- config_get server "$vif" server
- append "$var" "auth_server_addr=$server" "$N"
- config_get port "$vif" port
- port=${port:-1812}
- append "$var" "auth_server_port=$port" "$N"
- config_get secret "$vif" key
- append "$var" "auth_server_shared_secret=$secret" "$N"
+ config_get auth_server "$vif" auth_server
+ [ -z "$auth_server" ] && config_get auth_server "$vif" server
+ append "$var" "auth_server_addr=$auth_server" "$N"
+ config_get auth_port "$vif" auth_port
+ [ -z "$auth_port" ] && config_get auth_port "$vif" port
+ auth_port=${auth_port:-1812}
+ append "$var" "auth_server_port=$auth_port" "$N"
+ config_get auth_secret "$vif" auth_secret
+ [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
+ append "$var" "auth_server_shared_secret=$auth_secret" "$N"
+ config_get acct_server "$vif" acct_server
+ [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
+ config_get acct_port "$vif" acct_port
+ [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
+ [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
+ config_get acct_secret "$vif" acct_secret
+ [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"