lwres_hstrerror.html revision 75c0816e8295e180f4bc7f10db3d0d880383bc1c
1ccbfca64ae86ace521053773001cb995352f96fBob Halley - Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
1ccbfca64ae86ace521053773001cb995352f96fBob Halley - Copyright (C) 2000, 2001 Internet Software Consortium.
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1ccbfca64ae86ace521053773001cb995352f96fBob Halley<!-- $Id: lwres_hstrerror.html,v 1.14 2005/05/13 03:14:15 marka Exp $ -->
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1ccbfca64ae86ace521053773001cb995352f96fBob Halley<a name="id2456836"></a><div class="titlepage"></div>
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley<p>lwres_herror, lwres_hstrerror — lightweight resolver error message generation</p>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<pre class="funcsynopsisinfo">#include <lwres/netdb.h></pre>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<b class="fsfunc">lwres_herror</b>(</code>const char *<var class="pdparam">s</var><code>)</code>;</p>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<b class="fsfunc">lwres_hstrerror</b>(</code>int <var class="pdparam">err</var><code>)</code>;</p>
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley prints the string <em class="parameter"><code>s</code></em> on
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley <span class="type">stderr</span> followed by the string generated by
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley <code class="function">lwres_hstrerror()</code> for the error code stored
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley in the global variable <code class="constant">lwres_h_errno</code>.
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley<p><code class="function">lwres_hstrerror()</code>
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley returns an appropriate string for the error code gievn by
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley <em class="parameter"><code>err</code></em>. The values of the error codes and
4dfbac743493fc56a1ae391130b27f9517acb803Bob Halley messages are as follows:
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dt><span class="term"><span class="errorcode">NETDB_SUCCESS</span></span></dt>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dd><p><span class="errorname">Resolver Error 0 (no error)</span>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dt><span class="term"><span class="errorcode">HOST_NOT_FOUND</span></span></dt>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dd><p><span class="errorname">Unknown host</span>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dt><span class="term"><span class="errorcode">TRY_AGAIN</span></span></dt>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dd><p><span class="errorname">Host name lookup failure</span>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dt><span class="term"><span class="errorcode">NO_RECOVERY</span></span></dt>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dd><p><span class="errorname">Unknown server error</span>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dt><span class="term"><span class="errorcode">NO_DATA</span></span></dt>
1ccbfca64ae86ace521053773001cb995352f96fBob Halley<dd><p><span class="errorname">No address associated with name</span>
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley The string <span class="errorname">Unknown resolver error</span> is returned by
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley when the value of
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley is not a valid error code.
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley<p><span class="citerefentry"><span class="refentrytitle">herror</span>(3)</span>,
e5c2e16bb21387962f0d04567d44d1a34cd83b4fBob Halley <span class="citerefentry"><span class="refentrytitle">lwres_hstrerror</span>(3)</span>.