X-Git-Url: https://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2FIPv4Address.hs;h=ca6f3d331c243948e4e0567a5f57900fa76b2396;hb=4520812e6f264cdeba984d180f20a8f8c6b6d645;hp=55602aa8a9616197d6ecf038e6b071eec87e79d3;hpb=c5ea6135a25e8c9e108c34ebb0d0cbb4b4af1e6d;p=hath.git

diff --git a/src/IPv4Address.hs b/src/IPv4Address.hs
index 55602aa..ca6f3d3 100644
--- a/src/IPv4Address.hs
+++ b/src/IPv4Address.hs
@@ -21,6 +21,7 @@ import Test.HUnit
 import Test.QuickCheck
 
 import qualified Bit as B
+import Maskable
 import Maskbits
 import Octet
 
@@ -56,6 +57,50 @@ instance Arbitrary IPv4Address where
 
 
 
+instance Maskable IPv4Address where
+    apply_mask _ Maskbits.None = IPv4Address.None
+    apply_mask addr mask
+        | mask == ThirtyTwo = ipv4address_from_octets oct1 oct2 oct3 oct4
+        | mask == ThirtyOne = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Seven)
+        | mask == Thirty = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Six)
+        | mask == TwentyNine = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Five)
+        | mask == TwentyEight = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Four)
+        | mask == TwentySeven = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Three)
+        | mask == TwentySix = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 Two)
+        | mask == TwentyFive = ipv4address_from_octets oct1 oct2 oct3 (apply_mask oct4 One)
+        | mask == TwentyFour = ipv4address_from_octets oct1 oct2 oct3 (min_octet)
+        | mask == TwentyThree = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Seven) (min_octet)
+        | mask == TwentyTwo = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Six) (min_octet)
+        | mask == TwentyOne = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Five) (min_octet)
+        | mask == Twenty = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Four) (min_octet)
+        | mask == Nineteen = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Three) (min_octet)
+        | mask == Eighteen = ipv4address_from_octets oct1 oct2 (apply_mask oct3 Two) (min_octet)
+        | mask == Seventeen = ipv4address_from_octets oct1 oct2 (apply_mask oct3 One) (min_octet)
+        | mask == Sixteen = ipv4address_from_octets oct1 oct2 (min_octet) (min_octet)
+        | mask == Fifteen = ipv4address_from_octets oct1 (apply_mask oct2 Seven) (min_octet) (min_octet)
+        | mask == Fourteen = ipv4address_from_octets oct1 (apply_mask oct2 Six) (min_octet) (min_octet)
+        | mask == Thirteen = ipv4address_from_octets oct1 (apply_mask oct2 Five) (min_octet) (min_octet)
+        | mask == Twelve = ipv4address_from_octets oct1 (apply_mask oct2 Four) (min_octet) (min_octet)
+        | mask == Eleven = ipv4address_from_octets oct1 (apply_mask oct2 Three) (min_octet) (min_octet)
+        | mask == Ten = ipv4address_from_octets oct1 (apply_mask oct2 Two) (min_octet) (min_octet)
+        | mask == Nine = ipv4address_from_octets oct1 (apply_mask oct2 One) (min_octet) (min_octet)
+        | mask == Eight = ipv4address_from_octets oct1 (min_octet) (min_octet) (min_octet)
+        | mask == Seven = ipv4address_from_octets (apply_mask oct1 Seven) (min_octet) (min_octet) (min_octet)
+        | mask == Six = ipv4address_from_octets (apply_mask oct1 Six) (min_octet) (min_octet) (min_octet)
+        | mask == Five = ipv4address_from_octets (apply_mask oct1 Five) (min_octet) (min_octet) (min_octet)
+        | mask == Four =  ipv4address_from_octets (apply_mask oct1 Four) (min_octet) (min_octet) (min_octet)
+        | mask == Three = ipv4address_from_octets (apply_mask oct1 Three) (min_octet) (min_octet) (min_octet)
+        | mask == Two = ipv4address_from_octets (apply_mask oct1 Two) (min_octet) (min_octet) (min_octet)
+        | mask == One = ipv4address_from_octets (apply_mask oct1 One) (min_octet) (min_octet) (min_octet)
+        | mask == Zero = ipv4address_from_octets (min_octet) (min_octet) (min_octet) (min_octet)
+        | otherwise = IPv4Address.None
+        where
+          oct1 = (octet1 addr)
+          oct2 = (octet2 addr)
+          oct3 = (octet3 addr)
+          oct4 = (octet4 addr)
+
+
 -- We don't export our constructor so this function is the only
 -- way to construct an address from octets. As a result, we can
 -- return IPv4Address.None in response to being passed one of more