1 /* Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
26 /* Prefix for master pseudo terminal nodes. */
27 #define _PATH_PTY "/dev/pty"
29 /* Letters indicating a series of pseudo terminals. */
31 #define PTYNAME1 "pqrsPQRS"
33 const char __libc_ptyname1[] attribute_hidden = PTYNAME1;
35 /* Letters indicating the position within a series. */
37 #define PTYNAME2 "0123456789abcdefghijklmnopqrstuv";
39 const char __libc_ptyname2[] attribute_hidden = PTYNAME2;
41 /* Open a master pseudo terminal and return its file descriptor. */
45 char buf[sizeof (_PATH_PTY) + 2];
49 s = mempcpy (buf, _PATH_PTY, sizeof (_PATH_PTY) - 1);
50 /* s[0] and s[1] will be filled in the loop. */
53 for (p = __libc_ptyname1; *p != '\0'; ++p)
57 for (q = __libc_ptyname2; *q != '\0'; ++q)
63 fd = open (buf, O_RDWR);
75 #endif /* __USE_BSD */