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Comparing libptytty/src/ptytty.C (file contents):
Revision 1.33 by ayin, Thu Dec 13 14:42:33 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>
34#include <csignal> 34#include <csignal>
35 35
36#include <sys/types.h> 36#include <sys/types.h>
37#include <sys/stat.h>
37#include <unistd.h> 38#include <unistd.h>
38#include <fcntl.h> 39#include <fcntl.h>
39 40
40#ifdef HAVE_SYS_IOCTL_H 41#ifdef HAVE_SYS_IOCTL_H
41# include <sys/ioctl.h> 42# include <sys/ioctl.h>
42#endif 43#endif
43#if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) 44#if defined(HAVE_SYS_STROPTS_H)
44# include <sys/stropts.h> /* for I_PUSH */ 45# include <sys/stropts.h> /* for I_PUSH */
45#endif 46#endif
46#ifdef HAVE_ISASTREAM 47#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
47# include <stropts.h> 48# include <stropts.h>
48#endif 49#endif
49#if defined(HAVE_PTY_H) 50#if defined(HAVE_PTY_H)
50# include <pty.h> 51# include <pty.h>
51#elif defined(HAVE_LIBUTIL_H) 52#elif defined(HAVE_LIBUTIL_H)
… …
77 int pfd; 78 int pfd;
78 79
79# if defined(HAVE_GETPT) 80# if defined(HAVE_GETPT)
80 pfd = getpt(); 81 pfd = getpt();
81# elif defined(HAVE_POSIX_OPENPT) 82# elif defined(HAVE_POSIX_OPENPT)
82 pfd = posix_openpt (O_RDWR); 83 pfd = posix_openpt (O_RDWR | O_NOCTTY);
83# else 84# else
85# ifdef _AIX
84 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
85# endif 90# endif
86 91
87 if (pfd >= 0) 92 if (pfd >= 0)
88 { 93 {
89 if (grantpt (pfd) == 0 /* change slave permissions */ 94 if (grantpt (pfd) == 0 /* change slave permissions */
… …
130 slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 135 slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
131 136
132 if (slave != NULL) 137 if (slave != NULL)
133 { 138 {
134 *ttydev = strdup (slave); 139 *ttydev = strdup (slave);
135 return pfd;
136 }
137
138 return -1;
139 }
140
141#elif defined(HAVE_DEV_PTC)
142
143 static int
144 get_pty (int *fd_tty, char **ttydev)
145 {
146 int pfd;
147
148 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
149 {
150 *ttydev = strdup (ttyname (pfd));
151 return pfd;
152 }
153
154 return -1;
155 }
156
157#elif defined(HAVE_DEV_CLONE)
158
159 static int
160 get_pty (int *fd_tty, char **ttydev)
161 {
162 int pfd;
163
164 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
165 {
166 *ttydev = strdup (ptsname (pfd));
167 return pfd; 140 return pfd;
168 } 141 }
169 142
170 return -1; 143 return -1;
171 } 144 }
… …
228control_tty (int fd_tty) 201control_tty (int fd_tty)
229{ 202{
230 int fd; 203 int fd;
231 204
232 setsid (); 205 setsid ();
233
234#if defined(HAVE_DEV_PTMX) && defined(I_PUSH)
235 /*
236 * Push STREAMS modules:
237 * ptem: pseudo-terminal hardware emulation module.
238 * ldterm: standard terminal line discipline.
239 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
240 *
241 * After we push the STREAMS modules, the first open () on the slave side
242 * (i.e. the next section between the dashes giving us "tty opened OK")
243 * should make the "ptem" (or "ldterm" depending upon either which OS
244 * version or which set of manual pages you have) module give us a
245 * controlling terminal. We must already have close ()d the master side
246 * fd in this child process before we push STREAMS modules on because the
247 * documentation is really unclear about whether it is any close () on
248 * the master side or the last close () - i.e. a proper STREAMS dismantling
249 * close () - on the master side which causes a hang up to be sent
250 * through - Geoff Wing
251 */
252# ifdef HAVE_ISASTREAM
253 if (isastream (fd_tty) == 1)
254# endif
255 {
256 ioctl (fd_tty, I_PUSH, "ptem");
257 ioctl (fd_tty, I_PUSH, "ldterm");
258 ioctl (fd_tty, I_PUSH, "ttcompat");
259 }
260#endif
261 206
262#ifdef TIOCSCTTY 207#ifdef TIOCSCTTY
263 ioctl (fd_tty, TIOCSCTTY, NULL); 208 ioctl (fd_tty, TIOCSCTTY, NULL);
264#else 209#else
265 fd = open (ttyname (fd_tty), O_RDWR); 210 fd = open (ttyname (fd_tty), O_RDWR);
… …
404 put (); 349 put ();
405 return false; 350 return false;
406 } 351 }
407 } 352 }
408 353
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
409 return true; 381 return true;
410} 382}
411 383

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