lib/macaddr.rb in macaddr-1.7.1 vs lib/macaddr.rb in macaddr-1.7.2

@@ -22,19 +22,19 @@
 
 require 'systemu'
 require 'socket'
 
 module Mac
-  VERSION = '1.7.1'
+  VERSION = '1.7.2'
 
   def Mac.version
     ::Mac::VERSION
   end
 
   def Mac.dependencies
     {
-      'systemu' => [ 'systemu' , '~> 2.6.2' ]
+      'systemu' => [ 'systemu' , '~> 2.6.5' ]
     }
   end
 
   def Mac.description
     'cross platform mac address determination for ruby'
@@ -81,10 +81,12 @@
 
     def from_getifaddrs
       return unless Socket.respond_to? :getifaddrs
 
       interfaces = Socket.getifaddrs.select do |addr|
-        addr.addr.pfamily == INTERFACE_PACKET_FAMILY
+        if addr.addr  # Some VPN ifcs don't have an addr - ignore them
+          addr.addr.pfamily == INTERFACE_PACKET_FAMILY
+        end
       end
 
       mac, =
         if Socket.const_defined? :PF_LINK then
           interfaces.map do |addr|