| #! /bin/bash |
| # 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 |
| # |
| #----------------------------------------------------------------------- |
| # |
| |
| # |
| # 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_test_symlinks |
| |
| _supported_os Linux |
| |
| 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 |