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Edit File : ldap_first_message.3 \| Size : 2.58 KB
.lf 1 stdin .TH LDAP_FIRST_MESSAGE 3 "2018/03/22" "OpenLDAP 2.4.46" .\" $OpenLDAP$ .\" Copyright 1998-2018 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 LIBRARY OpenLDAP LDAP (libldap, \-lldap) .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 .lf 1 ./../Project .\" Shared Project Acknowledgement Text .B "OpenLDAP Software" is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>. .B "OpenLDAP Software" is derived from the University of Michigan LDAP 3.3 Release. .lf 83 stdin Back

Edit File : ldap_first_message.3 | Size : 2.58 KB

.lf 1 stdin
.TH LDAP_FIRST_MESSAGE 3 "2018/03/22" "OpenLDAP 2.4.46"
.\" $OpenLDAP$
.\" Copyright 1998-2018 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 LIBRARY
OpenLDAP LDAP (libldap, \-lldap)
.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
.lf 1 ./../Project
.\" Shared Project Acknowledgement Text
.B "OpenLDAP Software"
is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>.
.B "OpenLDAP Software"
is derived from the University of Michigan LDAP 3.3 Release.  
.lf 83 stdin

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