From 635ed82e5cae38b0ba82098c340cbeed70d483c3 Mon Sep 17 00:00:00 2001
From: Ken Barber <ken@bob.sh>
Date: Thu, 28 Jul 2011 18:10:16 +0100
Subject: (#2) - unstubbed is_valid_ip_address

---
 lib/puppet/parser/functions/is_valid_ip_address.rb   | 13 +++++++++++++
 .../parser/functions/is_valid_ip_address_spec.rb     | 20 +++++++++++++++++---
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/lib/puppet/parser/functions/is_valid_ip_address.rb b/lib/puppet/parser/functions/is_valid_ip_address.rb
index e91dda8..4f45890 100644
--- a/lib/puppet/parser/functions/is_valid_ip_address.rb
+++ b/lib/puppet/parser/functions/is_valid_ip_address.rb
@@ -7,11 +7,24 @@ module Puppet::Parser::Functions
     EOS
   ) do |arguments|
 
+    require 'ipaddr'
+
     if (arguments.size != 1) then
       raise(Puppet::ParseError, "is_valid_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
 
diff --git a/spec/unit/parser/functions/is_valid_ip_address_spec.rb b/spec/unit/parser/functions/is_valid_ip_address_spec.rb
index ee53ee1..2883aaa 100644
--- a/spec/unit/parser/functions/is_valid_ip_address_spec.rb
+++ b/spec/unit/parser/functions/is_valid_ip_address_spec.rb
@@ -18,14 +18,28 @@ describe "the is_valid_ip_address function" do
     lambda { @scope.function_is_valid_ip_address([]) }.should( raise_error(Puppet::ParseError))
   end
 
-  it "should return true if an IP address" do
-    result = @scope.function_is_valid_ip_address("1.2.3.4")
+  it "should return true if an IPv4 address" do
+    result = @scope.function_is_valid_ip_address(["1.2.3.4"])
+    result.should(eq(true))
+  end
+
+  it "should return true if a full IPv6 address" do
+    result = @scope.function_is_valid_ip_address(["fe80:0000:cd12:d123:e2f8:47ff:fe09:dd74"])
+    result.should(eq(true))
+  end
+
+  it "should return true if a compressed IPv6 address" do
+    result = @scope.function_is_valid_ip_address(["fe00::1"])
     result.should(eq(true))
   end
 
   it "should return false if not valid" do
-    result = @scope.function_is_valid_ip_address("asdf")
+    result = @scope.function_is_valid_ip_address(["asdf"])
     result.should(eq(false))
   end
 
+  it "should return false if IP octets out of range" do
+    result = @scope.function_is_valid_ip_address(["1.1.1.300"])
+    result.should(eq(false))
+  end
 end
-- 
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