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-rw-r--r--lib/puppet/parser/functions/enclose_ipv6.rb45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/enclose_ipv6.rb b/lib/puppet/parser/functions/enclose_ipv6.rb
new file mode 100644
index 0000000..80ffc3a
--- /dev/null
+++ b/lib/puppet/parser/functions/enclose_ipv6.rb
@@ -0,0 +1,45 @@
+#
+# enclose_ipv6.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:enclose_ipv6, :type => :rvalue, :doc => <<-EOS
+Takes an array of ip addresses and encloses the ipv6 addresses with square brackets.
+ EOS
+ ) do |arguments|
+
+ require 'ipaddr'
+
+ rescuable_exceptions = [ ArgumentError ]
+ if defined?(IPAddr::InvalidAddressError)
+ rescuable_exceptions << IPAddr::InvalidAddressError
+ end
+
+ if (arguments.size != 1) then
+ raise(Puppet::ParseError, "enclose_ipv6(): Wrong number of arguments "+
+ "given #{arguments.size} for 1")
+ end
+ unless arguments[0].is_a?(String) or arguments[0].is_a?(Array) then
+ raise(Puppet::ParseError, "enclose_ipv6(): Wrong argument type "+
+ "given #{arguments[0].class} expected String or Array")
+ end
+
+ input = [arguments[0]].flatten.compact
+ result = []
+
+ input.each do |val|
+ unless val == '*'
+ begin
+ ip = IPAddr.new(val)
+ rescue *rescuable_exceptions
+ raise(Puppet::ParseError, "enclose_ipv6(): Wrong argument "+
+ "given #{val} is not an ip address.")
+ end
+ val = "[#{ip.to_s}]" if ip.ipv6?
+ end
+ result << val
+ end
+
+ return result.uniq
+ end
+end