tree 76ede89343ce331c0eb5d8f08c40e284a7bc0d21
parent dd6496f5911a3d832b6f50f8b7eee7c1840f0b1a
author Christopher Faulet <cfaulet@haproxy.com> 1622627322 +0200
committer Christopher Faulet <cfaulet@haproxy.com> 1622704422 +0200

BUG/MINOR: vars: Be sure to have a session to get checks variables

It is now possible to get any variables from the cli. Concretely, only
variables in the PROC scope can be retrieved because there is neither stream
nor session defined. But, nothing forbids anyone to try to get a variable in
any scope. No value will be found, but it is allowed. Thus, we must be sure
to not rely on an undefined session or stream in that case. Especially, the
session must be tested before retrieving variables in CHECK scope.

This patch should fix the issue #1249. It must be backported to 2.4.

(cherry picked from commit c4439f71b0515c143c5bfc8aa5102b2be7cba7b6)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>