… | |
… | |
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 | // better do this via configure, but.... |
49 | # include <pty.h> |
53 | #if defined(__FreeBSD__) |
50 | #elif defined(HAVE_LIBUTIL_H) |
54 | # include <libutil.h> |
51 | # include <libutil.h> |
55 | #elif defined(__DARWIN__) |
52 | #elif defined(HAVE_UTIL_H) |
56 | # include <util.h> |
53 | # include <util.h> |
57 | #endif |
54 | #endif |
58 | |
55 | |
59 | #include <cstdio> |
56 | #include <cstdio> |
60 | #include <grp.h> |
57 | #include <grp.h> |
|
|
58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
61 | |
60 | |
62 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
63 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
64 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
65 | /* |
64 | /* |
… | |
… | |
73 | int pfd; |
72 | int pfd; |
74 | |
73 | |
75 | #ifdef PTYS_ARE_OPENPTY |
74 | #ifdef PTYS_ARE_OPENPTY |
76 | char tty_name[sizeof "/dev/pts/????\0"]; |
75 | char tty_name[sizeof "/dev/pts/????\0"]; |
77 | |
76 | |
|
|
77 | rxvt_privileges(RESTORE); |
78 | 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) |
79 | { |
82 | { |
80 | *ttydev = strdup (tty_name); |
83 | *ttydev = strdup (tty_name); |
81 | return pfd; |
84 | return pfd; |
82 | } |
85 | } |
83 | #endif |
86 | #endif |
… | |
… | |
86 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
89 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
87 | if (*ttydev != NULL) |
90 | if (*ttydev != NULL) |
88 | return pfd; |
91 | return pfd; |
89 | #endif |
92 | #endif |
90 | |
93 | |
91 | #ifdef PTYS_ARE_GETPTY |
|
|
92 | |
|
|
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) |
|
|
249 | { |
|
|
250 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
|
251 | close (fd); |
|
|
252 | } |
|
|
253 | # endif |
|
|
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) |
|
|
290 | { |
|
|
291 | #ifdef IUTF8 |
|
|
292 | if (pty < 0) |
|
|
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; |
|
|
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 | { |
|
|
346 | if (!name || !*name) |
|
|
347 | return; |
|
|
348 | |
336 | rxvt_privileges (RESTORE); |
349 | rxvt_privileges (RESTORE); |
337 | |
350 | |
338 | if (action == SAVE) |
351 | if (action == SAVE) |
339 | { |
352 | { |
340 | //next_tty_action = RESTORE; |
|
|
341 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
353 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
342 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
354 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
343 | if (lstat (name, &savestat) < 0) /* you lose out */ |
355 | if (lstat (name, &savestat) < 0) /* you lose out */ |
344 | ;//next_tty_action = IGNORE; |
356 | ; |
345 | else |
357 | else |
346 | # endif |
358 | # endif |
347 | |
|
|
348 | { |
359 | { |
|
|
360 | saved = true; |
349 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
361 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
350 | chmod (name, ttyconf.mode); |
362 | chmod (name, ttyconf.mode); |
351 | # ifdef HAVE_REVOKE |
363 | # ifdef HAVE_REVOKE |
352 | revoke (name); |
364 | revoke (name); |
353 | # endif |
365 | # endif |
354 | |
|
|
355 | } |
366 | } |
356 | } |
367 | } |
357 | else |
368 | else |
358 | { /* action == RESTORE */ |
369 | { /* action == RESTORE */ |
359 | //next_tty_action = IGNORE; |
|
|
360 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
370 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
371 | if (saved) |
|
|
372 | { |
361 | chmod (name, savestat.st_mode); |
373 | chmod (name, savestat.st_mode); |
362 | chown (name, savestat.st_uid, savestat.st_gid); |
374 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
375 | } |
363 | # else |
376 | # else |
364 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
377 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
365 | chown (name, 0, 0); |
378 | chown (name, 0, 0); |
366 | # endif |
379 | # endif |
367 | |
380 | |
… | |
… | |
369 | |
382 | |
370 | rxvt_privileges (IGNORE); |
383 | rxvt_privileges (IGNORE); |
371 | } |
384 | } |
372 | #endif |
385 | #endif |
373 | |
386 | |
374 | rxvt_ptytty::rxvt_ptytty () |
387 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
375 | { |
388 | { |
376 | pty = tty = -1; |
389 | pty = tty = -1; |
377 | name = 0; |
390 | name = 0; |
|
|
391 | #ifndef NO_SETOWNER_TTYDEV |
|
|
392 | saved = false; |
|
|
393 | #endif |
|
|
394 | #if UTMP_SUPPORT |
|
|
395 | cmd_pid = 0; |
|
|
396 | #endif |
378 | } |
397 | } |
379 | |
398 | |
380 | rxvt_ptytty::~rxvt_ptytty () |
399 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
381 | { |
400 | { |
|
|
401 | logout (); |
382 | put (); |
402 | put (); |
383 | } |
403 | } |
384 | |
404 | |
385 | void |
405 | void |
386 | |
|
|
387 | rxvt_ptytty::close_tty () |
|
|
388 | { |
|
|
389 | if (tty >= 0) close (tty); |
|
|
390 | tty = -1; |
|
|
391 | } |
|
|
392 | |
|
|
393 | void |
|
|
394 | rxvt_ptytty::put () |
406 | rxvt_ptytty_unix::put () |
395 | { |
407 | { |
396 | #ifndef NO_SETOWNER_TTYDEV |
408 | #ifndef NO_SETOWNER_TTYDEV |
397 | if (tty >= 0) |
|
|
398 | privileges (RESTORE); |
409 | privileges (RESTORE); |
399 | #endif |
410 | #endif |
400 | |
411 | |
401 | if (pty >= 0) close (pty); |
412 | if (pty >= 0) close (pty); |
402 | close_tty (); |
413 | close_tty (); |
403 | free (name); |
414 | free (name); |
… | |
… | |
405 | pty = tty = -1; |
416 | pty = tty = -1; |
406 | name = 0; |
417 | name = 0; |
407 | } |
418 | } |
408 | |
419 | |
409 | bool |
420 | bool |
410 | rxvt_ptytty::make_controlling_tty () |
|
|
411 | { |
|
|
412 | return control_tty (tty, name) >= 0; |
|
|
413 | } |
|
|
414 | |
|
|
415 | bool |
|
|
416 | rxvt_ptytty::get () |
421 | rxvt_ptytty_unix::get () |
417 | { |
422 | { |
418 | /* get master (pty) */ |
423 | /* get master (pty) */ |
419 | if ((pty = get_pty (&tty, &name)) < 0) |
424 | if ((pty = get_pty (&tty, &name)) < 0) |
420 | return false; |
425 | return false; |
421 | |
426 | |