mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
85 lines
2.4 KiB
Groff
85 lines
2.4 KiB
Groff
.TH LDAP_FIRST_MESSAGE 3 "19 September 2001" "OpenLDAP LDVERSION"
|
|
.\" $OpenLDAP$
|
|
.\" Copyright 1998-2001 The OpenLDAP Foundation All Rights Reserved.
|
|
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
|
|
.SH NAME
|
|
ldap_first_message, ldap_next_message, ldap_count_messages \- Stepping
|
|
through messages in a result chain
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.ft B
|
|
#include <ldap.h>
|
|
.LP
|
|
.ft B
|
|
int ldap_count_messages( LDAP *ld, LDAPMessage *result )
|
|
.LP
|
|
.ft B
|
|
LDAPMessage *ldap_first_message( LDAP *ld, LDAPMessage *result )
|
|
.LP
|
|
.ft B
|
|
LDAPMessage *ldap_next_message( LDAP *ld, LDAPMessage *message )
|
|
.SH DESCRIPTION
|
|
.LP
|
|
These routines are used to step through the messages in a result chain
|
|
received from
|
|
.BR ldap_result (3) .
|
|
For search operations, the result chain can contain referral, entry
|
|
and result messages. The
|
|
.BR ldap_msgtype (3)
|
|
function can be used to distinguish between the different message types.
|
|
.LP
|
|
The
|
|
.B ldap_first_message()
|
|
routine is used to retrieve the first message in a result chain.
|
|
It takes the \fIresult\fP as returned by a call to
|
|
.BR ldap_result (3) ,
|
|
.BR ldap_search_s (3)
|
|
or
|
|
.BR ldap_search_st (3)
|
|
and returns a pointer to the first message in the result chain.
|
|
.LP
|
|
This pointer should be supplied on a subsequent call to
|
|
.B ldap_next_message()
|
|
to get the next message, the result of which should be
|
|
supplied to the next call to
|
|
.BR ldap_next_message() ,
|
|
etc.
|
|
.B ldap_next_message()
|
|
will return NULL when there are no more messages.
|
|
.LP
|
|
These functions are useful when using routines like
|
|
.BR ldap_parse_result (3)
|
|
that only operate on the first result in the chain.
|
|
.LP
|
|
A count of the number of messages in the result chain can be obtained
|
|
by calling
|
|
.BR ldap_count_messages() .
|
|
It can also be used to count the number of remaining messages in a chain
|
|
if called with a message, entry or reference returned by
|
|
.B ldap_first_message() ,
|
|
.B ldap_next_message() ,
|
|
.BR ldap_first_entry (3) ,
|
|
.BR ldap_next_entry (3) ,
|
|
.BR ldap_first_reference (3) ,
|
|
.BR ldap_next_reference (3) .
|
|
.SH ERRORS
|
|
If an error occurs in
|
|
.B ldap_first_message()
|
|
or
|
|
.BR ldap_next_message() ,
|
|
NULL is returned. If an error occurs in
|
|
.BR ldap_count_messages() ,
|
|
-1 is returned.
|
|
.SH SEE ALSO
|
|
.BR ldap(3),
|
|
.BR ldap_search(3),
|
|
.BR ldap_result(3),
|
|
.BR ldap_parse_result(3),
|
|
.BR ldap_first_entry(3),
|
|
.BR ldap_first_reference(3)
|
|
.SH ACKNOWLEDGEMENTS
|
|
.B OpenLDAP
|
|
is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).
|
|
.B OpenLDAP
|
|
is derived from University of Michigan LDAP 3.3 Release.
|