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Hi, I've followed Iczelions guide to winsock programming, but I'm still not clear on ports. It covers in depth the use of sockets and connecting to sockets using ports, but it doesn't cover listen() at all.

I've figured out how to use listen, except I don't know how to make it listen to a specific port. How do you do this? If you can call connect with it set to port xxxx how does your server program know to listen on port xxxx?

hmm... i'll post a snipet from my HTTP server (under dev - just started two days ago):

.data ?

sa			sockaddr_in	<?>

.code

...

		invoke	WSAStartup,02h,addr wsdata

		invoke	socket,AF_INET,SOCK_STREAM,0

		mov		hSock,eax

		.if	eax==INVALID_SOCKET

			invoke	MessageBox,0,addr ErrMsg,0,0

			invoke	PostQuitMessage,0

		.endif

		invoke	htons,80		;Port 80

		mov		sa.sin_port,ax

		mov		sa.sin_family,PF_INET

		mov		sa.sin_addr,0			;any interface

		invoke WSAAsyncSelect,hSock,hWnd,WM_SOCKET,FD_ACCEPT

		invoke	bind,hSock,addr sa,sizeof sockaddr_in

		.if		eax==SOCKET_ERROR

			invoke	closesocket,addr sa

			invoke	MessageBox,0,addr ErrMsg,0,0

		.endif

		invoke	listen,hSock,8