1<!-- 2 - Copyright (C) 2004, 2005, 2007, 2014 Internet Systems Consortium, Inc. ("ISC") 3 - Copyright (C) 2000, 2001 Internet Software Consortium. 4 - 5 - Permission to use, copy, modify, and/or distribute this software for any 6 - purpose with or without fee is hereby granted, provided that the above 7 - copyright notice and this permission notice appear in all copies. 8 - 9 - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10 - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11 - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12 - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13 - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14 - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15 - PERFORMANCE OF THIS SOFTWARE. 16--> 17<!-- Id --> 18<html> 19<head> 20<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 21<title>lwres_hstrerror</title> 22<meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> 23</head> 24<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"> 25<a name="id2476275"></a><div class="titlepage"></div> 26<div class="refnamediv"> 27<h2>Name</h2> 28<p>lwres_herror, lwres_hstrerror — lightweight resolver error message generation</p> 29</div> 30<div class="refsynopsisdiv"> 31<h2>Synopsis</h2> 32<div class="funcsynopsis"> 33<pre class="funcsynopsisinfo">#include <lwres/netdb.h></pre> 34<table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" style="padding-bottom: 1em"><tr> 35<td><code class="funcdef"> 36void 37<b class="fsfunc">lwres_herror</b>(</code></td> 38<td>const char *�</td> 39<td> 40<var class="pdparam">s</var><code>)</code>;</td> 41</tr></table> 42<table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr> 43<td><code class="funcdef"> 44const char * 45<b class="fsfunc">lwres_hstrerror</b>(</code></td> 46<td>int �</td> 47<td> 48<var class="pdparam">err</var><code>)</code>;</td> 49</tr></table> 50</div> 51</div> 52<div class="refsect1" lang="en"> 53<a name="id2543388"></a><h2>DESCRIPTION</h2> 54<p><code class="function">lwres_herror()</code> 55 prints the string <em class="parameter"><code>s</code></em> on 56 <span class="type">stderr</span> followed by the string generated by 57 <code class="function">lwres_hstrerror()</code> for the error code stored 58 in the global variable <code class="constant">lwres_h_errno</code>. 59 </p> 60<p><code class="function">lwres_hstrerror()</code> 61 returns an appropriate string for the error code gievn by 62 <em class="parameter"><code>err</code></em>. The values of the error codes and 63 messages are as follows: 64 65 </p> 66<div class="variablelist"><dl> 67<dt><span class="term"><span class="errorcode">NETDB_SUCCESS</span></span></dt> 68<dd><p><span class="errorname">Resolver Error 0 (no error)</span> 69 </p></dd> 70<dt><span class="term"><span class="errorcode">HOST_NOT_FOUND</span></span></dt> 71<dd><p><span class="errorname">Unknown host</span> 72 </p></dd> 73<dt><span class="term"><span class="errorcode">TRY_AGAIN</span></span></dt> 74<dd><p><span class="errorname">Host name lookup failure</span> 75 </p></dd> 76<dt><span class="term"><span class="errorcode">NO_RECOVERY</span></span></dt> 77<dd><p><span class="errorname">Unknown server error</span> 78 </p></dd> 79<dt><span class="term"><span class="errorcode">NO_DATA</span></span></dt> 80<dd><p><span class="errorname">No address associated with name</span> 81 </p></dd> 82</dl></div> 83<p> 84 </p> 85</div> 86<div class="refsect1" lang="en"> 87<a name="id2543507"></a><h2>RETURN VALUES</h2> 88<p> 89 The string <span class="errorname">Unknown resolver error</span> is returned by 90 <code class="function">lwres_hstrerror()</code> 91 when the value of 92 <code class="constant">lwres_h_errno</code> 93 is not a valid error code. 94 </p> 95</div> 96<div class="refsect1" lang="en"> 97<a name="id2543527"></a><h2>SEE ALSO</h2> 98<p><span class="citerefentry"><span class="refentrytitle">herror</span>(3)</span>, 99 100 <span class="citerefentry"><span class="refentrytitle">lwres_hstrerror</span>(3)</span>. 101 </p> 102</div> 103</div></body> 104</html> 105