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<title>ZIP_FSEEK(3)</title>
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<table class="head">
<tr>
<td class="head-ltitle">ZIP_FSEEK(3)</td>
<td class="head-vol">Library Functions Manual</td>
<td class="head-rtitle">ZIP_FSEEK(3)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<code class="Nm">zip_fseek</code>, <code class="Nm">zip_file_is_seekable</code>
&#x2014;
<div class="Nd">seek in file</div>
</section>
<section class="Sh">
<h1 class="Sh" id="LIBRARY"><a class="permalink" href="#LIBRARY">LIBRARY</a></h1>
libzip (-lzip)
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<code class="In">#include &lt;<a class="In">zip.h</a>&gt;</code>
<p class="Pp"><var class="Ft">zip_int8_t</var>
<br/>
<code class="Fn">zip_fseek</code>(<var class="Fa" style="white-space: nowrap;">zip_file_t
*file</var>, <var class="Fa" style="white-space: nowrap;">zip_int64_t
offset</var>, <var class="Fa" style="white-space: nowrap;">int
whence</var>);</p>
<p class="Pp"><var class="Ft">int</var>
<br/>
<code class="Fn">zip_file_is_seekable</code>(<var class="Fa" style="white-space: nowrap;">zip_file_t
*file</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
The <code class="Fn">zip_fseek</code>() function seeks to the specified
<var class="Ar">offset</var> relative to <var class="Ar">whence</var>, just
like <a class="Xr" href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/fseek.html">fseek(3)</a>.
<p class="Pp"><code class="Nm">zip_fseek</code> only works on uncompressed
(stored), unencrypted data. When called on compressed or encrypted data it
will return an error.</p>
<p class="Pp">The <code class="Fn">zip_file_is_seekable</code>() function
returns 1 if a file is seekable.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
VALUES</a></h1>
If successful, <code class="Fn">zip_fseek</code>() returns 0. Otherwise, -1 is
returned.
<p class="Pp"><code class="Fn">zip_file_is_seekable</code>() returns 1 if a file
is seekable and 0 if not. On an invalid argument, it returns -1.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<a class="Xr" href="libzip.html">libzip(3)</a>,
<a class="Xr" href="zip_fclose.html">zip_fclose(3)</a>,
<a class="Xr" href="zip_fopen.html">zip_fopen(3)</a>,
<a class="Xr" href="zip_fread.html">zip_fread(3)</a>,
<a class="Xr" href="zip_ftell.html">zip_ftell(3)</a>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<code class="Fn">zip_fseek</code>() was added in libzip 1.2.0.
<code class="Fn">zip_file_is_seekable</code>() was added in libzip 1.9.0.
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<span class="An">Dieter Baron</span>
&lt;<a class="Mt" href="mailto:dillo@nih.at">dillo@nih.at</a>&gt; and
<span class="An">Thomas Klausner</span>
&lt;<a class="Mt" href="mailto:tk@giga.or.at">tk@giga.or.at</a>&gt;
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">November 13, 2021</td>
<td class="foot-os">NiH</td>
</tr>
</table>
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