extend management interface command "state"

extend management interface command "state"

Currently the state command shows only the tun/tap IPv4 address. The
IPv4 address of the remote peer is also displayed. In case you connect
via IPv6 it just shows the first 4 bytes of the address in IPv4 notation.

This patch extends the state command, so it handles IPv6 addresses.
In addition it also displays the local address and the both port numbers
of the connection, e.g.

1447250958,CONNECTED,SUCCESS,10.0.0.2,fd00::1,1193,fd00::2,6492,fdff::1002

Signed-off-by: Heiko Hund <heiko.hund@sophos.com>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <1448456220-2042-1-git-send-email-heiko.hund@sophos.com>
URL: http://article.gmane.org/gmane.network.openvpn.devel/10603
Signed-off-by: Gert Doering <gert@greenie.muc.de>