Getting servername inside XP

Hi :
Can anyone tell me if it is possible to get information like : servername/databasename inside an extended stored procedure ?
I checked the "srv_pfield" function but it only returns user/password information.
Thanks,
RuiI'd use:SELECT @.@.servername, Db_Name()-PatP|||Why use an extended stored procedure?

select @.@.SERVERNAME, DB_NAME ()