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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.27 by root, Tue Jan 3 16:32:33 2006 UTC vs.
Revision 1.39 by root, Tue Jan 17 12:22:59 2006 UTC

… …
2 * File: ptytty.C 2 * File: ptytty.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * 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> 7 * Copyright (c) 2004-2006 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.
… …
22 *---------------------------------------------------------------------*/ 22 *---------------------------------------------------------------------*/
23 23
24#include "../config.h" /* NECESSARY */ 24#include "../config.h" /* NECESSARY */
25#include "rxvt.h" 25#include "rxvt.h"
26 26
27#ifdef HAVE_STDLIB_H
28# include <cstdlib> 27# include <cstdlib>
29#endif 28# include <cstring>
29
30#ifdef HAVE_SYS_TYPES_H 30#ifdef HAVE_SYS_TYPES_H
31# include <sys/types.h> 31# include <sys/types.h>
32#endif 32#endif
33#ifdef HAVE_UNISTD_H 33#ifdef HAVE_UNISTD_H
34# include <unistd.h> 34# include <unistd.h>
35#endif 35#endif
36#if defined(HAVE_STRING_H)
37# include <cstring>
38#endif
39#ifdef HAVE_FCNTL_H 36#ifdef HAVE_FCNTL_H
40# include <fcntl.h> 37# include <fcntl.h>
41#endif 38#endif
42#ifdef HAVE_SYS_IOCTL_H 39#ifdef HAVE_SYS_IOCTL_H
43# include <sys/ioctl.h> 40# include <sys/ioctl.h>
… …
46# include <sys/stropts.h> /* for I_PUSH */ 43# include <sys/stropts.h> /* for I_PUSH */
47#endif 44#endif
48#ifdef HAVE_ISASTREAM 45#ifdef HAVE_ISASTREAM
49# include <stropts.h> 46# include <stropts.h>
50#endif 47#endif
51#ifdef HAVE_PTY_H 48#if defined(HAVE_PTY_H)
52# include <pty.h> 49# include <pty.h>
53#endif 50#elif defined(HAVE_LIBUTIL_H)
54
55// better do this via configure, but....
56#if defined(__FreeBSD__)
57# include <libutil.h> 51# include <libutil.h>
58#elif defined(__DARWIN__) || (defined (__MACH__) && defined (__APPLE__)) 52#elif defined(HAVE_UTIL_H)
59# include <util.h> 53# include <util.h>
60#endif 54#endif
61 55
62#include <cstdio> 56#include <cstdio>
63#include <grp.h> 57#include <grp.h>
58
59#include "ptytty.h"
60
61/////////////////////////////////////////////////////////////////////////////
64 62
65/* ------------------------------------------------------------------------- * 63/* ------------------------------------------------------------------------- *
66 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 64 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
67 * ------------------------------------------------------------------------- */ 65 * ------------------------------------------------------------------------- */
68/* 66/*
… …
93 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 91 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
94 if (*ttydev != NULL) 92 if (*ttydev != NULL)
95 return pfd; 93 return pfd;
96#endif 94#endif
97 95
98#ifdef PTYS_ARE_GETPTY
99 char *ptydev;
100
101 while ((ptydev = getpty ()) != NULL)
102 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
103 {
104 *ttydev = ptydev;
105 return pfd;
106 }
107#endif
108
109#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 96#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
110# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) 97# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX)
111 98
112 { 99 {
113# ifdef PTYS_ARE_GETPT 100# ifdef PTYS_ARE_GETPT
114 pfd = getpt (); 101 pfd = getpt();
102# else
103# ifdef PTYS_ARE_POSIX
104 pfd = posix_openpt (O_RDWR);
115# else 105# else
116 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); 106 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
107# endif
117# endif 108# endif
118 109
119 if (pfd >= 0) 110 if (pfd >= 0)
120 { 111 {
121 if (grantpt (pfd) == 0 /* change slave permissions */ 112 if (grantpt (pfd) == 0 /* change slave permissions */
… …
231/*----------------------------------------------------------------------*/ 222/*----------------------------------------------------------------------*/
232/* 223/*
233 * 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
234 */ 225 */
235static int 226static int
236control_tty (int fd_tty, const char *ttydev) 227control_tty (int fd_tty)
237{ 228{
238#ifndef __QNX__
239 int fd; 229 int fd;
240 230
241 /* ---------------------------------------- */ 231 /* ---------------------------------------- */
242# ifdef HAVE_SETSID
243 setsid (); 232 setsid ();
244# endif
245# if defined(HAVE_SETPGID)
246 setpgid (0, 0);
247# elif defined(HAVE_SETPGRP)
248 setpgrp (0, 0);
249# endif
250 233
251 /* ---------------------------------------- */ 234 /* ---------------------------------------- */
252# ifdef TIOCNOTTY
253 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
254 if (fd >= 0)
255 {
256 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
257 close (fd);
258 }
259# endif
260
261 /* ---------------------------------------- */
262 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
263 if (fd >= 0)
264 close (fd); /* ouch: still have controlling tty */
265
266 /* ---------------------------------------- */
267#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 235# if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
268 /* 236 /*
269 * Push STREAMS modules: 237 * Push STREAMS modules:
270 * ptem: pseudo-terminal hardware emulation module. 238 * ptem: pseudo-terminal hardware emulation module.
271 * ldterm: standard terminal line discipline. 239 * ldterm: standard terminal line discipline.
272 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 240 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
280 * documentation is really unclear about whether it is any close () on 248 * documentation is really unclear about whether it is any close () on
281 * 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
282 * 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
283 * through - Geoff Wing 251 * through - Geoff Wing
284 */ 252 */
285# ifdef HAVE_ISASTREAM 253# ifdef HAVE_ISASTREAM
286 if (isastream (fd_tty) == 1) 254 if (isastream (fd_tty) == 1)
287# endif 255# endif
288 { 256 {
289 ioctl (fd_tty, I_PUSH, "ptem"); 257 ioctl (fd_tty, I_PUSH, "ptem");
290 ioctl (fd_tty, I_PUSH, "ldterm"); 258 ioctl (fd_tty, I_PUSH, "ldterm");
291 ioctl (fd_tty, I_PUSH, "ttcompat"); 259 ioctl (fd_tty, I_PUSH, "ttcompat");
292 } 260 }
293#endif 261# endif
294 /* ---------------------------------------- */ 262 /* ---------------------------------------- */
295# if defined(TIOCSCTTY)
296 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 263 fd = ioctl (fd_tty, TIOCSCTTY, NULL);
297# elif defined(TIOCSETCTTY)
298 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
299# else
300 fd = open (ttydev, O_RDWR);
301 if (fd >= 0)
302 close (fd);
303# endif
304 /* ---------------------------------------- */ 264 /* ---------------------------------------- */
305 fd = open ("/dev/tty", O_WRONLY); 265 fd = open ("/dev/tty", O_WRONLY);
306 if (fd < 0) 266 if (fd < 0)
307 return -1; /* fatal */ 267 return -1; /* fatal */
308 close (fd); 268 close (fd);
309 /* ---------------------------------------- */ 269 /* ---------------------------------------- */
310#endif /* ! __QNX__ */
311 270
312 return 0; 271 return 0;
313} 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/////////////////////////////////////////////////////////////////////////////
314 318
315#ifndef NO_SETOWNER_TTYDEV 319#ifndef NO_SETOWNER_TTYDEV
316static struct ttyconf { 320static struct ttyconf {
317 gid_t gid; 321 gid_t gid;
318 mode_t mode; 322 mode_t mode;
… …
334 gid = getgid (); 338 gid = getgid ();
335 } 339 }
336 } 340 }
337} ttyconf; 341} ttyconf;
338 342
343/////////////////////////////////////////////////////////////////////////////
344
339void 345void
340rxvt_ptytty::privileges (rxvt_privaction action) 346rxvt_ptytty_unix::privileges (rxvt_privaction action)
341{ 347{
342 if (!name || !*name) 348 if (!name || !*name)
343 return; 349 return;
344 350
345 rxvt_privileges (RESTORE); 351 rxvt_privileges (RESTORE);
… …
378 384
379 rxvt_privileges (IGNORE); 385 rxvt_privileges (IGNORE);
380} 386}
381#endif 387#endif
382 388
383rxvt_ptytty::rxvt_ptytty () 389rxvt_ptytty_unix::rxvt_ptytty_unix ()
384{ 390{
385 pty = tty = -1; 391 pty = tty = -1;
386 name = 0; 392 name = 0;
387#ifndef NO_SETOWNER_TTYDEV 393#ifndef NO_SETOWNER_TTYDEV
388 saved = false; 394 saved = false;
389#endif 395#endif
396#if UTMP_SUPPORT
397 cmd_pid = 0;
398#endif
390} 399}
391 400
392rxvt_ptytty::~rxvt_ptytty () 401rxvt_ptytty_unix::~rxvt_ptytty_unix ()
393{ 402{
403 logout ();
394 put (); 404 put ();
395} 405}
396 406
397void 407void
398
399rxvt_ptytty::close_tty ()
400{
401 if (tty >= 0) close (tty);
402 tty = -1;
403}
404
405void
406rxvt_ptytty::put () 408rxvt_ptytty_unix::put ()
407{ 409{
408#ifndef NO_SETOWNER_TTYDEV 410#ifndef NO_SETOWNER_TTYDEV
409 if (tty >= 0)
410 privileges (RESTORE); 411 privileges (RESTORE);
411#endif 412#endif
412 413
413 if (pty >= 0) close (pty); 414 if (pty >= 0) close (pty);
414 close_tty (); 415 close_tty ();
415 free (name); 416 free (name);
… …
417 pty = tty = -1; 418 pty = tty = -1;
418 name = 0; 419 name = 0;
419} 420}
420 421
421bool 422bool
422rxvt_ptytty::make_controlling_tty ()
423{
424 return control_tty (tty, name) >= 0;
425}
426
427bool
428rxvt_ptytty::get () 423rxvt_ptytty_unix::get ()
429{ 424{
430 /* get master (pty) */ 425 /* get master (pty) */
431 if ((pty = get_pty (&tty, &name)) < 0) 426 if ((pty = get_pty (&tty, &name)) < 0)
432 return false; 427 return false;
433 428
… …
448 } 443 }
449 444
450 return true; 445 return true;
451} 446}
452 447
453void 448// a "factory" *g*
454rxvt_ptytty::set_utf8_mode (bool on) 449rxvt_ptytty *rxvt_new_ptytty ()
455{ 450{
456#ifdef IUTF8 451 return new rxvt_ptytty_unix;
457 if (pty != -1)
458 {
459 struct termios tio;
460
461 if (tcgetattr (pty, &tio) != -1)
462 {
463 tcflag_t new_cflag = tio.c_iflag;
464
465 if (on)
466 new_cflag |= IUTF8;
467 else
468 new_cflag &= ~IUTF8;
469
470 if (new_cflag != tio.c_iflag)
471 {
472 tio.c_iflag = new_cflag;
473 tcsetattr (pty, TCSANOW, &tio);
474 }
475 }
476 }
477#endif
478} 452}
479 453
480/*----------------------- end-of-file (C source) -----------------------*/ 454/*----------------------- end-of-file (C source) -----------------------*/
481 455

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