Equipments which are liberal in what they receive and strict in what they send should not have problem with this change.
Sanjay >-----Original Message----- >From: Cullen Jennings (fluffy) >Sent: Thursday, November 29, 2007 10:38 PM >To: sip List >Subject: Re: [Sip] SIPit 21: BNF and DIGEST authentication > > >I'm worried that any change would break the things that >currently work. Any idea of how existing equipment would react? > >(yah, yah, with my individual contribute hat on - I hate >typing this more than you hate reading it) > >On Nov 19, 2007, at 1:40 PM, Robert Sparks wrote: > >> We are _still_ seeing interoperability problems because of quotes >> around the qop parameter value in challenges and responses. >> >> What's specified now is that quotes MUST appear in >challenges (it's a >> list of things) and MUST NOT appear in responses (it's a >choice of one >> thing). >> >> This causes lots of people to write broken code. >> >> For the code that does work, this causes people to either build >> separate parsers for headers with the same name, using the knowledge >> of whether its a challenge or response to invoke the right >parser, or >> to build parsers that don't follow the BNF we've provided. >> >> Would it make more sense to change the BNF to allow the quotes >> optionally in either the challenge or the response? >> >> Nobody that I've asked is actually re-using an HTTP parser for this, >> and nobody seems to be getting the number of values for the >parameter >> wrong. Most of the folks I ask are building their parsers this way >> anyhow >> >> What would be bad about making this change to the spec? >> >> RjS >> >> >> >> _______________________________________________ >> Sip mailing list https://www1.ietf.org/mailman/listinfo/sip >> This list is for NEW development of the core SIP Protocol Use >> [EMAIL PROTECTED] for questions on current sip Use >> [EMAIL PROTECTED] for new developments on the application of sip > > >_______________________________________________ >Sip mailing list https://www1.ietf.org/mailman/listinfo/sip >This list is for NEW development of the core SIP Protocol Use >[EMAIL PROTECTED] for questions on current sip >Use [EMAIL PROTECTED] for new developments on the application of sip > _______________________________________________ Sip mailing list https://www1.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
