… | |
… | |
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 | # include <cstdlib> |
27 | #include <cstdlib> |
28 | # include <cstring> |
28 | #include <cstring> |
29 | |
29 | |
30 | #ifdef HAVE_SYS_TYPES_H |
|
|
31 | # include <sys/types.h> |
30 | #include <sys/types.h> |
32 | #endif |
31 | #include <sys/socket.h> |
33 | #ifdef HAVE_UNISTD_H |
|
|
34 | # include <unistd.h> |
32 | #include <unistd.h> |
35 | #endif |
|
|
36 | #ifdef HAVE_FCNTL_H |
|
|
37 | # include <fcntl.h> |
33 | #include <fcntl.h> |
38 | #endif |
34 | |
39 | #ifdef HAVE_SYS_IOCTL_H |
35 | #ifdef HAVE_SYS_IOCTL_H |
40 | # include <sys/ioctl.h> |
36 | # include <sys/ioctl.h> |
41 | #endif |
37 | #endif |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
38 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
39 | # include <sys/stropts.h> /* for I_PUSH */ |
… | |
… | |
53 | # include <util.h> |
49 | # include <util.h> |
54 | #endif |
50 | #endif |
55 | |
51 | |
56 | #include <cstdio> |
52 | #include <cstdio> |
57 | #include <grp.h> |
53 | #include <grp.h> |
|
|
54 | |
|
|
55 | #include "rxvtutil.h" |
|
|
56 | #include "fdpass.h" |
|
|
57 | #include "ptytty.h" |
|
|
58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
58 | |
60 | |
59 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
61 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
62 | /* |
64 | /* |
… | |
… | |
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 | */ |
229 | static int |
224 | static int |
230 | control_tty (int fd_tty, const char *ttydev) |
225 | control_tty (int fd_tty) |
231 | { |
226 | { |
232 | #ifndef __QNX__ |
|
|
233 | int fd; |
227 | int fd; |
234 | |
228 | |
235 | /* ---------------------------------------- */ |
229 | /* ---------------------------------------- */ |
236 | # ifdef HAVE_SETSID |
|
|
237 | setsid (); |
230 | setsid (); |
238 | # endif |
|
|
239 | # if defined(HAVE_SETPGID) |
|
|
240 | setpgid (0, 0); |
|
|
241 | # elif defined(HAVE_SETPGRP) |
|
|
242 | setpgrp (0, 0); |
|
|
243 | # endif |
|
|
244 | |
231 | |
245 | /* ---------------------------------------- */ |
232 | /* ---------------------------------------- */ |
246 | # ifdef TIOCNOTTY |
|
|
247 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
248 | if (fd >= 0) |
|
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249 | { |
|
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250 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
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251 | close (fd); |
|
|
252 | } |
|
|
253 | # endif |
|
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254 | |
|
|
255 | /* ---------------------------------------- */ |
|
|
256 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
257 | if (fd >= 0) |
|
|
258 | close (fd); /* ouch: still have controlling tty */ |
|
|
259 | |
|
|
260 | /* ---------------------------------------- */ |
|
|
261 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
233 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
262 | /* |
234 | /* |
263 | * Push STREAMS modules: |
235 | * Push STREAMS modules: |
264 | * ptem: pseudo-terminal hardware emulation module. |
236 | * ptem: pseudo-terminal hardware emulation module. |
265 | * ldterm: standard terminal line discipline. |
237 | * ldterm: standard terminal line discipline. |
266 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
238 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
274 | * documentation is really unclear about whether it is any close () on |
246 | * 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 |
247 | * 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 |
248 | * close () - on the master side which causes a hang up to be sent |
277 | * through - Geoff Wing |
249 | * through - Geoff Wing |
278 | */ |
250 | */ |
279 | # ifdef HAVE_ISASTREAM |
251 | # ifdef HAVE_ISASTREAM |
280 | if (isastream (fd_tty) == 1) |
252 | if (isastream (fd_tty) == 1) |
281 | # endif |
253 | # endif |
282 | { |
254 | { |
283 | ioctl (fd_tty, I_PUSH, "ptem"); |
255 | ioctl (fd_tty, I_PUSH, "ptem"); |
284 | ioctl (fd_tty, I_PUSH, "ldterm"); |
256 | ioctl (fd_tty, I_PUSH, "ldterm"); |
285 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
257 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
286 | } |
258 | } |
287 | #endif |
259 | # endif |
288 | /* ---------------------------------------- */ |
260 | /* ---------------------------------------- */ |
289 | # if defined(TIOCSCTTY) |
|
|
290 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
261 | 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 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
299 | fd = open ("/dev/tty", O_WRONLY); |
263 | fd = open ("/dev/tty", O_WRONLY); |
300 | if (fd < 0) |
264 | if (fd < 0) |
301 | return -1; /* fatal */ |
265 | return -1; /* fatal */ |
302 | close (fd); |
266 | close (fd); |
303 | /* ---------------------------------------- */ |
267 | /* ---------------------------------------- */ |
304 | #endif /* ! __QNX__ */ |
|
|
305 | |
268 | |
306 | return 0; |
269 | return 0; |
307 | } |
270 | } |
|
|
271 | |
|
|
272 | void |
|
|
273 | rxvt_ptytty::close_tty () |
|
|
274 | { |
|
|
275 | if (tty < 0) |
|
|
276 | return; |
|
|
277 | |
|
|
278 | close (tty); |
|
|
279 | tty = -1; |
|
|
280 | } |
|
|
281 | |
|
|
282 | bool |
|
|
283 | rxvt_ptytty::make_controlling_tty () |
|
|
284 | { |
|
|
285 | return control_tty (tty) >= 0; |
|
|
286 | } |
|
|
287 | |
|
|
288 | void |
|
|
289 | rxvt_ptytty::set_utf8_mode (bool on) |
|
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290 | { |
|
|
291 | #ifdef IUTF8 |
|
|
292 | if (pty < 0) |
|
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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; |
|
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309 | tcsetattr (pty, TCSANOW, &tio); |
|
|
310 | } |
|
|
311 | } |
|
|
312 | #endif |
|
|
313 | } |
|
|
314 | |
|
|
315 | ///////////////////////////////////////////////////////////////////////////// |
308 | |
316 | |
309 | #ifndef NO_SETOWNER_TTYDEV |
317 | #ifndef NO_SETOWNER_TTYDEV |
310 | static struct ttyconf { |
318 | static struct ttyconf { |
311 | gid_t gid; |
319 | gid_t gid; |
312 | mode_t mode; |
320 | mode_t mode; |
… | |
… | |
328 | gid = getgid (); |
336 | gid = getgid (); |
329 | } |
337 | } |
330 | } |
338 | } |
331 | } ttyconf; |
339 | } ttyconf; |
332 | |
340 | |
|
|
341 | ///////////////////////////////////////////////////////////////////////////// |
|
|
342 | |
333 | void |
343 | void |
334 | rxvt_ptytty::privileges (rxvt_privaction action) |
344 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
335 | { |
345 | { |
336 | if (!name || !*name) |
346 | if (!name || !*name) |
337 | return; |
347 | return; |
338 | |
348 | |
339 | rxvt_privileges (RESTORE); |
349 | rxvt_privileges (RESTORE); |
… | |
… | |
372 | |
382 | |
373 | rxvt_privileges (IGNORE); |
383 | rxvt_privileges (IGNORE); |
374 | } |
384 | } |
375 | #endif |
385 | #endif |
376 | |
386 | |
377 | rxvt_ptytty::rxvt_ptytty () |
387 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
378 | { |
388 | { |
379 | pty = tty = -1; |
389 | pty = tty = -1; |
380 | name = 0; |
390 | name = 0; |
381 | #ifndef NO_SETOWNER_TTYDEV |
391 | #ifndef NO_SETOWNER_TTYDEV |
382 | saved = false; |
392 | saved = false; |
383 | #endif |
393 | #endif |
|
|
394 | #if UTMP_SUPPORT |
|
|
395 | cmd_pid = 0; |
|
|
396 | #endif |
384 | } |
397 | } |
385 | |
398 | |
386 | rxvt_ptytty::~rxvt_ptytty () |
399 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
387 | { |
400 | { |
|
|
401 | logout (); |
388 | put (); |
402 | put (); |
389 | } |
403 | } |
390 | |
404 | |
391 | void |
405 | void |
392 | |
|
|
393 | rxvt_ptytty::close_tty () |
|
|
394 | { |
|
|
395 | if (tty < 0) |
|
|
396 | return; |
|
|
397 | |
|
|
398 | close (tty); |
|
|
399 | tty = -1; |
|
|
400 | } |
|
|
401 | |
|
|
402 | void |
|
|
403 | rxvt_ptytty::put () |
406 | rxvt_ptytty_unix::put () |
404 | { |
407 | { |
405 | #ifndef NO_SETOWNER_TTYDEV |
408 | #ifndef NO_SETOWNER_TTYDEV |
406 | privileges (RESTORE); |
409 | privileges (RESTORE); |
407 | #endif |
410 | #endif |
408 | |
411 | |
… | |
… | |
413 | pty = tty = -1; |
416 | pty = tty = -1; |
414 | name = 0; |
417 | name = 0; |
415 | } |
418 | } |
416 | |
419 | |
417 | bool |
420 | bool |
418 | rxvt_ptytty::make_controlling_tty () |
|
|
419 | { |
|
|
420 | return control_tty (tty, name) >= 0; |
|
|
421 | } |
|
|
422 | |
|
|
423 | bool |
|
|
424 | rxvt_ptytty::get () |
421 | rxvt_ptytty_unix::get () |
425 | { |
422 | { |
426 | /* get master (pty) */ |
423 | /* get master (pty) */ |
427 | if ((pty = get_pty (&tty, &name)) < 0) |
424 | if ((pty = get_pty (&tty, &name)) < 0) |
428 | return false; |
425 | return false; |
429 | |
426 | |
… | |
… | |
444 | } |
441 | } |
445 | |
442 | |
446 | return true; |
443 | return true; |
447 | } |
444 | } |
448 | |
445 | |
|
|
446 | #if PTYTTY_HELPER |
|
|
447 | |
|
|
448 | static int sock_fd; |
|
|
449 | static int pid; |
|
|
450 | |
|
|
451 | struct command |
|
|
452 | { |
|
|
453 | enum { get, login, destroy } type; |
|
|
454 | |
|
|
455 | rxvt_ptytty *id; |
|
|
456 | |
|
|
457 | bool login_shell; |
|
|
458 | int cmd_pid; |
|
|
459 | char hostname[512]; // arbitrary, but should be plenty |
|
|
460 | }; |
|
|
461 | |
|
|
462 | struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty |
|
|
463 | { |
|
|
464 | rxvt_ptytty *id; |
|
|
465 | |
|
|
466 | rxvt_ptytty_proxy (); |
|
|
467 | ~rxvt_ptytty_proxy (); |
|
|
468 | |
|
|
469 | bool get (); |
|
|
470 | void login (int cmd_pid, bool login_shell, const char *hostname); |
|
|
471 | }; |
|
|
472 | |
|
|
473 | bool |
|
|
474 | rxvt_ptytty_proxy::get () |
|
|
475 | { |
|
|
476 | command cmd; |
|
|
477 | |
|
|
478 | cmd.type = command::get; |
|
|
479 | |
|
|
480 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
481 | |
|
|
482 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
|
|
483 | rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n"); |
|
|
484 | |
|
|
485 | if (!id) |
|
|
486 | return false; |
|
|
487 | |
|
|
488 | if ((pty = rxvt_recv_fd (sock_fd)) < 0 |
|
|
489 | || (tty = rxvt_recv_fd (sock_fd)) < 0) |
|
|
490 | rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
|
|
491 | |
|
|
492 | return true; |
|
|
493 | } |
|
|
494 | |
449 | void |
495 | void |
450 | rxvt_ptytty::set_utf8_mode (bool on) |
496 | rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
451 | { |
497 | { |
452 | #ifdef IUTF8 |
498 | command cmd; |
453 | if (pty < 0) |
|
|
454 | return; |
|
|
455 | |
499 | |
456 | struct termios tio; |
500 | cmd.type = command::login; |
|
|
501 | cmd.id = id; |
|
|
502 | cmd.cmd_pid = cmd_pid; |
|
|
503 | cmd.login_shell = login_shell; |
|
|
504 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
457 | |
505 | |
458 | if (tcgetattr (pty, &tio) != -1) |
506 | write (sock_fd, &cmd, sizeof (cmd)); |
459 | { |
507 | } |
460 | tcflag_t new_cflag = tio.c_iflag; |
|
|
461 | |
508 | |
462 | if (on) |
509 | rxvt_ptytty_proxy::~rxvt_ptytty_proxy () |
463 | new_cflag |= IUTF8; |
510 | { |
|
|
511 | command cmd; |
|
|
512 | |
|
|
513 | cmd.type = command::destroy; |
|
|
514 | cmd.id = id; |
|
|
515 | |
|
|
516 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
517 | } |
|
|
518 | |
|
|
519 | static |
|
|
520 | void serve () |
|
|
521 | { |
|
|
522 | command cmd; |
|
|
523 | vector<rxvt_ptytty *> ptys; |
|
|
524 | |
|
|
525 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
|
|
526 | { |
|
|
527 | if (cmd.type == command::get) |
|
|
528 | { |
|
|
529 | // -> id ptyfd ttyfd |
|
|
530 | cmd.id = new rxvt_ptytty_unix; |
|
|
531 | |
|
|
532 | if (cmd.id->get ()) |
|
|
533 | { |
|
|
534 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
535 | ptys.push_back (cmd.id); |
|
|
536 | |
|
|
537 | rxvt_send_fd (sock_fd, cmd.id->pty); |
|
|
538 | rxvt_send_fd (sock_fd, cmd.id->tty); |
|
|
539 | } |
|
|
540 | else |
|
|
541 | { |
|
|
542 | delete cmd.id; |
|
|
543 | cmd.id = 0; |
|
|
544 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
545 | } |
|
|
546 | } |
|
|
547 | else if (cmd.type == command::login) |
|
|
548 | { |
|
|
549 | if (find (ptys.begin (), ptys.end (), cmd.id)) |
|
|
550 | { |
|
|
551 | cmd.hostname[sizeof (cmd.hostname) - 1] = 0; |
|
|
552 | cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname); |
|
|
553 | } |
|
|
554 | else printf ("xxx hiya login no match %p\n", cmd.id); |
|
|
555 | } |
|
|
556 | else if (cmd.type == command::destroy) |
|
|
557 | { |
|
|
558 | rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
|
|
559 | |
|
|
560 | if (*pty) |
|
|
561 | { |
|
|
562 | ptys.erase (pty); |
|
|
563 | delete *pty; |
|
|
564 | } |
|
|
565 | else printf ("xxx hiya destroy no match %p\n", cmd.id); |
|
|
566 | } |
464 | else |
567 | else |
465 | new_cflag &= ~IUTF8; |
568 | break; |
|
|
569 | } |
466 | |
570 | |
467 | if (new_cflag != tio.c_iflag) |
571 | // destroy all ptys |
468 | { |
572 | for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
469 | tio.c_iflag = new_cflag; |
573 | delete *i; |
470 | tcsetattr (pty, TCSANOW, &tio); |
574 | } |
471 | } |
575 | |
|
|
576 | void rxvt_ptytty_server () |
|
|
577 | { |
|
|
578 | int sv[2]; |
|
|
579 | |
|
|
580 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
|
|
581 | rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
|
|
582 | |
|
|
583 | pid = fork (); |
|
|
584 | |
|
|
585 | if (pid < 0) |
|
|
586 | rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
|
|
587 | |
|
|
588 | if (pid) |
472 | } |
589 | { |
|
|
590 | // client, urxvt |
|
|
591 | sock_fd = sv[0]; |
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592 | close (sv[1]); |
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593 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
|
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594 | } |
|
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595 | else |
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596 | { |
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597 | // server, pty-helper |
|
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598 | sock_fd = sv[1]; |
|
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599 | |
|
|
600 | close (sv[0]);//D |
|
|
601 | // for (int fd = 0; fd < 1023; fd++) |
|
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602 | // if (fd != sock_fd) |
|
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603 | // close (fd); |
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604 | |
|
|
605 | serve (); |
|
|
606 | _exit (EXIT_SUCCESS); |
|
|
607 | } |
|
|
608 | } |
473 | #endif |
609 | #endif |
|
|
610 | |
|
|
611 | // a "factory" *g* |
|
|
612 | rxvt_ptytty * |
|
|
613 | rxvt_new_ptytty () |
|
|
614 | { |
|
|
615 | #if PTYTTY_HELPER |
|
|
616 | if (pid > 0) |
|
|
617 | { |
|
|
618 | // use helper process |
|
|
619 | return new rxvt_ptytty_proxy; |
|
|
620 | } |
|
|
621 | else |
|
|
622 | #endif |
|
|
623 | return new rxvt_ptytty_unix; |
474 | } |
624 | } |
475 | |
625 | |
476 | /*----------------------- end-of-file (C source) -----------------------*/ |
626 | /*----------------------- end-of-file (C source) -----------------------*/ |
477 | |
627 | |