Workaround_Ladybug318918() private method

private Workaround_Ladybug318918 ( Stream s ) : void
s Stream
return void
        /// <summary>
        ///   Read the next entry from the zip file.
        /// </summary>
        ///
        /// <remarks>
        /// <para>
        ///   Call this method just before calling <see cref="Read(byte[], int, int)"/>,
        ///   to position the pointer in the zip file to the next entry that can be
        ///   read.  Subsequent calls to <c>Read()</c>, will decrypt and decompress the
        ///   data in the zip file, until <c>Read()</c> returns 0.
        /// </para>
        ///
        /// <para>
        ///   Each time you call <c>GetNextEntry()</c>, the pointer in the wrapped
        ///   stream is moved to the next entry in the zip file.  If you call <see
        ///   cref="Seek(long, SeekOrigin)"/>, and thus re-position the pointer within
        ///   the file, you will need to call <c>GetNextEntry()</c> again, to insure
        ///   that the file pointer is positioned at the beginning of a zip entry.
        /// </para>
        ///
        /// <para>
        ///   This method returns the <c>ZipEntry</c>. Using a stream approach, you will
        ///   read the raw bytes for an entry in a zip file via calls to <c>Read()</c>.
        ///   Alternatively, you can extract an entry into a file, or a stream, by
        ///   calling <see cref="ZipEntry.Extract()"/>, or one of its siblings.
        /// </para>
        ///
        /// </remarks>
        ///
        /// <returns>
        ///   The <c>ZipEntry</c> read. Returns null (or Nothing in VB) if there are no more
        ///   entries in the zip file.
        /// </returns>
        ///
        public ZipEntry GetNextEntry()
        {
            if (_findRequired)
            {
                // find the next signature
                long d = SharedUtilities.FindSignature(_inputStream, ZipConstants.ZipEntrySignature);
                if (d == -1)
                {
                    return(null);
                }
                // back up 4 bytes: ReadEntry assumes the file pointer is positioned before the entry signature
                _inputStream.Seek(-4, SeekOrigin.Current);
                // workitem 10178
                SharedUtilities.Workaround_Ladybug318918(_inputStream);
            }
            // workitem 10923
            else if (_firstEntry)
            {
                // we've already read one entry.
                // Seek to the end of it.
                _inputStream.Seek(_endOfEntry, SeekOrigin.Begin);
                SharedUtilities.Workaround_Ladybug318918(_inputStream);
            }

            _currentEntry = ZipEntry.ReadEntry(_container, !_firstEntry);
            // ReadEntry leaves the file position after all the entry
            // data and the optional bit-3 data descriptpr.  This is
            // where the next entry would normally start.
            _endOfEntry   = _inputStream.Position;
            _firstEntry   = true;
            _needSetup    = true;
            _findRequired = false;
            return(_currentEntry);
        }
        /// <summary>
        ///   Read the data from the stream into the buffer.
        /// </summary>
        ///
        /// <remarks>
        /// <para>
        ///   The data for the zipentry will be decrypted and uncompressed, as
        ///   necessary, before being copied into the buffer.
        /// </para>
        ///
        /// <para>
        ///   You must set the <see cref="Password"/> property before calling
        ///   <c>Read()</c> the first time for an encrypted entry.  To determine if an
        ///   entry is encrypted and requires a password, check the <see
        ///   cref="ZipEntry.Encryption">ZipEntry.Encryption</see> property.
        /// </para>
        /// </remarks>
        ///
        /// <param name="buffer">The buffer to hold the data read from the stream.</param>
        /// <param name="offset">the offset within the buffer to copy the first byte read.</param>
        /// <param name="count">the number of bytes to read.</param>
        /// <returns>the number of bytes read, after decryption and decompression.</returns>
        public override int Read(byte[] buffer, int offset, int count)
        {
            if (_closed)
            {
                _exceptionPending = true;
                throw new System.InvalidOperationException("The stream has been closed.");
            }

            if (_needSetup)
            {
                SetupStream();
            }

            if (_LeftToRead == 0)
            {
                return(0);
            }

            int len = (_LeftToRead > count) ? count : (int)_LeftToRead;
            int n   = _crcStream.Read(buffer, offset, len);

            _LeftToRead -= n;

            if (_LeftToRead == 0)
            {
                int CrcResult = _crcStream.Crc;
                _currentEntry.VerifyCrcAfterExtract(CrcResult);
                _inputStream.Seek(_endOfEntry, SeekOrigin.Begin);
                // workitem 10178
                SharedUtilities.Workaround_Ladybug318918(_inputStream);
            }

            return(n);
        }
        /// <summary>
        ///   This method seeks in the underlying stream.
        /// </summary>
        ///
        /// <remarks>
        /// <para>
        ///   Call this method if you want to seek around within the zip file for random access.
        /// </para>
        ///
        /// <para>
        ///   Applications can intermix calls to <c>Seek()</c> with calls to <see
        ///   cref="GetNextEntry()"/>.  After a call to <c>Seek()</c>,
        ///   <c>GetNextEntry()</c> will get the next <c>ZipEntry</c> that falls after
        ///   the current position in the input stream. You're on your own for finding
        ///   out just where to seek in the stream, to get to the various entries.
        /// </para>
        ///
        /// </remarks>
        ///
        /// <param name="offset">the offset point to seek to</param>
        /// <param name="origin">the reference point from which to seek</param>
        /// <returns>The new position</returns>
        public override long Seek(long offset, SeekOrigin origin)
        {
            _findRequired = true;
            var x = _inputStream.Seek(offset, origin);

            // workitem 10178
            SharedUtilities.Workaround_Ladybug318918(_inputStream);
            return(x);
        }