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-<!--
- - Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
- - Copyright (C) 2000, 2001 Internet Software Consortium.
- -
- - Permission to use, copy, modify, and distribute this software for any
- - purpose with or without fee is hereby granted, provided that the above
- - copyright notice and this permission notice appear in all copies.
- -
- - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- - PERFORMANCE OF THIS SOFTWARE.
--->
-<!-- $Id: lwres_getnameinfo.html,v 1.5.2.1.4.9 2005/10/13 02:33:56 marka Exp $ -->
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
-<title>lwres_getnameinfo</title>
-<meta name="generator" content="DocBook XSL Stylesheets V1.69.1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
-<a name="id2463721"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2>Name</h2>
-<p>lwres_getnameinfo &#8212; lightweight resolver socket address structure to hostname and service name</p>
-</div>
-<div class="refsynopsisdiv">
-<h2>Synopsis</h2>
-<div class="funcsynopsis">
-<pre class="funcsynopsisinfo">#include &lt;lwres/netdb.h&gt;</pre>
-<table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
-<tr>
-<td><code class="funcdef">
-int
-<b class="fsfunc">lwres_getnameinfo</b>(</code></td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>, </td>
-</tr>
-<tr>
-<td> </td>
-<td> </td>
-<td>
-<code>)</code>;</td>
-</tr>
-</table>
-</div>
-</div>
-<div class="refsect1" lang="en">
-<a name="id2525862"></a><h2>DESCRIPTION</h2>
-<p> This function is equivalent to the <span class="citerefentry"><span class="refentrytitle">getnameinfo</span>(3)</span> function defined in RFC2133.
-<code class="function">lwres_getnameinfo()</code> returns the hostname for the
-<span class="type">struct sockaddr</span> <em class="parameter"><code>sa</code></em> which is
-<em class="parameter"><code>salen</code></em> bytes long. The hostname is of length
-<em class="parameter"><code>hostlen</code></em> and is returned via
-<em class="parameter"><code>*host.</code></em> The maximum length of the hostname is
-1025 bytes: <code class="constant">NI_MAXHOST</code>.</p>
-<p> The name of the service associated with the port number in
-<em class="parameter"><code>sa</code></em> is returned in <em class="parameter"><code>*serv.</code></em>
-It is <em class="parameter"><code>servlen</code></em> bytes long. The maximum length
-of the service name is <code class="constant">NI_MAXSERV</code> - 32 bytes.
-</p>
-<p> The <em class="parameter"><code>flags</code></em> argument sets the following
-bits:
-</p>
-<div class="variablelist"><dl>
-<dt><span class="term"><code class="constant">NI_NOFQDN</code></span></dt>
-<dd><p>
-A fully qualified domain name is not required for local hosts.
-The local part of the fully qualified domain name is returned instead.
-</p></dd>
-<dt><span class="term"><code class="constant">NI_NUMERICHOST</code></span></dt>
-<dd><p>
-Return the address in numeric form, as if calling inet_ntop(),
-instead of a host name.
-</p></dd>
-<dt><span class="term"><code class="constant">NI_NAMEREQD</code></span></dt>
-<dd><p>
-A name is required. If the hostname cannot be found in the DNS and
-this flag is set, a non-zero error code is returned.
-If the hostname is not found and the flag is not set, the
-address is returned in numeric form.
-</p></dd>
-<dt><span class="term"><code class="constant">NI_NUMERICSERV</code></span></dt>
-<dd><p>
-The service name is returned as a digit string representing the port number.
-</p></dd>
-<dt><span class="term"><code class="constant">NI_DGRAM</code></span></dt>
-<dd><p>
-Specifies that the service being looked up is a datagram
-service, and causes getservbyport() to be called with a second
-argument of "udp" instead of its default of "tcp". This is required
-for the few ports (512-514) that have different services for UDP and
-TCP.
-</p></dd>
-</dl></div>
-<p>
-</p>
-</div>
-<div class="refsect1" lang="en">
-<a name="id2525988"></a><h2>RETURN VALUES</h2>
-<p>
-<code class="function">lwres_getnameinfo()</code>
-returns 0 on success or a non-zero error code if an error occurs.
-</p>
-</div>
-<div class="refsect1" lang="en">
-<a name="id2526001"></a><h2>SEE ALSO</h2>
-<p>
-<span class="citerefentry"><span class="refentrytitle">RFC2133</span></span>,
-<span class="citerefentry"><span class="refentrytitle">getservbyport</span>(3)</span>,
-<span class="citerefentry"><span class="refentrytitle">lwres</span>(3)</span>,
-<span class="citerefentry"><span class="refentrytitle">lwres_getnameinfo</span>(3)</span>,
-<span class="citerefentry"><span class="refentrytitle">lwres_getnamebyaddr</span>(3)</span>.
-<span class="citerefentry"><span class="refentrytitle">lwres_net_ntop</span>(3)</span>.
-</p>
-</div>
-<div class="refsect1" lang="en">
-<a name="id2526059"></a><h2>BUGS</h2>
-<p>
-RFC2133 fails to define what the nonzero return values of
-<span class="citerefentry"><span class="refentrytitle">getnameinfo</span>(3)</span>
-are.
-</p>
-</div>
-</div></body>
-</html>