private static Stream GetSafeTeeOutputStream(Stream s1, Stream s2)
{
if (s1 == null)
{
return(CmsSignedDataStreamGenerator.GetSafeOutputStream(s2));
}
if (s2 == null)
{
return(CmsSignedDataStreamGenerator.GetSafeOutputStream(s1));
}
return(new TeeOutputStream(s1, s2));
}
