| static private FindBroadcastAddress ( bool strict ) : IPAddress, | ||
| strict | bool | |
| return | IPAddress, | |
private static IPAddress FindBroadcastAddress(bool strict)
{
NetworkInterface[] allNetworkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
NetworkInterface[] array = allNetworkInterfaces;
int i = 0;
while (i < array.Length)
{
NetworkInterface networkInterface = array[i];
NetworkInterfaceType networkInterfaceType = networkInterface.NetworkInterfaceType;
switch (networkInterfaceType)
{
case NetworkInterfaceType.FastEthernetFx:
case NetworkInterfaceType.Wireless80211:
goto IL_59;
case (NetworkInterfaceType)70:
IL_31:
if (networkInterfaceType != NetworkInterfaceType.Ethernet && networkInterfaceType != NetworkInterfaceType.Ethernet3Megabit && networkInterfaceType != NetworkInterfaceType.FastEthernetT && networkInterfaceType != NetworkInterfaceType.GigabitEthernet)
{
goto IL_182;
}
goto IL_59;
}
goto IL_31;
IL_182:
i++;
continue;
IL_59:
if (networkInterface.OperationalStatus == OperationalStatus.Up || networkInterface.OperationalStatus == OperationalStatus.Unknown)
{
IPInterfaceProperties iPProperties = networkInterface.GetIPProperties();
if (!strict || DotNetPlatform.IsValidInterface(networkInterface, iPProperties))
{
foreach (UnicastIPAddressInformation current in iPProperties.UnicastAddresses)
{
if (current.Address.AddressFamily == AddressFamily.InterNetwork)
{
IPAddress result;
if (iPProperties.DhcpServerAddresses.Count == 0 && !strict)
{
byte[] addressBytes = current.Address.GetAddressBytes();
addressBytes[3] = 255;
result = new IPAddress(addressBytes);
return(result);
}
byte[] addressBytes2 = iPProperties.DhcpServerAddresses[0].GetAddressBytes();
byte[] addressBytes3 = current.IPv4Mask.GetAddressBytes();
byte[] array2 = new byte[4];
for (int j = 0; j < addressBytes2.Length; j++)
{
array2[j] = ((addressBytes2[j] & addressBytes3[j]) | ~addressBytes3[j]);
}
result = new IPAddress(array2);
return(result);
}
}
}
}
goto IL_182;
}
if (strict)
{
return(DotNetPlatform.FindBroadcastAddress(false));
}
return(IPAddress.Any);
}
public override UdpIPv4Address GetBroadcastAddress()
{
return(new UdpIPv4Address(DotNetPlatform.FindBroadcastAddress(true).Address));
}
private static IPAddress FindBroadcastAddress(bool strict)
{
NetworkInterface[] allNetworkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
NetworkInterface[] array = allNetworkInterfaces;
int i = 0;
while (i < array.Length)
{
NetworkInterface networkInterface = array[i];
NetworkInterfaceType networkInterfaceType = networkInterface.NetworkInterfaceType;
switch (networkInterfaceType)
{
case NetworkInterfaceType.FastEthernetFx:
case NetworkInterfaceType.Wireless80211:
goto IL_59;
default:
if (networkInterfaceType == NetworkInterfaceType.Ethernet || networkInterfaceType == NetworkInterfaceType.Ethernet3Megabit || networkInterfaceType == NetworkInterfaceType.FastEthernetT || networkInterfaceType == NetworkInterfaceType.GigabitEthernet)
{
goto IL_59;
}
break;
}
IL_184:
i++;
continue;
IL_59:
if (networkInterface.OperationalStatus == OperationalStatus.Up || networkInterface.OperationalStatus == OperationalStatus.Unknown)
{
IPInterfaceProperties ipproperties = networkInterface.GetIPProperties();
if (!strict || DotNetPlatform.IsValidInterface(networkInterface, ipproperties))
{
foreach (UnicastIPAddressInformation unicastIPAddressInformation in ipproperties.UnicastAddresses)
{
if (unicastIPAddressInformation.Address.AddressFamily == AddressFamily.InterNetwork)
{
if (ipproperties.DhcpServerAddresses.Count == 0 && !strict)
{
byte[] addressBytes = unicastIPAddressInformation.Address.GetAddressBytes();
addressBytes[3] = byte.MaxValue;
return(new IPAddress(addressBytes));
}
byte[] addressBytes2 = ipproperties.DhcpServerAddresses[0].GetAddressBytes();
byte[] addressBytes3 = unicastIPAddressInformation.IPv4Mask.GetAddressBytes();
byte[] array2 = new byte[4];
for (int j = 0; j < addressBytes2.Length; j++)
{
array2[j] = ((addressBytes2[j] & addressBytes3[j]) | ~addressBytes3[j]);
}
return(new IPAddress(array2));
}
}
}
}
goto IL_184;
}
if (strict)
{
return(DotNetPlatform.FindBroadcastAddress(false));
}
return(IPAddress.Any);
}
