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|
#! /bin/sh
# FS QA Test No. 005
#
# Test symlinks & ELOOP
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2004 Silicon Graphics, 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
#
#-----------------------------------------------------------------------
#
# creator
owner=dxm@sgi.com
#
# Note1: On Linux, ELOOP limit used to be 32 but changed to 8, and lately
# its become 5. Who knows what it might be next.
# Note2: On IRIX, the limit is around the 30 mark.
#
# What we are looking for here is: no panic due to blowing the stack;
# and that the ELOOP error code is returned at some point (the actual
# limit point is unimportant, just checking that we do hit it).
#
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=0 # success is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd $testdir
rm -f symlink_{0,1,2,3}{0,1,2,3,4,5,6,7,8,9} symlink_self empty_file
cd /
_cleanup_testdir
}
_touch()
{
# On IRIX: Too many symbolic links in path name traversal
# On Linux: Too many levels of symbolic links
touch $@ 2>&1 | grep -q 'Too many.*symbolic links'
if [ $? -eq 0 ]; then
echo "ELOOP returned. Good."
else
echo "No ELOOP? Unexpected!"
fi
}
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
# real QA test starts here
_supported_fs generic
# IRIX UDF does not support symlinks
if [ $FSTYP == 'udf' ]; then
_supported_os Linux
else
_supported_os Linux IRIX
fi
_setup_testdir
cd $testdir
o=empty_file
touch $o
for f in symlink_{0,1,2,3}{0,1,2,3,4,5,6,7,8,9}
do
ln -s $o $f
o=$f
done
ln -s symlink_self symlink_self
echo "*** touch deep symlinks"
echo ""
_touch symlink_{0,1,2,3}{0,1,2,3,4,5,6,7,8,9}
echo ""
echo "*** touch recusive symlinks"
echo ""
_touch symlink_self
exit
|
