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Comparing libptytty/src/ptytty.C (file contents):
Revision 1.1 by root, Sat Jan 21 21:40:00 2006 UTC vs.
Revision 1.49 by sf-exg, Wed Jan 18 20:05:13 2012 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
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 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
8 * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
8 * 9 *
9 * This program is free software; you can redistribute it and/or modify 10 * 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 11 * 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 12 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version. 13 * (at your option) any later version.
… …
19 * You should have received a copy of the GNU General Public License 20 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software 21 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/ 23 *---------------------------------------------------------------------*/
23 24
24#include "../config.h" /* NECESSARY */ 25#include "config.h"
26
25#include "rxvt.h" 27#include "ptytty.h"
26 28
27#ifdef HAVE_STDLIB_H
28# include <cstdlib> 29#include <stdlib.h>
29#endif 30#include <cstdio>
30#ifdef HAVE_SYS_TYPES_H 31#include <cstring>
32
31# include <sys/types.h> 33#include <sys/types.h>
32#endif 34#include <sys/stat.h>
33#ifdef HAVE_UNISTD_H
34# include <unistd.h> 35#include <unistd.h>
35#endif
36#if defined(HAVE_STRING_H)
37# include <cstring>
38#endif
39#ifdef HAVE_FCNTL_H
40# include <fcntl.h> 36#include <fcntl.h>
41#endif 37
42#ifdef HAVE_SYS_IOCTL_H 38#ifdef HAVE_SYS_IOCTL_H
43# include <sys/ioctl.h> 39# include <sys/ioctl.h>
44#endif 40#endif
45#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) 41#if defined(HAVE_SYS_STROPTS_H)
46# include <sys/stropts.h> /* for I_PUSH */ 42# include <sys/stropts.h> /* for I_PUSH */
47#endif 43#endif
48#ifdef HAVE_ISASTREAM 44#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
49# include <stropts.h> 45# include <stropts.h>
50#endif 46#endif
51#ifdef HAVE_PTY_H 47#if defined(HAVE_PTY_H)
52# include <pty.h> 48# include <pty.h>
53#endif 49#elif defined(HAVE_LIBUTIL_H)
54
55// better do this via configure, but....
56#if defined(__FreeBSD__)
57# include <libutil.h> 50# include <libutil.h>
58#elif defined(__DARWIN__) || (defined (__MACH__) && defined (__APPLE__)) 51#elif defined(HAVE_UTIL_H)
59# include <util.h> 52# include <util.h>
60#endif 53#endif
61 54#ifdef TTY_GID_SUPPORT
62#include <cstdio>
63#include <grp.h> 55#include <grp.h>
56#endif
57
58#ifndef O_NOCTTY
59# define O_NOCTTY 0
60#endif
61
62/////////////////////////////////////////////////////////////////////////////
64 63
65/* ------------------------------------------------------------------------- * 64/* ------------------------------------------------------------------------- *
66 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 65 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
67 * ------------------------------------------------------------------------- */ 66 * ------------------------------------------------------------------------- */
68/* 67/*
69 * Returns pty file descriptor, or -1 on failure 68 * Returns pty file descriptor, or -1 on failure
70 * If successful, ttydev is set to the name of the slave device. 69 * If successful, ttydev is set to the name of the slave device.
71 * fd_tty _may_ also be set to an open fd to the slave device 70 * fd_tty _may_ also be set to an open fd to the slave device
72 */ 71 */
72#if defined(UNIX98_PTY)
73
73static int 74 static int
74get_pty (int *fd_tty, char **ttydev) 75 get_pty (int *fd_tty, char **ttydev)
75{
76 int pfd;
77
78#ifdef PTYS_ARE_OPENPTY
79 char tty_name[sizeof "/dev/pts/????\0"];
80
81 if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1)
82 {
83 *ttydev = strdup (tty_name);
84 return pfd;
85 }
86#endif
87
88#ifdef PTYS_ARE__GETPTY
89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
90 if (*ttydev != NULL)
91 return pfd;
92#endif
93
94#ifdef PTYS_ARE_GETPTY
95 char *ptydev;
96
97 while ((ptydev = getpty ()) != NULL)
98 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
99 {
100 *ttydev = ptydev;
101 return pfd;
102 }
103#endif
104
105#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
106# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
107
108 { 76 {
109# ifdef PTYS_ARE_GETPT 77 int pfd;
78
79# if defined(HAVE_GETPT)
110 pfd = getpt (); 80 pfd = getpt ();
81# elif defined(HAVE_POSIX_OPENPT)
82 pfd = posix_openpt (O_RDWR | O_NOCTTY);
83# else
84# ifdef _AIX
85 pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0);
111# else 86# else
112 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 87 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
113# endif 88# endif
89# endif
114 90
115 if (pfd >= 0) 91 if (pfd >= 0)
116 { 92 {
117 if (grantpt (pfd) == 0 /* change slave permissions */ 93 if (grantpt (pfd) == 0 /* change slave permissions */
118 && unlockpt (pfd) == 0) 94 && unlockpt (pfd) == 0)
95 {
119 { /* slave now unlocked */ 96 /* slave now unlocked */
120 *ttydev = strdup (ptsname (pfd)); /* get slave's name */ 97 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
121 return pfd; 98 return pfd;
122 } 99 }
100
123 close (pfd); 101 close (pfd);
124 } 102 }
103
104 return -1;
125 } 105 }
126# endif
127#endif
128 106
129#ifdef PTYS_ARE_PTC 107#elif defined(HAVE_OPENPTY)
130 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
131 {
132 *ttydev = strdup (ttyname (pfd));
133 return pfd;
134 }
135#endif
136 108
137#ifdef PTYS_ARE_CLONE 109 static int
138 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 110 get_pty (int *fd_tty, char **ttydev)
139 {
140 *ttydev = strdup (ptsname (pfd));
141 return pfd;
142 }
143#endif
144
145#ifdef PTYS_ARE_NUMERIC
146 { 111 {
147 int idx; 112 int pfd;
148 char *c1, *c2; 113 int res;
149 char pty_name[] = "/dev/ptyp???";
150 char tty_name[] = "/dev/ttyp???";
151 114
152 c1 = &(pty_name[sizeof (pty_name) - 4]); 115 res = openpty (&pfd, fd_tty, NULL, NULL, NULL);
153 c2 = &(tty_name[sizeof (tty_name) - 4]); 116
154 for (idx = 0; idx < 256; idx++) 117 if (res != -1)
155 { 118 {
156 sprintf (c1, "%d", idx); 119 *ttydev = strdup (ttyname (*fd_tty));
157 sprintf (c2, "%d", idx); 120 return pfd;
158 if (access (tty_name, F_OK) < 0) 121 }
122
123 return -1;
124 }
125
126#elif defined(HAVE__GETPTY)
127
128 static int
129 get_pty (int *fd_tty, char **ttydev)
130 {
131 int pfd;
132 char *slave;
133
134 slave = _getpty (&pfd, O_RDWR | O_NOCTTY, 0622, 0);
135
136 if (slave != NULL)
137 {
138 *ttydev = strdup (slave);
139 return pfd;
140 }
141
142 return -1;
143 }
144
145#else
146
147 /* Based on the code in openssh/openbsd-compat/bsd-openpty.c */
148 static int
149 get_pty (int *fd_tty, char **ttydev)
150 {
151 int pfd;
152 int i;
153 char pty_name[32];
154 char tty_name[32];
155 const char *majors = "pqrstuvwxyzabcde";
156 const char *minors = "0123456789abcdef";
157
158 for (i = 0; i < 256; i++)
159 {
160 snprintf (pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]);
161 snprintf (tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]);
162
163 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
159 { 164 {
160 idx = 256; 165 snprintf (pty_name, 32, "/dev/ptyp%d", i);
161 break; 166 snprintf (tty_name, 32, "/dev/ttyp%d", i);
167 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
168 continue;
162 } 169 }
163 170
164 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 171 if (access (tty_name, R_OK | W_OK) == 0)
165 { 172 {
166 if (access (tty_name, R_OK | W_OK) == 0)
167 {
168 *ttydev = strdup (tty_name); 173 *ttydev = strdup (tty_name);
169 return pfd; 174 return pfd;
170 }
171
172 close (pfd);
173 } 175 }
176
177 close (pfd);
174 } 178 }
179
180 return -1;
175 } 181 }
176#endif
177 182
178#ifdef PTYS_ARE_SEARCHED
179 {
180 const char *c1, *c2;
181 char pty_name[] = "/dev/pty??";
182 char tty_name[] = "/dev/tty??";
183
184# ifndef PTYCHAR1
185# define PTYCHAR1 "pqrstuvwxyz"
186# endif 183#endif
187# ifndef PTYCHAR2
188# define PTYCHAR2 "0123456789abcdef"
189# endif
190
191 for (c1 = PTYCHAR1; *c1; c1++)
192 {
193 pty_name[ (sizeof (pty_name) - 3)] =
194 tty_name[ (sizeof (pty_name) - 3)] = *c1;
195 for (c2 = PTYCHAR2; *c2; c2++)
196 {
197 pty_name[ (sizeof (pty_name) - 2)] =
198 tty_name[ (sizeof (pty_name) - 2)] = *c2;
199 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
200 {
201 if (access (tty_name, R_OK | W_OK) == 0)
202 {
203 *ttydev = strdup (tty_name);
204 return pfd;
205 }
206
207 close (pfd);
208 }
209 }
210 }
211 }
212#endif
213
214 return -1;
215}
216 184
217/*----------------------------------------------------------------------*/ 185/*----------------------------------------------------------------------*/
218/* 186/*
219 * Returns tty file descriptor, or -1 on failure 187 * Returns tty file descriptor, or -1 on failure
220 */ 188 */
221static int 189static int
222get_tty (char *ttydev) 190get_tty (char *ttydev)
223{ 191{
224 return open (ttydev, O_RDWR | O_NOCTTY, 0); 192 return open (ttydev, O_RDWR | O_NOCTTY, 0);
… …
227/*----------------------------------------------------------------------*/ 195/*----------------------------------------------------------------------*/
228/* 196/*
229 * Make our tty a controlling tty so that /dev/tty points to us 197 * Make our tty a controlling tty so that /dev/tty points to us
230 */ 198 */
231static int 199static int
232control_tty (int fd_tty, const char *ttydev) 200control_tty (int fd_tty)
233{ 201{
234#ifndef __QNX__
235 int fd; 202 int fd;
236 203
237 /* ---------------------------------------- */
238# ifdef HAVE_SETSID
239 setsid (); 204 setsid ();
205
206#ifdef TIOCSCTTY
207 ioctl (fd_tty, TIOCSCTTY, NULL);
208#else
209 fd = open (ttyname (fd_tty), O_RDWR);
210 if (fd >= 0)
211 close (fd);
212#endif
213
214 fd = open ("/dev/tty", O_WRONLY);
215 if (fd < 0)
216 return -1; /* fatal */
217
218 close (fd);
219
220 return 0;
221}
222
223void
224ptytty::close_tty ()
225{
226 if (tty < 0)
227 return;
228
229 close (tty);
230 tty = -1;
231}
232
233bool
234ptytty::make_controlling_tty ()
235{
236 return control_tty (tty) >= 0;
237}
238
239void
240ptytty::set_utf8_mode (bool on)
241{
242#ifdef IUTF8
243 if (pty < 0)
244 return;
245
246 struct termios tio;
247
248 if (tcgetattr (pty, &tio) != -1)
249 {
250 tcflag_t new_cflag = tio.c_iflag;
251
252 if (on)
253 new_cflag |= IUTF8;
254 else
255 new_cflag &= ~IUTF8;
256
257 if (new_cflag != tio.c_iflag)
258 {
259 tio.c_iflag = new_cflag;
260 tcsetattr (pty, TCSANOW, &tio);
261 }
262 }
263#endif
264}
265
266static struct ttyconf {
267 gid_t gid;
268 mode_t mode;
269
270 ttyconf ()
271 {
272#ifdef TTY_GID_SUPPORT
273 struct group *gr = getgrnam ("tty");
274
275 if (gr)
276 {
277 /* change group ownership of tty to "tty" */
278 mode = S_IRUSR | S_IWUSR | S_IWGRP;
279 gid = gr->gr_gid;
280 }
281 else
282#endif /* TTY_GID_SUPPORT */
283 {
284 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
285 gid = 0;
286 }
287 }
288} ttyconf;
289
290ptytty_unix::ptytty_unix ()
291{
292 name = 0;
293#if UTMP_SUPPORT
294 cmd_pid = 0;
295#endif
296}
297
298ptytty_unix::~ptytty_unix ()
299{
300#if UTMP_SUPPORT
301 logout ();
302#endif
303 put ();
304}
305
306void
307ptytty_unix::put ()
308{
309 if (name)
310 {
311 chmod (name, RESTORE_TTY_MODE);
312 chown (name, 0, ttyconf.gid);
313 }
314
315 close_tty ();
316
317 if (pty >= 0)
318 close (pty);
319
320 free (name);
321
322 pty = tty = -1;
323 name = 0;
324}
325
326bool
327ptytty_unix::get ()
328{
329 /* get master (pty) */
330 if ((pty = get_pty (&tty, &name)) < 0)
331 return false;
332
333 /* get slave (tty) */
334 if (tty < 0)
335 {
336#ifndef NO_SETOWNER_TTYDEV
337 chown (name, getuid (), ttyconf.gid); /* fail silently */
338 chmod (name, ttyconf.mode);
339# ifdef HAVE_REVOKE
340 revoke (name);
240# endif 341# endif
241# if defined(HAVE_SETPGID)
242 setpgid (0, 0);
243# elif defined(HAVE_SETPGRP)
244 setpgrp (0, 0);
245# endif 342#endif
246 343
247 /* ---------------------------------------- */ 344 if ((tty = get_tty (name)) < 0)
248# ifdef TIOCNOTTY 345 {
249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 346 put ();
250 if (fd >= 0) 347 return false;
348 }
251 { 349 }
252 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
253 close (fd);
254 }
255# endif
256 350
257 /* ---------------------------------------- */ 351#if defined(I_PUSH)
258 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
259 if (fd >= 0)
260 close (fd); /* ouch: still have controlling tty */
261
262 /* ---------------------------------------- */
263#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
264 /* 352 /*
265 * Push STREAMS modules: 353 * Push STREAMS modules:
266 * ptem: pseudo-terminal hardware emulation module. 354 * ptem: pseudo-terminal hardware emulation module.
267 * ldterm: standard terminal line discipline. 355 * ldterm: standard terminal line discipline.
268 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 356 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
269 * 357 *
270 * After we push the STREAMS modules, the first open () on the slave side 358 * After we push the STREAMS modules, the first open () on the slave side
271 * (i.e. the next section between the dashes giving us "tty opened OK")
272 * should make the "ptem" (or "ldterm" depending upon either which OS 359 * should make the "ptem" (or "ldterm" depending upon either which OS
273 * version or which set of manual pages you have) module give us a 360 * version or which set of manual pages you have) module give us a
274 * controlling terminal. We must already have close ()d the master side 361 * controlling terminal. We must already have close ()d the master side
275 * fd in this child process before we push STREAMS modules on because the 362 * fd in this child process before we push STREAMS modules on because the
276 * documentation is really unclear about whether it is any close () on 363 * documentation is really unclear about whether it is any close () on
277 * the master side or the last close () - i.e. a proper STREAMS dismantling 364 * the master side or the last close () - i.e. a proper STREAMS dismantling
278 * close () - on the master side which causes a hang up to be sent 365 * close () - on the master side which causes a hang up to be sent
279 * through - Geoff Wing 366 * through - Geoff Wing
280 */ 367 */
281# ifdef HAVE_ISASTREAM 368#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
282 if (isastream (fd_tty) == 1) 369 if (isastream (tty) == 1)
283# endif 370# endif
284 { 371 {
285 ioctl (fd_tty, I_PUSH, "ptem"); 372 ioctl (tty, I_PUSH, "ptem");
286 ioctl (fd_tty, I_PUSH, "ldterm"); 373 ioctl (tty, I_PUSH, "ldterm");
287 ioctl (fd_tty, I_PUSH, "ttcompat"); 374 ioctl (tty, I_PUSH, "ttcompat");
288 } 375 }
289#endif 376#endif
290 /* ---------------------------------------- */ 377
291# if defined(TIOCSCTTY) 378#if UTMP_SUPPORT
292 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 379# if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
293# elif defined(TIOCSETCTTY) 380 int fd_stdin = dup (STDIN_FILENO);
294 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 381 dup2 (tty, STDIN_FILENO);
295# else 382
296 fd = open (ttydev, O_RDWR); 383 utmp_pos = ttyslot ();
297 if (fd >= 0) 384
385 dup2 (fd_stdin, STDIN_FILENO);
298 close (fd); 386 close (fd_stdin);
299# endif 387# endif
300 /* ---------------------------------------- */
301 fd = open ("/dev/tty", O_WRONLY);
302 if (fd < 0)
303 return -1; /* fatal */
304 close (fd);
305 /* ---------------------------------------- */
306#endif /* ! __QNX__ */
307
308 return 0;
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 388#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 }
445 389
446 return true; 390 return true;
447} 391}
448 392
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
476/*----------------------- end-of-file (C source) -----------------------*/
477

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