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Old 02-08-2010, 05:15 PM   #1
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Question Determining address for UDP sendto calls after a prior TCP connection

I am using C and the POSIX libraries.

I establish a TCP connection between a server and a client which I use to send low bandwidth control commands in both directions using 'send' and 'recv'.

I then want to stream audio from the server to the client using UDP through the call 'sendto'. However, I would do not know how to quickly set up the 4th and 5th parameters of the call. These being: struct sockaddr *to & socklen_t tolen. Ideally I would imagine I could use the information from the 'accept' call that the server already used to setup the TCP connection.

Would anyone know how I would go about this?
Old 02-09-2010, 10:53 AM   #2
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Here is a great resource, which will answer this (and many other!) questions for you:

Beej's Guide to Network Programming

Please download, install and experiment with: Wireshark


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