/// <summary>
/// Initialize host address information.
/// </summary>
static UUID()
{
bool isRealAddress = false;
bool isIPv6 = false;
int addr1 = 0x00000000;
int addr2 = 0x00000000;
int addr3 = 0x00000000;
int addr4 = 0x00000000;
try
{
IPAddress addr = NetworkUtils.GetLocalHostAddress();
byte[] ipBytes = NO_BYTES;
if (addr != null)
{
ipBytes = addr.GetAddressBytes();
}
switch (ipBytes.Length)
{
case 4:
{
int ip = (ipBytes[0] & 0xFF) << 24 | (ipBytes[1] & 0xFF) << 16 | (ipBytes[2] & 0xFF) << 8 | (ipBytes[3] & 0xFF);
if (ip != 0x00000000 && ip != 0x7F000001)
{
isRealAddress = true;
addr1 = ip;
}
}
break;
case 16:
{
int ip1 = (ipBytes[0] & 0xFF) << 24 | (ipBytes[1] & 0xFF) << 16 | (ipBytes[2] & 0xFF) << 8 | (ipBytes[3] & 0xFF);
int ip2 = (ipBytes[4] & 0xFF) << 24 | (ipBytes[5] & 0xFF) << 16 | (ipBytes[6] & 0xFF) << 8 | (ipBytes[7] & 0xFF);
int ip3 = (ipBytes[8] & 0xFF) << 24 | (ipBytes[9] & 0xFF) << 16 | (ipBytes[10] & 0xFF) << 8 | (ipBytes[11] & 0xFF);
int ip4 = (ipBytes[12] & 0xFF) << 24 | (ipBytes[13] & 0xFF) << 16 | (ipBytes[14] & 0xFF) << 8 | (ipBytes[15] & 0xFF);
if (!(ip1 == 0x00000000 && ip2 == 0x00000000 && ip3 == 0x00000000 && (ip4 == 0x00000000 || ip4 == 0x00000001)) && !((ipBytes[0] & 0xFF) == 0xFE && (ipBytes[1] & 0xC0) == 0x80))
// link-local
{
isRealAddress = true;
isIPv6 = true;
addr1 = ip1;
addr2 = ip2;
addr3 = ip3;
addr4 = ip4;
}
}
break;
}
}
catch (Exception)
{}
s_isRealAddress = isRealAddress;
s_isIPv6 = isIPv6;
s_addr1 = addr1;
s_addr2 = addr2;
s_addr3 = addr3;
s_addr4 = addr4;
}