Mercurial > vim
annotate src/pty.c @ 31920:f1a5e67e9a1b v9.0.1292
patch 9.0.1292: :defer may call the wrong method for an object
Commit: https://github.com/vim/vim/commit/313e4724c3b4f6d7454b45b89da08f83a2a0c77e
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Feb 8 20:55:27 2023 +0000
patch 9.0.1292: :defer may call the wrong method for an object
Problem: :defer may call the wrong method for an object. (Ernie Rael)
Solution: When en object is from a class that extends or implements, figure
out the method to call at runtime. (closes #11910)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 08 Feb 2023 22:00:06 +0100 |
parents | 3276298c67c5 |
children | c0b3e3c7786c |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 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. | |
3282 | 17 * |
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18 * This specific version is distributed under the Vim license (attribution by |
3282 | 19 * Juergen Weigert), the GPL applies to the original version, see the |
20 * copyright notice below. | |
7 | 21 */ |
22 | |
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23 // Copyright (c) 1993 |
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24 // Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) |
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25 // Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) |
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26 // Copyright (c) 1987 Oliver Laumann |
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27 // |
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28 // This program is free software; you can redistribute it and/or modify |
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29 // it under the terms of the GNU General Public License as published by |
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30 // the Free Software Foundation; either version 2, or (at your option) |
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31 // any later version. |
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32 // |
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33 // This program is distributed in the hope that it will be useful, |
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34 // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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35 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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36 // GNU General Public License for more details. |
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37 // |
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38 // You should have received a copy of the GNU General Public License |
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39 // along with this program (see the file COPYING); if not, write to the |
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40 // Free Software Foundation, Inc., |
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41 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
7 | 42 |
43 #include "vim.h" | |
44 | |
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45 #if defined(FEAT_GUI) || defined(FEAT_JOB_CHANNEL) |
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46 |
7 | 47 #include <signal.h> |
48 | |
1030 | 49 #ifdef HAVE_SYS_IOCTL_H |
7 | 50 # include <sys/ioctl.h> |
51 #endif | |
52 | |
53 #if HAVE_STROPTS_H | |
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54 # include <sys/types.h> |
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55 # ifdef sinix |
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56 # define buf_T __system_buf_t__ |
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57 # endif |
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58 # include <stropts.h> |
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59 # ifdef sinix |
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60 # undef buf_T |
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61 # endif |
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62 # ifdef SUN_SYSTEM |
7 | 63 # include <sys/conf.h> |
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64 # if defined(HAVE_SYS_PTMS_H) && defined(HAVE_SVR4_PTYS) |
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65 # include <sys/ptms.h> |
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66 # endif |
7 | 67 # endif |
68 #endif | |
69 | |
1030 | 70 #ifdef HAVE_UNISTD_H |
7 | 71 # include <unistd.h> |
72 #endif | |
73 | |
74 #if HAVE_TERMIO_H | |
75 # include <termio.h> | |
76 #else | |
1030 | 77 # ifdef HAVE_TERMIOS_H |
7 | 78 # include <termios.h> |
79 # endif | |
80 #endif | |
81 | |
82 #if HAVE_SYS_STREAM_H | |
83 # include <sys/stream.h> | |
84 #endif | |
85 | |
86 #if HAVE_SYS_PTEM_H | |
87 # include <sys/ptem.h> | |
88 #endif | |
89 | |
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90 #if !defined(SUN_SYSTEM) && !defined(VMS) |
7 | 91 # include <sys/ioctl.h> |
92 #endif | |
93 | |
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94 #if defined(SUN_SYSTEM) && defined(LOCKPTY) && !defined(TIOCEXCL) |
7 | 95 # include <sys/ttold.h> |
96 #endif | |
97 | |
98 #ifdef ISC | |
99 # include <sys/tty.h> | |
100 # include <sys/sioctl.h> | |
101 # include <sys/pty.h> | |
102 #endif | |
103 | |
104 #ifdef sgi | |
105 # include <sys/sysmacros.h> | |
106 #endif | |
107 | |
108 #if defined(_INCLUDE_HPUX_SOURCE) && !defined(hpux) | |
109 # define hpux | |
110 #endif | |
111 | |
112 /* | |
113 * if no PTYRANGE[01] is in the config file, we pick a default | |
114 */ | |
115 #ifndef PTYRANGE0 | |
116 # define PTYRANGE0 "qprs" | |
117 #endif | |
118 #ifndef PTYRANGE1 | |
119 # define PTYRANGE1 "0123456789abcdef" | |
120 #endif | |
121 | |
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122 // SVR4 pseudo ttys don't seem to work with SCO-5 |
7 | 123 #ifdef M_UNIX |
124 # undef HAVE_SVR4_PTYS | |
125 #endif | |
126 | |
127 /* | |
2834 | 128 * Open all ptys with O_NOCTTY, just to be on the safe side. |
7 | 129 */ |
130 #ifndef O_NOCTTY | |
131 # define O_NOCTTY 0 | |
132 #endif | |
133 | |
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134 #if defined(HAVE_SVR4_PTYS) || defined(HAVE_POSIX_OPENPT) |
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135 // These should be in stdlib.h, but it depends on _XOPEN_SOURCE. |
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136 char *ptsname(int); |
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137 int unlockpt(int); |
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138 int grantpt(int); |
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139 int posix_openpt(int flags); |
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140 #endif |
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141 |
7 | 142 static void |
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143 initmaster(int f UNUSED) |
7 | 144 { |
145 #ifndef VMS | |
146 # ifdef POSIX | |
147 tcflush(f, TCIOFLUSH); | |
148 # else | |
149 # ifdef TIOCFLUSH | |
150 (void)ioctl(f, TIOCFLUSH, (char *) 0); | |
151 # endif | |
152 # endif | |
153 # ifdef LOCKPTY | |
154 (void)ioctl(f, TIOCEXCL, (char *) 0); | |
155 # endif | |
156 #endif | |
157 } | |
158 | |
159 /* | |
160 * This causes a hang on some systems, but is required for a properly working | |
161 * pty on others. Needs to be tuned... | |
162 */ | |
163 int | |
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164 setup_slavepty(int fd) |
7 | 165 { |
166 if (fd < 0) | |
167 return 0; | |
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168 #if defined(I_PUSH) && defined(HAVE_SVR4_PTYS) && !defined(sgi) \ |
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169 && !defined(linux) && !defined(__osf__) && !defined(M_UNIX) |
7 | 170 # if defined(HAVE_SYS_PTEM_H) || defined(hpux) |
171 if (ioctl(fd, I_PUSH, "ptem") != 0) | |
172 return -1; | |
173 # endif | |
174 if (ioctl(fd, I_PUSH, "ldterm") != 0) | |
175 return -1; | |
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176 # ifdef SUN_SYSTEM |
7 | 177 if (ioctl(fd, I_PUSH, "ttcompat") != 0) |
178 return -1; | |
179 # endif | |
180 #endif | |
181 return 0; | |
182 } | |
183 | |
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184 #if defined(HAVE_POSIX_OPENPT) && !defined(PTY_DONE) |
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185 #define PTY_DONE |
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186 int |
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187 mch_openpty(char **ttyn) |
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188 { |
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189 int f; |
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190 char *m; |
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191 void (*sigcld) SIGPROTOARG; |
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192 static char TtyName[32]; // used for opening a new pty-pair |
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193 |
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194 if ((f = posix_openpt(O_RDWR | O_NOCTTY | O_EXTRA)) == -1) |
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195 return -1; |
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196 |
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197 // SIGCHLD set to SIG_DFL for grantpt() because it fork()s and |
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198 // exec()s pt_chmod |
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199 sigcld = signal(SIGCHLD, SIG_DFL); |
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200 if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f)) |
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201 { |
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202 signal(SIGCHLD, sigcld); |
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203 close(f); |
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204 return -1; |
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205 } |
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206 signal(SIGCHLD, sigcld); |
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207 vim_strncpy((char_u *)TtyName, (char_u *)m, sizeof(TtyName) - 1); |
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208 initmaster(f); |
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209 *ttyn = TtyName; |
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210 return f; |
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211 } |
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212 #endif |
7 | 213 |
214 #if defined(OSX) && !defined(PTY_DONE) | |
215 #define PTY_DONE | |
216 int | |
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217 mch_openpty(char **ttyn) |
7 | 218 { |
219 int f; | |
220 static char TtyName[32]; | |
221 | |
222 if ((f = open_controlling_pty(TtyName)) < 0) | |
223 return -1; | |
224 initmaster(f); | |
225 *ttyn = TtyName; | |
226 return f; | |
227 } | |
228 #endif | |
229 | |
230 #if (defined(sequent) || defined(_SEQUENT_)) && defined(HAVE_GETPSEUDOTTY) \ | |
231 && !defined(PTY_DONE) | |
232 #define PTY_DONE | |
233 int | |
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234 mch_openpty(char **ttyn) |
7 | 235 { |
236 char *m, *s; | |
237 int f; | |
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238 // used for opening a new pty-pair: |
7 | 239 static char PtyName[32]; |
240 static char TtyName[32]; | |
241 | |
242 if ((f = getpseudotty(&s, &m)) < 0) | |
243 return -1; | |
244 #ifdef _SEQUENT_ | |
245 fvhangup(s); | |
246 #endif | |
2760 | 247 vim_strncpy((char_u *)PtyName, (char_u *)m, sizeof(PtyName) - 1); |
248 vim_strncpy((char_u *)TtyName, (char_u *)s, sizeof(TtyName) - 1); | |
7 | 249 initmaster(f); |
250 *ttyn = TtyName; | |
251 return f; | |
252 } | |
253 #endif | |
254 | |
255 #if defined(MIPS) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
256 #define PTY_DONE | |
257 int | |
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258 mch_openpty(char **ttyn) |
7 | 259 { |
260 int f; | |
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261 stat_T buf; |
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262 // used for opening a new pty-pair: |
7 | 263 static char TtyName[32]; |
264 | |
265 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_NONBLOCK | O_EXTRA, 0)) < 0) | |
266 return -1; | |
267 if (mch_fstat(f, &buf) < 0) | |
268 { | |
269 close(f); | |
270 return -1; | |
271 } | |
272 sprintf(TtyName, "/dev/ttyq%d", minor(buf.st_rdev)); | |
273 initmaster(f); | |
274 *ttyn = TtyName; | |
275 return f; | |
276 } | |
277 #endif | |
278 | |
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279 #if defined(HAVE_SVR4_PTYS) && !defined(PTY_DONE) && !defined(hpux) \ |
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280 && !(defined(MACOS_X) && !defined(MAC_OS_X_VERSION_10_6)) |
7 | 281 |
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282 // NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! |
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283 // Same for Mac OS X Leopard (10.5). |
7 | 284 #define PTY_DONE |
285 int | |
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286 mch_openpty(char **ttyn) |
7 | 287 { |
288 int f; | |
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289 char *m; |
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290 void (*sigcld) SIGPROTOARG; |
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291 // used for opening a new pty-pair: |
7 | 292 static char TtyName[32]; |
293 | |
294 if ((f = open("/dev/ptmx", O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
295 return -1; | |
296 | |
297 /* | |
298 * SIGCHLD set to SIG_DFL for grantpt() because it fork()s and | |
299 * exec()s pt_chmod | |
300 */ | |
301 sigcld = signal(SIGCHLD, SIG_DFL); | |
302 if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f)) | |
303 { | |
304 signal(SIGCHLD, sigcld); | |
305 close(f); | |
306 return -1; | |
307 } | |
308 signal(SIGCHLD, sigcld); | |
2760 | 309 vim_strncpy((char_u *)TtyName, (char_u *)m, sizeof(TtyName) - 1); |
7 | 310 initmaster(f); |
311 *ttyn = TtyName; | |
312 return f; | |
313 } | |
314 #endif | |
315 | |
316 #if defined(_AIX) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
317 #define PTY_DONE | |
318 | |
319 #ifdef _IBMR2 | |
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320 static int aixhack = -1; |
7 | 321 #endif |
322 | |
323 int | |
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324 mch_openpty(char **ttyn) |
7 | 325 { |
326 int f; | |
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327 // used for opening a new pty-pair: |
7 | 328 static char TtyName[32]; |
329 | |
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330 // a dumb looking loop replaced by mycrofts code: |
7 | 331 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_EXTRA)) < 0) |
332 return -1; | |
2760 | 333 vim_strncpy((char_u *)TtyName, (char_u *)ttyname(f), sizeof(TtyName) - 1); |
1076 | 334 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
7 | 335 { |
336 close(f); | |
337 return -1; | |
338 } | |
339 initmaster(f); | |
340 # ifdef _IBMR2 | |
341 if (aixhack >= 0) | |
342 close(aixhack); | |
343 if ((aixhack = open(TtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) < 0) | |
344 { | |
345 close(f); | |
346 return -1; | |
347 } | |
348 # endif | |
349 *ttyn = TtyName; | |
350 return f; | |
351 } | |
352 #endif | |
353 | |
354 #ifndef PTY_DONE | |
355 | |
356 # ifdef hpux | |
357 static char PtyProto[] = "/dev/ptym/ptyXY"; | |
358 static char TtyProto[] = "/dev/pty/ttyXY"; | |
359 # else | |
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360 # ifdef(__HAIKU__) |
7 | 361 static char PtyProto[] = "/dev/pt/XY"; |
362 static char TtyProto[] = "/dev/tt/XY"; | |
363 # else | |
364 static char PtyProto[] = "/dev/ptyXY"; | |
365 static char TtyProto[] = "/dev/ttyXY"; | |
366 # endif | |
367 # endif | |
368 | |
369 int | |
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370 mch_openpty(char **ttyn) |
7 | 371 { |
372 char *p, *q, *l, *d; | |
373 int f; | |
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374 // used for opening a new pty-pair: |
7 | 375 static char PtyName[32]; |
376 static char TtyName[32]; | |
377 | |
378 strcpy(PtyName, PtyProto); | |
379 strcpy(TtyName, TtyProto); | |
380 for (p = PtyName; *p != 'X'; p++) | |
381 ; | |
382 for (q = TtyName; *q != 'X'; q++) | |
383 ; | |
384 for (l = PTYRANGE0; (*p = *l) != '\0'; l++) | |
385 { | |
386 for (d = PTYRANGE1; (p[1] = *d) != '\0'; d++) | |
387 { | |
388 if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
389 continue; | |
390 q[0] = *l; | |
391 q[1] = *d; | |
1076 | 392 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
7 | 393 { |
394 close(f); | |
395 continue; | |
396 } | |
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397 #if defined(SUN_SYSTEM) && defined(TIOCGPGRP) && !defined(SUNOS3) |
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398 // Hack to ensure that the slave side of the pty is |
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399 // unused. May not work in anything other than SunOS4.1 |
7 | 400 { |
401 int pgrp; | |
402 | |
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403 // tcgetpgrp does not work (uses TIOCGETPGRP)! |
7 | 404 if (ioctl(f, TIOCGPGRP, (char *)&pgrp) != -1 || errno != EIO) |
405 { | |
406 close(f); | |
407 continue; | |
408 } | |
409 } | |
410 #endif | |
411 initmaster(f); | |
412 *ttyn = TtyName; | |
413 return f; | |
414 } | |
415 } | |
416 return -1; | |
417 } | |
418 #endif | |
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419 |
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420 /* |
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421 * Call isatty(fd), except for SunOS where it's done differently. |
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422 */ |
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423 int |
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424 mch_isatty(int fd) |
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425 { |
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426 # if defined(I_STR) && defined(HAVE_SYS_PTMS_H) && defined(HAVE_SVR4_PTYS) \ |
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427 && defined(SUN_SYSTEM) |
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428 // On SunOS, isatty() for /dev/ptmx returns false or sometimes can hang up |
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429 // in the inner ioctl(), and therefore first determine whether "fd" is a |
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430 // master device. |
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431 struct strioctl istr; |
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432 |
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433 istr.ic_cmd = ISPTM; |
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434 istr.ic_timout = 0; |
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435 istr.ic_dp = NULL; |
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436 istr.ic_len = 0; |
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437 |
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438 if (ioctl(fd, I_STR, &istr) == 0) |
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439 // Trick: return 2 in order to advice the caller that "fd" is a master |
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440 // device. cf. src/os_unix.c:get_tty_fd() |
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441 return 2; |
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442 # endif |
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443 return isatty(fd); |
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444 } |
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445 |
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446 #endif // FEAT_GUI || FEAT_JOB_CHANNEL |