WINHTTP_CONNECTION_INFO maybe incorrect padding

[GF-Huang]

Describe the bug and how to reproduce

The WINHTTP_CONNECTION_INFO maybe has wrong padding between field cbSize and LocalAddress.

C#

C++

What code is involved

uint bufferLength = (uint)Marshal.SizeOf<WINHTTP_CONNECTION_INFO>();
using var buffer = new SafeByteArray((int)bufferLength);

if (WinHttpQueryOption(hInternet, WINHTTP_OPTION.WINHTTP_OPTION_CONNECTION_INFO, buffer, ref bufferLength)) {
    var info1 = Marshal.PtrToStructure<WINHTTP_CONNECTION_INFO>(buffer);
    Console.WriteLine($"{SockaddrStorageToEndPoint(info1.LocalAddress)} -> {SockaddrStorageToEndPoint(info1.RemoteAddress)}");

} else {
    Console.WriteLine(GetLastError());   // Always go here, because the WINHTTP_CONNECTION_INFO size incorrect.
}

Expected behavior

Marshal.SizeOf<WINHTTP_CONNECTION_INFO>() should be 264.

[GF-Huang]

I try to define a duplicate of WINHTTP_CONNECTION_INFO with Pack = 8, which fix this issue.

Vanara/PInvoke/WinHTTP/WinHTTP.Structs.cs

Line 372 in 72cb218

[StructLayout(LayoutKind.Sequential, Pack = 4)]