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/*
Miranda Database Tool
Copyright 2000-2011 Miranda ICQ/IM project, 
all portions of this codebase are copyrighted to the people 
listed in contributors.txt.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/


#include <tchar.h>

#include <windows.h>
#include <stdio.h>
#include <stddef.h>
#include <io.h>
#include <stdarg.h>
#include <process.h>
#include <direct.h>
#include <malloc.h>
#include <commctrl.h>
#include <time.h>

#include <m_database.h>
#include <m_db_int.h>

#include "resource.h"

#define WinVerMajor()      LOBYTE(LOWORD(GetVersion()))
#define IsWinVerXPPlus()   (WinVerMajor()>=5 && LOWORD(GetVersion())!=5)

#define WZM_GOTOPAGE   (WM_USER+1)
#define WZN_PAGECHANGING  (WM_USER+1221)
#define WZN_CANCELCLICKED (WM_USER+1222)

struct DbToolOptions {
	TCHAR filename[MAX_PATH];
	TCHAR workingFilename[MAX_PATH];
	TCHAR outputFilename[MAX_PATH];
	TCHAR backupFilename[MAX_PATH];
	HANDLE hFile;
	HANDLE hOutFile;
	HANDLE hMap;
	BYTE *pFile;
	DWORD error;
	int bCheckOnly, bBackup, bAggressive;
	int bEraseHistory, bMarkRead, bConvertUtf;
};

extern HINSTANCE hInst;
extern DbToolOptions opts;
extern HANDLE hEventRun, hEventAbort;
extern int errorCount;

int DoMyControlProcessing(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam, INT_PTR *bReturn);

INT_PTR CALLBACK SelectDbDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK CleaningDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK ProgressDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK FileAccessDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK WizardDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK FinishedDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK WelcomeDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK OpenErrorDlgProc(HWND hdlg, UINT message, WPARAM wParam, LPARAM lParam);

struct DBSignature {
  char name[15];
  BYTE eof;
};
static struct DBSignature dbSignature = {"Miranda ICQ DB", 0x1A};

#define SIZEOF(X) (sizeof(X)/sizeof(X[0]))

#define STATUS_MESSAGE    0
#define STATUS_WARNING    1
#define STATUS_ERROR      2
#define STATUS_FATAL      3
#define STATUS_SUCCESS    4
#define STATUS_CLASSMASK  0x0f
void AddToStatus(int flags, const TCHAR* fmt, ...);
void SetProgressBar(int perThou);

int PeekSegment(DWORD ofs, PVOID buf, int cbBytes);
int ReadSegment(DWORD ofs, PVOID buf, int cbBytes);
#define WSOFS_END   0xFFFFFFFF
#define WS_ERROR    0xFFFFFFFF
DWORD WriteSegment(DWORD ofs, PVOID buf, int cbBytes);
int ReadWrittenSegment(DWORD ofs, PVOID buf, int cbBytes);
int SignatureValid(DWORD ofs, DWORD signature);
DWORD ConvertModuleNameOfs(DWORD ofsOld);
void FreeModuleChain();

bool is_utf8_string(const char* str);