[Pdns-users] Exception: unknown escape sequence on NAPTR regex

[Peter Fern]

No one else is serving NAPTR E2U expressions from PowerDNS?

Peter Fern wrote:
> Hello list,
> I am attempting to serve NAPTR records with E2U regular expressions,
> requiring escaping of characters by employing a '\', eg:
>
> 100 0 "u" "E2U+sip" "!^\+([0-9][0-9][0-9])$!sip:\1 at somesiphost.com!" .
>
> I'm running a master/slave setup, with a gmysql backend master, and bind
> backend slaves, both now running 2.9.21.  I was previously running
> 2.9.20, but whilst gmysql was serving results perfectly, the bind
> backends were choking trying to serve NAPTR, returning:
>
> Jul 17 17:25:01 ipbx pdns-slave[31280]: Backend error: Missing content
> for type NAPTR 'xxx.xxx.xxx'
>
> as per ticket #67
> (http://wiki.powerdns.com/cgi-bin/trac.fcgi/ticket/67).  Following the
> advice there, I've updated to 2.9.21 for the MOADNSParser, however now
> the gmysql backend reports:
>
> Jul 17 18:19:35 ipbx pdns-master[780]: Exception: unknown escape sequence
>
> when trying to serve escaped data.  The assumption in ticket #170
> (http://wiki.powerdns.com/cgi-bin/trac.fcgi/ticket/170) is clearly
> wrong, and not exactly the response I would have expected (nor, I
> assume, would the reporter).
>
> Can anyone shed some light on why pdns is attempting to process escape
> sequences when parsing a record?  And more to the point, is there an
> easy way to fix this behaviour.
>
> Regards,
> Peter Fern
>
>
>
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