1983-02-18 /bb-ev83b-bm/01/tcpip-sources/ftp2s.mac 1983-02-18 /bb-ev83b-bm_longer/01/tcpip-sources/ftp2s.mac 1983-02-18 /tops20_v7_0_tcpip_distribution_tape/01/tcpip-sources/ftp2s.mac