Subj : Re: Kannons and Katapults
To   : Rob Swindell
From : Bob Worm
Date : Wed Dec 10 2025 22:25:38

  Re: Re: Kannons and Katapults
  By: Rob Swindell to Mike Powell on Mon Dec 08 2025 14:50:22

Hi, Rob.

 >          "CR LF" or "CR NUL" is required in both directions
 >          (in the default ASCII mode), to preserve the symmetry of the
 >          NVT model.  Even though it may be known in some situations
 >          (e.g., with remote echo and suppress go ahead options in
 >          effect) that characters are not being sent to an actual
 >          printer, nonetheless, for the sake of consistency, the protocol
 >          requires that a NUL be inserted following a CR not followed by
 >          a LF in the data stream.

This finally explains why I kept triggering a bug on BeeBS a year or two ago - with CR -> CRLF disabled MuffinTerm was sending NULs after the CR and I could never work out why.

To be fair I didn't try that hard to work it out, I just switched CR -> CRLF on and Vela fixed the bug as well for good measure.

But, yeah - thanks for sharing :)

BobW
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