ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/ptytty.C
(Generate patch)

Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.4 by pcg, Tue Dec 2 21:49:46 2003 UTC vs.
Revision 1.28 by root, Wed Jan 4 03:02:01 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
92 char *ptydev; 99 char *ptydev;
93 100
94 while ((ptydev = getpty()) != NULL) 101 while ((ptydev = getpty ()) != NULL)
95 if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) 102 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
96 { 103 {
97 *ttydev = ptydev; 104 *ttydev = ptydev;
98 return pfd; 105 return pfd;
99 } 106 }
100#endif 107#endif
… …
102#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 109#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
103# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 110# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
104 111
105 { 112 {
106# ifdef PTYS_ARE_GETPT 113# ifdef PTYS_ARE_GETPT
107 pfd = getpt(); 114 pfd = getpt ();
108# else 115# else
109
110 pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 116 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
111# endif 117# endif
112 118
113 if (pfd >= 0) 119 if (pfd >= 0)
114 { 120 {
115 if (grantpt(pfd) == 0 /* change slave permissions */ 121 if (grantpt (pfd) == 0 /* change slave permissions */
116 && unlockpt(pfd) == 0) 122 && unlockpt (pfd) == 0)
117 { /* slave now unlocked */ 123 { /* slave now unlocked */
118 *ttydev = ptsname(pfd); /* get slave's name */ 124 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
119 return pfd; 125 return pfd;
120 } 126 }
121 close(pfd); 127 close (pfd);
122 } 128 }
123 } 129 }
124# endif 130# endif
125#endif 131#endif
126 132
127#ifdef PTYS_ARE_PTC 133#ifdef PTYS_ARE_PTC
128 if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 134 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
129 { 135 {
130 *ttydev = ttyname(pfd); 136 *ttydev = strdup (ttyname (pfd));
131 return pfd; 137 return pfd;
132 } 138 }
133#endif 139#endif
134 140
135#ifdef PTYS_ARE_CLONE 141#ifdef PTYS_ARE_CLONE
136 if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 142 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
137 { 143 {
138 *ttydev = ptsname(pfd); 144 *ttydev = strdup (ptsname (pfd));
139 return pfd; 145 return pfd;
140 } 146 }
141#endif 147#endif
142 148
143#ifdef PTYS_ARE_NUMERIC 149#ifdef PTYS_ARE_NUMERIC
144 { 150 {
145 int idx; 151 int idx;
146 char *c1, *c2; 152 char *c1, *c2;
147 char pty_name[] = "/dev/ptyp???"; 153 char pty_name[] = "/dev/ptyp???";
148 char tty_name[] = "/dev/ttyp???"; 154 char tty_name[] = "/dev/ttyp???";
149 155
150 c1 = &(pty_name[sizeof(pty_name) - 4]); 156 c1 = &(pty_name[sizeof (pty_name) - 4]);
151 c2 = &(tty_name[sizeof(tty_name) - 4]); 157 c2 = &(tty_name[sizeof (tty_name) - 4]);
152 for (idx = 0; idx < 256; idx++) 158 for (idx = 0; idx < 256; idx++)
153 { 159 {
154 sprintf(c1, "%d", idx); 160 sprintf (c1, "%d", idx);
155 sprintf(c2, "%d", idx); 161 sprintf (c2, "%d", idx);
156 if (access(tty_name, F_OK) < 0) 162 if (access (tty_name, F_OK) < 0)
157 { 163 {
158 idx = 256; 164 idx = 256;
159 break; 165 break;
160 } 166 }
167
161 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 168 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
162 { 169 {
163 if (access(tty_name, R_OK | W_OK) == 0) 170 if (access (tty_name, R_OK | W_OK) == 0)
164 { 171 {
165 *ttydev = strdup(tty_name); 172 *ttydev = strdup (tty_name);
166 return pfd; 173 return pfd;
167 } 174 }
175
168 close(pfd); 176 close (pfd);
169 } 177 }
170 } 178 }
171 } 179 }
172#endif 180#endif
181
173#ifdef PTYS_ARE_SEARCHED 182#ifdef PTYS_ARE_SEARCHED
174 { 183 {
175 const char *c1, *c2; 184 const char *c1, *c2;
176 char pty_name[] = "/dev/pty??"; 185 char pty_name[] = "/dev/pty??";
177 char tty_name[] = "/dev/tty??"; 186 char tty_name[] = "/dev/tty??";
178 187
179# ifndef PTYCHAR1 188# ifndef PTYCHAR1
180# define PTYCHAR1 "pqrstuvwxyz" 189# define PTYCHAR1 "pqrstuvwxyz"
181# endif 190# endif
182# ifndef PTYCHAR2 191# ifndef PTYCHAR2
183# define PTYCHAR2 "0123456789abcdef" 192# define PTYCHAR2 "0123456789abcdef"
184# endif 193# endif
185 194
186 for (c1 = PTYCHAR1; *c1; c1++) 195 for (c1 = PTYCHAR1; *c1; c1++)
187 { 196 {
188 pty_name[(sizeof(pty_name) - 3)] = 197 pty_name[ (sizeof (pty_name) - 3)] =
189 tty_name[(sizeof(pty_name) - 3)] = *c1; 198 tty_name[ (sizeof (pty_name) - 3)] = *c1;
190 for (c2 = PTYCHAR2; *c2; c2++) 199 for (c2 = PTYCHAR2; *c2; c2++)
191 { 200 {
192 pty_name[(sizeof(pty_name) - 2)] = 201 pty_name[ (sizeof (pty_name) - 2)] =
193 tty_name[(sizeof(pty_name) - 2)] = *c2; 202 tty_name[ (sizeof (pty_name) - 2)] = *c2;
194 if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 203 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
195 { 204 {
196 if (access(tty_name, R_OK | W_OK) == 0) 205 if (access (tty_name, R_OK | W_OK) == 0)
197 { 206 {
198 *ttydev = strdup(tty_name); 207 *ttydev = strdup (tty_name);
199 return pfd; 208 return pfd;
200 } 209 }
210
201 close(pfd); 211 close (pfd);
202 } 212 }
203 } 213 }
204 } 214 }
205 } 215 }
206#endif 216#endif
217
207 return -1; 218 return -1;
208} 219}
209 220
210/*----------------------------------------------------------------------*/ 221/*----------------------------------------------------------------------*/
211/* 222/*
212 * Returns tty file descriptor, or -1 on failure 223 * Returns tty file descriptor, or -1 on failure
213 */ 224 */
214/* EXTPROTO */ 225static int
215int
216rxvt_get_tty (const char *ttydev) 226get_tty (char *ttydev)
217{ 227{
218 return open (ttydev, O_RDWR | O_NOCTTY, 0); 228 return open (ttydev, O_RDWR | O_NOCTTY, 0);
219} 229}
220 230
221/*----------------------------------------------------------------------*/ 231/*----------------------------------------------------------------------*/
222/* 232/*
223 * Make our tty a controlling tty so that /dev/tty points to us 233 * Make our tty a controlling tty so that /dev/tty points to us
224 */ 234 */
225/* EXTPROTO */ 235static int
226int
227rxvt_control_tty (int fd_tty, const char *ttydev) 236control_tty (int fd_tty, const char *ttydev)
228{ 237{
229#ifndef __QNX__ 238#ifndef __QNX__
230 int fd; 239 int fd;
231 240
232 D_TTY ((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev));
233 /* ---------------------------------------- */ 241 /* ---------------------------------------- */
234# ifdef HAVE_SETSID 242# ifdef HAVE_SETSID
235 setsid (); 243 setsid ();
236# endif 244# endif
237# if defined(HAVE_SETPGID) 245# if defined(HAVE_SETPGID)
238 setpgid (0, 0); 246 setpgid (0, 0);
239# elif defined(HAVE_SETPGRP) 247# elif defined(HAVE_SETPGRP)
240 setpgrp (0, 0); 248 setpgrp (0, 0);
241# endif 249# endif
250
242 /* ---------------------------------------- */ 251 /* ---------------------------------------- */
243# ifdef TIOCNOTTY 252# ifdef TIOCNOTTY
244
245 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 253 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) 254 if (fd >= 0)
248 { 255 {
249 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ 256 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
250 close (fd); 257 close (fd);
251 } 258 }
252# endif 259# endif
260
253 /* ---------------------------------------- */ 261 /* ---------------------------------------- */
254 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 262 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) 263 if (fd >= 0)
257 close (fd); /* ouch: still have controlling tty */ 264 close (fd); /* ouch: still have controlling tty */
265
258 /* ---------------------------------------- */ 266 /* ---------------------------------------- */
259#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 267#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
260 /* 268 /*
261 * Push STREAMS modules: 269 * Push STREAMS modules:
262 * ptem: pseudo-terminal hardware emulation module. 270 * ptem: pseudo-terminal hardware emulation module.
263 * ldterm: standard terminal line discipline. 271 * ldterm: standard terminal line discipline.
264 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 272 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
265 * 273 *
266 * After we push the STREAMS modules, the first open() on the slave side 274 * 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") 275 * (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 276 * 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 277 * 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 278 * 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 279 * 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 280 * 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 281 * 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 282 * close () - on the master side which causes a hang up to be sent
275 * through - Geoff Wing 283 * through - Geoff Wing
276 */ 284 */
277# ifdef HAVE_ISASTREAM 285# ifdef HAVE_ISASTREAM
278 if (isastream (fd_tty) == 1) 286 if (isastream (fd_tty) == 1)
279# endif 287# endif
280 { 288 {
281 D_TTY ((stderr, "rxvt_control_tty(): Pushing STREAMS modules"));
282 ioctl (fd_tty, I_PUSH, "ptem"); 289 ioctl (fd_tty, I_PUSH, "ptem");
283 ioctl (fd_tty, I_PUSH, "ldterm"); 290 ioctl (fd_tty, I_PUSH, "ldterm");
284 ioctl (fd_tty, I_PUSH, "ttcompat"); 291 ioctl (fd_tty, I_PUSH, "ttcompat");
285 } 292 }
286#endif 293#endif
287 /* ---------------------------------------- */ 294 /* ---------------------------------------- */
288# if defined(TIOCSCTTY) 295# if defined(TIOCSCTTY)
289 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 296 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
290 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd));
291# elif defined(TIOCSETCTTY) 297# elif defined(TIOCSETCTTY)
292 fd = ioctl (fd_tty, TIOCSETCTTY, NULL); 298 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
293 D_TTY ((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd));
294# else 299# else
295 fd = open (ttydev, O_RDWR); 300 fd = open (ttydev, O_RDWR);
296 D_TTY ((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK"));
297 if (fd >= 0) 301 if (fd >= 0)
298 close(fd); 302 close (fd);
299# endif 303# endif
300 /* ---------------------------------------- */ 304 /* ---------------------------------------- */
301 fd = open ("/dev/tty", O_WRONLY); 305 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) 306 if (fd < 0)
304 return -1; /* fatal */ 307 return -1; /* fatal */
305 close (fd); 308 close (fd);
306 /* ---------------------------------------- */ 309 /* ---------------------------------------- */
307 D_TTY ((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp()));
308 /* ---------------------------------------- */
309#endif /* ! __QNX__ */ 310#endif /* ! __QNX__ */
310 311
311 return 0; 312 return 0;
312} 313}
314
315#ifndef NO_SETOWNER_TTYDEV
316static struct ttyconf {
317 gid_t gid;
318 mode_t mode;
319
320 ttyconf ()
321 {
322#ifdef TTY_GID_SUPPORT
323 struct group *gr = getgrnam ("tty");
324
325 if (gr)
326 { /* change group ownership of tty to "tty" */
327 mode = S_IRUSR | S_IWUSR | S_IWGRP;
328 gid = gr->gr_gid;
329 }
330 else
331#endif /* TTY_GID_SUPPORT */
332 {
333 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
334 gid = getgid ();
335 }
336 }
337} ttyconf;
338
339void
340rxvt_ptytty::privileges (rxvt_privaction action)
341{
342 if (!name || !*name)
343 return;
344
345 rxvt_privileges (RESTORE);
346
347 if (action == SAVE)
348 {
349# ifndef RESET_TTY_TO_COMMON_DEFAULTS
350 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
351 if (lstat (name, &savestat) < 0) /* you lose out */
352 ;
353 else
354# endif
355 {
356 saved = true;
357 chown (name, getuid (), ttyconf.gid); /* fail silently */
358 chmod (name, ttyconf.mode);
359# ifdef HAVE_REVOKE
360 revoke (name);
361# endif
362 }
363 }
364 else
365 { /* action == RESTORE */
366# ifndef RESET_TTY_TO_COMMON_DEFAULTS
367 if (saved)
368 {
369 chmod (name, savestat.st_mode);
370 chown (name, savestat.st_uid, savestat.st_gid);
371 }
372# else
373 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
374 chown (name, 0, 0);
375# endif
376
377 }
378
379 rxvt_privileges (IGNORE);
380}
381#endif
382
383rxvt_ptytty::rxvt_ptytty ()
384{
385 pty = tty = -1;
386 name = 0;
387#ifndef NO_SETOWNER_TTYDEV
388 saved = false;
389#endif
390}
391
392rxvt_ptytty::~rxvt_ptytty ()
393{
394 put ();
395}
396
397void
398
399rxvt_ptytty::close_tty ()
400{
401 if (tty >= 0) close (tty);
402 tty = -1;
403}
404
405void
406rxvt_ptytty::put ()
407{
408#ifndef NO_SETOWNER_TTYDEV
409 privileges (RESTORE);
410#endif
411
412 if (pty >= 0) close (pty);
413 close_tty ();
414 free (name);
415
416 pty = tty = -1;
417 name = 0;
418}
419
420bool
421rxvt_ptytty::make_controlling_tty ()
422{
423 return control_tty (tty, name) >= 0;
424}
425
426bool
427rxvt_ptytty::get ()
428{
429 /* get master (pty) */
430 if ((pty = get_pty (&tty, &name)) < 0)
431 return false;
432
433 fcntl (pty, F_SETFL, O_NONBLOCK);
434
435 /* get slave (tty) */
436 if (tty < 0)
437 {
438#ifndef NO_SETOWNER_TTYDEV
439 privileges (SAVE);
440#endif
441
442 if ((tty = get_tty (name)) < 0)
443 {
444 put ();
445 return false;
446 }
447 }
448
449 return true;
450}
451
452void
453rxvt_ptytty::set_utf8_mode (bool on)
454{
455#ifdef IUTF8
456 if (pty != -1)
457 {
458 struct termios tio;
459
460 if (tcgetattr (pty, &tio) != -1)
461 {
462 tcflag_t new_cflag = tio.c_iflag;
463
464 if (on)
465 new_cflag |= IUTF8;
466 else
467 new_cflag &= ~IUTF8;
468
469 if (new_cflag != tio.c_iflag)
470 {
471 tio.c_iflag = new_cflag;
472 tcsetattr (pty, TCSANOW, &tio);
473 }
474 }
475 }
476#endif
477}
478
313/*----------------------- end-of-file (C source) -----------------------*/ 479/*----------------------- end-of-file (C source) -----------------------*/
480

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines