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Re: [http-state] draft-ietf-httpstate-cookie-05 posted

"Yngve N. Pettersen (Developer Opera Software ASA)" <yngve@opera.com> Fri, 12 March 2010 11:08 UTC

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To: Daniel Stenberg <daniel@haxx.se>
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Date: Fri, 12 Mar 2010 12:07:38 +0100
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From: "Yngve N. Pettersen (Developer Opera Software ASA)" <yngve@opera.com>
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Subject: Re: [http-state] draft-ietf-httpstate-cookie-05 posted
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On Fri, 12 Mar 2010 10:47:36 +0100, Daniel Stenberg <daniel@haxx.se> wrote:

> On Fri, 12 Mar 2010, Yngve N. Pettersen (Developer Opera Software ASA)  
> wrote:
>
>>> Did you actually mean 2038 or is there any particular reason why  
>>> there's a margin? See http://en.wikipedia.org/wiki/Year_2038_problem
>>
>> As I recall, at least some years ago, the documentation for several  
>> 32-bit time_t functions I've used clearly specified that the conversion  
>> methods to/from time_t were only valid until a specific date in 2036.
>
> Can you or anyone else find/point to any closer details on this? I would  
> like to see this somewhat explained next to the mention of the magic  
> year 2036 as the 32bit limit does not really end until 2038 so I'm sure  
> a few others than me who will suspect that 2036 might be a typo.

IIRC correctly, the documentation for at least Visual Studio 3 had this  
note. And yes, it could have been a typo.

But using Year 2038 will be fine, too. But I think it should be made clear  
that using 2038 could cause problems since the rollover is in the early  
part of the year, so 2037 should be the last year used.


-- 
Sincerely,
Yngve N. Pettersen

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Opera Software ASA                   http://www.opera.com/
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