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CentOS 7.0 - man page for ldap_first_reference (centos section 3)

LDAP_FIRST_REFERENCE(3) 	     Library Functions Manual		  LDAP_FIRST_REFERENCE(3)

       ldap_first_reference,  ldap_next_reference,  ldap_count_references - Stepping through con-
       tinuation references in a result chain

       OpenLDAP LDAP (libldap, -lldap)

       #include <ldap.h>

       int ldap_count_references( LDAP *ld, LDAPMessage *result )

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

       LDAPMessage *ldap_next_reference( LDAP *ld, LDAPMessage *reference )

       These routines are used to step through the continuation  references  in  a  result  chain
       received from ldap_result(3) or the synchronous LDAP search operation routines.

       The  ldap_first_reference()  routine  is used to retrieve the first reference 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 reference message
       in the result chain.

       This pointer should be supplied on a subsequent call to ldap_next_reference() to  get  the
       next  reference	message,  the  result  of  which  should  be supplied to the next call to
       ldap_next_reference(), etc.  ldap_next_reference() will return NULL when there are no more
       reference  messages.   The  reference  messages	returned  from	these  calls  are used by
       ldap_parse_reference(3) to extract referrals and controls.

       A count of the number of reference messages in the search result can be obtained by  call-
       ing  ldap_count_references().   It  can also be used to count the number of reference mes-
       sages remaining in a result chain.

       If an error occurs in ldap_first_reference() or ldap_next_reference(), NULL  is	returned.
       If an error occurs in ldap_count_references(), -1 is returned.

       ldap(3), ldap_result(3), ldap_search(3), ldap_parse_reference(3)

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

OpenLDAP 2.4.39 			    2014/01/26			  LDAP_FIRST_REFERENCE(3)

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