system-ioctl.h

gnu tar 源码包。 tar 软件是 Unix 系统下的一个打包软件

/* System dependent definitions for GNU tar's use of ioctl macros.

   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003,
   2004, 2005, 2006, 2007 Free Software Foundation, Inc.

   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; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* This is a real challenge to properly get MTIO* symbols :-(.  ISC uses
   <sys/gentape.h>.  SCO and BSDi uses <sys/tape.h>; BSDi also requires
   <sys/tprintf.h> and <sys/device.h> for defining tp_dev and tpr_t.  It
   seems that the rest use <sys/mtio.h>, which itself requires other files,
   depending on systems.  Pyramid defines _IOW in <sgtty.h>, for example.  */

#if HAVE_SYS_GENTAPE_H
# include <sys/gentape.h>
#else
# if HAVE_SYS_TAPE_H
#  if HAVE_SYS_DEVICE_H
#   include <sys/device.h>
#  endif
#  if HAVE_SYS_PARAM_H
#   include <sys/param.h>
#  endif
#  if HAVE_SYS_BUF_H
#   include <sys/buf.h>
#  endif
#  if HAVE_SYS_TPRINTF_H
#   include <sys/tprintf.h>
#  endif
#  include <sys/tape.h>
# else
#  if HAVE_SYS_MTIO_H
#   include <sys/ioctl.h>
#   if HAVE_SGTTY_H
#    include <sgtty.h>
#   endif
#   if HAVE_SYS_IO_TRIOCTL_H
#    include <sys/io/trioctl.h>
#   endif
#   include <sys/mtio.h>
#  endif
# endif
#endif