1 | // This file is part of libptytty. Do not make local modifications. |
|
|
2 | // http://software.schmorp.de/pkg/libptytty |
|
|
3 | |
|
|
4 | /*----------------------------------------------------------------------* |
1 | /*----------------------------------------------------------------------* |
5 | * File: ptytty.C |
2 | * File: ptytty.C |
6 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
7 | * |
4 | * |
8 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
9 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
6 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
10 | * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
7 | * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de> |
11 | * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> |
8 | * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> |
12 | * |
9 | * |
13 | * This program is free software; you can redistribute it and/or modify |
10 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License as published by |
11 | * it under the terms of the GNU General Public License as published by |
15 | * the Free Software Foundation; either version 2 of the License, or |
12 | * the Free Software Foundation; either version 2 of the License, or |
… | |
… | |
23 | * You should have received a copy of the GNU General Public License |
20 | * You should have received a copy of the GNU General Public License |
24 | * along with this program; if not, write to the Free Software |
21 | * along with this program; if not, write to the Free Software |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26 | *---------------------------------------------------------------------*/ |
23 | *---------------------------------------------------------------------*/ |
27 | |
24 | |
28 | #include "../config.h" |
25 | #include "config.h" |
29 | |
26 | |
30 | #include "ptytty.h" |
27 | #include "ptytty.h" |
31 | |
28 | |
32 | #include <cstdlib> |
29 | #include <stdlib.h> |
|
|
30 | #include <stdio.h> |
33 | #include <cstring> |
31 | #include <string.h> |
34 | #include <csignal> |
|
|
35 | |
32 | |
36 | #include <sys/types.h> |
33 | #include <sys/types.h> |
|
|
34 | #include <sys/stat.h> |
37 | #include <unistd.h> |
35 | #include <unistd.h> |
38 | #include <fcntl.h> |
36 | #include <fcntl.h> |
39 | |
37 | |
40 | #ifdef HAVE_SYS_IOCTL_H |
38 | #ifdef HAVE_SYS_IOCTL_H |
41 | # include <sys/ioctl.h> |
39 | # include <sys/ioctl.h> |
42 | #endif |
40 | #endif |
43 | #if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) |
41 | #if defined(HAVE_SYS_STROPTS_H) |
44 | # include <sys/stropts.h> /* for I_PUSH */ |
42 | # include <sys/stropts.h> /* for I_PUSH */ |
45 | #endif |
43 | #endif |
46 | #ifdef HAVE_ISASTREAM |
44 | #if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H) |
47 | # include <stropts.h> |
45 | # include <stropts.h> |
48 | #endif |
46 | #endif |
49 | #if defined(HAVE_PTY_H) |
47 | #if defined(HAVE_PTY_H) |
50 | # include <pty.h> |
48 | # include <pty.h> |
51 | #elif defined(HAVE_LIBUTIL_H) |
49 | #elif defined(HAVE_LIBUTIL_H) |
… | |
… | |
55 | #endif |
53 | #endif |
56 | #ifdef TTY_GID_SUPPORT |
54 | #ifdef TTY_GID_SUPPORT |
57 | #include <grp.h> |
55 | #include <grp.h> |
58 | #endif |
56 | #endif |
59 | |
57 | |
60 | #include <cstdio> |
58 | #ifndef O_NOCTTY |
|
|
59 | # define O_NOCTTY 0 |
|
|
60 | #endif |
61 | |
61 | |
62 | ///////////////////////////////////////////////////////////////////////////// |
62 | ///////////////////////////////////////////////////////////////////////////// |
63 | |
63 | |
64 | /* ------------------------------------------------------------------------- * |
64 | /* ------------------------------------------------------------------------- * |
65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
… | |
… | |
75 | get_pty (int *fd_tty, char **ttydev) |
75 | get_pty (int *fd_tty, char **ttydev) |
76 | { |
76 | { |
77 | int pfd; |
77 | int pfd; |
78 | |
78 | |
79 | # if defined(HAVE_GETPT) |
79 | # if defined(HAVE_GETPT) |
80 | pfd = getpt(); |
80 | pfd = getpt (); |
81 | # elif defined(HAVE_POSIX_OPENPT) |
81 | # elif defined(HAVE_POSIX_OPENPT) |
82 | pfd = posix_openpt (O_RDWR); |
82 | pfd = posix_openpt (O_RDWR | O_NOCTTY); |
83 | # else |
83 | # else |
|
|
84 | # ifdef _AIX |
84 | pfd = open (CLONE_DEVICE, O_RDWR | O_NOCTTY, 0); |
85 | pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0); |
|
|
86 | # else |
|
|
87 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
88 | # endif |
85 | # endif |
89 | # endif |
86 | |
90 | |
87 | if (pfd >= 0) |
91 | if (pfd >= 0) |
88 | { |
92 | { |
89 | if (grantpt (pfd) == 0 /* change slave permissions */ |
93 | if (grantpt (pfd) == 0 /* change slave permissions */ |
90 | && unlockpt (pfd) == 0) |
94 | && unlockpt (pfd) == 0) |
|
|
95 | { |
91 | { /* slave now unlocked */ |
96 | /* slave now unlocked */ |
92 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
97 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
93 | return pfd; |
98 | return pfd; |
94 | } |
99 | } |
95 | |
100 | |
96 | close (pfd); |
101 | close (pfd); |
… | |
… | |
122 | |
127 | |
123 | static int |
128 | static int |
124 | get_pty (int *fd_tty, char **ttydev) |
129 | get_pty (int *fd_tty, char **ttydev) |
125 | { |
130 | { |
126 | int pfd; |
131 | int pfd; |
|
|
132 | char *slave; |
127 | |
133 | |
128 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
134 | slave = _getpty (&pfd, O_RDWR | O_NOCTTY, 0622, 0); |
129 | |
135 | |
130 | if (*ttydev != NULL) |
136 | if (slave != NULL) |
131 | return pfd; |
|
|
132 | |
|
|
133 | return -1; |
|
|
134 | } |
|
|
135 | |
|
|
136 | #elif defined(HAVE_DEV_PTC) |
|
|
137 | |
|
|
138 | static int |
|
|
139 | get_pty (int *fd_tty, char **ttydev) |
|
|
140 | { |
|
|
141 | int pfd; |
|
|
142 | |
|
|
143 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
144 | { |
137 | { |
145 | *ttydev = strdup (ttyname (pfd)); |
|
|
146 | return pfd; |
|
|
147 | } |
|
|
148 | |
|
|
149 | return -1; |
|
|
150 | } |
|
|
151 | |
|
|
152 | #elif defined(HAVE_DEV_CLONE) |
|
|
153 | |
|
|
154 | static int |
|
|
155 | get_pty (int *fd_tty, char **ttydev) |
|
|
156 | { |
|
|
157 | int pfd; |
|
|
158 | |
|
|
159 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
160 | { |
|
|
161 | *ttydev = strdup (ptsname (pfd)); |
138 | *ttydev = strdup (slave); |
162 | return pfd; |
139 | return pfd; |
163 | } |
140 | } |
164 | |
141 | |
165 | return -1; |
142 | return -1; |
166 | } |
143 | } |
… | |
… | |
178 | const char *majors = "pqrstuvwxyzabcde"; |
155 | const char *majors = "pqrstuvwxyzabcde"; |
179 | const char *minors = "0123456789abcdef"; |
156 | const char *minors = "0123456789abcdef"; |
180 | |
157 | |
181 | for (i = 0; i < 256; i++) |
158 | for (i = 0; i < 256; i++) |
182 | { |
159 | { |
183 | snprintf(pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]); |
160 | snprintf (pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]); |
184 | snprintf(tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]); |
161 | snprintf (tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]); |
185 | |
162 | |
186 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
163 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
187 | { |
164 | { |
188 | snprintf(pty_name, 32, "/dev/ptyp%d", i); |
165 | snprintf (pty_name, 32, "/dev/ptyp%d", i); |
189 | snprintf(tty_name, 32, "/dev/ttyp%d", i); |
166 | snprintf (tty_name, 32, "/dev/ttyp%d", i); |
190 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
167 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
191 | continue; |
168 | continue; |
192 | } |
169 | } |
193 | |
170 | |
194 | if (access (tty_name, R_OK | W_OK) == 0) |
171 | if (access (tty_name, R_OK | W_OK) == 0) |
… | |
… | |
224 | { |
201 | { |
225 | int fd; |
202 | int fd; |
226 | |
203 | |
227 | setsid (); |
204 | setsid (); |
228 | |
205 | |
229 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
206 | #ifdef TIOCSCTTY |
|
|
207 | ioctl (fd_tty, TIOCSCTTY, NULL); |
|
|
208 | #else |
|
|
209 | fd = open (ttyname (fd_tty), O_RDWR); |
|
|
210 | if (fd >= 0) |
|
|
211 | close (fd); |
|
|
212 | #endif |
|
|
213 | |
|
|
214 | fd = open ("/dev/tty", O_WRONLY); |
|
|
215 | if (fd < 0) |
|
|
216 | return -1; /* fatal */ |
|
|
217 | |
|
|
218 | close (fd); |
|
|
219 | |
|
|
220 | return 0; |
|
|
221 | } |
|
|
222 | |
|
|
223 | void |
|
|
224 | ptytty::close_tty () |
|
|
225 | { |
|
|
226 | if (tty < 0) |
|
|
227 | return; |
|
|
228 | |
|
|
229 | close (tty); |
|
|
230 | tty = -1; |
|
|
231 | } |
|
|
232 | |
|
|
233 | bool |
|
|
234 | ptytty::make_controlling_tty () |
|
|
235 | { |
|
|
236 | return control_tty (tty) >= 0; |
|
|
237 | } |
|
|
238 | |
|
|
239 | void |
|
|
240 | ptytty::set_utf8_mode (bool on) |
|
|
241 | { |
|
|
242 | #ifdef IUTF8 |
|
|
243 | if (pty < 0) |
|
|
244 | return; |
|
|
245 | |
|
|
246 | struct termios tio; |
|
|
247 | |
|
|
248 | if (tcgetattr (pty, &tio) != -1) |
|
|
249 | { |
|
|
250 | tcflag_t new_cflag = tio.c_iflag; |
|
|
251 | |
|
|
252 | if (on) |
|
|
253 | new_cflag |= IUTF8; |
|
|
254 | else |
|
|
255 | new_cflag &= ~IUTF8; |
|
|
256 | |
|
|
257 | if (new_cflag != tio.c_iflag) |
|
|
258 | { |
|
|
259 | tio.c_iflag = new_cflag; |
|
|
260 | tcsetattr (pty, TCSANOW, &tio); |
|
|
261 | } |
|
|
262 | } |
|
|
263 | #endif |
|
|
264 | } |
|
|
265 | |
|
|
266 | static struct ttyconf { |
|
|
267 | gid_t gid; |
|
|
268 | mode_t mode; |
|
|
269 | |
|
|
270 | ttyconf () |
|
|
271 | { |
|
|
272 | #ifdef TTY_GID_SUPPORT |
|
|
273 | struct group *gr = getgrnam ("tty"); |
|
|
274 | |
|
|
275 | if (gr) |
|
|
276 | { |
|
|
277 | /* change group ownership of tty to "tty" */ |
|
|
278 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
|
|
279 | gid = gr->gr_gid; |
|
|
280 | } |
|
|
281 | else |
|
|
282 | #endif /* TTY_GID_SUPPORT */ |
|
|
283 | { |
|
|
284 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
|
|
285 | gid = 0; |
|
|
286 | } |
|
|
287 | } |
|
|
288 | } ttyconf; |
|
|
289 | |
|
|
290 | ptytty_unix::ptytty_unix () |
|
|
291 | { |
|
|
292 | name = 0; |
|
|
293 | #if UTMP_SUPPORT |
|
|
294 | cmd_pid = 0; |
|
|
295 | #endif |
|
|
296 | } |
|
|
297 | |
|
|
298 | ptytty_unix::~ptytty_unix () |
|
|
299 | { |
|
|
300 | #if UTMP_SUPPORT |
|
|
301 | logout (); |
|
|
302 | #endif |
|
|
303 | put (); |
|
|
304 | } |
|
|
305 | |
|
|
306 | void |
|
|
307 | ptytty_unix::put () |
|
|
308 | { |
|
|
309 | if (name) |
|
|
310 | { |
|
|
311 | chmod (name, RESTORE_TTY_MODE); |
|
|
312 | chown (name, 0, ttyconf.gid); |
|
|
313 | } |
|
|
314 | |
|
|
315 | close_tty (); |
|
|
316 | |
|
|
317 | if (pty >= 0) |
|
|
318 | close (pty); |
|
|
319 | |
|
|
320 | free (name); |
|
|
321 | |
|
|
322 | pty = tty = -1; |
|
|
323 | name = 0; |
|
|
324 | } |
|
|
325 | |
|
|
326 | bool |
|
|
327 | ptytty_unix::get () |
|
|
328 | { |
|
|
329 | /* get master (pty) */ |
|
|
330 | if ((pty = get_pty (&tty, &name)) < 0) |
|
|
331 | return false; |
|
|
332 | |
|
|
333 | /* get slave (tty) */ |
|
|
334 | if (tty < 0) |
|
|
335 | { |
|
|
336 | #ifndef NO_SETOWNER_TTYDEV |
|
|
337 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
338 | chmod (name, ttyconf.mode); |
|
|
339 | # ifdef HAVE_REVOKE |
|
|
340 | revoke (name); |
|
|
341 | # endif |
|
|
342 | #endif |
|
|
343 | |
|
|
344 | if ((tty = get_tty (name)) < 0) |
|
|
345 | { |
|
|
346 | put (); |
|
|
347 | return false; |
|
|
348 | } |
|
|
349 | } |
|
|
350 | |
|
|
351 | #if defined(I_PUSH) |
230 | /* |
352 | /* |
231 | * Push STREAMS modules: |
353 | * Push STREAMS modules: |
232 | * ptem: pseudo-terminal hardware emulation module. |
354 | * ptem: pseudo-terminal hardware emulation module. |
233 | * ldterm: standard terminal line discipline. |
355 | * ldterm: standard terminal line discipline. |
234 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
356 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
235 | * |
357 | * |
236 | * After we push the STREAMS modules, the first open () on the slave side |
358 | * After we push the STREAMS modules, the first open () on the slave side |
237 | * (i.e. the next section between the dashes giving us "tty opened OK") |
|
|
238 | * should make the "ptem" (or "ldterm" depending upon either which OS |
359 | * should make the "ptem" (or "ldterm" depending upon either which OS |
239 | * version or which set of manual pages you have) module give us a |
360 | * version or which set of manual pages you have) module give us a |
240 | * controlling terminal. We must already have close ()d the master side |
361 | * controlling terminal. We must already have close ()d the master side |
241 | * fd in this child process before we push STREAMS modules on because the |
362 | * fd in this child process before we push STREAMS modules on because the |
242 | * documentation is really unclear about whether it is any close () on |
363 | * documentation is really unclear about whether it is any close () on |
243 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
364 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
244 | * close () - on the master side which causes a hang up to be sent |
365 | * close () - on the master side which causes a hang up to be sent |
245 | * through - Geoff Wing |
366 | * through - Geoff Wing |
246 | */ |
367 | */ |
247 | # ifdef HAVE_ISASTREAM |
368 | #if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H) |
248 | if (isastream (fd_tty) == 1) |
369 | if (isastream (tty) == 1) |
249 | # endif |
370 | # endif |
250 | { |
371 | { |
251 | ioctl (fd_tty, I_PUSH, "ptem"); |
372 | ioctl (tty, I_PUSH, "ptem"); |
252 | ioctl (fd_tty, I_PUSH, "ldterm"); |
373 | ioctl (tty, I_PUSH, "ldterm"); |
253 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
374 | ioctl (tty, I_PUSH, "ttcompat"); |
254 | } |
|
|
255 | #endif |
|
|
256 | |
|
|
257 | #ifdef TIOCSCTTY |
|
|
258 | ioctl (fd_tty, TIOCSCTTY, NULL); |
|
|
259 | #else |
|
|
260 | fd = open (ttyname (fd_tty), O_RDWR); |
|
|
261 | if (fd >= 0) |
|
|
262 | close (fd); |
|
|
263 | #endif |
|
|
264 | |
|
|
265 | fd = open ("/dev/tty", O_WRONLY); |
|
|
266 | if (fd < 0) |
|
|
267 | return -1; /* fatal */ |
|
|
268 | |
|
|
269 | close (fd); |
|
|
270 | |
|
|
271 | return 0; |
|
|
272 | } |
|
|
273 | |
|
|
274 | void |
|
|
275 | ptytty::close_tty () |
|
|
276 | { |
|
|
277 | if (tty < 0) |
|
|
278 | return; |
|
|
279 | |
|
|
280 | close (tty); |
|
|
281 | tty = -1; |
|
|
282 | } |
|
|
283 | |
|
|
284 | bool |
|
|
285 | ptytty::make_controlling_tty () |
|
|
286 | { |
|
|
287 | return control_tty (tty) >= 0; |
|
|
288 | } |
|
|
289 | |
|
|
290 | void |
|
|
291 | 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 | { |
375 | } |
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 |
376 | #endif |
315 | } |
|
|
316 | |
377 | |
317 | static struct ttyconf { |
|
|
318 | gid_t gid; |
|
|
319 | mode_t mode; |
|
|
320 | |
|
|
321 | ttyconf () |
|
|
322 | { |
|
|
323 | #ifdef TTY_GID_SUPPORT |
|
|
324 | struct group *gr = getgrnam ("tty"); |
|
|
325 | |
|
|
326 | if (gr) |
|
|
327 | { /* change group ownership of tty to "tty" */ |
|
|
328 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
|
|
329 | gid = gr->gr_gid; |
|
|
330 | } |
|
|
331 | else |
|
|
332 | #endif /* TTY_GID_SUPPORT */ |
|
|
333 | { |
|
|
334 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
|
|
335 | gid = 0; |
|
|
336 | } |
|
|
337 | } |
|
|
338 | } ttyconf; |
|
|
339 | |
|
|
340 | ptytty_unix::ptytty_unix () |
|
|
341 | { |
|
|
342 | name = 0; |
|
|
343 | #if UTMP_SUPPORT |
378 | #if UTMP_SUPPORT |
344 | cmd_pid = 0; |
379 | # if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID) |
345 | #endif |
380 | int fd_stdin = dup (STDIN_FILENO); |
346 | } |
381 | dup2 (tty, STDIN_FILENO); |
347 | |
382 | |
348 | ptytty_unix::~ptytty_unix () |
383 | utmp_pos = ttyslot (); |
349 | { |
|
|
350 | #if UTMP_SUPPORT |
|
|
351 | logout (); |
|
|
352 | #endif |
|
|
353 | put (); |
|
|
354 | } |
|
|
355 | |
384 | |
356 | void |
385 | dup2 (fd_stdin, STDIN_FILENO); |
357 | ptytty_unix::put () |
386 | close (fd_stdin); |
358 | { |
|
|
359 | if (name) |
|
|
360 | { |
|
|
361 | chmod (name, RESTORE_TTY_MODE); |
|
|
362 | chown (name, 0, ttyconf.gid); |
|
|
363 | } |
|
|
364 | |
|
|
365 | close_tty (); |
|
|
366 | |
|
|
367 | if (pty >= 0) |
|
|
368 | close (pty); |
|
|
369 | |
|
|
370 | free (name); |
|
|
371 | |
|
|
372 | pty = tty = -1; |
|
|
373 | name = 0; |
|
|
374 | } |
|
|
375 | |
|
|
376 | bool |
|
|
377 | ptytty_unix::get () |
|
|
378 | { |
|
|
379 | /* get master (pty) */ |
|
|
380 | if ((pty = get_pty (&tty, &name)) < 0) |
|
|
381 | return false; |
|
|
382 | |
|
|
383 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
384 | |
|
|
385 | /* get slave (tty) */ |
|
|
386 | if (tty < 0) |
|
|
387 | { |
|
|
388 | #ifndef NO_SETOWNER_TTYDEV |
|
|
389 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
390 | chmod (name, ttyconf.mode); |
|
|
391 | # ifdef HAVE_REVOKE |
|
|
392 | revoke (name); |
|
|
393 | # endif |
387 | # endif |
394 | #endif |
388 | #endif |
395 | |
389 | |
396 | if ((tty = get_tty (name)) < 0) |
|
|
397 | { |
|
|
398 | put (); |
|
|
399 | return false; |
|
|
400 | } |
|
|
401 | } |
|
|
402 | |
|
|
403 | return true; |
390 | return true; |
404 | } |
391 | } |
405 | |
392 | |