libc/stdlib/pty-private.h

   1 /* Internal defenitions and declarations for pseudo terminal functions.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _PTY_PRIVATE_H
  21 #define _PTY_PRIVATE_H 1
  22
  23 /* The group slave pseudo terminals belong to.  */
  24 #define TTY_GROUP "tty"
  25
  26 /* The file descriptor connected to the master pseudo terminal.  */
  27 #define PTY_FILENO 3
  28
  29 /* Path to the helper program that implements `grantpt' in user space.  */
  30 #define _PATH_PT_CHOWN "/sbin/pt_chown"
  31
  32 /* Exit codes for the helper program.  */
  33 enum  /* failure modes */
  34 {
  35   FAIL_EBADF = 1,
  36   FAIL_EINVAL,
  37   FAIL_EACCES,
  38   FAIL_EXEC
  39 };
  40
  41 #endif /* pty-private.h  */