Re: CAsyncSocket ports

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Mon, 06 Aug 2007 09:46:00 -0400
RAN wrote:


Is it possible to have both a connecting socket and a listening socket
both on port 6 in the same application ?
I have 2 applications both with a listening and a connecting socket to
each other. If i call GetPeerName() it returns for the port number
1051 instead of 6 which i connected with.
It's possible that this is not the way to use socketcommunication but
its just a little experiment because i had some problems with
OnReceive using 1-on-1 socket connections. So now im trying a socket
for outgoing data and a socket for incomming data. Any comments on the
port number return of 1051 ?

You can have a listening socket on port 6, and the listening socket on
the other machine on port 6. So both of your "connecting" sockets
(meaning client sockets, I assume) can always call port 6. But their
local socket port number should be defaulted (use 0) and should not
matter. You can expect winsock to select a free port (like the 1051)

Scott McPhillips [MVP VC++]

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