/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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 ************************************************************************/

#include "macros.h"

#define	WININIT_FILENAME	"wininit.ini"
#define RENAME_SECTION		"rename"

IMPLEMENT_THUNK( kernel32, WINDOWS, BOOL, WINAPI, MoveFileExA, ( LPCSTR lpExistingFileNameA, LPCSTR lpNewFileNameA, DWORD dwFlags ) )
{
	BOOL	fSuccess = FALSE;	// assume failure

	// Windows 9x has a special mechanism to move files after reboot

	if ( dwFlags & MOVEFILE_DELAY_UNTIL_REBOOT )
	{
		CHAR	szExistingFileNameA[MAX_PATH];
		CHAR	szNewFileNameA[MAX_PATH] = "NUL";

		// Path names in WININIT.INI must be in short path name form

		if ( 
			GetShortPathNameA( lpExistingFileNameA, szExistingFileNameA, MAX_PATH ) &&
			(!lpNewFileNameA || GetShortPathNameA( lpNewFileNameA, szNewFileNameA, MAX_PATH ))
			)
		{
			CHAR	szBuffer[32767];	// The buffer size must not exceed 32K
			DWORD	dwBufLen = GetPrivateProfileSectionA( RENAME_SECTION, szBuffer, elementsof(szBuffer), WININIT_FILENAME );

			CHAR	szRename[MAX_PATH];	// This is enough for at most to times 67 chracters
			strcpy( szRename, szNewFileNameA );
			strcat( szRename, "=" );
			strcat( szRename, szExistingFileNameA );
			size_t	lnRename = strlen(szRename);

			if ( dwBufLen + lnRename + 2 <= elementsof(szBuffer) )
			{
				CopyMemory( &szBuffer[dwBufLen], szRename, lnRename );
				szBuffer[dwBufLen + lnRename ] = 0;
				szBuffer[dwBufLen + lnRename + 1 ] = 0;

				fSuccess = WritePrivateProfileSectionA( RENAME_SECTION, szBuffer, WININIT_FILENAME );
			}
			else
				SetLastError( ERROR_BUFFER_OVERFLOW );
		}
	}
	else
	{

		fSuccess = MoveFileA( lpExistingFileNameA, lpNewFileNameA );

		if ( !fSuccess && 0 != (dwFlags & (MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING)) )
		{
			BOOL	bFailIfExist = 0 == (dwFlags & MOVEFILE_REPLACE_EXISTING);

			fSuccess = CopyFileA( lpExistingFileNameA, lpNewFileNameA, bFailIfExist );

			// In case of successfull copy do not return FALSE if delete fails.
			// Error detection is done by GetLastError()

			if ( fSuccess )
			{
				SetLastError( NO_ERROR );
				DeleteFileA( lpExistingFileNameA );
			}
		}

	}

	return fSuccess;
}