Re: [DNSOP] Clarification question: compression pointers always to names earlier in the packet?
Tony Finch <dot@dotat.at> Wed, 24 October 2018 15:46 UTC
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Date: Wed, 24 Oct 2018 16:46:37 +0100
From: Tony Finch <dot@dotat.at>
To: Ray Bellis <ray@bellis.me.uk>
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Subject: Re: [DNSOP] Clarification question: compression pointers always to names earlier in the packet?
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Ray Bellis <ray@bellis.me.uk> wrote: > On 24/10/2018 11:45, Tony Finch wrote: > > > > * Keep a high-water-mark separate from the current location, and require > > pointers to be strictly less than the HWM. (I prefer this way.) > > Right, but to be safe the HWM should be initialised with the position of > the _start_ of the label sequence that's being parsed. > > Any time you follow a pointer you reset the HWM to the target of that > pointer (which per the rule above must be lower than the current value). Exactly, yes :-) Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ Southeast Iceland: Westerly 7 to severe gale 9, veering northerly 4 or 5, occasionally 6 later. Very rough or high. Showers, perhaps wintry later. Moderate or poor.
- [DNSOP] Clarification question: compression point… Viktor Dukhovni
- Re: [DNSOP] Clarification question: compression p… bert hubert
- Re: [DNSOP] Clarification question: compression p… Shane Kerr
- Re: [DNSOP] Clarification question: compression p… Joe Abley
- Re: [DNSOP] Clarification question: compression p… Martin Hoffmann
- Re: [DNSOP] Clarification question: compression p… Tony Finch
- Re: [DNSOP] Clarification question: compression p… Martin Hoffmann
- Re: [DNSOP] Clarification question: compression p… John Dickinson
- Re: [DNSOP] Clarification question: compression p… Ray Bellis
- Re: [DNSOP] Clarification question: compression p… Tony Finch
- Re: [DNSOP] Clarification question: compression p… Viktor Dukhovni
- Re: [DNSOP] Clarification question: compression p… Tony Finch
- Re: [DNSOP] Clarification question: compression p… Ted Lemon
- Re: [DNSOP] Clarification question: compression p… Mark Andrews
- Re: [DNSOP] Clarification question: compression p… Shane Kerr
- Re: [DNSOP] Clarification question: compression p… Ted Lemon
- Re: [DNSOP] Clarification question: compression p… Mukund Sivaraman
- Re: [DNSOP] Clarification question: compression p… George Michaelson