Knowing when a client disconnects

I am in the process of creating a server using C++ and TCPIP. I have created a socket, bound it to a port, set it to list and then accept dynamically created multiple connections (created as new sockets).

How can I find out / be notified that a connection has been disconnected at the client end so that I can clean up the sockets?

Goose

The client has gone when a read on the socket returns 0.

I suggest beej's guide, there's a link to it in the links thread on this forum.

If I had seen those links yesterday I wouldn't have wasted £25 on a TCP/IP Programming book that doesn't have the information anyway.

Thanks for the info