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From Dean Gaudet <>
Subject Re: PR#4367: spaces in chunk sizes
Date Thu, 27 May 1999 14:46:04 GMT
implied LWS is correct, especially considering you can put a
"chunk-extension" on there... and I'm pretty sure Roy even said so... 
although I can only find a note from Alexei in the archives (back in jan

At any rate, the HTTP standard has actually been fixed, grr -- it used to
require you to start the chunk size with a non-zero digit, so it wasn't
possible to pad with leading zeroes.  In rev-06 I see that they've come to
their senses and now allow leading zeroes... 

So I wouldn't mind switching it to leading zeroes, since I suspect nobody
implements their clients correctly to accept trailing spaces. 


On Wed, 26 May 1999, Rodent of Unusual Size wrote:

> PR#4367 complains that the chunk sizes Apache emits occasionally
> have whitespace appended.  This does, in fact, seem to violate
> section 3.6.1 of draft 06 of HTTP/1.1 -- unless the 'implied *LWS'
> rule at the end of section 2.1 applies.  However, the chunk-size
> isn't defined as a token, which the implied *LWS rule mentions
> explicitly.
> The trailing whitespace appears to be getting added at line
> 502 of src/main/buff.c, and is a correction for a 'short count'
> chunk-size estimate.
> So.. does 'implied *LWS' apply here, or are we in actual violation?
> Roy?
> -- 
> #ken    P-)}
> Ken Coar                    <http://Web.Golux.Com/coar/>
> Apache Software Foundation  <>
> "Apache Server for Dummies" <http://Web.Golux.Com/coar/ASFD/>

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