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#!/bin/sh
# Ensure dd treats `--' properly.
# Also ensure that iflag=noatime works.
tmp_in=dd-in.$$
tmp_out=dd-out.$$
if test "$VERBOSE" = yes; then
set -x
dd --version
fi
test_failure=0
echo data > $tmp_in || test_failure=1
if test $test_failure = 1; then
echo 'failure in testing framework'
exit 1
fi
dd if=$tmp_in of=$tmp_out > /dev/null 2>&1 || fail=1
cmp $tmp_in $tmp_out || fail=1
rm $tmp_out
dd -- if=$tmp_in of=$tmp_out > /dev/null 2>&1 || fail=1
cmp $tmp_in $tmp_out || fail=1
old_ls=`ls -u --full-time $tmp_in`
sleep 1
if dd iflag=noatime if=$tmp_in of=$tmp_out > /dev/null 2>&1; then
new_ls=`ls -u --full-time $tmp_in`
if test "x$old_ls" != "x$new_ls"; then
echo "dd iflag=noatime updated atime; O_NOATIME bug in your kernel?" >&2
fail=1
fi
fi
rm -f $tmp_in $tmp_out
exit $fail
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