… | |
… | |
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 | /* |
… | |
… | |
74 | get_pty (int *fd_tty, char **ttydev) |
72 | get_pty (int *fd_tty, char **ttydev) |
75 | { |
73 | { |
76 | int pfd; |
74 | int pfd; |
77 | |
75 | |
78 | #ifdef PTYS_ARE_OPENPTY |
76 | #ifdef PTYS_ARE_OPENPTY |
79 | char tty_name[sizeof "/dev/pts/?????\0"]; |
77 | char tty_name[sizeof "/dev/pts/????\0"]; |
80 | |
78 | |
81 | rxvt_privileges (RESTORE); |
79 | rxvt_privileges(RESTORE); |
82 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
80 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
83 | rxvt_privileges (IGNORE); |
81 | rxvt_privileges(IGNORE); |
84 | |
82 | |
85 | if (res != -1) |
83 | if (res != -1) |
86 | { |
84 | { |
87 | *ttydev = strdup (tty_name); |
85 | *ttydev = strdup (tty_name); |
88 | return pfd; |
86 | return pfd; |
… | |
… | |
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 | |
|
|
100 | char *ptydev; |
|
|
101 | |
|
|
102 | while ((ptydev = getpty ()) != NULL) |
|
|
103 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
104 | { |
|
|
105 | *ttydev = ptydev; |
|
|
106 | return pfd; |
|
|
107 | } |
|
|
108 | #endif |
|
|
109 | |
|
|
110 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
96 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
111 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
97 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
112 | |
98 | |
113 | { |
99 | { |
114 | # ifdef PTYS_ARE_GETPT |
100 | # ifdef PTYS_ARE_GETPT |
115 | pfd = getpt (); |
101 | pfd = getpt(); |
|
|
102 | # else |
|
|
103 | # ifdef PTYS_ARE_POSIX |
|
|
104 | pfd = posix_openpt (O_RDWR); |
116 | # else |
105 | # else |
117 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
106 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
107 | # endif |
118 | # endif |
108 | # endif |
119 | |
109 | |
120 | if (pfd >= 0) |
110 | if (pfd >= 0) |
121 | { |
111 | { |
122 | if (grantpt (pfd) == 0 /* change slave permissions */ |
112 | if (grantpt (pfd) == 0 /* change slave permissions */ |
… | |
… | |
232 | /*----------------------------------------------------------------------*/ |
222 | /*----------------------------------------------------------------------*/ |
233 | /* |
223 | /* |
234 | * 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 |
235 | */ |
225 | */ |
236 | static int |
226 | static int |
237 | control_tty (int fd_tty, const char *ttydev) |
227 | control_tty (int fd_tty) |
238 | { |
228 | { |
239 | #ifndef __QNX__ |
|
|
240 | int fd; |
229 | int fd; |
241 | |
230 | |
242 | /* ---------------------------------------- */ |
231 | /* ---------------------------------------- */ |
243 | # ifdef HAVE_SETSID |
|
|
244 | setsid (); |
232 | setsid (); |
245 | # endif |
|
|
246 | # if defined(HAVE_SETPGID) |
|
|
247 | setpgid (0, 0); |
|
|
248 | # elif defined(HAVE_SETPGRP) |
|
|
249 | setpgrp (0, 0); |
|
|
250 | # endif |
|
|
251 | |
233 | |
252 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
253 | # ifdef TIOCNOTTY |
|
|
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
255 | if (fd >= 0) |
|
|
256 | { |
|
|
257 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
|
258 | close (fd); |
|
|
259 | } |
|
|
260 | # endif |
|
|
261 | |
|
|
262 | /* ---------------------------------------- */ |
|
|
263 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
264 | if (fd >= 0) |
|
|
265 | close (fd); /* ouch: still have controlling tty */ |
|
|
266 | |
|
|
267 | /* ---------------------------------------- */ |
|
|
268 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
235 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
269 | /* |
236 | /* |
270 | * Push STREAMS modules: |
237 | * Push STREAMS modules: |
271 | * ptem: pseudo-terminal hardware emulation module. |
238 | * ptem: pseudo-terminal hardware emulation module. |
272 | * ldterm: standard terminal line discipline. |
239 | * ldterm: standard terminal line discipline. |
273 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
281 | * documentation is really unclear about whether it is any close () on |
248 | * documentation is really unclear about whether it is any close () on |
282 | * 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 |
283 | * 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 |
284 | * through - Geoff Wing |
251 | * through - Geoff Wing |
285 | */ |
252 | */ |
286 | # ifdef HAVE_ISASTREAM |
253 | # ifdef HAVE_ISASTREAM |
287 | if (isastream (fd_tty) == 1) |
254 | if (isastream (fd_tty) == 1) |
288 | # endif |
255 | # endif |
289 | { |
256 | { |
290 | ioctl (fd_tty, I_PUSH, "ptem"); |
257 | ioctl (fd_tty, I_PUSH, "ptem"); |
291 | ioctl (fd_tty, I_PUSH, "ldterm"); |
258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
292 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
293 | } |
260 | } |
294 | #endif |
261 | # endif |
295 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
296 | # if defined(TIOCSCTTY) |
|
|
297 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
263 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
298 | # elif defined(TIOCSETCTTY) |
|
|
299 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
|
|
300 | # else |
|
|
301 | fd = open (ttydev, O_RDWR); |
|
|
302 | if (fd >= 0) |
|
|
303 | close (fd); |
|
|
304 | # endif |
|
|
305 | /* ---------------------------------------- */ |
264 | /* ---------------------------------------- */ |
306 | fd = open ("/dev/tty", O_WRONLY); |
265 | fd = open ("/dev/tty", O_WRONLY); |
307 | if (fd < 0) |
266 | if (fd < 0) |
308 | return -1; /* fatal */ |
267 | return -1; /* fatal */ |
309 | close (fd); |
268 | close (fd); |
310 | /* ---------------------------------------- */ |
269 | /* ---------------------------------------- */ |
311 | #endif /* ! __QNX__ */ |
|
|
312 | |
270 | |
313 | return 0; |
271 | return 0; |
314 | } |
272 | } |
|
|
273 | |
|
|
274 | void |
|
|
275 | rxvt_ptytty::close_tty () |
|
|
276 | { |
|
|
277 | if (tty < 0) |
|
|
278 | return; |
|
|
279 | |
|
|
280 | close (tty); |
|
|
281 | tty = -1; |
|
|
282 | } |
|
|
283 | |
|
|
284 | bool |
|
|
285 | rxvt_ptytty::make_controlling_tty () |
|
|
286 | { |
|
|
287 | return control_tty (tty) >= 0; |
|
|
288 | } |
|
|
289 | |
|
|
290 | void |
|
|
291 | rxvt_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 | ///////////////////////////////////////////////////////////////////////////// |
315 | |
318 | |
316 | #ifndef NO_SETOWNER_TTYDEV |
319 | #ifndef NO_SETOWNER_TTYDEV |
317 | static struct ttyconf { |
320 | static struct ttyconf { |
318 | gid_t gid; |
321 | gid_t gid; |
319 | mode_t mode; |
322 | mode_t mode; |
… | |
… | |
335 | gid = getgid (); |
338 | gid = getgid (); |
336 | } |
339 | } |
337 | } |
340 | } |
338 | } ttyconf; |
341 | } ttyconf; |
339 | |
342 | |
|
|
343 | ///////////////////////////////////////////////////////////////////////////// |
|
|
344 | |
340 | void |
345 | void |
341 | rxvt_ptytty::privileges (rxvt_privaction action) |
346 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
342 | { |
347 | { |
343 | if (tty < 0) |
348 | if (!name || !*name) |
344 | return; |
349 | return; |
345 | |
350 | |
346 | rxvt_privileges (RESTORE); |
351 | rxvt_privileges (RESTORE); |
347 | |
352 | |
348 | if (action == SAVE) |
353 | if (action == SAVE) |
349 | { |
354 | { |
350 | //next_tty_action = RESTORE; |
|
|
351 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
355 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
352 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
356 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
353 | if (lstat (name, &savestat) < 0) /* you lose out */ |
357 | if (lstat (name, &savestat) < 0) /* you lose out */ |
354 | ;//next_tty_action = IGNORE; |
358 | ; |
355 | else |
359 | else |
356 | # endif |
360 | # endif |
357 | { |
361 | { |
|
|
362 | saved = true; |
358 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
363 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
359 | chmod (name, ttyconf.mode); |
364 | chmod (name, ttyconf.mode); |
360 | # ifdef HAVE_REVOKE |
365 | # ifdef HAVE_REVOKE |
361 | revoke (name); |
366 | revoke (name); |
362 | # endif |
367 | # endif |
363 | } |
368 | } |
364 | } |
369 | } |
365 | else |
370 | else |
366 | { /* action == RESTORE */ |
371 | { /* action == RESTORE */ |
367 | //next_tty_action = IGNORE; |
|
|
368 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
372 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
373 | if (saved) |
|
|
374 | { |
369 | chmod (name, savestat.st_mode); |
375 | chmod (name, savestat.st_mode); |
370 | chown (name, savestat.st_uid, savestat.st_gid); |
376 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
377 | } |
371 | # else |
378 | # else |
372 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
379 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
373 | chown (name, 0, 0); |
380 | chown (name, 0, 0); |
374 | # endif |
381 | # endif |
375 | |
382 | |
… | |
… | |
377 | |
384 | |
378 | rxvt_privileges (IGNORE); |
385 | rxvt_privileges (IGNORE); |
379 | } |
386 | } |
380 | #endif |
387 | #endif |
381 | |
388 | |
382 | rxvt_ptytty::rxvt_ptytty () |
389 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
383 | { |
390 | { |
384 | pty = tty = -1; |
391 | pty = tty = -1; |
385 | name = 0; |
392 | name = 0; |
|
|
393 | #ifndef NO_SETOWNER_TTYDEV |
|
|
394 | saved = false; |
|
|
395 | #endif |
|
|
396 | #if UTMP_SUPPORT |
|
|
397 | cmd_pid = 0; |
|
|
398 | #endif |
386 | } |
399 | } |
387 | |
400 | |
388 | rxvt_ptytty::~rxvt_ptytty () |
401 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
389 | { |
402 | { |
|
|
403 | logout (); |
390 | put (); |
404 | put (); |
391 | } |
405 | } |
392 | |
406 | |
393 | void |
407 | void |
394 | |
|
|
395 | rxvt_ptytty::close_tty () |
|
|
396 | { |
|
|
397 | if (tty >= 0) close (tty); |
|
|
398 | tty = -1; |
|
|
399 | } |
|
|
400 | |
|
|
401 | void |
|
|
402 | rxvt_ptytty::put () |
408 | rxvt_ptytty_unix::put () |
403 | { |
409 | { |
404 | #ifndef NO_SETOWNER_TTYDEV |
410 | #ifndef NO_SETOWNER_TTYDEV |
405 | if (tty >= 0) |
|
|
406 | privileges (RESTORE); |
411 | privileges (RESTORE); |
407 | #endif |
412 | #endif |
408 | |
413 | |
409 | if (pty >= 0) close (pty); |
414 | if (pty >= 0) close (pty); |
410 | close_tty (); |
415 | close_tty (); |
411 | free (name); |
416 | free (name); |
… | |
… | |
413 | pty = tty = -1; |
418 | pty = tty = -1; |
414 | name = 0; |
419 | name = 0; |
415 | } |
420 | } |
416 | |
421 | |
417 | bool |
422 | bool |
418 | rxvt_ptytty::make_controlling_tty () |
|
|
419 | { |
|
|
420 | return control_tty (tty, name) >= 0; |
|
|
421 | } |
|
|
422 | |
|
|
423 | bool |
|
|
424 | rxvt_ptytty::get () |
423 | rxvt_ptytty_unix::get () |
425 | { |
424 | { |
426 | /* get master (pty) */ |
425 | /* get master (pty) */ |
427 | if ((pty = get_pty (&tty, &name)) < 0) |
426 | if ((pty = get_pty (&tty, &name)) < 0) |
428 | return false; |
427 | return false; |
429 | |
428 | |
… | |
… | |
444 | } |
443 | } |
445 | |
444 | |
446 | return true; |
445 | return true; |
447 | } |
446 | } |
448 | |
447 | |
449 | void |
448 | // a "factory" *g* |
450 | rxvt_ptytty::set_utf8_mode (bool on) |
449 | rxvt_ptytty *rxvt_new_ptytty () |
451 | { |
450 | { |
452 | #ifdef IUTF8 |
451 | return new rxvt_ptytty_unix; |
453 | if (pty != -1) |
|
|
454 | { |
|
|
455 | struct termios tio; |
|
|
456 | |
|
|
457 | if (tcgetattr (pty, &tio) != -1) |
|
|
458 | { |
|
|
459 | tcflag_t new_cflag = tio.c_iflag; |
|
|
460 | |
|
|
461 | if (on) |
|
|
462 | new_cflag |= IUTF8; |
|
|
463 | else |
|
|
464 | new_cflag &= ~IUTF8; |
|
|
465 | |
|
|
466 | if (new_cflag != tio.c_iflag) |
|
|
467 | { |
|
|
468 | tio.c_iflag = new_cflag; |
|
|
469 | tcsetattr (pty, TCSANOW, &tio); |
|
|
470 | } |
|
|
471 | } |
|
|
472 | } |
|
|
473 | #endif |
|
|
474 | } |
452 | } |
475 | |
453 | |
476 | /*----------------------- end-of-file (C source) -----------------------*/ |
454 | /*----------------------- end-of-file (C source) -----------------------*/ |
477 | |
455 | |