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Finding an available port for chat

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Finding an available port for chat

Subject: Finding an available port for chat
From: Development <email@hidden>
Date: Fri, 17 Jul 2009 15:15:16 -0700

I'm working on a little chat app. It's going to function very similar to a peer to peer app but across the internet. I have found the information i need on creating a stream once I know the address. but there will be persons like myself with draconian isp who block gobs of ports and make it hard to for chat apps to work. So I am curious, how can I, in a reasonably economic way, find an open port to talk on? Can I pass null to CFStreamCreatePairWithSocketToHost for the port and have it find the port on it's own? Or do I need to hard code a port? _______________________________________________

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Re: Finding an available port for chat
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