[horde] passwd does not substitute placeholder in backend.conf

[Franz Georg Köhler]

Hello averyone,

I recently set up horde with passwd.

Passwd is supposed to use a mySQL backend.


Unfortunately, passwd does not replace the placeholder in backend.conf
(%u):

Dec 17 19:55:17 HORDE [debug] [passwd] SQL Query by Passwd_Driver_sql::_lookup(): SELECT clearpw FROM testpop WHERE domain_name = SUBSTRING_INDEX(?, @, -1) AND  local_part = SUBSTRING_INDEX(?, @, 1) [on line 110 of "horde/passwd/lib/Driver/sql.php"]

Actually, passwd should replace %u with the user's name and %p with the
user's password.

Instead, we see just a ?.

Could this be related to the fact that authentification is handled by
IMP via IMAP?