[Dovecot] bsdauth with cache_key failed

[Christian Rueger]

hi

i test bsdauth with cache_key=%u on OpenBSD and get this error

Oct  8 10:04:11 pegasus dovecot: Dovecot v1.2.6 starting up
Oct  8 10:04:12 pegasus dovecot: auth(default): Panic: file passdb.c: 
line 201 (passdb_init): assertion failed: 
(passdb->passdb->default_pass_scheme != NULL || passdb->passd
b->cache_key == NULL)
Oct  8 10:04:12 pegasus dovecot: dovecot: child 8407 (auth) killed with 
signal 6 (core not dumped) 

Oct  8 10:04:12 pegasus dovecot: dovecot: Fatal: Auth process died too 
early - shutting down

# 1.2.6: /etc/dovecot.conf
# OS: OpenBSD 4.6 i386
base_dir: /var/dovecot/
protocols: imaps
listen: *, [::]
ssl_cert_file: /etc/ssl/certs/imap.pem
ssl_key_file: /etc/ssl/private/imap.pem
login_dir: /var/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
login_user: _dovecot
login_max_processes_count: 32
max_mail_processes: 32
first_valid_uid: 1000
first_valid_gid: 1000
mail_location: maildir:~/Maildir
mbox_write_locks: fcntl
mail_plugins: expire
lda:
   postmaster_address: postmaster at rueger-net.de
   hostname: pegasus.rueger-net.de
   mail_plugins: expire sieve
   auth_socket_path: /var/dovecot/auth-master
auth default:
   cache_size: 1024
   passdb:
     driver: bsdauth
     args: cache_key=%u
   userdb:
     driver: passwd
   socket:
     type: listen
     client:
       path: /var/spool/postfix/private/auth
       mode: 438
       user: _postfix
     master:
       path: /var/dovecot/auth-master
       mode: 384
plugin:
   expire: Trash* 7 Spam* 7 Lists* 30
   expire_dict: proxy::expire
   auth_socket_path: /var/dovecot/auth-master
   sieve_dir: ~/.sieve
dict:
   expire: sqlite:/etc/dovecot/expire.conf