FIONREAD on Interactive

[Per Andersson]

Hi.

I've got a problem - while attempting to port a package from BSD Unix to
Interactive 2.0.1 I ran into a function ( ? ) called FIONREAD. Does anybody
know how to emulate / replace this ? It seems to retrieve the number of 
unread bytes on a stream or something like this.

Per
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Per Andersson
Royal Institute of Technology, Stockholm, Sweden
perand at admin.kth.se, @nada.kth.se