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Comparing libptytty/src/ptytty.C (file contents):
Revision 1.34 by ayin, Fri Dec 14 09:51:32 2007 UTC vs.
Revision 1.41 by sf-exg, Fri Nov 11 15:11:18 2011 UTC

… …
5 * File: ptytty.C 5 * File: ptytty.C
6 *----------------------------------------------------------------------* 6 *----------------------------------------------------------------------*
7 * 7 *
8 * All portions of code are copyright by their respective author/s. 8 * All portions of code are copyright by their respective author/s.
9 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> 9 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
10 * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> 10 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
11 * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> 11 * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
12 * 12 *
13 * This program is free software; you can redistribute it and/or modify 13 * 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 14 * 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 15 * the Free Software Foundation; either version 2 of the License, or
… …
23 * You should have received a copy of the GNU General Public License 23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software 24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 *---------------------------------------------------------------------*/ 26 *---------------------------------------------------------------------*/
27 27
28#include "../config.h" 28#include "config.h"
29 29
30#include "ptytty.h" 30#include "ptytty.h"
31 31
32#include <cstdlib> 32#include <cstdlib>
33#include <cstring> 33#include <cstring>
… …
39#include <fcntl.h> 39#include <fcntl.h>
40 40
41#ifdef HAVE_SYS_IOCTL_H 41#ifdef HAVE_SYS_IOCTL_H
42# include <sys/ioctl.h> 42# include <sys/ioctl.h>
43#endif 43#endif
44#if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) 44#if defined(HAVE_SYS_STROPTS_H)
45# include <sys/stropts.h> /* for I_PUSH */ 45# include <sys/stropts.h> /* for I_PUSH */
46#endif 46#endif
47#ifdef HAVE_ISASTREAM 47#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
48# include <stropts.h> 48# include <stropts.h>
49#endif 49#endif
50#if defined(HAVE_PTY_H) 50#if defined(HAVE_PTY_H)
51# include <pty.h> 51# include <pty.h>
52#elif defined(HAVE_LIBUTIL_H) 52#elif defined(HAVE_LIBUTIL_H)
… …
78 int pfd; 78 int pfd;
79 79
80# if defined(HAVE_GETPT) 80# if defined(HAVE_GETPT)
81 pfd = getpt(); 81 pfd = getpt();
82# elif defined(HAVE_POSIX_OPENPT) 82# elif defined(HAVE_POSIX_OPENPT)
83 pfd = posix_openpt (O_RDWR); 83 pfd = posix_openpt (O_RDWR | O_NOCTTY);
84# else 84# else
85# ifdef _AIX
85 pfd = open (CLONE_DEVICE, O_RDWR | O_NOCTTY, 0); 86 pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0);
87# else
88 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
89# endif
86# endif 90# endif
87 91
88 if (pfd >= 0) 92 if (pfd >= 0)
89 { 93 {
90 if (grantpt (pfd) == 0 /* change slave permissions */ 94 if (grantpt (pfd) == 0 /* change slave permissions */
… …
131 slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 135 slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
132 136
133 if (slave != NULL) 137 if (slave != NULL)
134 { 138 {
135 *ttydev = strdup (slave); 139 *ttydev = strdup (slave);
136 return pfd;
137 }
138
139 return -1;
140 }
141
142#elif defined(HAVE_DEV_PTC)
143
144 static int
145 get_pty (int *fd_tty, char **ttydev)
146 {
147 int pfd;
148
149 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
150 {
151 *ttydev = strdup (ttyname (pfd));
152 return pfd;
153 }
154
155 return -1;
156 }
157
158#elif defined(HAVE_DEV_CLONE)
159
160 static int
161 get_pty (int *fd_tty, char **ttydev)
162 {
163 int pfd;
164
165 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
166 {
167 *ttydev = strdup (ptsname (pfd));
168 return pfd; 140 return pfd;
169 } 141 }
170 142
171 return -1; 143 return -1;
172 } 144 }
… …
229control_tty (int fd_tty) 201control_tty (int fd_tty)
230{ 202{
231 int fd; 203 int fd;
232 204
233 setsid (); 205 setsid ();
234
235#if defined(HAVE_DEV_PTMX) && defined(I_PUSH)
236 /*
237 * Push STREAMS modules:
238 * ptem: pseudo-terminal hardware emulation module.
239 * ldterm: standard terminal line discipline.
240 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
241 *
242 * After we push the STREAMS modules, the first open () on the slave side
243 * (i.e. the next section between the dashes giving us "tty opened OK")
244 * should make the "ptem" (or "ldterm" depending upon either which OS
245 * version or which set of manual pages you have) module give us a
246 * controlling terminal. We must already have close ()d the master side
247 * fd in this child process before we push STREAMS modules on because the
248 * documentation is really unclear about whether it is any close () on
249 * the master side or the last close () - i.e. a proper STREAMS dismantling
250 * close () - on the master side which causes a hang up to be sent
251 * through - Geoff Wing
252 */
253# ifdef HAVE_ISASTREAM
254 if (isastream (fd_tty) == 1)
255# endif
256 {
257 ioctl (fd_tty, I_PUSH, "ptem");
258 ioctl (fd_tty, I_PUSH, "ldterm");
259 ioctl (fd_tty, I_PUSH, "ttcompat");
260 }
261#endif
262 206
263#ifdef TIOCSCTTY 207#ifdef TIOCSCTTY
264 ioctl (fd_tty, TIOCSCTTY, NULL); 208 ioctl (fd_tty, TIOCSCTTY, NULL);
265#else 209#else
266 fd = open (ttyname (fd_tty), O_RDWR); 210 fd = open (ttyname (fd_tty), O_RDWR);
… …
405 put (); 349 put ();
406 return false; 350 return false;
407 } 351 }
408 } 352 }
409 353
354#if defined(I_PUSH)
355 /*
356 * Push STREAMS modules:
357 * ptem: pseudo-terminal hardware emulation module.
358 * ldterm: standard terminal line discipline.
359 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
360 *
361 * After we push the STREAMS modules, the first open () on the slave side
362 * should make the "ptem" (or "ldterm" depending upon either which OS
363 * version or which set of manual pages you have) module give us a
364 * controlling terminal. We must already have close ()d the master side
365 * fd in this child process before we push STREAMS modules on because the
366 * documentation is really unclear about whether it is any close () on
367 * the master side or the last close () - i.e. a proper STREAMS dismantling
368 * close () - on the master side which causes a hang up to be sent
369 * through - Geoff Wing
370 */
371#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
372 if (isastream (tty) == 1)
373# endif
374 {
375 ioctl (tty, I_PUSH, "ptem");
376 ioctl (tty, I_PUSH, "ldterm");
377 ioctl (tty, I_PUSH, "ttcompat");
378 }
379#endif
380
410 return true; 381 return true;
411} 382}
412 383

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