… | |
… | |
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 | |
48 | #if defined(HAVE_PTY_H) |
52 | #if defined( __FreeBSD__) |
49 | # include <pty.h> |
53 | // better do this via configure, but.... |
50 | #elif defined(HAVE_LIBUTIL_H) |
54 | # include <libutil.h> |
51 | # include <libutil.h> |
|
|
52 | #elif defined(HAVE_UTIL_H) |
|
|
53 | # include <util.h> |
55 | #endif |
54 | #endif |
56 | |
55 | |
57 | #include <cstdio> |
56 | #include <cstdio> |
58 | #include <grp.h> |
57 | #include <grp.h> |
|
|
58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
59 | |
60 | |
60 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
61 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
63 | /* |
64 | /* |
… | |
… | |
71 | int pfd; |
72 | int pfd; |
72 | |
73 | |
73 | #ifdef PTYS_ARE_OPENPTY |
74 | #ifdef PTYS_ARE_OPENPTY |
74 | char tty_name[sizeof "/dev/pts/????\0"]; |
75 | char tty_name[sizeof "/dev/pts/????\0"]; |
75 | |
76 | |
|
|
77 | rxvt_privileges(RESTORE); |
76 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
78 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
|
|
79 | rxvt_privileges(IGNORE); |
|
|
80 | |
|
|
81 | if (res != -1) |
77 | { |
82 | { |
78 | *ttydev = strdup (tty_name); |
83 | *ttydev = strdup (tty_name); |
79 | return pfd; |
84 | return pfd; |
80 | } |
85 | } |
81 | #endif |
86 | #endif |
… | |
… | |
84 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
89 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
85 | if (*ttydev != NULL) |
90 | if (*ttydev != NULL) |
86 | return pfd; |
91 | return pfd; |
87 | #endif |
92 | #endif |
88 | |
93 | |
89 | #ifdef PTYS_ARE_GETPTY |
|
|
90 | |
|
|
91 | char *ptydev; |
|
|
92 | |
|
|
93 | while ((ptydev = getpty ()) != NULL) |
|
|
94 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
95 | { |
|
|
96 | *ttydev = ptydev; |
|
|
97 | return pfd; |
|
|
98 | } |
|
|
99 | #endif |
|
|
100 | |
|
|
101 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
94 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
102 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
95 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
103 | |
96 | |
104 | { |
97 | { |
105 | # ifdef PTYS_ARE_GETPT |
98 | # ifdef PTYS_ARE_GETPT |
106 | pfd = getpt (); |
99 | pfd = getpt(); |
|
|
100 | # else |
|
|
101 | # ifdef PTYS_ARE_POSIX |
|
|
102 | pfd = posix_openpt (O_RDWR); |
107 | # else |
103 | # else |
108 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
104 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
105 | # endif |
109 | # endif |
106 | # endif |
110 | |
107 | |
111 | if (pfd >= 0) |
108 | if (pfd >= 0) |
112 | { |
109 | { |
113 | if (grantpt (pfd) == 0 /* change slave permissions */ |
110 | if (grantpt (pfd) == 0 /* change slave permissions */ |
… | |
… | |
223 | /*----------------------------------------------------------------------*/ |
220 | /*----------------------------------------------------------------------*/ |
224 | /* |
221 | /* |
225 | * 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 |
226 | */ |
223 | */ |
227 | static int |
224 | static int |
228 | control_tty (int fd_tty, const char *ttydev) |
225 | control_tty (int fd_tty) |
229 | { |
226 | { |
230 | #ifndef __QNX__ |
|
|
231 | int fd; |
227 | int fd; |
232 | |
228 | |
233 | /* ---------------------------------------- */ |
229 | /* ---------------------------------------- */ |
234 | # ifdef HAVE_SETSID |
230 | # ifdef HAVE_SETSID |
235 | setsid (); |
231 | setsid (); |
… | |
… | |
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
250 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
255 | if (fd >= 0) |
251 | if (fd >= 0) |
256 | close (fd); /* ouch: still have controlling tty */ |
252 | close (fd); /* ouch: still have controlling tty */ |
257 | |
253 | |
258 | /* ---------------------------------------- */ |
254 | /* ---------------------------------------- */ |
259 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
255 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
260 | /* |
256 | /* |
261 | * Push STREAMS modules: |
257 | * Push STREAMS modules: |
262 | * ptem: pseudo-terminal hardware emulation module. |
258 | * ptem: pseudo-terminal hardware emulation module. |
263 | * ldterm: standard terminal line discipline. |
259 | * ldterm: standard terminal line discipline. |
264 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
260 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
272 | * documentation is really unclear about whether it is any close () on |
268 | * documentation is really unclear about whether it is any close () on |
273 | * 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 |
274 | * 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 |
275 | * through - Geoff Wing |
271 | * through - Geoff Wing |
276 | */ |
272 | */ |
277 | # ifdef HAVE_ISASTREAM |
273 | # ifdef HAVE_ISASTREAM |
278 | if (isastream (fd_tty) == 1) |
274 | if (isastream (fd_tty) == 1) |
279 | # endif |
275 | # endif |
280 | { |
276 | { |
281 | ioctl (fd_tty, I_PUSH, "ptem"); |
277 | ioctl (fd_tty, I_PUSH, "ptem"); |
282 | ioctl (fd_tty, I_PUSH, "ldterm"); |
278 | ioctl (fd_tty, I_PUSH, "ldterm"); |
283 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
279 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
284 | } |
280 | } |
285 | #endif |
281 | # endif |
286 | /* ---------------------------------------- */ |
282 | /* ---------------------------------------- */ |
287 | # if defined(TIOCSCTTY) |
|
|
288 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
283 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
289 | # elif defined(TIOCSETCTTY) |
|
|
290 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
|
|
291 | # else |
|
|
292 | fd = open (ttydev, O_RDWR); |
|
|
293 | if (fd >= 0) |
|
|
294 | close (fd); |
|
|
295 | # endif |
|
|
296 | /* ---------------------------------------- */ |
284 | /* ---------------------------------------- */ |
297 | fd = open ("/dev/tty", O_WRONLY); |
285 | fd = open ("/dev/tty", O_WRONLY); |
298 | if (fd < 0) |
286 | if (fd < 0) |
299 | return -1; /* fatal */ |
287 | return -1; /* fatal */ |
300 | close (fd); |
288 | close (fd); |
301 | /* ---------------------------------------- */ |
289 | /* ---------------------------------------- */ |
302 | #endif /* ! __QNX__ */ |
|
|
303 | |
290 | |
304 | return 0; |
291 | return 0; |
305 | } |
292 | } |
|
|
293 | |
|
|
294 | void |
|
|
295 | rxvt_ptytty::close_tty () |
|
|
296 | { |
|
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297 | if (tty < 0) |
|
|
298 | return; |
|
|
299 | |
|
|
300 | close (tty); |
|
|
301 | tty = -1; |
|
|
302 | } |
|
|
303 | |
|
|
304 | bool |
|
|
305 | rxvt_ptytty::make_controlling_tty () |
|
|
306 | { |
|
|
307 | return control_tty (tty) >= 0; |
|
|
308 | } |
|
|
309 | |
|
|
310 | void |
|
|
311 | rxvt_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 | ///////////////////////////////////////////////////////////////////////////// |
306 | |
338 | |
307 | #ifndef NO_SETOWNER_TTYDEV |
339 | #ifndef NO_SETOWNER_TTYDEV |
308 | static struct ttyconf { |
340 | static struct ttyconf { |
309 | gid_t gid; |
341 | gid_t gid; |
310 | mode_t mode; |
342 | mode_t mode; |
… | |
… | |
326 | gid = getgid (); |
358 | gid = getgid (); |
327 | } |
359 | } |
328 | } |
360 | } |
329 | } ttyconf; |
361 | } ttyconf; |
330 | |
362 | |
|
|
363 | ///////////////////////////////////////////////////////////////////////////// |
|
|
364 | |
331 | void |
365 | void |
332 | rxvt_ptytty::privileges (rxvt_privaction action) |
366 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
333 | { |
367 | { |
|
|
368 | if (!name || !*name) |
|
|
369 | return; |
|
|
370 | |
334 | rxvt_privileges (RESTORE); |
371 | rxvt_privileges (RESTORE); |
335 | |
372 | |
336 | if (action == SAVE) |
373 | if (action == SAVE) |
337 | { |
374 | { |
338 | //next_tty_action = RESTORE; |
|
|
339 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
375 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
340 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
376 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
341 | if (lstat (name, &savestat) < 0) /* you lose out */ |
377 | if (lstat (name, &savestat) < 0) /* you lose out */ |
342 | ;//next_tty_action = IGNORE; |
378 | ; |
343 | else |
379 | else |
344 | # endif |
380 | # endif |
345 | |
|
|
346 | { |
381 | { |
|
|
382 | saved = true; |
347 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
383 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
348 | chmod (name, ttyconf.mode); |
384 | chmod (name, ttyconf.mode); |
349 | # ifdef HAVE_REVOKE |
385 | # ifdef HAVE_REVOKE |
350 | revoke (name); |
386 | revoke (name); |
351 | # endif |
387 | # endif |
352 | |
|
|
353 | } |
388 | } |
354 | } |
389 | } |
355 | else |
390 | else |
356 | { /* action == RESTORE */ |
391 | { /* action == RESTORE */ |
357 | //next_tty_action = IGNORE; |
|
|
358 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
392 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
393 | if (saved) |
|
|
394 | { |
359 | chmod (name, savestat.st_mode); |
395 | chmod (name, savestat.st_mode); |
360 | chown (name, savestat.st_uid, savestat.st_gid); |
396 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
397 | } |
361 | # else |
398 | # else |
362 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
399 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
363 | chown (name, 0, 0); |
400 | chown (name, 0, 0); |
364 | # endif |
401 | # endif |
365 | |
402 | |
… | |
… | |
367 | |
404 | |
368 | rxvt_privileges (IGNORE); |
405 | rxvt_privileges (IGNORE); |
369 | } |
406 | } |
370 | #endif |
407 | #endif |
371 | |
408 | |
372 | rxvt_ptytty::rxvt_ptytty () |
409 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
373 | { |
410 | { |
374 | pty = tty = -1; |
411 | pty = tty = -1; |
375 | name = 0; |
412 | name = 0; |
|
|
413 | #ifndef NO_SETOWNER_TTYDEV |
|
|
414 | saved = false; |
|
|
415 | #endif |
|
|
416 | #if UTMP_SUPPORT |
|
|
417 | cmd_pid = 0; |
|
|
418 | #endif |
376 | } |
419 | } |
377 | |
420 | |
378 | rxvt_ptytty::~rxvt_ptytty () |
421 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
379 | { |
422 | { |
|
|
423 | logout (); |
380 | put (); |
424 | put (); |
381 | } |
425 | } |
382 | |
426 | |
383 | void |
427 | void |
384 | |
|
|
385 | rxvt_ptytty::close_tty () |
|
|
386 | { |
|
|
387 | if (tty >= 0) close (tty); |
|
|
388 | tty = -1; |
|
|
389 | } |
|
|
390 | |
|
|
391 | void |
|
|
392 | rxvt_ptytty::put () |
428 | rxvt_ptytty_unix::put () |
393 | { |
429 | { |
394 | #ifndef NO_SETOWNER_TTYDEV |
430 | #ifndef NO_SETOWNER_TTYDEV |
395 | if (tty >= 0) |
|
|
396 | privileges (RESTORE); |
431 | privileges (RESTORE); |
397 | #endif |
432 | #endif |
398 | |
433 | |
399 | if (pty >= 0) close (pty); |
434 | if (pty >= 0) close (pty); |
400 | close_tty (); |
435 | close_tty (); |
401 | free (name); |
436 | free (name); |
… | |
… | |
403 | pty = tty = -1; |
438 | pty = tty = -1; |
404 | name = 0; |
439 | name = 0; |
405 | } |
440 | } |
406 | |
441 | |
407 | bool |
442 | bool |
408 | rxvt_ptytty::make_controlling_tty () |
|
|
409 | { |
|
|
410 | return control_tty (tty, name) >= 0; |
|
|
411 | } |
|
|
412 | |
|
|
413 | bool |
|
|
414 | rxvt_ptytty::get () |
443 | rxvt_ptytty_unix::get () |
415 | { |
444 | { |
416 | /* get master (pty) */ |
445 | /* get master (pty) */ |
417 | if ((pty = get_pty (&tty, &name)) < 0) |
446 | if ((pty = get_pty (&tty, &name)) < 0) |
418 | return false; |
447 | return false; |
419 | |
448 | |