2019-kvm-forum/2700-nbdkit-sh-for-testing.html

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   5 <h1>nbdkit sh plugin for testing</h1>
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   9 <pre>
  10 <b>#!/bin/bash</b>
  11
  12 <b>case</b> "$1" <b>in</b>
  13     <b>get_size)</b> echo 64M <b>;;</b>
  14     <b>pread</b>)
  15         if [ $4 -le 100000 ] &amp;&amp; [ $(( $4+$3 )) -gt 100000 ]; then
  16             echo EIO Bad block >&amp;2
  17             exit 1
  18         else
  19             dd if=/dev/zero count=$3 iflag=count_bytes
  20         fi <b>;;</b>
  21     <b>*)</b> exit 2 <b>;;</b>
  22 <b>esac</b>
  23 </pre>