Creates a facility/severity map of all of the possible syslog priorities

map_syslog_priorities.rb

facility =  { 0 => 'kern',
              1 => 'user',
              2 => 'mail',
              3 => 'daemon',
              4 => 'auth',
              5 => 'syslog',
              6 => 'lpr',
              7 => 'news',
              8 => 'uucp',
              9 => 'cron',
              10 => 'authpriv',
              11 => 'ftp',
              12 => 'ntp',
              13 => 'audit',
              14 => 'alert',
              15 => 'clock',
              16 => 'local0',
              17 => 'local1',
              18 => 'local2',
              19 => 'local3',
              20 => 'local4',
              21 => 'local5',
              22 => 'local6',
              23 => 'local7' }
severity = { 0 => 'emerg',
             1 => 'alert',
             2 => 'crit',
             3 => 'err',
             4 => 'warning',
             5 => 'notice',
             6 => 'info',
             7 => 'debug' }
priority_levels = (0..191).to_a
results = {}
priority_levels.each do |priority|
  results[priority] = { 'facility' => facility[(priority / 8)], 'severity' => severity[(priority - ((priority / 8) * 8))] }
end