ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/ldap_first_msg.htm

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<title>ldap_first_message()--Retrieve First LDAP Message</title>
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<h2>ldap_first_message()--Retrieve First LDAP Message</h2>
<div class="box" style="width: 80%;">
<br>
&nbsp;&nbsp;Syntax<br>
<pre>
#include &lt;ldap.h&gt;
LDAPMessage *ldap_first_message(LDAP <em>*ld</em>,
LDAPMessage <em>*result</em>)
</pre>
<br>
&nbsp;&nbsp;Library Name/Service Program: QSYS/QGLDCLNT<br>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Threadsafe: Yes<br>
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<p>The <strong>ldap_first_message()</strong> routine is used to step through
the list of messages in a result chain, as returned by <a href=
"ldap_result.htm">ldap_result()</a>. It is used to return a pointer to the
first message in the list.</p>
<br>
<h3>Authorities and Locks</h3>
<p>No i5/OS authority is required.</p>
<br>
<h3>Parameters</h3>
<dl>
<dt><strong><em>ld</em></strong></dt>
<dd>(Input) The LDAP pointer returned by a previous call to
<a href="ldap_init.htm">ldap_init()</a>,
<a href="ldap_ssl_init.htm">ldap_ssl_init()</a> , or
<a href="ldap_open.htm">ldap_open()</a>.<br>
<br>
</dd>
<dt><strong><em>result</em></strong></dt>
<dd>(Input) The result returned by a call to
<a href="ldap_result.htm">ldap_result()</a> or one of the synchronous search routines
(<a href="ldap_search_s.htm">ldap_search_s()</a>,
<a href="ldap_search_st.htm">ldap_search_st()</a>, or
<a href="ldap_search_ext_s.htm">ldap_search_ext_s()</a>).</dd>
</dl>
<br>
<h3>Return Value</h3>
<dl>
<dt><strong>LDAPMessage *</strong></dt>
<dd>Pointer to the first message.<br>
<br>
</dd>
<dt><strong>NULL</strong></dt>
<dd>when no message exists in the result set or if an error occurs.</dd>
</dl>
<br>
<h3>Error Conditions</h3>
<p>If <strong>ldap_first_message()</strong> is not successful, <em>
ld_errno</em> will be set to indicate the error. See <a href=
"ldap_error_condt.htm">LDAP Client API Error Conditions</a> for possible LDAP
error code values. Use <a href="ldap_get_errno.htm">ldap_get_errno()</a>
function to retrieve the error information.</p>
<br>
<h3>Error Messages</h3>
<p>The following message may be sent from this function.</p>
<table cellpadding="5">
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<tr>
<th align="left" valign="top" nowrap>Message ID</th>
<th align="left" valign="top">Error Message Text</th>
</tr>
<tr>
<td align="left" valign="top">CPF3CF2 E</td>
<td align="left" valign="top">Error(s) occurred during running of
ldap_first_message API.</td>
</tr>
</table>
<br>
<br>
<h3>Related Information</h3>
<ul>
<li><a href="ldap_count_msg.htm">ldap_count_messages()</a> -- Return the number
of message in a result chain.</li>
<li><a href="ldap_first_entry.htm">ldap_first_entry()</a> -- Retrieve first
LDAP entry.</li>
<li><a href="ldap_first_ref.htm">ldap_first_reference()</a> -- Return first
continuation reference in a chain of search results.</li>
<li><a href="ldap_msgfree.htm">ldap_msgfree()</a> -- Free LDAP result
message.</li>
<li><a href="ldap_msgid.htm">ldap_msgid()</a> -- Retrieve message ID associated
with an LDAP message.</li>
<li><a href="ldap_msgtype.htm">ldap_msgtype()</a> -- Retrieve type of an LDAP
message.</li>
<li><a href="ldap_next_msg.htm">ldap_next_message()</a> -- Retrieve next LDAP
message.</li>
<li><a href="ldap_result2error.htm">ldap_result2error()</a> -- Retrieve LDAP
error information</li>
</ul>
<br>
<hr>
API introduced: V4R5
<hr>
<table align="center" cellpadding="2" cellspacing="2">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
"dirserv1.htm">LDAP APIs</a> | <a href="aplist.htm">APIs by
category</a></td>
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