Okay, so I have now had a chance try this under both Win32 and Linux. The results are the opposite of my original code. This code successfully times out under Win32, but not under Linux. You have to wait 20+ seconds if you connect to a non responsive host.
I suppose I could write two separate subs and key off which OS it's running under. Or incorporate the alarm code (that works under Linux) into this for a belt-and-suspenders approach to breaking the call. So I do have a workable, if not gangly, solution.
But can you see a reason why this shouldn't also work under Linux?
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