If a container was started with
- a numeric uid
- both a user and group (username:groupname)
- uid and gid (uid:gid)
The copy action failed, because the "username:groupname"
was looked up using getent.
This patch;
- splits `user` and `group` before looking up
- if numeric `uid` or `gid` is used and lookup fails,
the `uid` / `gid` is used as-is
The code also looked up the user and group on the host
instead of in the container when using getent; this patch
fixes the lookup to only use the container's /etc/passwd
and /etc/group instead.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
f658ea3152