void silc_socket_alloc(int sock, SilcSocketType type, void *user_data,
                           SilcSocketConnection *new_socket);

    Allocates a new socket connection object. The allocated object is
    returned to the new_socket argument. The `sock' is the socket
    for the connection, the `type' the initial type of the connection and
    the `user_data' a application specific pointer.