83 lines
3.0 KiB
HTML
83 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>Controls for LDAP APIs</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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<!-- 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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<!--File Edited April 2001 -->
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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 language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Controls for LDAP APIs</h2>
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<p>Certain LDAP Version 3 operations can be extended with the use of controls.
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Controls can be sent to a server, or returned to the client with any LDAP
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message. This type of control is called a server control.</p>
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<p>The LDAP API also supports a client-side extension mechanism, which can be
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used to define client controls. The client-side controls affect the behavior of
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the LDAP client library, and are never sent to the server. Note that
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client-side controls are not defined for this client library.</p>
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<p>A common data structure is used to represent both server-side and
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client-side controls:</p>
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<pre>
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typedef struct ldapcontrol {
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char *ldctl_oid;
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struct berval ldctl_value;
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char ldctl_iscritical;
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} LDAPControl, *PLDAPControl;
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</pre>
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<p>The LDAPControl fields have the following definitions:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td align="left" valign="top"><strong><em>ldctl_oid</em></strong></td>
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<td align="left" valign="top">The control type, represented as a string.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><strong><em>ldctl_value</em></strong></td>
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<td align="left" valign="top">The data associated with the control. Note that
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the control may not include data.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><strong><em>ldctl_iscritical</em></strong></td>
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<td align="left" valign="top">Whether the control is critical. If the field is
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nonzero, the operation will be carried out only if it is recognized and
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supported by the server (or the client for client-side controls).</td>
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</tr>
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</table>
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<br>
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<hr>
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<table align="center" cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="dirserv1.htm">Directory Services
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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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</body>
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</html>
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