Re: [Sipp-users] empty route set and [routes] keyword

[Olivier J. <oja...@gm...>]

Hi Ben,

thanks for this. It has been checked-in, SVN 180.
http://sipp.sourceforge.net/snapshots/sipp.2007-03-27.tar.gz

Olivier.

On 3/27/07, Ben Evans <ben...@op...> wrote:
>
> Hi all
>
> I've noticed that when I use the [routes] keyword in a request, but there
> is no route set (ie. the proxy did not record-route), then sipp inserts a
> blank line (CRLF) in the SIP header, when it should insert nothing at all.
>
> For example, if I send this ACK after receiving the 200 OK with no
> Record-Route headers:
>
>   <send>
>     <![CDATA[
>
>       ACK [next_url] SIP/2.0
>       Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
>       From: "[caller]"
> <sip:[caller]@[local_ip]:[local_port]>;tag=[call_number]
>       To: "[callee]"
> <sip:[callee]@[remote_ip]:[remote_port]>[peer_tag_param]
>       Call-ID: [call_id]
>       CSeq: [cseq] ACK
>       [routes]
>       Contact: sip:[caller]@[local_ip]:[local_port]
>       Max-Forwards: 70
>       Content-Length: [len]
>
>     ]]>
>   </send>
>
> ... then the packet that actually gets transmitted looks like this:
>
> ACK sip:192.168.0.19:5070;transport=UDP SIP/2.0
> Via: SIP/2.0/UDP 192.168.0.19:5050;branch=z9hG4bK-1-3-15130
> From: sipp <tel:2080001000>;tag=1
> To: sut <tel:2080001010>;tag=1
> Call-ID: 1-8984@192.168.0.19
> CSeq: 1 ACK
>
> Contact: sip:sipp@192.168.0.19:5050
> Max-Forwards: 70
> Content-Length: 0
>
> The blank line looks like the end of header at the receiver, so the
> message is truncated.
>
> I've attached a patch I made to call.cpp in the sipp.2007-03-14 snapshot.
> If there is no route set then no blank line is inserted. Perhaps this will
> be of use to someone.
>
> Cheers
> Ben
> --
> Ben Evans / Software Engineer / Open Cloud / ben...@op...
> Tel: +6421636182 / PO Box 19210, Wellington, NZ / www.opencloud.com
>
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