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https://github.com/ORelio/Minecraft-Console-Client/issues/493: UUID not properly storing due to GUID conversion (need to convert a Java big-endian Guid to a C# little-endian Guid)

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TheSnoozer 2019-03-30 11:27:02 -04:00 • committed by ORelio
parent 33edd15c9b
commit b57630a5e4
1 changed files with 33 additions and 1 deletions
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34
MinecraftClient/Protocol/Handlers/Protocol18.cs
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@ -1368,7 +1368,39 @@ namespace MinecraftClient.Protocol.Handlers
/// <returns>The uuid</returns>
private static Guid readNextUUID(List<byte> cache)
{
return new Guid(readData(16, cache));
byte[] javaUUID = readData(16, cache);
Guid guid;
if (BitConverter.IsLittleEndian)
{
guid = ToLittleEndian(javaUUID);
}
else
{
guid = new Guid(javaUUID);
}
return guid;
}
/// <summary>
/// convert a Java big-endian Guid to a .NET little-endian Guid.
/// </summary>
/// <returns>GUID in little endian.</returns>
private static Guid ToLittleEndian(byte[] java)
{
byte[] net = new byte[16];
for (int i = 8; i < 16; i++)
{
net[i] = java[i];
}
net[3] = java[0];
net[2] = java[1];
net[1] = java[2];
net[0] = java[3];
net[5] = java[4];
net[4] = java[5];
net[6] = java[7];
net[7] = java[6];
return new Guid(net);
}
/// <summary>