Mercurial > vim
annotate src/pty.c @ 2281:e41433ea71df vim73
Added ":earlier 1f" and ":later 1f".
author | Bram Moolenaar <bram@vim.org> |
---|---|
date | Sun, 27 Jun 2010 05:18:54 +0200 |
parents | 7c8c7c95a865 |
children | 733f0dc510c3 d5976fe4349d |
rev | line source |
---|---|
7 | 1 /* vi:set ts=8 sts=4 sw=4: |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 /* | |
10 * The stuff in this file mostly comes from the "screen" program. | |
11 * Included with permission from Juergen Weigert. | |
12 * Copied from "pty.c". "putenv.c" was used for putenv() in misc2.c. | |
13 * | |
14 * It has been modified to work better with Vim. | |
15 * The parts that are not used in Vim have been deleted. | |
16 * See the "screen" sources for the complete stuff. | |
17 */ | |
18 | |
19 /* Copyright (c) 1993 | |
20 * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) | |
21 * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) | |
22 * Copyright (c) 1987 Oliver Laumann | |
23 * | |
24 * This program is free software; you can redistribute it and/or modify | |
25 * it under the terms of the GNU General Public License as published by | |
26 * the Free Software Foundation; either version 2, or (at your option) | |
27 * any later version. | |
28 * | |
29 * This program is distributed in the hope that it will be useful, | |
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
32 * GNU General Public License for more details. | |
33 * | |
34 * You should have received a copy of the GNU General Public License | |
35 * along with this program (see the file COPYING); if not, write to the | |
36 * Free Software Foundation, Inc., | |
37 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA | |
38 */ | |
39 | |
40 #include "vim.h" | |
41 | |
42 #include <signal.h> | |
43 | |
44 #ifdef __CYGWIN32__ | |
45 # include <sys/termios.h> | |
46 #endif | |
47 | |
1030 | 48 #ifdef HAVE_SYS_IOCTL_H |
7 | 49 # include <sys/ioctl.h> |
50 #endif | |
51 | |
52 #if HAVE_STROPTS_H | |
53 #include <sys/types.h> | |
54 #ifdef sinix | |
55 #define buf_T __system_buf_t__ | |
56 #endif | |
57 #include <stropts.h> | |
58 #ifdef sinix | |
59 #undef buf_T | |
60 #endif | |
61 # ifdef sun | |
62 # include <sys/conf.h> | |
63 # endif | |
64 #endif | |
65 | |
1030 | 66 #ifdef HAVE_UNISTD_H |
7 | 67 # include <unistd.h> |
68 #endif | |
69 | |
70 #if HAVE_TERMIO_H | |
71 # include <termio.h> | |
72 #else | |
1030 | 73 # ifdef HAVE_TERMIOS_H |
7 | 74 # include <termios.h> |
75 # endif | |
76 #endif | |
77 | |
78 #if HAVE_SYS_STREAM_H | |
79 # include <sys/stream.h> | |
80 #endif | |
81 | |
82 #if HAVE_SYS_PTEM_H | |
83 # include <sys/ptem.h> | |
84 #endif | |
85 | |
86 #if !defined(sun) && !defined(VMS) && !defined(MACOS) | |
87 # include <sys/ioctl.h> | |
88 #endif | |
89 | |
90 #if defined(sun) && defined(LOCKPTY) && !defined(TIOCEXCL) | |
91 # include <sys/ttold.h> | |
92 #endif | |
93 | |
94 #ifdef ISC | |
95 # include <sys/tty.h> | |
96 # include <sys/sioctl.h> | |
97 # include <sys/pty.h> | |
98 #endif | |
99 | |
100 #ifdef sgi | |
101 # include <sys/sysmacros.h> | |
102 #endif | |
103 | |
104 #if defined(_INCLUDE_HPUX_SOURCE) && !defined(hpux) | |
105 # define hpux | |
106 #endif | |
107 | |
108 /* | |
109 * if no PTYRANGE[01] is in the config file, we pick a default | |
110 */ | |
111 #ifndef PTYRANGE0 | |
112 # define PTYRANGE0 "qprs" | |
113 #endif | |
114 #ifndef PTYRANGE1 | |
115 # define PTYRANGE1 "0123456789abcdef" | |
116 #endif | |
117 | |
118 /* SVR4 pseudo ttys don't seem to work with SCO-5 */ | |
119 #ifdef M_UNIX | |
120 # undef HAVE_SVR4_PTYS | |
121 #endif | |
122 | |
123 static void initmaster __ARGS((int)); | |
124 | |
125 /* | |
126 * Open all ptys with O_NOCTTY, just to be on the safe side | |
127 * (RISCos mips breaks otherwise) | |
128 */ | |
129 #ifndef O_NOCTTY | |
130 # define O_NOCTTY 0 | |
131 #endif | |
132 | |
133 static void | |
134 initmaster(f) | |
2154
7c8c7c95a865
First step in the Vim 7.3 branch. Changed version numbers.
Bram Moolenaar <bram@zimbu.org>
parents:
1703
diff
changeset
|
135 int f UNUSED; |
7 | 136 { |
137 #ifndef VMS | |
138 # ifdef POSIX | |
139 tcflush(f, TCIOFLUSH); | |
140 # else | |
141 # ifdef TIOCFLUSH | |
142 (void)ioctl(f, TIOCFLUSH, (char *) 0); | |
143 # endif | |
144 # endif | |
145 # ifdef LOCKPTY | |
146 (void)ioctl(f, TIOCEXCL, (char *) 0); | |
147 # endif | |
148 #endif | |
149 } | |
150 | |
151 /* | |
152 * This causes a hang on some systems, but is required for a properly working | |
153 * pty on others. Needs to be tuned... | |
154 */ | |
155 int | |
156 SetupSlavePTY(fd) | |
157 int fd; | |
158 { | |
159 if (fd < 0) | |
160 return 0; | |
161 #if defined(I_PUSH) && defined(HAVE_SVR4_PTYS) && !defined(sgi) && !defined(linux) && !defined(__osf__) && !defined(M_UNIX) | |
162 # if defined(HAVE_SYS_PTEM_H) || defined(hpux) | |
163 if (ioctl(fd, I_PUSH, "ptem") != 0) | |
164 return -1; | |
165 # endif | |
166 if (ioctl(fd, I_PUSH, "ldterm") != 0) | |
167 return -1; | |
168 # ifdef sun | |
169 if (ioctl(fd, I_PUSH, "ttcompat") != 0) | |
170 return -1; | |
171 # endif | |
172 #endif | |
173 return 0; | |
174 } | |
175 | |
176 | |
177 #if defined(OSX) && !defined(PTY_DONE) | |
178 #define PTY_DONE | |
179 int | |
180 OpenPTY(ttyn) | |
181 char **ttyn; | |
182 { | |
183 int f; | |
184 static char TtyName[32]; | |
185 | |
186 if ((f = open_controlling_pty(TtyName)) < 0) | |
187 return -1; | |
188 initmaster(f); | |
189 *ttyn = TtyName; | |
190 return f; | |
191 } | |
192 #endif | |
193 | |
194 #if (defined(sequent) || defined(_SEQUENT_)) && defined(HAVE_GETPSEUDOTTY) \ | |
195 && !defined(PTY_DONE) | |
196 #define PTY_DONE | |
197 int | |
198 OpenPTY(ttyn) | |
199 char **ttyn; | |
200 { | |
201 char *m, *s; | |
202 int f; | |
203 /* used for opening a new pty-pair: */ | |
204 static char PtyName[32]; | |
205 static char TtyName[32]; | |
206 | |
207 if ((f = getpseudotty(&s, &m)) < 0) | |
208 return -1; | |
209 #ifdef _SEQUENT_ | |
210 fvhangup(s); | |
211 #endif | |
212 strncpy(PtyName, m, sizeof(PtyName)); | |
213 strncpy(TtyName, s, sizeof(TtyName)); | |
214 initmaster(f); | |
215 *ttyn = TtyName; | |
216 return f; | |
217 } | |
218 #endif | |
219 | |
220 #if defined(__sgi) && !defined(PTY_DONE) | |
221 #define PTY_DONE | |
222 int | |
223 OpenPTY(ttyn) | |
224 char **ttyn; | |
225 { | |
226 int f; | |
227 char *name; | |
228 RETSIGTYPE (*sigcld)__ARGS(SIGPROTOARG); | |
229 | |
230 /* | |
231 * SIGCHLD set to SIG_DFL for _getpty() because it may fork() and | |
232 * exec() /usr/adm/mkpts | |
233 */ | |
234 sigcld = signal(SIGCHLD, SIG_DFL); | |
235 name = _getpty(&f, O_RDWR | O_NONBLOCK | O_EXTRA, 0600, 0); | |
236 signal(SIGCHLD, sigcld); | |
237 | |
238 if (name == 0) | |
239 return -1; | |
240 initmaster(f); | |
241 *ttyn = name; | |
242 return f; | |
243 } | |
244 #endif | |
245 | |
246 #if defined(MIPS) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
247 #define PTY_DONE | |
248 int | |
249 OpenPTY(ttyn) | |
250 char **ttyn; | |
251 { | |
252 int f; | |
253 struct stat buf; | |
254 /* used for opening a new pty-pair: */ | |
255 static char TtyName[32]; | |
256 | |
257 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_NONBLOCK | O_EXTRA, 0)) < 0) | |
258 return -1; | |
259 if (mch_fstat(f, &buf) < 0) | |
260 { | |
261 close(f); | |
262 return -1; | |
263 } | |
264 sprintf(TtyName, "/dev/ttyq%d", minor(buf.st_rdev)); | |
265 initmaster(f); | |
266 *ttyn = TtyName; | |
267 return f; | |
268 } | |
269 #endif | |
270 | |
1703 | 271 #if defined(HAVE_SVR4_PTYS) && !defined(PTY_DONE) && !defined(hpux) && !defined(MACOS_X) |
7 | 272 |
1703 | 273 /* NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! |
274 * Same for Mac OS X Leopard. */ | |
7 | 275 #define PTY_DONE |
276 int | |
277 OpenPTY(ttyn) | |
278 char **ttyn; | |
279 { | |
280 int f; | |
281 char *m, *ptsname(); | |
282 int unlockpt __ARGS((int)), grantpt __ARGS((int)); | |
283 RETSIGTYPE (*sigcld)__ARGS(SIGPROTOARG); | |
284 /* used for opening a new pty-pair: */ | |
285 static char TtyName[32]; | |
286 | |
287 if ((f = open("/dev/ptmx", O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
288 return -1; | |
289 | |
290 /* | |
291 * SIGCHLD set to SIG_DFL for grantpt() because it fork()s and | |
292 * exec()s pt_chmod | |
293 */ | |
294 sigcld = signal(SIGCHLD, SIG_DFL); | |
295 if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f)) | |
296 { | |
297 signal(SIGCHLD, sigcld); | |
298 close(f); | |
299 return -1; | |
300 } | |
301 signal(SIGCHLD, sigcld); | |
302 strncpy(TtyName, m, sizeof(TtyName)); | |
303 initmaster(f); | |
304 *ttyn = TtyName; | |
305 return f; | |
306 } | |
307 #endif | |
308 | |
309 #if defined(_AIX) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
310 #define PTY_DONE | |
311 | |
312 #ifdef _IBMR2 | |
313 int aixhack = -1; | |
314 #endif | |
315 | |
316 int | |
317 OpenPTY(ttyn) | |
318 char **ttyn; | |
319 { | |
320 int f; | |
321 /* used for opening a new pty-pair: */ | |
322 static char TtyName[32]; | |
323 | |
324 /* a dumb looking loop replaced by mycrofts code: */ | |
325 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_EXTRA)) < 0) | |
326 return -1; | |
327 strncpy(TtyName, ttyname(f), sizeof(TtyName)); | |
1076 | 328 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
7 | 329 { |
330 close(f); | |
331 return -1; | |
332 } | |
333 initmaster(f); | |
334 # ifdef _IBMR2 | |
335 if (aixhack >= 0) | |
336 close(aixhack); | |
337 if ((aixhack = open(TtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) < 0) | |
338 { | |
339 close(f); | |
340 return -1; | |
341 } | |
342 # endif | |
343 *ttyn = TtyName; | |
344 return f; | |
345 } | |
346 #endif | |
347 | |
348 #ifndef PTY_DONE | |
349 | |
350 # ifdef hpux | |
351 static char PtyProto[] = "/dev/ptym/ptyXY"; | |
352 static char TtyProto[] = "/dev/pty/ttyXY"; | |
353 # else | |
354 # ifdef __BEOS__ | |
355 static char PtyProto[] = "/dev/pt/XY"; | |
356 static char TtyProto[] = "/dev/tt/XY"; | |
357 # else | |
358 static char PtyProto[] = "/dev/ptyXY"; | |
359 static char TtyProto[] = "/dev/ttyXY"; | |
360 # endif | |
361 # endif | |
362 | |
363 int | |
364 OpenPTY(ttyn) | |
365 char **ttyn; | |
366 { | |
367 char *p, *q, *l, *d; | |
368 int f; | |
369 /* used for opening a new pty-pair: */ | |
370 static char PtyName[32]; | |
371 static char TtyName[32]; | |
372 | |
373 strcpy(PtyName, PtyProto); | |
374 strcpy(TtyName, TtyProto); | |
375 for (p = PtyName; *p != 'X'; p++) | |
376 ; | |
377 for (q = TtyName; *q != 'X'; q++) | |
378 ; | |
379 for (l = PTYRANGE0; (*p = *l) != '\0'; l++) | |
380 { | |
381 for (d = PTYRANGE1; (p[1] = *d) != '\0'; d++) | |
382 { | |
383 #if !defined(MACOS) || defined(USE_CARBONIZED) | |
384 if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
385 #else | |
386 if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA)) == -1) | |
387 #endif | |
388 continue; | |
389 q[0] = *l; | |
390 q[1] = *d; | |
391 #ifndef MACOS | |
1076 | 392 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
7 | 393 { |
394 close(f); | |
395 continue; | |
396 } | |
397 #endif | |
398 #if defined(sun) && defined(TIOCGPGRP) && !defined(SUNOS3) | |
399 /* Hack to ensure that the slave side of the pty is | |
400 * unused. May not work in anything other than SunOS4.1 | |
401 */ | |
402 { | |
403 int pgrp; | |
404 | |
405 /* tcgetpgrp does not work (uses TIOCGETPGRP)! */ | |
406 if (ioctl(f, TIOCGPGRP, (char *)&pgrp) != -1 || errno != EIO) | |
407 { | |
408 close(f); | |
409 continue; | |
410 } | |
411 } | |
412 #endif | |
413 initmaster(f); | |
414 *ttyn = TtyName; | |
415 return f; | |
416 } | |
417 } | |
418 return -1; | |
419 } | |
420 #endif |