ldap_first_message(3) — Linux manual page


LDAP_FIRST_MESSAGE(3)   Library Functions Manual   LDAP_FIRST_MESSAGE(3)

NAME         top

       ldap_first_message, ldap_next_message, ldap_count_messages -
       Stepping through messages in a result chain

LIBRARY         top

       OpenLDAP LDAP (libldap, -lldap)

SYNOPSIS         top

       #include <ldap.h>

       int ldap_count_messages( LDAP *ld, LDAPMessage *result )

       LDAPMessage *ldap_first_message( LDAP *ld, LDAPMessage *result )

       LDAPMessage *ldap_next_message( LDAP *ld, LDAPMessage *message )

DESCRIPTION         top

       These routines are used to step through the messages in a result
       chain received from ldap_result(3).  For search operations, the
       result chain can contain referral, entry and result messages. The
       ldap_msgtype(3) function can be used to distinguish between the
       different message types.

       The ldap_first_message() routine is used to retrieve the first
       message in a result chain.  It takes the result as returned by a
       call to ldap_result(3), ldap_search_s(3) or ldap_search_st(3) and
       returns a pointer to the first message in the result chain.

       This pointer should be supplied on a subsequent call to
       ldap_next_message() to get the next message, the result of which
       should be supplied to the next call to ldap_next_message(), etc.
       ldap_next_message() will return NULL when there are no more

       These functions are useful when using routines like
       ldap_parse_result(3) that only operate on the first result in the

       A count of the number of messages in the result chain can be
       obtained by calling 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
       ldap_first_message() , ldap_next_message() , ldap_first_entry(3),
       ldap_next_entry(3), ldap_first_reference(3),

ERRORS         top

       If an error occurs in ldap_first_message() or
       ldap_next_message(), NULL is returned.  If an error occurs in
       ldap_count_messages(), -1 is returned.

SEE ALSO         top

       ldap(3), ldap_search(3), ldap_result(3), ldap_parse_result(3),
       ldap_first_entry(3), ldap_first_reference(3)


       OpenLDAP Software is developed and maintained by The OpenLDAP
       Project <http://www.openldap.org/>.  OpenLDAP Software is derived
       from the University of Michigan LDAP 3.3 Release.

COLOPHON         top

       This page is part of the OpenLDAP (an open source implementation
       of the Lightweight Directory Access Protocol) project.
       Information about the project can be found at 
       ⟨http://www.openldap.org/⟩.  If you have a bug report for this
       manual page, see ⟨http://www.openldap.org/its/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://git.openldap.org/openldap/openldap.git⟩ on 2021-08-27.
       (At that time, the date of the most recent commit that was found
       in the repository was 2021-08-26.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to


Pages that refer to this page: ldap_parse_reference(3)ldap_result(3)