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Date: Wed, 22 Jan 1997 13:06:28 +1100 (EST)
From: Wayne Farmer <wayne@telstra.net>
To: freebsd-questions@freebsd.org
Subject: FD_SETSIZE kernel settings
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Could someone explain how FD_SETSIZE affects things ?

If one requires it to be more than 256 as defined in 
/usr/include/sys/types.h, is it just a matter of changing the value in :
/usr/include/sys/types.h
AND
/sys/sys/types.h
AND re-building the kernel and any affected applications.

How often will this be important and if so, will it appear as a parameter 
in /sys/i386/conf/LINT

I admit to being a little confused by the defaults for file descriptors 
in /bin/sh, modifications to this using sysctl and mods using limit in 
csh/tcsh

Thanks for your time in what is probably a buzy period for the development 
team.

Thanks 

Wayne