Date   : Thu, 08 Dec 1988 14:54:39 GMT
From   : diamond.bbn.com!milazzo@bbn.com (Paul Milazzo)
Subject: Need TCP/IP for CP/M

Many readers believe TCP/IP is simply too big for the CP/M environment;
in fact, small implementations fit.  In mid-1986, I ported Geoffrey
Cooper's TINYTCP to CP/M, fixing a number of protocol errors in the
process.  TINYTCP has a trivial IP layer, and a retransmission policy
that can only be described as mindless, but it seems to work.  It is
written entirely in C.

I never bothered to implement a SLIP interface, but applications can
talk to each other through the loopback interface.  A .COM file
containing:

    - TCP/IP,
    - the loopback driver,
    - two trivial test applications that exchange TCP segments, and
    - a packet trace printer,

compiled with the Z80 version of Aztec C 1.06D, is 18048 bytes long.

                               Paul Milazzo <milazzo@bbn.com>
                               BBN Laboratories
                               Cambridge, MA


End of INFO-CPM Digest
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