From: Takuro Ashie <ashie@clear-code.com>
Date: Tue, 18 Jun 2019 06:54:51 +0000 (+0900)
Subject: regex match: Fix unexpected match with empty meta data
X-Git-Url: https://git.octo.it/?p=collectd.git;a=commitdiff_plain;h=04ddb9fa96ed0bdfdfe0b24e78516d03c7def86c;hp=04ddb9fa96ed0bdfdfe0b24e78516d03c7def86c

regex match: Fix unexpected match with empty meta data

If a user set

  MetaData "foo" "bar"

and a metric does not have meta data (vl->meta == NULL), it causes
unexpected match.

Existance of MetaData config should be checked before meta data in
a metric.

See also: #1930

Signed-off-by: Takuro Ashie <ashie@clear-code.com>
(cherry picked from commit d4f53887527777296b0982af60f4c0fecdb2f0d9)
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