public IPv4Network(IPv4 ipNetwork, int maskLength)
{
if (maskLength < 0 || maskLength > IPv4.BitCount) {
throw new ArgumentException();
}
this.maskLength = maskLength;
this.ipNetwork = ipNetwork & IPv4.NetMask(maskLength);
}
private static void TestBits()
{
IPv4 a = new IPv4(0x7f7f7f7f);
IPv4 b = new IPv4(0xc1c1c1c1);
if ((uint)(a | b) != ~0U)
{
throw new TestFailedException("OR");
}
if ((uint)(a & b) != 0x41414141)
{
throw new TestFailedException("AND");
}
if ((uint)(a ^ b) != 0xbebebebe)
{
throw new TestFailedException("XOR");
}
if ((uint)(~a) != 0x80808080)
{
throw new TestFailedException("NOT");
}
if ((uint)IPv4.NetMask(0) != 0)
{
throw new TestFailedException("NetMask(0)");
}
if ((uint)IPv4.NetMask(17) != 0xffff8000)
{
throw new TestFailedException("NetMask(17)");
}
if ((uint)IPv4.NetMask(32) != 0xffffffffu)
{
throw new TestFailedException("NetMask(32)");
}
try {
IPv4 n = IPv4.NetMask(66);
throw new TestFailedException("Bad Netmask +");
}
catch (ArgumentException) {
}
try {
IPv4 n = IPv4.NetMask(-1);
throw new TestFailedException("Bad Netmask -");
}
catch (ArgumentException) {
}
}
public static void TestCount()
{
for (int i = IPv4.BitCount; i >= 0; i--)
{
IPv4 addr = IPv4.NetMask(i);
if (IPv4.GetMaskLength(addr) != i)
{
throw new TestFailedException(
String.Format("TestCount {0}", i)
);
}
IPv4 addrDup = IPv4.Parse(addr.ToString());
if (addrDup != addr)
{
throw new TestFailedException(
String.Format("TestCountDup {0}", i)
);
}
}
}
public IPv4Network(IPv4 networkAddress, IPv4 networkMask)
{
this.maskLength = IPv4.GetMaskLength(networkMask);
this.ipNetwork = networkAddress & IPv4.NetMask(this.maskLength);
}