macaddr.rb in macaddr-1.6.7

- old
+ new

@@ -21,11 +21,11 @@
 end
 
 require 'systemu'
 
 module Mac
-  VERSION = '1.6.6'
+  VERSION = '1.6.7'
 
   def Mac.version
     ::Mac::VERSION
   end
 
@@ -55,17 +55,14 @@
     #   Mac.addr # => first address
     #   Mac.addr.list # => all addresses
 
     def address
       return @mac_address if defined? @mac_address and @mac_address
-      re = %r/[^:\-](?:[0-9A-F][0-9A-F][:\-]){5}[0-9A-F][0-9A-F][^:\-]/io
       cmds = '/sbin/ifconfig', '/bin/ifconfig', 'ifconfig', 'ipconfig /all', 'cat /sys/class/net/*/address'
 
-      null = test(?e, '/dev/null') ? '/dev/null' : 'NUL'
-
       output = nil
       cmds.each do |cmd|
-        status, stdout, stderr = systemu(cmd) rescue next
+        _, stdout, _ = systemu(cmd) rescue next
         next unless stdout and stdout.size > 0
         output = stdout and break
       end
       raise "all of #{ cmds.join ' ' } failed" unless output
 