Commit | Line | Data |
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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 | |
8e99c732 | 71 | #ifndef MSDOS |
d0d6b7c5 | 72 | #include <sgtty.h> |
8e99c732 | 73 | #endif |
a04c9535 JB |
74 | #else /* VMS */ |
75 | #include <descrip.h> | |
76 | static struct iosb | |
77 | { | |
78 | short status; | |
79 | short offset; | |
80 | short termlen; | |
81 | short term; | |
82 | } input_iosb; | |
83 | ||
84 | extern int waiting_for_ast; | |
85 | extern int stop_input; | |
210b2b4f | 86 | #if 0 /* VAX C doeasn't understand initializing declarations */ |
a04c9535 JB |
87 | extern int input_ef = 0; |
88 | extern int timer_ef = 0; | |
89 | extern int process_ef = 0; | |
210b2b4f JB |
90 | #else |
91 | extern int input_ef; | |
92 | extern int timer_ef; | |
93 | extern int process_ef; | |
94 | #endif | |
a04c9535 JB |
95 | extern int input_eflist; |
96 | extern int timer_eflist; | |
97 | ||
98 | static $DESCRIPTOR (input_dsc, "TT"); | |
99 | static int terminator_mask[2] = { 0, 0 }; | |
100 | ||
101 | static struct sensemode { | |
102 | short status; | |
103 | unsigned char xmit_baud; | |
104 | unsigned char rcv_baud; | |
105 | unsigned char crfill; | |
106 | unsigned char lffill; | |
107 | unsigned char parity; | |
108 | unsigned char unused; | |
109 | char class; | |
110 | char type; | |
111 | short scr_wid; | |
112 | unsigned long tt_char : 24, scr_len : 8; | |
113 | unsigned long tt2_char; | |
114 | } sensemode_iosb; | |
115 | #endif /* VMS */ | |
d0d6b7c5 JB |
116 | #endif /* not HAVE_TERMIOS */ |
117 | #endif /* not HAVE_TERMIO */ | |
118 | ||
4746118a JB |
119 | #ifdef AIX |
120 | /* Get files for keyboard remapping */ | |
121 | #define HFNKEYS 2 | |
122 | #include <sys/hft.h> | |
123 | #include <sys/devinfo.h> | |
124 | #endif | |
125 | ||
126 | /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ | |
127 | #ifdef BSD4_1 | |
128 | #undef LLITOUT | |
129 | #define LLITOUT 0 | |
130 | #endif /* 4.1 */ | |
131 | ||
132 | #ifdef NEED_BSDTTY | |
133 | #include <sys/bsdtty.h> | |
134 | #endif | |
135 | ||
136 | #if defined (HPUX) && defined (HAVE_PTYS) | |
137 | #include <sys/ptyio.h> | |
138 | #endif | |
139 | ||
140 | #ifdef AIX | |
141 | #include <sys/pty.h> | |
142 | #include <unistd.h> | |
9825c716 | 143 | #define UNISTD_H_INCLUDED |
4746118a JB |
144 | #endif /* AIX */ |
145 | ||
5ab57b9f RS |
146 | #ifdef IRIX4 |
147 | /* Get _getpty prototype */ | |
148 | #include <unistd.h> | |
9825c716 BF |
149 | #define UNISTD_H_INCLUDED |
150 | #endif | |
151 | ||
152 | #if defined (POSIX) && !defined (UNISTD_H_INCLUDED) && defined (HAVE_UNISTD_H) | |
153 | #include <unistd.h> | |
154 | #define UNISTD_H_INCLUDED | |
5ab57b9f RS |
155 | #endif |
156 | ||
4746118a | 157 | #ifdef SYSV_PTYS |
8243aa4e | 158 | #include <sys/types.h> |
4746118a | 159 | #include <sys/tty.h> |
ffd56f97 JB |
160 | #ifdef titan |
161 | #include <sys/ttyhw.h> | |
162 | #include <sys/stream.h> | |
163 | #endif | |
372d3c2e | 164 | #ifndef NO_PTY_H |
4746118a JB |
165 | #include <sys/pty.h> |
166 | #endif | |
372d3c2e | 167 | #endif |
4746118a JB |
168 | |
169 | /* saka@pfu.fujitsu.co.JP writes: | |
170 | FASYNC defined in this file. But, FASYNC don't working. | |
171 | so no problem, because unrequest_sigio only need. */ | |
172 | #if defined (pfa) | |
173 | #include <sys/file.h> | |
174 | #endif | |
175 | ||
d0d6b7c5 JB |
176 | \f |
177 | /* Special cases - inhibiting the use of certain features. */ | |
178 | ||
179 | #ifdef APOLLO | |
180 | #undef TIOCSTART | |
181 | #endif | |
182 | ||
ffd56f97 JB |
183 | #ifdef XENIX |
184 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
185 | #endif | |
186 | ||
d0d6b7c5 JB |
187 | #ifdef BROKEN_TIOCGETC |
188 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
189 | #endif | |
190 | ||
191 | /* UNIPLUS systems may have FIONREAD. */ | |
192 | #ifdef UNIPLUS | |
193 | #include <sys.ioctl.h> | |
194 | #endif | |
195 | ||
196 | /* Allow m- file to inhibit use of FIONREAD. */ | |
197 | #ifdef BROKEN_FIONREAD | |
198 | #undef FIONREAD | |
199 | #undef ASYNC | |
200 | #endif | |
201 | ||
eb8c3be9 | 202 | /* Interrupt input is not used if there is no FIONREAD. */ |
d0d6b7c5 JB |
203 | #ifndef FIONREAD |
204 | #undef SIGIO | |
205 | #endif | |
206 | ||
50b8cf60 JB |
207 | /* On TERMIOS systems, the tcmumbleattr calls take care of these |
208 | parameters, and it's a bad idea to use them (on AIX, it makes the | |
c39d651c | 209 | tty hang for a long time). */ |
50b8cf60 JB |
210 | #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS) |
211 | #define HAVE_LTCHARS | |
212 | #endif | |
213 | ||
214 | #if defined (TIOCGETC) && !defined (HAVE_TERMIOS) | |
215 | #define HAVE_TCHARS | |
216 | #endif | |
217 | ||
d0d6b7c5 | 218 | \f |
2102829e RS |
219 | /* Try to establish the correct character to disable terminal functions |
220 | in a system-independent manner. Note that USG (at least) define | |
221 | _POSIX_VDISABLE as 0! */ | |
222 | ||
223 | #ifdef _POSIX_VDISABLE | |
224 | #define CDISABLE _POSIX_VDISABLE | |
225 | #else /* not _POSIX_VDISABLE */ | |
226 | #ifdef CDEL | |
d04e8e46 | 227 | #undef CDISABLE |
2102829e RS |
228 | #define CDISABLE CDEL |
229 | #else /* not CDEL */ | |
230 | #define CDISABLE 255 | |
231 | #endif /* not CDEL */ | |
232 | #endif /* not _POSIX_VDISABLE */ | |
233 | \f | |
d0d6b7c5 JB |
234 | /* Get the number of characters queued for output. */ |
235 | ||
236 | /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
237 | queued for output to the terminal FD in *SIZE, if FD is a tty. | |
238 | Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
239 | otherwise. */ | |
240 | #ifdef TIOCOUTQ | |
241 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) | |
242 | #endif | |
243 | ||
244 | #ifdef HAVE_TERMIO | |
245 | #ifdef TCOUTQ | |
246 | #undef EMACS_OUTQSIZE | |
247 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) | |
248 | #endif | |
249 | #endif | |
250 | ||
251 | \f | |
252 | /* Manipulate a terminal's current process group. */ | |
253 | ||
254 | /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current | |
255 | controlling process group. | |
256 | ||
257 | EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's | |
258 | current process group. Return -1 if there is an error. | |
259 | ||
260 | EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's | |
261 | current process group to *PGID. Return -1 if there is an error. */ | |
262 | ||
ffd56f97 JB |
263 | #ifdef HPUX |
264 | /* HPUX tty process group stuff doesn't work, says the anonymous voice | |
265 | from the past. */ | |
266 | #else | |
d0d6b7c5 JB |
267 | #ifdef TIOCGPGRP |
268 | #define EMACS_HAVE_TTY_PGRP | |
269 | #else | |
270 | #ifdef HAVE_TERMIOS | |
271 | #define EMACS_HAVE_TTY_PGRP | |
272 | #endif | |
273 | #endif | |
ffd56f97 | 274 | #endif |
d0d6b7c5 JB |
275 | |
276 | #ifdef EMACS_HAVE_TTY_PGRP | |
277 | ||
75bb6750 | 278 | #if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS) |
d0d6b7c5 JB |
279 | |
280 | #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) | |
161aa2f8 | 281 | #define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid))) |
d0d6b7c5 JB |
282 | |
283 | #else | |
284 | #ifdef TIOCSPGRP | |
285 | ||
286 | #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) | |
287 | #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) | |
288 | ||
289 | #endif | |
290 | #endif | |
291 | ||
292 | #else | |
293 | ||
294 | /* Just ignore this for now and hope for the best */ | |
295 | #define EMACS_GET_TTY_PGRP(fd, pgid) 0 | |
ef15f270 | 296 | #define EMACS_SET_TTY_PGRP(fd, pgif) 0 |
d0d6b7c5 JB |
297 | |
298 | #endif | |
299 | ||
727b007c RS |
300 | /* EMACS_GETPGRP (arg) returns the process group of the terminal. */ |
301 | ||
302 | #if defined (USG) && !defined (GETPGRP_NEEDS_ARG) | |
303 | # if !defined (GETPGRP_NO_ARG) | |
304 | # define GETPGRP_NO_ARG | |
305 | # endif | |
306 | #endif | |
307 | ||
308 | #if defined (GETPGRP_NO_ARG) | |
309 | # define EMACS_GETPGRP(x) getpgrp() | |
310 | #else | |
311 | # define EMACS_GETPGRP(x) getpgrp(x) | |
312 | #endif /* !GETPGRP_NO_ARG */ | |
d0d6b7c5 JB |
313 | \f |
314 | /* Manipulate a TTY's input/output processing parameters. */ | |
315 | ||
316 | /* struct emacs_tty is a structure used to hold the current tty | |
317 | parameters. If the terminal has several structures describing its | |
318 | state, for example a struct tchars, a struct sgttyb, a struct | |
319 | tchars, a struct ltchars, and a struct pagechars, struct | |
320 | emacs_tty should contain an element for each parameter struct | |
321 | that Emacs may change. | |
322 | ||
1334b321 JB |
323 | EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters |
324 | of the tty on FD in *P. Return zero if all's well, or -1 if we ran | |
325 | into an error we couldn't deal with. | |
d0d6b7c5 JB |
326 | |
327 | EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp) | |
328 | sets the parameters of the tty on FD according to the contents of | |
329 | *P. If waitp is non-zero, we wait for all queued output to be | |
330 | written before making the change; otherwise, we forget any queued | |
331 | input and make the change immediately. | |
1334b321 | 332 | Return 0 if all went well, and -1 if anything failed. |
d0d6b7c5 JB |
333 | |
334 | EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel | |
335 | expands tabs to spaces upon output; in that case, there is no | |
336 | advantage to using tabs over spaces. */ | |
337 | ||
338 | ||
d0d6b7c5 | 339 | /* For each tty parameter structure that Emacs might want to save and restore, |
1334b321 JB |
340 | - include an element for it in this structure, and |
341 | - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the | |
342 | new members. */ | |
d0d6b7c5 JB |
343 | |
344 | struct emacs_tty { | |
345 | ||
346 | /* There is always one of the following elements, so there is no need | |
347 | for dummy get and set definitions. */ | |
2182d459 | 348 | #ifdef HAVE_TCATTR |
d0d6b7c5 JB |
349 | struct termios main; |
350 | #else | |
351 | #ifdef HAVE_TERMIO | |
352 | struct termio main; | |
353 | #else | |
354 | #ifdef VMS | |
355 | struct sensemode main; | |
8e99c732 RS |
356 | #else |
357 | #ifdef MSDOS | |
358 | int main; | |
d0d6b7c5 JB |
359 | #else |
360 | struct sgttyb main; | |
361 | #endif | |
362 | #endif | |
363 | #endif | |
8e99c732 | 364 | #endif |
50b8cf60 JB |
365 | |
366 | /* If we have TERMIOS, we don't need to do this - they're taken care of | |
367 | by the tc*attr calls. */ | |
368 | #ifndef HAVE_TERMIOS | |
369 | #ifdef HAVE_LTCHARS | |
2182d459 RS |
370 | struct ltchars ltchars; |
371 | #endif | |
50b8cf60 JB |
372 | |
373 | #ifdef HAVE_TCHARS | |
2182d459 RS |
374 | struct tchars tchars; |
375 | int lmode; | |
d0d6b7c5 | 376 | #endif |
50b8cf60 | 377 | #endif |
2182d459 RS |
378 | }; |
379 | \f | |
380 | /* Define EMACS_GET_TTY and EMACS_SET_TTY, | |
c2e4f49a | 381 | the macros for reading and setting parts of `struct emacs_tty'. |
d0d6b7c5 | 382 | |
c2e4f49a JB |
383 | These got pretty unmanageable (huge macros are hard to debug), and |
384 | finally needed some code which couldn't be done as part of an | |
385 | expression, so we moved them out to their own functions in sysdep.c. */ | |
386 | #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p))) | |
387 | #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp))) | |
d0d6b7c5 | 388 | |
2182d459 RS |
389 | \f |
390 | /* Define EMACS_TTY_TABS_OK. */ | |
d0d6b7c5 JB |
391 | |
392 | #ifdef HAVE_TERMIOS | |
393 | ||
c7040669 | 394 | #ifdef TABDLY |
d0d6b7c5 | 395 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) |
c7040669 RS |
396 | #else |
397 | #define EMACS_TTY_TABS_OK(p) 1 | |
398 | #endif | |
d0d6b7c5 JB |
399 | |
400 | #else /* not def HAVE_TERMIOS */ | |
401 | #ifdef HAVE_TERMIO | |
402 | ||
403 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
404 | ||
405 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ | |
406 | #ifdef VMS | |
407 | ||
408 | #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) | |
409 | ||
410 | #else | |
411 | ||
8e99c732 RS |
412 | #ifdef MSDOS |
413 | #define EMACS_TTY_TABS_OK(p) 0 | |
414 | #else /* not MSDOS */ | |
d0d6b7c5 | 415 | #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) |
8e99c732 | 416 | #endif /* not MSDOS */ |
d0d6b7c5 JB |
417 | |
418 | #endif /* not def VMS */ | |
419 | #endif /* not def HAVE_TERMIO */ | |
420 | #endif /* not def HAVE_TERMIOS */ |