[Devel] lumps

[Bogdan-Andrei Iancu]

Hi Marco,

please refer to this thread:
    http://www.openser.org/pipermail/users/2006-August/006260.html
it has the same topic

regards,
bogdan

Marco Holmer wrote:

> Hi developers,
>
> I was trying to find about rewriting (or inserting if necessary) of 
> the Contact header's URI parameter "transport". As I could not find 
> anything about it I implemented a function myself, but I am having 
> trouble with the data lump system.
> The function works fine so far, but if some changed the URI 
> beforehand, eg. with fix_nated_contact, the URI parsing results in a 
> sip_uri struct with its pointer (such as host, port, ...) pointing 
> into the lump so inserting a new lump fails as the anchor postiion 
> lies somewhere outside the original message.
>
> Is there a general way to cope with this - e.g. traversing all lumps 
> and changing the buffers manually, which sort of undermines the whole 
> purpose of having parsing functionality?
>
> Only thing I could find is a check on the position of the parsed URI 
> pointers in fix_nated_contact, which disallows any additional call to 
> the function (the easy way).
> But I want to allow the fix_nated_contact function + changing the 
> transport param.
> Maybe I have overseen something obvious?
>
> Thanks in advance,
> Marco Holmer
>
>
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