Calculates a 32bit Cyclic Redundancy Checksum (CRC) using the same polynomial used by Zip. This type is used internally by DotNetZip; it is generally not used directly by applications wishing to create, read, or manipulate zip archive files.
Exemplo n.º 1
0
 public ZlibBaseStream(System.IO.Stream stream, ZlibStreamFlavor flavor, bool leaveOpen)
     : base()
 {
     this._flushMode = FlushType.None;
     //this._workingBuffer = new byte[WORKING_BUFFER_SIZE_DEFAULT];
     this._stream = stream;
     this._leaveOpen = leaveOpen;
     this._flavor = flavor;
     // workitem 7159
     if (flavor == ZlibStreamFlavor.GZIP)
     {
         crc = new CRC32();
     }
 }
Exemplo n.º 2
0
 // This ctor is private - no validation is done here.  This is to allow the use
 // of a (specific) negative value for the _lengthLimit, to indicate that there
 // is no length set.  So we validate the length limit in those ctors that use an
 // explicit param, otherwise we don't validate, because it could be our special
 // value.
 private CrcCalculatorStream(bool leaveOpen, Int64 length, System.IO.Stream stream)
     : base()
 {
     _innerStream = stream;
     _Crc32 = new CRC32();
     _lengthLimit = length;
     _leaveOpen = leaveOpen;
 }