114 lines
3.0 KiB
HTML
114 lines
3.0 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>_getlong()--Get Long Byte Quantities</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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<!-- 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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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!--End Header Records -->
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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>_getlong()--Get Long Byte Quantities</h2>
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<div class="box" style="width: 70%;">
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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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unsigned long
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_getlong(unsigned char *<em>message_pointer</em>)
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</pre>
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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>_getlong()</em> function is used to retrieve an unsigned long byte
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quantity.</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>message_pointer</strong></dt>
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<dd>(Input) The pointer where the long integer is to be received from.</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>_getlong()</em> returns a 32-bit integer from where
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<em>message_pointer</em> is pointing.</p>
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<br>
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<h3>Usage Notes</h3>
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<ol>
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<li>DNS packets have fields that are unsigned long integers (for example, TTL
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and serial number). <em>_getlong()</em> picks these unsigned long integers out
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of a DNS packet and returns them.</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="gets.htm">_getshort()</a>--Get Short Byte Quantities<br>
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<br>
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</li>
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<li><a href="putl.htm">_putlong()</a>--Put Long Byte Quantities<br>
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<br>
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</li>
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<li><a href="puts.htm">_putshort()</a>--Put Short Byte Quantities</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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