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<ul>

	<li><a href="#name">NAME</a></li>
	<li><a href="#synopsis">SYNOPSIS</a></li>
	<li><a href="#description">DESCRIPTION</a></li>
	<li><a href="#bugs">BUGS</a></li>
	<li><a href="#return_values">RETURN VALUES</a></li>
	<li><a href="#copyright">COPYRIGHT</a></li>
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<h1><a name="name">NAME</a></h1>
<p>X509_cmp_time, X509_cmp_current_time, X509_time_adj, X509_time_adj_ex
- X509 time functions</p>
<p>
</p>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<pre>
 int X509_cmp_time(const ASN1_TIME *asn1_time, time_t *in_tm);
 int X509_cmp_current_time(const ASN1_TIME *asn1_time);
 ASN1_TIME *X509_time_adj(ASN1_TIME *asn1_time, long offset_sec, time_t *in_tm);
 ASN1_TIME *X509_time_adj_ex(ASN1_TIME *asn1_time, int offset_day, long
                             offset_sec, time_t *in_tm);</pre>
<p>
</p>
<hr />
<h1><a name="description">DESCRIPTION</a></h1>
<p>X509_cmp_time() compares the ASN1_TIME in <strong>asn1_time</strong> with the time
in &lt;cmp_time&gt;. X509_cmp_current_time() compares the ASN1_TIME in
<strong>asn1_time</strong> with the current time, expressed as time_t. <strong>asn1_time</strong>
must satisfy the ASN1_TIME format mandated by <a href="http://www.ietf.org/rfc/rfc5280.txt" class="rfc">RFC 5280</a>, i.e., its
format must be either YYMMDDHHMMSSZ or YYYYMMDDHHMMSSZ.</p>
<p>X509_time_adj_ex() sets the ASN1_TIME structure <strong>asn1_time</strong> to the time
<strong>offset_day</strong> and <strong>offset_sec</strong> after <strong>in_tm</strong>.</p>
<p>X509_time_adj() sets the ASN1_TIME structure <strong>asn1_time</strong> to the time
<strong>offset_sec</strong> after <strong>in_tm</strong>. This method can only handle second
offsets up to the capacity of long, so the newer X509_time_adj_ex()
API should be preferred.</p>
<p>In both methods, if <strong>asn1_time</strong> is NULL, a new ASN1_TIME structure
is allocated and returned.</p>
<p>In all methods, if <strong>in_tm</strong> is NULL, the current time, expressed as
time_t, is used.</p>
<p>
</p>
<hr />
<h1><a name="bugs">BUGS</a></h1>
<p>Unlike many standard comparison functions, X509_cmp_time() and
X509_cmp_current_time() return 0 on error.</p>
<p>
</p>
<hr />
<h1><a name="return_values">RETURN VALUES</a></h1>
<p>X509_cmp_time() and X509_cmp_current_time() return -1 if <strong>asn1_time</strong>
is earlier than, or equal to, <strong>cmp_time</strong> (resp. current time), and 1
otherwise. These methods return 0 on error.</p>
<p>X509_time_adj() and X509_time_adj_ex() return a pointer to the updated
ASN1_TIME structure, and NULL on error.</p>
<p>
</p>
<hr />
<h1><a name="copyright">COPYRIGHT</a></h1>
<p>Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the OpenSSL license (the &quot;License&quot;).  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file LICENSE in the source distribution or at
<a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>

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