163 lines
5.3 KiB
HTML
163 lines
5.3 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>fDPIset()--Free Storage from DPI Set Packet</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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<!-- Direct1 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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<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 --><!-- Edited by Kersten Feb 02 -->
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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>fDPIset()--Free Storage from DPI Set Packet</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 <qtossapi.h>
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void fDPIset( snmp_dpi_set_packet <em>*packet_p</em> );
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</pre>
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<br>
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Service Program Name: QTOSSAPI<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<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>fDPIset()</strong> function frees storage that was previously
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allocated for snmp_dpi_set_packet structures.</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>packet_p</strong></dt>
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<dd>(Input) A pointer to the first snmp_dpi_set_packet structure in a chain of
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such structures.</dd>
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</dl>
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<br>
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<h3>Usage Notes</h3>
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<p>The <strong>fDPIset()</strong> function is typically used if you must free a
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chain of one or more snmp_dpi_set_packet structures. This may be the case if
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you are in the middle of preparing a chain of such structures for a DPI
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RESPONSE packet, but then run into an error before you can actually make the
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response.</p>
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<p>If you get to the point where you make a DPI response packet to which you
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pass the chain of snmp_dpi_set_packet structures, then the
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<strong>mkDPIresponse()</strong> function will free the chain of
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snmp_dpi_set_packet structures. Similarly, if you pass the chain of
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snmp_dpi_set_packet structures to <strong>mkDPItrap()</strong> to make a DPI
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trap request, the storage will be freed.</p>
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<p>Unnecessary free operations may result in an MCH6902 (type 2). If this
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occurs, remove the call to <strong>fDPIset()</strong>.</p>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li>The <<strong>qtossapi.h</strong>> file (see <a href="unix13.htm">Header
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Files for UNIX-Type Functions</a>)<br>
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<br>
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</li>
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<li><a href="respsnmp.htm">mkDPIresponse()</a>--Make a DPI Response Packet<br>
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<br>
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</li>
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<li><a href="setsnmp.htm">mkDPIset()</a>--Make a DPI Set Packet</li>
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</ul>
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<br>
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<h3>Example</h3>
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<p>See <a href="../apiref/aboutapis.htm#codedisclaimer">Code disclaimer information</a>
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for information pertaining to code examples.</p>
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<pre>
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#include <qtossapi.h>
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unsigned char *pack_p;
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snmp_dpi_hdr *hdr_p;
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snmp_dpi_set_packet *set_p, *first_p;
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long int num1 = 0, num2 = 0;
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/* ... */
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/* The subagent was waiting for work from the SNMP agent, and */
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/* a message arrives... */
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hdr_p = pDPIpacket(pack_p); /* Assume pack_p */
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/* analyze packet and assume all OK */ /* points to the */
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/* now prepare response; 2 varBinds */ /* incoming packet. */
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set_p = mkDPIset(snmp_dpi_NULL_p, /* Create first one */
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"1.3.6.1.2.3.4.5.","1.0", /* OID=1, instance=0.*/
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SNMP_TYPE_Integer32,
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sizeof(num1), &num1);
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if (set_p) { /* If successful, then */
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first_p = set_p; /* save pointer to first */
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set_p = mkDPIset(set_p, /* chain. Next one */
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"1.3.6.1.2.3.4.5.","1.1", /* OID=1, instance=1.*/
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SNMP_TYPE_Integer32,
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sizeof(num2), &num2);
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if (set_p) { /*If successful, 2nd one */
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pack_p = mkDPIresponse(hdr_p, /* makes response. */
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SNMP_ERROR_noError, /* It will also free */
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0L, first_p); /* the set_p tree. */
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/* Send DPI response to agent. */
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} else { /* If 2nd mkDPIset fails, */
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fDPIset(first_p); /* it must free chain. */
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}
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}
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</pre>
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<br>
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<hr>
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API introduced: V3R6
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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> |
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<a href="unix.htm">UNIX-Type APIs</a> |
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<a href="aplist.htm">APIs by category</a> </td>
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</tr>
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</table></center>
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</body>
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</html>
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