On Monday, October 14th, 2024 at 17:03, Chuck Guzis via cctalk 
<cctalk@classiccmp.org> wrote:

> > (Leech-Zmodem would tell the BBS side that there was a CRC error on the
> > line on the last blocks and back up the position, then cancel the
> > transfer so the transfer was "unsuccessful" to the BBS software and
> > didn't hurt upload/download ratios. But it captured the complete file.)

So /that's/ what Leech-Zmodem was.  I knew it was banned on just about every
board in my NPA, and asking about it (or getting caught using it) was a bannable
offense.  Cute.

> Heck, last year I coded a version of Ymodem for an embedded application.
> It's pretty easy when all you have is a serial connection.

I keep copies of the Xmodem and Kermit protocol specs in my wiki in case I
need them again.  Working in airgapped environments means that sometimes you
don't have the right tool for the job.

The Doctor [412/724/301/703/415/510]
WWW: https://drwho.virtadpt.net/
Don't be mean. You don't have to be mean.

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