On Mon, Oct 09, 2006 at 03:00:19PM +0200, Francois Visconte wrote:
> For exemple, libevent code is not included in a 'evenctl' binary.

That seems like a silly example---a program wanting to use libevent
could not easily be restructured to use a hypothetical `eventctl'
program, whereas a program that wants to manipulate the pf ruleset
could easily fork/exec `pfctl' with the appropriate arguments and pipe
the changes to it.