The following is a description of the NCSA/BYU Telnet program...
 
BYU has implemented a very primitive ftp client in the NCSA Telnet 
application for the Macintosh.  This means that you can use this 
application to do high speed "MacBinary" transfers between Macintosh 
systems that are connected to the same network.  You can also FTP 
directly from a Mac to any FTP servers (like sumex-aim at Stanford), 
which you can not do with the original NCSA Telnet application.

There is no cost for this application, and the source code is 
available for both MPW and LightSpeed C.

Note:  NCSA is not responsible for maintenance of this version, so 
please don't bother them with problem reports.  Instead, send 
problems and suggestions to Jim Logan at "loganj@yvax.byu.edu".

This ftp client is implemented in the non-Mac "command and scroll" style 
(of older and lower life forms).  We're making this version available 
now for others who need the outgoing ftp capability and aren't fussy 
about interface elegance.  

Known problems:  

1. Only one outgoing ftp session can be active at one time, but it does 
   work okay with simultaneous Telnet sessions and incoming ftp activity.

2. There is no "ftp>" prompt as you find on most other systems.  So when 
   an ftp session is established you login by typing "user username", 
   then type your password on the next line.  We'll fix the user interface 
   after we decide what to do and when we have time to work on it.

This is not a commitment to provide maintenance support, and since we're 
busy we might not be able to respond.

VERSION 2.3.1 improvements...

  1.  NCSA's FTP client code added.

  2.  Holding down the shift key while pressing "cmd F" during a "Telnet"
      session sends the FTP command without the "-n", which is necessary 
      for some non-unix systems like VAX/VMS.

VERSION 2.3.2 improvements...

  1.  Problem with the VT100 emulation of scrolling
      regions which causes the Mac to crash in some situations.  

  2.  FTP client "MGET" and "MPUT" functions are working properly, and
      ftp server "NLST" related functions (i.e., MPUT & MGET) work much better.

VERSION 2.3.3 problems & improvements...

  1.  Problem reported by Ted Nieland of Control Data Corporation (25 Jun 1990):
      Session one:  A telnet session to a host
      Session two: A FTP client session to same host as session one.
      Start a MGET from session two.
      Switch to session one.  After the current file gets finished in session 
      two, session one turns into a ftp session
      and the further requests from the MGET go to it and subsequently fail.

      Status:  Fixed.

  2.  Requested improvement from Russell Owen (31 Aug 1990):
      Implement a way of opening an ftp session purely from the keyboard;
      either by bringing up the Open Session... dialog box with "ftp"
      already checked (e.g. by cmd-option-O), or by allowing some key
      command to toggle the "ftp" check box.

      Status:  Done: Command F now toggles the "FTP Session" check box.

  3.  Problem reported by "PWF@vx.acs.umn.edu":
      During the option negotiation between NCSA Telnet and the Multinet server
      an '!' exclamation mark keeps on appearing before the Username: prompt.
      Has anyone run into this before?  I'm using NCSA Telnet 2.3g for the
      Macintosh.  I haven't run into it yet logging into any other system 
      except Vaxen using Multinet.

      Status:  Fixed, and reported to NCSA.

  4.  FTP client "mget" function not working on Mac II FX.

      Status:  Fixed.

VERSION 2.3.4 improvements...

  1.  Problem & solution reported by David Palmer (16 Dec 1990):
      Tektronix graphics "x coordinates can be up to 3 pixels off, which 
      means that if you have a line in two segments, the ends don't match 
      up properly.

      Status:  Fixed.

  2.  Dynamic IP assignment broken in version 2.3.3.

      Status:  Fixed.

Future:

  1.  FTP client initiated file transfers that fail with a result code of "5XX" 
      leave the Macintosh file open until the application quits.

      Status:  Not fixed yet.

Regards,
Jim Logan
bitnet:    loganj@byuvax.bitnet
internet:  loganj@yvax.byu.edu