[sr-dev] Patch: Fix SRV lookups when dns failover is enabled

Øyvind Kolbu oyvind.kolbu at usit.uio.no
Wed Oct 16 14:42:36 CEST 2013


On 08.10.2013 03:15, Øyvind Kolbu wrote:
> Ref the thread from september,
> <http://lists.sip-router.org/pipermail/sr-users/2013-September/079760.html>
>
> I've fixed SRV lookups to work when use_dns_failover is on and the
> domain has no _sip._udp record. An example is cisco.com:
>
> % host -t SRV _sip._udp.cisco.com
> Host _sip._udp.cisco.com not found: 3(NXDOMAIN)
> % host -t SRV _sip._tcp.cisco.com
> _sip._tcp.cisco.com has SRV record 1 0 5060 vcsgw.cisco.com.
> % host -t SRV _sips._tcp.cisco.com
> _sips._tcp.cisco.com has SRV record 1 0 5061 vcsgw.cisco.com.
>
> Currently attempting to call an uri at cisco.com will fail, unless
> manually forcing the protocol.
>
> While fixing the the issue I refactored a lot of code and fixed a plenty of
> comments as the lookup code has clearly been copy pasted more than once.
>
> Patch is attached and should probably be reviewed thoroughly as it touches
> pretty core usage.

Any feedback?

-- 
Øyvind




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