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d6ee26ad02
This reflects failure to determine the pathname of the new directory in the exit status (1). Normally, cd returns successfully if it did chdir() and the call was successful. In POSIX, -e only has meaning with -P; because our -L is not entirely compliant and may fall back to -P mode, -e has some effect with -L as well.
38 lines
1,016 B
Text
38 lines
1,016 B
Text
# $FreeBSD$
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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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