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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.5 by pcg, Sat Jan 31 03:27:45 2004 UTC vs.
Revision 1.26 by root, Mon Jan 2 15:10:18 2006 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*--------------------------------*-C-*---------------------------------*
2 * File: ptytty.c 2 * File: ptytty.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> 6 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
7 * Copyright (c) 2004 Marc Lehmann <pcg@goof.com>
7 * 8 *
8 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 11 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 12 * (at your option) any later version.
… …
19 * along with this program; if not, write to the Free Software 20 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *---------------------------------------------------------------------*/ 22 *---------------------------------------------------------------------*/
22 23
23#include "../config.h" /* NECESSARY */ 24#include "../config.h" /* NECESSARY */
25#include "rxvt.h"
24 26
25/*
26 * Try to be self-contained except for the above autoconfig'd defines
27 */
28
29#include <stdio.h>
30#ifdef HAVE_STDLIB_H 27#ifdef HAVE_STDLIB_H
31# include <stdlib.h> 28# include <cstdlib>
32#endif 29#endif
33#ifdef HAVE_SYS_TYPES_H 30#ifdef HAVE_SYS_TYPES_H
34# include <sys/types.h> 31# include <sys/types.h>
35#endif 32#endif
36#ifdef HAVE_UNISTD_H 33#ifdef HAVE_UNISTD_H
37# include <unistd.h> 34# include <unistd.h>
38#endif 35#endif
39#if defined(HAVE_STRING_H) 36#if defined(HAVE_STRING_H)
40# include <string.h> 37# include <cstring>
41#endif 38#endif
42#ifdef HAVE_FCNTL_H 39#ifdef HAVE_FCNTL_H
43# include <fcntl.h> 40# include <fcntl.h>
44#endif 41#endif
45#ifdef HAVE_SYS_IOCTL_H 42#ifdef HAVE_SYS_IOCTL_H
46# include <sys/ioctl.h> 43# include <sys/ioctl.h>
47#endif 44#endif
48#if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) 45#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H)
49# include <sys/stropts.h> /* for I_PUSH */ 46# include <sys/stropts.h> /* for I_PUSH */
50#endif 47#endif
51 48#ifdef HAVE_ISASTREAM
52#ifdef DEBUG_TTY 49# include <stropts.h>
53# define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr)
54#else
55# define D_TTY(x)
56#endif 50#endif
51#ifdef HAVE_PTY_H
52# include <pty.h>
53#endif
54
55// better do this via configure, but....
56#if defined(__FreeBSD__)
57# include <libutil.h>
58#elif defined(__DARWIN__) || (defined (__MACH__) && defined (__APPLE__))
59# include <util.h>
60#endif
61
62#include <cstdio>
63#include <grp.h>
57 64
58/* ------------------------------------------------------------------------- * 65/* ------------------------------------------------------------------------- *
59 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 66 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
60 * ------------------------------------------------------------------------- */ 67 * ------------------------------------------------------------------------- */
61/* 68/*
62 * Returns pty file descriptor, or -1 on failure 69 * Returns pty file descriptor, or -1 on failure
63 * If successful, ttydev is set to the name of the slave device. 70 * If successful, ttydev is set to the name of the slave device.
64 * fd_tty _may_ also be set to an open fd to the slave device 71 * fd_tty _may_ also be set to an open fd to the slave device
65 */ 72 */
66/* EXTPROTO */ 73static int
67int
68rxvt_get_pty(int *fd_tty, const char **ttydev) 74get_pty (int *fd_tty, char **ttydev)
69{ 75{
70 int pfd; 76 int pfd;
71 77
72#ifdef PTYS_ARE_OPENPTY 78#ifdef PTYS_ARE_OPENPTY
73
74 char tty_name[sizeof "/dev/pts/????\0"]; 79 char tty_name[sizeof "/dev/pts/????\0"];
75 80
76 if (openpty(&pfd, fd_tty, tty_name, NULL, NULL) != -1) 81 if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1)
77 { 82 {
78 *ttydev = strdup(tty_name); 83 *ttydev = strdup (tty_name);
79 return pfd; 84 return pfd;
80 } 85 }
81#endif 86#endif
82 87
83#ifdef PTYS_ARE__GETPTY 88#ifdef PTYS_ARE__GETPTY
84 *ttydev = _getpty(&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
85 if (*ttydev != NULL) 90 if (*ttydev != NULL)
86 return pfd; 91 return pfd;
87#endif 92#endif
88 93
89#ifdef PTYS_ARE_GETPTY 94#ifdef PTYS_ARE_GETPTY
90
91 char *ptydev; 95 char *ptydev;
92 96
93 while ((ptydev = getpty()) != NULL) 97 while ((ptydev = getpty ()) != NULL)
94 if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) 98 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
95 { 99 {
96 *ttydev = ptydev; 100 *ttydev = ptydev;
97 return pfd; 101 return pfd;
98 } 102 }
99#endif 103#endif
… …
101#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 105#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
102# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 106# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
103 107
104 { 108 {
105# ifdef PTYS_ARE_GETPT 109# ifdef PTYS_ARE_GETPT
106 pfd = getpt(); 110 pfd = getpt ();
107# else 111# else
108
109 pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 112 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
110# endif 113# endif
111 114
112 if (pfd >= 0) 115 if (pfd >= 0)
113 { 116 {
114 if (grantpt(pfd) == 0 /* change slave permissions */ 117 if (grantpt (pfd) == 0 /* change slave permissions */
115 && unlockpt(pfd) == 0) 118 && unlockpt (pfd) == 0)
116 { /* slave now unlocked */ 119 { /* slave now unlocked */
117 *ttydev = ptsname(pfd); /* get slave's name */ 120 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
118 return pfd; 121 return pfd;
119 } 122 }
120 close(pfd); 123 close (pfd);
121 } 124 }
122 } 125 }
123# endif 126# endif
124#endif 127#endif
125 128
126#ifdef PTYS_ARE_PTC 129#ifdef PTYS_ARE_PTC
127 if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 130 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
128 { 131 {
129 *ttydev = ttyname(pfd); 132 *ttydev = strdup (ttyname (pfd));
130 return pfd; 133 return pfd;
131 } 134 }
132#endif 135#endif
133 136
134#ifdef PTYS_ARE_CLONE 137#ifdef PTYS_ARE_CLONE
135 if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 138 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
136 { 139 {
137 *ttydev = ptsname(pfd); 140 *ttydev = strdup (ptsname (pfd));
138 return pfd; 141 return pfd;
139 } 142 }
140#endif 143#endif
141 144
142#ifdef PTYS_ARE_NUMERIC 145#ifdef PTYS_ARE_NUMERIC
143 { 146 {
144 int idx; 147 int idx;
145 char *c1, *c2; 148 char *c1, *c2;
146 char pty_name[] = "/dev/ptyp???"; 149 char pty_name[] = "/dev/ptyp???";
147 char tty_name[] = "/dev/ttyp???"; 150 char tty_name[] = "/dev/ttyp???";
148 151
149 c1 = &(pty_name[sizeof(pty_name) - 4]); 152 c1 = &(pty_name[sizeof (pty_name) - 4]);
150 c2 = &(tty_name[sizeof(tty_name) - 4]); 153 c2 = &(tty_name[sizeof (tty_name) - 4]);
151 for (idx = 0; idx < 256; idx++) 154 for (idx = 0; idx < 256; idx++)
152 { 155 {
153 sprintf(c1, "%d", idx); 156 sprintf (c1, "%d", idx);
154 sprintf(c2, "%d", idx); 157 sprintf (c2, "%d", idx);
155 if (access(tty_name, F_OK) < 0) 158 if (access (tty_name, F_OK) < 0)
156 { 159 {
157 idx = 256; 160 idx = 256;
158 break; 161 break;
159 } 162 }
163
160 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 164 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
161 { 165 {
162 if (access(tty_name, R_OK | W_OK) == 0) 166 if (access (tty_name, R_OK | W_OK) == 0)
163 { 167 {
164 *ttydev = strdup(tty_name); 168 *ttydev = strdup (tty_name);
165 return pfd; 169 return pfd;
166 } 170 }
171
167 close(pfd); 172 close (pfd);
168 } 173 }
169 } 174 }
170 } 175 }
171#endif 176#endif
177
172#ifdef PTYS_ARE_SEARCHED 178#ifdef PTYS_ARE_SEARCHED
173 { 179 {
174 const char *c1, *c2; 180 const char *c1, *c2;
175 char pty_name[] = "/dev/pty??"; 181 char pty_name[] = "/dev/pty??";
176 char tty_name[] = "/dev/tty??"; 182 char tty_name[] = "/dev/tty??";
177 183
178# ifndef PTYCHAR1 184# ifndef PTYCHAR1
179# define PTYCHAR1 "pqrstuvwxyz" 185# define PTYCHAR1 "pqrstuvwxyz"
180# endif 186# endif
181# ifndef PTYCHAR2 187# ifndef PTYCHAR2
182# define PTYCHAR2 "0123456789abcdef" 188# define PTYCHAR2 "0123456789abcdef"
183# endif 189# endif
184 190
185 for (c1 = PTYCHAR1; *c1; c1++) 191 for (c1 = PTYCHAR1; *c1; c1++)
186 { 192 {
187 pty_name[(sizeof(pty_name) - 3)] = 193 pty_name[ (sizeof (pty_name) - 3)] =
188 tty_name[(sizeof(pty_name) - 3)] = *c1; 194 tty_name[ (sizeof (pty_name) - 3)] = *c1;
189 for (c2 = PTYCHAR2; *c2; c2++) 195 for (c2 = PTYCHAR2; *c2; c2++)
190 { 196 {
191 pty_name[(sizeof(pty_name) - 2)] = 197 pty_name[ (sizeof (pty_name) - 2)] =
192 tty_name[(sizeof(pty_name) - 2)] = *c2; 198 tty_name[ (sizeof (pty_name) - 2)] = *c2;
193 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 199 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
194 { 200 {
195 if (access(tty_name, R_OK | W_OK) == 0) 201 if (access (tty_name, R_OK | W_OK) == 0)
196 { 202 {
197 *ttydev = strdup(tty_name); 203 *ttydev = strdup (tty_name);
198 return pfd; 204 return pfd;
199 } 205 }
206
200 close(pfd); 207 close (pfd);
201 } 208 }
202 } 209 }
203 } 210 }
204 } 211 }
205#endif 212#endif
213
206 return -1; 214 return -1;
207} 215}
208 216
209/*----------------------------------------------------------------------*/ 217/*----------------------------------------------------------------------*/
210/* 218/*
211 * Returns tty file descriptor, or -1 on failure 219 * Returns tty file descriptor, or -1 on failure
212 */ 220 */
213/* EXTPROTO */ 221static int
214int
215rxvt_get_tty (const char *ttydev) 222get_tty (char *ttydev)
216{ 223{
217 return open (ttydev, O_RDWR | O_NOCTTY, 0); 224 return open (ttydev, O_RDWR | O_NOCTTY, 0);
218} 225}
219 226
220/*----------------------------------------------------------------------*/ 227/*----------------------------------------------------------------------*/
221/* 228/*
222 * Make our tty a controlling tty so that /dev/tty points to us 229 * Make our tty a controlling tty so that /dev/tty points to us
223 */ 230 */
224/* EXTPROTO */ 231static int
225int
226rxvt_control_tty (int fd_tty, const char *ttydev) 232control_tty (int fd_tty, const char *ttydev)
227{ 233{
228#ifndef __QNX__ 234#ifndef __QNX__
229 int fd; 235 int fd;
230 236
231 D_TTY ((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev));
232 /* ---------------------------------------- */ 237 /* ---------------------------------------- */
233# ifdef HAVE_SETSID 238# ifdef HAVE_SETSID
234 setsid (); 239 setsid ();
235# endif 240# endif
236# if defined(HAVE_SETPGID) 241# if defined(HAVE_SETPGID)
237 setpgid (0, 0); 242 setpgid (0, 0);
238# elif defined(HAVE_SETPGRP) 243# elif defined(HAVE_SETPGRP)
239 setpgrp (0, 0); 244 setpgrp (0, 0);
240# endif 245# endif
246
241 /* ---------------------------------------- */ 247 /* ---------------------------------------- */
242# ifdef TIOCNOTTY 248# ifdef TIOCNOTTY
243
244 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
245 D_TTY ((stderr, "rxvt_control_tty(): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes"));
246 if (fd >= 0) 250 if (fd >= 0)
247 { 251 {
248 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ 252 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
249 close (fd); 253 close (fd);
250 } 254 }
251# endif 255# endif
256
252 /* ---------------------------------------- */ 257 /* ---------------------------------------- */
253 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 258 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
254 D_TTY ((stderr, "rxvt_control_tty(): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)"));
255 if (fd >= 0) 259 if (fd >= 0)
256 close (fd); /* ouch: still have controlling tty */ 260 close (fd); /* ouch: still have controlling tty */
261
257 /* ---------------------------------------- */ 262 /* ---------------------------------------- */
258#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 263#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
259 /* 264 /*
260 * Push STREAMS modules: 265 * Push STREAMS modules:
261 * ptem: pseudo-terminal hardware emulation module. 266 * ptem: pseudo-terminal hardware emulation module.
262 * ldterm: standard terminal line discipline. 267 * ldterm: standard terminal line discipline.
263 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 268 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
264 * 269 *
265 * After we push the STREAMS modules, the first open() on the slave side 270 * After we push the STREAMS modules, the first open () on the slave side
266 * (i.e. the next section between the dashes giving us "tty opened OK") 271 * (i.e. the next section between the dashes giving us "tty opened OK")
267 * should make the "ptem" (or "ldterm" depending upon either which OS 272 * should make the "ptem" (or "ldterm" depending upon either which OS
268 * version or which set of manual pages you have) module give us a 273 * version or which set of manual pages you have) module give us a
269 * controlling terminal. We must already have close()d the master side 274 * controlling terminal. We must already have close ()d the master side
270 * fd in this child process before we push STREAMS modules on because the 275 * fd in this child process before we push STREAMS modules on because the
271 * documentation is really unclear about whether it is any close() on 276 * documentation is really unclear about whether it is any close () on
272 * the master side or the last close() - i.e. a proper STREAMS dismantling 277 * the master side or the last close () - i.e. a proper STREAMS dismantling
273 * close() - on the master side which causes a hang up to be sent 278 * close () - on the master side which causes a hang up to be sent
274 * through - Geoff Wing 279 * through - Geoff Wing
275 */ 280 */
276# ifdef HAVE_ISASTREAM 281# ifdef HAVE_ISASTREAM
277 if (isastream (fd_tty) == 1) 282 if (isastream (fd_tty) == 1)
278# endif 283# endif
279 { 284 {
280 D_TTY ((stderr, "rxvt_control_tty(): Pushing STREAMS modules"));
281 ioctl (fd_tty, I_PUSH, "ptem"); 285 ioctl (fd_tty, I_PUSH, "ptem");
282 ioctl (fd_tty, I_PUSH, "ldterm"); 286 ioctl (fd_tty, I_PUSH, "ldterm");
283 ioctl (fd_tty, I_PUSH, "ttcompat"); 287 ioctl (fd_tty, I_PUSH, "ttcompat");
284 } 288 }
285#endif 289#endif
286 /* ---------------------------------------- */ 290 /* ---------------------------------------- */
287# if defined(TIOCSCTTY) 291# if defined(TIOCSCTTY)
288 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 292 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
289 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd));
290# elif defined(TIOCSETCTTY) 293# elif defined(TIOCSETCTTY)
291 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 294 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
292 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd));
293# else 295# else
294 fd = open (ttydev, O_RDWR); 296 fd = open (ttydev, O_RDWR);
295 D_TTY ((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK"));
296 if (fd >= 0) 297 if (fd >= 0)
297 close(fd); 298 close (fd);
298# endif 299# endif
299 /* ---------------------------------------- */ 300 /* ---------------------------------------- */
300 fd = open ("/dev/tty", O_WRONLY); 301 fd = open ("/dev/tty", O_WRONLY);
301 D_TTY ((stderr, "rxvt_control_tty(): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)"));
302 if (fd < 0) 302 if (fd < 0)
303 return -1; /* fatal */ 303 return -1; /* fatal */
304 close (fd); 304 close (fd);
305 /* ---------------------------------------- */ 305 /* ---------------------------------------- */
306 D_TTY ((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp()));
307 /* ---------------------------------------- */
308#endif /* ! __QNX__ */ 306#endif /* ! __QNX__ */
309 307
310 return 0; 308 return 0;
311} 309}
310
311#ifndef NO_SETOWNER_TTYDEV
312static struct ttyconf {
313 gid_t gid;
314 mode_t mode;
315
316 ttyconf ()
317 {
318#ifdef TTY_GID_SUPPORT
319 struct group *gr = getgrnam ("tty");
320
321 if (gr)
322 { /* change group ownership of tty to "tty" */
323 mode = S_IRUSR | S_IWUSR | S_IWGRP;
324 gid = gr->gr_gid;
325 }
326 else
327#endif /* TTY_GID_SUPPORT */
328 {
329 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
330 gid = getgid ();
331 }
332 }
333} ttyconf;
334
335void
336rxvt_ptytty::privileges (rxvt_privaction action)
337{
338 if (!name || !*name)
339 return;
340
341 rxvt_privileges (RESTORE);
342
343 if (action == SAVE)
344 {
345# ifndef RESET_TTY_TO_COMMON_DEFAULTS
346 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
347 if (lstat (name, &savestat) < 0) /* you lose out */
348 ;
349 else
350# endif
351 {
352 saved = true;
353 chown (name, getuid (), ttyconf.gid); /* fail silently */
354 chmod (name, ttyconf.mode);
355# ifdef HAVE_REVOKE
356 revoke (name);
357# endif
358 }
359 }
360 else
361 { /* action == RESTORE */
362# ifndef RESET_TTY_TO_COMMON_DEFAULTS
363 if (saved)
364 {
365 chmod (name, savestat.st_mode);
366 chown (name, savestat.st_uid, savestat.st_gid);
367 }
368# else
369 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
370 chown (name, 0, 0);
371# endif
372
373 }
374
375 rxvt_privileges (IGNORE);
376}
377#endif
378
379rxvt_ptytty::rxvt_ptytty ()
380{
381 pty = tty = -1;
382 name = 0;
383#ifndef NO_SETOWNER_TTYDEV
384 saved = false;
385#endif
386}
387
388rxvt_ptytty::~rxvt_ptytty ()
389{
390 put ();
391}
392
393void
394
395rxvt_ptytty::close_tty ()
396{
397 if (tty >= 0) close (tty);
398 tty = -1;
399}
400
401void
402rxvt_ptytty::put ()
403{
404#ifndef NO_SETOWNER_TTYDEV
405 if (tty >= 0)
406 privileges (RESTORE);
407#endif
408
409 if (pty >= 0) close (pty);
410 close_tty ();
411 free (name);
412
413 pty = tty = -1;
414 name = 0;
415}
416
417bool
418rxvt_ptytty::make_controlling_tty ()
419{
420 return control_tty (tty, name) >= 0;
421}
422
423bool
424rxvt_ptytty::get ()
425{
426 /* get master (pty) */
427 if ((pty = get_pty (&tty, &name)) < 0)
428 return false;
429
430 fcntl (pty, F_SETFL, O_NONBLOCK);
431
432 /* get slave (tty) */
433 if (tty < 0)
434 {
435#ifndef NO_SETOWNER_TTYDEV
436 privileges (SAVE);
437#endif
438
439 if ((tty = get_tty (name)) < 0)
440 {
441 put ();
442 return false;
443 }
444 }
445
446 return true;
447}
448
449void
450rxvt_ptytty::set_utf8_mode (bool on)
451{
452#ifdef IUTF8
453 if (pty != -1)
454 {
455 struct termios tio;
456
457 if (tcgetattr (pty, &tio) != -1)
458 {
459 tcflag_t new_cflag = tio.c_iflag;
460
461 if (on)
462 new_cflag |= IUTF8;
463 else
464 new_cflag &= ~IUTF8;
465
466 if (new_cflag != tio.c_iflag)
467 {
468 tio.c_iflag = new_cflag;
469 tcsetattr (pty, TCSANOW, &tio);
470 }
471 }
472 }
473#endif
474}
475
312/*----------------------- end-of-file (C source) -----------------------*/ 476/*----------------------- end-of-file (C source) -----------------------*/
477

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