libalias/natd and identd support

[Krzysztof Drewicz]

Right now when natd'ing boxes one have to supply a random (fake) ident 
respone, or simply RST on tcp/135. Libalias&natd could provide simple way
to ask 'what is real src ip/port' by knowing outgoin port and IP combination.

I've written small patch for that. Natd binds additonal AF_UNIX/DGRAM 
socket, and asks libalias about connections.

They can be fetched from here: http://pancake.sggw.waw.pl/~hunter24/libalias/

Maybe someone could help me w/ integrating 'client.c'
 into oidentd/src/freebsd.c file or merge it with current development tree ?

/usr/src/lib/libalias # cvs diff -u -N -d alias.h alias_db.c  | wc -l
157
/usr/src/sbin/natd # cvs diff -u -b -N -d . | wc -l
317
/usr/src/sbin/natd # wc -l client.c ident.c
      89 client.c
      48 ident.c
     137 total


-- 
Krzysztof Drewicz
Podsłuchane na pogrzebie: "Wiem, że to niezręcznie pytać o takie rzeczy w tej 
chwili, ale przypominasz sobie, żeby on kiedykolwiek wspomniał coś o kodzie 
źródłowym?" 						--- Charles Addams