2008/11/21 Stefano Sabatini <[EMAIL PROTECTED]>:
> On the other hand sofia sip seems to get confused when parsing the
> TO_TAG, and it consider the uri params like header params.
>
> Making this clear with an example:
...
> SIPTAG_TO_STR("sip:[EMAIL PROTECTED];foo=bar"),
...
> will issue the following INVITE message:
...
> To: <sip:[EMAIL PROTECTED]>;foo=bar
> foo=bar is consiedered as an *header* param, while it was specified as
> an *uri* param.
> In order to get the correct behaviour (uri params in the request line)
> I have to specify the sip uri in the To tag like this:
> SIPTAG_TO_STR("<sip:[EMAIL PROTECTED];foo=bar>"), in which case I got:
...
> To: <sip:[EMAIL PROTECTED];foo=bar>
....
> I think this is a bug in sofia-sip.
This is a well-known problem in RFC 3261. Quoting section 20.10 "Contact":
When the header field value contains a display name, the URI
including all URI parameters is enclosed in "<" and ">". If no "<"
and ">" are present, all parameters after the URI are header
parameters, not URI parameters. The display name can be tokens, or a
quoted string, if a larger character set is desired.
Even if the "display-name" is empty, the "name-addr" form MUST be
used if the "addr-spec" contains a comma, semicolon, or question
mark. There may or may not be LWS between the display-name and the
"<".
These rules for parsing a display name, URI and URI parameters, and
header parameters also apply for the header fields To and From.
--
Pekka.Pessi mail at nokia.com
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