Directory Services


The ldap_modrdn_s function changes the relative distinguished name of an LDAP entry.

This function is obsolete and is provided for backward compatibility with earlier versions of LDAP. For LDAP 3 or later, use the ldap_rename_ext or ldap_rename_ext_s function.

ULONG ldap_modrdn_s(
  LDAP* ExternalHandle,
  PCHAR DistinguishedName,
  PCHAR NewDistinguishedName


[in] The session handle.
[in] A pointer to a null-terminated string that contains the distinguished name of the entry to be changed.
[out] A pointer to a null-terminated string that contains the new relative distinguished name to give the entry.

Return Values

If the function succeeds, the return value is LDAP_SUCCESS.

If the function fails, it returns an error code. For more information, see Return Values.


Use the ldap_modrdn_s function, or its asynchronous equivalent, ldap_modrdn, to change the name of an LDAP entry. This function provides compatibility with LDAP 1. Otherwise, use ldap_modrdn2 or ldap_modrdn2_s.

Be aware that the ldap_modrdn functions enable you to change only the relative distinguished name, which is the least significant component of the object's distinguished name. Effective with version 3, LDAP provides the Modify Distinguished Name protocol operation that allows more general name change access. This feature is available by calling ldap_rename_ext or ldap_rename_ext_s. These functions are recommended, instead of the ldap_modrdn_s function, to change an entry name.


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

See Also

Functions, ldap_modrdn, ldap_modrdn2, ldap_modrdn2_s, ldap_rename_ext, ldap_rename_ext_s