/* Internal defenitions and declarations for pseudo terminal functions.

   Copyright (C) 1998-2018 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 Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _PTY_PRIVATE_H

#define _PTY_PRIVATE_H 1

/* The group slave pseudo terminals belong to.  */

#define TTY_GROUP "tty"

/* The file descriptor connected to the master pseudo terminal.  */

#define PTY_FILENO 3

/* Path to the helper program that implements `grantpt' in user space.  */

#define _PATH_PT_CHOWN LIBEXECDIR "/pt_chown"

/* Test whether given TTY is really a Unix98 pseudo terminal.  */

/* #define unix98_pseudo_p(Dev) ... */

/* Exit codes for the helper program.  */

enum  /* failure modes */

{

  FAIL_EBADF = 1,

  FAIL_EINVAL,

  FAIL_EACCES,

  FAIL_EXEC,

  FAIL_ENOMEM

};

#endif /* pty-private.h  */