Hi Mark,

Thank you very much for clearing the confusion and descriptive reply.

Just wanted to know one more thing, will this rfc3501-errata be
sometime reflected at http://www.ietf.org/rfc/rfc3501.txt

Thanks
-Amit



--- Mark Crispin <[EMAIL PROTECTED]> wrote:

> Thank you for asking.
> 
> The implementation in c-client is correct, and your IMAP server is 
> incorrect.  I understand how this happened, and to some extent it
> is my 
> fault.
> 
> However, the problem is that the author of your IMAP server did not
> obey 
> explicit instructions in RFC 3501.  Specifically, he did not
> implement 
> using the formal syntax, but instead relied upon the descriptive
> text. 
> This is a bad idea, since it causes precisely this type of problem.
>  RFC 
> 3501 section 1.1 states that the Formal Syntax is normative and
> text in 
> section 6 and 7 is descriptive.
> 
> The text in section 7.4.2 that says "string list" for the body
> location 
> is, indeed, an error in the descriptive text.  This erro has been
> noted in 
> the RFC 3501 errata on the rfc-editor.org web site for some time. 
> There 
> is also a copy of the errata on the UW site:
>       ftp://ftp.cac.washington.edu/mail/imap.rfcs/rfc3501-errata
> 
> The Formal Syntax for body-fld-loc in RFC 3501 is correct:
> 
>       body-fld-loc    = nstring
> 
> and, as noted above, overrides the incorrect "string list" text in
> the 
> descriptive text in 7.4.2.
> 
> At the rest of saying "I told you so", this is why I resisted
> including 
> that level of detail in the descriptive text.  The IMAP
> specification is a 
> very large and complex document written and maintained by fallible
> human 
> beings; and in spite of best efforts such errors have (and WILL)
> occur. 
> Whenever there is more than one place that seems to document
> something, 
> invariably there will be people who choose the wrong place as the 
> normative document.  Usually this is alright, as the "other place"
> matches 
> the normative statement; but there is always the exception such as
> this.
> 
> In summary: the Formal Syntax in RFC 3501 section 9, and ONLY the
> Formal 
> Syntax in RFC 3501 section 9, is normative for the IMAP protocol. 
> Any 
> text found elsewhere, includes text in RFC 3501 section 6 or 7,
> that 
> conflicts with the Formal Syntax is in error.
> 
> On Tue, 23 Oct 2007, Amit Srivastava wrote:
> 
> > Hello All,
> >
> > I have a query regarding the support of "location" member of the
> BODY
> > structure.
> >
> > In mail.h its datatype is char*
> >
> > BODY
> > {
> > .......
> > char *location;             /* body content URI */
> > ....
> > }
> >
> > But the RFC3501 says its a *stringlist*.
> > <<
> > body location
> >            A *string list* giving the body content URI as defined
> in
> >            [LOCATION].
> >>>
> >
> > Hence the problem is seen when following code is executed in
> > imap4r1.c
> >
> > body->location = imap_parse_string
> > (stream,txtptr,reply,NIL,NIL,LONGT);
> >
> > I am facing this issue against an imap server with RFC3501
> > implementing "content-location" as stringlist.
> > e.g.
> >
> > C: fetch bodystructure
> > S: * 1 FETCH (BODYSTRUCTURE (("TEXT" "PLAIN" ("CHARSET"
> "us-ascii")
> >        <SPACE>NIL NIL "7BIT" 323 14 NIL NIL NIL NIL)("TEXT"
> > "HTML"<SPACE>
> >        ("CHARSET" "iso-8859-1") NIL NIL "QUOTED-PRINTABLE"
> > 50578<SPACE>
> >               1111 NIL NIL NIL
> ("http://home.netscape.com/";))<SPACE>
> >        "MIXED" ("BOUNDARY"
> > "------------8FC7BFAA529B4689FD642892")<SPACE>
> >                  NIL NIL NIL))
> >
> >
> > Note the parentheses in ("http://home.netscape.com/";) above
> response.
> >
> > UW IMAP does not handle '(' and ')' when looking for char*, but
> it
> > does handle this for STRINGLIST datatype.
> > Its impact is very high - not able to see attachment.
> >
> > Am I missing something here or is it a bug in c-client library.
> >
> >
> > Thanks,
> > -Amit
> >
> > __________________________________________________
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> >
> 
> -- Mark --
> 
> http://staff.washington.edu/mrc
> Science does not emerge from voting, party politics, or public
> debate.
> Si vis pacem, para bellum.
> 


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