dlls/shell32/shlfileop.c

   1 /*
   2  * SHFileOperation
   3  *
   4  * Copyright 2000 Juergen Schmied
   5  * Copyright 2002 Andriy Palamarchuk
   6  * Copyright 2004 Dietrich Teickner (from Odin)
   7  * Copyright 2004 Rolf Kalbermatter
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include "config.h"
  25 #include "wine/port.h"
  26
  27 #include <stdarg.h>
  28 #include <string.h>
  29 #include <ctype.h>
  30 #include <assert.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winreg.h"
  35 #include "shellapi.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38 #include "shlobj.h"
  39 #include "shresdef.h"
  40 #define NO_SHLWAPI_STREAM
  41 #include "shlwapi.h"
  42 #include "shell32_main.h"
  43 #include "undocshell.h"
  44 #include "wine/debug.h"
  45 #include "xdg.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  48
  49 #define IsAttrib(x, y)  ((INVALID_FILE_ATTRIBUTES != (x)) && ((x) & (y)))
  50 #define IsAttribFile(x) (!((x) & FILE_ATTRIBUTE_DIRECTORY))
  51 #define IsAttribDir(x)  IsAttrib(x, FILE_ATTRIBUTE_DIRECTORY)
  52 #define IsDotDir(x)     ((x[0] == '.') && ((x[1] == 0) || ((x[1] == '.') && (x[2] == 0))))
  53
  54 #define FO_MASK         0xF
  55
  56 #define DE_SAMEFILE      0x71
  57 #define DE_DESTSAMETREE  0x7D
  58
  59 static const WCHAR wWildcardFile[] = {'*',0};
  60 static const WCHAR wWildcardChars[] = {'*','?',0};
  61
  62 static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec);
  63 static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec);
  64 static DWORD SHNotifyRemoveDirectoryA(LPCSTR path);
  65 static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path);
  66 static DWORD SHNotifyDeleteFileA(LPCSTR path);
  67 static DWORD SHNotifyDeleteFileW(LPCWSTR path);
  68 static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest);
  69 static DWORD SHNotifyCopyFileW(LPCWSTR src, LPCWSTR dest, BOOL bFailIfExists);
  70 static DWORD SHFindAttrW(LPCWSTR pName, BOOL fileOnly);
  71
  72 typedef struct
  73 {
  74     SHFILEOPSTRUCTW *req;
  75     DWORD dwYesToAllMask;
  76     BOOL bManyItems;
  77     BOOL bCancelled;
  78 } FILE_OPERATION;
  79
  80 /* Confirm dialogs with an optional "Yes To All" as used in file operations confirmations
  81  */
  82 static const WCHAR CONFIRM_MSG_PROP[] = {'W','I','N','E','_','C','O','N','F','I','R','M',0};
  83
  84 struct confirm_msg_info
  85 {
  86     LPWSTR lpszText;
  87     LPWSTR lpszCaption;
  88     HICON hIcon;
  89     BOOL bYesToAll;
  90 };
  91
  92 /* as some buttons may be hidden and the dialog height may change we may need
  93  * to move the controls */
  94 static void confirm_msg_move_button(HWND hDlg, INT iId, INT *xPos, INT yOffset, BOOL bShow)
  95 {
  96     HWND hButton = GetDlgItem(hDlg, iId);
  97     RECT r;
  98
  99     if (bShow) {
 100         int width;
 101
 102         GetWindowRect(hButton, &r);
 103         MapWindowPoints( 0, hDlg, (POINT *)&r, 2 );
 104         width = r.right - r.left;
 105         SetWindowPos(hButton, 0, *xPos - width, r.top - yOffset, 0, 0,
 106                      SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW );
 107         *xPos -= width + 5;
 108     }
 109     else
 110         ShowWindow(hButton, SW_HIDE);
 111 }
 112
 113 /* Note: we paint the text manually and don't use the static control to make
 114  * sure the text has the same height as the one computed in WM_INITDIALOG
 115  */
 116 static INT_PTR ConfirmMsgBox_Paint(HWND hDlg)
 117 {
 118     PAINTSTRUCT ps;
 119     HFONT hOldFont;
 120     RECT r;
 121     HDC hdc;
 122
 123     BeginPaint(hDlg, &ps);
 124     hdc = ps.hdc;
 125
 126     GetClientRect(GetDlgItem(hDlg, IDD_MESSAGE), &r);
 127     /* this will remap the rect to dialog coords */
 128     MapWindowPoints(GetDlgItem(hDlg, IDD_MESSAGE), hDlg, (LPPOINT)&r, 2);
 129     hOldFont = SelectObject(hdc, (HFONT)SendDlgItemMessageW(hDlg, IDD_MESSAGE, WM_GETFONT, 0, 0));
 130     DrawTextW(hdc, GetPropW(hDlg, CONFIRM_MSG_PROP), -1, &r, DT_NOPREFIX | DT_PATH_ELLIPSIS | DT_WORDBREAK);
 131     SelectObject(hdc, hOldFont);
 132     EndPaint(hDlg, &ps);
 133     return TRUE;
 134 }
 135
 136 static INT_PTR ConfirmMsgBox_Init(HWND hDlg, LPARAM lParam)
 137 {
 138     struct confirm_msg_info *info = (struct confirm_msg_info *)lParam;
 139     INT xPos, yOffset;
 140     int width, height;
 141     HFONT hOldFont;
 142     HDC hdc;
 143     RECT r;
 144
 145     SetWindowTextW(hDlg, info->lpszCaption);
 146     ShowWindow(GetDlgItem(hDlg, IDD_MESSAGE), SW_HIDE);
 147     SetPropW(hDlg, CONFIRM_MSG_PROP, info->lpszText);
 148     SendDlgItemMessageW(hDlg, IDD_ICON, STM_SETICON, (WPARAM)info->hIcon, 0);
 149
 150     /* compute the text height and resize the dialog */
 151     GetClientRect(GetDlgItem(hDlg, IDD_MESSAGE), &r);
 152     hdc = GetDC(hDlg);
 153     yOffset = r.bottom;
 154     hOldFont = SelectObject(hdc, (HFONT)SendDlgItemMessageW(hDlg, IDD_MESSAGE, WM_GETFONT, 0, 0));
 155     DrawTextW(hdc, info->lpszText, -1, &r, DT_NOPREFIX | DT_PATH_ELLIPSIS | DT_WORDBREAK | DT_CALCRECT);
 156     SelectObject(hdc, hOldFont);
 157     yOffset -= r.bottom;
 158     yOffset = min(yOffset, 35);  /* don't make the dialog too small */
 159     ReleaseDC(hDlg, hdc);
 160
 161     GetClientRect(hDlg, &r);
 162     xPos = r.right - 7;
 163     GetWindowRect(hDlg, &r);
 164     width = r.right - r.left;
 165     height = r.bottom - r.top - yOffset;
 166     MoveWindow(hDlg, (GetSystemMetrics(SM_CXSCREEN) - width)/2,
 167         (GetSystemMetrics(SM_CYSCREEN) - height)/2, width, height, FALSE);
 168
 169     confirm_msg_move_button(hDlg, IDCANCEL,     &xPos, yOffset, info->bYesToAll);
 170     confirm_msg_move_button(hDlg, IDNO,         &xPos, yOffset, TRUE);
 171     confirm_msg_move_button(hDlg, IDD_YESTOALL, &xPos, yOffset, info->bYesToAll);
 172     confirm_msg_move_button(hDlg, IDYES,        &xPos, yOffset, TRUE);
 173     return TRUE;
 174 }
 175
 176 static INT_PTR CALLBACK ConfirmMsgBoxProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 177 {
 178     switch (uMsg)
 179     {
 180         case WM_INITDIALOG:
 181             return ConfirmMsgBox_Init(hDlg, lParam);
 182         case WM_PAINT:
 183             return ConfirmMsgBox_Paint(hDlg);
 184         case WM_COMMAND:
 185             EndDialog(hDlg, wParam);
 186             break;
 187         case WM_CLOSE:
 188             EndDialog(hDlg, IDCANCEL);
 189             break;
 190     }
 191     return FALSE;
 192 }
 193
 194 static int SHELL_ConfirmMsgBox(HWND hWnd, LPWSTR lpszText, LPWSTR lpszCaption, HICON hIcon, BOOL bYesToAll)
 195 {
 196     static const WCHAR wszTemplate[] = {'S','H','E','L','L','_','Y','E','S','T','O','A','L','L','_','M','S','G','B','O','X',0};
 197     struct confirm_msg_info info;
 198
 199     info.lpszText = lpszText;
 200     info.lpszCaption = lpszCaption;
 201     info.hIcon = hIcon;
 202     info.bYesToAll = bYesToAll;
 203     return DialogBoxParamW(shell32_hInstance, wszTemplate, hWnd, ConfirmMsgBoxProc, (LPARAM)&info);
 204 }
 205
 206 /* confirmation dialogs content */
 207 typedef struct
 208 {
 209         HINSTANCE hIconInstance;
 210         UINT icon_resource_id;
 211         UINT caption_resource_id, text_resource_id;
 212 } SHELL_ConfirmIDstruc;
 213
 214 static BOOL SHELL_ConfirmIDs(int nKindOfDialog, SHELL_ConfirmIDstruc *ids)
 215 {
 216         ids->hIconInstance = shell32_hInstance;
 217         switch (nKindOfDialog) {
 218           case ASK_DELETE_FILE:
 219             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 220             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 221             ids->text_resource_id  = IDS_DELETEITEM_TEXT;
 222             return TRUE;
 223           case ASK_DELETE_FOLDER:
 224             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 225             ids->caption_resource_id  = IDS_DELETEFOLDER_CAPTION;
 226             ids->text_resource_id  = IDS_DELETEITEM_TEXT;
 227             return TRUE;
 228           case ASK_DELETE_MULTIPLE_ITEM:
 229             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 230             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 231             ids->text_resource_id  = IDS_DELETEMULTIPLE_TEXT;
 232             return TRUE;
 233           case ASK_TRASH_FILE:
 234             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 235             ids->caption_resource_id = IDS_DELETEITEM_CAPTION;
 236             ids->text_resource_id = IDS_TRASHITEM_TEXT;
 237             return TRUE;
 238           case ASK_TRASH_FOLDER:
 239             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 240             ids->caption_resource_id = IDS_DELETEFOLDER_CAPTION;
 241             ids->text_resource_id = IDS_TRASHFOLDER_TEXT;
 242             return TRUE;
 243           case ASK_TRASH_MULTIPLE_ITEM:
 244             ids->icon_resource_id = IDI_SHELL_TRASH_FILE;
 245             ids->caption_resource_id = IDS_DELETEITEM_CAPTION;
 246             ids->text_resource_id = IDS_TRASHMULTIPLE_TEXT;
 247             return TRUE;
 248           case ASK_CANT_TRASH_ITEM:
 249             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 250             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 251             ids->text_resource_id  = IDS_CANTTRASH_TEXT;
 252             return TRUE;
 253           case ASK_DELETE_SELECTED:
 254             ids->icon_resource_id = IDI_SHELL_CONFIRM_DELETE;
 255             ids->caption_resource_id  = IDS_DELETEITEM_CAPTION;
 256             ids->text_resource_id  = IDS_DELETESELECTED_TEXT;
 257             return TRUE;
 258           case ASK_OVERWRITE_FILE:
 259             ids->hIconInstance = NULL;
 260             ids->icon_resource_id = IDI_WARNING;
 261             ids->caption_resource_id  = IDS_OVERWRITEFILE_CAPTION;
 262             ids->text_resource_id  = IDS_OVERWRITEFILE_TEXT;
 263             return TRUE;
 264           case ASK_OVERWRITE_FOLDER:
 265             ids->hIconInstance = NULL;
 266             ids->icon_resource_id = IDI_WARNING;
 267             ids->caption_resource_id  = IDS_OVERWRITEFILE_CAPTION;
 268             ids->text_resource_id  = IDS_OVERWRITEFOLDER_TEXT;
 269             return TRUE;
 270           default:
 271             FIXME(" Unhandled nKindOfDialog %d stub\n", nKindOfDialog);
 272         }
 273         return FALSE;
 274 }
 275
 276 static BOOL SHELL_ConfirmDialogW(HWND hWnd, int nKindOfDialog, LPCWSTR szDir, FILE_OPERATION *op)
 277 {
 278         WCHAR szCaption[255], szText[255], szBuffer[MAX_PATH + 256];
 279         SHELL_ConfirmIDstruc ids;
 280         DWORD_PTR args[1];
 281         HICON hIcon;
 282         int ret;
 283
 284         assert(nKindOfDialog >= 0 && nKindOfDialog < 32);
 285         if (op && (op->dwYesToAllMask & (1 << nKindOfDialog)))
 286             return TRUE;
 287
 288         if (!SHELL_ConfirmIDs(nKindOfDialog, &ids)) return FALSE;
 289
 290         LoadStringW(shell32_hInstance, ids.caption_resource_id, szCaption, sizeof(szCaption)/sizeof(WCHAR));
 291         LoadStringW(shell32_hInstance, ids.text_resource_id, szText, sizeof(szText)/sizeof(WCHAR));
 292
 293         args[0] = (DWORD_PTR)szDir;
 294         FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ARGUMENT_ARRAY,
 295                        szText, 0, 0, szBuffer, sizeof(szBuffer), (__ms_va_list*)args);
 296         hIcon = LoadIconW(ids.hIconInstance, (LPWSTR)MAKEINTRESOURCE(ids.icon_resource_id));
 297
 298         ret = SHELL_ConfirmMsgBox(hWnd, szBuffer, szCaption, hIcon, op && op->bManyItems);
 299         if (op) {
 300             if (ret == IDD_YESTOALL) {
 301                 op->dwYesToAllMask |= (1 << nKindOfDialog);
 302                 ret = IDYES;
 303             }
 304             if (ret == IDCANCEL)
 305                 op->bCancelled = TRUE;
 306             if (ret != IDYES)
 307                 op->req->fAnyOperationsAborted = TRUE;
 308         }
 309         return ret == IDYES;
 310 }
 311
 312 BOOL SHELL_ConfirmYesNoW(HWND hWnd, int nKindOfDialog, LPCWSTR szDir)
 313 {
 314     return SHELL_ConfirmDialogW(hWnd, nKindOfDialog, szDir, NULL);
 315 }
 316
 317 static DWORD SHELL32_AnsiToUnicodeBuf(LPCSTR aPath, LPWSTR *wPath, DWORD minChars)
 318 {
 319         DWORD len = MultiByteToWideChar(CP_ACP, 0, aPath, -1, NULL, 0);
 320
 321         if (len < minChars)
 322           len = minChars;
 323
 324         *wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 325         if (*wPath)
 326         {
 327           MultiByteToWideChar(CP_ACP, 0, aPath, -1, *wPath, len);
 328           return NO_ERROR;
 329         }
 330         return E_OUTOFMEMORY;
 331 }
 332
 333 static void SHELL32_FreeUnicodeBuf(LPWSTR wPath)
 334 {
 335         HeapFree(GetProcessHeap(), 0, wPath);
 336 }
 337
 338 HRESULT WINAPI SHIsFileAvailableOffline(LPCWSTR path, LPDWORD status)
 339 {
 340     FIXME("(%s, %p) stub\n", debugstr_w(path), status);
 341     return E_FAIL;
 342 }
 343
 344 /**************************************************************************
 345  * SHELL_DeleteDirectory()  [internal]
 346  *
 347  * Asks for confirmation when bShowUI is true and deletes the directory and
 348  * all its subdirectories and files if necessary.
 349  */
 350 static DWORD SHELL_DeleteDirectoryW(HWND hwnd, LPCWSTR pszDir, BOOL bShowUI)
 351 {
 352     DWORD    ret = 0;
 353     HANDLE  hFind;
 354     WIN32_FIND_DATAW wfd;
 355     WCHAR   szTemp[MAX_PATH];
 356
 357     PathCombineW(szTemp, pszDir, wWildcardFile);
 358     hFind = FindFirstFileW(szTemp, &wfd);
 359
 360     if (hFind != INVALID_HANDLE_VALUE) {
 361         if (!bShowUI || SHELL_ConfirmDialogW(hwnd, ASK_DELETE_FOLDER, pszDir, NULL)) {
 362             do {
 363                 if (IsDotDir(wfd.cFileName))
 364                     continue;
 365                 PathCombineW(szTemp, pszDir, wfd.cFileName);
 366                 if (FILE_ATTRIBUTE_DIRECTORY & wfd.dwFileAttributes)
 367                     ret = SHELL_DeleteDirectoryW(hwnd, szTemp, FALSE);
 368                 else
 369                     ret = SHNotifyDeleteFileW(szTemp);
 370             } while (!ret && FindNextFileW(hFind, &wfd));
 371         }
 372         FindClose(hFind);
 373     }
 374     if (ret == ERROR_SUCCESS)
 375         ret = SHNotifyRemoveDirectoryW(pszDir);
 376
 377     return ret == ERROR_PATH_NOT_FOUND ?
 378         0x7C: /* DE_INVALIDFILES (legacy Windows error) */
 379         ret;
 380 }
 381
 382 /**************************************************************************
 383  * Win32CreateDirectory      [SHELL32.93]
 384  *
 385  * Creates a directory. Also triggers a change notify if one exists.
 386  *
 387  * PARAMS
 388  *  path       [I]   path to directory to create
 389  *
 390  * RETURNS
 391  *  TRUE if successful, FALSE otherwise
 392  *
 393  * NOTES
 394  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 395  *  This is Unicode on NT/2000
 396  */
 397 static DWORD SHNotifyCreateDirectoryA(LPCSTR path, LPSECURITY_ATTRIBUTES sec)
 398 {
 399         LPWSTR wPath;
 400         DWORD retCode;
 401
 402         TRACE("(%s, %p)\n", debugstr_a(path), sec);
 403
 404         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 405         if (!retCode)
 406         {
 407           retCode = SHNotifyCreateDirectoryW(wPath, sec);
 408           SHELL32_FreeUnicodeBuf(wPath);
 409         }
 410         return retCode;
 411 }
 412
 413 /**********************************************************************/
 414
 415 static DWORD SHNotifyCreateDirectoryW(LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
 416 {
 417         TRACE("(%s, %p)\n", debugstr_w(path), sec);
 418
 419         if (CreateDirectoryW(path, sec))
 420         {
 421           SHChangeNotify(SHCNE_MKDIR, SHCNF_PATHW, path, NULL);
 422           return ERROR_SUCCESS;
 423         }
 424         return GetLastError();
 425 }
 426
 427 /**********************************************************************/
 428
 429 BOOL WINAPI Win32CreateDirectoryAW(LPCVOID path, LPSECURITY_ATTRIBUTES sec)
 430 {
 431         if (SHELL_OsIsUnicode())
 432           return (SHNotifyCreateDirectoryW(path, sec) == ERROR_SUCCESS);
 433         return (SHNotifyCreateDirectoryA(path, sec) == ERROR_SUCCESS);
 434 }
 435
 436 /************************************************************************
 437  * Win32RemoveDirectory      [SHELL32.94]
 438  *
 439  * Deletes a directory. Also triggers a change notify if one exists.
 440  *
 441  * PARAMS
 442  *  path       [I]   path to directory to delete
 443  *
 444  * RETURNS
 445  *  TRUE if successful, FALSE otherwise
 446  *
 447  * NOTES
 448  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 449  *  This is Unicode on NT/2000
 450  */
 451 static DWORD SHNotifyRemoveDirectoryA(LPCSTR path)
 452 {
 453         LPWSTR wPath;
 454         DWORD retCode;
 455
 456         TRACE("(%s)\n", debugstr_a(path));
 457
 458         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 459         if (!retCode)
 460         {
 461           retCode = SHNotifyRemoveDirectoryW(wPath);
 462           SHELL32_FreeUnicodeBuf(wPath);
 463         }
 464         return retCode;
 465 }
 466
 467 /***********************************************************************/
 468
 469 static DWORD SHNotifyRemoveDirectoryW(LPCWSTR path)
 470 {
 471         BOOL ret;
 472         TRACE("(%s)\n", debugstr_w(path));
 473
 474         ret = RemoveDirectoryW(path);
 475         if (!ret)
 476         {
 477           /* Directory may be write protected */
 478           DWORD dwAttr = GetFileAttributesW(path);
 479           if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY))
 480             if (SetFileAttributesW(path, dwAttr & ~FILE_ATTRIBUTE_READONLY))
 481               ret = RemoveDirectoryW(path);
 482         }
 483         if (ret)
 484         {
 485           SHChangeNotify(SHCNE_RMDIR, SHCNF_PATHW, path, NULL);
 486           return ERROR_SUCCESS;
 487         }
 488         return GetLastError();
 489 }
 490
 491 /***********************************************************************/
 492
 493 BOOL WINAPI Win32RemoveDirectoryAW(LPCVOID path)
 494 {
 495         if (SHELL_OsIsUnicode())
 496           return (SHNotifyRemoveDirectoryW(path) == ERROR_SUCCESS);
 497         return (SHNotifyRemoveDirectoryA(path) == ERROR_SUCCESS);
 498 }
 499
 500 /************************************************************************
 501  * Win32DeleteFile           [SHELL32.164]
 502  *
 503  * Deletes a file. Also triggers a change notify if one exists.
 504  *
 505  * PARAMS
 506  *  path       [I]   path to file to delete
 507  *
 508  * RETURNS
 509  *  TRUE if successful, FALSE otherwise
 510  *
 511  * NOTES
 512  *  Verified on Win98 / IE 5 (SHELL32 4.72, March 1999 build) to be ANSI.
 513  *  This is Unicode on NT/2000
 514  */
 515 static DWORD SHNotifyDeleteFileA(LPCSTR path)
 516 {
 517         LPWSTR wPath;
 518         DWORD retCode;
 519
 520         TRACE("(%s)\n", debugstr_a(path));
 521
 522         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 523         if (!retCode)
 524         {
 525           retCode = SHNotifyDeleteFileW(wPath);
 526           SHELL32_FreeUnicodeBuf(wPath);
 527         }
 528         return retCode;
 529 }
 530
 531 /***********************************************************************/
 532
 533 static DWORD SHNotifyDeleteFileW(LPCWSTR path)
 534 {
 535         BOOL ret;
 536
 537         TRACE("(%s)\n", debugstr_w(path));
 538
 539         ret = DeleteFileW(path);
 540         if (!ret)
 541         {
 542           /* File may be write protected or a system file */
 543           DWORD dwAttr = GetFileAttributesW(path);
 544           if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
 545             if (SetFileAttributesW(path, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
 546               ret = DeleteFileW(path);
 547         }
 548         if (ret)
 549         {
 550           SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, path, NULL);
 551           return ERROR_SUCCESS;
 552         }
 553         return GetLastError();
 554 }
 555
 556 /***********************************************************************/
 557
 558 DWORD WINAPI Win32DeleteFileAW(LPCVOID path)
 559 {
 560         if (SHELL_OsIsUnicode())
 561           return (SHNotifyDeleteFileW(path) == ERROR_SUCCESS);
 562         return (SHNotifyDeleteFileA(path) == ERROR_SUCCESS);
 563 }
 564
 565 /************************************************************************
 566  * SHNotifyMoveFile          [internal]
 567  *
 568  * Moves a file. Also triggers a change notify if one exists.
 569  *
 570  * PARAMS
 571  *  src        [I]   path to source file to move
 572  *  dest       [I]   path to target file to move to
 573  *
 574  * RETURNS
 575  *  ERORR_SUCCESS if successful
 576  */
 577 static DWORD SHNotifyMoveFileW(LPCWSTR src, LPCWSTR dest)
 578 {
 579         BOOL ret;
 580
 581         TRACE("(%s %s)\n", debugstr_w(src), debugstr_w(dest));
 582
 583         ret = MoveFileExW(src, dest, MOVEFILE_REPLACE_EXISTING);
 584
 585         /* MOVEFILE_REPLACE_EXISTING fails with dirs, so try MoveFile */
 586         if (!ret)
 587             ret = MoveFileW(src, dest);
 588
 589         if (!ret)
 590         {
 591           DWORD dwAttr;
 592
 593           dwAttr = SHFindAttrW(dest, FALSE);
 594           if (INVALID_FILE_ATTRIBUTES == dwAttr)
 595           {
 596             /* Source file may be write protected or a system file */
 597             dwAttr = GetFileAttributesW(src);
 598             if (IsAttrib(dwAttr, FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM))
 599               if (SetFileAttributesW(src, dwAttr & ~(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_SYSTEM)))
 600                 ret = MoveFileW(src, dest);
 601           }
 602         }
 603         if (ret)
 604         {
 605           SHChangeNotify(SHCNE_RENAMEITEM, SHCNF_PATHW, src, dest);
 606           return ERROR_SUCCESS;
 607         }
 608         return GetLastError();
 609 }
 610
 611 /************************************************************************
 612  * SHNotifyCopyFile          [internal]
 613  *
 614  * Copies a file. Also triggers a change notify if one exists.
 615  *
 616  * PARAMS
 617  *  src           [I]   path to source file to move
 618  *  dest          [I]   path to target file to move to
 619  *  bFailIfExists [I]   if TRUE, the target file will not be overwritten if
 620  *                      a file with this name already exists
 621  *
 622  * RETURNS
 623  *  ERROR_SUCCESS if successful
 624  */
 625 static DWORD SHNotifyCopyFileW(LPCWSTR src, LPCWSTR dest, BOOL bFailIfExists)
 626 {
 627         BOOL ret;
 628         DWORD attribs;
 629
 630         TRACE("(%s %s %s)\n", debugstr_w(src), debugstr_w(dest), bFailIfExists ? "failIfExists" : "");
 631
 632         /* Destination file may already exist with read only attribute */
 633         attribs = GetFileAttributesW(dest);
 634         if (IsAttrib(attribs, FILE_ATTRIBUTE_READONLY))
 635           SetFileAttributesW(dest, attribs & ~FILE_ATTRIBUTE_READONLY);
 636
 637         ret = CopyFileW(src, dest, bFailIfExists);
 638         if (ret)
 639         {
 640           SHChangeNotify(SHCNE_CREATE, SHCNF_PATHW, dest, NULL);
 641           return ERROR_SUCCESS;
 642         }
 643
 644         return GetLastError();
 645 }
 646
 647 /*************************************************************************
 648  * SHCreateDirectory         [SHELL32.165]
 649  *
 650  * This function creates a file system folder whose fully qualified path is
 651  * given by path. If one or more of the intermediate folders do not exist,
 652  * they will be created as well.
 653  *
 654  * PARAMS
 655  *  hWnd       [I]
 656  *  path       [I]   path of directory to create
 657  *
 658  * RETURNS
 659  *  ERROR_SUCCESS or one of the following values:
 660  *  ERROR_BAD_PATHNAME if the path is relative
 661  *  ERROR_FILE_EXISTS when a file with that name exists
 662  *  ERROR_PATH_NOT_FOUND can't find the path, probably invalid
 663  *  ERROR_INVALID_NAME if the path contains invalid chars
 664  *  ERROR_ALREADY_EXISTS when the directory already exists
 665  *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 666  *
 667  * NOTES
 668  *  exported by ordinal
 669  *  Win9x exports ANSI
 670  *  WinNT/2000 exports Unicode
 671  */
 672 DWORD WINAPI SHCreateDirectory(HWND hWnd, LPCVOID path)
 673 {
 674         if (SHELL_OsIsUnicode())
 675           return SHCreateDirectoryExW(hWnd, path, NULL);
 676         return SHCreateDirectoryExA(hWnd, path, NULL);
 677 }
 678
 679 /*************************************************************************
 680  * SHCreateDirectoryExA      [SHELL32.@]
 681  *
 682  * This function creates a file system folder whose fully qualified path is
 683  * given by path. If one or more of the intermediate folders do not exist,
 684  * they will be created as well.
 685  *
 686  * PARAMS
 687  *  hWnd       [I]
 688  *  path       [I]   path of directory to create
 689  *  sec        [I]   security attributes to use or NULL
 690  *
 691  * RETURNS
 692  *  ERROR_SUCCESS or one of the following values:
 693  *  ERROR_BAD_PATHNAME or ERROR_PATH_NOT_FOUND if the path is relative
 694  *  ERROR_INVALID_NAME if the path contains invalid chars
 695  *  ERROR_FILE_EXISTS when a file with that name exists
 696  *  ERROR_ALREADY_EXISTS when the directory already exists
 697  *  ERROR_FILENAME_EXCED_RANGE if the filename was to long to process
 698  *
 699  *  FIXME: Not implemented yet;
 700  *  SHCreateDirectoryEx also verifies that the files in the directory will be visible
 701  *  if the path is a network path to deal with network drivers which might have a limited
 702  *  but unknown maximum path length. If not:
 703  *
 704  *  If hWnd is set to a valid window handle, a message box is displayed warning
 705  *  the user that the files may not be accessible. If the user chooses not to
 706  *  proceed, the function returns ERROR_CANCELLED.
 707  *
 708  *  If hWnd is set to NULL, no user interface is displayed and the function
 709  *  returns ERROR_CANCELLED.
 710  */
 711 int WINAPI SHCreateDirectoryExA(HWND hWnd, LPCSTR path, LPSECURITY_ATTRIBUTES sec)
 712 {
 713         LPWSTR wPath;
 714         DWORD retCode;
 715
 716         TRACE("(%s, %p)\n", debugstr_a(path), sec);
 717
 718         retCode = SHELL32_AnsiToUnicodeBuf(path, &wPath, 0);
 719         if (!retCode)
 720         {
 721           retCode = SHCreateDirectoryExW(hWnd, wPath, sec);
 722           SHELL32_FreeUnicodeBuf(wPath);
 723         }
 724         return retCode;
 725 }
 726
 727 /*************************************************************************
 728  * SHCreateDirectoryExW      [SHELL32.@]
 729  *
 730  * See SHCreateDirectoryExA.
 731  */
 732 int WINAPI SHCreateDirectoryExW(HWND hWnd, LPCWSTR path, LPSECURITY_ATTRIBUTES sec)
 733 {
 734         int ret = ERROR_BAD_PATHNAME;
 735         TRACE("(%p, %s, %p)\n", hWnd, debugstr_w(path), sec);
 736
 737         if (PathIsRelativeW(path))
 738         {
 739           SetLastError(ret);
 740         }
 741         else
 742         {
 743           ret = SHNotifyCreateDirectoryW(path, sec);
 744           /* Refuse to work on certain error codes before trying to create directories recursively */
 745           if (ret != ERROR_SUCCESS &&
 746               ret != ERROR_FILE_EXISTS &&
 747               ret != ERROR_ALREADY_EXISTS &&
 748               ret != ERROR_FILENAME_EXCED_RANGE)
 749           {
 750             WCHAR *pEnd, *pSlash, szTemp[MAX_PATH + 1];  /* extra for PathAddBackslash() */
 751
 752             lstrcpynW(szTemp, path, MAX_PATH);
 753             pEnd = PathAddBackslashW(szTemp);
 754             pSlash = szTemp + 3;
 755
 756             while (*pSlash)
 757             {
 758               while (*pSlash && *pSlash != '\\') pSlash++;
 759               if (*pSlash)
 760               {
 761                 *pSlash = 0;    /* terminate path at separator */
 762
 763                 ret = SHNotifyCreateDirectoryW(szTemp, pSlash + 1 == pEnd ? sec : NULL);
 764               }
 765               *pSlash++ = '\\'; /* put the separator back */
 766             }
 767           }
 768
 769           if (ret && hWnd && (ERROR_CANCELLED != ret))
 770           {
 771             /* We failed and should show a dialog box */
 772             FIXME("Show system error message, creating path %s, failed with error %d\n", debugstr_w(path), ret);
 773             ret = ERROR_CANCELLED; /* Error has been already presented to user (not really yet!) */
 774           }
 775         }
 776         return ret;
 777 }
 778
 779 /*************************************************************************
 780  * SHFindAttrW      [internal]
 781  *
 782  * Get the Attributes for a file or directory. The difference to GetAttributes()
 783  * is that this function will also work for paths containing wildcard characters
 784  * in its filename.
 785
 786  * PARAMS
 787  *  path       [I]   path of directory or file to check
 788  *  fileOnly   [I]   TRUE if only files should be found
 789  *
 790  * RETURNS
 791  *  INVALID_FILE_ATTRIBUTES if the path does not exist, the actual attributes of
 792  *  the first file or directory found otherwise
 793  */
 794 static DWORD SHFindAttrW(LPCWSTR pName, BOOL fileOnly)
 795 {
 796         WIN32_FIND_DATAW wfd;
 797         BOOL b_FileMask = fileOnly && (NULL != StrPBrkW(pName, wWildcardChars));
 798         DWORD dwAttr = INVALID_FILE_ATTRIBUTES;
 799         HANDLE hFind = FindFirstFileW(pName, &wfd);
 800
 801         TRACE("%s %d\n", debugstr_w(pName), fileOnly);
 802         if (INVALID_HANDLE_VALUE != hFind)
 803         {
 804           do
 805           {
 806             if (b_FileMask && IsAttribDir(wfd.dwFileAttributes))
 807                continue;
 808             dwAttr = wfd.dwFileAttributes;
 809             break;
 810           }
 811           while (FindNextFileW(hFind, &wfd));
 812           FindClose(hFind);
 813         }
 814         return dwAttr;
 815 }
 816
 817 /*************************************************************************
 818  *
 819  * SHNameTranslate HelperFunction for SHFileOperationA
 820  *
 821  * Translates a list of 0 terminated ASCII strings into Unicode. If *wString
 822  * is NULL, only the necessary size of the string is determined and returned,
 823  * otherwise the ASCII strings are copied into it and the buffer is increased
 824  * to point to the location after the final 0 termination char.
 825  */
 826 static DWORD SHNameTranslate(LPWSTR* wString, LPCWSTR* pWToFrom, BOOL more)
 827 {
 828         DWORD size = 0, aSize = 0;
 829         LPCSTR aString = (LPCSTR)*pWToFrom;
 830
 831         if (aString)
 832         {
 833           do
 834           {
 835             size = lstrlenA(aString) + 1;
 836             aSize += size;
 837             aString += size;
 838           } while ((size != 1) && more);
 839           /* The two sizes might be different in the case of multibyte chars */
 840           size = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*pWToFrom, aSize, *wString, 0);
 841           if (*wString) /* only in the second loop */
 842           {
 843             MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*pWToFrom, aSize, *wString, size);
 844             *pWToFrom = *wString;
 845             *wString += size;
 846           }
 847         }
 848         return size;
 849 }
 850 /*************************************************************************
 851  * SHFileOperationA          [SHELL32.@]
 852  *
 853  * Function to copy, move, delete and create one or more files with optional
 854  * user prompts.
 855  *
 856  * PARAMS
 857  *  lpFileOp   [I/O] pointer to a structure containing all the necessary information
 858  *
 859  * RETURNS
 860  *  Success: ERROR_SUCCESS.
 861  *  Failure: ERROR_CANCELLED.
 862  *
 863  * NOTES
 864  *  exported by name
 865  */
 866 int WINAPI SHFileOperationA(LPSHFILEOPSTRUCTA lpFileOp)
 867 {
 868         SHFILEOPSTRUCTW nFileOp = *((LPSHFILEOPSTRUCTW)lpFileOp);
 869         int retCode = 0;
 870         DWORD size;
 871         LPWSTR ForFree = NULL, /* we change wString in SHNameTranslate and can't use it for freeing */
 872                wString = NULL; /* we change this in SHNameTranslate */
 873
 874         TRACE("\n");
 875         if (FO_DELETE == (nFileOp.wFunc & FO_MASK))
 876           nFileOp.pTo = NULL; /* we need a NULL or a valid pointer for translation */
 877         if (!(nFileOp.fFlags & FOF_SIMPLEPROGRESS))
 878           nFileOp.lpszProgressTitle = NULL; /* we need a NULL or a valid pointer for translation */
 879         while (1) /* every loop calculate size, second translate also, if we have storage for this */
 880         {
 881           size = SHNameTranslate(&wString, &nFileOp.lpszProgressTitle, FALSE); /* no loop */
 882           size += SHNameTranslate(&wString, &nFileOp.pFrom, TRUE); /* internal loop */
 883           size += SHNameTranslate(&wString, &nFileOp.pTo, TRUE); /* internal loop */
 884
 885           if (ForFree)
 886           {
 887             retCode = SHFileOperationW(&nFileOp);
 888             HeapFree(GetProcessHeap(), 0, ForFree); /* we cannot use wString, it was changed */
 889             break;
 890           }
 891           else
 892           {
 893             wString = ForFree = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR));
 894             if (ForFree) continue;
 895             retCode = ERROR_OUTOFMEMORY;
 896             nFileOp.fAnyOperationsAborted = TRUE;
 897             SetLastError(retCode);
 898             return retCode;
 899           }
 900         }
 901
 902         lpFileOp->hNameMappings = nFileOp.hNameMappings;
 903         lpFileOp->fAnyOperationsAborted = nFileOp.fAnyOperationsAborted;
 904         return retCode;
 905 }
 906
 907 #define ERROR_SHELL_INTERNAL_FILE_NOT_FOUND 1026
 908
 909 typedef struct
 910 {
 911     DWORD attributes;
 912     LPWSTR szDirectory;
 913     LPWSTR szFilename;
 914     LPWSTR szFullPath;
 915     BOOL bFromWildcard;
 916     BOOL bFromRelative;
 917     BOOL bExists;
 918 } FILE_ENTRY;
 919
 920 typedef struct
 921 {
 922     FILE_ENTRY *feFiles;
 923     DWORD num_alloc;
 924     DWORD dwNumFiles;
 925     BOOL bAnyFromWildcard;
 926     BOOL bAnyDirectories;
 927     BOOL bAnyDontExist;
 928 } FILE_LIST;
 929
 930
 931 static inline void grow_list(FILE_LIST *list)
 932 {
 933     FILE_ENTRY *new = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, list->feFiles,
 934                                   list->num_alloc * 2 * sizeof(*new) );
 935     list->feFiles = new;
 936     list->num_alloc *= 2;
 937 }
 938
 939 /* adds a file to the FILE_ENTRY struct
 940  */
 941 static void add_file_to_entry(FILE_ENTRY *feFile, LPCWSTR szFile)
 942 {
 943     DWORD dwLen = lstrlenW(szFile) + 1;
 944     LPCWSTR ptr;
 945
 946     feFile->szFullPath = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 947     lstrcpyW(feFile->szFullPath, szFile);
 948
 949     ptr = StrRChrW(szFile, NULL, '\\');
 950     if (ptr)
 951     {
 952         dwLen = ptr - szFile + 1;
 953         feFile->szDirectory = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 954         lstrcpynW(feFile->szDirectory, szFile, dwLen);
 955
 956         dwLen = lstrlenW(feFile->szFullPath) - dwLen + 1;
 957         feFile->szFilename = HeapAlloc(GetProcessHeap(), 0, dwLen * sizeof(WCHAR));
 958         lstrcpyW(feFile->szFilename, ptr + 1); /* skip over backslash */
 959     }
 960     feFile->bFromWildcard = FALSE;
 961 }
 962
 963 static LPWSTR wildcard_to_file(LPCWSTR szWildCard, LPCWSTR szFileName)
 964 {
 965     LPCWSTR ptr;
 966     LPWSTR szFullPath;
 967     DWORD dwDirLen, dwFullLen;
 968
 969     ptr = StrRChrW(szWildCard, NULL, '\\');
 970     dwDirLen = ptr - szWildCard + 1;
 971
 972     dwFullLen = dwDirLen + lstrlenW(szFileName) + 1;
 973     szFullPath = HeapAlloc(GetProcessHeap(), 0, dwFullLen * sizeof(WCHAR));
 974
 975     lstrcpynW(szFullPath, szWildCard, dwDirLen + 1);
 976     lstrcatW(szFullPath, szFileName);
 977
 978     return szFullPath;
 979 }
 980
 981 static void parse_wildcard_files(FILE_LIST *flList, LPCWSTR szFile, LPDWORD pdwListIndex)
 982 {
 983     WIN32_FIND_DATAW wfd;
 984     HANDLE hFile = FindFirstFileW(szFile, &wfd);
 985     FILE_ENTRY *file;
 986     LPWSTR szFullPath;
 987     BOOL res;
 988
 989     if (hFile == INVALID_HANDLE_VALUE) return;
 990
 991     for (res = TRUE; res; res = FindNextFileW(hFile, &wfd))
 992     {
 993         if (IsDotDir(wfd.cFileName)) continue;
 994         if (*pdwListIndex >= flList->num_alloc) grow_list( flList );
 995         szFullPath = wildcard_to_file(szFile, wfd.cFileName);
 996         file = &flList->feFiles[(*pdwListIndex)++];
 997         add_file_to_entry(file, szFullPath);
 998         file->bFromWildcard = TRUE;
 999         file->attributes = wfd.dwFileAttributes;
1000         if (IsAttribDir(file->attributes)) flList->bAnyDirectories = TRUE;
1001         HeapFree(GetProcessHeap(), 0, szFullPath);
1002     }
1003
1004     FindClose(hFile);
1005 }
1006
1007 /* takes the null-separated file list and fills out the FILE_LIST */
1008 static HRESULT parse_file_list(FILE_LIST *flList, LPCWSTR szFiles)
1009 {
1010     LPCWSTR ptr = szFiles;
1011     WCHAR szCurFile[MAX_PATH];
1012     DWORD i = 0;
1013
1014     if (!szFiles)
1015         return ERROR_INVALID_PARAMETER;
1016
1017     flList->bAnyFromWildcard = FALSE;
1018     flList->bAnyDirectories = FALSE;
1019     flList->bAnyDontExist = FALSE;
1020     flList->num_alloc = 32;
1021     flList->dwNumFiles = 0;
1022
1023     /* empty list */
1024     if (!szFiles[0])
1025         return ERROR_ACCESS_DENIED;
1026
1027     flList->feFiles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1028                                 flList->num_alloc * sizeof(FILE_ENTRY));
1029
1030     while (*ptr)
1031     {
1032         if (i >= flList->num_alloc) grow_list( flList );
1033
1034         /* change relative to absolute path */
1035         if (PathIsRelativeW(ptr))
1036         {
1037             GetCurrentDirectoryW(MAX_PATH, szCurFile);
1038             PathCombineW(szCurFile, szCurFile, ptr);
1039             flList->feFiles[i].bFromRelative = TRUE;
1040         }
1041         else
1042         {
1043             lstrcpyW(szCurFile, ptr);
1044             flList->feFiles[i].bFromRelative = FALSE;
1045         }
1046
1047         /* parse wildcard files if they are in the filename */
1048         if (StrPBrkW(szCurFile, wWildcardChars))
1049         {
1050             parse_wildcard_files(flList, szCurFile, &i);
1051             flList->bAnyFromWildcard = TRUE;
1052             i--;
1053         }
1054         else
1055         {
1056             FILE_ENTRY *file = &flList->feFiles[i];
1057             add_file_to_entry(file, szCurFile);
1058             file->attributes = GetFileAttributesW( file->szFullPath );
1059             file->bExists = (file->attributes != INVALID_FILE_ATTRIBUTES);
1060             if (!file->bExists) flList->bAnyDontExist = TRUE;
1061             if (IsAttribDir(file->attributes)) flList->bAnyDirectories = TRUE;
1062         }
1063
1064         /* advance to the next string */
1065         ptr += lstrlenW(ptr) + 1;
1066         i++;
1067     }
1068     flList->dwNumFiles = i;
1069
1070     return S_OK;
1071 }
1072
1073 /* free the FILE_LIST */
1074 static void destroy_file_list(FILE_LIST *flList)
1075 {
1076     DWORD i;
1077
1078     if (!flList || !flList->feFiles)
1079         return;
1080
1081     for (i = 0; i < flList->dwNumFiles; i++)
1082     {
1083         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szDirectory);
1084         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szFilename);
1085         HeapFree(GetProcessHeap(), 0, flList->feFiles[i].szFullPath);
1086     }
1087
1088     HeapFree(GetProcessHeap(), 0, flList->feFiles);
1089 }
1090
1091 static void copy_dir_to_dir(FILE_OPERATION *op, const FILE_ENTRY *feFrom, LPCWSTR szDestPath)
1092 {
1093     WCHAR szFrom[MAX_PATH], szTo[MAX_PATH];
1094     SHFILEOPSTRUCTW fileOp;
1095
1096     static const WCHAR wildCardFiles[] = {'*','.','*',0};
1097
1098     if (IsDotDir(feFrom->szFilename))
1099         return;
1100
1101     if (PathFileExistsW(szDestPath))
1102         PathCombineW(szTo, szDestPath, feFrom->szFilename);
1103     else
1104         lstrcpyW(szTo, szDestPath);
1105
1106     if (!(op->req->fFlags & FOF_NOCONFIRMATION) && PathFileExistsW(szTo)) {
1107         if (!SHELL_ConfirmDialogW(op->req->hwnd, ASK_OVERWRITE_FOLDER, feFrom->szFilename, op))
1108         {
1109             /* Vista returns an ERROR_CANCELLED even if user pressed "No" */
1110             if (!op->bManyItems)
1111                 op->bCancelled = TRUE;
1112             return;
1113         }
1114     }
1115
1116     szTo[lstrlenW(szTo) + 1] = '\0';
1117     SHNotifyCreateDirectoryW(szTo, NULL);
1118
1119     PathCombineW(szFrom, feFrom->szFullPath, wildCardFiles);
1120     szFrom[lstrlenW(szFrom) + 1] = '\0';
1121
1122     fileOp = *op->req;
1123     fileOp.pFrom = szFrom;
1124     fileOp.pTo = szTo;
1125     fileOp.fFlags &= ~FOF_MULTIDESTFILES; /* we know we're copying to one dir */
1126
1127     /* Don't ask the user about overwriting files when he accepted to overwrite the
1128        folder. FIXME: this is not exactly what Windows does - e.g. there would be
1129        an additional confirmation for a nested folder */
1130     fileOp.fFlags |= FOF_NOCONFIRMATION;
1131
1132     SHFileOperationW(&fileOp);
1133 }
1134
1135 static BOOL copy_file_to_file(FILE_OPERATION *op, const WCHAR *szFrom, const WCHAR *szTo)
1136 {
1137     if (!(op->req->fFlags & FOF_NOCONFIRMATION) && PathFileExistsW(szTo))
1138     {
1139         if (!SHELL_ConfirmDialogW(op->req->hwnd, ASK_OVERWRITE_FILE, PathFindFileNameW(szTo), op))
1140             return FALSE;
1141     }
1142
1143     return SHNotifyCopyFileW(szFrom, szTo, FALSE) == 0;
1144 }
1145
1146 /* copy a file or directory to another directory */
1147 static void copy_to_dir(FILE_OPERATION *op, const FILE_ENTRY *feFrom, const FILE_ENTRY *feTo)
1148 {
1149     if (!PathFileExistsW(feTo->szFullPath))
1150         SHNotifyCreateDirectoryW(feTo->szFullPath, NULL);
1151
1152     if (IsAttribFile(feFrom->attributes))
1153     {
1154         WCHAR szDestPath[MAX_PATH];
1155
1156         PathCombineW(szDestPath, feTo->szFullPath, feFrom->szFilename);
1157         copy_file_to_file(op, feFrom->szFullPath, szDestPath);
1158     }
1159     else if (!(op->req->fFlags & FOF_FILESONLY && feFrom->bFromWildcard))
1160         copy_dir_to_dir(op, feFrom, feTo->szFullPath);
1161 }
1162
1163 static void create_dest_dirs(LPCWSTR szDestDir)
1164 {
1165     WCHAR dir[MAX_PATH];
1166     LPCWSTR ptr = StrChrW(szDestDir, '\\');
1167
1168     /* make sure all directories up to last one are created */
1169     while (ptr && (ptr = StrChrW(ptr + 1, '\\')))
1170     {
1171         lstrcpynW(dir, szDestDir, ptr - szDestDir + 1);
1172
1173         if (!PathFileExistsW(dir))
1174             SHNotifyCreateDirectoryW(dir, NULL);
1175     }
1176
1177     /* create last directory */
1178     if (!PathFileExistsW(szDestDir))
1179         SHNotifyCreateDirectoryW(szDestDir, NULL);
1180 }
1181
1182 /* the FO_COPY operation */
1183 static DWORD copy_files(FILE_OPERATION *op, const FILE_LIST *flFrom, FILE_LIST *flTo)
1184 {
1185     DWORD i;
1186     const FILE_ENTRY *entryToCopy;
1187     const FILE_ENTRY *fileDest = &flTo->feFiles[0];
1188
1189     if (flFrom->bAnyDontExist)
1190         return ERROR_SHELL_INTERNAL_FILE_NOT_FOUND;
1191
1192     if (flTo->dwNumFiles == 0)
1193     {
1194         /* If the destination is empty, SHFileOperation should use the current directory */
1195         WCHAR curdir[MAX_PATH+1];
1196
1197         GetCurrentDirectoryW(MAX_PATH, curdir);
1198         curdir[lstrlenW(curdir)+1] = 0;
1199
1200         destroy_file_list(flTo);
1201         ZeroMemory(flTo, sizeof(FILE_LIST));
1202         parse_file_list(flTo, curdir);
1203         fileDest = &flTo->feFiles[0];
1204     }
1205
1206     if (op->req->fFlags & FOF_MULTIDESTFILES)
1207     {
1208         if (flFrom->bAnyFromWildcard)
1209             return ERROR_CANCELLED;
1210
1211         if (flFrom->dwNumFiles != flTo->dwNumFiles)
1212         {
1213             if (flFrom->dwNumFiles != 1 && !IsAttribDir(fileDest->attributes))
1214                 return ERROR_CANCELLED;
1215
1216             /* Free all but the first entry. */
1217             for (i = 1; i < flTo->dwNumFiles; i++)
1218             {
1219                 HeapFree(GetProcessHeap(), 0, flTo->feFiles[i].szDirectory);
1220                 HeapFree(GetProcessHeap(), 0, flTo->feFiles[i].szFilename);
1221                 HeapFree(GetProcessHeap(), 0, flTo->feFiles[i].szFullPath);
1222             }
1223
1224             flTo->dwNumFiles = 1;
1225         }
1226         else if (IsAttribDir(fileDest->attributes))
1227         {
1228             for (i = 1; i < flTo->dwNumFiles; i++)
1229                 if (!IsAttribDir(flTo->feFiles[i].attributes) ||
1230                     !IsAttribDir(flFrom->feFiles[i].attributes))
1231                 {
1232                     return ERROR_CANCELLED;
1233                 }
1234         }
1235     }
1236     else if (flFrom->dwNumFiles != 1)
1237     {
1238         if (flTo->dwNumFiles != 1 && !IsAttribDir(fileDest->attributes))
1239             return ERROR_CANCELLED;
1240
1241         if (PathFileExistsW(fileDest->szFullPath) &&
1242             IsAttribFile(fileDest->attributes))
1243         {
1244             return ERROR_CANCELLED;
1245         }
1246
1247         if (flTo->dwNumFiles == 1 && fileDest->bFromRelative &&
1248             !PathFileExistsW(fileDest->szFullPath))
1249         {
1250             return ERROR_CANCELLED;
1251         }
1252     }
1253
1254     for (i = 0; i < flFrom->dwNumFiles; i++)
1255     {
1256         entryToCopy = &flFrom->feFiles[i];
1257
1258         if ((op->req->fFlags & FOF_MULTIDESTFILES) &&
1259             flTo->dwNumFiles > 1)
1260         {
1261             fileDest = &flTo->feFiles[i];
1262         }
1263
1264         if (IsAttribDir(entryToCopy->attributes) &&
1265             !lstrcmpiW(entryToCopy->szFullPath, fileDest->szDirectory))
1266         {
1267             return ERROR_SUCCESS;
1268         }
1269
1270         create_dest_dirs(fileDest->szDirectory);
1271
1272         if (!lstrcmpiW(entryToCopy->szFullPath, fileDest->szFullPath))
1273         {
1274             if (IsAttribFile(entryToCopy->attributes))
1275                 return ERROR_NO_MORE_SEARCH_HANDLES;
1276             else
1277                 return ERROR_SUCCESS;
1278         }
1279
1280         if ((flFrom->dwNumFiles > 1 && flTo->dwNumFiles == 1) ||
1281             IsAttribDir(fileDest->attributes))
1282         {
1283             copy_to_dir(op, entryToCopy, fileDest);
1284         }
1285         else if (IsAttribDir(entryToCopy->attributes))
1286         {
1287             copy_dir_to_dir(op, entryToCopy, fileDest->szFullPath);
1288         }
1289         else
1290         {
1291             if (!copy_file_to_file(op, entryToCopy->szFullPath, fileDest->szFullPath))
1292             {
1293                 op->req->fAnyOperationsAborted = TRUE;
1294                 return ERROR_CANCELLED;
1295             }
1296         }
1297
1298         /* Vista return code. XP would return e.g. ERROR_FILE_NOT_FOUND, ERROR_ALREADY_EXISTS */
1299         if (op->bCancelled)
1300             return ERROR_CANCELLED;
1301     }
1302
1303     /* Vista return code. On XP if the used pressed "No" for the last item,
1304      * ERROR_ARENA_TRASHED would be returned */
1305     return ERROR_SUCCESS;
1306 }
1307
1308 static BOOL confirm_delete_list(HWND hWnd, DWORD fFlags, BOOL fTrash, const FILE_LIST *flFrom)
1309 {
1310     if (flFrom->dwNumFiles > 1)
1311     {
1312         WCHAR tmp[8];
1313         const WCHAR format[] = {'%','d',0};
1314
1315         wnsprintfW(tmp, sizeof(tmp)/sizeof(tmp[0]), format, flFrom->dwNumFiles);
1316         return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_MULTIPLE_ITEM:ASK_DELETE_MULTIPLE_ITEM), tmp, NULL);
1317     }
1318     else
1319     {
1320         const FILE_ENTRY *fileEntry = &flFrom->feFiles[0];
1321
1322         if (IsAttribFile(fileEntry->attributes))
1323             return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_FILE:ASK_DELETE_FILE), fileEntry->szFullPath, NULL);
1324         else if (!(fFlags & FOF_FILESONLY && fileEntry->bFromWildcard))
1325             return SHELL_ConfirmDialogW(hWnd, (fTrash?ASK_TRASH_FOLDER:ASK_DELETE_FOLDER), fileEntry->szFullPath, NULL);
1326     }
1327     return TRUE;
1328 }
1329
1330 /* the FO_DELETE operation */
1331 static DWORD delete_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom)
1332 {
1333     const FILE_ENTRY *fileEntry;
1334     DWORD i, ret;
1335     BOOL bTrash;
1336
1337     if (!flFrom->dwNumFiles)
1338         return ERROR_SUCCESS;
1339
1340     /* Windows also checks only the first item */
1341     bTrash = (lpFileOp->fFlags & FOF_ALLOWUNDO)
1342         && TRASH_CanTrashFile(flFrom->feFiles[0].szFullPath);
1343
1344     if (!(lpFileOp->fFlags & FOF_NOCONFIRMATION) || (!bTrash && lpFileOp->fFlags & FOF_WANTNUKEWARNING))
1345         if (!confirm_delete_list(lpFileOp->hwnd, lpFileOp->fFlags, bTrash, flFrom))
1346         {
1347             lpFileOp->fAnyOperationsAborted = TRUE;
1348             return 0;
1349         }
1350
1351     for (i = 0; i < flFrom->dwNumFiles; i++)
1352     {
1353         fileEntry = &flFrom->feFiles[i];
1354
1355         if (!IsAttribFile(fileEntry->attributes) &&
1356             (lpFileOp->fFlags & FOF_FILESONLY && fileEntry->bFromWildcard))
1357             continue;
1358
1359         if (bTrash)
1360         {
1361             BOOL bDelete;
1362             if (TRASH_TrashFile(fileEntry->szFullPath))
1363                 continue;
1364
1365             /* Note: Windows silently deletes the file in such a situation, we show a dialog */
1366             if (!(lpFileOp->fFlags & FOF_NOCONFIRMATION) || (lpFileOp->fFlags & FOF_WANTNUKEWARNING))
1367                 bDelete = SHELL_ConfirmDialogW(lpFileOp->hwnd, ASK_CANT_TRASH_ITEM, fileEntry->szFullPath, NULL);
1368             else
1369                 bDelete = TRUE;
1370
1371             if (!bDelete)
1372             {
1373                 lpFileOp->fAnyOperationsAborted = TRUE;
1374                 break;
1375             }
1376         }
1377
1378         /* delete the file or directory */
1379         if (IsAttribFile(fileEntry->attributes))
1380             ret = DeleteFileW(fileEntry->szFullPath) ?
1381                     ERROR_SUCCESS : GetLastError();
1382         else
1383             ret = SHELL_DeleteDirectoryW(lpFileOp->hwnd, fileEntry->szFullPath, FALSE);
1384
1385         if (ret)
1386             return ret;
1387     }
1388
1389     return ERROR_SUCCESS;
1390 }
1391
1392 static void move_dir_to_dir(LPSHFILEOPSTRUCTW lpFileOp, const FILE_ENTRY *feFrom, LPCWSTR szDestPath)
1393 {
1394     WCHAR szFrom[MAX_PATH], szTo[MAX_PATH];
1395     SHFILEOPSTRUCTW fileOp;
1396
1397     static const WCHAR wildCardFiles[] = {'*','.','*',0};
1398
1399     if (IsDotDir(feFrom->szFilename))
1400         return;
1401
1402     SHNotifyCreateDirectoryW(szDestPath, NULL);
1403
1404     PathCombineW(szFrom, feFrom->szFullPath, wildCardFiles);
1405     szFrom[lstrlenW(szFrom) + 1] = '\0';
1406
1407     lstrcpyW(szTo, szDestPath);
1408     szTo[lstrlenW(szDestPath) + 1] = '\0';
1409
1410     fileOp = *lpFileOp;
1411     fileOp.pFrom = szFrom;
1412     fileOp.pTo = szTo;
1413
1414     SHFileOperationW(&fileOp);
1415 }
1416
1417 /* moves a file or directory to another directory */
1418 static void move_to_dir(LPSHFILEOPSTRUCTW lpFileOp, const FILE_ENTRY *feFrom, const FILE_ENTRY *feTo)
1419 {
1420     WCHAR szDestPath[MAX_PATH];
1421
1422     PathCombineW(szDestPath, feTo->szFullPath, feFrom->szFilename);
1423
1424     if (IsAttribFile(feFrom->attributes))
1425         SHNotifyMoveFileW(feFrom->szFullPath, szDestPath);
1426     else if (!(lpFileOp->fFlags & FOF_FILESONLY && feFrom->bFromWildcard))
1427         move_dir_to_dir(lpFileOp, feFrom, szDestPath);
1428 }
1429
1430 /* the FO_MOVE operation */
1431 static DWORD move_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom, const FILE_LIST *flTo)
1432 {
1433     DWORD i;
1434     INT mismatched = 0;
1435     const FILE_ENTRY *entryToMove;
1436     const FILE_ENTRY *fileDest;
1437
1438     if (!flFrom->dwNumFiles)
1439         return ERROR_SUCCESS;
1440
1441     if (!flTo->dwNumFiles)
1442         return ERROR_FILE_NOT_FOUND;
1443
1444     if (!(lpFileOp->fFlags & FOF_MULTIDESTFILES) &&
1445         flTo->dwNumFiles > 1 && flFrom->dwNumFiles > 1)
1446     {
1447         return ERROR_CANCELLED;
1448     }
1449
1450     if (!(lpFileOp->fFlags & FOF_MULTIDESTFILES) &&
1451         !flFrom->bAnyDirectories &&
1452         flFrom->dwNumFiles > flTo->dwNumFiles)
1453     {
1454         return ERROR_CANCELLED;
1455     }
1456
1457     if (!PathFileExistsW(flTo->feFiles[0].szDirectory))
1458         return ERROR_CANCELLED;
1459
1460     if (lpFileOp->fFlags & FOF_MULTIDESTFILES)
1461         mismatched = flFrom->dwNumFiles - flTo->dwNumFiles;
1462
1463     fileDest = &flTo->feFiles[0];
1464     for (i = 0; i < flFrom->dwNumFiles; i++)
1465     {
1466         entryToMove = &flFrom->feFiles[i];
1467
1468         if (!PathFileExistsW(fileDest->szDirectory))
1469             return ERROR_CANCELLED;
1470
1471         if (lpFileOp->fFlags & FOF_MULTIDESTFILES)
1472         {
1473             if (i >= flTo->dwNumFiles)
1474                 break;
1475             fileDest = &flTo->feFiles[i];
1476             if (mismatched && !fileDest->bExists)
1477             {
1478                 create_dest_dirs(flTo->feFiles[i].szFullPath);
1479                 flTo->feFiles[i].bExists = TRUE;
1480                 flTo->feFiles[i].attributes = FILE_ATTRIBUTE_DIRECTORY;
1481             }
1482         }
1483
1484         if (fileDest->bExists && IsAttribDir(fileDest->attributes))
1485             move_to_dir(lpFileOp, entryToMove, fileDest);
1486         else
1487             SHNotifyMoveFileW(entryToMove->szFullPath, fileDest->szFullPath);
1488     }
1489
1490     if (mismatched > 0)
1491     {
1492         if (flFrom->bAnyDirectories)
1493             return DE_DESTSAMETREE;
1494         else
1495             return DE_SAMEFILE;
1496     }
1497
1498     return ERROR_SUCCESS;
1499 }
1500
1501 /* the FO_RENAME files */
1502 static DWORD rename_files(LPSHFILEOPSTRUCTW lpFileOp, const FILE_LIST *flFrom, const FILE_LIST *flTo)
1503 {
1504     const FILE_ENTRY *feFrom;
1505     const FILE_ENTRY *feTo;
1506
1507     if (flFrom->dwNumFiles != 1)
1508         return ERROR_GEN_FAILURE;
1509
1510     if (flTo->dwNumFiles != 1)
1511         return ERROR_CANCELLED;
1512
1513     feFrom = &flFrom->feFiles[0];
1514     feTo= &flTo->feFiles[0];
1515
1516     /* fail if destination doesn't exist */
1517     if (!feFrom->bExists)
1518         return ERROR_SHELL_INTERNAL_FILE_NOT_FOUND;
1519
1520     /* fail if destination already exists */
1521     if (feTo->bExists)
1522         return ERROR_ALREADY_EXISTS;
1523
1524     return SHNotifyMoveFileW(feFrom->szFullPath, feTo->szFullPath);
1525 }
1526
1527 /* alert the user if an unsupported flag is used */
1528 static void check_flags(FILEOP_FLAGS fFlags)
1529 {
1530     WORD wUnsupportedFlags = FOF_NO_CONNECTED_ELEMENTS |
1531         FOF_NOCOPYSECURITYATTRIBS | FOF_NORECURSEREPARSE |
1532         FOF_RENAMEONCOLLISION | FOF_WANTMAPPINGHANDLE;
1533
1534     if (fFlags & wUnsupportedFlags)
1535         FIXME("Unsupported flags: %04x\n", fFlags);
1536 }
1537
1538 /*************************************************************************
1539  * SHFileOperationW          [SHELL32.@]
1540  *
1541  * See SHFileOperationA
1542  */
1543 int WINAPI SHFileOperationW(LPSHFILEOPSTRUCTW lpFileOp)
1544 {
1545     FILE_OPERATION op;
1546     FILE_LIST flFrom, flTo;
1547     int ret = 0;
1548
1549     if (!lpFileOp)
1550         return ERROR_INVALID_PARAMETER;
1551
1552     check_flags(lpFileOp->fFlags);
1553
1554     ZeroMemory(&flFrom, sizeof(FILE_LIST));
1555     ZeroMemory(&flTo, sizeof(FILE_LIST));
1556
1557     if ((ret = parse_file_list(&flFrom, lpFileOp->pFrom)))
1558         return ret;
1559
1560     if (lpFileOp->wFunc != FO_DELETE)
1561         parse_file_list(&flTo, lpFileOp->pTo);
1562
1563     ZeroMemory(&op, sizeof(op));
1564     op.req = lpFileOp;
1565     op.bManyItems = (flFrom.dwNumFiles > 1);
1566     lpFileOp->fAnyOperationsAborted = FALSE;
1567
1568     switch (lpFileOp->wFunc)
1569     {
1570         case FO_COPY:
1571             ret = copy_files(&op, &flFrom, &flTo);
1572             break;
1573         case FO_DELETE:
1574             ret = delete_files(lpFileOp, &flFrom);
1575             break;
1576         case FO_MOVE:
1577             ret = move_files(lpFileOp, &flFrom, &flTo);
1578             break;
1579         case FO_RENAME:
1580             ret = rename_files(lpFileOp, &flFrom, &flTo);
1581             break;
1582         default:
1583             ret = ERROR_INVALID_PARAMETER;
1584             break;
1585     }
1586
1587     destroy_file_list(&flFrom);
1588
1589     if (lpFileOp->wFunc != FO_DELETE)
1590         destroy_file_list(&flTo);
1591
1592     if (ret == ERROR_CANCELLED)
1593         lpFileOp->fAnyOperationsAborted = TRUE;
1594
1595     return ret;
1596 }
1597
1598 #define SHDSA_GetItemCount(hdsa) (*(int*)(hdsa))
1599
1600 /*************************************************************************
1601  * SHFreeNameMappings      [shell32.246]
1602  *
1603  * Free the mapping handle returned by SHFileOperation if FOF_WANTSMAPPINGHANDLE
1604  * was specified.
1605  *
1606  * PARAMS
1607  *  hNameMapping [I] handle to the name mappings used during renaming of files
1608  *
1609  * RETURNS
1610  *  Nothing
1611  */
1612 void WINAPI SHFreeNameMappings(HANDLE hNameMapping)
1613 {
1614         if (hNameMapping)
1615         {
1616           int i = SHDSA_GetItemCount((HDSA)hNameMapping) - 1;
1617
1618           for (; i>= 0; i--)
1619           {
1620             LPSHNAMEMAPPINGW lp = DSA_GetItemPtr(hNameMapping, i);
1621
1622             SHFree(lp->pszOldPath);
1623             SHFree(lp->pszNewPath);
1624           }
1625           DSA_Destroy(hNameMapping);
1626         }
1627 }
1628
1629 /*************************************************************************
1630  * SheGetDirA [SHELL32.@]
1631  *
1632  * drive = 0: returns the current directory path
1633  * drive > 0: returns the current directory path of the specified drive
1634  *            drive=1 -> A:  drive=2 -> B:  ...
1635  * returns 0 if successful
1636 */
1637 DWORD WINAPI SheGetDirA(DWORD drive, LPSTR buffer)
1638 {
1639     WCHAR org_path[MAX_PATH];
1640     DWORD ret;
1641     char drv_path[3];
1642
1643     /* change current directory to the specified drive */
1644     if (drive) {
1645         strcpy(drv_path, "A:");
1646         drv_path[0] += (char)drive-1;
1647
1648         GetCurrentDirectoryW(MAX_PATH, org_path);
1649
1650         SetCurrentDirectoryA(drv_path);
1651     }
1652
1653     /* query current directory path of the specified drive */
1654     ret = GetCurrentDirectoryA(MAX_PATH, buffer);
1655
1656     /* back to the original drive */
1657     if (drive)
1658         SetCurrentDirectoryW(org_path);
1659
1660     if (!ret)
1661         return GetLastError();
1662
1663     return 0;
1664 }
1665
1666 /*************************************************************************
1667  * SheGetDirW [SHELL32.@]
1668  *
1669  * drive = 0: returns the current directory path
1670  * drive > 0: returns the current directory path of the specified drive
1671  *            drive=1 -> A:  drive=2 -> B:  ...
1672  * returns 0 if successful
1673  */
1674 DWORD WINAPI SheGetDirW(DWORD drive, LPWSTR buffer)
1675 {
1676     WCHAR org_path[MAX_PATH];
1677     DWORD ret;
1678     char drv_path[3];
1679
1680     /* change current directory to the specified drive */
1681     if (drive) {
1682         strcpy(drv_path, "A:");
1683         drv_path[0] += (char)drive-1;
1684
1685         GetCurrentDirectoryW(MAX_PATH, org_path);
1686
1687         SetCurrentDirectoryA(drv_path);
1688     }
1689
1690     /* query current directory path of the specified drive */
1691     ret = GetCurrentDirectoryW(MAX_PATH, buffer);
1692
1693     /* back to the original drive */
1694     if (drive)
1695         SetCurrentDirectoryW(org_path);
1696
1697     if (!ret)
1698         return GetLastError();
1699
1700     return 0;
1701 }
1702
1703 /*************************************************************************
1704  * SheChangeDirA [SHELL32.@]
1705  *
1706  * changes the current directory to the specified path
1707  * and returns 0 if successful
1708  */
1709 DWORD WINAPI SheChangeDirA(LPSTR path)
1710 {
1711     if (SetCurrentDirectoryA(path))
1712         return 0;
1713     else
1714         return GetLastError();
1715 }
1716
1717 /*************************************************************************
1718  * SheChangeDirW [SHELL32.@]
1719  *
1720  * changes the current directory to the specified path
1721  * and returns 0 if successful
1722  */
1723 DWORD WINAPI SheChangeDirW(LPWSTR path)
1724 {
1725     if (SetCurrentDirectoryW(path))
1726         return 0;
1727     else
1728         return GetLastError();
1729 }
1730
1731 /*************************************************************************
1732  * IsNetDrive                   [SHELL32.66]
1733  */
1734 int WINAPI IsNetDrive(int drive)
1735 {
1736         char root[4];
1737         strcpy(root, "A:\\");
1738         root[0] += (char)drive;
1739         return (GetDriveTypeA(root) == DRIVE_REMOTE);
1740 }
1741
1742
1743 /*************************************************************************
1744  * RealDriveType                [SHELL32.524]
1745  */
1746 int WINAPI RealDriveType(int drive, BOOL bQueryNet)
1747 {
1748     char root[] = "A:\\";
1749     root[0] += (char)drive;
1750     return GetDriveTypeA(root);
1751 }
1752
1753 /***********************************************************************
1754  *              SHPathPrepareForWriteA (SHELL32.@)
1755  */
1756 HRESULT WINAPI SHPathPrepareForWriteA(HWND hwnd, IUnknown *modless, LPCSTR path, DWORD flags)
1757 {
1758     WCHAR wpath[MAX_PATH];
1759     MultiByteToWideChar( CP_ACP, 0, path, -1, wpath, MAX_PATH);
1760     return SHPathPrepareForWriteW(hwnd, modless, wpath, flags);
1761 }
1762
1763 /***********************************************************************
1764  *              SHPathPrepareForWriteW (SHELL32.@)
1765  */
1766 HRESULT WINAPI SHPathPrepareForWriteW(HWND hwnd, IUnknown *modless, LPCWSTR path, DWORD flags)
1767 {
1768     DWORD res;
1769     DWORD err;
1770     LPCWSTR realpath;
1771     int len;
1772     WCHAR* last_slash;
1773     WCHAR* temppath=NULL;
1774
1775     TRACE("%p %p %s 0x%80x\n", hwnd, modless, debugstr_w(path), flags);
1776
1777     if (flags & ~(SHPPFW_DIRCREATE|SHPPFW_ASKDIRCREATE|SHPPFW_IGNOREFILENAME))
1778         FIXME("unimplemented flags 0x%08x\n", flags);
1779
1780     /* cut off filename if necessary */
1781     if (flags & SHPPFW_IGNOREFILENAME)
1782     {
1783         last_slash = StrRChrW(path, NULL, '\\');
1784         if (last_slash == NULL)
1785             len = 1;
1786         else
1787             len = last_slash - path + 1;
1788         temppath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1789         if (!temppath)
1790             return E_OUTOFMEMORY;
1791         StrCpyNW(temppath, path, len);
1792         realpath = temppath;
1793     }
1794     else
1795     {
1796         realpath = path;
1797     }
1798
1799     /* try to create the directory if asked to */
1800     if (flags & (SHPPFW_DIRCREATE|SHPPFW_ASKDIRCREATE))
1801     {
1802         if (flags & SHPPFW_ASKDIRCREATE)
1803             FIXME("treating SHPPFW_ASKDIRCREATE as SHPPFW_DIRCREATE\n");
1804
1805         SHCreateDirectoryExW(0, realpath, NULL);
1806     }
1807
1808     /* check if we can access the directory */
1809     res = GetFileAttributesW(realpath);
1810
1811     HeapFree(GetProcessHeap(), 0, temppath);
1812
1813     if (res == INVALID_FILE_ATTRIBUTES)
1814     {
1815         err = GetLastError();
1816         if (err == ERROR_FILE_NOT_FOUND)
1817             return HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
1818         return HRESULT_FROM_WIN32(err);
1819     }
1820     else if (res & FILE_ATTRIBUTE_DIRECTORY)
1821         return S_OK;
1822     else
1823         return HRESULT_FROM_WIN32(ERROR_DIRECTORY);
1824 }