We cannot assume that the mount source name always starts with 'cgroup'
so we check the filesystem type instead.
Use 'awk' instead of 'grep -E' and as it is a better tool for this job.
This fixes the tool on systems using openrc.
Signed-off-by: Natanael Copa <nc...@alpinelinux.org>
---
src/lxc/lxc-netstat.in | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/lxc/lxc-netstat.in b/src/lxc/lxc-netstat.in
index 87bd3eb..6d08ce3 100644
--- a/src/lxc/lxc-netstat.in
+++ b/src/lxc/lxc-netstat.in
@@ -51,7 +51,8 @@ get_parent_cgroup()
init_cgroup=${fields#*:}
# Get the filesystem mountpoint of the hierarchy
- mountpoint=$(grep -E "^cgroup [^ ]+ [^ ]+ ([^ ]+,)?$subsystems(,[^
]+)? " /proc/self/mounts | cut -d ' ' -f 2)
+ mountpoint=$(awk -v subsysregex="(^|,)$subsystems(,|\$)" \
+ '$3 == "cgroup" && $4 ~ subsysregex {print $2}' /proc/self/mounts)
if [ -z "$mountpoint" ]; then continue; fi
# Return the absolute path to the containers' parent cgroup
--
1.8.0.2
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