System.IO.BinaryReader.ReadBytes C# (CSharp) Method

        public virtual byte[] ReadBytes(int count)
        {
            if (count < 0)
            {
                throw new ArgumentOutOfRangeException(nameof(count), SR.ArgumentOutOfRange_NeedNonNegNum);
            }
            if (_stream == null)
            {
                throw new ObjectDisposedException(null, SR.ObjectDisposed_FileClosed);
            }

            if (count == 0)
            {
                return Array.Empty<byte>();
            }

            byte[] result = new byte[count];
            int numRead = 0;
            do
            {
                int n = _stream.Read(result, numRead, count);
                if (n == 0)
                {
                    break;
                }

                numRead += n;
                count -= n;
            } while (count > 0);

            if (numRead != result.Length)
            {
                // Trim array.  This should happen on EOF & possibly net streams.
                byte[] copy = new byte[numRead];
                Buffer.BlockCopy(result, 0, copy, 0, numRead);
                result = copy;
            }

            return result;
        }

        internal override void Read(BinaryReader reader)
        {
            Version = reader.ReadUInt16();
            VersionNeededToExtract = reader.ReadUInt16();
            Flags = (HeaderFlags) reader.ReadUInt16();
            CompressionMethod = (ZipCompressionMethod) reader.ReadUInt16();
            LastModifiedTime = reader.ReadUInt16();
            LastModifiedDate = reader.ReadUInt16();
            Crc = reader.ReadUInt32();
            CompressedSize = reader.ReadUInt32();
            UncompressedSize = reader.ReadUInt32();
            ushort nameLength = reader.ReadUInt16();
            ushort extraLength = reader.ReadUInt16();
            ushort commentLength = reader.ReadUInt16();
            DiskNumberStart = reader.ReadUInt16();
            InternalFileAttributes = reader.ReadUInt16();
            ExternalFileAttributes = reader.ReadUInt32();
            RelativeOffsetOfEntryHeader = reader.ReadUInt32();

            byte[] name = reader.ReadBytes(nameLength);
            Name = DecodeString(name);
            byte[] extra = reader.ReadBytes(extraLength);
            byte[] comment = reader.ReadBytes(commentLength);
            Comment = DecodeString(comment);
            LoadExtra(extra);
        }