[comp.sys.mac.programmer] MacLayers and zmodem

edwin_l_king@navajo.cis.ohio-state.edu (04/13/90)

  I just FTP'd a nifty little program called MacLayers from
sumex-aim.stanford.edu. It is a compbination of Unix host and mac
software that let you run multiple windows/jobs concurrently on your
Mac when logged into a Unix host over a phone line.
  My problem is that it offers no upload protocol and only xmodem
download protocol.
  The program came with the sources for the Unix side, but not the Mac
side. Does anybody know if the Mac sources are available? I'd like to
modify them to handle zmodem up/downloads.

  On the subject, does anybody know where I can get a reference for
the zmodem protocol?