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(ITS#4926) german special characters ( Umlaute ) in Password

Full_Name: Marcel Birkenkamp
Version: 2.1.22 
OS: HP-UX 11.11
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (


i have a problem submitting passwords containing german special characters
(Umlaute ä,ü,ö & ß) by using the OpenLDAP Function ldap_simple_bind_s to our
Active Directory Server. After investigating the issue it seems as if the
password is cut off at the position of the special char, since it is possible to
log in a user with his password (without special characters) if i use the
correct password and add one of these characters to the end. Example:
password for user: test
submitted: testö
this would succeed

the problem is if a user i.e. enters the password: bäume
the submitted password is: b

Is there a fix/workaround for this?

btw: i'm using this in a c program.

Thanks in advance.