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74 lines
2.3 KiB
Bash
Executable File
74 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# Ensure that the size of a long-named-symlink is > 0.
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# Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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if test "$VERBOSE" = yes; then
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set -x
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du --version
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fi
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pwd=`pwd`
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t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
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trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
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trap '(exit $?); exit $?' 1 2 13 15
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framework_failure=0
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mkdir -p $tmp || framework_failure=1
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cd $tmp || framework_failure=1
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# Determine if `.' is on a local (would non-NFS be sufficient?) file system.
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# On at least some NFS implementations, symlinks never take up space,
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df --local . | tail -n +2 > tmp
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# So if this is a non-local file system, skip the test.
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if test -s tmp; then
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: # Ok.
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else
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echo "$0: skipping this test, since \`.' is on a non-local file system" 1>&2
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(exit 77); exit 77
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fi
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df --type=xfs . | tail -n +2 > tmp
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if test -s tmp; then
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# At least on Irix-6.5.19, when using an xfs file system,
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# each created symlink (name lengths up to 255) would have a size of `0'.
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echo "$0: skipping this test, since \`.' is on an XFS file system" 1>&2
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(exit 77); exit 77
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fi
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if test $framework_failure = 1; then
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echo "$0: failure in testing framework" 1>&2
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(exit 1); exit 1
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fi
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fail=0
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symlink_name_lengths='1 15 16 31 32 59 60 63 64 127 128 255 256 511 512 1024'
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for len in $symlink_name_lengths; do
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name=`seq 1 $len|tr -c x y |head -c$len`
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# Record the names of symlinks that are successfully created.
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ln -fs $name $len > /dev/null 2>&1 \
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&& symlinks="$symlinks $len"
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done
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du -a $symlinks > out || fail=1
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# Require that at least one of these symlinks has a non-zero size.
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grep '^[1-9]' out > /dev/null || fail=1
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(exit $fail); exit $fail
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