Re: [hybi] [Technical Errata Reported] RFC6455 (3912)

Barry Leiba <barryleiba@computer.org> Wed, 05 March 2014 14:48 UTC

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Date: Wed, 5 Mar 2014 06:48:21 -0800
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From: Barry Leiba <barryleiba@computer.org>
To: Bjoern Hoehrmann <derhoermi@gmx.net>
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Cc: "hybi@ietf.org" <hybi@ietf.org>, Pete Resnick <presnick@qti.qualcomm.com>, "ifette+ietf@google.com" <ifette+ietf@google.com>, Gabriel Montenegro <Gabriel.Montenegro@microsoft.com>, mattias.ekendahl@b-reel.com, RFC Errata System <rfc-editor@rfc-editor.org>
Subject: Re: [hybi] [Technical Errata Reported] RFC6455 (3912)
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That sounds like "Reject" to me, then, yes?

Barry

On Wed, Mar 5, 2014 at 6:45 AM, Bjoern Hoehrmann <derhoermi@gmx.net> wrote:
> * RFC Errata System wrote:
>>Original Text
>>-------------
>>    frame-payload-length    = ( %x00-7D )
>>                            / ( %x7E frame-payload-length-16 )
>>                            / ( %x7F frame-payload-length-63 )
>>                            ; 7, 7+16, or 7+64 bits in length,
>>                            ; respectively
>>
>>    frame-payload-length-16 = %x0000-FFFF ; 16 bits in length
>>
>>    frame-payload-length-63 = %x0000000000000000-7FFFFFFFFFFFFFFF
>>                            ; 64 bits in length
>
>>Name of field and range is implying that it should be 63 bits in length,
>>but documentation is saying 64 bits in 2 places.
>
> The intended interpretation is that lexically the field is 64 bit long
> but the value space is constrained to 63 bit (so the length can be re-
> presented in a 64 signed integer, i.e. one bit is always zero). It is a
> bit unconventional to use ABNF like this, but it is explained in §5.2.
> --
> Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
> Am Badedeich 7 · Telefon: +49(0)160/4415681 · http://www.bjoernsworld.de
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