Files
apfstests/tests/generic/005
T
Darrick J. Wong a860a167d8 common: kill _supported_os
fstests only supports Linux, so get rid of this unnecessary predicate.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2020-09-21 01:16:50 +08:00

75 lines
1.4 KiB
Bash
Executable File

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
#
# FS QA Test No. 005
#
# Test symlinks & ELOOP
#
#
# Note: On Linux, ELOOP limit used to be 32 but changed to 8, and lately
# its become 5. Who knows what it might be next.
#
# 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 $0`
seqres=$RESULT_DIR/$seq
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 $TEST_DIR
rm -f symlink_{0,1,2,3,4}{0,1,2,3,4,5,6,7,8,9} symlink_self empty_file
cd /
}
_touch()
{
touch $@ 2>&1 | grep -q 'Too many levels of 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
_require_test
_require_symlinks
cd $TEST_DIR
o=empty_file
touch $o
for f in symlink_{0,1,2,3,4}{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_{0,1,2,3,4}{0,1,2,3,4,5,6,7,8,9}
echo ""
echo "*** touch recusive symlinks"
echo ""
_touch symlink_self
exit