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zip_file_extra_field_set.html
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<!DOCTYPE html>
<html>
<!-- This is an automatically generated file. Do not edit.
zip_file_extra_field_set.mdoc -- set extra field for file in zip
Copyright (C) 2012-2017 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP files.
The authors can be contacted at <[email protected]>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-->
<head>
<meta charset="utf-8"/>
<link rel="stylesheet" href="../nih-man.css" type="text/css" media="all"/>
<title>ZIP_FILE_EXTRA_FIELD_SET(3)</title>
</head>
<body>
<table class="head">
<tr>
<td class="head-ltitle">ZIP_FILE_EXTRA_FIELD_SET(3)</td>
<td class="head-vol">Library Functions Manual</td>
<td class="head-rtitle">ZIP_FILE_EXTRA_FIELD_SET(3)</td>
</tr>
</table>
<div class="manual-text">
<h1 class="Sh" title="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<code class="Nm" title="Nm">zip_file_extra_field_set</code> —
<div class="Nd" title="Nd">set extra field for file in zip</div>
<h1 class="Sh" title="Sh" id="LIBRARY"><a class="permalink" href="#LIBRARY">LIBRARY</a></h1>
libzip (-lzip)
<h1 class="Sh" title="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<code class="In" title="In">#include
<<a class="In" title="In">zip.h</a>></code>
<div class="Pp"></div>
<var class="Ft" title="Ft">int</var>
<br/>
<code class="Fn" title="Fn">zip_file_extra_field_set</code>(<var class="Fa" title="Fa" style="white-space: nowrap;">zip_t
*archive</var>,
<var class="Fa" title="Fa" style="white-space: nowrap;">zip_uint64_t
index</var>,
<var class="Fa" title="Fa" style="white-space: nowrap;">zip_uint16_t
extra_field_id</var>,
<var class="Fa" title="Fa" style="white-space: nowrap;">zip_uint16_t
extra_field_index</var>,
<var class="Fa" title="Fa" style="white-space: nowrap;">const zip_uint8_t
*extra_field_data</var>,
<var class="Fa" title="Fa" style="white-space: nowrap;">zip_uint16_t
len</var>, <var class="Fa" title="Fa" style="white-space: nowrap;">zip_flags_t
flags</var>);
<h1 class="Sh" title="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
The <code class="Fn" title="Fn">zip_file_extra_field_set</code>() function sets
the extra field with ID (two-byte signature)
<var class="Ar" title="Ar">extra_field_id</var> and index
<var class="Ar" title="Ar">extra_field_index</var> for the file at position
<var class="Ar" title="Ar">index</var> in the zip archive. The extra field's
data will be set to <var class="Ar" title="Ar">extra_field_data</var> and
length <var class="Ar" title="Ar">len</var>. If a new entry shall be appended,
set <var class="Ar" title="Ar">extra_field_index</var> to
<code class="Dv" title="Dv">ZIP_EXTRA_FIELD_NEW</code>.
<div class="Pp"></div>
At least one of the following <var class="Ar" title="Ar">flags</var> must be
set:
<div class="Bl-tag" style="margin-left: 6.00ex;">
<dl class="Bl-tag" style="margin-left: 22.20ex;">
<dt style="margin-left: -22.20ex;"> </dt>
<dd> </dd>
<dt style="margin-left: -22.20ex;"><a class="permalink" href="#ZIP_FL_CENTRAL"><code class="Dv" title="Dv" id="ZIP_FL_CENTRAL">ZIP_FL_CENTRAL</code></a></dt>
<dd>Set extra field in the archive's central directory.</dd>
<dt style="margin-left: -22.20ex;"> </dt>
<dd> </dd>
<dt style="margin-left: -22.20ex;"><a class="permalink" href="#ZIP_FL_LOCAL"><code class="Dv" title="Dv" id="ZIP_FL_LOCAL">ZIP_FL_LOCAL</code></a></dt>
<dd>Set extra field in the local file headers.</dd>
</dl>
</div>
<div class="Pp"></div>
Please note that the extra field IDs 0x0001 (ZIP64 extension), 0x6375 (Infozip
UTF-8 comment), and 0x7075 (Infozip UTF-8 file name) can not be set using
<code class="Fn" title="Fn">zip_file_extra_field_set</code>() since they are
set by <a class="Xr" title="Xr" href="libzip.html">libzip(3)</a> automatically
when needed.
<h1 class="Sh" title="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
VALUES</a></h1>
Upon successful completion 0 is returned. Otherwise, -1 is returned and the
error code in <var class="Ar" title="Ar">archive</var> is set to indicate the
error.
<h1 class="Sh" title="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
<code class="Fn" title="Fn">zip_file_extra_field_set</code>() fails if:
<dl class="Bl-tag" style="margin-left: 23.40ex;">
<dt style="margin-left: -23.40ex;"> </dt>
<dd> </dd>
<dt style="margin-left: -23.40ex;">[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er" title="Er" id="ZIP_ER_INVAL">ZIP_ER_INVAL</code></a>]</dt>
<dd>The extra field size is too large (ID and length need 4 bytes; the maximum
length of all extra fields for one file combined is 65536 bytes). This
error also occurs if <var class="Ar" title="Ar">extra_field_index</var> is
too large.</dd>
<dt style="margin-left: -23.40ex;"> </dt>
<dd> </dd>
<dt style="margin-left: -23.40ex;">[<a class="permalink" href="#ZIP_ER_MEMORY"><code class="Er" title="Er" id="ZIP_ER_MEMORY">ZIP_ER_MEMORY</code></a>]</dt>
<dd>Required memory could not be allocated.</dd>
<dt style="margin-left: -23.40ex;"> </dt>
<dd> </dd>
<dt style="margin-left: -23.40ex;">[<a class="permalink" href="#ZIP_ER_NOENT"><code class="Er" title="Er" id="ZIP_ER_NOENT">ZIP_ER_NOENT</code></a>]</dt>
<dd><var class="Ar" title="Ar">index</var> is not a valid file index in
<var class="Ar" title="Ar">archive</var>.</dd>
</dl>
<h1 class="Sh" title="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<a class="Xr" title="Xr" href="libzip.html">libzip(3)</a>,
<a class="Xr" title="Xr" href="zip_file_extra_field_delete.html">zip_file_extra_field_delete(3)</a>,
<a class="Xr" title="Xr" href="zip_file_extra_field_get.html">zip_file_extra_field_get(3)</a>,
<a class="Xr" title="Xr" href="zip_file_extra_fields_count.html">zip_file_extra_fields_count(3)</a>
<h1 class="Sh" title="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<code class="Fn" title="Fn">zip_file_extra_field_set</code>() was added in
libzip 0.11.
<h1 class="Sh" title="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<span class="An" title="An">Dieter Baron</span>
<<a class="Mt" title="Mt" href="mailto:[email protected]">[email protected]</a>>
and <span class="An" title="An">Thomas Klausner</span>
<<a class="Mt" title="Mt" href="mailto:[email protected]">[email protected]</a>></div>
<table class="foot">
<tr>
<td class="foot-date">December 18, 2017</td>
<td class="foot-os">NetBSD 8.99.16</td>
</tr>
</table>
</body>
</html>