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