gative
    values must be cast to <var class="Ft">zip_uint32_t</var>.</p>
<p class="Pp">Further compression method specific flags might be added over
    time.</p>
<p class="Pp">The current compression method for a file in a zip archive can be
    determined using <a class="Xr" href="zip_stat.html">zip_stat(3)</a>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
Upon successful completion 0 is returned. Otherwise, -1 i