Milter-greylist

Hello Manu et al,

   Today I've caught a crash of milter-greylist, here are some details.

   The last entries in log were:

Aug 12 16:16:23 ucs milter-greylist: [ID 471652 mail.debug] Incoming 
connection from host 'tcp-daemon.imap.ucs.domain.ru'
Aug 12 16:16:23 ucs milter-greylist: [ID 447650 mail.error] unexpected AF

   The "host name" is a Messaging Server queue name with the trailing
name of the local MTA host. This string is not resolvable to an IP
address via DNS or local /etc/hosts (as of yet, at least).

   The "unexpected AF" leads me (in source) to 380:p0f.c function
p0f_lookup() - here it tries to interpret priv->priv_addr, gets to
default (not AF_INET nor AF_INET6) and falls out.

   I am not sure if these two clues are hard-linked, or if the queue
handler does not set some macros that are present during a live SMTP
dialog with a remote host. Still, I wonder if "localaddr" should come
into play as a fallback here as well?

   My workaround for now would be to disable p0f in config, and later
to disable milter-greylist for internal server processing - can't
find where it gets called here, and have more urgent quests now...

   Ideas welcome, though...
Thanks,
//Jim Klimov