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/cvs/rxvt-unicode/src/ptytty.C
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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.35 by root, Tue Jan 17 10:19:13 2006 UTC vs.
Revision 1.36 by root, Tue Jan 17 10:59:32 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__ 227#ifndef __QNX__
226 int fd; 228 int fd;
227 229
228 /* ---------------------------------------- */ 230 /* ---------------------------------------- */
… …
249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY); 251 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
250 if (fd >= 0) 252 if (fd >= 0)
251 close (fd); /* ouch: still have controlling tty */ 253 close (fd); /* ouch: still have controlling tty */
252 254
253 /* ---------------------------------------- */ 255 /* ---------------------------------------- */
254#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 256# if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
255 /* 257 /*
256 * Push STREAMS modules: 258 * Push STREAMS modules:
257 * ptem: pseudo-terminal hardware emulation module. 259 * ptem: pseudo-terminal hardware emulation module.
258 * ldterm: standard terminal line discipline. 260 * ldterm: standard terminal line discipline.
259 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 261 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
267 * documentation is really unclear about whether it is any close () on 269 * 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 270 * 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 271 * close () - on the master side which causes a hang up to be sent
270 * through - Geoff Wing 272 * through - Geoff Wing
271 */ 273 */
272# ifdef HAVE_ISASTREAM 274# ifdef HAVE_ISASTREAM
273 if (isastream (fd_tty) == 1) 275 if (isastream (fd_tty) == 1)
274# endif 276# endif
275 { 277 {
276 ioctl (fd_tty, I_PUSH, "ptem"); 278 ioctl (fd_tty, I_PUSH, "ptem");
277 ioctl (fd_tty, I_PUSH, "ldterm"); 279 ioctl (fd_tty, I_PUSH, "ldterm");
278 ioctl (fd_tty, I_PUSH, "ttcompat"); 280 ioctl (fd_tty, I_PUSH, "ttcompat");
279 } 281 }
280#endif 282# endif
281 /* ---------------------------------------- */ 283 /* ---------------------------------------- */
282# if defined(TIOCSCTTY)
283 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 284 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 /* ---------------------------------------- */ 285 /* ---------------------------------------- */
292 fd = open ("/dev/tty", O_WRONLY); 286 fd = open ("/dev/tty", O_WRONLY);
293 if (fd < 0) 287 if (fd < 0)
294 return -1; /* fatal */ 288 return -1; /* fatal */
295 close (fd); 289 close (fd);
296 /* ---------------------------------------- */ 290 /* ---------------------------------------- */
297#endif /* ! __QNX__ */ 291#endif /* ! __QNX__ */
298 292
299 return 0; 293 return 0;
300} 294}
295
296void
297rxvt_ptytty::close_tty ()
298{
299 if (tty < 0)
300 return;
301
302 close (tty);
303 tty = -1;
304}
305
306bool
307rxvt_ptytty::make_controlling_tty ()
308{
309 return control_tty (tty) >= 0;
310}
311
312void
313rxvt_ptytty::set_utf8_mode (bool on)
314{
315#ifdef IUTF8
316 if (pty < 0)
317 return;
318
319 struct termios tio;
320
321 if (tcgetattr (pty, &tio) != -1)
322 {
323 tcflag_t new_cflag = tio.c_iflag;
324
325 if (on)
326 new_cflag |= IUTF8;
327 else
328 new_cflag &= ~IUTF8;
329
330 if (new_cflag != tio.c_iflag)
331 {
332 tio.c_iflag = new_cflag;
333 tcsetattr (pty, TCSANOW, &tio);
334 }
335 }
336#endif
337}
338
339/////////////////////////////////////////////////////////////////////////////
301 340
302#ifndef NO_SETOWNER_TTYDEV 341#ifndef NO_SETOWNER_TTYDEV
303static struct ttyconf { 342static struct ttyconf {
304 gid_t gid; 343 gid_t gid;
305 mode_t mode; 344 mode_t mode;
… …
321 gid = getgid (); 360 gid = getgid ();
322 } 361 }
323 } 362 }
324} ttyconf; 363} ttyconf;
325 364
365/////////////////////////////////////////////////////////////////////////////
366
326void 367void
327rxvt_ptytty::privileges (rxvt_privaction action) 368rxvt_ptytty_unix::privileges (rxvt_privaction action)
328{ 369{
329 if (!name || !*name) 370 if (!name || !*name)
330 return; 371 return;
331 372
332 rxvt_privileges (RESTORE); 373 rxvt_privileges (RESTORE);
… …
365 406
366 rxvt_privileges (IGNORE); 407 rxvt_privileges (IGNORE);
367} 408}
368#endif 409#endif
369 410
370rxvt_ptytty::rxvt_ptytty () 411rxvt_ptytty_unix::rxvt_ptytty_unix ()
371{ 412{
372 pty = tty = -1; 413 pty = tty = -1;
373 name = 0; 414 name = 0;
374#ifndef NO_SETOWNER_TTYDEV 415#ifndef NO_SETOWNER_TTYDEV
375 saved = false; 416 saved = false;
… …
377#if UTMP_SUPPORT 418#if UTMP_SUPPORT
378 cmd_pid = 0; 419 cmd_pid = 0;
379#endif 420#endif
380} 421}
381 422
382rxvt_ptytty::~rxvt_ptytty () 423rxvt_ptytty_unix::~rxvt_ptytty_unix ()
383{ 424{
384 logout (); 425 logout ();
385 put (); 426 put ();
386} 427}
387 428
388void 429void
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 () 430rxvt_ptytty_unix::put ()
401{ 431{
402#ifndef NO_SETOWNER_TTYDEV 432#ifndef NO_SETOWNER_TTYDEV
403 privileges (RESTORE); 433 privileges (RESTORE);
404#endif 434#endif
405 435
… …
410 pty = tty = -1; 440 pty = tty = -1;
411 name = 0; 441 name = 0;
412} 442}
413 443
414bool 444bool
415rxvt_ptytty::make_controlling_tty ()
416{
417 return control_tty (tty, name) >= 0;
418}
419
420bool
421rxvt_ptytty::get () 445rxvt_ptytty_unix::get ()
422{ 446{
423 /* get master (pty) */ 447 /* get master (pty) */
424 if ((pty = get_pty (&tty, &name)) < 0) 448 if ((pty = get_pty (&tty, &name)) < 0)
425 return false; 449 return false;
426 450
… …
441 } 465 }
442 466
443 return true; 467 return true;
444} 468}
445 469
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) -----------------------*/ 470/*----------------------- end-of-file (C source) -----------------------*/
474 471

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