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<title>ZIP_SOURCE_ZIP(3)</title>
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<td class="head-ltitle">ZIP_SOURCE_ZIP(3)</td>
<td class="head-vol">Library Functions Manual</td>
<td class="head-rtitle">ZIP_SOURCE_ZIP(3)</td>
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<h1 class="Sh" id="NAME">NAME</h1>
<b class="Nm">zip_source_zip</b> &#8212; <span class="Nd">create data source
from zip file</span>
<h1 class="Sh" id="LIBRARY">LIBRARY</h1>
libzip (-lzip)
<h1 class="Sh" id="SYNOPSIS">SYNOPSIS</h1>
<b class="In">#include &lt;<a class="In">zip.h</a>&gt;</b>
<div class="Pp"></div>
<var class="Ft">zip_source_t *</var>
<br/>
<b class="Fn">zip_source_zip</b>(<var class="Fa" style="white-space: nowrap;">zip_t
*archive</var>, <var class="Fa" style="white-space: nowrap;">zip_t
*srcarchive</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t
srcidx</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t
flags</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>);
<h1 class="Sh" id="DESCRIPTION">DESCRIPTION</h1>
The function <b class="Fn">zip_source_zip</b>() creates a zip source from a file
in a zip archive. The <var class="Ar">srcarchive</var> argument is the (open)
zip archive containing the source zip file at index
<var class="Ar">srcidx</var>. <var class="Ar">len</var> bytes from offset
<var class="Ar">start</var> will be used in the zip_source. If
<var class="Ar">len</var> is 0 or -1, the rest of the file, starting from
<var class="Ar">start</var>, is used. If <var class="Ar">start</var> is zero
and <var class="Ar">len</var> is -1, the whole file will be copied without
decompressing it.
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Supported flags are:
<dl class="Bl-tag" style="margin-left: 21.00ex;">
<dt class="It-tag" style="margin-left: -21.00ex;">&#160;</dt>
<dd class="It-tag">&#160;</dd>
<dt class="It-tag" style="margin-left: -21.00ex;"><code class="Dv">ZIP_FL_UNCHANGED</code></dt>
<dd class="It-tag">Try to get the original data without any changes that may
have been made to <var class="Ar">srcarchive</var> after opening it.</dd>
<dt class="It-tag" style="margin-left: -21.00ex;">&#160;</dt>
<dd class="It-tag">&#160;</dd>
<dt class="It-tag" style="margin-left: -21.00ex;"><code class="Dv">ZIP_FL_RECOMPRESS</code></dt>
<dd class="It-tag">When adding the data from <var class="Ar">srcarchive</var>,
re-compress it using the current settings instead of copying the
compressed data.</dd>
</dl>
<h1 class="Sh" id="RETURN_VALUES">RETURN VALUES</h1>
Upon successful completion, the created source is returned. Otherwise,
<code class="Dv">NULL</code> is returned and the error code in
<var class="Ar">archive</var> is set to indicate the error.
<h1 class="Sh" id="ERRORS">ERRORS</h1>
<b class="Fn">zip_source_zip</b>() fails if:
<dl class="Bl-tag" style="margin-left: 17.00ex;">
<dt class="It-tag" style="margin-left: -17.00ex;">&#160;</dt>
<dd class="It-tag">&#160;</dd>
<dt class="It-tag" style="margin-left: -17.00ex;">[<code class="Er">ZIP_ER_CHANGED</code>]</dt>
<dd class="It-tag">Unchanged data was requested, but it is not available.</dd>
<dt class="It-tag" style="margin-left: -17.00ex;">&#160;</dt>
<dd class="It-tag">&#160;</dd>
<dt class="It-tag" style="margin-left: -17.00ex;">[<code class="Er">ZIP_ER_INVAL</code>]</dt>
<dd class="It-tag"><var class="Ar">srcarchive</var>,
<var class="Ar">srcidx</var>, <var class="Ar">start</var>, or
<var class="Ar">len</var> are invalid.</dd>
<dt class="It-tag" style="margin-left: -17.00ex;">&#160;</dt>
<dd class="It-tag">&#160;</dd>
<dt class="It-tag" style="margin-left: -17.00ex;">[<code class="Er">ZIP_ER_MEMORY</code>]</dt>
<dd class="It-tag">Required memory could not be allocated.</dd>
</dl>
Additionally, it can return all error codes from
<b class="Fn">zip_stat_index</b>() and <b class="Fn">zip_fopen_index</b>().
<h1 class="Sh" id="SEE_ALSO">SEE ALSO</h1>
<a class="Xr" href="libzip.html">libzip(3)</a>,
<a class="Xr" href="zip_add.html">zip_add(3)</a>,
<a class="Xr" href="zip_replace.html">zip_replace(3)</a>,
<a class="Xr" href="zip_source.html">zip_source(3)</a>
<h1 class="Sh" id="HISTORY">HISTORY</h1>
<b class="Fn">zip_source_zip</b>() was added in libzip 1.0.
<h1 class="Sh" id="AUTHORS">AUTHORS</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;</div>
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<td class="foot-date">December 18, 2017</td>
<td class="foot-os">NetBSD 8.99.14</td>
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