Commit | Line | Data |
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a04c9535 | 1 | /* systty.h - System-dependent definitions for terminals. |
3a22ee35 | 2 | Copyright (C) 1993, 1994 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 | |
101adcb5 | 8 | the Free Software Foundation; either version 2, or (at your option) |
d0d6b7c5 JB |
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
d0d6b7c5 | 20 | |
2182d459 RS |
21 | #ifdef HAVE_TERMIOS |
22 | #define HAVE_TCATTR | |
23 | #endif | |
7f6d476f RS |
24 | |
25 | /* If we defined these before and we are about to redefine them, | |
26 | prevent alarming warnings. */ | |
27 | #ifdef BSD_TERMIOS | |
28 | #undef NL0 | |
29 | #undef NL1 | |
30 | #undef CR0 | |
31 | #undef CR1 | |
32 | #undef CR2 | |
33 | #undef CR3 | |
34 | #undef TAB0 | |
35 | #undef TAB1 | |
36 | #undef TAB2 | |
37 | #undef XTABS | |
38 | #undef BS0 | |
39 | #undef BS1 | |
40 | #undef FF0 | |
41 | #undef FF1 | |
42 | #undef ECHO | |
43 | #undef NOFLSH | |
44 | #undef TOSTOP | |
45 | #undef FLUSHO | |
46 | #undef PENDIN | |
47 | #endif | |
d0d6b7c5 JB |
48 | \f |
49 | /* Include the proper files. */ | |
50 | #ifdef HAVE_TERMIO | |
0674a1f9 JB |
51 | #ifdef __DGUX |
52 | #include <sys/ioctl.h> | |
53 | #endif | |
d2d846a3 | 54 | #ifndef NO_TERMIO |
d0d6b7c5 | 55 | #include <termio.h> |
d2d846a3 | 56 | #endif /* not NO_TERMIO */ |
92ea836d | 57 | #ifndef INCLUDED_FCNTL |
b65e3dd7 | 58 | #define INCLUDED_FCNTL |
d0d6b7c5 | 59 | #include <fcntl.h> |
92ea836d RS |
60 | #endif |
61 | #else /* not HAVE_TERMIO */ | |
d0d6b7c5 | 62 | #ifdef HAVE_TERMIOS |
3580badc RS |
63 | #if defined(_AIX) && defined(_I386) |
64 | #include <termios.h> /* termios.h needs to be before termio.h */ | |
65 | #include <termio.h> | |
ab9ba9ea | 66 | #else /* not (_AIX && _I386) */ |
c62e9958 | 67 | #ifndef NO_TERMIO |
d0d6b7c5 | 68 | #include <termio.h> |
c62e9958 | 69 | #endif |
d0d6b7c5 | 70 | #include <termios.h> |
ab9ba9ea | 71 | #endif /* not (_AIX && _I386) */ |
b65e3dd7 | 72 | #define INCLUDED_FCNTL |
1aaaff21 | 73 | #include <fcntl.h> |
d0d6b7c5 JB |
74 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ |
75 | #ifndef VMS | |
101adcb5 | 76 | #ifndef DOS_NT |
d0d6b7c5 | 77 | #include <sgtty.h> |
101adcb5 | 78 | #endif /* not DOS_NT */ |
a04c9535 JB |
79 | #else /* VMS */ |
80 | #include <descrip.h> | |
81 | static struct iosb | |
82 | { | |
83 | short status; | |
84 | short offset; | |
85 | short termlen; | |
86 | short term; | |
87 | } input_iosb; | |
88 | ||
89 | extern int waiting_for_ast; | |
90 | extern int stop_input; | |
210b2b4f JB |
91 | extern int input_ef; |
92 | extern int timer_ef; | |
93 | extern int process_ef; | |
a04c9535 JB |
94 | extern int input_eflist; |
95 | extern int timer_eflist; | |
96 | ||
97 | static $DESCRIPTOR (input_dsc, "TT"); | |
98 | static int terminator_mask[2] = { 0, 0 }; | |
99 | ||
100 | static struct sensemode { | |
101 | short status; | |
102 | unsigned char xmit_baud; | |
103 | unsigned char rcv_baud; | |
104 | unsigned char crfill; | |
105 | unsigned char lffill; | |
106 | unsigned char parity; | |
107 | unsigned char unused; | |
108 | char class; | |
109 | char type; | |
110 | short scr_wid; | |
111 | unsigned long tt_char : 24, scr_len : 8; | |
112 | unsigned long tt2_char; | |
113 | } sensemode_iosb; | |
114 | #endif /* VMS */ | |
d0d6b7c5 JB |
115 | #endif /* not HAVE_TERMIOS */ |
116 | #endif /* not HAVE_TERMIO */ | |
117 | ||
c9b67b7b | 118 | #ifdef __GNU_LIBRARY__ |
c3ff76c4 | 119 | #include <sys/ioctl.h> |
c9b67b7b RM |
120 | #include <termios.h> |
121 | #endif | |
122 | ||
8e0ecd77 | 123 | #ifdef AIXHFT |
4746118a JB |
124 | /* Get files for keyboard remapping */ |
125 | #define HFNKEYS 2 | |
126 | #include <sys/hft.h> | |
127 | #include <sys/devinfo.h> | |
128 | #endif | |
129 | ||
130 | /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ | |
131 | #ifdef BSD4_1 | |
132 | #undef LLITOUT | |
133 | #define LLITOUT 0 | |
134 | #endif /* 4.1 */ | |
135 | ||
136 | #ifdef NEED_BSDTTY | |
137 | #include <sys/bsdtty.h> | |
138 | #endif | |
139 | ||
140 | #if defined (HPUX) && defined (HAVE_PTYS) | |
141 | #include <sys/ptyio.h> | |
142 | #endif | |
378ac314 | 143 | |
4746118a JB |
144 | #ifdef AIX |
145 | #include <sys/pty.h> | |
4746118a JB |
146 | #endif /* AIX */ |
147 | ||
378ac314 | 148 | #if (defined (POSIX) || defined (NEED_UNISTD_H)) && defined (HAVE_UNISTD_H) |
9825c716 | 149 | #include <unistd.h> |
5ab57b9f RS |
150 | #endif |
151 | ||
4746118a | 152 | #ifdef SYSV_PTYS |
8243aa4e | 153 | #include <sys/types.h> |
4746118a | 154 | #include <sys/tty.h> |
ffd56f97 JB |
155 | #ifdef titan |
156 | #include <sys/ttyhw.h> | |
157 | #include <sys/stream.h> | |
158 | #endif | |
372d3c2e | 159 | #ifndef NO_PTY_H |
4746118a JB |
160 | #include <sys/pty.h> |
161 | #endif | |
372d3c2e | 162 | #endif |
4746118a JB |
163 | |
164 | /* saka@pfu.fujitsu.co.JP writes: | |
165 | FASYNC defined in this file. But, FASYNC don't working. | |
166 | so no problem, because unrequest_sigio only need. */ | |
167 | #if defined (pfa) | |
168 | #include <sys/file.h> | |
169 | #endif | |
170 | ||
d0d6b7c5 JB |
171 | \f |
172 | /* Special cases - inhibiting the use of certain features. */ | |
173 | ||
174 | #ifdef APOLLO | |
175 | #undef TIOCSTART | |
176 | #endif | |
177 | ||
ffd56f97 JB |
178 | #ifdef XENIX |
179 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
180 | #endif | |
181 | ||
d0d6b7c5 JB |
182 | #ifdef BROKEN_TIOCGETC |
183 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
184 | #endif | |
185 | ||
186 | /* UNIPLUS systems may have FIONREAD. */ | |
187 | #ifdef UNIPLUS | |
188 | #include <sys.ioctl.h> | |
189 | #endif | |
190 | ||
191 | /* Allow m- file to inhibit use of FIONREAD. */ | |
192 | #ifdef BROKEN_FIONREAD | |
193 | #undef FIONREAD | |
194 | #undef ASYNC | |
195 | #endif | |
196 | ||
eb8c3be9 | 197 | /* Interrupt input is not used if there is no FIONREAD. */ |
d0d6b7c5 JB |
198 | #ifndef FIONREAD |
199 | #undef SIGIO | |
200 | #endif | |
201 | ||
50b8cf60 JB |
202 | /* On TERMIOS systems, the tcmumbleattr calls take care of these |
203 | parameters, and it's a bad idea to use them (on AIX, it makes the | |
c39d651c | 204 | tty hang for a long time). */ |
50b8cf60 JB |
205 | #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS) |
206 | #define HAVE_LTCHARS | |
207 | #endif | |
208 | ||
209 | #if defined (TIOCGETC) && !defined (HAVE_TERMIOS) | |
210 | #define HAVE_TCHARS | |
211 | #endif | |
212 | ||
d0d6b7c5 | 213 | \f |
2102829e RS |
214 | /* Try to establish the correct character to disable terminal functions |
215 | in a system-independent manner. Note that USG (at least) define | |
216 | _POSIX_VDISABLE as 0! */ | |
217 | ||
218 | #ifdef _POSIX_VDISABLE | |
219 | #define CDISABLE _POSIX_VDISABLE | |
220 | #else /* not _POSIX_VDISABLE */ | |
221 | #ifdef CDEL | |
d04e8e46 | 222 | #undef CDISABLE |
2102829e RS |
223 | #define CDISABLE CDEL |
224 | #else /* not CDEL */ | |
225 | #define CDISABLE 255 | |
226 | #endif /* not CDEL */ | |
227 | #endif /* not _POSIX_VDISABLE */ | |
228 | \f | |
d0d6b7c5 JB |
229 | /* Get the number of characters queued for output. */ |
230 | ||
231 | /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
232 | queued for output to the terminal FD in *SIZE, if FD is a tty. | |
233 | Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
234 | otherwise. */ | |
235 | #ifdef TIOCOUTQ | |
236 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) | |
237 | #endif | |
238 | ||
239 | #ifdef HAVE_TERMIO | |
240 | #ifdef TCOUTQ | |
241 | #undef EMACS_OUTQSIZE | |
242 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) | |
243 | #endif | |
244 | #endif | |
245 | ||
246 | \f | |
247 | /* Manipulate a terminal's current process group. */ | |
248 | ||
249 | /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current | |
250 | controlling process group. | |
251 | ||
252 | EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's | |
253 | current process group. Return -1 if there is an error. | |
254 | ||
255 | EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's | |
256 | current process group to *PGID. Return -1 if there is an error. */ | |
257 | ||
ffd56f97 JB |
258 | #ifdef HPUX |
259 | /* HPUX tty process group stuff doesn't work, says the anonymous voice | |
260 | from the past. */ | |
261 | #else | |
d0d6b7c5 JB |
262 | #ifdef TIOCGPGRP |
263 | #define EMACS_HAVE_TTY_PGRP | |
264 | #else | |
265 | #ifdef HAVE_TERMIOS | |
266 | #define EMACS_HAVE_TTY_PGRP | |
267 | #endif | |
268 | #endif | |
ffd56f97 | 269 | #endif |
d0d6b7c5 JB |
270 | |
271 | #ifdef EMACS_HAVE_TTY_PGRP | |
272 | ||
75bb6750 | 273 | #if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS) |
d0d6b7c5 JB |
274 | |
275 | #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) | |
161aa2f8 | 276 | #define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid))) |
d0d6b7c5 JB |
277 | |
278 | #else | |
279 | #ifdef TIOCSPGRP | |
280 | ||
281 | #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) | |
282 | #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) | |
283 | ||
284 | #endif | |
285 | #endif | |
286 | ||
287 | #else | |
288 | ||
289 | /* Just ignore this for now and hope for the best */ | |
290 | #define EMACS_GET_TTY_PGRP(fd, pgid) 0 | |
ef15f270 | 291 | #define EMACS_SET_TTY_PGRP(fd, pgif) 0 |
d0d6b7c5 JB |
292 | |
293 | #endif | |
294 | ||
281bbdfb | 295 | /* EMACS_GETPGRP (arg) returns the process group of the process. */ |
727b007c | 296 | |
281bbdfb | 297 | #ifdef __GNU_LIBRARY__ |
afcaa503 | 298 | /* GNU libc by default defines getpgrp with no args on all systems. */ |
e0b5b76c RS |
299 | #if __GLIBC__ >= 2 |
300 | /* glibc-2.1 adds the BSD compatibility getpgrp function | |
55a2e19e AS |
301 | if you use _BSD_SOURCE, which Emacs does on GNU/Linux systems. */ |
302 | #if __GLIBC_MINOR__ < 1 || ! defined (__FAVOR_BSD) | |
281bbdfb | 303 | #define GETPGRP_NO_ARG |
e0b5b76c RS |
304 | #endif |
305 | #else /* __GLIBC__ < 2 */ | |
306 | #define GETPGRP_NO_ARG | |
307 | #endif /* __GLIBC__ < 2 */ | |
281bbdfb | 308 | #else /* not __GNU_LIBRARY__ */ |
727b007c RS |
309 | #if defined (USG) && !defined (GETPGRP_NEEDS_ARG) |
310 | # if !defined (GETPGRP_NO_ARG) | |
311 | # define GETPGRP_NO_ARG | |
312 | # endif | |
313 | #endif | |
281bbdfb | 314 | #endif /* not __GNU_LIBRARY__ */ |
727b007c RS |
315 | |
316 | #if defined (GETPGRP_NO_ARG) | |
317 | # define EMACS_GETPGRP(x) getpgrp() | |
318 | #else | |
319 | # define EMACS_GETPGRP(x) getpgrp(x) | |
320 | #endif /* !GETPGRP_NO_ARG */ | |
d0d6b7c5 JB |
321 | \f |
322 | /* Manipulate a TTY's input/output processing parameters. */ | |
323 | ||
324 | /* struct emacs_tty is a structure used to hold the current tty | |
325 | parameters. If the terminal has several structures describing its | |
326 | state, for example a struct tchars, a struct sgttyb, a struct | |
327 | tchars, a struct ltchars, and a struct pagechars, struct | |
328 | emacs_tty should contain an element for each parameter struct | |
329 | that Emacs may change. | |
330 | ||
1334b321 JB |
331 | EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters |
332 | of the tty on FD in *P. Return zero if all's well, or -1 if we ran | |
333 | into an error we couldn't deal with. | |
d0d6b7c5 | 334 | |
1bf61ff9 | 335 | EMACS_SET_TTY (int FD, struct emacs_tty *P, int flushp) |
d0d6b7c5 | 336 | sets the parameters of the tty on FD according to the contents of |
1bf61ff9 RS |
337 | *P. If flushp is non-zero, we discard queued input to be |
338 | written before making the change. | |
1334b321 | 339 | Return 0 if all went well, and -1 if anything failed. |
d0d6b7c5 JB |
340 | |
341 | EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel | |
342 | expands tabs to spaces upon output; in that case, there is no | |
343 | advantage to using tabs over spaces. */ | |
344 | ||
345 | ||
d0d6b7c5 | 346 | /* For each tty parameter structure that Emacs might want to save and restore, |
1334b321 JB |
347 | - include an element for it in this structure, and |
348 | - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the | |
349 | new members. */ | |
d0d6b7c5 JB |
350 | |
351 | struct emacs_tty { | |
352 | ||
353 | /* There is always one of the following elements, so there is no need | |
354 | for dummy get and set definitions. */ | |
2182d459 | 355 | #ifdef HAVE_TCATTR |
d0d6b7c5 JB |
356 | struct termios main; |
357 | #else | |
358 | #ifdef HAVE_TERMIO | |
359 | struct termio main; | |
360 | #else | |
361 | #ifdef VMS | |
362 | struct sensemode main; | |
8e99c732 | 363 | #else |
101adcb5 | 364 | #ifdef DOS_NT |
8e99c732 | 365 | int main; |
101adcb5 | 366 | #else /* not DOS_NT */ |
d0d6b7c5 | 367 | struct sgttyb main; |
101adcb5 | 368 | #endif /* not DOS_NT */ |
d0d6b7c5 JB |
369 | #endif |
370 | #endif | |
8e99c732 | 371 | #endif |
50b8cf60 JB |
372 | |
373 | /* If we have TERMIOS, we don't need to do this - they're taken care of | |
374 | by the tc*attr calls. */ | |
375 | #ifndef HAVE_TERMIOS | |
376 | #ifdef HAVE_LTCHARS | |
2182d459 RS |
377 | struct ltchars ltchars; |
378 | #endif | |
50b8cf60 JB |
379 | |
380 | #ifdef HAVE_TCHARS | |
2182d459 RS |
381 | struct tchars tchars; |
382 | int lmode; | |
d0d6b7c5 | 383 | #endif |
50b8cf60 | 384 | #endif |
2182d459 RS |
385 | }; |
386 | \f | |
387 | /* Define EMACS_GET_TTY and EMACS_SET_TTY, | |
c2e4f49a | 388 | the macros for reading and setting parts of `struct emacs_tty'. |
d0d6b7c5 | 389 | |
c2e4f49a JB |
390 | These got pretty unmanageable (huge macros are hard to debug), and |
391 | finally needed some code which couldn't be done as part of an | |
392 | expression, so we moved them out to their own functions in sysdep.c. */ | |
393 | #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p))) | |
394 | #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp))) | |
4c571d09 AS |
395 | #ifdef P_ /* Unfortunately this file is sometimes included before lisp.h */ |
396 | extern int emacs_get_tty P_ ((int, struct emacs_tty *)); | |
397 | extern int emacs_set_tty P_ ((int, struct emacs_tty *, int)); | |
398 | #endif | |
d0d6b7c5 | 399 | |
2182d459 RS |
400 | \f |
401 | /* Define EMACS_TTY_TABS_OK. */ | |
d0d6b7c5 JB |
402 | |
403 | #ifdef HAVE_TERMIOS | |
404 | ||
c7040669 | 405 | #ifdef TABDLY |
d0d6b7c5 | 406 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) |
c7040669 RS |
407 | #else |
408 | #define EMACS_TTY_TABS_OK(p) 1 | |
409 | #endif | |
d0d6b7c5 JB |
410 | |
411 | #else /* not def HAVE_TERMIOS */ | |
412 | #ifdef HAVE_TERMIO | |
413 | ||
414 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
415 | ||
416 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ | |
417 | #ifdef VMS | |
418 | ||
419 | #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) | |
420 | ||
421 | #else | |
422 | ||
101adcb5 | 423 | #ifdef DOS_NT |
8e99c732 | 424 | #define EMACS_TTY_TABS_OK(p) 0 |
101adcb5 | 425 | #else /* not DOS_NT */ |
d0d6b7c5 | 426 | #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) |
101adcb5 | 427 | #endif /* not DOS_NT */ |
d0d6b7c5 JB |
428 | |
429 | #endif /* not def VMS */ | |
430 | #endif /* not def HAVE_TERMIO */ | |
431 | #endif /* not def HAVE_TERMIOS */ |