Crisis.Ionic.Zlib.InflateManager.SetDictionary C# (CSharp) Method

        internal int SetDictionary(byte[] dictionary)
        {
            int index = 0;
            int length = dictionary.Length;
            if (mode != InflateManagerMode.DICT0)
                throw new ZlibException("Stream error.");

            if (Adler.Adler32(1, dictionary, 0, dictionary.Length) != _codec._Adler32)
            {
                return ZlibConstants.Z_DATA_ERROR;
            }

            _codec._Adler32 = Adler.Adler32(0, null, 0, 0);

            if (length >= (1 << wbits))
            {
                length = (1 << wbits) - 1;
                index = dictionary.Length - length;
            }
            blocks.SetDictionary(dictionary, index, length);
            mode = InflateManagerMode.BLOCKS;
            return ZlibConstants.Z_OK;
        }