119 lines
3.3 KiB
HTML
119 lines
3.3 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>inet_ntoa()--Translate IP Address to Dotted Decimal Format</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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<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>inet_ntoa()--Translate IP Address to Dotted Decimal Format</h2>
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<div class="box" style="width: 70%;"><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 <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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char *inet_ntoa(struct in_addr <em>internet_address</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: No; see <a href="#USAGE_NOTES">Usage Notes</a>.<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <em>inet_ntoa()</em> function is used to translate an Internet address
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from a 32-bit IP address to dotted decimal format.</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>internet_address</strong></dt>
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<dd>(Input) The 32-bit IP address that is to be converted to dotted decimal
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format.</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>inet_ntoa()</em> returns one of the following values: </p>
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<ul>
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<li>NULL (unsuccessful)<br>
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<br>
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</li>
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<li>s (where s is the pointer to the Internet address in dotted decimal
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format)</li>
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</ul>
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<br>
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<h3><a name="USAGE_NOTES">Usage Notes</a></h3>
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<ol>
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<li>The pointer returned by <em>inet_ntoa()</em> points to static storage that
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is overridden on subsequent <em>inet_ntoa()</em> functions.<br>
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<br>
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</li>
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<li>Do not use the <em>inet_ntoa()</em> function in a multithreaded
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environment. See the multithread alternative <em>inet_ntoa_r</em>
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function.</li>
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</ol>
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<br>
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<hr>
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API introduced: V4R2
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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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