Linelog fails when attribute does not exist

Alan DeKok aland at
Mon Jul 29 20:28:28 CEST 2019

On Jul 29, 2019, at 2:17 PM, R3DNano <r3dnano at> wrote:
> I'm tryin to implement linelog so I can send information to a remote syslog
> server.
> It seems to work perfectly unless I try to send an attribute that is not
> defined or used at the time.
> For this reason, the linelog module fails to send any data.
> Is there any way to make it default to something else like an empty value
> so it does not crash instead?

  It shouldn't *crash*.  It should just fail.

  See "man unlang".  You can use optional expansions:


  Will expand to %{User-Name} if it exists, otherwise to "?"

  Alan DeKok.

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