66 lines
2.4 KiB
C#
66 lines
2.4 KiB
C#
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using System.Net.NetworkInformation;
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namespace Ryujinx.Common.Utilities
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{
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public static class NetworkHelpers
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{
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private static (IPInterfaceProperties, UnicastIPAddressInformation) GetLocalInterface(NetworkInterface adapter, bool isPreferred)
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{
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IPInterfaceProperties properties = adapter.GetIPProperties();
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if (isPreferred || (properties.GatewayAddresses.Count > 0 && properties.DnsAddresses.Count > 0))
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{
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foreach (UnicastIPAddressInformation info in properties.UnicastAddresses)
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{
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// Only accept an IPv4 address
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if (info.Address.GetAddressBytes().Length == 4)
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{
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return (properties, info);
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}
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}
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}
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return (null, null);
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}
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public static (IPInterfaceProperties, UnicastIPAddressInformation) GetLocalInterface(string lanInterfaceId = "0")
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{
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if (!NetworkInterface.GetIsNetworkAvailable())
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{
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return (null, null);
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}
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IPInterfaceProperties targetProperties = null;
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UnicastIPAddressInformation targetAddressInfo = null;
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NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();
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string guid = lanInterfaceId;
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bool hasPreference = guid != "0";
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foreach (NetworkInterface adapter in interfaces)
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{
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bool isPreferred = adapter.Id == guid;
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// Ignore loopback and non IPv4 capable interface.
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if (isPreferred || (targetProperties == null && adapter.NetworkInterfaceType != NetworkInterfaceType.Loopback && adapter.Supports(NetworkInterfaceComponent.IPv4)))
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{
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(IPInterfaceProperties properties, UnicastIPAddressInformation info) = GetLocalInterface(adapter, isPreferred);
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if (properties != null)
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{
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targetProperties = properties;
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targetAddressInfo = info;
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if (isPreferred || !hasPreference)
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{
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break;
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}
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}
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}
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}
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return (targetProperties, targetAddressInfo);
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}
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}
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}
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