Directory Services


The ldap_first_reference function returns the first reference from a message.

LDAPMessage* ldap_first_reference(
  LDAP* ld,
  LDAPMessage* res


[in] The session handle.
[in] The search result, as obtained by a call to one of the synchronous search routines or ldap_result.

Return Values

If the search returned valid results, this function returns a pointer to the first result reference. If no entry or reference exists in the result set, it returns NULL. This is the only error return; the session error parameter in the LDAP data structure is cleared to 0 in either case.


Use ldap_first_reference in conjunction with ldap_next_reference to step through and retrieve a list of continuation references from a search result chain.

The function returns subordinate referrals (references) that are returned in search responses. A subordinate referral is one in which the server has returned some data and the referral has been passed to other naming contexts below the current level in the tree. To step through external references in which the naming context does not reside on the server, use ldap_parse_result instead.

You do not have to explicitly free the returned reference as it is freed when the message itself is freed.


Client: Included in Windows XP and Windows 2000 Professional.
Server: Included in Windows Server 2003 and Windows 2000 Server.
Redistributable: Requires Active Directory Client Extension on Windows NT 4.0 SP6a and Windows 95/98/Me.
Header: Declared in Winldap.h.
Library: Use Wldap32.lib.

See Also

Functions, ldap_next_reference, ldap_parse_result, ldap_result