161 lines
4.8 KiB
HTML
161 lines
4.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!--
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- Copyright (C) 2000, 2001, 2004, 2005, 2007, 2014-2016 Internet Systems Consortium, Inc. ("ISC")
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-
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- This Source Code Form is subject to the terms of the Mozilla Public
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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- file, You can obtain one at http://mozilla.org/MPL/2.0/.
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-->
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>lwres_gai_strerror</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry">
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<a name="id-1"></a><div class="titlepage"></div>
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<div class="refnamediv">
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<h2>Name</h2>
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<p>
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lwres_gai_strerror
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— print suitable error string
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</p>
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</div>
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<div class="refsynopsisdiv">
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<h2>Synopsis</h2>
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<div class="funcsynopsis">
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<pre class="funcsynopsisinfo">#include <lwres/netdb.h></pre>
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<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr>
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<td><code class="funcdef">
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char *
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<b class="fsfunc">gai_strerror</b>(</code></td>
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<td>int <var class="pdparam">ecode</var><code>)</code>;</td>
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</tr></table>
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<div class="funcprototype-spacer"> </div>
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</div>
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</div>
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<div class="refsection">
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<a name="id-1.7"></a><h2>DESCRIPTION</h2>
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<p><code class="function">lwres_gai_strerror()</code>
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returns an error message corresponding to an error code returned by
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<code class="function">getaddrinfo()</code>.
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The following error codes and their meaning are defined in
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<code class="filename">include/lwres/netdb.h</code>.
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</p>
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<div class="variablelist"><dl class="variablelist">
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<dt><span class="term"><span class="errorcode">EAI_ADDRFAMILY</span></span></dt>
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<dd>
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<p>
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address family for hostname not supported
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_AGAIN</span></span></dt>
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<dd>
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<p>
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temporary failure in name resolution
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_BADFLAGS</span></span></dt>
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<dd>
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<p>
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invalid value for
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<code class="constant">ai_flags</code>
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_FAIL</span></span></dt>
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<dd>
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<p>
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non-recoverable failure in name resolution
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_FAMILY</span></span></dt>
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<dd>
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<p><code class="constant">ai_family</code> not supported
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_MEMORY</span></span></dt>
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<dd>
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<p>
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memory allocation failure
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_NODATA</span></span></dt>
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<dd>
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<p>
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no address associated with hostname
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_NONAME</span></span></dt>
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<dd>
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<p>
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hostname or servname not provided, or not known
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_SERVICE</span></span></dt>
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<dd>
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<p>
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servname not supported for <code class="constant">ai_socktype</code>
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_SOCKTYPE</span></span></dt>
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<dd>
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<p><code class="constant">ai_socktype</code> not supported
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</p>
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</dd>
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<dt><span class="term"><span class="errorcode">EAI_SYSTEM</span></span></dt>
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<dd>
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<p>
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system error returned in errno
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</p>
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</dd>
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</dl></div>
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<p>
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The message <span class="errorname">invalid error code</span> is returned if
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<em class="parameter"><code>ecode</code></em>
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is out of range.
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</p>
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<p><code class="constant">ai_flags</code>,
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<code class="constant">ai_family</code>
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and
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<code class="constant">ai_socktype</code>
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are elements of the
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<span class="type">struct addrinfo</span>
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used by
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<code class="function">lwres_getaddrinfo()</code>.
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</p>
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</div>
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<div class="refsection">
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<a name="id-1.8"></a><h2>SEE ALSO</h2>
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<p><span class="citerefentry">
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<span class="refentrytitle">strerror</span>(3)
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</span>,
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<span class="citerefentry">
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<span class="refentrytitle">lwres_getaddrinfo</span>(3)
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</span>,
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<span class="citerefentry">
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<span class="refentrytitle">getaddrinfo</span>(3)
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</span>,
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<span class="citerefentry">
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<span class="refentrytitle">RFC2133</span>
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</span>.
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</p>
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</div>
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</div></body>
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</html>
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