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    zip_file_extra_field_delete.mdoc -- delete extra field for file in zip
    Copyright (C) 2012-2017 Dieter Baron and Thomas Klausner

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    The authors can be contacted at <libzip@nih.at>

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   <title>ZIP_FILE_EXTRA_FIELD_DELETE(3)</title>
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 <table class="head">
   <tr>
     <td class="head-ltitle">ZIP_FILE_EXTRA_FIELD_DELETE(3)</td>
     <td class="head-vol">Library Functions Manual</td>
     <td class="head-rtitle">ZIP_FILE_EXTRA_FIELD_DELETE(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_delete</code>,
   <code class="Nm" title="Nm">zip_file_extra_field_delete_by_id</code> &#x2014;
 <div class="Nd" title="Nd">delete 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
   &lt;<a class="In" title="In">zip.h</a>&gt;</code>
 <div class="Pp"></div>
 <var class="Ft" title="Ft">int</var>
 <br/>
 <code class="Fn" title="Fn">zip_file_extra_field_delete</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_index</var>,
   <var class="Fa" title="Fa" style="white-space: nowrap;">zip_flags_t
   flags</var>);
 <div class="Pp"></div>
 <var class="Ft" title="Ft">int</var>
 <br/>
 <code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</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;">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_delete</code>() function
   deletes the extra field with 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.
 <div class="Pp"></div>
 If <var class="Ar" title="Ar">extra_field_index</var> is
   <code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code>, then all extra fields
   will be deleted.
 <div class="Pp"></div>
 The following <var class="Ar" title="Ar">flags</var> are supported:
 <div class="Bd-indent">
 <dl class="Bl-tag">
   <dt>&#x00A0;</dt>
   <dd>&#x00A0;</dd>
   <dt><a class="permalink" href="#ZIP_FL_CENTRAL"><code class="Dv" title="Dv" id="ZIP_FL_CENTRAL">ZIP_FL_CENTRAL</code></a></dt>
   <dd>Delete extra fields from the archive's central directory.</dd>
   <dt>&#x00A0;</dt>
   <dd>&#x00A0;</dd>
   <dt><a class="permalink" href="#ZIP_FL_LOCAL"><code class="Dv" title="Dv" id="ZIP_FL_LOCAL">ZIP_FL_LOCAL</code></a></dt>
   <dd>Delete extra fields from the local file headers.</dd>
 </dl>
 </div>
 <div class="Pp"></div>
 The <code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>()
   function deletes 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> (in other words, the
   <var class="Ar" title="Ar">extra_field_index</var><span class="No">'th</span>
   extra field with ID <var class="Ar" title="Ar">extra_field_id</var>) The other
   arguments are the same as for
   <code class="Fn" title="Fn">zip_file_extra_field_delete</code>()
   (<code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code> will delete all extra
   fields of the specified ID).
 <div class="Pp"></div>
 Please note that due to the library design, the index of an extra field may be
   different between central directory and local file headers. For this reason,
   it is not allowed to specify both
   <code class="Dv" title="Dv">ZIP_FL_CENTRAL</code> and
   <code class="Dv" title="Dv">ZIP_FL_LOCAL</code> in
   <var class="Ar" title="Ar">flags</var>, except when deleting all extra fields
   (i.e., <var class="Ar" title="Ar">extra_field_index</var> being
   <code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code>).
 <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_delete</code>() and
   <code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>() fail
   if:
 <dl class="Bl-tag">
   <dt>&#x00A0;</dt>
   <dd>&#x00A0;</dd>
   <dt>[<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_get.html">zip_file_extra_field_get(3)</a>,
   <a class="Xr" title="Xr" href="zip_file_extra_field_set.html">zip_file_extra_field_set(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_delete</code>() and
   <code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>() were
   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>
   &lt;<a class="Mt" title="Mt" href="mailto:dillo@nih.at">dillo@nih.at</a>&gt;
   and <span class="An" title="An">Thomas Klausner</span>
   &lt;<a class="Mt" title="Mt" href="mailto:tk@giga.or.at">tk@giga.or.at</a>&gt;</div>
 <table class="foot">
   <tr>
     <td class="foot-date">December 18, 2017</td>
     <td class="foot-os">NetBSD 8.99.27</td>
   </tr>
 </table>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<!-- This is an automatically generated file. Do not edit.
	zip_file_extra_field_delete.mdoc -- delete 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 <libzip@nih.at>

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in
	the documentation and/or other materials provided with the
	distribution.
	3. The names of the authors may not be used to endorse or promote
	products derived from this software without specific prior
	written permission.

	THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
	OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
	GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	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.
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	<head>
	<meta charset="utf-8"/>
	<link rel="stylesheet" href="../nih-man.css" type="text/css" media="all"/>
	<title>ZIP_FILE_EXTRA_FIELD_DELETE(3)</title>
	</head>
	<body>
	<table class="head">
	<tr>
	<td class="head-ltitle">ZIP_FILE_EXTRA_FIELD_DELETE(3)</td>
	<td class="head-vol">Library Functions Manual</td>
	<td class="head-rtitle">ZIP_FILE_EXTRA_FIELD_DELETE(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_delete</code>,
	<code class="Nm" title="Nm">zip_file_extra_field_delete_by_id</code> —
	<div class="Nd" title="Nd">delete 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_delete</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_index</var>,
	<var class="Fa" title="Fa" style="white-space: nowrap;">zip_flags_t
	flags</var>);
	<div class="Pp"></div>
	<var class="Ft" title="Ft">int</var>
	<br/>
	<code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</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;">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_delete</code>() function
	deletes the extra field with 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.
	<div class="Pp"></div>
	If <var class="Ar" title="Ar">extra_field_index</var> is
	<code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code>, then all extra fields
	will be deleted.
	<div class="Pp"></div>
	The following <var class="Ar" title="Ar">flags</var> are supported:
	<div class="Bd-indent">
	<dl class="Bl-tag">
	<dt> </dt>
	<dd> </dd>
	<dt><a class="permalink" href="#ZIP_FL_CENTRAL"><code class="Dv" title="Dv" id="ZIP_FL_CENTRAL">ZIP_FL_CENTRAL</code></a></dt>
	<dd>Delete extra fields from the archive's central directory.</dd>
	<dt> </dt>
	<dd> </dd>
	<dt><a class="permalink" href="#ZIP_FL_LOCAL"><code class="Dv" title="Dv" id="ZIP_FL_LOCAL">ZIP_FL_LOCAL</code></a></dt>
	<dd>Delete extra fields from the local file headers.</dd>
	</dl>
	</div>
	<div class="Pp"></div>
	The <code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>()
	function deletes 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> (in other words, the
	<var class="Ar" title="Ar">extra_field_index</var><span class="No">'th</span>
	extra field with ID <var class="Ar" title="Ar">extra_field_id</var>) The other
	arguments are the same as for
	<code class="Fn" title="Fn">zip_file_extra_field_delete</code>()
	(<code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code> will delete all extra
	fields of the specified ID).
	<div class="Pp"></div>
	Please note that due to the library design, the index of an extra field may be
	different between central directory and local file headers. For this reason,
	it is not allowed to specify both
	<code class="Dv" title="Dv">ZIP_FL_CENTRAL</code> and
	<code class="Dv" title="Dv">ZIP_FL_LOCAL</code> in
	<var class="Ar" title="Ar">flags</var>, except when deleting all extra fields
	(i.e., <var class="Ar" title="Ar">extra_field_index</var> being
	<code class="Dv" title="Dv">ZIP_EXTRA_FIELD_ALL</code>).
	<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_delete</code>() and
	<code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>() fail
	if:
	<dl class="Bl-tag">
	<dt> </dt>
	<dd> </dd>
	<dt>[<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_get.html">zip_file_extra_field_get(3)</a>,
	<a class="Xr" title="Xr" href="zip_file_extra_field_set.html">zip_file_extra_field_set(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_delete</code>() and
	<code class="Fn" title="Fn">zip_file_extra_field_delete_by_id</code>() were
	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:dillo@nih.at">dillo@nih.at</a>>
	and <span class="An" title="An">Thomas Klausner</span>
	<<a class="Mt" title="Mt" href="mailto:tk@giga.or.at">tk@giga.or.at</a>></div>
	<table class="foot">
	<tr>
	<td class="foot-date">December 18, 2017</td>
	<td class="foot-os">NetBSD 8.99.27</td>
	</tr>
	</table>
	</body>
	</html>