… | |
… | |
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 | #include "ptytty.h" |
|
|
60 | |
|
|
61 | ///////////////////////////////////////////////////////////////////////////// |
59 | |
62 | |
60 | /* ------------------------------------------------------------------------- * |
63 | /* ------------------------------------------------------------------------- * |
61 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
64 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * ------------------------------------------------------------------------- */ |
65 | * ------------------------------------------------------------------------- */ |
63 | /* |
66 | /* |
… | |
… | |
71 | int pfd; |
74 | int pfd; |
72 | |
75 | |
73 | #ifdef PTYS_ARE_OPENPTY |
76 | #ifdef PTYS_ARE_OPENPTY |
74 | char tty_name[sizeof "/dev/pts/????\0"]; |
77 | char tty_name[sizeof "/dev/pts/????\0"]; |
75 | |
78 | |
|
|
79 | rxvt_privileges(RESTORE); |
76 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
80 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
|
|
81 | rxvt_privileges(IGNORE); |
|
|
82 | |
|
|
83 | if (res != -1) |
77 | { |
84 | { |
78 | *ttydev = strdup (tty_name); |
85 | *ttydev = strdup (tty_name); |
79 | return pfd; |
86 | return pfd; |
80 | } |
87 | } |
81 | #endif |
88 | #endif |
… | |
… | |
84 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
91 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
85 | if (*ttydev != NULL) |
92 | if (*ttydev != NULL) |
86 | return pfd; |
93 | return pfd; |
87 | #endif |
94 | #endif |
88 | |
95 | |
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) |
96 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
102 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
97 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
103 | |
98 | |
104 | { |
99 | { |
105 | # ifdef PTYS_ARE_GETPT |
100 | # ifdef PTYS_ARE_GETPT |
106 | pfd = getpt (); |
101 | pfd = getpt(); |
|
|
102 | # else |
|
|
103 | # ifdef PTYS_ARE_POSIX |
|
|
104 | pfd = posix_openpt (O_RDWR); |
107 | # else |
105 | # else |
108 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
106 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
107 | # endif |
109 | # endif |
108 | # endif |
110 | |
109 | |
111 | if (pfd >= 0) |
110 | if (pfd >= 0) |
112 | { |
111 | { |
113 | if (grantpt (pfd) == 0 /* change slave permissions */ |
112 | if (grantpt (pfd) == 0 /* change slave permissions */ |
… | |
… | |
223 | /*----------------------------------------------------------------------*/ |
222 | /*----------------------------------------------------------------------*/ |
224 | /* |
223 | /* |
225 | * 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 |
226 | */ |
225 | */ |
227 | static int |
226 | static int |
228 | control_tty (int fd_tty, const char *ttydev) |
227 | control_tty (int fd_tty) |
229 | { |
228 | { |
230 | #ifndef __QNX__ |
|
|
231 | int fd; |
229 | int fd; |
232 | |
230 | |
233 | /* ---------------------------------------- */ |
231 | /* ---------------------------------------- */ |
234 | # ifdef HAVE_SETSID |
|
|
235 | setsid (); |
232 | setsid (); |
236 | # endif |
|
|
237 | # if defined(HAVE_SETPGID) |
|
|
238 | setpgid (0, 0); |
|
|
239 | # elif defined(HAVE_SETPGRP) |
|
|
240 | setpgrp (0, 0); |
|
|
241 | # endif |
|
|
242 | |
233 | |
243 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
244 | # ifdef TIOCNOTTY |
|
|
245 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
246 | if (fd >= 0) |
|
|
247 | { |
|
|
248 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
|
249 | close (fd); |
|
|
250 | } |
|
|
251 | # endif |
|
|
252 | |
|
|
253 | /* ---------------------------------------- */ |
|
|
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
255 | if (fd >= 0) |
|
|
256 | close (fd); /* ouch: still have controlling tty */ |
|
|
257 | |
|
|
258 | /* ---------------------------------------- */ |
|
|
259 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
235 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
260 | /* |
236 | /* |
261 | * Push STREAMS modules: |
237 | * Push STREAMS modules: |
262 | * ptem: pseudo-terminal hardware emulation module. |
238 | * ptem: pseudo-terminal hardware emulation module. |
263 | * ldterm: standard terminal line discipline. |
239 | * ldterm: standard terminal line discipline. |
264 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
272 | * documentation is really unclear about whether it is any close () on |
248 | * 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 |
249 | * 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 |
250 | * close () - on the master side which causes a hang up to be sent |
275 | * through - Geoff Wing |
251 | * through - Geoff Wing |
276 | */ |
252 | */ |
277 | # ifdef HAVE_ISASTREAM |
253 | # ifdef HAVE_ISASTREAM |
278 | if (isastream (fd_tty) == 1) |
254 | if (isastream (fd_tty) == 1) |
279 | # endif |
255 | # endif |
280 | { |
256 | { |
281 | ioctl (fd_tty, I_PUSH, "ptem"); |
257 | ioctl (fd_tty, I_PUSH, "ptem"); |
282 | ioctl (fd_tty, I_PUSH, "ldterm"); |
258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
283 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
284 | } |
260 | } |
285 | #endif |
261 | # endif |
286 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
287 | # if defined(TIOCSCTTY) |
|
|
288 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
263 | 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) |
|
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294 | close (fd); |
|
|
295 | # endif |
|
|
296 | /* ---------------------------------------- */ |
264 | /* ---------------------------------------- */ |
297 | fd = open ("/dev/tty", O_WRONLY); |
265 | fd = open ("/dev/tty", O_WRONLY); |
298 | if (fd < 0) |
266 | if (fd < 0) |
299 | return -1; /* fatal */ |
267 | return -1; /* fatal */ |
300 | close (fd); |
268 | close (fd); |
301 | /* ---------------------------------------- */ |
269 | /* ---------------------------------------- */ |
302 | #endif /* ! __QNX__ */ |
|
|
303 | |
270 | |
304 | return 0; |
271 | return 0; |
305 | } |
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 | { |
|
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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; |
|
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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 | ///////////////////////////////////////////////////////////////////////////// |
306 | |
318 | |
307 | #ifndef NO_SETOWNER_TTYDEV |
319 | #ifndef NO_SETOWNER_TTYDEV |
308 | static struct ttyconf { |
320 | static struct ttyconf { |
309 | gid_t gid; |
321 | gid_t gid; |
310 | mode_t mode; |
322 | mode_t mode; |
… | |
… | |
326 | gid = getgid (); |
338 | gid = getgid (); |
327 | } |
339 | } |
328 | } |
340 | } |
329 | } ttyconf; |
341 | } ttyconf; |
330 | |
342 | |
|
|
343 | ///////////////////////////////////////////////////////////////////////////// |
|
|
344 | |
331 | void |
345 | void |
332 | rxvt_ptytty::privileges (rxvt_privaction action) |
346 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
333 | { |
347 | { |
|
|
348 | if (!name || !*name) |
|
|
349 | return; |
|
|
350 | |
334 | rxvt_privileges (RESTORE); |
351 | rxvt_privileges (RESTORE); |
335 | |
352 | |
336 | if (action == SAVE) |
353 | if (action == SAVE) |
337 | { |
354 | { |
338 | //next_tty_action = RESTORE; |
|
|
339 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
355 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
340 | /* 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 */ |
341 | if (lstat (name, &savestat) < 0) /* you lose out */ |
357 | if (lstat (name, &savestat) < 0) /* you lose out */ |
342 | ;//next_tty_action = IGNORE; |
358 | ; |
343 | else |
359 | else |
344 | # endif |
360 | # endif |
345 | |
|
|
346 | { |
361 | { |
|
|
362 | saved = true; |
347 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
363 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
348 | chmod (name, ttyconf.mode); |
364 | chmod (name, ttyconf.mode); |
349 | # ifdef HAVE_REVOKE |
365 | # ifdef HAVE_REVOKE |
350 | revoke (name); |
366 | revoke (name); |
351 | # endif |
367 | # endif |
352 | |
|
|
353 | } |
368 | } |
354 | } |
369 | } |
355 | else |
370 | else |
356 | { /* action == RESTORE */ |
371 | { /* action == RESTORE */ |
357 | //next_tty_action = IGNORE; |
|
|
358 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
372 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
373 | if (saved) |
|
|
374 | { |
359 | chmod (name, savestat.st_mode); |
375 | chmod (name, savestat.st_mode); |
360 | chown (name, savestat.st_uid, savestat.st_gid); |
376 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
377 | } |
361 | # else |
378 | # else |
362 | 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)); |
363 | chown (name, 0, 0); |
380 | chown (name, 0, 0); |
364 | # endif |
381 | # endif |
365 | |
382 | |
… | |
… | |
367 | |
384 | |
368 | rxvt_privileges (IGNORE); |
385 | rxvt_privileges (IGNORE); |
369 | } |
386 | } |
370 | #endif |
387 | #endif |
371 | |
388 | |
372 | rxvt_ptytty::rxvt_ptytty () |
389 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
373 | { |
390 | { |
374 | pty = tty = -1; |
391 | pty = tty = -1; |
375 | 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 |
376 | } |
399 | } |
377 | |
400 | |
378 | rxvt_ptytty::~rxvt_ptytty () |
401 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
379 | { |
402 | { |
|
|
403 | logout (); |
380 | put (); |
404 | put (); |
381 | } |
405 | } |
382 | |
406 | |
383 | void |
407 | 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 () |
408 | rxvt_ptytty_unix::put () |
393 | { |
409 | { |
394 | #ifndef NO_SETOWNER_TTYDEV |
410 | #ifndef NO_SETOWNER_TTYDEV |
395 | if (tty >= 0) |
|
|
396 | privileges (RESTORE); |
411 | privileges (RESTORE); |
397 | #endif |
412 | #endif |
398 | |
413 | |
399 | if (pty >= 0) close (pty); |
414 | if (pty >= 0) close (pty); |
400 | close_tty (); |
415 | close_tty (); |
401 | free (name); |
416 | free (name); |
… | |
… | |
403 | pty = tty = -1; |
418 | pty = tty = -1; |
404 | name = 0; |
419 | name = 0; |
405 | } |
420 | } |
406 | |
421 | |
407 | bool |
422 | bool |
408 | rxvt_ptytty::make_controlling_tty () |
|
|
409 | { |
|
|
410 | return control_tty (tty, name) >= 0; |
|
|
411 | } |
|
|
412 | |
|
|
413 | bool |
|
|
414 | rxvt_ptytty::get () |
423 | rxvt_ptytty_unix::get () |
415 | { |
424 | { |
416 | /* get master (pty) */ |
425 | /* get master (pty) */ |
417 | if ((pty = get_pty (&tty, &name)) < 0) |
426 | if ((pty = get_pty (&tty, &name)) < 0) |
418 | return false; |
427 | return false; |
419 | |
428 | |
… | |
… | |
434 | } |
443 | } |
435 | |
444 | |
436 | return true; |
445 | return true; |
437 | } |
446 | } |
438 | |
447 | |
|
|
448 | // a "factory" *g* |
|
|
449 | rxvt_ptytty *rxvt_new_ptytty () |
|
|
450 | { |
|
|
451 | return new rxvt_ptytty_unix; |
|
|
452 | } |
|
|
453 | |
439 | /*----------------------- end-of-file (C source) -----------------------*/ |
454 | /*----------------------- end-of-file (C source) -----------------------*/ |
440 | |
455 | |