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