Directory Services


The ldap_ufn2dn function converts a user-friendly name to a distinguished name.

ULONG ldap_ufn2dn(
  PCHAR ufn,
  PCHAR* pDn


[in] Pointer to a null-terminated string containing the user-friendly name to be converted.
[out] Pointer to a variable that receives a pointer to a null-terminated string containing the resulting distinguished name.

If the pDn parameter comes back as non-NULL, you should free it when you're done with a call to ldap_memfree.

Return Values

If the function succeeds, the return value is LDAP_SUCCESS.

If the function fails, it returns an error code. See Return Values for more information.


The ldap_ufn2dn function attempts to normalize a user-specified name to a distinguished name. For example, consider an LDAP directory format for a common name of "Lastname, Firstname." Given a directory name of "Jane Doe," ldap_ufn2dn will attempt to normalize this to "Doe, Jane." The function follows RFC 1781 (add CN= if not present, add OU= if none present, and so on). If it runs into any problems at all while normalizing, the function returns a copy of what was passed. It then allocates the output string from the LDAP memory pool.


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.
Unicode: Implemented as Unicode and ANSI versions on all platforms.
Header: Declared in Winldap.h.
Library: Use Wldap32.lib.

See Also

Functions, ldap_memfree, Return Values