コード例 #1
0
        internal CompoundDocument(Stream stream, FileHeader header)
        {
            this.FileStorage = stream;
            this.Reader = new BinaryReader(this.FileStorage);

            // added this "if" to prevent exception when file is read only
            if( this.FileStorage.CanWrite )
                this.Writer = new BinaryWriter(this.FileStorage, Encoding.Unicode);

            this.Header = header;
            this.SectorSize = (int)Math.Pow(2, Header.SectorSizeInPot);

            // prevent errors by limiting sector size to a most used value of 2^9
            // compare it to zero because this integer can overflow
            if (this.SectorSize < 0)
                this.SectorSize = 512;

            this.ShortSectorSize = (int)Math.Pow(2, Header.ShortSectorSizeInPot);

            // prevent errors by limiting sector size to a most used value of 2^6
            // compare it to zero because this integer can overflow
            if (this.ShortSectorSize < 0)
                this.ShortSectorSize = 64;

            this.TotalSectors = stream.Length == 0 ? 0
                : (int)(stream.Length - 512) / this.SectorSize;

            this.MasterSectorAllocation = new MasterSectorAllocation(this);
            this.SectorAllocation = new SectorAllocation(this);
            this.ShortSectorAllocation = new ShortSectorAllocation(this);
        }
コード例 #2
0
 internal CompoundDocument(Stream stream, FileHeader header)
 {
     this.FileStorage = stream;
     this.Reader      = new BinaryReader(this.FileStorage);
     this.Writer      = new BinaryWriter(this.FileStorage, Encoding.Unicode);
     this.Header      = header;
     checked
     {
         this.SectorSize             = (int)Math.Pow(2.0, (double)this.Header.SectorSizeInPot);
         this.ShortSectorSize        = (int)Math.Pow(2.0, (double)this.Header.ShortSectorSizeInPot);
         this.TotalSectors           = ((stream.Length == 0L) ? 0 : ((int)(stream.Length - 512L) / this.SectorSize));
         this.MasterSectorAllocation = new MasterSectorAllocation(this);
         this.SectorAllocation       = new SectorAllocation(this);
         this.ShortSectorAllocation  = new ShortSectorAllocation(this);
     }
 }
コード例 #3
0
        internal CompoundDocument(Stream stream, FileHeader header)
        {
            this.FileStorage = stream;
            this.Reader = new BinaryReader(this.FileStorage);
            this.Writer = new BinaryWriter(this.FileStorage, Encoding.Unicode);

            this.Header = header;
            this.SectorSize = (int)Math.Pow(2, Header.SectorSizeInPot);
            this.ShortSectorSize = (int)Math.Pow(2, Header.ShortSectorSizeInPot);
            this.TotalSectors = stream.Length == 0 ? 0
                : (int)(stream.Length - 512) / this.SectorSize;

            this.MasterSectorAllocation = new MasterSectorAllocation(this);
            this.SectorAllocation = new SectorAllocation(this);
            this.ShortSectorAllocation = new ShortSectorAllocation(this);
        }
コード例 #4
0
        internal CompoundDocument(Stream stream, FileHeader header)
        {
            this.FileStorage = stream;
            this.Reader      = new BinaryReader(this.FileStorage);
            if (stream.CanWrite)
            {
                this.Writer = new BinaryWriter(this.FileStorage, Encoding.Unicode);
            }

            this.Header          = header;
            this.SectorSize      = (int)Math.Pow(2, Header.SectorSizeInPot);
            this.ShortSectorSize = (int)Math.Pow(2, Header.ShortSectorSizeInPot);
            this.TotalSectors    = stream.Length == 0 ? 0
                : (int)(stream.Length - 512) / this.SectorSize;

            this.MasterSectorAllocation = new MasterSectorAllocation(this);
            this.SectorAllocation       = new SectorAllocation(this);
            this.ShortSectorAllocation  = new ShortSectorAllocation(this);
        }
コード例 #5
0
        internal CompoundDocument(Stream stream, FileHeader header)
        {
            this.FileStorage = stream;
            this.Reader      = new BinaryReader(this.FileStorage);
            try
            {
                this.Writer = new BinaryWriter(this.FileStorage, Encoding.Unicode);
            }
            catch (Exception StreamNotReadable)
            {
                Console.Write("stream not readable");
            }

            this.Header          = header;
            this.SectorSize      = (int)Math.Pow(2, Header.SectorSizeInPot);
            this.ShortSectorSize = (int)Math.Pow(2, Header.ShortSectorSizeInPot);
            this.TotalSectors    = stream.Length == 0 ? 0
                : (int)(stream.Length - 512) / this.SectorSize;

            this.MasterSectorAllocation = new MasterSectorAllocation(this);
            this.SectorAllocation       = new SectorAllocation(this);
            this.ShortSectorAllocation  = new ShortSectorAllocation(this);
        }