152 lines
3.9 KiB
HTML
152 lines
3.9 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>dn_skipname()--Skip over Compressed Domain Name</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- Unix8 SCRIPT J converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
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<!-- Edited by Kersten Feb 02 -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- Java sync-link -->
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>dn_skipname()--Skip over Compressed Domain Name</h2>
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<div class="box" style="width: 80%;">
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<br>
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Syntax<br>
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<pre>
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <resolv.h>
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int dn_skipname(unsigned char *<em>compressed_domain_name</em>,
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unsigned char *<em>end_of_message</em>)
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</pre>
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<br>
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Service Program Name: QSOSRV2<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <em>dn_skipname()</em> function is used to skip over a compressed domain
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name in a DNS packet.</p>
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<br>
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<!-- Please NOTE: DO NOT DELETE THIS SECTION if this API has no authorities and locks. -->
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<!-- Instead, use the commented out coding below to indicate NONE. -->
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<h3>Authorities and Locks</h3>
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<!-- Use this if there are no authorities and locks. -->
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<p>None.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt><strong>compressed_domain_name</strong></dt>
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<dd>(Input) A pointer to a compressed domain name.<br>
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<br>
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</dd>
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<dt><strong>end_of_message</strong></dt>
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<dd>(Input) The pointer to the end of the message string.</dd>
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</dl>
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<br>
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<h3>Return Value</h3>
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<p><em>dn_skipname()</em> returns an integer. Possible values are:</p>
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<ul>
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<li>-1 (unsuccessful)<br>
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<br>
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</li>
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<li>n (successful), where n is the size of
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<em>compressed_domain_name</em>.</li>
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</ul>
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<br>
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<h3>Error Conditions</h3>
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<p>When the <em>dn_skipname()</em> function fails, it does not set specific
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<em>errno</em> or <em>h_errno</em> values. An error occurs under the following
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conditions:</p>
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<ul>
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<li>NULL pointer(s) passed to the function.<br><br></li>
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<li>Invalid pointer(s) passed to the function.<br><br></li>
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<li><em>end_of_message</em> reached before the end of the compressed domain
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name.</li>
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</ul>
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<br>
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<h3>Usage Notes</h3>
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<ol>
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<li><em>dn_skipname()</em> skips over a compressed domain name in a DNS packet
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and returns the size of <em>compressed_domain_name</em>.<br>
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<br>
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</li>
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<li><em>dn_skipname()</em> expects EBCDIC data as input.</li>
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</ol>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href="dnexp.htm">dn_expand()</a>--Expand Domain Name<br>
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<br>
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</li>
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<li><a href="dnfind.htm">dn_find()</a>--Search for Compressed Domain Name<br>
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<br>
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</li>
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<li><a href="dncomp.htm">dn_comp()</a>--Compress Domain Name</li>
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</ul>
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<br>
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<hr>
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API introduced: V3R1
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a> </td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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