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Diffstat (limited to 'lib/puppet/parser/functions/is_ip_address.rb')
-rw-r--r--lib/puppet/parser/functions/is_ip_address.rb32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/is_ip_address.rb b/lib/puppet/parser/functions/is_ip_address.rb
new file mode 100644
index 0000000..b4a9a15
--- /dev/null
+++ b/lib/puppet/parser/functions/is_ip_address.rb
@@ -0,0 +1,32 @@
+#
+# is_ip_address.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:is_ip_address, :type => :rvalue, :doc => <<-EOS
+Returns true if the string passed to this function is a valid IP address.
+ EOS
+ ) do |arguments|
+
+ require 'ipaddr'
+
+ if (arguments.size != 1) then
+ raise(Puppet::ParseError, "is_ip_address(): Wrong number of arguments "+
+ "given #{arguments.size} for 1")
+ end
+
+ begin
+ ip = IPAddr.new(arguments[0])
+ rescue ArgumentError
+ return false
+ end
+
+ if ip.ipv4? or ip.ipv6? then
+ return true
+ else
+ return false
+ end
+ end
+end
+
+# vim: set ts=2 sw=2 et :