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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.4 by pcg, Tue Dec 2 21:49:46 2003 UTC vs.
Revision 1.35 by root, Tue Jan 17 10:19:13 2006 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*--------------------------------*-C-*---------------------------------*
2 * File: ptytty.c 2 * File: ptytty.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * $Id: ptytty.C,v 1.4 2003/12/02 21:49:46 pcg Exp $
5 * 4 *
6 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
7 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> 6 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
7 * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
8 * 8 *
9 * 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
10 * 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
11 * the Free Software Foundation; either version 2 of the License, or 11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version. 12 * (at your option) any later version.
… …
20 * along with this program; if not, write to the Free Software 20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/ 22 *---------------------------------------------------------------------*/
23 23
24#include "../config.h" /* NECESSARY */ 24#include "../config.h" /* NECESSARY */
25#include "rxvt.h"
25 26
26/*
27 * Try to be self-contained except for the above autoconfig'd defines
28 */
29
30#include <stdio.h>
31#ifdef HAVE_STDLIB_H
32# include <stdlib.h> 27# include <cstdlib>
33#endif 28# include <cstring>
29
34#ifdef HAVE_SYS_TYPES_H 30#ifdef HAVE_SYS_TYPES_H
35# include <sys/types.h> 31# include <sys/types.h>
36#endif 32#endif
37#ifdef HAVE_UNISTD_H 33#ifdef HAVE_UNISTD_H
38# include <unistd.h> 34# include <unistd.h>
39#endif 35#endif
40#if defined(HAVE_STRING_H)
41# include <string.h>
42#endif
43#ifdef HAVE_FCNTL_H 36#ifdef HAVE_FCNTL_H
44# include <fcntl.h> 37# include <fcntl.h>
45#endif 38#endif
46#ifdef HAVE_SYS_IOCTL_H 39#ifdef HAVE_SYS_IOCTL_H
47# include <sys/ioctl.h> 40# include <sys/ioctl.h>
48#endif 41#endif
49#if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) 42#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H)
50# include <sys/stropts.h> /* for I_PUSH */ 43# include <sys/stropts.h> /* for I_PUSH */
51#endif 44#endif
52 45#ifdef HAVE_ISASTREAM
53#ifdef DEBUG_TTY 46# include <stropts.h>
54# define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr)
55#else
56# define D_TTY(x)
57#endif 47#endif
48#if defined(HAVE_PTY_H)
49# include <pty.h>
50#elif defined(HAVE_LIBUTIL_H)
51# include <libutil.h>
52#elif defined(HAVE_UTIL_H)
53# include <util.h>
54#endif
55
56#include <cstdio>
57#include <grp.h>
58 58
59/* ------------------------------------------------------------------------- * 59/* ------------------------------------------------------------------------- *
60 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 60 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
61 * ------------------------------------------------------------------------- */ 61 * ------------------------------------------------------------------------- */
62/* 62/*
63 * Returns pty file descriptor, or -1 on failure 63 * Returns pty file descriptor, or -1 on failure
64 * If successful, ttydev is set to the name of the slave device. 64 * If successful, ttydev is set to the name of the slave device.
65 * fd_tty _may_ also be set to an open fd to the slave device 65 * fd_tty _may_ also be set to an open fd to the slave device
66 */ 66 */
67/* EXTPROTO */ 67static int
68int
69rxvt_get_pty(int *fd_tty, const char **ttydev) 68get_pty (int *fd_tty, char **ttydev)
70{ 69{
71 int pfd; 70 int pfd;
72 71
73#ifdef PTYS_ARE_OPENPTY 72#ifdef PTYS_ARE_OPENPTY
74
75 char tty_name[sizeof "/dev/pts/????\0"]; 73 char tty_name[sizeof "/dev/pts/????\0"];
76 74
75 rxvt_privileges(RESTORE);
77 if (openpty(&pfd, fd_tty, tty_name, NULL, NULL) != -1) 76 int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL);
77 rxvt_privileges(IGNORE);
78
79 if (res != -1)
78 { 80 {
79 *ttydev = strdup(tty_name); 81 *ttydev = strdup (tty_name);
80 return pfd; 82 return pfd;
81 } 83 }
82#endif 84#endif
83 85
84#ifdef PTYS_ARE__GETPTY 86#ifdef PTYS_ARE__GETPTY
85 *ttydev = _getpty(&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 87 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
86 if (*ttydev != NULL) 88 if (*ttydev != NULL)
87 return pfd; 89 return pfd;
88#endif 90#endif
89 91
90#ifdef PTYS_ARE_GETPTY
91
92 char *ptydev;
93
94 while ((ptydev = getpty()) != NULL)
95 if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
96 {
97 *ttydev = ptydev;
98 return pfd;
99 }
100#endif
101
102#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 92#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
103# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 93# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX)
104 94
105 { 95 {
106# ifdef PTYS_ARE_GETPT 96# ifdef PTYS_ARE_GETPT
107 pfd = getpt(); 97 pfd = getpt();
108# else 98# else
109 99# ifdef PTYS_ARE_POSIX
100 pfd = posix_openpt (O_RDWR);
101# else
110 pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 102 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
103# endif
111# endif 104# endif
112 105
113 if (pfd >= 0) 106 if (pfd >= 0)
114 { 107 {
115 if (grantpt(pfd) == 0 /* change slave permissions */ 108 if (grantpt (pfd) == 0 /* change slave permissions */
116 && unlockpt(pfd) == 0) 109 && unlockpt (pfd) == 0)
117 { /* slave now unlocked */ 110 { /* slave now unlocked */
118 *ttydev = ptsname(pfd); /* get slave's name */ 111 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
119 return pfd; 112 return pfd;
120 } 113 }
121 close(pfd); 114 close (pfd);
122 } 115 }
123 } 116 }
124# endif 117# endif
125#endif 118#endif
126 119
127#ifdef PTYS_ARE_PTC 120#ifdef PTYS_ARE_PTC
128 if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 121 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
129 { 122 {
130 *ttydev = ttyname(pfd); 123 *ttydev = strdup (ttyname (pfd));
131 return pfd; 124 return pfd;
132 } 125 }
133#endif 126#endif
134 127
135#ifdef PTYS_ARE_CLONE 128#ifdef PTYS_ARE_CLONE
136 if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 129 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
137 { 130 {
138 *ttydev = ptsname(pfd); 131 *ttydev = strdup (ptsname (pfd));
139 return pfd; 132 return pfd;
140 } 133 }
141#endif 134#endif
142 135
143#ifdef PTYS_ARE_NUMERIC 136#ifdef PTYS_ARE_NUMERIC
144 { 137 {
145 int idx; 138 int idx;
146 char *c1, *c2; 139 char *c1, *c2;
147 char pty_name[] = "/dev/ptyp???"; 140 char pty_name[] = "/dev/ptyp???";
148 char tty_name[] = "/dev/ttyp???"; 141 char tty_name[] = "/dev/ttyp???";
149 142
150 c1 = &(pty_name[sizeof(pty_name) - 4]); 143 c1 = &(pty_name[sizeof (pty_name) - 4]);
151 c2 = &(tty_name[sizeof(tty_name) - 4]); 144 c2 = &(tty_name[sizeof (tty_name) - 4]);
152 for (idx = 0; idx < 256; idx++) 145 for (idx = 0; idx < 256; idx++)
153 { 146 {
154 sprintf(c1, "%d", idx); 147 sprintf (c1, "%d", idx);
155 sprintf(c2, "%d", idx); 148 sprintf (c2, "%d", idx);
156 if (access(tty_name, F_OK) < 0) 149 if (access (tty_name, F_OK) < 0)
157 { 150 {
158 idx = 256; 151 idx = 256;
159 break; 152 break;
160 } 153 }
154
161 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 155 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
162 { 156 {
163 if (access(tty_name, R_OK | W_OK) == 0) 157 if (access (tty_name, R_OK | W_OK) == 0)
164 { 158 {
165 *ttydev = strdup(tty_name); 159 *ttydev = strdup (tty_name);
166 return pfd; 160 return pfd;
167 } 161 }
162
168 close(pfd); 163 close (pfd);
169 } 164 }
170 } 165 }
171 } 166 }
172#endif 167#endif
168
173#ifdef PTYS_ARE_SEARCHED 169#ifdef PTYS_ARE_SEARCHED
174 { 170 {
175 const char *c1, *c2; 171 const char *c1, *c2;
176 char pty_name[] = "/dev/pty??"; 172 char pty_name[] = "/dev/pty??";
177 char tty_name[] = "/dev/tty??"; 173 char tty_name[] = "/dev/tty??";
178 174
179# ifndef PTYCHAR1 175# ifndef PTYCHAR1
180# define PTYCHAR1 "pqrstuvwxyz" 176# define PTYCHAR1 "pqrstuvwxyz"
181# endif 177# endif
182# ifndef PTYCHAR2 178# ifndef PTYCHAR2
183# define PTYCHAR2 "0123456789abcdef" 179# define PTYCHAR2 "0123456789abcdef"
184# endif 180# endif
185 181
186 for (c1 = PTYCHAR1; *c1; c1++) 182 for (c1 = PTYCHAR1; *c1; c1++)
187 { 183 {
188 pty_name[(sizeof(pty_name) - 3)] = 184 pty_name[ (sizeof (pty_name) - 3)] =
189 tty_name[(sizeof(pty_name) - 3)] = *c1; 185 tty_name[ (sizeof (pty_name) - 3)] = *c1;
190 for (c2 = PTYCHAR2; *c2; c2++) 186 for (c2 = PTYCHAR2; *c2; c2++)
191 { 187 {
192 pty_name[(sizeof(pty_name) - 2)] = 188 pty_name[ (sizeof (pty_name) - 2)] =
193 tty_name[(sizeof(pty_name) - 2)] = *c2; 189 tty_name[ (sizeof (pty_name) - 2)] = *c2;
194 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 190 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
195 { 191 {
196 if (access(tty_name, R_OK | W_OK) == 0) 192 if (access (tty_name, R_OK | W_OK) == 0)
197 { 193 {
198 *ttydev = strdup(tty_name); 194 *ttydev = strdup (tty_name);
199 return pfd; 195 return pfd;
200 } 196 }
197
201 close(pfd); 198 close (pfd);
202 } 199 }
203 } 200 }
204 } 201 }
205 } 202 }
206#endif 203#endif
204
207 return -1; 205 return -1;
208} 206}
209 207
210/*----------------------------------------------------------------------*/ 208/*----------------------------------------------------------------------*/
211/* 209/*
212 * Returns tty file descriptor, or -1 on failure 210 * Returns tty file descriptor, or -1 on failure
213 */ 211 */
214/* EXTPROTO */ 212static int
215int
216rxvt_get_tty (const char *ttydev) 213get_tty (char *ttydev)
217{ 214{
218 return open (ttydev, O_RDWR | O_NOCTTY, 0); 215 return open (ttydev, O_RDWR | O_NOCTTY, 0);
219} 216}
220 217
221/*----------------------------------------------------------------------*/ 218/*----------------------------------------------------------------------*/
222/* 219/*
223 * Make our tty a controlling tty so that /dev/tty points to us 220 * Make our tty a controlling tty so that /dev/tty points to us
224 */ 221 */
225/* EXTPROTO */ 222static int
226int
227rxvt_control_tty (int fd_tty, const char *ttydev) 223control_tty (int fd_tty, const char *ttydev)
228{ 224{
229#ifndef __QNX__ 225#ifndef __QNX__
230 int fd; 226 int fd;
231 227
232 D_TTY ((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev));
233 /* ---------------------------------------- */ 228 /* ---------------------------------------- */
234# ifdef HAVE_SETSID 229# ifdef HAVE_SETSID
235 setsid (); 230 setsid ();
236# endif 231# endif
237# if defined(HAVE_SETPGID) 232# if defined(HAVE_SETPGID)
238 setpgid (0, 0); 233 setpgid (0, 0);
239# elif defined(HAVE_SETPGRP) 234# elif defined(HAVE_SETPGRP)
240 setpgrp (0, 0); 235 setpgrp (0, 0);
241# endif 236# endif
237
242 /* ---------------------------------------- */ 238 /* ---------------------------------------- */
243# ifdef TIOCNOTTY 239# ifdef TIOCNOTTY
244
245 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 240 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
246 D_TTY ((stderr, "rxvt_control_tty(): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes"));
247 if (fd >= 0) 241 if (fd >= 0)
248 { 242 {
249 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ 243 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
250 close (fd); 244 close (fd);
251 } 245 }
252# endif 246# endif
247
253 /* ---------------------------------------- */ 248 /* ---------------------------------------- */
254 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
255 D_TTY ((stderr, "rxvt_control_tty(): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)"));
256 if (fd >= 0) 250 if (fd >= 0)
257 close (fd); /* ouch: still have controlling tty */ 251 close (fd); /* ouch: still have controlling tty */
252
258 /* ---------------------------------------- */ 253 /* ---------------------------------------- */
259#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 254#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
260 /* 255 /*
261 * Push STREAMS modules: 256 * Push STREAMS modules:
262 * ptem: pseudo-terminal hardware emulation module. 257 * ptem: pseudo-terminal hardware emulation module.
263 * ldterm: standard terminal line discipline. 258 * ldterm: standard terminal line discipline.
264 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 259 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
265 * 260 *
266 * After we push the STREAMS modules, the first open() on the slave side 261 * After we push the STREAMS modules, the first open () on the slave side
267 * (i.e. the next section between the dashes giving us "tty opened OK") 262 * (i.e. the next section between the dashes giving us "tty opened OK")
268 * should make the "ptem" (or "ldterm" depending upon either which OS 263 * should make the "ptem" (or "ldterm" depending upon either which OS
269 * version or which set of manual pages you have) module give us a 264 * version or which set of manual pages you have) module give us a
270 * controlling terminal. We must already have close()d the master side 265 * controlling terminal. We must already have close ()d the master side
271 * fd in this child process before we push STREAMS modules on because the 266 * fd in this child process before we push STREAMS modules on because the
272 * documentation is really unclear about whether it is any close() on 267 * documentation is really unclear about whether it is any close () on
273 * the master side or the last close() - i.e. a proper STREAMS dismantling 268 * the master side or the last close () - i.e. a proper STREAMS dismantling
274 * close() - on the master side which causes a hang up to be sent 269 * close () - on the master side which causes a hang up to be sent
275 * through - Geoff Wing 270 * through - Geoff Wing
276 */ 271 */
277# ifdef HAVE_ISASTREAM 272# ifdef HAVE_ISASTREAM
278 if (isastream (fd_tty) == 1) 273 if (isastream (fd_tty) == 1)
279# endif 274# endif
280 { 275 {
281 D_TTY ((stderr, "rxvt_control_tty(): Pushing STREAMS modules"));
282 ioctl (fd_tty, I_PUSH, "ptem"); 276 ioctl (fd_tty, I_PUSH, "ptem");
283 ioctl (fd_tty, I_PUSH, "ldterm"); 277 ioctl (fd_tty, I_PUSH, "ldterm");
284 ioctl (fd_tty, I_PUSH, "ttcompat"); 278 ioctl (fd_tty, I_PUSH, "ttcompat");
285 } 279 }
286#endif 280#endif
287 /* ---------------------------------------- */ 281 /* ---------------------------------------- */
288# if defined(TIOCSCTTY) 282# if defined(TIOCSCTTY)
289 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 283 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
290 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd));
291# elif defined(TIOCSETCTTY) 284# elif defined(TIOCSETCTTY)
292 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 285 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
293 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd));
294# else 286# else
295 fd = open (ttydev, O_RDWR); 287 fd = open (ttydev, O_RDWR);
296 D_TTY ((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK"));
297 if (fd >= 0) 288 if (fd >= 0)
298 close(fd); 289 close (fd);
299# endif 290# endif
300 /* ---------------------------------------- */ 291 /* ---------------------------------------- */
301 fd = open ("/dev/tty", O_WRONLY); 292 fd = open ("/dev/tty", O_WRONLY);
302 D_TTY ((stderr, "rxvt_control_tty(): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)"));
303 if (fd < 0) 293 if (fd < 0)
304 return -1; /* fatal */ 294 return -1; /* fatal */
305 close (fd); 295 close (fd);
306 /* ---------------------------------------- */ 296 /* ---------------------------------------- */
307 D_TTY ((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp()));
308 /* ---------------------------------------- */
309#endif /* ! __QNX__ */ 297#endif /* ! __QNX__ */
310 298
311 return 0; 299 return 0;
312} 300}
301
302#ifndef NO_SETOWNER_TTYDEV
303static struct ttyconf {
304 gid_t gid;
305 mode_t mode;
306
307 ttyconf ()
308 {
309#ifdef TTY_GID_SUPPORT
310 struct group *gr = getgrnam ("tty");
311
312 if (gr)
313 { /* change group ownership of tty to "tty" */
314 mode = S_IRUSR | S_IWUSR | S_IWGRP;
315 gid = gr->gr_gid;
316 }
317 else
318#endif /* TTY_GID_SUPPORT */
319 {
320 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
321 gid = getgid ();
322 }
323 }
324} ttyconf;
325
326void
327rxvt_ptytty::privileges (rxvt_privaction action)
328{
329 if (!name || !*name)
330 return;
331
332 rxvt_privileges (RESTORE);
333
334 if (action == SAVE)
335 {
336# ifndef RESET_TTY_TO_COMMON_DEFAULTS
337 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
338 if (lstat (name, &savestat) < 0) /* you lose out */
339 ;
340 else
341# endif
342 {
343 saved = true;
344 chown (name, getuid (), ttyconf.gid); /* fail silently */
345 chmod (name, ttyconf.mode);
346# ifdef HAVE_REVOKE
347 revoke (name);
348# endif
349 }
350 }
351 else
352 { /* action == RESTORE */
353# ifndef RESET_TTY_TO_COMMON_DEFAULTS
354 if (saved)
355 {
356 chmod (name, savestat.st_mode);
357 chown (name, savestat.st_uid, savestat.st_gid);
358 }
359# else
360 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
361 chown (name, 0, 0);
362# endif
363
364 }
365
366 rxvt_privileges (IGNORE);
367}
368#endif
369
370rxvt_ptytty::rxvt_ptytty ()
371{
372 pty = tty = -1;
373 name = 0;
374#ifndef NO_SETOWNER_TTYDEV
375 saved = false;
376#endif
377#if UTMP_SUPPORT
378 cmd_pid = 0;
379#endif
380}
381
382rxvt_ptytty::~rxvt_ptytty ()
383{
384 logout ();
385 put ();
386}
387
388void
389
390rxvt_ptytty::close_tty ()
391{
392 if (tty < 0)
393 return;
394
395 close (tty);
396 tty = -1;
397}
398
399void
400rxvt_ptytty::put ()
401{
402#ifndef NO_SETOWNER_TTYDEV
403 privileges (RESTORE);
404#endif
405
406 if (pty >= 0) close (pty);
407 close_tty ();
408 free (name);
409
410 pty = tty = -1;
411 name = 0;
412}
413
414bool
415rxvt_ptytty::make_controlling_tty ()
416{
417 return control_tty (tty, name) >= 0;
418}
419
420bool
421rxvt_ptytty::get ()
422{
423 /* get master (pty) */
424 if ((pty = get_pty (&tty, &name)) < 0)
425 return false;
426
427 fcntl (pty, F_SETFL, O_NONBLOCK);
428
429 /* get slave (tty) */
430 if (tty < 0)
431 {
432#ifndef NO_SETOWNER_TTYDEV
433 privileges (SAVE);
434#endif
435
436 if ((tty = get_tty (name)) < 0)
437 {
438 put ();
439 return false;
440 }
441 }
442
443 return true;
444}
445
446void
447rxvt_ptytty::set_utf8_mode (bool on)
448{
449#ifdef IUTF8
450 if (pty < 0)
451 return;
452
453 struct termios tio;
454
455 if (tcgetattr (pty, &tio) != -1)
456 {
457 tcflag_t new_cflag = tio.c_iflag;
458
459 if (on)
460 new_cflag |= IUTF8;
461 else
462 new_cflag &= ~IUTF8;
463
464 if (new_cflag != tio.c_iflag)
465 {
466 tio.c_iflag = new_cflag;
467 tcsetattr (pty, TCSANOW, &tio);
468 }
469 }
470#endif
471}
472
313/*----------------------- end-of-file (C source) -----------------------*/ 473/*----------------------- end-of-file (C source) -----------------------*/
474

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