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<title>BIO_parse_hostserv</title>
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<li><a href="#NAME">NAME</a></li>
<li><a href="#SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#RETURN-VALUES">RETURN VALUES</a></li>
<li><a href="#SEE-ALSO">SEE ALSO</a></li>
<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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<h1 id="NAME">NAME</h1>
<p>BIO_hostserv_priorities, BIO_parse_hostserv - utility routines to parse a standard host and service string</p>
<h1 id="SYNOPSIS">SYNOPSIS</h1>
<pre><code> #include <openssl/bio.h>
enum BIO_hostserv_priorities {
BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
};
int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
enum BIO_hostserv_priorities hostserv_prio);</code></pre>
<h1 id="DESCRIPTION">DESCRIPTION</h1>
<p>BIO_parse_hostserv() will parse the information given in <b>hostserv</b>, create strings with the hostname and service name and give those back via <b>host</b> and <b>service</b>. Those will need to be freed after they are used. <b>hostserv_prio</b> helps determine if <b>hostserv</b> shall be interpreted primarily as a hostname or a service name in ambiguous cases.</p>
<p>The syntax the BIO_parse_hostserv() recognises is:</p>
<pre><code> host + ':' + service
host + ':' + '*'
host + ':'
':' + service
'*' + ':' + service
host
service</code></pre>
<p>The host part can be a name or an IP address. If it's a IPv6 address, it MUST be enclosed in brackets, such as '[::1]'.</p>
<p>The service part can be a service name or its port number.</p>
<p>The returned values will depend on the given <b>hostserv</b> string and <b>hostserv_prio</b>, as follows:</p>
<pre><code> host + ':' + service => *host = "host", *service = "service"
host + ':' + '*' => *host = "host", *service = NULL
host + ':' => *host = "host", *service = NULL
':' + service => *host = NULL, *service = "service"
'*' + ':' + service => *host = NULL, *service = "service"
in case no ':' is present in the string, the result depends on
hostserv_prio, as follows:
when hostserv_prio == BIO_PARSE_PRIO_HOST
host => *host = "host", *service untouched
when hostserv_prio == BIO_PARSE_PRIO_SERV
service => *host untouched, *service = "service"</code></pre>
<h1 id="RETURN-VALUES">RETURN VALUES</h1>
<p>BIO_parse_hostserv() returns 1 on success or 0 on error.</p>
<h1 id="SEE-ALSO">SEE ALSO</h1>
<p><a href="../man3/BIO_ADDRINFO.html">BIO_ADDRINFO(3)</a></p>
<h1 id="COPYRIGHT">COPYRIGHT</h1>
<p>Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.</p>
<p>Licensed under the OpenSSL license (the "License"). 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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