Directory Services


The ldap_modify_s function changes an existing entry.

ULONG ldap_modify_s(
  LDAP* ld,
  PCHAR dn,
  LDAPMod* mods[]


[in] The session handle.
[in] A pointer to a null-terminated string that contains the name of the entry to modify.
[in] A null-terminated array of modifications to make to the entry.

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_modify_s function initiates a synchronous operation to modify an existing entry. If values are being added to or replaced in the entry, the function creates the attribute, if necessary. If values are being deleted, the function removes the attribute if no values remain. All modifications are performed in the order in which they are listed.

Multithreading: Calls to ldap_modify_s are thread-safe.

Note  When connecting to an LDAP 2 server, the application must perform a bind operation (by calling one of the ldap_bind or ldap_simple_bind routines) before attempting any other operations.


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, LDAPMod, ldap_bind, ldap_simple_bind, ldap_modify, ldap_modify_ext, ldap_modify_ext_s, Modifying a Directory Entry, Return Values