/// <summary>
/// Puts the next header in a predefined order
/// </summary>
/// <param name="entry">
/// the ZipEntry which contains all the information
/// </param>
private void PutNextHeader(ZipEntry entry)
{
WriteLeInt32(entry.Size);
//REcord the offset to write proper CRC and compressed size
offset = baseStream.Position;
WriteLeInt32(entry.CompressedSize);
WriteBytes(entry.GetCrc());
WriteLeInt32(entry.DosTime);
WriteLeInt16(entry.NameLength);
byte[] names = ConvertToArray(entry.Name);
baseStream.Write(names, 0, names.Length);
}
/// <summary>
/// Writes the uncompressed data into the filename in the
/// entry. It instantiates a memory stream which will serve
/// as a temp store and decompresses it using Gzip Stream or
/// Deflate stream
/// </summary>
private void WriteUncompressedFile(ZipEntry entry, string completePath)
{
MemoryStream ms = new MemoryStream();
try
{
byte[] b = new byte[entry.CompressedSize];
baseStream.Read(b, 0, (int)entry.CompressedSize);
if (CheckCRC(entry.GetCrc(), b))
ms.Write(b, 0, b.Length);
ms.Seek(0, SeekOrigin.Begin);
if (method == ZipConstants.DEFLATE)
zipStream = new DeflateStream(ms,
CompressionMode.Decompress, false);
else if (method == ZipConstants.GZIP)
zipStream = new GZipStream(ms, CompressionMode.Decompress,
false);
int index = entry.Name.LastIndexOf(ZipConstants.BackSlash);
string name = completePath + entry.Name.Substring(index + 1);
FileStream rewrite = new FileStream(name, FileMode.Create);
b = new byte[entry.Size];
zipStream.Read(b, 0, (int)entry.Size);
rewrite.Write(b, 0, (int)entry.Size);
rewrite.Close();
}
finally
{
zipStream.Close();
ms.Close();
}
}