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 1.35 by root, Tue Jan 17 10:19:13 2006 UTC vs.
Revision 1.38 by root, Tue Jan 17 11:53:07 2006 UTC

… …
54#endif 54#endif
55 55
56#include <cstdio> 56#include <cstdio>
57#include <grp.h> 57#include <grp.h>
58 58
59/////////////////////////////////////////////////////////////////////////////
60
59/* ------------------------------------------------------------------------- * 61/* ------------------------------------------------------------------------- *
60 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 62 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
61 * ------------------------------------------------------------------------- */ 63 * ------------------------------------------------------------------------- */
62/* 64/*
63 * Returns pty file descriptor, or -1 on failure 65 * Returns pty file descriptor, or -1 on failure
… …
218/*----------------------------------------------------------------------*/ 220/*----------------------------------------------------------------------*/
219/* 221/*
220 * Make our tty a controlling tty so that /dev/tty points to us 222 * Make our tty a controlling tty so that /dev/tty points to us
221 */ 223 */
222static int 224static int
223control_tty (int fd_tty, const char *ttydev) 225control_tty (int fd_tty)
224{ 226{
225#ifndef __QNX__
226 int fd; 227 int fd;
227 228
228 /* ---------------------------------------- */ 229 /* ---------------------------------------- */
229# ifdef HAVE_SETSID
230 setsid (); 230 setsid ();
231# endif
232# if defined(HAVE_SETPGID)
233 setpgid (0, 0);
234# elif defined(HAVE_SETPGRP)
235 setpgrp (0, 0);
236# endif
237 231
238 /* ---------------------------------------- */ 232 /* ---------------------------------------- */
239# ifdef TIOCNOTTY
240 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
241 if (fd >= 0)
242 {
243 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
244 close (fd);
245 }
246# endif
247
248 /* ---------------------------------------- */
249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
250 if (fd >= 0)
251 close (fd); /* ouch: still have controlling tty */
252
253 /* ---------------------------------------- */
254#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 233# if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
255 /* 234 /*
256 * Push STREAMS modules: 235 * Push STREAMS modules:
257 * ptem: pseudo-terminal hardware emulation module. 236 * ptem: pseudo-terminal hardware emulation module.
258 * ldterm: standard terminal line discipline. 237 * ldterm: standard terminal line discipline.
259 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 238 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
267 * documentation is really unclear about whether it is any close () on 246 * documentation is really unclear about whether it is any close () on
268 * the master side or the last close () - i.e. a proper STREAMS dismantling 247 * the master side or the last close () - i.e. a proper STREAMS dismantling
269 * close () - on the master side which causes a hang up to be sent 248 * close () - on the master side which causes a hang up to be sent
270 * through - Geoff Wing 249 * through - Geoff Wing
271 */ 250 */
272# ifdef HAVE_ISASTREAM 251# ifdef HAVE_ISASTREAM
273 if (isastream (fd_tty) == 1) 252 if (isastream (fd_tty) == 1)
274# endif 253# endif
275 { 254 {
276 ioctl (fd_tty, I_PUSH, "ptem"); 255 ioctl (fd_tty, I_PUSH, "ptem");
277 ioctl (fd_tty, I_PUSH, "ldterm"); 256 ioctl (fd_tty, I_PUSH, "ldterm");
278 ioctl (fd_tty, I_PUSH, "ttcompat"); 257 ioctl (fd_tty, I_PUSH, "ttcompat");
279 } 258 }
280#endif 259# endif
281 /* ---------------------------------------- */ 260 /* ---------------------------------------- */
282# if defined(TIOCSCTTY)
283 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 261 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
284# elif defined(TIOCSETCTTY)
285 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
286# else
287 fd = open (ttydev, O_RDWR);
288 if (fd >= 0)
289 close (fd);
290# endif
291 /* ---------------------------------------- */ 262 /* ---------------------------------------- */
292 fd = open ("/dev/tty", O_WRONLY); 263 fd = open ("/dev/tty", O_WRONLY);
293 if (fd < 0) 264 if (fd < 0)
294 return -1; /* fatal */ 265 return -1; /* fatal */
295 close (fd); 266 close (fd);
296 /* ---------------------------------------- */ 267 /* ---------------------------------------- */
297#endif /* ! __QNX__ */
298 268
299 return 0; 269 return 0;
300} 270}
271
272void
273rxvt_ptytty::close_tty ()
274{
275 if (tty < 0)
276 return;
277
278 close (tty);
279 tty = -1;
280}
281
282bool
283rxvt_ptytty::make_controlling_tty ()
284{
285 return control_tty (tty) >= 0;
286}
287
288void
289rxvt_ptytty::set_utf8_mode (bool on)
290{
291#ifdef IUTF8
292 if (pty < 0)
293 return;
294
295 struct termios tio;
296
297 if (tcgetattr (pty, &tio) != -1)
298 {
299 tcflag_t new_cflag = tio.c_iflag;
300
301 if (on)
302 new_cflag |= IUTF8;
303 else
304 new_cflag &= ~IUTF8;
305
306 if (new_cflag != tio.c_iflag)
307 {
308 tio.c_iflag = new_cflag;
309 tcsetattr (pty, TCSANOW, &tio);
310 }
311 }
312#endif
313}
314
315/////////////////////////////////////////////////////////////////////////////
301 316
302#ifndef NO_SETOWNER_TTYDEV 317#ifndef NO_SETOWNER_TTYDEV
303static struct ttyconf { 318static struct ttyconf {
304 gid_t gid; 319 gid_t gid;
305 mode_t mode; 320 mode_t mode;
… …
321 gid = getgid (); 336 gid = getgid ();
322 } 337 }
323 } 338 }
324} ttyconf; 339} ttyconf;
325 340
341/////////////////////////////////////////////////////////////////////////////
342
326void 343void
327rxvt_ptytty::privileges (rxvt_privaction action) 344rxvt_ptytty_unix::privileges (rxvt_privaction action)
328{ 345{
329 if (!name || !*name) 346 if (!name || !*name)
330 return; 347 return;
331 348
332 rxvt_privileges (RESTORE); 349 rxvt_privileges (RESTORE);
… …
365 382
366 rxvt_privileges (IGNORE); 383 rxvt_privileges (IGNORE);
367} 384}
368#endif 385#endif
369 386
370rxvt_ptytty::rxvt_ptytty () 387rxvt_ptytty_unix::rxvt_ptytty_unix ()
371{ 388{
372 pty = tty = -1; 389 pty = tty = -1;
373 name = 0; 390 name = 0;
374#ifndef NO_SETOWNER_TTYDEV 391#ifndef NO_SETOWNER_TTYDEV
375 saved = false; 392 saved = false;
… …
377#if UTMP_SUPPORT 394#if UTMP_SUPPORT
378 cmd_pid = 0; 395 cmd_pid = 0;
379#endif 396#endif
380} 397}
381 398
382rxvt_ptytty::~rxvt_ptytty () 399rxvt_ptytty_unix::~rxvt_ptytty_unix ()
383{ 400{
384 logout (); 401 logout ();
385 put (); 402 put ();
386} 403}
387 404
388void 405void
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 () 406rxvt_ptytty_unix::put ()
401{ 407{
402#ifndef NO_SETOWNER_TTYDEV 408#ifndef NO_SETOWNER_TTYDEV
403 privileges (RESTORE); 409 privileges (RESTORE);
404#endif 410#endif
405 411
… …
410 pty = tty = -1; 416 pty = tty = -1;
411 name = 0; 417 name = 0;
412} 418}
413 419
414bool 420bool
415rxvt_ptytty::make_controlling_tty ()
416{
417 return control_tty (tty, name) >= 0;
418}
419
420bool
421rxvt_ptytty::get () 421rxvt_ptytty_unix::get ()
422{ 422{
423 /* get master (pty) */ 423 /* get master (pty) */
424 if ((pty = get_pty (&tty, &name)) < 0) 424 if ((pty = get_pty (&tty, &name)) < 0)
425 return false; 425 return false;
426 426
… …
441 } 441 }
442 442
443 return true; 443 return true;
444} 444}
445 445
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
473/*----------------------- end-of-file (C source) -----------------------*/ 446/*----------------------- end-of-file (C source) -----------------------*/
474 447

Diff Legend

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