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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 1.25 by root, Sun Jan 1 05:08:41 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 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 27#ifdef HAVE_STDLIB_H
32# include <stdlib.h> 28# include <cstdlib>
33#endif 29#endif
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) 36#if defined(HAVE_STRING_H)
41# include <string.h> 37# include <cstring>
42#endif 38#endif
43#ifdef HAVE_FCNTL_H 39#ifdef HAVE_FCNTL_H
44# include <fcntl.h> 40# include <fcntl.h>
45#endif 41#endif
46#ifdef HAVE_SYS_IOCTL_H 42#ifdef HAVE_SYS_IOCTL_H
47# include <sys/ioctl.h> 43# include <sys/ioctl.h>
48#endif 44#endif
49#if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) 45#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H)
50# include <sys/stropts.h> /* for I_PUSH */ 46# include <sys/stropts.h> /* for I_PUSH */
51#endif 47#endif
52 48#ifdef HAVE_ISASTREAM
53#ifdef DEBUG_TTY 49# include <stropts.h>
54# define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr)
55#else
56# define D_TTY(x)
57#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>
58 64
59/* ------------------------------------------------------------------------- * 65/* ------------------------------------------------------------------------- *
60 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 66 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
61 * ------------------------------------------------------------------------- */ 67 * ------------------------------------------------------------------------- */
62/* 68/*
63 * Returns pty file descriptor, or -1 on failure 69 * Returns pty file descriptor, or -1 on failure
64 * 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.
65 * 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
66 */ 72 */
67/* EXTPROTO */ 73static int
68int
69rxvt_get_pty(int *fd_tty, const char **ttydev) 74get_pty (int *fd_tty, char **ttydev)
70{ 75{
71 int pfd; 76 int pfd;
72 77
73#ifdef PTYS_ARE_OPENPTY 78#ifdef PTYS_ARE_OPENPTY
74
75 char tty_name[sizeof "/dev/pts/????\0"]; 79 char tty_name[sizeof "/dev/pts/?????\0"];
76 80
81 rxvt_privileges (RESTORE);
77 if (openpty(&pfd, fd_tty, tty_name, NULL, NULL) != -1) 82 int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL);
83 rxvt_privileges (IGNORE);
84
85 if (res != -1)
78 { 86 {
79 *ttydev = strdup(tty_name); 87 *ttydev = strdup (tty_name);
80 return pfd; 88 return pfd;
81 } 89 }
82#endif 90#endif
83 91
84#ifdef PTYS_ARE__GETPTY 92#ifdef PTYS_ARE__GETPTY
85 *ttydev = _getpty(&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 93 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
86 if (*ttydev != NULL) 94 if (*ttydev != NULL)
87 return pfd; 95 return pfd;
88#endif 96#endif
89 97
90#ifdef PTYS_ARE_GETPTY 98#ifdef PTYS_ARE_GETPTY
91 99
92 char *ptydev; 100 char *ptydev;
93 101
94 while ((ptydev = getpty()) != NULL) 102 while ((ptydev = getpty ()) != NULL)
95 if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) 103 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
96 { 104 {
97 *ttydev = ptydev; 105 *ttydev = ptydev;
98 return pfd; 106 return pfd;
99 } 107 }
100#endif 108#endif
… …
102#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 110#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
103# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 111# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
104 112
105 { 113 {
106# ifdef PTYS_ARE_GETPT 114# ifdef PTYS_ARE_GETPT
107 pfd = getpt(); 115 pfd = getpt ();
108# else 116# else
109
110 pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 117 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
111# endif 118# endif
112 119
113 if (pfd >= 0) 120 if (pfd >= 0)
114 { 121 {
115 if (grantpt(pfd) == 0 /* change slave permissions */ 122 if (grantpt (pfd) == 0 /* change slave permissions */
116 && unlockpt(pfd) == 0) 123 && unlockpt (pfd) == 0)
117 { /* slave now unlocked */ 124 { /* slave now unlocked */
118 *ttydev = ptsname(pfd); /* get slave's name */ 125 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
119 return pfd; 126 return pfd;
120 } 127 }
121 close(pfd); 128 close (pfd);
122 } 129 }
123 } 130 }
124# endif 131# endif
125#endif 132#endif
126 133
127#ifdef PTYS_ARE_PTC 134#ifdef PTYS_ARE_PTC
128 if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 135 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
129 { 136 {
130 *ttydev = ttyname(pfd); 137 *ttydev = strdup (ttyname (pfd));
131 return pfd; 138 return pfd;
132 } 139 }
133#endif 140#endif
134 141
135#ifdef PTYS_ARE_CLONE 142#ifdef PTYS_ARE_CLONE
136 if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 143 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
137 { 144 {
138 *ttydev = ptsname(pfd); 145 *ttydev = strdup (ptsname (pfd));
139 return pfd; 146 return pfd;
140 } 147 }
141#endif 148#endif
142 149
143#ifdef PTYS_ARE_NUMERIC 150#ifdef PTYS_ARE_NUMERIC
144 { 151 {
145 int idx; 152 int idx;
146 char *c1, *c2; 153 char *c1, *c2;
147 char pty_name[] = "/dev/ptyp???"; 154 char pty_name[] = "/dev/ptyp???";
148 char tty_name[] = "/dev/ttyp???"; 155 char tty_name[] = "/dev/ttyp???";
149 156
150 c1 = &(pty_name[sizeof(pty_name) - 4]); 157 c1 = &(pty_name[sizeof (pty_name) - 4]);
151 c2 = &(tty_name[sizeof(tty_name) - 4]); 158 c2 = &(tty_name[sizeof (tty_name) - 4]);
152 for (idx = 0; idx < 256; idx++) 159 for (idx = 0; idx < 256; idx++)
153 { 160 {
154 sprintf(c1, "%d", idx); 161 sprintf (c1, "%d", idx);
155 sprintf(c2, "%d", idx); 162 sprintf (c2, "%d", idx);
156 if (access(tty_name, F_OK) < 0) 163 if (access (tty_name, F_OK) < 0)
157 { 164 {
158 idx = 256; 165 idx = 256;
159 break; 166 break;
160 } 167 }
168
161 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 169 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
162 { 170 {
163 if (access(tty_name, R_OK | W_OK) == 0) 171 if (access (tty_name, R_OK | W_OK) == 0)
164 { 172 {
165 *ttydev = strdup(tty_name); 173 *ttydev = strdup (tty_name);
166 return pfd; 174 return pfd;
167 } 175 }
176
168 close(pfd); 177 close (pfd);
169 } 178 }
170 } 179 }
171 } 180 }
172#endif 181#endif
182
173#ifdef PTYS_ARE_SEARCHED 183#ifdef PTYS_ARE_SEARCHED
174 { 184 {
175 const char *c1, *c2; 185 const char *c1, *c2;
176 char pty_name[] = "/dev/pty??"; 186 char pty_name[] = "/dev/pty??";
177 char tty_name[] = "/dev/tty??"; 187 char tty_name[] = "/dev/tty??";
178 188
179# ifndef PTYCHAR1 189# ifndef PTYCHAR1
180# define PTYCHAR1 "pqrstuvwxyz" 190# define PTYCHAR1 "pqrstuvwxyz"
181# endif 191# endif
182# ifndef PTYCHAR2 192# ifndef PTYCHAR2
183# define PTYCHAR2 "0123456789abcdef" 193# define PTYCHAR2 "0123456789abcdef"
184# endif 194# endif
185 195
186 for (c1 = PTYCHAR1; *c1; c1++) 196 for (c1 = PTYCHAR1; *c1; c1++)
187 { 197 {
188 pty_name[(sizeof(pty_name) - 3)] = 198 pty_name[ (sizeof (pty_name) - 3)] =
189 tty_name[(sizeof(pty_name) - 3)] = *c1; 199 tty_name[ (sizeof (pty_name) - 3)] = *c1;
190 for (c2 = PTYCHAR2; *c2; c2++) 200 for (c2 = PTYCHAR2; *c2; c2++)
191 { 201 {
192 pty_name[(sizeof(pty_name) - 2)] = 202 pty_name[ (sizeof (pty_name) - 2)] =
193 tty_name[(sizeof(pty_name) - 2)] = *c2; 203 tty_name[ (sizeof (pty_name) - 2)] = *c2;
194 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 204 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
195 { 205 {
196 if (access(tty_name, R_OK | W_OK) == 0) 206 if (access (tty_name, R_OK | W_OK) == 0)
197 { 207 {
198 *ttydev = strdup(tty_name); 208 *ttydev = strdup (tty_name);
199 return pfd; 209 return pfd;
200 } 210 }
211
201 close(pfd); 212 close (pfd);
202 } 213 }
203 } 214 }
204 } 215 }
205 } 216 }
206#endif 217#endif
218
207 return -1; 219 return -1;
208} 220}
209 221
210/*----------------------------------------------------------------------*/ 222/*----------------------------------------------------------------------*/
211/* 223/*
212 * Returns tty file descriptor, or -1 on failure 224 * Returns tty file descriptor, or -1 on failure
213 */ 225 */
214/* EXTPROTO */ 226static int
215int
216rxvt_get_tty (const char *ttydev) 227get_tty (char *ttydev)
217{ 228{
218 return open (ttydev, O_RDWR | O_NOCTTY, 0); 229 return open (ttydev, O_RDWR | O_NOCTTY, 0);
219} 230}
220 231
221/*----------------------------------------------------------------------*/ 232/*----------------------------------------------------------------------*/
222/* 233/*
223 * Make our tty a controlling tty so that /dev/tty points to us 234 * Make our tty a controlling tty so that /dev/tty points to us
224 */ 235 */
225/* EXTPROTO */ 236static int
226int
227rxvt_control_tty (int fd_tty, const char *ttydev) 237control_tty (int fd_tty, const char *ttydev)
228{ 238{
229#ifndef __QNX__ 239#ifndef __QNX__
230 int fd; 240 int fd;
231 241
232 D_TTY ((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev));
233 /* ---------------------------------------- */ 242 /* ---------------------------------------- */
234# ifdef HAVE_SETSID 243# ifdef HAVE_SETSID
235 setsid (); 244 setsid ();
236# endif 245# endif
237# if defined(HAVE_SETPGID) 246# if defined(HAVE_SETPGID)
238 setpgid (0, 0); 247 setpgid (0, 0);
239# elif defined(HAVE_SETPGRP) 248# elif defined(HAVE_SETPGRP)
240 setpgrp (0, 0); 249 setpgrp (0, 0);
241# endif 250# endif
251
242 /* ---------------------------------------- */ 252 /* ---------------------------------------- */
243# ifdef TIOCNOTTY 253# ifdef TIOCNOTTY
244
245 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 254 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) 255 if (fd >= 0)
248 { 256 {
249 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ 257 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
250 close (fd); 258 close (fd);
251 } 259 }
252# endif 260# endif
261
253 /* ---------------------------------------- */ 262 /* ---------------------------------------- */
254 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 263 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) 264 if (fd >= 0)
257 close (fd); /* ouch: still have controlling tty */ 265 close (fd); /* ouch: still have controlling tty */
266
258 /* ---------------------------------------- */ 267 /* ---------------------------------------- */
259#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 268#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
260 /* 269 /*
261 * Push STREAMS modules: 270 * Push STREAMS modules:
262 * ptem: pseudo-terminal hardware emulation module. 271 * ptem: pseudo-terminal hardware emulation module.
263 * ldterm: standard terminal line discipline. 272 * ldterm: standard terminal line discipline.
264 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 273 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
265 * 274 *
266 * After we push the STREAMS modules, the first open() on the slave side 275 * 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") 276 * (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 277 * 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 278 * 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 279 * 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 280 * 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 281 * 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 282 * 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 283 * close () - on the master side which causes a hang up to be sent
275 * through - Geoff Wing 284 * through - Geoff Wing
276 */ 285 */
277# ifdef HAVE_ISASTREAM 286# ifdef HAVE_ISASTREAM
278 if (isastream (fd_tty) == 1) 287 if (isastream (fd_tty) == 1)
279# endif 288# endif
280 { 289 {
281 D_TTY ((stderr, "rxvt_control_tty(): Pushing STREAMS modules"));
282 ioctl (fd_tty, I_PUSH, "ptem"); 290 ioctl (fd_tty, I_PUSH, "ptem");
283 ioctl (fd_tty, I_PUSH, "ldterm"); 291 ioctl (fd_tty, I_PUSH, "ldterm");
284 ioctl (fd_tty, I_PUSH, "ttcompat"); 292 ioctl (fd_tty, I_PUSH, "ttcompat");
285 } 293 }
286#endif 294#endif
287 /* ---------------------------------------- */ 295 /* ---------------------------------------- */
288# if defined(TIOCSCTTY) 296# if defined(TIOCSCTTY)
289 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 297 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
290 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd));
291# elif defined(TIOCSETCTTY) 298# elif defined(TIOCSETCTTY)
292 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 299 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
293 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd));
294# else 300# else
295 fd = open (ttydev, O_RDWR); 301 fd = open (ttydev, O_RDWR);
296 D_TTY ((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK"));
297 if (fd >= 0) 302 if (fd >= 0)
298 close(fd); 303 close (fd);
299# endif 304# endif
300 /* ---------------------------------------- */ 305 /* ---------------------------------------- */
301 fd = open ("/dev/tty", O_WRONLY); 306 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) 307 if (fd < 0)
304 return -1; /* fatal */ 308 return -1; /* fatal */
305 close (fd); 309 close (fd);
306 /* ---------------------------------------- */ 310 /* ---------------------------------------- */
307 D_TTY ((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp()));
308 /* ---------------------------------------- */
309#endif /* ! __QNX__ */ 311#endif /* ! __QNX__ */
310 312
311 return 0; 313 return 0;
312} 314}
315
316#ifndef NO_SETOWNER_TTYDEV
317static struct ttyconf {
318 gid_t gid;
319 mode_t mode;
320
321 ttyconf ()
322 {
323#ifdef TTY_GID_SUPPORT
324 struct group *gr = getgrnam ("tty");
325
326 if (gr)
327 { /* change group ownership of tty to "tty" */
328 mode = S_IRUSR | S_IWUSR | S_IWGRP;
329 gid = gr->gr_gid;
330 }
331 else
332#endif /* TTY_GID_SUPPORT */
333 {
334 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
335 gid = getgid ();
336 }
337 }
338} ttyconf;
339
340void
341rxvt_ptytty::privileges (rxvt_privaction action)
342{
343 if (pty < 0)
344 return;
345
346 rxvt_privileges (RESTORE);
347
348 if (action == SAVE)
349 {
350 //next_tty_action = RESTORE;
351# ifndef RESET_TTY_TO_COMMON_DEFAULTS
352 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
353 if (lstat (name, &savestat) < 0) /* you lose out */
354 ;//next_tty_action = IGNORE;
355 else
356# endif
357 {
358 chown (name, getuid (), ttyconf.gid); /* fail silently */
359 chmod (name, ttyconf.mode);
360# ifdef HAVE_REVOKE
361 revoke (name);
362# endif
363 }
364 }
365 else
366 { /* action == RESTORE */
367 //next_tty_action = IGNORE;
368# ifndef RESET_TTY_TO_COMMON_DEFAULTS
369 chmod (name, savestat.st_mode);
370 chown (name, savestat.st_uid, savestat.st_gid);
371# else
372 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
373 chown (name, 0, 0);
374# endif
375
376 }
377
378 rxvt_privileges (IGNORE);
379}
380#endif
381
382rxvt_ptytty::rxvt_ptytty ()
383{
384 pty = tty = -1;
385 name = 0;
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
313/*----------------------- end-of-file (C source) -----------------------*/ 476/*----------------------- end-of-file (C source) -----------------------*/
477

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