[reSIProcate] Content-Length is not taken seriously by SipMessage

[Adam Roach]

Derek MacDonald wrote:
> It isn't ignored for TCP; it is ignored for UDP.  The rational for this is
> people are more likely to get their content length wrong as opposed to stray
> bytes in a UDP packet.
>   

And that works just fine until some bozo notices that the specification 
requires, at a MUST level, implementations to ignore extra cruft in UDP 
packets, and decides it's a safe place to piggyback some proprietary 
information or diagnostics. Yes: bad them, but it takes two to dance 
this particular tango, and you've just volunteered.

/a