0) | |
899 | _rl_bind_tty_special_chars (kmap, ttybuff); | |
fd8be987 | 900 | #endif |
d60d9f65 | 901 | } |
1b17e766 | 902 | |
9255ee31 EZ |
903 | /* New public way to set the system default editing chars to their readline |
904 | equivalents. */ | |
905 | void | |
cb41b9e7 | 906 | rl_tty_set_default_bindings (Keymap kmap) |
9255ee31 EZ |
907 | { |
908 | rltty_set_default_bindings (kmap); | |
909 | } | |
910 | ||
5bdf8622 DJ |
911 | /* Rebind all of the tty special chars that readline worries about back |
912 | to self-insert. Call this before saving the current terminal special | |
913 | chars with save_tty_chars(). This only works on POSIX termios or termio | |
914 | systems. */ | |
915 | void | |
cb41b9e7 | 916 | rl_tty_unset_default_bindings (Keymap kmap) |
5bdf8622 DJ |
917 | { |
918 | /* Don't bother before we've saved the tty special chars at least once. */ | |
919 | if (RL_ISSTATE(RL_STATE_TTYCSAVED) == 0) | |
920 | return; | |
921 | ||
922 | RESET_SPECIAL (_rl_tty_chars.t_erase); | |
923 | RESET_SPECIAL (_rl_tty_chars.t_kill); | |
924 | ||
925 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) | |
926 | RESET_SPECIAL (_rl_tty_chars.t_lnext); | |
927 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ | |
928 | ||
929 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) | |
930 | RESET_SPECIAL (_rl_tty_chars.t_werase); | |
931 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ | |
932 | } | |
933 | ||
1b17e766 EZ |
934 | #if defined (HANDLE_SIGNALS) |
935 | ||
fd8be987 | 936 | #if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER) |
1b17e766 | 937 | int |
cb41b9e7 | 938 | _rl_disable_tty_signals (void) |
1b17e766 EZ |
939 | { |
940 | return 0; | |
941 | } | |
942 | ||
943 | int | |
cb41b9e7 | 944 | _rl_restore_tty_signals (void) |
1b17e766 EZ |
945 | { |
946 | return 0; | |
947 | } | |
948 | #else | |
949 | ||
950 | static TIOTYPE sigstty, nosigstty; | |
951 | static int tty_sigs_disabled = 0; | |
952 | ||
953 | int | |
cb41b9e7 | 954 | _rl_disable_tty_signals (void) |
1b17e766 EZ |
955 | { |
956 | if (tty_sigs_disabled) | |
957 | return 0; | |
958 | ||
959 | if (_get_tty_settings (fileno (rl_instream), &sigstty) < 0) | |
960 | return -1; | |
961 | ||
962 | nosigstty = sigstty; | |
963 | ||
964 | nosigstty.c_lflag &= ~ISIG; | |
9255ee31 | 965 | nosigstty.c_iflag &= ~IXON; |
1b17e766 EZ |
966 | |
967 | if (_set_tty_settings (fileno (rl_instream), &nosigstty) < 0) | |
968 | return (_set_tty_settings (fileno (rl_instream), &sigstty)); | |
969 | ||
970 | tty_sigs_disabled = 1; | |
971 | return 0; | |
972 | } | |
973 | ||
974 | int | |
cb41b9e7 | 975 | _rl_restore_tty_signals (void) |
1b17e766 | 976 | { |
9255ee31 EZ |
977 | int r; |
978 | ||
1b17e766 EZ |
979 | if (tty_sigs_disabled == 0) |
980 | return 0; | |
981 | ||
9255ee31 EZ |
982 | r = _set_tty_settings (fileno (rl_instream), &sigstty); |
983 | ||
984 | if (r == 0) | |
985 | tty_sigs_disabled = 0; | |
986 | ||
987 | return r; | |
1b17e766 EZ |
988 | } |
989 | #endif /* !NEW_TTY_DRIVER */ | |
990 | ||
991 | #endif /* HANDLE_SIGNALS */ |