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<title>ZIP_SOURCE_WINDOW_CREATE(3)</title>
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<table class="head">
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<td class="head-ltitle">ZIP_SOURCE_WINDOW_CREATE(3)</td>
<td class="head-vol">Library Functions Manual</td>
<td class="head-rtitle">ZIP_SOURCE_WINDOW_CREATE(3)</td>
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<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">zip_source_window_create</code> —
<span class="Nd">create zip data source overlay</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="LIBRARY"><a class="permalink" href="#LIBRARY">LIBRARY</a></h1>
<p class="Pp">libzip (-lzip)</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
<<a class="In">zip.h</a>></code></p>
<p class="Pp"><var class="Ft">zip_source_t *</var>
<br/>
<code class="Fn">zip_source_window_create</code>(<var class="Fa" style="white-space: nowrap;">zip_source_t
*source</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t
start</var>, <var class="Fa" style="white-space: nowrap;">zip_int64_t
len</var>, <var class="Fa" style="white-space: nowrap;">zip_error_t
*error</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The
<a class="permalink" href="#zip_source_window_create"><code class="Fn" id="zip_source_window_create">zip_source_window_create</code></a>()
function create a zip source from an underlying zip source, restricting
access to a particular window starting at byte <var class="Ar">start</var>
and having size <var class="Ar">len</var>. If <var class="Ar">len</var> is
-1, the window spans to the end of the underlying source.</p>
<p class="Pp" id="zip_source_window"><a class="permalink" href="#zip_source_window"><code class="Fn">zip_source_window</code></a>()
and <code class="Fn">zip_source_window_create</code>() don't take ownership
of <var class="Ar">source</var>. The caller is responsible for freeing it.
(This is different to other layered sources.)</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
VALUES</a></h1>
<p class="Pp">Upon successful completion, the created source is returned.
Otherwise, <code class="Dv">NULL</code> is returned and the error code in
<var class="Ar">error</var> is set to indicate the error.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
<p class="Pp"><code class="Fn">zip_source_window_create</code>() fails if:</p>
<dl class="Bl-tag">
<dt id="ZIP_ER_INVAL">[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er">ZIP_ER_INVAL</code></a>]</dt>
<dd><var class="Ar">src</var> is <code class="Dv">NULL</code>; there is an
integer overflow adding <var class="Ar">start</var> and
<var class="Ar">len</var>; or <var class="Ar">len</var> is less than
-1.</dd>
<dt id="ZIP_ER_MEMORY">[<a class="permalink" href="#ZIP_ER_MEMORY"><code class="Er">ZIP_ER_MEMORY</code></a>]</dt>
<dd>Required memory could not be allocated.</dd>
</dl>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr" href="libzip.html">libzip(3)</a>,
<a class="Xr" href="zip_source.html">zip_source(5)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp"><code class="Fn">zip_source_window_create</code>() was added in
libzip 1.8.0.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp"><span class="An">Dieter Baron</span>
<<a class="Mt" href="mailto:dillo@nih.at">dillo@nih.at</a>> and
<span class="An">Thomas Klausner</span>
<<a class="Mt" href="mailto:wiz@gatalith.at">wiz@gatalith.at</a>></p>
</section>
</div>
<table class="foot">
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<td class="foot-date">April 29, 2021</td>
<td class="foot-os">NiH</td>
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