source: trunk/src/shell32/shlfileop.c

/*
 * SHFileOperation
 *
 * Copyright 2000 Juergen Schmied
 * Copyright 2002 Andriy Palamarchuk
 * Copyright 2002-2003 Dietrich Teickner (from Odin)
 * Copyright 2002-2003 Rolf Kalbermatter
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * !!! shlfileop.c is shared source between wine and odin, do not remove
 * #ifdef __WIN32OS2__ .. lines
 */

#include "config.h"
#include "wine/port.h"

#include <stdarg.h>
#include <string.h>
#include <ctype.h>

#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "shellapi.h"
#include "wingdi.h"
#include "winuser.h"
#include "shlobj.h"
#include "shresdef.h"
#define NO_SHLWAPI_STREAM
#include "shlwapi.h"
#include "shell32_main.h"
#include "undocshell.h"
#include "wine/unicode.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(shell);

#define IsAttribFile(x) (!((x) & FILE_ATTRIBUTE_DIRECTORY))
#define IsAttrib(x,y)   ((INVALID_FILE_ATTRIBUTES != (x)) && ((x) & (y)))
#define IsAttribDir(x)  IsAttrib(x,FILE_ATTRIBUTE_DIRECTORY)

#define IsDotDir(x)     ((x[0] == '.') && ((x[1] == 0) || ((x[1] == '.') && (x[2] == 0))))

#define FO_MASK         0xFF
#define FO_LevelShift   8
#define HIGH_ADR (LPWSTR)0xffffffff

#define FOI_NeverOverwrite 2

CHAR aWildcardFile[] = {'*',0};
WCHAR wWildcardChars[] = {'?','*',0};
#define wWildcardFile &wWildcardChars[1]
WCHAR wBackslash[] = {'\\',0};
enum { none = 0, w95, w95b, nt351, nt40, w98, w98se, wMe, w2k, wXp};
static int WOsVers = none; /* for versionsdepended conditions */
static int retCodeIsInvalid = 0x75; /* w95?,w98se, nt <= 4? */
static LPCSTR cFO_String [] = {"FO_????","FO_MOVE","FO_COPY","FO_DELETE","FO_RENAME"};

static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec);
static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec);
static DWORD SHNotifyRemoveDirectoryA(LPCSTR path);
static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path);
static DWORD SHNotifyDeleteFileA(LPCSTR path);
static DWORD SHNotifyDeleteFileW(LPCWSTR path);
static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest);
static DWORD SHNotifyCopyFileW(LPCWSTR, LPCWSTR, BOOL);

typedef struct
{
        UINT caption_resource_id, text_resource_id;
} SHELL_ConfirmIDstruc;

static BOOL SHELL_ConfirmIDs(int nKindOfDialog, SHELL_ConfirmIDstruc *ids)
{
        switch (nKindOfDialog) {
          case ASK_DELETE_FILE:
            ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
            ids->text_resource_id  = IDS_DELETEITEM_TEXT;
            return TRUE;
          case ASK_DELETE_FOLDER:
            ids->caption_resource_id  = IDS_DELETEFOLDER_CAPTION;
            ids->text_resource_id  = IDS_DELETEITEM_TEXT;
            return TRUE;
          case ASK_DELETE_MULTIPLE_ITEM:
            ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
            ids->text_resource_id  = IDS_DELETEMULTIPLE_TEXT;
            return TRUE;
          case ASK_OVERWRITE_FILE:
            ids->caption_resource_id  = IDS_OVERWRITEFILE_CAPTION;
            ids->text_resource_id  = IDS_OVERWRITEFILE_TEXT;
            return TRUE;
          default:
            FIXME(" Unhandled nKindOfDialog %d stub\n", nKindOfDialog);
        }
        return FALSE;
}

BOOL SHELL_ConfirmDialog(int nKindOfDialog, LPCSTR szDir)
{
        CHAR szCaption[255], szText[255], szBuffer[MAX_PATH + 256];
        SHELL_ConfirmIDstruc ids;

        if (!SHELL_ConfirmIDs(nKindOfDialog, &ids))
          return FALSE;

        LoadStringA(shell32_hInstance, ids.caption_resource_id, szCaption, sizeof(szCaption));
        LoadStringA(shell32_hInstance, ids.text_resource_id, szText, sizeof(szText));

        FormatMessageA(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ARGUMENT_ARRAY,
                       szText, 0, 0, szBuffer, sizeof(szBuffer), (LPDWORD)&szDir);

        return (IDOK == MessageBoxA(GetActiveWindow(), szBuffer, szCaption, MB_OKCANCEL | MB_ICONEXCLAMATION));
}

BOOL SHELL_ConfirmDialogW(int nKindOfDialog, LPCWSTR szDir)
{
        WCHAR szCaption[255], szText[255], szBuffer[MAX_PATH + 256];
        SHELL_ConfirmIDstruc ids;

        if (!SHELL_ConfirmIDs(nKindOfDialog, &ids))
          return FALSE;

        LoadStringW(shell32_hInstance, ids.caption_resource_id, szCaption, sizeof(szCaption));
        LoadStringW(shell32_hInstance, ids.text_resource_id, szText, sizeof(szText));

        FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ARGUMENT_ARRAY,
                       szText, 0, 0, szBuffer, sizeof(szBuffer), (LPDWORD)&szDir);

        return (IDOK == MessageBoxW(GetActiveWindow(), szBuffer, szCaption, MB_OKCANCEL | MB_ICONEXCLAMATION));
}

/**************************************************************************
 * SHELL_DeleteDirectoryA()  [internal]
 *
 * like rm -r
 */
BOOL SHELL_DeleteDirectoryA(LPCSTR pszDir, BOOL bShowUI)
{
        BOOL    ret = TRUE;
        HANDLE  hFind;
        WIN32_FIND_DATAA wfd;
        char    szTemp[MAX_PATH];

        /* Make sure the directory exists before eventually prompting the user */
        PathCombineA(szTemp, pszDir, aWildcardFile);
        hFind = FindFirstFileA(szTemp, &wfd);
        if (hFind == INVALID_HANDLE_VALUE)
          return FALSE;

        if (!bShowUI || SHELL_ConfirmDialog(ASK_DELETE_FOLDER, pszDir))
        {
          do
          {
            LPSTR lp = wfd.cAlternateFileName;
            if (!lp[0])
              lp = wfd.cFileName;
            if (IsDotDir(lp))
              continue;
            PathCombineA(szTemp, pszDir, lp);
            if (FILE_ATTRIBUTE_DIRECTORY & wfd.dwFileAttributes)
              ret = SHELL_DeleteDirectoryA(szTemp, FALSE);
            else
              ret = (SHNotifyDeleteFileA(szTemp) == ERROR_SUCCESS);
          } while (ret && FindNextFileA(hFind, &wfd));
        }
        FindClose(hFind);
        if (ret)
          ret = (SHNotifyRemoveDirectoryA(pszDir) == ERROR_SUCCESS);
        return ret;
}

BOOL SHELL_DeleteDirectoryW(LPCWSTR pszDir, BOOL bShowUI)
{
        BOOL    ret = TRUE;
        HANDLE  hFind;
        WIN32_FIND_DATAW wfd;
        WCHAR   szTemp[MAX_PATH];

        /* Make sure the directory exists before eventually prompting the user */
        PathCombineW(szTemp, pszDir, wWildcardFile);
        hFind = FindFirstFileW(szTemp, &wfd);
        if (hFind == INVALID_HANDLE_VALUE)
          return FALSE;

        if (!bShowUI || SHELL_ConfirmDialogW(ASK_DELETE_FOLDER, pszDir))

        {
          do
          {
            LPWSTR lp = wfd.cAlternateFileName;
            if (!lp[0])
              lp = wfd.cFileName;
            if (IsDotDir(lp))
              continue;
            PathCombineW(szTemp, pszDir, lp);
            if (FILE_ATTRIBUTE_DIRECTORY & wfd.dwFileAttributes)
              ret = SHELL_DeleteDirectoryW(szTemp, FALSE);
            else
              ret = (SHNotifyDeleteFileW(szTemp) == ERROR_SUCCESS);
          } while (ret && FindNextFileW(hFind, &wfd));
        }
        FindClose(hFind);
        if (ret)
          ret = (SHNotifyRemoveDirectoryW(pszDir) == ERROR_SUCCESS);
        return ret;
}

/**************************************************************************
 *  SHELL_DeleteFileA()      [internal]
 */
BOOL SHELL_DeleteFileA(LPCSTR pszFile, BOOL bShowUI)
{
        if (bShowUI && !SHELL_ConfirmDialog(ASK_DELETE_FILE, pszFile))
          return FALSE;

        return (SHNotifyDeleteFileA(pszFile) == ERROR_SUCCESS);
}

BOOL SHELL_DeleteFileW(LPCWSTR pszFile, BOOL bShowUI)
{
        if (bShowUI && !SHELL_ConfirmDialogW(ASK_DELETE_FILE, pszFile))
          return FALSE;

        return (SHNotifyDeleteFileW(pszFile) == ERROR_SUCCESS);
}

/**************************************************************************
 * Win32CreateDirectory      [SHELL32.93]
 *
 * Creates a directory. Also triggers a change notify if one exists.
 *
 * PARAMS
 *  path       [I]   path to directory to create
 *
 * RETURNS
 *  TRUE if successful, FALSE otherwise
 *
 * NOTES:
 *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 *  This is Unicode on NT/2000
 */
static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec)
{
        WCHAR wPath[MAX_PATH];
        TRACE("(%s, %p)\n", debugstr_a(path), sec);

        MultiByteToWideChar(CP_ACP, 0, path, -1, wPath, MAX_PATH);
        return SHNotifyCreateDirectoryW(wPath, sec);
}

static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
{
        TRACE("(%s, %p)\n", debugstr_w(path), sec);

        if (StrPBrkW(path, wWildcardChars))
        {
        /* FIXME: This test is necessary since our CreateDirectory implementation
           does create directories with wildcard chars without objection. Once this
           is fixed, this can go away. */
          SetLastError(ERROR_INVALID_NAME);
          if (w98se >= WOsVers) /* wMe ? */
            return ERROR_FILE_NOT_FOUND; /* w98se */
          return ERROR_INVALID_NAME; /* w2k */
        }

        if (CreateDirectoryW(path, sec))
        {
          SHChangeNotify(SHCNE_MKDIR, SHCNF_PATHW, path, NULL);
          return ERROR_SUCCESS;
        }
        return GetLastError();
}

BOOL WINAPI Win32CreateDirectoryAW(LPCVOID path, LPSECURITY_ATTRIBUTES sec)
{
        if (SHELL_OsIsUnicode())
          return (SHNotifyCreateDirectoryW(path, sec) == ERROR_SUCCESS);
        return (SHNotifyCreateDirectoryA(path, sec) == ERROR_SUCCESS);
}

/************************************************************************
 * Win32RemoveDirectory      [SHELL32.94]
 *
 * Deletes a directory. Also triggers a change notify if one exists.
 *
 * PARAMS
 *  path       [I]   path to directory to delete
 *
 * RETURNS
 *  ERROR_SUCCESS if successful
 *
 * NOTES:
 *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 *  This is Unicode on NT/2000
 */

static DWORD SHNotifyRemoveDirectoryA(LPCSTR path)
{
        WCHAR wPath[MAX_PATH];
        TRACE("(%s)\n", debugstr_a(path));

        MultiByteToWideChar(CP_ACP, 0, path, -1, wPath, MAX_PATH);
        return SHNotifyRemoveDirectoryW(wPath);
}

/***********************************************************************/

static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path)
{
        BOOL ret;
        TRACE("(%s)\n", debugstr_w(path));

        ret = RemoveDirectoryW(path);
        if (!ret)
        {
          /* Directory may be write protected */
          DWORD dwAttr = GetFileAttributesW(path);
          if (IsAttrib(dwAttr,FILE_ATTRIBUTE_READONLY))
            if (SetFileAttributesW(path, dwAttr & ~FILE_ATTRIBUTE_READONLY))
              ret = RemoveDirectoryW(path);
        }
        if (ret)
        {
          SHChangeNotify(SHCNE_RMDIR, SHCNF_PATHW, path, NULL);
          return ERROR_SUCCESS;
        }
        return GetLastError();
}

/***********************************************************************/

BOOL WINAPI Win32RemoveDirectoryAW(LPCVOID path)
{
        if (SHELL_OsIsUnicode())
          return (SHNotifyRemoveDirectoryW(path) == ERROR_SUCCESS);
        return (SHNotifyRemoveDirectoryA(path) == ERROR_SUCCESS);
}

/************************************************************************
 * Win32DeleteFile           [SHELL32.164]
 *
 * Deletes a file. Also triggers a change notify if one exists.
 *
 * PARAMS
 *  path       [I]   path to file to delete
 *
 * RETURNS
 *  TRUE if successful, FALSE otherwise
 *
 * NOTES:
 *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 *  This is Unicode on NT/2000
 */

static DWORD SHNotifyDeleteFileA(LPCSTR path)
{
        WCHAR wPath[MAX_PATH];
        TRACE("(%s)\n", debugstr_a(path));

        MultiByteToWideChar(CP_ACP, 0, path, -1, wPath, MAX_PATH);
        return SHNotifyDeleteFileW(wPath);
}

/***********************************************************************/

static DWORD SHNotifyDeleteFileW(LPCWSTR path)
{
        BOOL ret;

        TRACE("(%s)\n", debugstr_w(path));

        ret = DeleteFileW(path);
        if (!ret)
        {
          /* File may be write protected or a system file */
          DWORD dwAttr = GetFileAttributesW(path);
          if (IsAttrib(dwAttr,FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
            if (SetFileAttributesW(path, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
              ret = DeleteFileW(path);
        }
        if (ret)
        {
          SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, path, NULL);
          return ERROR_SUCCESS;
        }
        return GetLastError();
}

/***********************************************************************/

DWORD WINAPI Win32DeleteFileAW(LPCVOID path)
{
        if (SHELL_OsIsUnicode())
          return (SHNotifyDeleteFileW(path) == ERROR_SUCCESS);
        return (SHNotifyDeleteFileA(path) == ERROR_SUCCESS);
}

/************************************************************************
 * SHNotifyMoveFile          [internal]
 *
 * Moves a file. Also triggers a change notify if one exists.
 *
 * PARAMS
 *  src        [I]   path to source file to move
 *  dest       [I]   path to target file to move to
 *
 * RETURNS
 *  NO_ERROR if successful, or an error code otherwise
 */
static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest)
{
        BOOL ret = FALSE;

        TRACE("(%s %s)\n", debugstr_w(src), debugstr_w(dest));

        if (StrPBrkW(dest, wWildcardChars))
        {
          /* FIXME: This test is currently necessary since our MoveFile
             implementation does create files with wildcard characters
             without objection!! Once this is fixed, this here can go away. */
          SetLastError(ERROR_INVALID_NAME);
          if (w98se >= WOsVers) /* wMe ? */
            return ERROR_FILE_NOT_FOUND; /* w98se */
          return ERROR_INVALID_NAME; /* w2k,wXp */
        }

        ret = MoveFileW(src, dest);
        if (!ret)
        {
          /* Source file may be write protected or a system file */
          DWORD dwAttr = GetFileAttributesW(src);
          if (IsAttrib(dwAttr,FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
            if (SetFileAttributesW(src, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
              ret = MoveFileW(src, dest);
        }
        if (ret)
        {
          SHChangeNotify(SHCNE_RENAMEITEM, SHCNF_PATHW, src, dest);
          return ERROR_SUCCESS;
        }
        return GetLastError();
}

/************************************************************************
 * SHNotifyCopyFile          [internal]
 *
 * Copies a file. Also triggers a change notify if one exists.
 *
 * PARAMS
 *  src        [I]   path to source file to move
 *  dest       [I]   path to target file to move to
 *  b_nOverWrt [I]   if TRUE, the target file will not be overwritten, if a
 *                   file with this name already exists
 *
 * RETURNS
 *  NO_ERROR if successful, or an error code otherwise
 */
static DWORD SHNotifyCopyFileW(LPCWSTR src, LPCWSTR dest, BOOL b_nOverWrt)
{
        BOOL ret;

        TRACE("(%s %s %s)\n", debugstr_w(src), debugstr_w(dest), b_nOverWrt ? "OverWriteIfExists" : "");

        ret = CopyFileW(src, dest, b_nOverWrt);
        if (ret)
        {
          SHChangeNotify(SHCNE_CREATE, SHCNF_PATHW, dest, NULL);
          return ERROR_SUCCESS;
        }
        return GetLastError();
}


/*************************************************************************
 * SHCreateDirectory         [SHELL32.165]
 *
 * Create a directory at the specified location
 *
 * PARAMS
 *  hWnd       [I]
 *  path       [I]   path of directory to create
 *
 * RETURNS
 *  ERRROR_SUCCESS or one of the following values:
 *  ERROR_BAD_PATHNAME if the path is relative
 *  ERROR_INVLID_NAME if the path contains invalid chars
 *  ERROR_ALREADY_EXISTS when the directory already exists
 *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 *
 * NOTES
 *  exported by ordinal
 *  Win9x exports ANSI
 *  WinNT/2000 exports Unicode
 */
DWORD WINAPI SHCreateDirectory(HWND hWnd, LPCVOID path)
{
        if (SHELL_OsIsUnicode())
          return SHCreateDirectoryExW(hWnd, path, NULL);
        return SHCreateDirectoryExA(hWnd, path, NULL);
}

/*************************************************************************
 * SHCreateDirectoryExA      [SHELL32.@]
 *
 * Create a directory at the specified location
 *
 * PARAMS
 *  hWnd       [I]
 *  path       [I]   path of directory to create
 *  sec        [I]   security attributes to use or NULL
 *
 * RETURNS
 *  ERRROR_SUCCESS or one of the following values:
 *  ERROR_BAD_PATHNAME or ERROR_PATH_NOT_FOUND if the path is relative
 *  ERROR_INVLID_NAME if the path contains invalid chars
 * ? ERROR_FILE_EXISTS when a file with that name exists
 *  ERROR_ALREADY_EXISTS when the directory already exists
 *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 */
DWORD WINAPI SHCreateDirectoryExA(HWND hWnd, LPCSTR path, LPSECURITY_ATTRIBUTES sec)
{
        WCHAR wPath[MAX_PATH];
        TRACE("(%p, %s, %p)\n",hWnd, debugstr_a(path), sec);

        MultiByteToWideChar(CP_ACP, 0, path, -1, wPath, MAX_PATH);
        return SHCreateDirectoryExW(hWnd, wPath, sec);
}

/*************************************************************************
 * SHCreateDirectoryExW      [SHELL32.@]
 */
DWORD WINAPI SHCreateDirectoryExW(HWND hWnd, LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
{
        DWORD ret = ERROR_BAD_PATHNAME;
        TRACE("(%p, %s, %p)\n",hWnd, debugstr_w(path), sec);

        if (PathIsRelativeW(path))
        {
          SetLastError(ret);
        }
        else
        {
          ret = SHNotifyCreateDirectoryW(path, sec);
          if (ret && ret != ERROR_FILE_EXISTS &&
              ret != ERROR_ALREADY_EXISTS &&
              ret != ERROR_FILENAME_EXCED_RANGE)
          {
          /* handling network file names?
            lstrcpynW(pathName, path, MAX_PATH);
            lpStr = PathAddBackslashW(pathName);*/
            FIXME("Semi-stub, creating path %s, failed with error %ld?\n", debugstr_w(path), ret);
          }
        }
        return ret;
}

/*************************************************************************
 * SHFreeNameMappings      [shell32.246]
 *
 * Free the mapping handle returned by SHFileoperation if FOF_WANTSMAPPINGHANDLE
 * was specified.
 *
 * PARAMS
 *  hNameMapping [I] handle to the name mappings used during renaming of files
 *
 */
void WINAPI SHFreeNameMappings(HANDLE hNameMapping)
{
        if (hNameMapping)
        {
          LPSHNAMEMAPPINGW lp;
          UINT i = 0;

          while (NULL != (lp = DSA_GetItemPtr((struct _DSA* const)hNameMapping, i++)))
          {
            SHFree(lp->pszOldPath);
            SHFree(lp->pszNewPath);
          }
          DSA_Destroy((struct _DSA*)hNameMapping);
        }
}

static BOOL SetIfPointer(LPWSTR pToSlash, WCHAR x)
{
        if (pToSlash) *pToSlash = x;
        return (BOOL)pToSlash; 
}
/*************************************************************************
 * SHFindAttrW      [internal]
 *
 * Get the Attributes for a file or directory. The difference to GetAttributes()
 * is that this function will also work for paths containing wildcard characters
 * in its filename.

 * PARAMS
 *  path       [I]   path of directory or file to check
 *  fileOnly   [I]   TRUE if only files should be found
 *
 * RETURNS
 *  INVALID_FILE_ATTRIBUTES if the path does not exist, the actual attributes of
 *  the first file or directory found otherwise
 */
static DWORD SHFindAttrW(LPCWSTR pName, BOOL fileOnly)
{
        WIN32_FIND_DATAW wfd;
        BOOL b_FileMask = fileOnly && (NULL != StrPBrkW(pName, wWildcardChars));
        DWORD dwAttr = INVALID_FILE_ATTRIBUTES;
        HANDLE hFind = FindFirstFileW(pName, &wfd);

        TRACE("%s %d\n", debugstr_w(pName), fileOnly);
        if (INVALID_HANDLE_VALUE != hFind)
        {
          do
          {
            if (b_FileMask && IsAttribDir(wfd.dwFileAttributes))
               continue;
            dwAttr = wfd.dwFileAttributes;
            break;
          }
          while (FindNextFileW(hFind, &wfd));
          FindClose(hFind);
        }
        return dwAttr;
}

/*************************************************************************
 *
 * SHFileStrICmp HelperFunction for SHFileOperationW
 *
 */
static BOOL SHFileStrICmpW(LPWSTR p1, LPWSTR p2, LPWSTR p1End, LPWSTR p2End)
{
        WCHAR C1 = '\0';
        WCHAR C2 = '\0';
        int i_Temp = 0 - (toupperW(p1[0]) == toupperW(p2[0]));
        int i_len1 = lstrlenW(p1);
        int i_len2 = lstrlenW(p2);

        if (!i_Temp) return FALSE; /* driveletters are different */
        if (p1End && (&p1[i_len1] >= p1End) && ('\\' == p1End[0]))
        {
          C1 = p1End[0];
          p1End[0] = '\0';
          i_len1 = lstrlenW(p1);
        }
        if (p2End)
        {
          if ((&p2[i_len2] >= p2End) && ('\\' == p2End[0]))
          {
            C2 = p2End[0];
            if (C2)
              p2End[0] = '\0';
          }
        }
        else
        {
          if ((i_len1 <= i_len2) && ('\\' == p2[i_len1]))
          {
            C2 = p2[i_len1];
            if (C2)
              p2[i_len1] = '\0';
          }
        }
        i_len2 = lstrlenW(p2);
        if (i_len1 == i_len2)
          i_Temp = lstrcmpiW(p1,p2);
        if (C1)
          p1[i_len1] = C1;
        if (C2)
          p2[i_len2] = C2;
        return !(i_Temp);
}

/*************************************************************************
 *
 * SHFileStrCpyCat HelperFunction for SHFileOperationW
 *
 */
static LPWSTR SHFileStrCpyCatW(LPWSTR pTo, LPCWSTR pFrom, LPCWSTR pCatStr)
{
        LPWSTR pToFile = NULL;
        int  i_len;
        if (pTo)
        {
          if (pFrom)
            lstrcpyW(pTo, pFrom);
          if (pCatStr)
          {
            i_len = lstrlenW(pTo);
            if ((i_len) && ('\\' != pTo[--i_len]))
              i_len++;
            pTo[i_len] = '\\';
            if ('\\' == pCatStr[0])
              pCatStr++; \
            lstrcpyW(&pTo[i_len+1], pCatStr);
          }
          pToFile = StrRChrW(pTo,NULL,'\\');
          /* termination of the new string-group */
          pTo[(lstrlenW(pTo)) + 1] = '\0';
        }
        return pToFile;
}

/**************************************************************************
 *      SHELL_FileNamesMatch()
 *
 * Accepts two \0 delimited lists of the file names. Checks whether number of
 * files in both lists is the same, and checks also if source-name exists.
 */
static BOOL SHELL_FileNamesMatch(LPCWSTR pszFiles1, LPCWSTR pszFiles2, BOOL bOnlySrc)
{
        LPWSTR pszTemp;

        TRACE("%s %s %d\n", debugstr_w(pszFiles1), debugstr_w(pszFiles2), bOnlySrc);

        while ((pszFiles1[0] != '\0') &&
               (bOnlySrc || (pszFiles2[0] != '\0')))
        {
          pszTemp = StrChrW(pszFiles1,'\\');
          /* root (without mask/name) is also not allowed as source, tested in W98 */
          if (!pszTemp || !pszTemp[1])
            return FALSE;
          pszTemp = StrPBrkW(pszFiles1, wWildcardChars);
          if (pszTemp)
          {
            WCHAR szMask [MAX_PATH];
            pszTemp = StrRChrW(pszFiles1, pszTemp, '\\');
            if (!pszTemp)
              return FALSE;
            lstrcpynW(szMask, pszFiles1, (pszTemp - pszFiles1) + 1);
            /* we will check the root of the mask as valid dir */
            if (!IsAttribDir(GetFileAttributesW(&szMask[0])))
              return FALSE;
          }
          else
          {
            if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW(pszFiles1))
              return FALSE;
          }
          pszFiles1 += lstrlenW(pszFiles1) + 1;
          if (!bOnlySrc)
            pszFiles2 += lstrlenW(pszFiles2) + 1;
        }
        return ((pszFiles1[0] == '\0') && (bOnlySrc || (pszFiles2[0] == '\0')));
}

/*************************************************************************
 * SHFileOperationCheck
 */
static DWORD SHFileOperationCheck(LPSHFILEOPSTRUCTW lpFileOp, LPCSTR* cFO_Name)
{
        FILEOP_FLAGS OFl = (FILEOP_FLAGS)lpFileOp->fFlags;
        long retCode = NO_ERROR;
        long FuncSwitch = (lpFileOp->wFunc & FO_MASK);

        /*  default no error */
        if (none == WOsVers) {
          OSVERSIONINFOA info;
          info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
          GetVersionExA(&info);
          WOsVers = wMe; /* <= wMe, tested with w98se and partialy nt4,w95 */
          /* this cases must be more different */
          if ((VER_PLATFORM_WIN32_WINDOWS == info.dwPlatformId) &&
              (4 == info.dwMajorVersion) && (10 == info.dwMinorVersion)) {
            WOsVers = w98se;
            retCodeIsInvalid = 0x75; /* <= W98se, what is with wMe? */
          }
          if (VER_PLATFORM_WIN32_NT == info.dwPlatformId)
          {
            if (4 > info.dwMajorVersion)
            {
              WOsVers = nt351;
              retCodeIsInvalid =  0x75;
            }
            if (4 == info.dwMajorVersion)
            {
              WOsVers = nt40;
              retCodeIsInvalid =  0x75;
            }
            if (5 == info.dwMajorVersion)
            {
              WOsVers = w2k;
              if (0 < info.dwMinorVersion)
                WOsVers = wXp; /* Longhorn also ? */
              retCodeIsInvalid = 0x4c7; /* >= W2K */
            }
            if (5 < info.dwMajorVersion)
            {
              WOsVers = wXp; /* Longhorn ? */
              retCodeIsInvalid = 0x4c7; /* >= W2K */
            }
          }
          TRACE("WOsVers:%d Id: %ld Ver: %ld.%ld.%ld, %s\n\n", WOsVers, info.dwPlatformId,
                 info.dwMajorVersion, info.dwMinorVersion, info.dwBuildNumber, info.szCSDVersion);
        }
        if ((FuncSwitch < FO_MOVE) || (FuncSwitch > FO_RENAME))
        {
          FuncSwitch = 0;
          retCode = ERROR_INVALID_PARAMETER;
        }
        cFO_Name[0] = cFO_String [FuncSwitch];

        if (!(~FO_MASK & lpFileOp->wFunc)) /* ? Level == 0 */
        {
          lpFileOp->hNameMappings = 0;
          lpFileOp->fAnyOperationsAborted = FALSE;
          TRACE("%s: flags (0x%04x) : %s%s%s%s%s%s%s%s%s%s%s%s%s \n",cFO_Name[0], OFl,
                      OFl & FOF_MULTIDESTFILES ? "FOF_MULTIDESTFILES " : "",
                      OFl & FOF_CONFIRMMOUSE ? "FOF_CONFIRMMOUSE " : "",
                      OFl & FOF_SILENT ? "FOF_SILENT " : "",
                      OFl & FOF_RENAMEONCOLLISION ? "FOF_RENAMEONCOLLISION " : "",
                      OFl & FOF_NOCONFIRMATION ? "FOF_NOCONFIRMATION " : "",
                      OFl & FOF_WANTMAPPINGHANDLE ? "FOF_WANTMAPPINGHANDLE " : "",
                      OFl & FOF_ALLOWUNDO ? "FOF_ALLOWUNDO " : "",
                      OFl & FOF_FILESONLY ? "FOF_FILESONLY " : "",
                      OFl & FOF_SIMPLEPROGRESS ? "FOF_SIMPLEPROGRESS " : "",
                      OFl & FOF_NOCONFIRMMKDIR ? "FOF_NOCONFIRMMKDIR " : "",
                      OFl & FOF_NOERRORUI ? "FOF_NOERRORUI " : "",
                      OFl & FOF_NOCOPYSECURITYATTRIBS ? "FOF_NOCOPYSECURITYATTRIBS" : "",
                      OFl & 0xf000 ? "MORE-UNKNOWN-Flags" : "");
          OFl &= (~(FOF_FILESONLY | FOF_WANTMAPPINGHANDLE | FOF_NOCONFIRMATION |
                    FOF_RENAMEONCOLLISION | FOF_MULTIDESTFILES));  /* implemented */
          OFl ^= (FOF_SILENT | FOF_NOCONFIRMMKDIR | FOF_NOERRORUI | FOF_NOCOPYSECURITYATTRIBS); /* ignored, if one */
          OFl &= (~FOF_SIMPLEPROGRESS);                      /* ignored, only with FOF_SILENT */
          if (OFl)
          {
            if (OFl & (~(FOF_CONFIRMMOUSE | FOF_SILENT |
                         FOF_NOCONFIRMMKDIR | FOF_NOERRORUI | FOF_NOCOPYSECURITYATTRIBS)))
            {
                    TRACE("%s lpFileOp->fFlags=0x%x not implemented, Aborted=TRUE, stub\n", cFO_Name[0], OFl);
              retCode = ERROR_INVALID_PARAMETER;
            }
            else
            {
                    TRACE("%s lpFileOp->fFlags=0x%x not fully implemented, stub\n", cFO_Name[0], OFl);
            } /* endif */
          } /* endif */
        }
        return retCode;
}

/*************************************************************************
 *
 * SHCreateMappingElement internal HelperFunction for SHRenameOnCollision
 *
 * Old/New MappingNameElement
 */
static LPWSTR SHCreateMappingElement(PINT size, LPWSTR pName)
{
        LPWSTR pMapName = NULL;
        CHAR TempPath [MAX_PATH];
        int isize = lstrlenW(pName)+1;
        int oldsize = isize;
        if ((w98se >= WOsVers) && (nt40 != WOsVers) && (nt351 != WOsVers))
        {
          isize = WideCharToMultiByte( CP_ACP, 0, pName, oldsize, TempPath, MAX_PATH, NULL, NULL );
          if (0 < isize)
                pName = (LPWSTR)&TempPath[0];
        }
        else
        {
          oldsize = oldsize*sizeof(WCHAR);
        }
        pMapName = SHAlloc(oldsize);
        memcpy(pMapName,pName,oldsize);
        *size = isize-1;
        return pMapName;
}

/*************************************************************************
 *
 * SHRenameOnCollision internal HelperFunction for SHFileOperationW
 *
 * Creates new Names and Checks for existance.
 *
 * w98 has problems with some remames on collision, if the original target-name,
 * or the root of the target-name is equal any former orginal target-name,
 * and if the root-dir of the target differs from the partiell root-dir of the source.
 * If we have different target-names or has all target the same root of hear source,
 * we have the problem not, root of target can be shorter as the full root of source. 
 * I think, that is a mapping-problem.
 * Move within the same or shorter root can made from fo_rename,
 * that works every in w98, only move/copy in other roots has this problem,
 * this must be done in fo_move/fo_copy, there we have the problem.
 * we ignore this problem, it is solved in w2k. 
 */
static WCHAR wStrFormat[] = {' ','(','%','d',')',' ',0};

static DWORD SHRenameOnCollision(LPWSTR pTempTo, LPWSTR pToFile, LPCWSTR pFromFile, LPSHFILEOPSTRUCTW lpFileOp)
{
/* todo ERROR_FILENAME_EXCED_RANGE ?? */
        static WCHAR wCopy_x_of[40] = {0};
        LPWSTR pszTemp = wStrFormat + 5;
        DWORD ToAttr;
        WCHAR szNumber[16];
        WCHAR szOldToName [MAX_PATH];
        int number = 0;

        while (ToAttr = SHFindAttrW(pTempTo, FALSE),
               (INVALID_FILE_ATTRIBUTES != ToAttr) && (FOF_RENAMEONCOLLISION & lpFileOp->fFlags))
        {
          if (!number)
          {
            if (!*wCopy_x_of && !LoadStringW(shell32_hInstance, IDS_COPY_X_OF_TEXT, wCopy_x_of, sizeof(wCopy_x_of)-1))
              break; /* should never be */
            lstrcpyW(szOldToName, pTempTo);
          }
          number++;
          if (1 < number)
          {
            pszTemp = szNumber;
            wsprintfW(szNumber, wStrFormat, number);
          }
          wsprintfW(pToFile + 1,wCopy_x_of, pszTemp, pFromFile + 1);
          pToFile[lstrlenW(pToFile)+1] = 0;

        } /* endwhile */
        if (number)
        {
          SHNAMEMAPPINGW shm;
          shm.pszOldPath = SHCreateMappingElement(&shm.cchOldPath, szOldToName);
          shm.pszNewPath = SHCreateMappingElement(&shm.cchNewPath, pTempTo);
          if (!lpFileOp->hNameMappings)
            lpFileOp->hNameMappings = DSA_Create(sizeof(SHNAMEMAPPINGW),1);
          DSA_InsertItem (lpFileOp->hNameMappings, ((HDSA)lpFileOp->hNameMappings)->nItemCount, &shm);
        }
        return ToAttr;
}
/*************************************************************************
 *
 * SHFileOperationMove HelperFunction for SHFileOperationW
 *
 * Contains the common part of FO_MOVE/FO_RENAME.
 * It is not with recursive call solvable.
 * We have both tryed FO_RENAME contains not FO_MOVE and
 * also FO_RENAME does not contains FO_MOVE, only common Parts.
 */
static DWORD SHFileOperationMove(LPSHFILEOPSTRUCTW lpFileOp)
{
        WCHAR szToName [MAX_PATH + 4];
        LPCWSTR pTo = lpFileOp->pTo;
        int i_lenTo;
        if (NULL != StrPBrkW(pTo, wWildcardChars))
        {
          if (w98se >= WOsVers) /* wMe? */
            return ERROR_FILE_NOT_FOUND; /* w98se */
          return ERROR_INVALID_NAME; /* w2k */
        }

        /* FOF_NOCONFIRMATION, FOF_RENAMEONCOLLISION ? */
        i_lenTo = lstrlenW(pTo);
        if (i_lenTo && ('\\' == pTo[--i_lenTo]))
        {
          lstrcpynW(szToName, pTo, i_lenTo + 1);
          pTo = &szToName[0];
        }
        if (INVALID_FILE_ATTRIBUTES != SHFindAttrW(pTo, FALSE))
        {
          return ERROR_ALREADY_EXISTS;
        }
        /* we use SHNotifyMoveFile() instead of MoveFileW */
        return SHNotifyMoveFileW(lpFileOp->pFrom, pTo);
}
/*************************************************************************
 * SHFileOperationW          [SHELL32.@]
 *
 * See SHFileOperationA
 */
DWORD WINAPI SHFileOperationW(LPSHFILEOPSTRUCTW lpFileOp)
{
        SHFILEOPSTRUCTW nFileOp = lpFileOp ? *(lpFileOp):nFileOp;

        LPCWSTR pNextFrom = nFileOp.pFrom;
        LPCWSTR pNextTo = nFileOp.pTo;
        LPCWSTR pFrom = pNextFrom;
        LPCWSTR pTo = NULL;
        HANDLE hFind = INVALID_HANDLE_VALUE;
        WIN32_FIND_DATAW wfd;
        LPWSTR pTempFrom = NULL;
        LPWSTR pTempTo = NULL;
        LPWSTR pFromFile;
        LPWSTR pToFile = NULL;
        LPWSTR pToTailSlash; /* points also to ToMask, we know not what is this */
        LPWSTR lpFileName; /* temporary for pFromFile,pToFile,pToTailSlash */
        DWORD ToAttr;
        DWORD ToPathAttr;
        DWORD FromAttr;
        
        long FuncSwitch = (nFileOp.wFunc & FO_MASK);
        long level= nFileOp.wFunc>>FO_LevelShift;

        BOOL b_Multi = (0 != (nFileOp.fFlags & FOF_MULTIDESTFILES));

        BOOL b_MultiTo = (FO_DELETE != FuncSwitch);
        BOOL b_MultiPaired = (0 < level) /* FALSE only at Level 0 */;
        BOOL b_MultiFrom = FALSE;
        BOOL b_RenamOnColl = (0 != (nFileOp.fFlags & FOF_RENAMEONCOLLISION));
        BOOL b_NoConfirm = (0 != (nFileOp.fFlags & FOF_NOCONFIRMATION));
        BOOL b_ask_overwrite = (!b_NoConfirm && !b_RenamOnColl);
        BOOL b_not_overwrite = (!b_NoConfirm ||  b_RenamOnColl);
        BOOL b_DELETE = (FO_DELETE == FuncSwitch);
        BOOL b_SameRoot;
        BOOL b_SameRoot_MOVE;
        BOOL b_ToMask = FALSE;
        BOOL b_FromMask;
        BOOL b_FileMask;

        LPCSTR cFO_Name;
        long retCode = SHFileOperationCheck(&nFileOp,&cFO_Name);

        if (retCode)
        {
          if (('?' == cFO_Name[3]) && (/* wMe ?*/ w98se >= WOsVers))
            retCode = NO_ERROR; /* nt4.0, w95, w98se returns no error, w2k, wXp not */
          goto shfileop_exit; /* no valid FunctionCode */
        }

        /* establish when pTo is interpreted as the name of the destination file
         * or the directory where the Fromfile should be copied to.
         * This depends on:
         * (1) pTo points to the name of an existing directory;
         * (2) the flag FOF_MULTIDESTFILES is present;
         * (3) whether pFrom point to multiple filenames.
         *
         * Some experiments:
         *
         * destisdir               1 1 1 1 0 0 0 0
         * FOF_MULTIDESTFILES      1 1 0 0 1 1 0 0
         * multiple from filenames 1 0 1 0 1 0 1 0
         *                         ---------------
         * copy files to dir       1 0 1 1 0 0 1 0
         * create dir              0 0 0 0 0 0 1 0
         */
/*
 * FOF_MULTIDESTFILES, FOF_NOCONFIRMATION, FOF_FILESONLY  are implemented
 * FOF_CONFIRMMOUSE, FOF_SILENT, FOF_NOCONFIRMMKDIR,
 *       FOF_SIMPLEPROGRESS, FOF_NOCOPYSECURITYATTRIBS    are not implemented and ignored
 * FOF_RENAMEONCOLLISION                                  are implemented partially and breaks if file exist
 * FOF_ALLOWUNDO, FOF_WANTMAPPINGHANDLE                   are not implemented and breaks
 * if any other flag set, an error occurs
 */
          TRACE(" %s level=%ld nFileOp.fFlags=0x%x\n", cFO_Name, level, nFileOp.fFlags);

          if ((pNextFrom) && (!(b_MultiTo) || (pNextTo)))
          {
            nFileOp.pFrom = pTempFrom = SHAlloc(((1 + 2 * (b_MultiTo)) * MAX_PATH + 6) * sizeof(WCHAR));
            if (!pTempFrom)
            {
              retCode = ERROR_OUTOFMEMORY;
              SetLastError(retCode);
              goto shfileop_exit;
            }
            if (b_MultiTo)
              pTempTo = &pTempFrom[MAX_PATH + 4];
            nFileOp.pTo = pTempTo;
            if (0 == level)
            {
              if ((0 != (nFileOp.fFlags & FOF_NOCONFIRMATION)) && b_RenamOnColl)
                nFileOp.fAnyOperationsAborted |= FOI_NeverOverwrite;
            }
          }
          else
          {
            retCode = 0x402;      /* 1026 */ 
            goto shfileop_exit;
          }
          /* need break at error before change sourcepointer */
          while(!retCode && (pNextFrom[0]))
          {
            nFileOp.wFunc =  ((level + 1) << FO_LevelShift) + FuncSwitch;
            nFileOp.fFlags = lpFileOp->fFlags;

            if (b_MultiTo)
            {
              pTo = pNextTo;
              pNextTo = &pNextTo[lstrlenW(pTo)+1];
              b_MultiTo = (b_Multi && (0 != pNextTo[0]));
            }

            pFrom = pNextFrom;
            pNextFrom = &pNextFrom[lstrlenW(pNextFrom) + 1];
            if (!b_MultiFrom && !b_MultiTo)
              b_MultiFrom = (0 != pNextFrom[0]);

            pFromFile = SHFileStrCpyCatW(pTempFrom, pFrom, NULL);
            b_FromMask = (pFromFile && (NULL != StrPBrkW(&pFromFile[1], wWildcardChars)));

            if (pTo)
            {
              pToFile = SHFileStrCpyCatW(pTempTo, pTo, NULL);
              b_ToMask = (NULL != StrPBrkW(pTempTo, wWildcardChars));
            }

            if (FO_RENAME == FuncSwitch)
            {
              if (b_MultiTo || b_MultiFrom || (b_FromMask && !b_ToMask))
              {
                if (/* wMe? */ w2k <= WOsVers)
                  retCode = ERROR_GEN_FAILURE;  /* W2K ERROR_GEN_FAILURE, w95,W98,NT40 returns no error */
                goto shfileop_exit;
              }
            }

            if (!b_MultiPaired)
            {
              b_MultiPaired =
                SHELL_FileNamesMatch(lpFileOp->pFrom,
                      lpFileOp->pTo, (b_DELETE || !b_Multi || b_MultiFrom));
            } /* endif */
            if (!(b_MultiPaired) || !(pFromFile) || !(pFromFile[1]) || ((pTo) && !(pToFile)))
            {
              if (nt40 < WOsVers)
                retCode = 0x402;      /* 1026, nt40 returns 0 */
              goto shfileop_exit;
            }

            b_FileMask = b_FromMask && (FOF_FILESONLY & nFileOp.fFlags);
            if (!b_DELETE)
            {
              b_SameRoot = (toupperW(pTempFrom[0]) == toupperW(pTempTo[0]));
              b_SameRoot_MOVE = (b_SameRoot && (FO_MOVE == FuncSwitch));
            }
            FromAttr = SHFindAttrW(pTempFrom, b_FileMask);
            if (INVALID_FILE_ATTRIBUTES == FromAttr) 
            {
              retCode = GetLastError();
              if (ERROR_FILE_NOT_FOUND == retCode || ERROR_NO_MORE_FILES == retCode) /* only tested in wXp,w2k,w98 */
              {
                if (b_FromMask)
                {
                  retCode = NO_ERROR;
                }
                else
                  if (!b_SameRoot_MOVE && !b_DELETE)
                    goto shfileop_IsInvalid;
              }
              continue;
            } /* endif */

            if (b_DELETE)
            {
              hFind = FindFirstFileW(pFrom, &wfd);
              if (INVALID_HANDLE_VALUE == hFind)
              {
                goto shfileop_IsInvalid;
              }
              do
              {
                lpFileName = wfd.cAlternateFileName;
                if (!lpFileName[0])
                   lpFileName = wfd.cFileName;
                if (IsDotDir(lpFileName) ||
                    (b_FileMask && IsAttribDir(wfd.dwFileAttributes)))
                  continue;
                SHFileStrCpyCatW(&pFromFile[1], lpFileName, NULL);
                /* TODO: Check the SHELL_DeleteFileOrDirectoryW() function in shell32.dll */
                if (IsAttribFile(wfd.dwFileAttributes))
                {
                  if (SHNotifyDeleteFileW(pTempFrom))
                    retCode = 0x78; /* value unknown */
                }
                else
                {
                  if (!SHELL_DeleteDirectoryW(pTempFrom, (!(nFileOp.fFlags & FOF_NOCONFIRMATION))))
                    retCode = 0x79; /* value unknown */
                }
              } while (!retCode && FindNextFileW(hFind, &wfd));
              FindClose(hFind);
              continue;
            } /* FO_DELETE ends, pTo must be always valid from here */

            pToTailSlash = NULL;
            if ((pToFile) && !(pToFile[1]))
            {
              pToFile[0] = '\0';
              lpFileName = StrRChrW(pTempTo, NULL, '\\');
              if (lpFileName)
              {
                pToTailSlash = pToFile; 
                pToFile = lpFileName;
              }
            }
            ToPathAttr = ToAttr = GetFileAttributesW(pTempTo);
            if (!IsAttribDir(ToAttr) && SetIfPointer(pToFile, '\0'))
            {
              ToPathAttr = GetFileAttributesW(pTempTo);
              *pToFile = '\\';
            }
            SetIfPointer(pToTailSlash,'\\');

            /* FO_RENAME is not only a Filter for FO_MOVE */
            if (FO_RENAME == FuncSwitch)
            {
              if (!(b_FromMask) && (b_SameRoot) && SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL))
              {
                if (!b_RenamOnColl) /* neu */
              /* target is the same as source ? W98 has 0x71, W2K also */
                  retCode = 0x71;
                goto shfileop_exit;
              } /* endif */
              if ((nt40 == WOsVers) && (b_FromMask))
              {
                retCode = 0x72;  /* only found in nt40, not w98se or w2k */
                goto shfileop_exit;
              } /* endif */
              if ((b_FromMask && !b_ToMask) || !b_SameRoot || \
                !SHFileStrICmpW(pTempFrom, pTempTo, pFromFile, NULL) || \
                 SHFileStrICmpW(pTempFrom, pTempTo, pFromFile, HIGH_ADR))
              {
                retCode = 0x73; /* must be here or before, not later */
                goto shfileop_exit;
              }
              if (!(b_ToMask) && !(pToTailSlash) && IsAttribDir(ToAttr))
              {
                if (IsAttribDir(FromAttr))
                  ToAttr = SHRenameOnCollision(pTempTo, pToFile, pFromFile, &nFileOp);
                if ((w98se >= WOsVers) && IsAttribDir(ToAttr /* can be changed from SHRenameOnCollision */))
                {
                  /* never in W2K */
                  retCode = ERROR_INVALID_NAME; /* FOF_NOCONFIRMATION ? */
                  goto shfileop_exit;
                }
              } /* endif */
              if ((INVALID_FILE_ATTRIBUTES != ToPathAttr) || (b_ToMask && (w98se >= WOsVers)))
              /* w2k only (INVALID_FILE_ATTRIBUTES != ToPathAttr) */
              {
                retCode = SHFileOperationMove(&nFileOp);
              }
              else
                /* W98 returns 0x75, W2K 0x4c7 */
                retCode = retCodeIsInvalid;
              goto shfileop_exit;
            } /* FO_RENAME ends, only FO_MOVE or FO_COPY valid from here */

            if (b_FromMask)
            {
              /* FO_COPY/FO_MOVE with mask, FO_DELETE are solved long before */
              hFind = FindFirstFileW(pFrom, &wfd);
              if (INVALID_HANDLE_VALUE == hFind)
              {
                /* the retcode for this case is unknown */
                goto shfileop_IsInvalid;
              }
              SetIfPointer(pToTailSlash, '\0');
              ToAttr = SHFindAttrW(pTempTo, FALSE);
              if (b_ToMask && !b_Multi)
                nFileOp.fFlags &= ~FOF_RENAMEONCOLLISION;
              nFileOp.fFlags &= ~FOF_MULTIDESTFILES;
              pToFile = SHFileStrCpyCatW(pTempTo, NULL, wBackslash);
              do
              {
                lpFileName = wfd.cAlternateFileName;
                if (!lpFileName[0])
                  lpFileName = wfd.cFileName;
                if (IsDotDir(lpFileName) ||
                    (b_FileMask && IsAttribDir(wfd.dwFileAttributes)))
                  continue; /* next name in pTempFrom(dir) */
                if (INVALID_FILE_ATTRIBUTES == ToAttr)
                {
                  if (b_MultiTo)
                  {
                    retCode = retCodeIsInvalid;
                    break; /* we need the FindClose */
                  }
                  if (b_ToMask)
                  {
                    if ((w2k <= WOsVers) && IsAttribDir(wfd.dwFileAttributes)) /* w2k,wXp is tested */
                    {
                      if (w2k == WOsVers)
                        retCode = ERROR_ALREADY_EXISTS; /* no root for target exist, and w2k send this, kind of mad */
                      else
                        retCode = ERROR_INVALID_NAME; /* wXp */
                      nFileOp.fAnyOperationsAborted |= TRUE;
                      break;
                    }
                  }
                  else
                  {
                    nFileOp.fFlags |= FOF_MULTIDESTFILES;
                    SHFileStrCpyCatW(&pToFile[1], lpFileName, NULL);
                  }
                }
                SHFileStrCpyCatW(&pFromFile[1], lpFileName, NULL);
                retCode = SHFileOperationW (&nFileOp);
              } while(!retCode && FindNextFileW(hFind, &wfd));
              FindClose(hFind);
              if (retCodeIsInvalid == retCode)
                goto shfileop_IsInvalid;
              continue;
            }

            if ((INVALID_FILE_ATTRIBUTES != (FromAttr | ToAttr)) && b_RenamOnColl && !(b_ToMask) && !(pToTailSlash))
            {
              if (b_SameRoot_MOVE && !(b_Multi) && IsAttribDir(FromAttr & ToAttr) && SHFileStrICmpW(pTempFrom, pTempTo, HIGH_ADR, HIGH_ADR))
              {
                retCode = ERROR_FILENAME_EXCED_RANGE; /* in w98/w2k recursive move, we does this not */
                if (w98se >= WOsVers) retCode |= 0x10000; /* unexpected, seen in w98se and nt40sp6 */
                goto shfileop_exit;
              }
              if ( /* i-means indifferent */ 
//        /*bad*/   ( b_SameRoot_MOVE && !(b_Multi) && !(b_MultiFrom) && IsAttribDir(ToAttr) && !(SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL)))
//        /*bad*/   ( b_SameRoot_MOVE && !(b_Multi) &&  (b_MultiFrom) && IsAttribDir(ToAttr) && !(SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL)))
          /*ok*/    ( b_SameRoot_MOVE &&  (b_Multi) && !(b_MultiFrom) && IsAttribDir(ToAttr) && !(SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL)))
//        /*bad*/|| ( b_SameRoot_MOVE &&  (b_Multi) &&  (b_MultiFrom) && IsAttribDir(ToAttr) && !(SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL)))
//
//        /*bad*/|| (!b_SameRoot_MOVE && !(b_Multi) && !(b_MultiFrom) && IsAttribDir(ToAttr) && IsAttribDir(FromAttr))
//        /*i*/  || (!b_SameRoot_MOVE && !(b_Multi) &&  (b_MultiFrom) && IsAttribDir(ToAttr) && IsAttribDir(FromAttr))
          /*ok*/ || (!b_SameRoot_MOVE &&  (b_Multi) && !(b_MultiFrom) && IsAttribDir(ToAttr) && IsAttribDir(FromAttr))
//        /*i*/  || (!b_SameRoot_MOVE &&  (b_Multi) &&  (b_MultiFrom) && IsAttribDir(ToAttr) && IsAttribDir(FromAttr))
//
          /*ok*/ || ( b_SameRoot_MOVE && IsAttribFile(FromAttr | ToAttr) && !(SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL)))
//
          /*ok*/ || (!b_SameRoot_MOVE && IsAttribFile(FromAttr | ToAttr))
          /*ok*/ || ((FO_COPY == FuncSwitch) && IsAttribDir(FromAttr) && IsAttribFile(ToAttr))
                  )
              {
                ToAttr = SHRenameOnCollision(pTempTo, pToFile, pFromFile, &nFileOp);
              } /* endif */
            } /* endif */
            if ((b_SameRoot) && !(b_MultiFrom) && (!b_RenamOnColl || b_SameRoot_MOVE)
            && SHFileStrICmpW(pTempFrom, pTempTo, NULL, NULL))
            {
              if (!b_RenamOnColl && (IsAttribFile(FromAttr))) /* neu */
                /* target is the same as source ? W98 has 0x71, W2K also */
                retCode = 0x71;
              goto shfileop_exit;
            } /* endif */

            /* Analycing for moving SourceName to as TargetName */
            if ((b_MultiFrom || !b_Multi) && (
                (IsAttribFile(FromAttr) && IsAttribDir(ToAttr))
            ||  (!b_MultiTo && IsAttribDir(ToAttr))
            ||  (!b_MultiTo && IsAttribDir(FromAttr) && b_MultiFrom && !b_SameRoot_MOVE)
               ))
            {
                SHFileStrCpyCatW(pTempTo, NULL, pFromFile);
                /* without FOF_MULTIDESTFILES shlfileop will create dir's recursive */
                nFileOp.fFlags |= FOF_MULTIDESTFILES;
                retCode = SHFileOperationW(&nFileOp);
                continue;
            }
            /* What can we do with one pair and FO_MOVE/FO_COPY ? */
            /* w98se, nt40 can create recursive dirs, W2K not! wMe ist not tested */
            if (IsAttribDir(ToPathAttr) || !b_SameRoot_MOVE || (w98se >= WOsVers))
            if (!b_MultiFrom) 
            {
              if (IsAttribFile(FromAttr))
              {
                if (b_SameRoot_MOVE &&
                  /* IsAttribDir(ToPathAttr) && !pToTailSlash && (bug) */
                  /* windows-bug, MOVE for File also with pToTailSlash, COPY not for this */
                   (!(IsAttribFile(ToAttr)) || (!(b_ask_overwrite) && b_not_overwrite)) &&
                   (IsAttribDir(ToPathAttr) || b_ToMask))
                {
                  /* At the same drive, we can move for FO_MOVE, dir to dir is solved later */
                  retCode = SHFileOperationMove(&nFileOp);
                  if ((nt40 == WOsVers) && (ERROR_ALREADY_EXISTS == retCode))
                    retCode = 0x10005;
                  continue;
                } /* endif */
                if (IsAttribDir(ToPathAttr) && !pToTailSlash && !IsAttribDir(ToAttr))
                {
                  if (!(FOI_NeverOverwrite & nFileOp.fAnyOperationsAborted))
                  {
                    if (!b_not_overwrite)
                      ToAttr = INVALID_FILE_ATTRIBUTES;
                    if (IsAttribFile(ToAttr) && b_not_overwrite)
                    {
                      if (b_ask_overwrite)
                      {
                        /* we must change the dialog in the future for return 3-4 cases,
                         * 'Yes','No','Yes for all','Never ?' */
                        if ((INVALID_FILE_ATTRIBUTES != ToAttr) && !SHELL_ConfirmDialogW(ASK_OVERWRITE_FILE, pTempTo))
                        {
                          retCode = 0x10008;
                          nFileOp.fAnyOperationsAborted |= TRUE;
                          continue;
                        } 
                        ToAttr = INVALID_FILE_ATTRIBUTES;
                      } /* endif */
                    } /* endif */
                  } /* endif */
                  if (INVALID_FILE_ATTRIBUTES == ToAttr)
                  {
                    if (SHNotifyCopyFileW(pTempFrom, pTempTo, nFileOp.fFlags & FOF_RENAMEONCOLLISION))
                    {
                      /* the retcode for this case is unknown */
                      retCode = 0x10009;
                    }
                    if ((FO_COPY == FuncSwitch) || retCode)
                      continue;
                    nFileOp.wFunc =  ((level+1) << FO_LevelShift) + FO_DELETE;
                    retCode = SHFileOperationW(&nFileOp);
                    continue;
                  }
                }
              }
              if (IsAttribDir(FromAttr))
              {
                if (INVALID_FILE_ATTRIBUTES == ToAttr)
                {
                  SetIfPointer(pToTailSlash, '\0');
                  if (w2k <= WOsVers)  /* if w2k,wxp  not in w98se, nt40sp6 */
                  {
                    ToAttr = SHRenameOnCollision(pTempTo, pToFile, pFromFile, &nFileOp);
                    if (INVALID_FILE_ATTRIBUTES != ToAttr)
                    {
                      if (w2k == WOsVers)
                        retCode = ERROR_ALREADY_EXISTS; /* w2k */
                      else
                        retCode = ERROR_INVALID_NAME; /* wXp */
                      nFileOp.fAnyOperationsAborted |= TRUE;
                      goto shfileop_exit;
                    }
                    lpFileName = &pToFile[lstrlenW(pToFile)];
                    if (pToTailSlash)
                    {
                      pToTailSlash = lpFileName;
                      lpFileName++;
                    }
                    ((DWORD*)lpFileName)[0] = '\0';
                    retCode = SHCreateDirectoryExW(NULL,pTempTo, NULL);
                  }
                  else
                  { /* only for < w2k, tested with w98se,nt40sp6 */
                    if (IsAttribDir(ToPathAttr) || !b_SameRoot_MOVE || b_ToMask)
                    { /* tested with w98se, partially nt40sp6, w2k(wXp). only w98se,nt40sp6 can loop */
                      lpFileName = NULL;
                      while ((lpFileName = StrRChrW(pTempTo,lpFileName, '\\'),
                             INVALID_FILE_ATTRIBUTES == ToAttr) &&
                             (':' != lpFileName[-1])) /* not begin with root, or end with root */
                      {
                        SetIfPointer(lpFileName, '\0');
                        ToAttr = GetFileAttributesW(pTempTo); /* for continuing */
                        SetIfPointer(lpFileName--, '\\');
                      }
                      while (lpFileName && lpFileName[1] && !retCode)
                      {
                                    SetIfPointer(lpFileName,'\\');
                        lpFileName = StrChrW(++lpFileName,'\\');
                        SetIfPointer(lpFileName,'\0');
                        retCode = SHCreateDirectoryExW(NULL,pTempTo, NULL);
                      }
                    }
                  }
                  if (retCode)
                  {
                    retCode = (ERROR_PATH_NOT_FOUND | 0x10000); /* nt40,w98se,w2k,wxp */
                    goto shfileop_exit;
                  }
                  ToAttr = GetFileAttributesW(pTempTo);
                  SetIfPointer(pToTailSlash,'\\');
                  nFileOp.fFlags &= ~FOF_RENAMEONCOLLISION;
                }
                if (IsAttribDir(ToAttr))
                {
                  /* both are existing dirs, we (FO_)MOVE/COPY the content */
                  pToFile = SHFileStrCpyCatW(pTempFrom, NULL, wWildcardFile);
                  nFileOp.fFlags &= ~FOF_MULTIDESTFILES;
                  retCode = SHFileOperationW(&nFileOp);
                  if ((FO_COPY == FuncSwitch) || retCode)
                    continue;
                  ((DWORD*)pToFile)[0] = '\0';
                  nFileOp.wFunc =  ((level+1) << FO_LevelShift) + FO_DELETE;
                  retCode = SHFileOperationW(&nFileOp);
                  continue;
                }
              }
            } /* end-!b_MultiFrom */

shfileop_IsInvalid:
            if (!(b_SameRoot_MOVE) && (nt40 < WOsVers))
            {
              nFileOp.fAnyOperationsAborted |= TRUE;
            } /* endif */
            /* NT4.0,W98 returns 0x75, W2K,WXP 0x4c7 */
            retCode = retCodeIsInvalid;
            break;

          } /* end-while */

shfileop_exit:
        if (pTempFrom)
          SHFree(pTempFrom);
        TRACE("%s level=%ld AnyOpsAborted=%s ret=0x%lx, with %s %s%s\n",
              cFO_Name, level, (TRUE & nFileOp.fAnyOperationsAborted) ? "TRUE":"FALSE",
              retCode, debugstr_w(pFrom), pTo ? "-> ":"", debugstr_w(pTo));

        if (0 == level)
        {
          nFileOp.fAnyOperationsAborted &= TRUE;
          if (!(nFileOp.fFlags & FOF_WANTMAPPINGHANDLE))
          {
            SHFreeNameMappings((HANDLE)nFileOp.hNameMappings);
            nFileOp.hNameMappings = 0;
          }
        } 
        lpFileOp->hNameMappings         = nFileOp.hNameMappings;
        lpFileOp->fAnyOperationsAborted = nFileOp.fAnyOperationsAborted;
        return retCode;
}

/*************************************************************************
 *
 * SHNameTranslate HelperFunction for SHFileOperationA
 *
 * Translates a list of 0 terminated ASCII strings into Unicode. If *wString
 * is NULL, only the necessary size of the string is determined and returned,
 * otherwise the ASCII strings are copied into it and the buffer is increased
 * to point to the location after the final 0 termination char.
 */
DWORD SHNameTranslate(LPWSTR* wString, LPCWSTR* pWToFrom, BOOL more)
{
        DWORD size = 0, aSize = 0;
        LPCSTR aString = (LPCSTR)*pWToFrom;

        if (aString)
        {
          do
          {
            size = lstrlenA(aString) + 1;
            aSize += size;
            aString += size;
          } while ((size != 1) && more);
          /* The two sizes might be different in the case of multibyte chars */
          size = MultiByteToWideChar(CP_ACP, 0, aString, aSize, *wString, 0);
          if (*wString) /* only in the second loop */
          {
            MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*pWToFrom, aSize, *wString, size);
            *pWToFrom = *wString;
            *wString += size;
          }
        }
        return size;
}

/*************************************************************************
 * SHFileOperationA          [SHELL32.@]
 *
 * Function to copy, move, delete and create one or more files with optional
 * user prompts.
 *
 * PARAMS
 *  lpFileOp   [I/O] pointer to a structure containing all the necessary information
 *
 * NOTES
 *  exported by name
 */
DWORD WINAPI SHFileOperationA(LPSHFILEOPSTRUCTA lpFileOp)
{
        SHFILEOPSTRUCTW nFileOp = *((LPSHFILEOPSTRUCTW)lpFileOp);
        DWORD retCode = 0, size;
        LPWSTR ForFree = NULL, /* we change wString in SHNameTranslate and can't use it for freeing */
               wString = NULL; /* we change this in SHNameTranslate */

        TRACE("\n");
        for (;;) /* every loop calculate size, second translate also, if we have storage for this */
        {
          size = SHNameTranslate(&wString, &nFileOp.pFrom, TRUE); /* internal loop */
          if (FO_DELETE != (nFileOp.wFunc & FO_MASK))
            size += SHNameTranslate(&wString, &nFileOp.pTo, TRUE); /* internal loop */
          if ((nFileOp.fFlags & FOF_SIMPLEPROGRESS))
            size += SHNameTranslate(&wString, &nFileOp.lpszProgressTitle, FALSE); /* no loop */

          if (ForFree)
          {
            retCode = SHFileOperationW(&nFileOp);
            SHFree(ForFree); /* we can not use wString, it was changed */
            lpFileOp->hNameMappings         = nFileOp.hNameMappings;
            lpFileOp->fAnyOperationsAborted = nFileOp.fAnyOperationsAborted;
          }
          else
          {
            wString = ForFree = SHAlloc(size * sizeof(WCHAR));
            if (ForFree) continue;
            retCode = ERROR_OUTOFMEMORY;
            SetLastError(retCode);
          }
          return retCode;
        }
}

/*************************************************************************
 * SHFileOperation        [SHELL32.@]
 *
 */
DWORD WINAPI SHFileOperationAW(LPVOID lpFileOp)
{
        if (SHELL_OsIsUnicode())
          return SHFileOperationW(lpFileOp);
        return SHFileOperationA(lpFileOp);
}

/*************************************************************************
 * SheGetDirW [SHELL32.281]
 *
 */
HRESULT WINAPI SheGetDirW(LPWSTR u, LPWSTR v)
{  FIXME("%p %p stub\n",u,v);
        return 0;
}

/*************************************************************************
 * SheChangeDirW [SHELL32.274]
 *
 */
HRESULT WINAPI SheChangeDirW(LPWSTR u)
{       FIXME("(%s),stub\n",debugstr_w(u));
        return 0;
}

/*************************************************************************
 * IsNetDrive      [SHELL32.66]
 */
BOOL WINAPI IsNetDrive(DWORD drive)
{
        char root[4];
        strcpy(root, "A:\\");
        root[0] += (char)drive;
        return (GetDriveTypeA(root) == DRIVE_REMOTE);
}