ipfw <> ipf can I change the order packets get in?

[hugle]

Hello all.
I've found this patch:
http://unia.3lo.lublin.pl/~pawmal/freebsd/ip_output-ipfw-ipf.diff

this patch should change the order in which packets go via,
ipfw or ipf first..

could oneone give me .diff for
in ipfw > ipf
out ipf > ipfw

and 2nd.diff for
in ipf > ipfw
out ipfw > ipf

i mean to translate these code into such codes:)

thanks

thanks.

-- 
Best regards,Hugle