redirection tricks on processor invocation

[Joan Picanyol i Puig <lists-supervision@biaix.org>]

Dear all,

I have an application that generates aggregate reports from separate
log streams. In order to avoid loosing data, it should be invoked as a
processor from all of it's sources log directories. The application
reads from stdin (and thus know what stream it is called from and what
other streams should look at). However, I don't the resultant log file
to be altered (since I must archive it for auditing purposes).

I've been struggling to find the correct fd copying and redirections so
that whenever runit feeds @*.u to my processor a copy of it is sent to
stdout (the application writes to a separate location), but to no avail. 

In summary, I want a copy of my processor's stdin to be seen by svlogd
as my processor's stdout. Any ideas?

tks
-- 
pica