private static IList <HeaderBlock> LoadFromReader(AxCryptReaderBase vxReader)
{
List <HeaderBlock> headers = new List <HeaderBlock>();
vxReader.Read();
if (vxReader.CurrentItemType != AxCryptItemType.MagicGuid)
{
throw new FileFormatException("No magic Guid was found.", ErrorStatus.MagicGuidMissing);
}
ReadHeadersToLast(headers, vxReader, HeaderBlockType.Data);
return(headers);
}
private static void ReadHeadersToLast(IList <HeaderBlock> headerBlocks, AxCryptReaderBase axCryptReader, HeaderBlockType last)
{
while (axCryptReader.Read())
{
switch (axCryptReader.CurrentItemType)
{
case AxCryptItemType.Data:
case AxCryptItemType.HeaderBlock:
break;
default:
throw new InternalErrorException("The reader returned an item type it should not be possible for it to return.");
}
headerBlocks.Add(axCryptReader.CurrentHeaderBlock);
if (axCryptReader.CurrentHeaderBlock.HeaderBlockType == last)
{
return;
}
}
throw new FileFormatException("Premature end of stream.", ErrorStatus.EndOfStream);
}