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 1.39 by root, Tue Jan 17 12:22:59 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#include "ptytty.h"
60
61/////////////////////////////////////////////////////////////////////////////
62
59/* ------------------------------------------------------------------------- * 63/* ------------------------------------------------------------------------- *
60 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 64 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
61 * ------------------------------------------------------------------------- */ 65 * ------------------------------------------------------------------------- */
62/* 66/*
63 * Returns pty file descriptor, or -1 on failure 67 * Returns pty file descriptor, or -1 on failure
… …
218/*----------------------------------------------------------------------*/ 222/*----------------------------------------------------------------------*/
219/* 223/*
220 * Make our tty a controlling tty so that /dev/tty points to us 224 * Make our tty a controlling tty so that /dev/tty points to us
221 */ 225 */
222static int 226static int
223control_tty (int fd_tty, const char *ttydev) 227control_tty (int fd_tty)
224{ 228{
225#ifndef __QNX__
226 int fd; 229 int fd;
227 230
228 /* ---------------------------------------- */ 231 /* ---------------------------------------- */
229# ifdef HAVE_SETSID
230 setsid (); 232 setsid ();
231# endif
232# if defined(HAVE_SETPGID)
233 setpgid (0, 0);
234# elif defined(HAVE_SETPGRP)
235 setpgrp (0, 0);
236# endif
237 233
238 /* ---------------------------------------- */ 234 /* ---------------------------------------- */
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) 235# if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
255 /* 236 /*
256 * Push STREAMS modules: 237 * Push STREAMS modules:
257 * ptem: pseudo-terminal hardware emulation module. 238 * ptem: pseudo-terminal hardware emulation module.
258 * ldterm: standard terminal line discipline. 239 * ldterm: standard terminal line discipline.
259 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 240 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
267 * documentation is really unclear about whether it is any close () on 248 * 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 249 * 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 250 * close () - on the master side which causes a hang up to be sent
270 * through - Geoff Wing 251 * through - Geoff Wing
271 */ 252 */
272# ifdef HAVE_ISASTREAM 253# ifdef HAVE_ISASTREAM
273 if (isastream (fd_tty) == 1) 254 if (isastream (fd_tty) == 1)
274# endif 255# endif
275 { 256 {
276 ioctl (fd_tty, I_PUSH, "ptem"); 257 ioctl (fd_tty, I_PUSH, "ptem");
277 ioctl (fd_tty, I_PUSH, "ldterm"); 258 ioctl (fd_tty, I_PUSH, "ldterm");
278 ioctl (fd_tty, I_PUSH, "ttcompat"); 259 ioctl (fd_tty, I_PUSH, "ttcompat");
279 } 260 }
280#endif 261# endif
281 /* ---------------------------------------- */ 262 /* ---------------------------------------- */
282# if defined(TIOCSCTTY)
283 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 263 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 /* ---------------------------------------- */ 264 /* ---------------------------------------- */
292 fd = open ("/dev/tty", O_WRONLY); 265 fd = open ("/dev/tty", O_WRONLY);
293 if (fd < 0) 266 if (fd < 0)
294 return -1; /* fatal */ 267 return -1; /* fatal */
295 close (fd); 268 close (fd);
296 /* ---------------------------------------- */ 269 /* ---------------------------------------- */
297#endif /* ! __QNX__ */
298 270
299 return 0; 271 return 0;
300} 272}
273
274void
275rxvt_ptytty::close_tty ()
276{
277 if (tty < 0)
278 return;
279
280 close (tty);
281 tty = -1;
282}
283
284bool
285rxvt_ptytty::make_controlling_tty ()
286{
287 return control_tty (tty) >= 0;
288}
289
290void
291rxvt_ptytty::set_utf8_mode (bool on)
292{
293#ifdef IUTF8
294 if (pty < 0)
295 return;
296
297 struct termios tio;
298
299 if (tcgetattr (pty, &tio) != -1)
300 {
301 tcflag_t new_cflag = tio.c_iflag;
302
303 if (on)
304 new_cflag |= IUTF8;
305 else
306 new_cflag &= ~IUTF8;
307
308 if (new_cflag != tio.c_iflag)
309 {
310 tio.c_iflag = new_cflag;
311 tcsetattr (pty, TCSANOW, &tio);
312 }
313 }
314#endif
315}
316
317/////////////////////////////////////////////////////////////////////////////
301 318
302#ifndef NO_SETOWNER_TTYDEV 319#ifndef NO_SETOWNER_TTYDEV
303static struct ttyconf { 320static struct ttyconf {
304 gid_t gid; 321 gid_t gid;
305 mode_t mode; 322 mode_t mode;
… …
321 gid = getgid (); 338 gid = getgid ();
322 } 339 }
323 } 340 }
324} ttyconf; 341} ttyconf;
325 342
343/////////////////////////////////////////////////////////////////////////////
344
326void 345void
327rxvt_ptytty::privileges (rxvt_privaction action) 346rxvt_ptytty_unix::privileges (rxvt_privaction action)
328{ 347{
329 if (!name || !*name) 348 if (!name || !*name)
330 return; 349 return;
331 350
332 rxvt_privileges (RESTORE); 351 rxvt_privileges (RESTORE);
… …
365 384
366 rxvt_privileges (IGNORE); 385 rxvt_privileges (IGNORE);
367} 386}
368#endif 387#endif
369 388
370rxvt_ptytty::rxvt_ptytty () 389rxvt_ptytty_unix::rxvt_ptytty_unix ()
371{ 390{
372 pty = tty = -1; 391 pty = tty = -1;
373 name = 0; 392 name = 0;
374#ifndef NO_SETOWNER_TTYDEV 393#ifndef NO_SETOWNER_TTYDEV
375 saved = false; 394 saved = false;
… …
377#if UTMP_SUPPORT 396#if UTMP_SUPPORT
378 cmd_pid = 0; 397 cmd_pid = 0;
379#endif 398#endif
380} 399}
381 400
382rxvt_ptytty::~rxvt_ptytty () 401rxvt_ptytty_unix::~rxvt_ptytty_unix ()
383{ 402{
384 logout (); 403 logout ();
385 put (); 404 put ();
386} 405}
387 406
388void 407void
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 () 408rxvt_ptytty_unix::put ()
401{ 409{
402#ifndef NO_SETOWNER_TTYDEV 410#ifndef NO_SETOWNER_TTYDEV
403 privileges (RESTORE); 411 privileges (RESTORE);
404#endif 412#endif
405 413
… …
410 pty = tty = -1; 418 pty = tty = -1;
411 name = 0; 419 name = 0;
412} 420}
413 421
414bool 422bool
415rxvt_ptytty::make_controlling_tty ()
416{
417 return control_tty (tty, name) >= 0;
418}
419
420bool
421rxvt_ptytty::get () 423rxvt_ptytty_unix::get ()
422{ 424{
423 /* get master (pty) */ 425 /* get master (pty) */
424 if ((pty = get_pty (&tty, &name)) < 0) 426 if ((pty = get_pty (&tty, &name)) < 0)
425 return false; 427 return false;
426 428
… …
441 } 443 }
442 444
443 return true; 445 return true;
444} 446}
445 447
446void 448// a "factory" *g*
447rxvt_ptytty::set_utf8_mode (bool on) 449rxvt_ptytty *rxvt_new_ptytty ()
448{ 450{
449#ifdef IUTF8 451 return new rxvt_ptytty_unix;
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} 452}
472 453
473/*----------------------- end-of-file (C source) -----------------------*/ 454/*----------------------- end-of-file (C source) -----------------------*/
474 455

Diff Legend

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