39 lines
1016 B
Plaintext
39 lines
1016 B
Plaintext
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# $FreeBSD$
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# This test assumes that whatever mechanism cd -P uses to determine the
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# pathname to the current directory if it is longer than PATH_MAX requires
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# read permission on all parent directories. It also works if this
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# requirement always applies.
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set -e
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L=$(getconf PATH_MAX / 2>/dev/null) || L=4096
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[ "$L" -lt 100000 ] 2>/dev/null || L=4096
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L=$((L+100))
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T=$(mktemp -d ${TMPDIR:-/tmp}/sh-test.XXXXXX)
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trap 'chmod u+r ${T}; rm -rf ${T}' 0
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cd -Pe $T
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D=$(pwd)
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chmod u-r "$D"
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if [ -r "$D" ]; then
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# Running as root, cannot test.
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exit 0
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fi
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set +e
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while [ ${#D} -lt $L ]; do
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mkdir veryverylongdirectoryname || exit
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cd -Pe veryverylongdirectoryname 2>/dev/null
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r=$?
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[ $r -gt 1 ] && exit $r
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if [ $r -eq 1 ]; then
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# Verify that the directory was changed correctly.
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cd -Pe .. || exit
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[ "$(pwd)" = "$D" ] || exit
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# Verify that omitting -e results in success.
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cd -P veryverylongdirectoryname 2>/dev/null || exit
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exit 0
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fi
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D=$D/veryverylongdirectoryname
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done
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echo "cd -Pe never returned 1"
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exit 0
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