[syslog-ng]Filter enhancement

Gregor Binder gb@rootnexus.net
Tue, 4 Dec 2001 23:07:34 +0100

Jay Guerette on Tue, Dec 04, 2001 at 04:28:24PM -0500:


> A message could be sent to the external process via STDIN, it is evaluated
> and conditionally sent back via STDOUT. If a message is to be dropped
> according to the filter criteria of the external process, it would have to
> sendback a NULL character to syslog-ng as an indicator.
> I realize that you could set up a program as a destination, and have that
> program filter and format and re-send those messages to syslog, but that
> seems cumbersome, and also could potentially double the processing that
> syslog-ng would have to do.

I don't see much difference vs. setting up a FIFO source and a program
destination. To avoid overhead, you can direct input from the FIFO
source directly to its destination. Have your external filter send out-
put to the pipe and there you go.


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