man/zip_file_set_mtime.html - third_party/libzip - Git at Google

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    zip_file_set_mtime.mdoc -- set mtime for file in zip
    Copyright (C) 2014-2020 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_SET_MTIME(3)</title>
 </head>
 <body>
 <table class="head">
   <tr>
     <td class="head-ltitle">ZIP_FILE_SET_MTIME(3)</td>
     <td class="head-vol">Library Functions Manual</td>
     <td class="head-rtitle">ZIP_FILE_SET_MTIME(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_file_set_dostime</code>,
   <code class="Nm">zip_file_set_mtime</code> &#x2014;
 <div class="Nd">set last modification time (mtime) for file in zip</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">int</var>
   <br/>
   <code class="Fn">zip_file_set_dostime</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;">zip_uint16_t
     dostime</var>, <var class="Fa" style="white-space: nowrap;">zip_uint16_t
     dosdate</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t
     flags</var>);</p>
 <p class="Pp"><var class="Ft">int</var>
   <br/>
   <code class="Fn">zip_file_set_mtime</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;">time_t
     mtime</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>
 The <code class="Fn">zip_file_set_mtime</code>() function sets the last
   modification time (mtime) for the file at position <var class="Ar">index</var>
   in the zip archive to <var class="Ar">mtime</var>. Currently, no support for
   any <var class="Ar">flags</var> is implemented.
 <p class="Pp">In the zip archive, the time and date are saved as two 16-bit
     integers. To set the values directly, call the
     <code class="Fn">zip_file_set_dostime</code>() function. The values of the
     time bytes are defined as follows:</p>
 <div class="Bd-indent">
 <dl class="Bl-tag">
   <dt>0-4</dt>
   <dd>seconds divided by two (1-2 = 1, 3-4 = 2, ...)</dd>
   <dt>5-10</dt>
   <dd>minute (0-59)</dd>
   <dt>11-15</dt>
   <dd>hour (0-23)</dd>
 </dl>
 </div>
 <p class="Pp">The values of the date bytes are defined as follows:</p>
 <div class="Bd-indent">
 <dl class="Bl-tag">
   <dt>0-4</dt>
   <dd>day of the month (1-31)</dd>
   <dt>5-8</dt>
   <dd>month (January = 1, February = 2, ...)</dd>
   <dt>9-15</dt>
   <dd>year offset from 1980 (1980 = 0, 1981 = 1, ...)</dd>
 </dl>
 </div>
 </section>
 <section class="Sh">
 <h1 class="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 information in <var class="Ar">archive</var> is set to indicate the
   error.
 </section>
 <section class="Sh">
 <h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
 <code class="Fn">zip_file_set_dostime</code>() and
   <code class="Fn">zip_file_set_mtime</code>() fail if:
 <dl class="Bl-tag">
   <dt>[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er" id="ZIP_ER_INVAL">ZIP_ER_INVAL</code></a>]</dt>
   <dd><var class="Ar">index</var> is not a valid file index in
       <var class="Ar">archive</var>.</dd>
   <dt>[<a class="permalink" href="#ZIP_ER_MEMORY"><code class="Er" id="ZIP_ER_MEMORY">ZIP_ER_MEMORY</code></a>]</dt>
   <dd>Required memory could not be allocated.</dd>
   <dt>[<a class="permalink" href="#ZIP_ER_RDONLY"><code class="Er" id="ZIP_ER_RDONLY">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>
 <a class="Xr" href="libzip.html">libzip(3)</a>,
   <a class="Xr" href="zip_stat.html">zip_stat(3)</a>
 </section>
 <section class="Sh">
 <h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
 <code class="Fn">zip_file_set_mtime</code>() was added in libzip 1.0.
   <code class="Fn">zip_file_set_dostime</code>() was added in libzip 1.6.
 </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>
 <section class="Sh">
 <h1 class="Sh" id="CAVEATS"><a class="permalink" href="#CAVEATS">CAVEATS</a></h1>
 Following historical practice, the <code class="Fn">zip_file_set_mtime</code>()
   function translates the time from the zip archive into the local time zone. If
   you want to avoid this, use the <code class="Fn">zip_file_set_dostime</code>()
   function instead.
 </section>
 </div>
 <table class="foot">
   <tr>
     <td class="foot-date">August 24, 2020</td>
     <td class="foot-os">NiH</td>
   </tr>
 </table>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<!-- This is an automatically generated file. Do not edit.
	zip_file_set_mtime.mdoc -- set mtime for file in zip
	Copyright (C) 2014-2020 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.
	-->
	<head>
	<meta charset="utf-8"/>
	<link rel="stylesheet" href="../nih-man.css" type="text/css" media="all"/>
	<title>ZIP_FILE_SET_MTIME(3)</title>
	</head>
	<body>
	<table class="head">
	<tr>
	<td class="head-ltitle">ZIP_FILE_SET_MTIME(3)</td>
	<td class="head-vol">Library Functions Manual</td>
	<td class="head-rtitle">ZIP_FILE_SET_MTIME(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_file_set_dostime</code>,
	<code class="Nm">zip_file_set_mtime</code> —
	<div class="Nd">set last modification time (mtime) for file in zip</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 <<a class="In">zip.h</a>></code>
	<p class="Pp"><var class="Ft">int</var>
	<br/>
	<code class="Fn">zip_file_set_dostime</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;">zip_uint16_t
	dostime</var>, <var class="Fa" style="white-space: nowrap;">zip_uint16_t
	dosdate</var>, <var class="Fa" style="white-space: nowrap;">zip_flags_t
	flags</var>);</p>
	<p class="Pp"><var class="Ft">int</var>
	<br/>
	<code class="Fn">zip_file_set_mtime</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;">time_t
	mtime</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>
	The <code class="Fn">zip_file_set_mtime</code>() function sets the last
	modification time (mtime) for the file at position <var class="Ar">index</var>
	in the zip archive to <var class="Ar">mtime</var>. Currently, no support for
	any <var class="Ar">flags</var> is implemented.
	<p class="Pp">In the zip archive, the time and date are saved as two 16-bit
	integers. To set the values directly, call the
	<code class="Fn">zip_file_set_dostime</code>() function. The values of the
	time bytes are defined as follows:</p>
	<div class="Bd-indent">
	<dl class="Bl-tag">
	<dt>0-4</dt>
	<dd>seconds divided by two (1-2 = 1, 3-4 = 2, ...)</dd>
	<dt>5-10</dt>
	<dd>minute (0-59)</dd>
	<dt>11-15</dt>
	<dd>hour (0-23)</dd>
	</dl>
	</div>
	<p class="Pp">The values of the date bytes are defined as follows:</p>
	<div class="Bd-indent">
	<dl class="Bl-tag">
	<dt>0-4</dt>
	<dd>day of the month (1-31)</dd>
	<dt>5-8</dt>
	<dd>month (January = 1, February = 2, ...)</dd>
	<dt>9-15</dt>
	<dd>year offset from 1980 (1980 = 0, 1981 = 1, ...)</dd>
	</dl>
	</div>
	</section>
	<section class="Sh">
	<h1 class="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 information in <var class="Ar">archive</var> is set to indicate the
	error.
	</section>
	<section class="Sh">
	<h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
	<code class="Fn">zip_file_set_dostime</code>() and
	<code class="Fn">zip_file_set_mtime</code>() fail if:
	<dl class="Bl-tag">
	<dt>[<a class="permalink" href="#ZIP_ER_INVAL"><code class="Er" id="ZIP_ER_INVAL">ZIP_ER_INVAL</code></a>]</dt>
	<dd><var class="Ar">index</var> is not a valid file index in
	<var class="Ar">archive</var>.</dd>
	<dt>[<a class="permalink" href="#ZIP_ER_MEMORY"><code class="Er" id="ZIP_ER_MEMORY">ZIP_ER_MEMORY</code></a>]</dt>
	<dd>Required memory could not be allocated.</dd>
	<dt>[<a class="permalink" href="#ZIP_ER_RDONLY"><code class="Er" id="ZIP_ER_RDONLY">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>
	<a class="Xr" href="libzip.html">libzip(3)</a>,
	<a class="Xr" href="zip_stat.html">zip_stat(3)</a>
	</section>
	<section class="Sh">
	<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
	<code class="Fn">zip_file_set_mtime</code>() was added in libzip 1.0.
	<code class="Fn">zip_file_set_dostime</code>() was added in libzip 1.6.
	</section>
	<section class="Sh">
	<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
	<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:tk@giga.or.at">tk@giga.or.at</a>>
	</section>
	<section class="Sh">
	<h1 class="Sh" id="CAVEATS"><a class="permalink" href="#CAVEATS">CAVEATS</a></h1>
	Following historical practice, the <code class="Fn">zip_file_set_mtime</code>()
	function translates the time from the zip archive into the local time zone. If
	you want to avoid this, use the <code class="Fn">zip_file_set_dostime</code>()
	function instead.
	</section>
	</div>
	<table class="foot">
	<tr>
	<td class="foot-date">August 24, 2020</td>
	<td class="foot-os">NiH</td>
	</tr>
	</table>
	</body>
	</html>