CBCHAIN(trans_ac, struct transfer *transfer, wchar_t *attrib);
CBCHAIN(trans_p, struct transfer *transfer);
CBCHAIN(trans_act, struct transfer *transfer);
CBCHAIN(trans_ac, struct transfer *transfer, wchar_t *attrib);
CBCHAIN(trans_p, struct transfer *transfer);
CBCHAIN(trans_act, struct transfer *transfer);