read_stdout can return NULL and thus the return value need to be checked
prior to accessing it.
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 344f8a47db)
In case the limit_ingress or limit_egress options are not present in
gluon's mesh_vpn section the respondd provider compares a string literal
with a NULL pointer, crashing respondd.
Check both pointers prior to comparing them in order to mitigate this
issue.
Suggested-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 7e1e9fe2bd)
