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+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* Internal constants used by the pseudoterminal handling code. */
+
+#ifndef _PTY_INTERNAL_H
+#define _PTY_INTERNAL_H 1
+
+/* Length of a buffer to hold a pty name. */
+#define PTYNAMELEN 15 /* "/dev/pts/65535$" */
+
+/* Which group should pty slaves belong to: */
+#define TTY_GROUP "tty"
+
+/* Communication between grantpt and pt_chown. */
+#define PTY_FD 3
+enum /* failure modes */
+{
+ FAIL_EBADF = 1,
+ FAIL_EINVAL,
+ FAIL_EACCES,
+ FAIL_EXEC
+};
+
+#endif