-- Accepts a file offer from a remote user. Called when the on_dcc callback
-- retuns true.
-- @param filename Name to save the file as
--- @param address IP address of the remote user
+-- @param address IP address of the remote user in low level int form
-- @param port Port to connect to at the remote user
-- @param packet_size Size of the packets the remote user will be sending
function _accept(filename, address, port, packet_size)