added windows implementation

core/net/socket_windows.odin

@@ -189,6 +189,20 @@ _bound_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: Listen_Error) {
 	return
 }
 
+@(private)
+_peer_endpoint :: proc(sock: Any_Socket) -> (ep: Endpoint, err: TCP_Recv_Error) {
+	sockaddr: win.SOCKADDR_STORAGE_LH
+	sockaddrlen := c.int(size_of(sockaddr))
+	res := win.getpeername(win.SOCKET(any_socket_to_socket(sock)), &sockaddr, &sockaddrlen)
+	if res < 0 {
+		err = _tcp_recv_error()
+		return
+	}
+
+	ep = _sockaddr_to_endpoint(&sockaddr)
+	return
+}
+
 @(private)
 _accept_tcp :: proc(sock: TCP_Socket, options := DEFAULT_TCP_OPTIONS) -> (client: TCP_Socket, source: Endpoint, err: Accept_Error) {
 	for {