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a04c9535 | 1 | /* systty.h - System-dependent definitions for terminals. |
c6c5df7f | 2 | Copyright (C) 1993 Free Software Foundation, Inc. |
d0d6b7c5 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
2182d459 RS |
20 | #ifdef HAVE_TERMIOS |
21 | #define HAVE_TCATTR | |
22 | #endif | |
7f6d476f RS |
23 | |
24 | /* If we defined these before and we are about to redefine them, | |
25 | prevent alarming warnings. */ | |
26 | #ifdef BSD_TERMIOS | |
27 | #undef NL0 | |
28 | #undef NL1 | |
29 | #undef CR0 | |
30 | #undef CR1 | |
31 | #undef CR2 | |
32 | #undef CR3 | |
33 | #undef TAB0 | |
34 | #undef TAB1 | |
35 | #undef TAB2 | |
36 | #undef XTABS | |
37 | #undef BS0 | |
38 | #undef BS1 | |
39 | #undef FF0 | |
40 | #undef FF1 | |
41 | #undef ECHO | |
42 | #undef NOFLSH | |
43 | #undef TOSTOP | |
44 | #undef FLUSHO | |
45 | #undef PENDIN | |
46 | #endif | |
d0d6b7c5 JB |
47 | \f |
48 | /* Include the proper files. */ | |
49 | #ifdef HAVE_TERMIO | |
0674a1f9 JB |
50 | #ifdef __DGUX |
51 | #include <sys/ioctl.h> | |
52 | #endif | |
d2d846a3 | 53 | #ifndef NO_TERMIO |
d0d6b7c5 | 54 | #include <termio.h> |
d2d846a3 | 55 | #endif /* not NO_TERMIO */ |
d0d6b7c5 JB |
56 | #include <fcntl.h> |
57 | #else | |
58 | #ifdef HAVE_TERMIOS | |
3580badc RS |
59 | #if defined(_AIX) && defined(_I386) |
60 | #include <termios.h> /* termios.h needs to be before termio.h */ | |
61 | #include <termio.h> | |
62 | #else | |
c62e9958 | 63 | #ifndef NO_TERMIO |
d0d6b7c5 | 64 | #include <termio.h> |
c62e9958 | 65 | #endif |
d0d6b7c5 | 66 | #include <termios.h> |
3580badc | 67 | #endif /* _AIX && _I386 */ |
1aaaff21 | 68 | #include <fcntl.h> |
d0d6b7c5 JB |
69 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ |
70 | #ifndef VMS | |
71 | #include <sgtty.h> | |
a04c9535 JB |
72 | #else /* VMS */ |
73 | #include <descrip.h> | |
74 | static struct iosb | |
75 | { | |
76 | short status; | |
77 | short offset; | |
78 | short termlen; | |
79 | short term; | |
80 | } input_iosb; | |
81 | ||
82 | extern int waiting_for_ast; | |
83 | extern int stop_input; | |
210b2b4f | 84 | #if 0 /* VAX C doeasn't understand initializing declarations */ |
a04c9535 JB |
85 | extern int input_ef = 0; |
86 | extern int timer_ef = 0; | |
87 | extern int process_ef = 0; | |
210b2b4f JB |
88 | #else |
89 | extern int input_ef; | |
90 | extern int timer_ef; | |
91 | extern int process_ef; | |
92 | #endif | |
a04c9535 JB |
93 | extern int input_eflist; |
94 | extern int timer_eflist; | |
95 | ||
96 | static $DESCRIPTOR (input_dsc, "TT"); | |
97 | static int terminator_mask[2] = { 0, 0 }; | |
98 | ||
99 | static struct sensemode { | |
100 | short status; | |
101 | unsigned char xmit_baud; | |
102 | unsigned char rcv_baud; | |
103 | unsigned char crfill; | |
104 | unsigned char lffill; | |
105 | unsigned char parity; | |
106 | unsigned char unused; | |
107 | char class; | |
108 | char type; | |
109 | short scr_wid; | |
110 | unsigned long tt_char : 24, scr_len : 8; | |
111 | unsigned long tt2_char; | |
112 | } sensemode_iosb; | |
113 | #endif /* VMS */ | |
d0d6b7c5 JB |
114 | #endif /* not HAVE_TERMIOS */ |
115 | #endif /* not HAVE_TERMIO */ | |
116 | ||
4746118a JB |
117 | #ifdef AIX |
118 | /* Get files for keyboard remapping */ | |
119 | #define HFNKEYS 2 | |
120 | #include <sys/hft.h> | |
121 | #include <sys/devinfo.h> | |
122 | #endif | |
123 | ||
124 | /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ | |
125 | #ifdef BSD4_1 | |
126 | #undef LLITOUT | |
127 | #define LLITOUT 0 | |
128 | #endif /* 4.1 */ | |
129 | ||
130 | #ifdef NEED_BSDTTY | |
131 | #include <sys/bsdtty.h> | |
132 | #endif | |
133 | ||
134 | #if defined (HPUX) && defined (HAVE_PTYS) | |
135 | #include <sys/ptyio.h> | |
136 | #endif | |
137 | ||
138 | #ifdef AIX | |
139 | #include <sys/pty.h> | |
140 | #include <unistd.h> | |
9825c716 | 141 | #define UNISTD_H_INCLUDED |
4746118a JB |
142 | #endif /* AIX */ |
143 | ||
5ab57b9f RS |
144 | #ifdef IRIX4 |
145 | /* Get _getpty prototype */ | |
146 | #include <unistd.h> | |
9825c716 BF |
147 | #define UNISTD_H_INCLUDED |
148 | #endif | |
149 | ||
150 | #if defined (POSIX) && !defined (UNISTD_H_INCLUDED) && defined (HAVE_UNISTD_H) | |
151 | #include <unistd.h> | |
152 | #define UNISTD_H_INCLUDED | |
5ab57b9f RS |
153 | #endif |
154 | ||
4746118a | 155 | #ifdef SYSV_PTYS |
8243aa4e | 156 | #include <sys/types.h> |
4746118a | 157 | #include <sys/tty.h> |
ffd56f97 JB |
158 | #ifdef titan |
159 | #include <sys/ttyhw.h> | |
160 | #include <sys/stream.h> | |
161 | #endif | |
372d3c2e | 162 | #ifndef NO_PTY_H |
4746118a JB |
163 | #include <sys/pty.h> |
164 | #endif | |
372d3c2e | 165 | #endif |
4746118a JB |
166 | |
167 | /* saka@pfu.fujitsu.co.JP writes: | |
168 | FASYNC defined in this file. But, FASYNC don't working. | |
169 | so no problem, because unrequest_sigio only need. */ | |
170 | #if defined (pfa) | |
171 | #include <sys/file.h> | |
172 | #endif | |
173 | ||
d0d6b7c5 JB |
174 | \f |
175 | /* Special cases - inhibiting the use of certain features. */ | |
176 | ||
177 | #ifdef APOLLO | |
178 | #undef TIOCSTART | |
179 | #endif | |
180 | ||
ffd56f97 JB |
181 | #ifdef XENIX |
182 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
183 | #endif | |
184 | ||
d0d6b7c5 JB |
185 | #ifdef BROKEN_TIOCGETC |
186 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
187 | #endif | |
188 | ||
189 | /* UNIPLUS systems may have FIONREAD. */ | |
190 | #ifdef UNIPLUS | |
191 | #include <sys.ioctl.h> | |
192 | #endif | |
193 | ||
194 | /* Allow m- file to inhibit use of FIONREAD. */ | |
195 | #ifdef BROKEN_FIONREAD | |
196 | #undef FIONREAD | |
197 | #undef ASYNC | |
198 | #endif | |
199 | ||
eb8c3be9 | 200 | /* Interrupt input is not used if there is no FIONREAD. */ |
d0d6b7c5 JB |
201 | #ifndef FIONREAD |
202 | #undef SIGIO | |
203 | #endif | |
204 | ||
50b8cf60 JB |
205 | /* On TERMIOS systems, the tcmumbleattr calls take care of these |
206 | parameters, and it's a bad idea to use them (on AIX, it makes the | |
c39d651c | 207 | tty hang for a long time). */ |
50b8cf60 JB |
208 | #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS) |
209 | #define HAVE_LTCHARS | |
210 | #endif | |
211 | ||
212 | #if defined (TIOCGETC) && !defined (HAVE_TERMIOS) | |
213 | #define HAVE_TCHARS | |
214 | #endif | |
215 | ||
d0d6b7c5 | 216 | \f |
2102829e RS |
217 | /* Try to establish the correct character to disable terminal functions |
218 | in a system-independent manner. Note that USG (at least) define | |
219 | _POSIX_VDISABLE as 0! */ | |
220 | ||
221 | #ifdef _POSIX_VDISABLE | |
222 | #define CDISABLE _POSIX_VDISABLE | |
223 | #else /* not _POSIX_VDISABLE */ | |
224 | #ifdef CDEL | |
d04e8e46 | 225 | #undef CDISABLE |
2102829e RS |
226 | #define CDISABLE CDEL |
227 | #else /* not CDEL */ | |
228 | #define CDISABLE 255 | |
229 | #endif /* not CDEL */ | |
230 | #endif /* not _POSIX_VDISABLE */ | |
231 | \f | |
d0d6b7c5 JB |
232 | /* Get the number of characters queued for output. */ |
233 | ||
234 | /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
235 | queued for output to the terminal FD in *SIZE, if FD is a tty. | |
236 | Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
237 | otherwise. */ | |
238 | #ifdef TIOCOUTQ | |
239 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) | |
240 | #endif | |
241 | ||
242 | #ifdef HAVE_TERMIO | |
243 | #ifdef TCOUTQ | |
244 | #undef EMACS_OUTQSIZE | |
245 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) | |
246 | #endif | |
247 | #endif | |
248 | ||
249 | \f | |
250 | /* Manipulate a terminal's current process group. */ | |
251 | ||
252 | /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current | |
253 | controlling process group. | |
254 | ||
255 | EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's | |
256 | current process group. Return -1 if there is an error. | |
257 | ||
258 | EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's | |
259 | current process group to *PGID. Return -1 if there is an error. */ | |
260 | ||
ffd56f97 JB |
261 | #ifdef HPUX |
262 | /* HPUX tty process group stuff doesn't work, says the anonymous voice | |
263 | from the past. */ | |
264 | #else | |
d0d6b7c5 JB |
265 | #ifdef TIOCGPGRP |
266 | #define EMACS_HAVE_TTY_PGRP | |
267 | #else | |
268 | #ifdef HAVE_TERMIOS | |
269 | #define EMACS_HAVE_TTY_PGRP | |
270 | #endif | |
271 | #endif | |
ffd56f97 | 272 | #endif |
d0d6b7c5 JB |
273 | |
274 | #ifdef EMACS_HAVE_TTY_PGRP | |
275 | ||
75bb6750 | 276 | #if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS) |
d0d6b7c5 JB |
277 | |
278 | #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) | |
161aa2f8 | 279 | #define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid))) |
d0d6b7c5 JB |
280 | |
281 | #else | |
282 | #ifdef TIOCSPGRP | |
283 | ||
284 | #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) | |
285 | #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) | |
286 | ||
287 | #endif | |
288 | #endif | |
289 | ||
290 | #else | |
291 | ||
292 | /* Just ignore this for now and hope for the best */ | |
293 | #define EMACS_GET_TTY_PGRP(fd, pgid) 0 | |
ef15f270 | 294 | #define EMACS_SET_TTY_PGRP(fd, pgif) 0 |
d0d6b7c5 JB |
295 | |
296 | #endif | |
297 | ||
727b007c RS |
298 | /* EMACS_GETPGRP (arg) returns the process group of the terminal. */ |
299 | ||
300 | #if defined (USG) && !defined (GETPGRP_NEEDS_ARG) | |
301 | # if !defined (GETPGRP_NO_ARG) | |
302 | # define GETPGRP_NO_ARG | |
303 | # endif | |
304 | #endif | |
305 | ||
306 | #if defined (GETPGRP_NO_ARG) | |
307 | # define EMACS_GETPGRP(x) getpgrp() | |
308 | #else | |
309 | # define EMACS_GETPGRP(x) getpgrp(x) | |
310 | #endif /* !GETPGRP_NO_ARG */ | |
d0d6b7c5 JB |
311 | \f |
312 | /* Manipulate a TTY's input/output processing parameters. */ | |
313 | ||
314 | /* struct emacs_tty is a structure used to hold the current tty | |
315 | parameters. If the terminal has several structures describing its | |
316 | state, for example a struct tchars, a struct sgttyb, a struct | |
317 | tchars, a struct ltchars, and a struct pagechars, struct | |
318 | emacs_tty should contain an element for each parameter struct | |
319 | that Emacs may change. | |
320 | ||
1334b321 JB |
321 | EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters |
322 | of the tty on FD in *P. Return zero if all's well, or -1 if we ran | |
323 | into an error we couldn't deal with. | |
d0d6b7c5 JB |
324 | |
325 | EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp) | |
326 | sets the parameters of the tty on FD according to the contents of | |
327 | *P. If waitp is non-zero, we wait for all queued output to be | |
328 | written before making the change; otherwise, we forget any queued | |
329 | input and make the change immediately. | |
1334b321 | 330 | Return 0 if all went well, and -1 if anything failed. |
d0d6b7c5 JB |
331 | |
332 | EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel | |
333 | expands tabs to spaces upon output; in that case, there is no | |
334 | advantage to using tabs over spaces. */ | |
335 | ||
336 | ||
d0d6b7c5 | 337 | /* For each tty parameter structure that Emacs might want to save and restore, |
1334b321 JB |
338 | - include an element for it in this structure, and |
339 | - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the | |
340 | new members. */ | |
d0d6b7c5 JB |
341 | |
342 | struct emacs_tty { | |
343 | ||
344 | /* There is always one of the following elements, so there is no need | |
345 | for dummy get and set definitions. */ | |
2182d459 | 346 | #ifdef HAVE_TCATTR |
d0d6b7c5 JB |
347 | struct termios main; |
348 | #else | |
349 | #ifdef HAVE_TERMIO | |
350 | struct termio main; | |
351 | #else | |
352 | #ifdef VMS | |
353 | struct sensemode main; | |
354 | #else | |
355 | struct sgttyb main; | |
356 | #endif | |
357 | #endif | |
358 | #endif | |
50b8cf60 JB |
359 | |
360 | /* If we have TERMIOS, we don't need to do this - they're taken care of | |
361 | by the tc*attr calls. */ | |
362 | #ifndef HAVE_TERMIOS | |
363 | #ifdef HAVE_LTCHARS | |
2182d459 RS |
364 | struct ltchars ltchars; |
365 | #endif | |
50b8cf60 JB |
366 | |
367 | #ifdef HAVE_TCHARS | |
2182d459 RS |
368 | struct tchars tchars; |
369 | int lmode; | |
d0d6b7c5 | 370 | #endif |
50b8cf60 | 371 | #endif |
2182d459 RS |
372 | }; |
373 | \f | |
374 | /* Define EMACS_GET_TTY and EMACS_SET_TTY, | |
c2e4f49a | 375 | the macros for reading and setting parts of `struct emacs_tty'. |
d0d6b7c5 | 376 | |
c2e4f49a JB |
377 | These got pretty unmanageable (huge macros are hard to debug), and |
378 | finally needed some code which couldn't be done as part of an | |
379 | expression, so we moved them out to their own functions in sysdep.c. */ | |
380 | #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p))) | |
381 | #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp))) | |
d0d6b7c5 | 382 | |
2182d459 RS |
383 | \f |
384 | /* Define EMACS_TTY_TABS_OK. */ | |
d0d6b7c5 JB |
385 | |
386 | #ifdef HAVE_TERMIOS | |
387 | ||
388 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
389 | ||
390 | #else /* not def HAVE_TERMIOS */ | |
391 | #ifdef HAVE_TERMIO | |
392 | ||
393 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
394 | ||
395 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ | |
396 | #ifdef VMS | |
397 | ||
398 | #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) | |
399 | ||
400 | #else | |
401 | ||
402 | #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) | |
403 | ||
404 | #endif /* not def VMS */ | |
405 | #endif /* not def HAVE_TERMIO */ | |
406 | #endif /* not def HAVE_TERMIOS */ |