public static bool TryParse(string text, out IPAddress address)
{
address = null;
if (String.IsNullOrWhiteSpace(text))
{
return false;
}
var segments = text.Split('.');
var addressBytes = new byte[4];
if (segments.Length == 3)
{
if (!ExtractThreeSegments(addressBytes, segments))
{
return false;
}
}
else if (segments.Length == 4)
{
if (!ExtractFourSegments(addressBytes, segments))
{
return false;
}
}
else
{
return false;
}
address = new IPAddress(addressBytes);
return true;
}
public IPNetwork(uint value, byte prefixLength)
{
if (!IPNetworkHelper.IsValidNetworkPrefixLength(prefixLength))
{
throw new ArgumentOutOfRangeException("prefixLength");
}
m_prefixLength = prefixLength;
// TODO: Consider moving GetNetworkMaskValue into constructor IPNetworkMask since we now have a separate class for it...
m_networkMask = new IPNetworkMask(IPNetworkHelper.GetNetworkMaskValue(m_prefixLength));
m_networkAddressValue = value & m_networkMask.Value;
m_networkAddress = new IPAddress(m_networkAddressValue);
if (m_prefixLength < 32)
{
m_firstUsableAddress = new IPAddress(m_networkAddressValue + 1);
var wildcardMask = 0xffffffff - m_networkMask.Value;
var broadcastAddressValue = m_networkAddressValue | wildcardMask;
m_lastUsableAddress = new IPAddress(broadcastAddressValue - 1);
m_broadcastAddress = new IPAddress(broadcastAddressValue);
m_usableAddresses = new IPAddressRange(m_firstUsableAddress, m_lastUsableAddress);
}
else
{
m_usableAddresses = IPAddressRange.Empty;
}
}
public IPEndpoint(IPAddress address, ushort port)
{
if (address == null)
{
throw new ArgumentNullException("address");
}
m_address = address;
m_port = port;
m_serviceName = m_port.ToString(CultureInfo.InvariantCulture);
}
public ConnectionInfo(IPAddress address, IPNetwork network)
{
if (address == null)
{
throw new ArgumentNullException("address");
}
if (network == null)
{
throw new ArgumentNullException("network");
}
m_address = address;
m_network = network;
}
public DhcpInfo(IPAddress gatewayAddress, IPAddress dnsServerAddress, string domainName)
{
if (gatewayAddress == null)
{
throw new ArgumentNullException("gatewayAddress");
}
if (dnsServerAddress == null)
{
throw new ArgumentNullException("dnsServerAddress");
}
m_gatewayAddress = gatewayAddress;
m_dnsServerAddress = dnsServerAddress;
m_domainName = domainName;
}
public HostInfo(Guid networkAdapterId, HostName hostName, IPAddress address)
{
if (hostName == null)
{
throw new ArgumentNullException("hostName");
}
if (address == null)
{
throw new ArgumentNullException("address");
}
m_networkAdapterId = networkAdapterId;
m_hostName = hostName;
m_address = address;
}
public IPHostEntry(string hostName, IPAddress[] addresses, string[] aliases)
{
if (string.IsNullOrWhiteSpace(hostName))
{
throw new ArgumentException("Invalid host name", "hostName");
}
if (addresses == null)
{
throw new ArgumentNullException("addresses");
}
if (aliases == null)
{
throw new ArgumentNullException("aliases");
}
m_hostName = hostName;
m_addresses = addresses;
m_aliases = aliases;
}
private static IPAddress GetAddress(IntPtr data, int offset = 0)
{
var addressBytes = (DHCPCAPI_IP_ADDRESS)Marshal.PtrToStructure(data + offset, typeof(DHCPCAPI_IP_ADDRESS));
var result = new IPAddress(new[]
{
addressBytes.Value0,
addressBytes.Value1,
addressBytes.Value2,
addressBytes.Value3
});
return result;
}
private static IPAddress[] GetAddresses(IntPtr data, int addressCount)
{
var addresses = new IPAddress[addressCount];
for (int i = 0, offset = 0; i < addressCount; ++i, offset += 4)
{
addresses[i] = GetAddress(data, offset);
}
return addresses;
}
public IPNetwork(IPAddress networkAddress, byte prefixLength)
: this(GetAddressValue(networkAddress), prefixLength)
{
}
private static uint GetAddressValue(IPAddress networkAddress)
{
if (networkAddress == null)
{
throw new ArgumentNullException("networkAddress");
}
var result = networkAddress.Value;
return result;
}
