X-Git-Url: http://gitweb.michael.orlitzky.com/?a=blobdiff_plain;f=src%2FIPv4Address.hs;h=c79472c1658d5cbe9fdd162d64b26f684b75ba47;hb=c725515c82d7475a2423042349a9cd4a47471974;hp=7c5d80deb6d00fd60a324fa82a916aaff233317f;hpb=0913645a2ad512b0f32338a48c2bc71793be23a8;p=hath.git diff --git a/src/IPv4Address.hs b/src/IPv4Address.hs index 7c5d80d..c79472c 100644 --- a/src/IPv4Address.hs +++ b/src/IPv4Address.hs @@ -1,7 +1,7 @@ module IPv4Address ( ipv4address_from_octets, + ipv4address_tests, IPv4Address(None), - Maskbits, max_octet1, max_octet2, max_octet3, @@ -9,20 +9,38 @@ module IPv4Address min_octet1, min_octet2, min_octet3, - min_octet4 -) - where + min_octet4, + most_sig_bit_different, + octet1, + octet2, + octet3, + octet4 +) where -import Bit -import Octet +import Test.HUnit -type Maskbits = Int +import qualified Bit as B +import Maskbits +import Octet data IPv4Address = None | IPv4Address { octet1 :: Octet, octet2 :: Octet, octet3 :: Octet, octet4 :: Octet } - deriving (Eq, Show) + deriving (Eq) + + +instance Show IPv4Address where + show IPv4Address.None = "None" + show addr = concat [(show oct1) ++ ".", + (show oct2) ++ ".", + (show oct3) ++ ".", + (show oct4)] + 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 @@ -39,40 +57,42 @@ ipv4address_from_octets oct1 oct2 oct3 oct4 min_address :: IPv4Address -> Maskbits -> IPv4Address +min_address IPv4Address.None _ = IPv4Address.None +min_address _ Maskbits.None = IPv4Address.None min_address addr mask - | mask == 32 = IPv4Address oct1 oct2 oct3 oct4 - | mask == 31 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 Zero) - | mask == 30 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 Zero Zero) - | mask == 29 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 Zero Zero Zero) - | mask == 28 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 Zero Zero Zero Zero) - | mask == 27 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 Zero Zero Zero Zero Zero) - | mask == 26 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 Zero Zero Zero Zero Zero Zero) - | mask == 25 = IPv4Address oct1 oct2 oct3 (Octet a25 Zero Zero Zero Zero Zero Zero Zero) - | mask == 24 = IPv4Address oct1 oct2 oct3 (min_octet) - | mask == 23 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 Zero) (min_octet) - | mask == 22 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 Zero Zero) (min_octet) - | mask == 21 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 Zero Zero Zero) (min_octet) - | mask == 20 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 Zero Zero Zero Zero) (min_octet) - | mask == 19 = IPv4Address oct1 oct2 (Octet a17 a18 a19 Zero Zero Zero Zero Zero) (min_octet) - | mask == 18 = IPv4Address oct1 oct2 (Octet a17 a18 Zero Zero Zero Zero Zero Zero) (min_octet) - | mask == 17 = IPv4Address oct1 oct2 (Octet a17 Zero Zero Zero Zero Zero Zero Zero) (min_octet) - | mask == 16 = IPv4Address oct1 oct2 (min_octet) (min_octet) - | mask == 15 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 Zero) (min_octet) (min_octet) - | mask == 14 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 Zero Zero) (min_octet) (min_octet) - | mask == 13 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 Zero Zero Zero) (min_octet) (min_octet) - | mask == 12 = IPv4Address oct1 (Octet a9 a10 a11 a12 Zero Zero Zero Zero) (min_octet) (min_octet) - | mask == 11 = IPv4Address oct1 (Octet a9 a10 a11 Zero Zero Zero Zero Zero) (min_octet) (min_octet) - | mask == 10 = IPv4Address oct1 (Octet a9 a10 Zero Zero Zero Zero Zero Zero) (min_octet) (min_octet) - | mask == 9 = IPv4Address oct1 (Octet a9 Zero Zero Zero Zero Zero Zero Zero) (min_octet) (min_octet) - | mask == 8 = IPv4Address oct1 (min_octet) (min_octet) (min_octet) - | mask == 7 = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 Zero) (min_octet) (min_octet) (min_octet) - | mask == 6 = IPv4Address (Octet a1 a2 a3 a4 a5 a6 Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 5 = IPv4Address (Octet a1 a2 a3 a4 a5 Zero Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 4 = IPv4Address (Octet a1 a2 a3 a4 Zero Zero Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 3 = IPv4Address (Octet a1 a2 a3 Zero Zero Zero Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 2 = IPv4Address (Octet a1 a2 Zero Zero Zero Zero Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 1 = IPv4Address (Octet a1 Zero Zero Zero Zero Zero Zero Zero) (min_octet) (min_octet) (min_octet) - | mask == 0 = IPv4Address (min_octet) (min_octet) (min_octet) (min_octet) + | mask == ThirtyTwo = IPv4Address oct1 oct2 oct3 oct4 + | mask == ThirtyOne = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 B.Zero) + | mask == Thirty = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 B.Zero B.Zero) + | mask == TwentyNine = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 B.Zero B.Zero B.Zero) + | mask == TwentyEight = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 B.Zero B.Zero B.Zero B.Zero) + | mask == TwentySeven = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 B.Zero B.Zero B.Zero B.Zero B.Zero) + | mask == TwentySix = IPv4Address oct1 oct2 oct3 (Octet a25 a26 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) + | mask == TwentyFive = IPv4Address oct1 oct2 oct3 (Octet a25 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) + | mask == TwentyFour = IPv4Address oct1 oct2 oct3 (min_octet) + | mask == TwentyThree = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 B.Zero) (min_octet) + | mask == TwentyTwo = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 B.Zero B.Zero) (min_octet) + | mask == TwentyOne = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 B.Zero B.Zero B.Zero) (min_octet) + | mask == Twenty = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 B.Zero B.Zero B.Zero B.Zero) (min_octet) + | mask == Nineteen = IPv4Address oct1 oct2 (Octet a17 a18 a19 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) + | mask == Eighteen = IPv4Address oct1 oct2 (Octet a17 a18 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) + | mask == Seventeen = IPv4Address oct1 oct2 (Octet a17 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) + | mask == Sixteen = IPv4Address oct1 oct2 (min_octet) (min_octet) + | mask == Fifteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 B.Zero) (min_octet) (min_octet) + | mask == Fourteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 B.Zero B.Zero) (min_octet) (min_octet) + | mask == Thirteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 B.Zero B.Zero B.Zero) (min_octet) (min_octet) + | mask == Twelve = IPv4Address oct1 (Octet a9 a10 a11 a12 B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) + | mask == Eleven = IPv4Address oct1 (Octet a9 a10 a11 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) + | mask == Ten = IPv4Address oct1 (Octet a9 a10 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) + | mask == Nine = IPv4Address oct1 (Octet a9 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) + | mask == Eight = IPv4Address oct1 (min_octet) (min_octet) (min_octet) + | mask == Seven = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Six = IPv4Address (Octet a1 a2 a3 a4 a5 a6 B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Five = IPv4Address (Octet a1 a2 a3 a4 a5 B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Four = IPv4Address (Octet a1 a2 a3 a4 B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Three = IPv4Address (Octet a1 a2 a3 B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Two = IPv4Address (Octet a1 a2 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == One = IPv4Address (Octet a1 B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero B.Zero) (min_octet) (min_octet) (min_octet) + | mask == Zero = IPv4Address (min_octet) (min_octet) (min_octet) (min_octet) | otherwise = addr where a1 = (b1 oct1) @@ -111,40 +131,42 @@ min_address addr mask max_address :: IPv4Address -> Maskbits -> IPv4Address +max_address IPv4Address.None _ = IPv4Address.None +max_address _ Maskbits.None = IPv4Address.None max_address addr mask - | mask == 32 = IPv4Address oct1 oct2 oct3 oct4 - | mask == 31 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 One) - | mask == 30 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 One One) - | mask == 29 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 One One One) - | mask == 28 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 One One One One) - | mask == 27 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 One One One One One) - | mask == 26 = IPv4Address oct1 oct2 oct3 (Octet a25 a26 One One One One One One) - | mask == 25 = IPv4Address oct1 oct2 oct3 (Octet a25 One One One One One One One) - | mask == 24 = IPv4Address oct1 oct2 oct3 (max_octet) - | mask == 23 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 One) (max_octet) - | mask == 22 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 One One) (max_octet) - | mask == 21 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 One One One) (max_octet) - | mask == 20 = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 One One One One) (max_octet) - | mask == 19 = IPv4Address oct1 oct2 (Octet a17 a18 a19 One One One One One) (max_octet) - | mask == 18 = IPv4Address oct1 oct2 (Octet a17 a18 One One One One One One) (max_octet) - | mask == 17 = IPv4Address oct1 oct2 (Octet a17 One One One One One One One) (max_octet) - | mask == 16 = IPv4Address oct1 oct2 (max_octet) (max_octet) - | mask == 15 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 One) (max_octet) (max_octet) - | mask == 14 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 One One) (max_octet) (max_octet) - | mask == 13 = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 One One One) (max_octet) (max_octet) - | mask == 12 = IPv4Address oct1 (Octet a9 a10 a11 a12 One One One One) (max_octet) (max_octet) - | mask == 11 = IPv4Address oct1 (Octet a9 a10 a11 One One One One One) (max_octet) (max_octet) - | mask == 10 = IPv4Address oct1 (Octet a9 a10 One One One One One One) (max_octet) (max_octet) - | mask == 9 = IPv4Address oct1 (Octet a9 One One One One One One One) (max_octet) (max_octet) - | mask == 8 = IPv4Address oct1 (max_octet) (max_octet) (max_octet) - | mask == 7 = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 One) (max_octet) (max_octet) (max_octet) - | mask == 6 = IPv4Address (Octet a1 a2 a3 a4 a5 a6 One One) (max_octet) (max_octet) (max_octet) - | mask == 5 = IPv4Address (Octet a1 a2 a3 a4 a5 One One One) (max_octet) (max_octet) (max_octet) - | mask == 4 = IPv4Address (Octet a1 a2 a3 a4 One One One One) (max_octet) (max_octet) (max_octet) - | mask == 3 = IPv4Address (Octet a1 a2 a3 One One One One One) (max_octet) (max_octet) (max_octet) - | mask == 2 = IPv4Address (Octet a1 a2 One One One One One One) (max_octet) (max_octet) (max_octet) - | mask == 1 = IPv4Address (Octet a1 One One One One One One One) (max_octet) (max_octet) (max_octet) - | mask == 0 = IPv4Address (max_octet) (max_octet) (max_octet) (max_octet) + | mask == ThirtyTwo = IPv4Address oct1 oct2 oct3 oct4 + | mask == ThirtyOne = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 a31 B.One) + | mask == Thirty = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 a30 B.One B.One) + | mask == TwentyNine = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 a29 B.One B.One B.One) + | mask == TwentyEight = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 a28 B.One B.One B.One B.One) + | mask == TwentySeven = IPv4Address oct1 oct2 oct3 (Octet a25 a26 a27 B.One B.One B.One B.One B.One) + | mask == TwentySix = IPv4Address oct1 oct2 oct3 (Octet a25 a26 B.One B.One B.One B.One B.One B.One) + | mask == TwentyFive = IPv4Address oct1 oct2 oct3 (Octet a25 B.One B.One B.One B.One B.One B.One B.One) + | mask == TwentyFour = IPv4Address oct1 oct2 oct3 (max_octet) + | mask == TwentyThree = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 a23 B.One) (max_octet) + | mask == TwentyTwo = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 a22 B.One B.One) (max_octet) + | mask == TwentyOne = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 a21 B.One B.One B.One) (max_octet) + | mask == Twenty = IPv4Address oct1 oct2 (Octet a17 a18 a19 a20 B.One B.One B.One B.One) (max_octet) + | mask == Nineteen = IPv4Address oct1 oct2 (Octet a17 a18 a19 B.One B.One B.One B.One B.One) (max_octet) + | mask == Eighteen = IPv4Address oct1 oct2 (Octet a17 a18 B.One B.One B.One B.One B.One B.One) (max_octet) + | mask == Seventeen = IPv4Address oct1 oct2 (Octet a17 B.One B.One B.One B.One B.One B.One B.One) (max_octet) + | mask == Sixteen = IPv4Address oct1 oct2 (max_octet) (max_octet) + | mask == Fifteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 a15 B.One) (max_octet) (max_octet) + | mask == Fourteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 a14 B.One B.One) (max_octet) (max_octet) + | mask == Thirteen = IPv4Address oct1 (Octet a9 a10 a11 a12 a13 B.One B.One B.One) (max_octet) (max_octet) + | mask == Twelve = IPv4Address oct1 (Octet a9 a10 a11 a12 B.One B.One B.One B.One) (max_octet) (max_octet) + | mask == Eleven = IPv4Address oct1 (Octet a9 a10 a11 B.One B.One B.One B.One B.One) (max_octet) (max_octet) + | mask == Ten = IPv4Address oct1 (Octet a9 a10 B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) + | mask == Nine = IPv4Address oct1 (Octet a9 B.One B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) + | mask == Eight = IPv4Address oct1 (max_octet) (max_octet) (max_octet) + | mask == Seven = IPv4Address (Octet a1 a2 a3 a4 a5 a6 a7 B.One) (max_octet) (max_octet) (max_octet) + | mask == Six = IPv4Address (Octet a1 a2 a3 a4 a5 a6 B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == Five = IPv4Address (Octet a1 a2 a3 a4 a5 B.One B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == Four = IPv4Address (Octet a1 a2 a3 a4 B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == Three = IPv4Address (Octet a1 a2 a3 B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == Two = IPv4Address (Octet a1 a2 B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == One = IPv4Address (Octet a1 B.One B.One B.One B.One B.One B.One B.One) (max_octet) (max_octet) (max_octet) + | mask == Zero = IPv4Address (max_octet) (max_octet) (max_octet) (max_octet) | otherwise = addr where a1 = (b1 oct1) @@ -205,3 +227,142 @@ max_octet3 addr mask = octet3 (max_address addr mask) max_octet4 :: IPv4Address -> Maskbits -> Octet max_octet4 addr mask = octet4 (max_address addr mask) + + +-- Given two addresses, find the number of the most significant bit +-- where they differ. If the addresses are the same, return +-- Maskbits.Zero. +most_sig_bit_different :: IPv4Address -> IPv4Address -> Maskbits +most_sig_bit_different addr1 addr2 + | addr1 == addr2 = Maskbits.Zero + | m1 /= n1 = Maskbits.One + | m2 /= n2 = Two + | m3 /= n3 = Three + | m4 /= n4 = Four + | m5 /= n5 = Five + | m6 /= n6 = Six + | m7 /= n7 = Seven + | m8 /= n8 = Eight + | m9 /= n9 = Nine + | m10 /= n10 = Ten + | m11 /= n11 = Eleven + | m12 /= n12 = Twelve + | m13 /= n13 = Thirteen + | m14 /= n14 = Fourteen + | m15 /= n15 = Fifteen + | m16 /= n16 = Sixteen + | m17 /= n17 = Seventeen + | m18 /= n18 = Eighteen + | m19 /= n19 = Nineteen + | m20 /= n20 = Twenty + | m21 /= n21 = TwentyOne + | m22 /= n22 = TwentyTwo + | m23 /= n23 = TwentyThree + | m24 /= n24 = TwentyFour + | m25 /= n25 = TwentyFive + | m26 /= n26 = TwentySix + | m27 /= n27 = TwentySeven + | m28 /= n28 = TwentyEight + | m29 /= n29 = TwentyNine + | m30 /= n30 = Thirty + | m31 /= n31 = ThirtyOne + | m32 /= n32 = ThirtyTwo + | otherwise = Maskbits.Zero + where + m1 = (b1 oct1a) + m2 = (b2 oct1a) + m3 = (b3 oct1a) + m4 = (b4 oct1a) + m5 = (b5 oct1a) + m6 = (b6 oct1a) + m7 = (b7 oct1a) + m8 = (b8 oct1a) + m9 = (b1 oct2a) + m10 = (b2 oct2a) + m11 = (b3 oct2a) + m12 = (b4 oct2a) + m13 = (b5 oct2a) + m14 = (b6 oct2a) + m15 = (b7 oct2a) + m16 = (b8 oct2a) + m17 = (b1 oct3a) + m18 = (b2 oct3a) + m19 = (b3 oct3a) + m20 = (b4 oct3a) + m21 = (b5 oct3a) + m22 = (b6 oct3a) + m23 = (b7 oct3a) + m24 = (b8 oct3a) + m25 = (b1 oct4a) + m26 = (b2 oct4a) + m27 = (b3 oct4a) + m28 = (b4 oct4a) + m29 = (b5 oct4a) + m30 = (b6 oct4a) + m31 = (b7 oct4a) + m32 = (b8 oct4a) + oct1a = (octet1 addr1) + oct2a = (octet2 addr1) + oct3a = (octet3 addr1) + oct4a = (octet4 addr1) + n1 = (b1 oct1b) + n2 = (b2 oct1b) + n3 = (b3 oct1b) + n4 = (b4 oct1b) + n5 = (b5 oct1b) + n6 = (b6 oct1b) + n7 = (b7 oct1b) + n8 = (b8 oct1b) + n9 = (b1 oct2b) + n10 = (b2 oct2b) + n11 = (b3 oct2b) + n12 = (b4 oct2b) + n13 = (b5 oct2b) + n14 = (b6 oct2b) + n15 = (b7 oct2b) + n16 = (b8 oct2b) + n17 = (b1 oct3b) + n18 = (b2 oct3b) + n19 = (b3 oct3b) + n20 = (b4 oct3b) + n21 = (b5 oct3b) + n22 = (b6 oct3b) + n23 = (b7 oct3b) + n24 = (b8 oct3b) + n25 = (b1 oct4b) + n26 = (b2 oct4b) + n27 = (b3 oct4b) + n28 = (b4 oct4b) + n29 = (b5 oct4b) + n30 = (b6 oct4b) + n31 = (b7 oct4b) + n32 = (b8 oct4b) + oct1b = (octet1 addr2) + oct2b = (octet2 addr2) + oct3b = (octet3 addr2) + oct4b = (octet4 addr2) + + + +-- HUnit Tests +mk_testaddr :: Int -> Int -> Int -> Int -> IPv4Address +mk_testaddr a b c d = + IPv4Address oct1 oct2 oct3 oct4 + where + oct1 = octet_from_int a + oct2 = octet_from_int b + oct3 = octet_from_int c + oct4 = octet_from_int d + + +test_most_sig_bit_different1 = + TestCase $ assertEqual "10.1.1.0 and 10.1.0.0 differ in bit 24" (most_sig_bit_different (mk_testaddr 10 1 1 0) (mk_testaddr 10 1 0 0)) TwentyFour + + +test_most_sig_bit_different2 = + TestCase $ assertEqual "10.1.2.0 and 10.1.1.0 differ in bit 23" (most_sig_bit_different (mk_testaddr 10 1 2 0) (mk_testaddr 10 1 1 0)) TwentyThree + + + +ipv4address_tests = [ test_most_sig_bit_different1, + test_most_sig_bit_different2 ]