[Samba] old password in passwordchat empty

[Hans-Peter Bernhard]

Hi,

I am having a problem synchronizing user passwords with an LDAP server.
The samba password works fine but synchronizing the LDAP unixpassword fails.
Samba server and LDAP server are not identically and therefore I need 
the old an the new password for whatever passwd chat.
But %o is an empty string.
I browse through the source code and found:

       /*
       * At this point we have the new case-sensitive plaintext
       * password in the fstring new_passwd. If we wanted to synchronise
       * with UNIX passwords we would call a UNIX password changing
       * function here. However it would have to be done as root
       * as the plaintext of the old users password is not
       * available. JRA.
       */

can anybody help me out ???

hpb