apfstests/tests/generic/360

#! /bin/bash
# FS QA Test 360
#
# Test symlink to very long path, check symlink file contains correct path.
#
#-----------------------------------------------------------------------
# Copyright (c) 2016 Red Hat Inc.  All Rights Reserved.
#
# 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.
#
# 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.  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 the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------
#

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

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

rm -f $seqres.full

# real QA test starts here
_supported_fs generic
_supported_os Linux
_require_test

linkfile=$TEST_DIR/$seq.symlink
rm -f $linkfile

FNAME=$(perl -e 'print "a"x254')

# Create a symlink points to a very long path, so that the path could not be
# hold in inode
ln -s $FNAME/$FNAME/$FNAME/$FNAME $linkfile

# Check symlink contains the correct path.
# 1023 chars are a bit long for golden image output, compute the md5 checksum
readlink $linkfile | md5sum

# success, all done
status=0
exit