Re: 255 character limit in reg-name

• From: Roy T.Fielding <fielding@gbiv.com>
• Date: Thu, 15 Jul 2004 11:58:43 -0700
• To: "Dave McAlpin" <Dave.McAlpin@epok.net>
• Cc: <uri@w3.org>
• Message-Id: <FDDAF275-D690-11D8-8E3F-000393753936@gbiv.com>

On Thursday, July 15, 2004, at 09:51  AM, Dave McAlpin wrote:
> Since a DNS domain name is only one of many possible types of 
> registered names, the 255 character limit on reg-name seems 
> unnecessarily restrictive. Can this limit be dropped?

Do you know of any registered name system that registers names larger
than 255 characters?  The purpose of the limit is to allow 
implementations
to reject (without processing) any URI that seeks to cause a buffer
overflow in the registered name lookup.  Even though the names are not
restricted to DNS, most systems use the DNS interface routines to do
a lookup and those routines are limited to 255 characters, and thus
practical usage of larger names is prevented anyway.

....Roy

Received on Thursday, 15 July 2004 14:58:07 UTC