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/cvs/rxvt-unicode/src/ptytty.C
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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.31 by root, Tue Jan 10 18:09:22 2006 UTC vs.
Revision 1.37 by root, Tue Jan 17 11:02:10 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
… …
87 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
88 if (*ttydev != NULL) 90 if (*ttydev != NULL)
89 return pfd; 91 return pfd;
90#endif 92#endif
91 93
92#ifdef PTYS_ARE_GETPTY
93 char *ptydev;
94
95 while ((ptydev = getpty ()) != NULL)
96 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
97 {
98 *ttydev = ptydev;
99 return pfd;
100 }
101#endif
102
103#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 94#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
104# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 95# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX)
105 96
106 { 97 {
107# ifdef PTYS_ARE_GETPT 98# ifdef PTYS_ARE_GETPT
108 pfd = getpt (); 99 pfd = getpt();
100# else
101# ifdef PTYS_ARE_POSIX
102 pfd = posix_openpt (O_RDWR);
109# else 103# else
110 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 104 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
105# endif
111# endif 106# endif
112 107
113 if (pfd >= 0) 108 if (pfd >= 0)
114 { 109 {
115 if (grantpt (pfd) == 0 /* change slave permissions */ 110 if (grantpt (pfd) == 0 /* change slave permissions */
… …
225/*----------------------------------------------------------------------*/ 220/*----------------------------------------------------------------------*/
226/* 221/*
227 * 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
228 */ 223 */
229static int 224static int
230control_tty (int fd_tty, const char *ttydev) 225control_tty (int fd_tty)
231{ 226{
232#ifndef __QNX__
233 int fd; 227 int fd;
234 228
235 /* ---------------------------------------- */ 229 /* ---------------------------------------- */
236# ifdef HAVE_SETSID 230# ifdef HAVE_SETSID
237 setsid (); 231 setsid ();
… …
256 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 250 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
257 if (fd >= 0) 251 if (fd >= 0)
258 close (fd); /* ouch: still have controlling tty */ 252 close (fd); /* ouch: still have controlling tty */
259 253
260 /* ---------------------------------------- */ 254 /* ---------------------------------------- */
261#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 255# if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
262 /* 256 /*
263 * Push STREAMS modules: 257 * Push STREAMS modules:
264 * ptem: pseudo-terminal hardware emulation module. 258 * ptem: pseudo-terminal hardware emulation module.
265 * ldterm: standard terminal line discipline. 259 * ldterm: standard terminal line discipline.
266 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 260 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
274 * documentation is really unclear about whether it is any close () on 268 * documentation is really unclear about whether it is any close () on
275 * the master side or the last close () - i.e. a proper STREAMS dismantling 269 * the master side or the last close () - i.e. a proper STREAMS dismantling
276 * close () - on the master side which causes a hang up to be sent 270 * close () - on the master side which causes a hang up to be sent
277 * through - Geoff Wing 271 * through - Geoff Wing
278 */ 272 */
279# ifdef HAVE_ISASTREAM 273# ifdef HAVE_ISASTREAM
280 if (isastream (fd_tty) == 1) 274 if (isastream (fd_tty) == 1)
281# endif 275# endif
282 { 276 {
283 ioctl (fd_tty, I_PUSH, "ptem"); 277 ioctl (fd_tty, I_PUSH, "ptem");
284 ioctl (fd_tty, I_PUSH, "ldterm"); 278 ioctl (fd_tty, I_PUSH, "ldterm");
285 ioctl (fd_tty, I_PUSH, "ttcompat"); 279 ioctl (fd_tty, I_PUSH, "ttcompat");
286 } 280 }
287#endif 281# endif
288 /* ---------------------------------------- */ 282 /* ---------------------------------------- */
289# if defined(TIOCSCTTY)
290 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 283 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
291# elif defined(TIOCSETCTTY)
292 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
293# else
294 fd = open (ttydev, O_RDWR);
295 if (fd >= 0)
296 close (fd);
297# endif
298 /* ---------------------------------------- */ 284 /* ---------------------------------------- */
299 fd = open ("/dev/tty", O_WRONLY); 285 fd = open ("/dev/tty", O_WRONLY);
300 if (fd < 0) 286 if (fd < 0)
301 return -1; /* fatal */ 287 return -1; /* fatal */
302 close (fd); 288 close (fd);
303 /* ---------------------------------------- */ 289 /* ---------------------------------------- */
304#endif /* ! __QNX__ */
305 290
306 return 0; 291 return 0;
307} 292}
293
294void
295rxvt_ptytty::close_tty ()
296{
297 if (tty < 0)
298 return;
299
300 close (tty);
301 tty = -1;
302}
303
304bool
305rxvt_ptytty::make_controlling_tty ()
306{
307 return control_tty (tty) >= 0;
308}
309
310void
311rxvt_ptytty::set_utf8_mode (bool on)
312{
313#ifdef IUTF8
314 if (pty < 0)
315 return;
316
317 struct termios tio;
318
319 if (tcgetattr (pty, &tio) != -1)
320 {
321 tcflag_t new_cflag = tio.c_iflag;
322
323 if (on)
324 new_cflag |= IUTF8;
325 else
326 new_cflag &= ~IUTF8;
327
328 if (new_cflag != tio.c_iflag)
329 {
330 tio.c_iflag = new_cflag;
331 tcsetattr (pty, TCSANOW, &tio);
332 }
333 }
334#endif
335}
336
337/////////////////////////////////////////////////////////////////////////////
308 338
309#ifndef NO_SETOWNER_TTYDEV 339#ifndef NO_SETOWNER_TTYDEV
310static struct ttyconf { 340static struct ttyconf {
311 gid_t gid; 341 gid_t gid;
312 mode_t mode; 342 mode_t mode;
… …
328 gid = getgid (); 358 gid = getgid ();
329 } 359 }
330 } 360 }
331} ttyconf; 361} ttyconf;
332 362
363/////////////////////////////////////////////////////////////////////////////
364
333void 365void
334rxvt_ptytty::privileges (rxvt_privaction action) 366rxvt_ptytty_unix::privileges (rxvt_privaction action)
335{ 367{
336 if (!name || !*name) 368 if (!name || !*name)
337 return; 369 return;
338 370
339 rxvt_privileges (RESTORE); 371 rxvt_privileges (RESTORE);
… …
372 404
373 rxvt_privileges (IGNORE); 405 rxvt_privileges (IGNORE);
374} 406}
375#endif 407#endif
376 408
377rxvt_ptytty::rxvt_ptytty () 409rxvt_ptytty_unix::rxvt_ptytty_unix ()
378{ 410{
379 pty = tty = -1; 411 pty = tty = -1;
380 name = 0; 412 name = 0;
381#ifndef NO_SETOWNER_TTYDEV 413#ifndef NO_SETOWNER_TTYDEV
382 saved = false; 414 saved = false;
383#endif 415#endif
416#if UTMP_SUPPORT
417 cmd_pid = 0;
418#endif
384} 419}
385 420
386rxvt_ptytty::~rxvt_ptytty () 421rxvt_ptytty_unix::~rxvt_ptytty_unix ()
387{ 422{
423 logout ();
388 put (); 424 put ();
389} 425}
390 426
391void 427void
392
393rxvt_ptytty::close_tty ()
394{
395 if (tty < 0)
396 return;
397
398 close (tty);
399 tty = -1;
400}
401
402void
403rxvt_ptytty::put () 428rxvt_ptytty_unix::put ()
404{ 429{
405#ifndef NO_SETOWNER_TTYDEV 430#ifndef NO_SETOWNER_TTYDEV
406 privileges (RESTORE); 431 privileges (RESTORE);
407#endif 432#endif
408 433
… …
413 pty = tty = -1; 438 pty = tty = -1;
414 name = 0; 439 name = 0;
415} 440}
416 441
417bool 442bool
418rxvt_ptytty::make_controlling_tty ()
419{
420 return control_tty (tty, name) >= 0;
421}
422
423bool
424rxvt_ptytty::get () 443rxvt_ptytty_unix::get ()
425{ 444{
426 /* get master (pty) */ 445 /* get master (pty) */
427 if ((pty = get_pty (&tty, &name)) < 0) 446 if ((pty = get_pty (&tty, &name)) < 0)
428 return false; 447 return false;
429 448
… …
444 } 463 }
445 464
446 return true; 465 return true;
447} 466}
448 467
449void
450rxvt_ptytty::set_utf8_mode (bool on)
451{
452#ifdef IUTF8
453 if (pty < 0)
454 return;
455
456 struct termios tio;
457
458 if (tcgetattr (pty, &tio) != -1)
459 {
460 tcflag_t new_cflag = tio.c_iflag;
461
462 if (on)
463 new_cflag |= IUTF8;
464 else
465 new_cflag &= ~IUTF8;
466
467 if (new_cflag != tio.c_iflag)
468 {
469 tio.c_iflag = new_cflag;
470 tcsetattr (pty, TCSANOW, &tio);
471 }
472 }
473#endif
474}
475
476/*----------------------- end-of-file (C source) -----------------------*/ 468/*----------------------- end-of-file (C source) -----------------------*/
477 469

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