mmclibrary-announce — MMC Library Announcements Mailing List

[Peter B. <Pet...@ag...>]

I've noticed that ComStream will keep reading forever (eg, if used with
"XmlDocument.Load"). Replace the "Read" function in the ComStream class
with the following code:

=0D

                        /// <summary>

                        /// Reads a sequence of bytes from the current
stream and advances the position within the stream=0D

                        /// by the number of bytes read.

                        /// </summary>

                        /// <param name=3D"buffer">An array of bytes. When
this method returns, the buffer contains the specified=0D

                        /// byte array with the values between offset
and (offset + count- 1) replaced by the bytes read from the=0D

                        /// current source.</param>

                        /// <param name=3D"offset">The zero-based byte
offset in buffer at which to begin storing the data read=0D

                        /// from the current stream.</param>

                        /// <param name=3D"count">The maximum number of
bytes to be read from the current stream.</param>

                        /// <returns></returns>

                        public override int Read([In,Out] byte[] buffer,
int offset, int count)=0D

                        {

                                    byte[] buf =3D new byte[count];


                                    System.IntPtr lenPtr =3D
Marshal.AllocCoTaskMem( 4 );

                                    this.comStream.Read(buf, count,
lenPtr);

                                    int len =3D Marshal.ReadInt32( lenPtr
);

                                    Marshal.FreeCoTaskMem( lenPtr );

                                    m_readCount +=3D len;

=0D
System.Diagnostics.Debug.WriteLine("Read: " + m_readCount + " bytes of
the requested: " + count + " bytes");

                                    Array.Copy( buf, buffer, len );

                                    return len;

                        }

=0D

PS: Who should I be emailing about such bugs in the future?



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