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<!DOCTYPE html>
<html>
<!-- This is an automatically generated file. Do not edit.
zip_file_set_comment.mdoc -- set comment for file in zip
Copyright (C) 2006-2021 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP files.
The authors can be contacted at <info@libzip.org>
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<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<link rel="stylesheet" href="../nih-man.css" type="text/css" media="all"/>
<title>ZIP_FILE_SET_COMMENT(3)</title>
</head>
<body>
<table class="head">
<tr>
<td class="head-ltitle">ZIP_FILE_SET_COMMENT(3)</td>
<td class="head-vol">Library Functions Manual</td>
<td class="head-rtitle">ZIP_FILE_SET_COMMENT(3)</td>
</tr>
</table>
<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_file_set_comment</code> —
<span class="Nd">set comment for file in zip</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">int</var>
<br/>
<code class="Fn">zip_file_set_comment</code>(<var class="Fa" style="white-space: nowrap;">zip_t
*archive</var>, <var class="Fa" style="white-space: nowrap;">zip_uint64_t
index</var>, <var class="Fa" style="white-space: nowrap;">const char
*comment</var>, <var class="Fa" style="white-space: nowrap;">zip_uint16_t
len</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t
flags</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_file_set_comment"><code class="Fn" id="zip_file_set_comment">zip_file_set_comment</code></a>()
function sets the comment for the file at position
<var class="Ar">index</var> in the zip archive to
<var class="Ar">comment</var> of length <var class="Ar">len</var>. If
<var class="Ar">comment</var> is <code class="Dv">NULL</code> and
<var class="Ar">len</var> is 0, the file comment will be removed. The
<var class="Ar">flags</var> argument can be any of:</p>
<dl class="Bl-tag">
<dt id="ZIP_FL_ENC_GUESS"><a class="permalink" href="#ZIP_FL_ENC_GUESS"><code class="Dv">ZIP_FL_ENC_GUESS</code></a></dt>
<dd>Guess encoding of <var class="Ar">comment</var> (default). (Only CP-437
and UTF-8 are recognized.)</dd>
<dt id="ZIP_FL_ENC_UTF_8"><a class="permalink" href="#ZIP_FL_ENC_UTF_8"><code class="Dv">ZIP_FL_ENC_UTF_8</code></a></dt>
<dd>Interpret <var class="Ar">comment</var> as UTF-8.</dd>
<dt id="ZIP_FL_ENC_CP437"><a class="permalink" href="#ZIP_FL_ENC_CP437"><code class="Dv">ZIP_FL_ENC_CP437</code></a></dt>
<dd>Interpret <var class="Ar">comment</var> as code page 437 (CP-437).</dd>
</dl>
</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 0 is returned. Otherwise, -1 is
returned and the error information in <var class="Ar">archive</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_file_set_comment</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">index</var> is not a valid file index in
<var class="Ar">archive</var>, or <var class="Ar">len</var> is less than 0
or longer than the maximum comment length in a zip file (65535), or
<var class="Ar">comment</var> is not a valid UTF-8 encoded string.</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>
<dt id="ZIP_ER_RDONLY">[<a class="permalink" href="#ZIP_ER_RDONLY"><code class="Er">ZIP_ER_RDONLY</code></a>]</dt>
<dd>The <var class="Ar">archive</var> was opened in read-only mode.</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_file_get_comment.html">zip_file_get_comment(3)</a>,
<a class="Xr" href="zip_get_archive_comment.html">zip_get_archive_comment(3)</a>,
<a class="Xr" href="zip_set_archive_comment.html">zip_set_archive_comment(3)</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_file_set_comment</code>() was added in libzip
0.11.</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">
<tr>
<td class="foot-date">September 22, 2020</td>
<td class="foot-os">NiH</td>
</tr>
</table>
</body>
</html>
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