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Fix QA tests which use dd so that they specify posixly correct output

#! /bin/sh
# XFS QA Test No. 021
# $Id: 1.1 $
#
# xfs_db type attr test (pv 797508 linux-xfs & IRIX)
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2002 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.
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# 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 
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# For further information regarding this notice, see: 
# 
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#-----------------------------------------------------------------------
#
# creator
owner=dxm@sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=0	# success is the default!
# get standard environment, filters and checks
. ./common.rc
. ./common.filter

_cleanup()
{
	echo "*** unmount"
	umount $SCRATCH_MNT 2>/dev/null
	rm -f $tmp.*
}
trap "_cleanup; exit \$status" 0 1 2 3 15

_attr()
{
	attr $* 2>$tmp.err >$tmp.out
	exit=$?
	sed \
	    -e "s#$SCRATCH_MNT[^ .:]*#<TESTFILE>#g" \
	    -e "s#$tmp[^ :]*#<TMPFILE>#g;" \
		$tmp.out
	sed \
	    -e "s#$SCRATCH_MNT[^ .:]*#<TESTFILE>#g" \
	    -e "s#$tmp[^ :]*#<TMPFILE>#g;" \
		$tmp.err 1>&2
	return $exit
}

_getfattr()
{
	getfattr $* 2>$tmp.err >$tmp.out
	exit=$?
	sed \
	    -e "s#$SCRATCH_MNT[^ .:]*#<TESTFILE>#g" \
	    -e "s#$tmp[^ :]*#<TMPFILE>#g;" \
		$tmp.out
	sed \
	    -e "s#$SCRATCH_MNT[^ .:]*#<TESTFILE>#g" \
	    -e "s#$tmp[^ :]*#<TMPFILE>#g;" \
		$tmp.err 1>&2
	return $exit
}

# real QA test starts here
_require_scratch

rm -f $seq.full
umount $SCRATCH_DEV >/dev/null 2>&1

echo "*** mkfs"
_scratch_mkfs_xfs >/dev/null \
	|| _fail "mkfs failed"

echo "*** mount FS"
_scratch_mount >/dev/null \
	|| _fail "mount failed"

testfile=$SCRATCH_MNT/testfile
echo "*** make test file 1"

touch $testfile.1
echo "v1" | _attr -s "a1" $testfile.1 >/dev/null
echo "v2--" | _attr -s "a2--" $testfile.1 >/dev/null
_getfattr --absolute-names $testfile.1
inum_1=`ls -li $testfile.1 | $AWK_PROG '{ print $1 }'`

echo "*** make test file 2"

touch $testfile.2
echo "value_1" | _attr -s "a1" $testfile.2 >/dev/null
echo "value_2" | _attr -s "a2-----" $testfile.2 >/dev/null
( echo start; POSIXLY_CORRECT=yes dd if=/dev/zero bs=65525 count=1; echo end )\
	| _attr -s "a3" $testfile.2 >/dev/null
_getfattr --absolute-names $testfile.2

# print name and size from 1st line of output
_attr -g "a3" $testfile.2 > $tmp.hahahahaplonk
head -1 $tmp.hahahahaplonk
# NOTE:
# Above goo works around some truly bizzaro sh/sed/head interaction
# for some versions of these tools (fails on Redhat 7+, 6.2 worked)

# print out the rest of the data apart from the header
# the size is +1 for an extra \n at the end
echo -n "size of attr value = "
_attr -g "a3" $testfile.2 | tail -3 | wc -c
echo ""

inum_2=`ls -li $testfile.2 | $AWK_PROG '{ print $1 }'`
	
echo "*** unmount FS"
umount $SCRATCH_DEV >>$seq.full 2>&1 \
	|| _fail "umount failed"

echo "*** dump attributes (1)"

xfs_db -r -c "inode $inum_1" -c "print a.sfattr" $SCRATCH_DEV

echo "*** dump attributes (2)"

xfs_db -r -c "inode $inum_2" -c "a a.bmx[0].startblock" -c print $SCRATCH_DEV \
	| perl -ne '
s/^(hdr.firstused =) (\d+)/\1 FIRSTUSED/;
s/^(hdr.freemap\[0-2] = \[base,size]).*/\1 [FREEMAP..]/;
s/^(entries\[0-2] = \[hashval,nameidx,incomplete,root,local]).*/\1 [ENTRIES..]/;
	print;'

echo "*** done"
exit