/// <summary>
/// Note: this doesn't keep the SecureString secure.
/// </summary>
/// <param name="writer"></param>
/// <param name="secure"></param>
public static void Write(this BinaryWriter writer, SecureString secure)
{
var bwx = new BinaryWriterEx(writer.BaseStream);
byte[] utf16 = new byte[secure.Length * 2];
var ptr = Marshal.SecureStringToBSTR(secure);
var len = Marshal.ReadInt32(ptr, -4);
for (int i = 0; i < len; i += 2)
{
utf16[i] = Marshal.ReadByte(ptr, i);
}
Marshal.ZeroFreeBSTR(ptr);
byte[] utf8 = UTF8Encoding.Convert(Encoding.Unicode, Encoding.UTF8, utf16);
for (int i = 0; i < utf16.Length; i++)
{
utf16[i] = 0; // clear memory
}
bwx.Write7BitEncodedInt(utf8.Length);
for (int i = 0; i < utf8.Length; i++)
{
bwx.Write(utf8[i]);
utf8[i] = 0;
}
}
private static void WriteParameters(BinaryWriterEx writer, d3dx_parameter[] parameters, int count)
{
writer.Write7BitEncodedInt(count);
for (var i = 0; i < count; i++)
{
WriteParameter(writer, parameters[i]);
}
}