Wrong Local header signature: 0x21726152

Hello,

i have encountered a bug when trying to decompress an archiv.

Heres my Code:

        public static bool Unzip(string file, string dir)
        {
            if (!Directory.Exists(dir))
                Directory.CreateDirectory(dir);

            ZipInputStream s = new ZipInputStream(File.OpenRead(file));

            ZipEntry theEntry;
            while ((theEntry = s.GetNextEntry()) != null)
            {
                string directoryName = Path.GetDirectoryName(theEntry.Name);

                string fileName = Path.GetFileName(theEntry.Name);

                if (directoryName != String.Empty)
                    Directory.CreateDirectory(dir + "\\" + directoryName);

                if (fileName != String.Empty)
                {
                    FileStream streamWriter = File.Create(dir + "\\" + theEntry.Name);

                    int size = 32768;
                    byte[ data = new byte[32768];
                    while (true)
                    {
                        size = s.Read(data, 0, data.Length);
                        if (size > 0)
                        {
                            streamWriter.Write(data, 0, size);
                        }
                        else
                        {
                            break;
                        }
                    }

                    streamWriter.Close();
                }
            }
            s.Close();
            return true;
        }

An Archiv that causes a creashes is very easy to create:

you need 2 directories with content, and add them to the same archiv.

"%ProgramFiles(X86)%\WinRar ar.exe" a Test.zip Server
"%ProgramFiles(X86)%\WinRar ar.exe" a Test.zip Desktop

i could upload an archiv that crashes - but the forum does not support uploads !?