#include <stdio.h>
#include <windows.h>
#include <fcntl.h>
#include "zlib.h"


/* wget http://zlib.net/zlib125.zip */
/* cd zlib-1.2.5/  */
/* make -f win32/Makefile.gcc */
/* cp -iv zlib1.dll /mingw/bin */
/* cp -iv zconf.h zlib.h /mingw/include */
/* cp -iv libz.a /mingw/lib */
/* cp -iv libzdll.a /mingw/lib/libz.dll.a */


typedef struct	ds_header
{
  char		m_ProductId[4];
  char		m_TankId[4];
  int		m_HeaderVersion;
  int		m_DirSetOffset;
  int		m_FileSetOffset;
  int		m_IndexSize;
  int		m_DataOffset;
  char		m_ProductVersion[12];
  char		m_MinimumVersion[12];
  int		m_Priority;
  int		m_Flags;
  char		m_CreatorId[4];
  GUID		m_GUID;
  int		m_IndexCRC32;
  int		m_DataCRC32;
  SYSTEMTIME	m_UtcBuildTime;
  WCHAR		m_CopyrightText[100];
  WCHAR		m_BuildText[100];
  WCHAR		m_TitleText[100];
  WCHAR		m_AuthorText[40];
  char		*m_DescriptionText;
}		ds_header;

typedef struct	DirSet
{
  int		m_Count;
  DWORD		*m_Offsets;
}		DirSet;

typedef struct	NString
{
  short		len;
  char		name[1];
}		NString;

typedef struct	DirEntry
{
  int		m_ParentOffset;
  int		m_ChildCount;
  FILETIME	m_FileTime;
  NString	m_Name;
}		DirEntry;

typedef struct	CompressedHeader
{
  DWORD		m_CompressedSize;
  DWORD		m_ChunkSize;
}		CompressedHeader;

typedef struct	ChunkHeader
{
  DWORD		m_UncompressedSize;
  DWORD		m_CompressedSize;
  DWORD		m_ExtraBytes;
  DWORD		m_Offset;
}		ChunkHeader;

typedef struct	FileSet
{

  int		m_Count;
  DWORD		m_Offsets[1];
}		FileSet;

typedef struct		FileEntry
{
  int			m_ParentOffset;
  int			m_Size;
  int			m_Offset;
  int			m_CRC32;
  FILETIME		m_FileTime;
  WORD			m_Format;
  WORD			m_Flags;
  NString		m_Name;
}			FileEntry;

#define                 align4(x) (((((x) - 1) >> 2) << 2) + 4)