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-rw-r--r--code/environments/production/modules/stdlib/lib/puppet/parser/functions/is_mac_address.rb21
1 files changed, 21 insertions, 0 deletions
diff --git a/code/environments/production/modules/stdlib/lib/puppet/parser/functions/is_mac_address.rb b/code/environments/production/modules/stdlib/lib/puppet/parser/functions/is_mac_address.rb
new file mode 100644
index 0000000..83a5ba2
--- /dev/null
+++ b/code/environments/production/modules/stdlib/lib/puppet/parser/functions/is_mac_address.rb
@@ -0,0 +1,21 @@
+#
+# is_mac_address.rb
+#
+module Puppet::Parser::Functions
+ newfunction(:is_mac_address, :type => :rvalue, :doc => <<-DOC
+ Returns true if the string passed to this function is a valid mac address.
+ DOC
+ ) do |arguments|
+
+ if arguments.size != 1
+ raise(Puppet::ParseError, "is_mac_address(): Wrong number of arguments given #{arguments.size} for 1")
+ end
+
+ mac = arguments[0]
+
+ return true if %r{^[a-f0-9]{1,2}(:[a-f0-9]{1,2}){5}$}i =~ mac
+ return false
+ end
+end
+
+# vim: set ts=2 sw=2 et :