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Add xfs_io into xfsprogs, an xfs_db-alike program for the XFS IO path
which knows about direct IO, space preallocation, realtime files, etc
which the usual tools like dd don't unfortunately.  This is a fixed-up
version of a hacked tool that I found useful for coding, debugging and
testing unwritten extents; hopefully it'll be useful for realtime too.

#!/bin/sh -f
#
# Copyright (c) 2003 Silicon Graphics, Inc.  All Rights Reserved.
# 
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
# 
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# 
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like.  Any license provided herein, whether implied or
# otherwise, applies only to this software file.  Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
# 
# You should have received a copy of the GNU General Public License along
# with this program; if not, write the Free Software Foundation, Inc., 59
# Temple Place - Suite 330, Boston MA 02111-1307, USA.
# 
# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
# Mountain View, CA  94043, or:
# 
# http://www.sgi.com 
# 
# For further information regarding this notice, see: 
# 
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#

OPTS=""
VERSION=false
USAGE="Usage: xfs_bmap [-adlpvV] [-n nx] file..."

while getopts "adln:pvV" c
do
	case $c in
	a)	OPTS=$OPTS" -a";;
	d)	OPTS=$OPTS" -d";;
	l)	OPTS=$OPTS" -l";;
	n)	OPTS=$OPTS" '-n "$OPTARG"'";;
	p)	OPTS=$OPTS" -p";;
	v)	OPTS=$OPTS" -v";;
	V)	VERSION=true;;
	\?)	echo $USAGE 1>&2
		exit 2
		;;
	esac
done
$VERSION && xfs_io -p xfs_bmap -V

set -- extra $@
shift $OPTIND

while [ "$1" != "" ]
do
	eval xfs_io -r -p xfs_bmap -c 'bmap $OPTS' $1
	status=$?
	[ $status -ne 0 ] && exit $status
	shift $OPTIND
done
exit 0