--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/stdlib/lib/puppet/parser/functions/validate_ip_address.rb	Fri Jan 03 19:56:04 2020 +0000
@@ -0,0 +1,53 @@
+#
+# validate_ip_address.rb
+#
+module Puppet::Parser::Functions
+  newfunction(:validate_ip_address, :doc => <<-DOC
+    Validate that all values passed are valid IP addresses,
+    regardless they are IPv4 or IPv6
+    Fail compilation if any value fails this check.
+    The following values will pass:
+    $my_ip = "1.2.3.4"
+    validate_ip_address($my_ip)
+    validate_ip_address("8.8.8.8", "172.16.0.1", $my_ip)
+
+    $my_ip = "3ffe:505:2"
+    validate_ip_address(1)
+    validate_ip_address($my_ip)
+    validate_ip_address("fe80::baf6:b1ff:fe19:7507", $my_ip)
+
+    The following values will fail, causing compilation to abort:
+    $some_array = [ 1, true, false, "garbage string", "3ffe:505:2" ]
+    validate_ip_address($some_array)
+    DOC
+             ) do |args|
+
+    require 'ipaddr'
+    rescuable_exceptions = [ArgumentError]
+
+    function_deprecation([:validate_ip_address, 'This method is deprecated, please use the stdlib validate_legacy function,
+                            with Stdlib::Compat::Ip_address. There is further documentation for validate_legacy function in the README.'])
+
+    if defined?(IPAddr::InvalidAddressError)
+      rescuable_exceptions << IPAddr::InvalidAddressError
+    end
+
+    if args.empty?
+      raise Puppet::ParseError, "validate_ip_address(): wrong number of arguments (#{args.length}; must be > 0)"
+    end
+
+    args.each do |arg|
+      unless arg.is_a?(String)
+        raise Puppet::ParseError, "#{arg.inspect} is not a string."
+      end
+
+      begin
+        unless IPAddr.new(arg).ipv4? || IPAddr.new(arg).ipv6?
+          raise Puppet::ParseError, "#{arg.inspect} is not a valid IP address."
+        end
+      rescue *rescuable_exceptions
+        raise Puppet::ParseError, "#{arg.inspect} is not a valid IP address."
+      end
+    end
+  end
+end