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Date: Wed, 1 Mar 1995 14:22:20 -0500 From: "Charles M. Hannum" <mycroft@ai.mit.edu> To: tytso@MIT.EDU Cc: ghudson@MIT.EDU, linux-dev@MIT.EDU, netbsd-dev@MIT.EDU It's detected when you call recv() --- no timeout is necessary because you either get a UDP packet back, or an ICMP port unreachable. That's fine for protocols where you actually get a reply to every packet...
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