ort for additional compression or encryption
    methods. This may be revised in a later release of libzip.</p>
<p class="Pp">On success, the layered source takes ownership of
    <var class="Ar">source</var>. The caller should not free it.</p>
<p class="Pp">The interaction with the lower layer depends on the command:</p>
<section class="Ss">
<h2 class="Ss" id="ZIP_SOURCE_ACCEPT_EMPTY"><a class="permalink" href="#ZIP_SOURCE_ACCEPT_EMPTY"><code class="Dv">ZIP_SOURCE_ACCEPT_EMPTY</code></a></h2>
<p class="Pp"