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a04c9535 | 1 | /* systty.h - System-dependent definitions for terminals. |
429ab54e | 2 | Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, |
8cabe764 | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
d0d6b7c5 JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
b9b1cc14 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
d0d6b7c5 | 8 | it under the terms of the GNU General Public License as published by |
b9b1cc14 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
d0d6b7c5 JB |
11 | |
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
b9b1cc14 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
d0d6b7c5 | 19 | |
2182d459 RS |
20 | #ifdef HAVE_TERMIOS |
21 | #define HAVE_TCATTR | |
22 | #endif | |
7f6d476f | 23 | |
d0d6b7c5 JB |
24 | \f |
25 | /* Include the proper files. */ | |
26 | #ifdef HAVE_TERMIO | |
d2d846a3 | 27 | #ifndef NO_TERMIO |
d0d6b7c5 | 28 | #include <termio.h> |
d2d846a3 | 29 | #endif /* not NO_TERMIO */ |
92ea836d | 30 | #ifndef INCLUDED_FCNTL |
b65e3dd7 | 31 | #define INCLUDED_FCNTL |
d0d6b7c5 | 32 | #include <fcntl.h> |
92ea836d RS |
33 | #endif |
34 | #else /* not HAVE_TERMIO */ | |
d0d6b7c5 | 35 | #ifdef HAVE_TERMIOS |
3580badc RS |
36 | #if defined(_AIX) && defined(_I386) |
37 | #include <termios.h> /* termios.h needs to be before termio.h */ | |
38 | #include <termio.h> | |
ab9ba9ea | 39 | #else /* not (_AIX && _I386) */ |
c62e9958 | 40 | #ifndef NO_TERMIO |
d0d6b7c5 | 41 | #include <termio.h> |
c62e9958 | 42 | #endif |
d0d6b7c5 | 43 | #include <termios.h> |
ab9ba9ea | 44 | #endif /* not (_AIX && _I386) */ |
b65e3dd7 | 45 | #define INCLUDED_FCNTL |
1aaaff21 | 46 | #include <fcntl.h> |
d0d6b7c5 JB |
47 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ |
48 | #ifndef VMS | |
101adcb5 | 49 | #ifndef DOS_NT |
d0d6b7c5 | 50 | #include <sgtty.h> |
101adcb5 | 51 | #endif /* not DOS_NT */ |
a04c9535 JB |
52 | #else /* VMS */ |
53 | #include <descrip.h> | |
54 | static struct iosb | |
55 | { | |
56 | short status; | |
57 | short offset; | |
58 | short termlen; | |
59 | short term; | |
60 | } input_iosb; | |
61 | ||
62 | extern int waiting_for_ast; | |
63 | extern int stop_input; | |
210b2b4f JB |
64 | extern int input_ef; |
65 | extern int timer_ef; | |
66 | extern int process_ef; | |
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 | ||
c9b67b7b | 91 | #ifdef __GNU_LIBRARY__ |
c3ff76c4 | 92 | #include <sys/ioctl.h> |
c9b67b7b RM |
93 | #include <termios.h> |
94 | #endif | |
95 | ||
8e0ecd77 | 96 | #ifdef AIXHFT |
4746118a JB |
97 | /* Get files for keyboard remapping */ |
98 | #define HFNKEYS 2 | |
99 | #include <sys/hft.h> | |
100 | #include <sys/devinfo.h> | |
101 | #endif | |
102 | ||
103 | /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ | |
104 | #ifdef BSD4_1 | |
105 | #undef LLITOUT | |
106 | #define LLITOUT 0 | |
107 | #endif /* 4.1 */ | |
108 | ||
109 | #ifdef NEED_BSDTTY | |
110 | #include <sys/bsdtty.h> | |
177c0ea7 | 111 | #endif |
4746118a JB |
112 | |
113 | #if defined (HPUX) && defined (HAVE_PTYS) | |
114 | #include <sys/ptyio.h> | |
115 | #endif | |
378ac314 | 116 | |
4746118a JB |
117 | #ifdef AIX |
118 | #include <sys/pty.h> | |
4746118a JB |
119 | #endif /* AIX */ |
120 | ||
378ac314 | 121 | #if (defined (POSIX) || defined (NEED_UNISTD_H)) && defined (HAVE_UNISTD_H) |
9825c716 | 122 | #include <unistd.h> |
5ab57b9f RS |
123 | #endif |
124 | ||
4746118a | 125 | #ifdef SYSV_PTYS |
8243aa4e | 126 | #include <sys/types.h> |
4746118a JB |
127 | #include <sys/tty.h> |
128 | #include <sys/pty.h> | |
129 | #endif | |
130 | ||
d0d6b7c5 JB |
131 | \f |
132 | /* Special cases - inhibiting the use of certain features. */ | |
133 | ||
d0d6b7c5 JB |
134 | #ifdef BROKEN_TIOCGETC |
135 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
136 | #endif | |
137 | ||
d0d6b7c5 JB |
138 | /* Allow m- file to inhibit use of FIONREAD. */ |
139 | #ifdef BROKEN_FIONREAD | |
140 | #undef FIONREAD | |
141 | #undef ASYNC | |
142 | #endif | |
143 | ||
eb8c3be9 | 144 | /* Interrupt input is not used if there is no FIONREAD. */ |
d0d6b7c5 JB |
145 | #ifndef FIONREAD |
146 | #undef SIGIO | |
147 | #endif | |
148 | ||
50b8cf60 JB |
149 | /* On TERMIOS systems, the tcmumbleattr calls take care of these |
150 | parameters, and it's a bad idea to use them (on AIX, it makes the | |
c39d651c | 151 | tty hang for a long time). */ |
50b8cf60 JB |
152 | #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS) |
153 | #define HAVE_LTCHARS | |
154 | #endif | |
155 | ||
156 | #if defined (TIOCGETC) && !defined (HAVE_TERMIOS) | |
157 | #define HAVE_TCHARS | |
158 | #endif | |
159 | ||
d0d6b7c5 | 160 | \f |
2102829e RS |
161 | /* Try to establish the correct character to disable terminal functions |
162 | in a system-independent manner. Note that USG (at least) define | |
163 | _POSIX_VDISABLE as 0! */ | |
164 | ||
165 | #ifdef _POSIX_VDISABLE | |
166 | #define CDISABLE _POSIX_VDISABLE | |
167 | #else /* not _POSIX_VDISABLE */ | |
168 | #ifdef CDEL | |
d04e8e46 | 169 | #undef CDISABLE |
2102829e RS |
170 | #define CDISABLE CDEL |
171 | #else /* not CDEL */ | |
172 | #define CDISABLE 255 | |
173 | #endif /* not CDEL */ | |
174 | #endif /* not _POSIX_VDISABLE */ | |
175 | \f | |
d0d6b7c5 JB |
176 | /* Get the number of characters queued for output. */ |
177 | ||
178 | /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
179 | queued for output to the terminal FD in *SIZE, if FD is a tty. | |
180 | Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
181 | otherwise. */ | |
182 | #ifdef TIOCOUTQ | |
183 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) | |
184 | #endif | |
185 | ||
186 | #ifdef HAVE_TERMIO | |
187 | #ifdef TCOUTQ | |
188 | #undef EMACS_OUTQSIZE | |
189 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) | |
190 | #endif | |
191 | #endif | |
192 | ||
193 | \f | |
194 | /* Manipulate a terminal's current process group. */ | |
195 | ||
196 | /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current | |
197 | controlling process group. | |
198 | ||
199 | EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's | |
200 | current process group. Return -1 if there is an error. | |
201 | ||
202 | EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's | |
203 | current process group to *PGID. Return -1 if there is an error. */ | |
204 | ||
ffd56f97 JB |
205 | #ifdef HPUX |
206 | /* HPUX tty process group stuff doesn't work, says the anonymous voice | |
207 | from the past. */ | |
208 | #else | |
d0d6b7c5 JB |
209 | #ifdef TIOCGPGRP |
210 | #define EMACS_HAVE_TTY_PGRP | |
211 | #else | |
212 | #ifdef HAVE_TERMIOS | |
213 | #define EMACS_HAVE_TTY_PGRP | |
214 | #endif | |
215 | #endif | |
ffd56f97 | 216 | #endif |
d0d6b7c5 JB |
217 | |
218 | #ifdef EMACS_HAVE_TTY_PGRP | |
219 | ||
75bb6750 | 220 | #if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS) |
d0d6b7c5 JB |
221 | |
222 | #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) | |
161aa2f8 | 223 | #define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid))) |
d0d6b7c5 JB |
224 | |
225 | #else | |
226 | #ifdef TIOCSPGRP | |
227 | ||
228 | #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) | |
229 | #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) | |
230 | ||
231 | #endif | |
232 | #endif | |
233 | ||
234 | #else | |
235 | ||
236 | /* Just ignore this for now and hope for the best */ | |
237 | #define EMACS_GET_TTY_PGRP(fd, pgid) 0 | |
ef15f270 | 238 | #define EMACS_SET_TTY_PGRP(fd, pgif) 0 |
d0d6b7c5 JB |
239 | |
240 | #endif | |
241 | ||
281bbdfb | 242 | /* EMACS_GETPGRP (arg) returns the process group of the process. */ |
727b007c | 243 | |
f7ff70e8 | 244 | #if defined (GETPGRP_VOID) |
727b007c RS |
245 | # define EMACS_GETPGRP(x) getpgrp() |
246 | #else | |
247 | # define EMACS_GETPGRP(x) getpgrp(x) | |
f7ff70e8 | 248 | #endif /* !GETPGRP_VOID */ |
d0d6b7c5 JB |
249 | \f |
250 | /* Manipulate a TTY's input/output processing parameters. */ | |
251 | ||
252 | /* struct emacs_tty is a structure used to hold the current tty | |
253 | parameters. If the terminal has several structures describing its | |
254 | state, for example a struct tchars, a struct sgttyb, a struct | |
255 | tchars, a struct ltchars, and a struct pagechars, struct | |
256 | emacs_tty should contain an element for each parameter struct | |
257 | that Emacs may change. | |
258 | ||
1334b321 JB |
259 | EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters |
260 | of the tty on FD in *P. Return zero if all's well, or -1 if we ran | |
261 | into an error we couldn't deal with. | |
d0d6b7c5 | 262 | |
1bf61ff9 | 263 | EMACS_SET_TTY (int FD, struct emacs_tty *P, int flushp) |
d0d6b7c5 | 264 | sets the parameters of the tty on FD according to the contents of |
1bf61ff9 RS |
265 | *P. If flushp is non-zero, we discard queued input to be |
266 | written before making the change. | |
1334b321 | 267 | Return 0 if all went well, and -1 if anything failed. |
d0d6b7c5 | 268 | |
e0f24100 | 269 | EMACS_TTY_TABS_OK (struct emacs_tty *P) is false if the kernel |
d0d6b7c5 JB |
270 | expands tabs to spaces upon output; in that case, there is no |
271 | advantage to using tabs over spaces. */ | |
272 | ||
273 | ||
d0d6b7c5 | 274 | /* For each tty parameter structure that Emacs might want to save and restore, |
1334b321 JB |
275 | - include an element for it in this structure, and |
276 | - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the | |
277 | new members. */ | |
d0d6b7c5 JB |
278 | |
279 | struct emacs_tty { | |
280 | ||
281 | /* There is always one of the following elements, so there is no need | |
282 | for dummy get and set definitions. */ | |
2182d459 | 283 | #ifdef HAVE_TCATTR |
d0d6b7c5 JB |
284 | struct termios main; |
285 | #else | |
286 | #ifdef HAVE_TERMIO | |
287 | struct termio main; | |
288 | #else | |
289 | #ifdef VMS | |
290 | struct sensemode main; | |
8e99c732 | 291 | #else |
101adcb5 | 292 | #ifdef DOS_NT |
8e99c732 | 293 | int main; |
101adcb5 | 294 | #else /* not DOS_NT */ |
d0d6b7c5 | 295 | struct sgttyb main; |
101adcb5 | 296 | #endif /* not DOS_NT */ |
d0d6b7c5 JB |
297 | #endif |
298 | #endif | |
8e99c732 | 299 | #endif |
50b8cf60 JB |
300 | |
301 | /* If we have TERMIOS, we don't need to do this - they're taken care of | |
302 | by the tc*attr calls. */ | |
303 | #ifndef HAVE_TERMIOS | |
304 | #ifdef HAVE_LTCHARS | |
2182d459 RS |
305 | struct ltchars ltchars; |
306 | #endif | |
50b8cf60 JB |
307 | |
308 | #ifdef HAVE_TCHARS | |
2182d459 RS |
309 | struct tchars tchars; |
310 | int lmode; | |
d0d6b7c5 | 311 | #endif |
50b8cf60 | 312 | #endif |
2182d459 RS |
313 | }; |
314 | \f | |
315 | /* Define EMACS_GET_TTY and EMACS_SET_TTY, | |
c2e4f49a | 316 | the macros for reading and setting parts of `struct emacs_tty'. |
d0d6b7c5 | 317 | |
c2e4f49a JB |
318 | These got pretty unmanageable (huge macros are hard to debug), and |
319 | finally needed some code which couldn't be done as part of an | |
320 | expression, so we moved them out to their own functions in sysdep.c. */ | |
321 | #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p))) | |
322 | #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp))) | |
4c571d09 AS |
323 | #ifdef P_ /* Unfortunately this file is sometimes included before lisp.h */ |
324 | extern int emacs_get_tty P_ ((int, struct emacs_tty *)); | |
325 | extern int emacs_set_tty P_ ((int, struct emacs_tty *, int)); | |
326 | #endif | |
d0d6b7c5 | 327 | |
2182d459 RS |
328 | \f |
329 | /* Define EMACS_TTY_TABS_OK. */ | |
d0d6b7c5 JB |
330 | |
331 | #ifdef HAVE_TERMIOS | |
332 | ||
c7040669 | 333 | #ifdef TABDLY |
d0d6b7c5 | 334 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) |
c7040669 RS |
335 | #else |
336 | #define EMACS_TTY_TABS_OK(p) 1 | |
337 | #endif | |
d0d6b7c5 JB |
338 | |
339 | #else /* not def HAVE_TERMIOS */ | |
340 | #ifdef HAVE_TERMIO | |
341 | ||
342 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
343 | ||
344 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ | |
345 | #ifdef VMS | |
346 | ||
347 | #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) | |
348 | ||
349 | #else | |
350 | ||
101adcb5 | 351 | #ifdef DOS_NT |
8e99c732 | 352 | #define EMACS_TTY_TABS_OK(p) 0 |
101adcb5 | 353 | #else /* not DOS_NT */ |
d0d6b7c5 | 354 | #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) |
101adcb5 | 355 | #endif /* not DOS_NT */ |
d0d6b7c5 JB |
356 | |
357 | #endif /* not def VMS */ | |
358 | #endif /* not def HAVE_TERMIO */ | |
359 | #endif /* not def HAVE_TERMIOS */ | |
ab5796a9 MB |
360 | |
361 | /* arch-tag: cf4b90bc-be41-401c-be98-40619178a712 | |
362 | (do not change this comment) */ |