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41 lines
1.0 KiB
41 lines
1.0 KiB
using System.Net;
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using System.Net.Sockets;
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namespace NzbDrone.Common.Extensions
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{
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public static class IPAddressExtensions
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{
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public static bool IsLocalAddress(this IPAddress ipAddress)
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{
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if (ipAddress.IsIPv6LinkLocal)
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{
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return true;
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}
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if (IPAddress.IsLoopback(ipAddress))
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{
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return true;
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}
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if (ipAddress.AddressFamily == AddressFamily.InterNetwork)
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{
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byte[] bytes = ipAddress.GetAddressBytes();
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switch (bytes[0])
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{
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case 10:
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case 127:
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return true;
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case 172:
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return bytes[1] < 32 && bytes[1] >= 16;
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case 192:
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return bytes[1] == 168;
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default:
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return false;
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}
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}
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return false;
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}
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}
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}
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