140 lines
4.1 KiB
HTML
140 lines
4.1 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>ns_ntoa()--Translate Network Services Address from 12-byte
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Address</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>ns_ntoa()--Translate Network Services Address from 12-byte
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Address/h2></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 <netns/ns.h>
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char *ns_ntoa
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(struct ns_addr <em>network_services_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>ns_ntoa()</em> function is used to translate a network services
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address from a 12-byte address to a human readable 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>struct ns_addr <strong><em>network_services_address</em></strong></dt>
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<dd>(Input) The 12-byte network services address that is to be converted to
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human readable 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>The <em>ns_ntoa()</em> function returns:</p>
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<ul>
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<li>NULL (unsuccessful call)<br>
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<br>
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</li>
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<li>s (where s is the pointer to the network services address in human readable
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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 network services address consists of three fields, the network field,
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the host field, and the port number field. <em>ns_ntoa()</em> returns these
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fields as a single character string with the fields separated by the period (.)
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character. The character string is always terminated with a NULL character.<br>
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<br>
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</li>
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<li>The fields are always returned in hexadecimal notation. <em>ns_ntoa()</em>
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inserts an H character at the end of each field that does not contain an
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a,b,c,d,e,f,A,B,C,D,E or F character, in order to make it obvious that the
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notation is in hexadecimal.<br>
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<br>
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</li>
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<li>Not all fields need be returned. For example, if the host field and the
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port number field of the network services address both contain hexadecimal
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zeros, <em>ns_ntoa()</em> returns a character string that only contains the
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network field.<br>
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<br>
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</li>
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<li>The pointer returned by <em>ns_ntoa()</em> points to static storage that is
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overridden on subsequent calls to <em>ns_ntoa()</em>.<br>
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<br>
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</li>
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<li>Do not use the ns_ntoa() function in a multithread environment. See the
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multithread alternative <a href="tsnsntoa.htm">ns_ntoa_r()</a> 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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