1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* Copyright (c) 2008, 2009
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Micah Cowan (micah@cowan.name)
* Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
* Copyright (c) 1993-2002, 2003, 2005, 2006, 2007
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Copyright (c) 1987 Oliver Laumann
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING); if not, see
* https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
****************************************************************
*/
#include "config.h"
#include "pty.h"
#include <sys/ioctl.h>
#include "screen.h"
#if defined(HAVE_PTY_H)
# include <pty.h>
#endif
#if defined(HAVE_UTIL_H)
# include <util.h>
#endif
#if defined(HAVE_LIBUTIL_H)
# include <libutil.h>
#endif
int pty_preopen = 0;
/***************************************************************/
int OpenPTY(char **ttyn)
{
static char TtyName[32];
int f, s;
if (openpty(&f, &s, TtyName, NULL, NULL) != 0)
return -1;
close(s);
tcflush(f, TCIOFLUSH);
#if defined(LOCKPTY) && defined(TIOCEXCL) && defined(TIOCNXCL)
(void)ioctl(f, TIOCEXCL, NULL);
#endif
pty_preopen = 1;
*ttyn = TtyName;
return f;
}
int ClosePTY(int fd)
{
#if defined(LOCKPTY) && defined(TIOCEXCL) && defined(TIOCNXCL)
(void)ioctl(fd, TIOCNXCL, NULL);
#endif
return close(fd);
}
|
