[dns-operations] creeping poorness of judgement

Viktor Dukhovni ietf-dane at dukhovni.org
Sat Mar 14 06:12:39 UTC 2020


On Mar 14, 2020, at 1:26 AM, Paul Vixie <paul at redbarn.org> wrote:
> 
> or else, only if the segment is the maximum size permitted by TXT RDATA formatting, should it be presumed to have been split from a larger string.

Some web searches turn evidence of implementations that
split long text strings into chunks where even the non-final
chunks are shorter than 255 bytes. :-(

See for example:

  http://cr-yp-to.996295.n3.nabble.com/length-of-TXT-records-td15736.html

I originally found a different one, but can't find it again, but
perhaps one counter-example is enough.

-- 
	Viktor.




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