System.Net.SecPkgContext_StreamSizes.SecPkgContext_StreamSizes C# (CSharp) Method

        internal unsafe SecPkgContext_StreamSizes(byte[] memory)
        {
            fixed (void* voidPtr = memory)
            {
                var unmanagedAddress = new IntPtr(voidPtr);
                try
                {
                    // TODO (Issue #3114): replace with Marshal.PtrToStructure.
                    cbHeader = (int)checked((uint)Marshal.ReadInt32(unmanagedAddress));
                    cbTrailer = (int)checked((uint)Marshal.ReadInt32(unmanagedAddress, 4));
                    cbMaximumMessage = (int)checked((uint)Marshal.ReadInt32(unmanagedAddress, 8));
                    cBuffers = (int)checked((uint)Marshal.ReadInt32(unmanagedAddress, 12));
                    cbBlockSize = (int)checked((uint)Marshal.ReadInt32(unmanagedAddress, 16));
                }
                catch (OverflowException)
                {
                    NetEventSource.Fail(this, "Negative size.");
                    throw;
                }
            }
        }