[PATCH 4/6] filter: add fprintf_filter function

[Jason A. Donenfeld]

On Sun, Jan 12, 2014 at 8:35 PM, John Keeping <john at keeping.me.uk> wrote:
> I'm looking at splitting up the data so there is a filter object that
> contains function pointers to implementation functions and then some
> data that is specific to to given filter type.  With that change, cmd
> moves to the "exec filter" structure and is no longer accessible.  I'm
> expecting some filter types to have a structured value in the config
> file that will be parsed to multiple fields which will be glued back
> together in the fprintf function for that filter type.

Compelling enough. Merging this and the subsequent ones into
jd-jk/filterinfra. I'm doing a few extra patches on top of these as we
speak. Expect an email shortly when I'm finished.