public override void Write(byte[] buffer, int offset, int count)
{
if (this.crc != null)
{
this.crc.SlurpBlock(buffer, offset, count);
}
if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
{
this._streamMode = ZlibBaseStream.StreamMode.Writer;
}
else if (this._streamMode != ZlibBaseStream.StreamMode.Writer)
{
throw new ZlibException("Cannot Write after Reading.");
}
if (count == 0)
{
return;
}
this.z.InputBuffer = buffer;
this._z.Reset();
this._z.NextIn = offset;
this._z.AvailableBytesIn = count;
while (true)
{
this._z.OutputBuffer = this.workingBuffer;
this._z.NextOut = 0;
this._z.AvailableBytesOut = this._workingBuffer.Length;
int num = this._wantCompress ? this._z.Deflate(this._flushMode) : this._z.Inflate(this._flushMode);
if (num != 0 && num != 1)
{
break;
}
this._stream.Write(this._workingBuffer, 0, this._workingBuffer.Length - this._z.AvailableBytesOut);
bool flag = this._z.AvailableBytesIn == 0 && this._z.AvailableBytesOut != 0;
if (this._flavor == ZlibStreamFlavor.GZIP && !this._wantCompress)
{
flag = (this._z.AvailableBytesIn == 8 && this._z.AvailableBytesOut != 0);
}
if (flag)
{
return;
}
}
throw new ZlibException((this._wantCompress ? "de" : "in") + "flating: " + this._z.Message);
}
public override int Read(byte[] buffer, int offset, int count)
{
if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
{
if (!this._stream.CanRead)
{
throw new ZlibException("The stream is not readable.");
}
this._streamMode = ZlibBaseStream.StreamMode.Reader;
this.z.AvailableBytesIn = 0;
if (this._flavor == ZlibStreamFlavor.GZIP)
{
this._gzipHeaderByteCount = this._ReadAndValidateGzipHeader();
if (this._gzipHeaderByteCount == 0)
{
return(0);
}
}
}
if (this._streamMode != ZlibBaseStream.StreamMode.Reader)
{
throw new ZlibException("Cannot Read after Writing.");
}
if (count == 0)
{
return(0);
}
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count");
}
if (offset < buffer.GetLowerBound(0))
{
throw new ArgumentOutOfRangeException("offset");
}
if (offset + count > buffer.GetLength(0))
{
throw new ArgumentOutOfRangeException("count");
}
this._z.OutputBuffer = buffer;
this._z.NextOut = offset;
this._z.AvailableBytesOut = count;
this._z.InputBuffer = this.workingBuffer;
int num;
do
{
if (this._z.AvailableBytesIn == 0 && !this.nomoreinput)
{
this._z.NextIn = 0;
this._z.AvailableBytesIn = this._stream.Read(this._workingBuffer, 0, this._workingBuffer.Length);
if (this._z.AvailableBytesIn == 0)
{
this.nomoreinput = true;
}
}
num = this._z.Inflate(this._flushMode);
if (this.nomoreinput && num == -5)
{
return(0);
}
if (num != 0 && num != 1)
{
throw new ZlibException(string.Format("inflating: rc={0} msg={1}", (object)num, (object)this._z.Message));
}
}while ((!this.nomoreinput && num != 1 || this._z.AvailableBytesOut != count) && (this._z.AvailableBytesOut > 0 && !this.nomoreinput && num == 0));
if (this._z.AvailableBytesOut > 0)
{
if (num != 0 || this._z.AvailableBytesIn != 0)
{
}
if (!this.nomoreinput)
{
}
}
int count1 = count - this._z.AvailableBytesOut;
if (this.crc != null)
{
this.crc.SlurpBlock(buffer, offset, count1);
}
return(count1);
}
public override void Write(byte[] buffer, int offset, int count)
{
if (this.crc != null)
this.crc.SlurpBlock(buffer, offset, count);
if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
this._streamMode = ZlibBaseStream.StreamMode.Writer;
else if (this._streamMode != ZlibBaseStream.StreamMode.Writer)
throw new ZlibException("Cannot Write after Reading.");
if (count == 0)
return;
this.z.InputBuffer = buffer;
this._z.NextIn = offset;
this._z.AvailableBytesIn = count;
bool flag;
do
{
this._z.OutputBuffer = this.workingBuffer;
this._z.NextOut = 0;
this._z.AvailableBytesOut = this._workingBuffer.Length;
int num = this._z.Inflate(this._flushMode);
if (num != 0 && num != 1)
throw new ZlibException("inflating: " + this._z.Message);
this._stream.Write(this._workingBuffer, 0, this._workingBuffer.Length - this._z.AvailableBytesOut);
flag = this._z.AvailableBytesIn == 0 && this._z.AvailableBytesOut != 0;
if (this._flavor == ZlibStreamFlavor.GZIP)
flag = this._z.AvailableBytesIn == 8 && this._z.AvailableBytesOut != 0;
}
while (!flag);
}
public override int Read(byte[] buffer, int offset, int count)
{
if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
{
if (!this._stream.CanRead)
throw new ZlibException("The stream is not readable.");
this._streamMode = ZlibBaseStream.StreamMode.Reader;
this.z.AvailableBytesIn = 0;
if (this._flavor == ZlibStreamFlavor.GZIP)
{
this._gzipHeaderByteCount = this._ReadAndValidateGzipHeader();
if (this._gzipHeaderByteCount == 0)
return 0;
}
}
if (this._streamMode != ZlibBaseStream.StreamMode.Reader)
throw new ZlibException("Cannot Read after Writing.");
if (count == 0)
return 0;
if (buffer == null)
throw new ArgumentNullException("buffer");
if (count < 0)
throw new ArgumentOutOfRangeException("count");
if (offset < buffer.GetLowerBound(0))
throw new ArgumentOutOfRangeException("offset");
if (offset + count > buffer.GetLength(0))
throw new ArgumentOutOfRangeException("count");
this._z.OutputBuffer = buffer;
this._z.NextOut = offset;
this._z.AvailableBytesOut = count;
this._z.InputBuffer = this.workingBuffer;
int num;
do
{
if (this._z.AvailableBytesIn == 0 && !this.nomoreinput)
{
this._z.NextIn = 0;
this._z.AvailableBytesIn = this._stream.Read(this._workingBuffer, 0, this._workingBuffer.Length);
if (this._z.AvailableBytesIn == 0)
this.nomoreinput = true;
}
num = this._z.Inflate(this._flushMode);
if (this.nomoreinput && num == -5)
return 0;
if (num != 0 && num != 1)
throw new ZlibException(string.Format("inflating: rc={0} msg={1}", (object)num, (object)this._z.Message));
}
while ((!this.nomoreinput && num != 1 || this._z.AvailableBytesOut != count) && (this._z.AvailableBytesOut > 0 && !this.nomoreinput && num == 0));
if (this._z.AvailableBytesOut > 0)
{
if (num != 0 || this._z.AvailableBytesIn != 0)
{}
if (!this.nomoreinput)
{}
}
int count1 = count - this._z.AvailableBytesOut;
if (this.crc != null)
this.crc.SlurpBlock(buffer, offset, count1);
return count1;
}
public override int Read(byte[] buffer, int offset, int count)
{
if (this._streamMode == ZlibBaseStream.StreamMode.Undefined)
{
if (!this._stream.CanRead)
{
throw new ZlibException("The stream is not readable.");
}
this._streamMode = ZlibBaseStream.StreamMode.Reader;
this.z.AvailableBytesIn = 0;
if (this._flavor == ZlibStreamFlavor.GZIP)
{
this._gzipHeaderByteCount = this._ReadAndValidateGzipHeader();
if (this._gzipHeaderByteCount == 0)
{
return(0);
}
}
}
if (this._streamMode != ZlibBaseStream.StreamMode.Reader)
{
throw new ZlibException("Cannot Read after Writing.");
}
if (count == 0)
{
return(0);
}
if (this.nomoreinput && this._wantCompress)
{
return(0);
}
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (count < 0)
{
throw new ArgumentOutOfRangeException("count");
}
if (offset < buffer.GetLowerBound(0))
{
throw new ArgumentOutOfRangeException("offset");
}
if (offset + count > buffer.GetLength(0))
{
throw new ArgumentOutOfRangeException("count");
}
this._z.OutputBuffer = buffer;
this._z.NextOut = offset;
this._z.AvailableBytesOut = count;
this._z.InputBuffer = this.workingBuffer;
int num;
while (true)
{
if (this._z.AvailableBytesIn == 0 && !this.nomoreinput)
{
this._z.NextIn = 0;
this._z.AvailableBytesIn = this._stream.Read(this._workingBuffer, 0, this._workingBuffer.Length);
if (this._z.AvailableBytesIn == 0)
{
this.nomoreinput = true;
}
}
num = ((!this._wantCompress) ? this._z.Inflate(this._flushMode) : this._z.Deflate(this._flushMode));
if (this.nomoreinput && num == -5)
{
break;
}
if (num != 0 && num != 1)
{
goto Block_20;
}
if ((this.nomoreinput || num == 1) && this._z.AvailableBytesOut == count)
{
goto Block_23;
}
if (this._z.AvailableBytesOut <= 0 || this.nomoreinput || num != 0)
{
goto IL_263;
}
}
return(0);
Block_20:
throw new ZlibException(string.Format("{0}flating: rc={1} msg={2}", (!this._wantCompress) ? "in" : "de", num, this._z.Message));
Block_23:
IL_263:
if (this._z.AvailableBytesOut > 0)
{
if (num != 0 || this._z.AvailableBytesIn == 0)
{
}
if (this.nomoreinput && this._wantCompress)
{
num = this._z.Deflate(FlushType.Finish);
if (num != 0 && num != 1)
{
throw new ZlibException(string.Format("Deflating: rc={0} msg={1}", num, this._z.Message));
}
}
}
num = count - this._z.AvailableBytesOut;
if (this.crc != null)
{
this.crc.SlurpBlock(buffer, offset, num);
}
return(num);
}
