dlls/shell32/pidl.c

   1 /*
   2  *    pidl Handling
   3  *
   4  *    Copyright 1998    Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * NOTES
  21  *  a pidl == NULL means desktop and is legal
  22  *
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <ctype.h>
  29 #include <stdarg.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #define COBJMACROS
  34 #define NONAMELESSUNION
  35 #define NONAMELESSSTRUCT
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winreg.h"
  40 #include "objbase.h"
  41 #include "shlguid.h"
  42 #include "winerror.h"
  43 #include "winnls.h"
  44 #include "undocshell.h"
  45 #include "shell32_main.h"
  46 #include "shlwapi.h"
  47
  48 #include "pidl.h"
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  52 WINE_DECLARE_DEBUG_CHANNEL(shell);
  53
  54 /* from comctl32.dll */
  55 extern LPVOID WINAPI Alloc(INT);
  56 extern BOOL WINAPI Free(LPVOID);
  57
  58 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl);
  59 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl);
  60
  61 /*************************************************************************
  62  * ILGetDisplayNameExA
  63  *
  64  * Retrieves the display name of an ItemIDList
  65  *
  66  * PARAMS
  67  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  68  *  pidl       [I]   ItemIDList relative to the psf to get the display name for
  69  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  70  *  type       [I]   Type of display name to retrieve
  71  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  72  *                    1 = SHGDN_NORMAL relative to the root folder
  73  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  74  *
  75  * RETURNS
  76  *  True if the display name could be retrieved successfully, False otherwise
  77  */
  78 static BOOL ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  79 {
  80     BOOL ret = FALSE;
  81     WCHAR wPath[MAX_PATH];
  82
  83     TRACE("%p %p %p %d\n", psf, pidl, path, type);
  84
  85     if (!pidl || !path)
  86         return FALSE;
  87
  88     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  89     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  90     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  91
  92     return ret;
  93 }
  94
  95 BOOL ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  96 {
  97     LPSHELLFOLDER psfParent, lsf = psf;
  98     HRESULT ret = NO_ERROR;
  99     LPCITEMIDLIST pidllast;
 100     STRRET strret;
 101     DWORD flag;
 102
 103     TRACE("%p %p %p %x\n", psf, pidl, path, type);
 104
 105     if (!pidl || !path)
 106         return FALSE;
 107
 108     if (!lsf)
 109     {
 110         ret = SHGetDesktopFolder(&lsf);
 111         if (FAILED(ret))
 112             return FALSE;
 113     }
 114
 115     switch (type)
 116     {
 117     case ILGDN_FORPARSING:
 118         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 119         break;
 120     case ILGDN_NORMAL:
 121         flag = SHGDN_NORMAL;
 122         break;
 123     case ILGDN_INFOLDER:
 124         flag = SHGDN_INFOLDER;
 125         break;
 126     default:
 127         FIXME("Unknown type parameter = %x\n", type);
 128         flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 129         break;
 130     }
 131
 132     if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 133     {
 134         ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 135         if (SUCCEEDED(ret))
 136         {
 137             if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 138                 ret = E_FAIL;
 139         }
 140     }
 141     else
 142     {
 143         ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 144         if (SUCCEEDED(ret))
 145         {
 146             ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 147             if (SUCCEEDED(ret))
 148             {
 149                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 150                     ret = E_FAIL;
 151             }
 152             IShellFolder_Release(psfParent);
 153         }
 154     }
 155
 156     TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 157
 158     if (!psf)
 159         IShellFolder_Release(lsf);
 160     return SUCCEEDED(ret);
 161 }
 162
 163 /*************************************************************************
 164  * ILGetDisplayNameEx        [SHELL32.186]
 165  */
 166 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 167 {
 168     TRACE_(shell)("%p %p %p %d\n", psf, pidl, path, type);
 169
 170     if (SHELL_OsIsUnicode())
 171         return ILGetDisplayNameExW(psf, pidl, path, type);
 172     return ILGetDisplayNameExA(psf, pidl, path, type);
 173 }
 174
 175 /*************************************************************************
 176  * ILGetDisplayName            [SHELL32.15]
 177  */
 178 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 179 {
 180     TRACE_(shell)("%p %p\n", pidl, path);
 181
 182     if (SHELL_OsIsUnicode())
 183         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 184     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 185 }
 186
 187 /*************************************************************************
 188  * ILFindLastID [SHELL32.16]
 189  *
 190  * NOTES
 191  *   observed: pidl=Desktop return=pidl
 192  */
 193 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 194 {
 195     LPCITEMIDLIST   pidlLast = pidl;
 196
 197     TRACE("(pidl=%p)\n",pidl);
 198
 199     if (!pidl)
 200         return NULL;
 201
 202     while (pidl->mkid.cb)
 203     {
 204         pidlLast = pidl;
 205         pidl = ILGetNext(pidl);
 206     }
 207     return (LPITEMIDLIST)pidlLast;
 208 }
 209
 210 /*************************************************************************
 211  * ILRemoveLastID [SHELL32.17]
 212  *
 213  * NOTES
 214  *   when pidl=Desktop return=FALSE
 215  */
 216 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 217 {
 218     TRACE_(shell)("pidl=%p\n",pidl);
 219
 220     if (!pidl || !pidl->mkid.cb)
 221         return 0;
 222     ILFindLastID(pidl)->mkid.cb = 0;
 223     return 1;
 224 }
 225
 226 /*************************************************************************
 227  * ILClone [SHELL32.18]
 228  *
 229  * NOTES
 230  *    duplicate an idlist
 231  */
 232 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 233 {
 234     DWORD    len;
 235     LPITEMIDLIST  newpidl;
 236
 237     if (!pidl)
 238         return NULL;
 239
 240     len = ILGetSize(pidl);
 241     newpidl = SHAlloc(len);
 242     if (newpidl)
 243         memcpy(newpidl,pidl,len);
 244
 245     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 246     pdump(pidl);
 247
 248     return newpidl;
 249 }
 250
 251 /*************************************************************************
 252  * ILCloneFirst [SHELL32.19]
 253  *
 254  * NOTES
 255  *  duplicates the first idlist of a complex pidl
 256  */
 257 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 258 {
 259     DWORD len;
 260     LPITEMIDLIST pidlNew = NULL;
 261
 262     TRACE("pidl=%p\n", pidl);
 263     pdump(pidl);
 264
 265     if (pidl)
 266     {
 267         len = pidl->mkid.cb;
 268         pidlNew = SHAlloc(len+2);
 269         if (pidlNew)
 270         {
 271             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 272
 273             if (len)
 274                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 275         }
 276     }
 277     TRACE("-- newpidl=%p\n",pidlNew);
 278
 279     return pidlNew;
 280 }
 281
 282 /*************************************************************************
 283  * ILLoadFromStream (SHELL32.26)
 284  *
 285  * NOTES
 286  *   the first two bytes are the len, the pidl is following then
 287  */
 288 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 289 {
 290     WORD        wLen = 0;
 291     DWORD       dwBytesRead;
 292     HRESULT     ret = E_FAIL;
 293
 294
 295     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 296
 297     SHFree(*ppPidl);
 298     *ppPidl = NULL;
 299
 300     IStream_AddRef (pStream);
 301
 302     if (SUCCEEDED(IStream_Read(pStream, &wLen, 2, &dwBytesRead)))
 303     {
 304         TRACE("PIDL length is %d\n", wLen);
 305         if (wLen != 0)
 306         {
 307             *ppPidl = SHAlloc (wLen);
 308             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 309             {
 310                 TRACE("Stream read OK\n");
 311                 ret = S_OK;
 312             }
 313             else
 314             {
 315                 WARN("reading pidl failed\n");
 316                 SHFree(*ppPidl);
 317                 *ppPidl = NULL;
 318             }
 319         }
 320         else
 321         {
 322             *ppPidl = NULL;
 323             ret = S_OK;
 324         }
 325     }
 326
 327     /* we are not yet fully compatible */
 328     if (*ppPidl && !pcheck(*ppPidl))
 329     {
 330         WARN("Check failed\n");
 331         SHFree(*ppPidl);
 332         *ppPidl = NULL;
 333     }
 334
 335     IStream_Release (pStream);
 336     TRACE("done\n");
 337     return ret;
 338 }
 339
 340 /*************************************************************************
 341  * ILSaveToStream (SHELL32.27)
 342  *
 343  * NOTES
 344  *   the first two bytes are the len, the pidl is following then
 345  */
 346 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 347 {
 348     WORD        wLen = 0;
 349     HRESULT        ret = E_FAIL;
 350
 351     TRACE_(shell)("%p %p\n", pStream, pPidl);
 352
 353     IStream_AddRef (pStream);
 354
 355     wLen = ILGetSize(pPidl);
 356
 357     if (SUCCEEDED(IStream_Write(pStream, &wLen, 2, NULL)))
 358     {
 359         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 360             ret = S_OK;
 361     }
 362     IStream_Release (pStream);
 363
 364     return ret;
 365 }
 366
 367 /*************************************************************************
 368  * SHILCreateFromPath        [SHELL32.28]
 369  *
 370  * Create an ItemIDList from a path
 371  *
 372  * PARAMS
 373  *  path       [I]
 374  *  ppidl      [O]
 375  *  attributes [I/O] requested attributes on call and actual attributes when
 376  *                   the function returns
 377  *
 378  * RETURNS
 379  *  NO_ERROR if successful, or an OLE errer code otherwise
 380  *
 381  * NOTES
 382  *  Wrapper for IShellFolder_ParseDisplayName().
 383  */
 384 static HRESULT SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 385 {
 386     WCHAR lpszDisplayName[MAX_PATH];
 387
 388     TRACE_(shell)("%s %p 0x%08x\n", path, ppidl, attributes ? *attributes : 0);
 389
 390     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 391         lpszDisplayName[MAX_PATH-1] = 0;
 392
 393     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 394 }
 395
 396 HRESULT SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 397 {
 398     LPSHELLFOLDER sf;
 399     DWORD pchEaten;
 400     HRESULT ret = E_FAIL;
 401
 402     TRACE_(shell)("%s %p 0x%08x\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 403
 404     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 405     {
 406         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 407         IShellFolder_Release(sf);
 408     }
 409     return ret;
 410 }
 411
 412 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 413 {
 414     if ( SHELL_OsIsUnicode())
 415         return SHILCreateFromPathW (path, ppidl, attributes);
 416     return SHILCreateFromPathA (path, ppidl, attributes);
 417 }
 418
 419 /*************************************************************************
 420  * SHCloneSpecialIDList      [SHELL32.89]
 421  *
 422  * Create an ItemIDList to one of the special folders.
 423
 424  * PARAMS
 425  *  hwndOwner    [in]
 426  *  nFolder      [in]    CSIDL_xxxxx
 427  *  fCreate      [in]    Create folder if it does not exist
 428  *
 429  * RETURNS
 430  *  Success: The newly created pidl
 431  *  Failure: NULL, if inputs are invalid.
 432  *
 433  * NOTES
 434  *  exported by ordinal.
 435  *  Caller is responsible for deallocating the returned ItemIDList with the
 436  *  shells IMalloc interface, aka ILFree.
 437  */
 438 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 439 {
 440     LPITEMIDLIST ppidl;
 441     TRACE_(shell)("(hwnd=%p,csidl=0x%x,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 442
 443     if (fCreate)
 444         nFolder |= CSIDL_FLAG_CREATE;
 445
 446     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 447     return ppidl;
 448 }
 449
 450 /*************************************************************************
 451  * ILGlobalClone             [SHELL32.20]
 452  *
 453  * Clones an ItemIDList using Alloc.
 454  *
 455  * PARAMS
 456  *  pidl       [I]   ItemIDList to clone
 457  *
 458  * RETURNS
 459  *  Newly allocated ItemIDList.
 460  *
 461  * NOTES
 462  *  exported by ordinal.
 463  */
 464 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 465 {
 466     DWORD    len;
 467     LPITEMIDLIST  newpidl;
 468
 469     if (!pidl)
 470         return NULL;
 471
 472     len = ILGetSize(pidl);
 473     newpidl = Alloc(len);
 474     if (newpidl)
 475         memcpy(newpidl,pidl,len);
 476
 477     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 478     pdump(pidl);
 479
 480     return newpidl;
 481 }
 482
 483 /*************************************************************************
 484  * ILIsEqual [SHELL32.21]
 485  *
 486  */
 487 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 488 {
 489     char    szData1[MAX_PATH];
 490     char    szData2[MAX_PATH];
 491
 492     LPCITEMIDLIST pidltemp1 = pidl1;
 493     LPCITEMIDLIST pidltemp2 = pidl2;
 494
 495     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 496
 497     /*
 498      * Explorer reads from registry directly (StreamMRU),
 499      * so we can only check here
 500      */
 501     if (!pcheck(pidl1) || !pcheck (pidl2))
 502         return FALSE;
 503
 504     pdump (pidl1);
 505     pdump (pidl2);
 506
 507     if (!pidl1 || !pidl2)
 508         return FALSE;
 509
 510     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 511     {
 512         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 513         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 514
 515         if (strcasecmp( szData1, szData2 ))
 516             return FALSE;
 517
 518         pidltemp1 = ILGetNext(pidltemp1);
 519         pidltemp2 = ILGetNext(pidltemp2);
 520     }
 521
 522     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 523         return TRUE;
 524
 525     return FALSE;
 526 }
 527
 528 /*************************************************************************
 529  * ILIsParent                [SHELL32.23]
 530  *
 531  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 532  *
 533  * PARAMS
 534  *  pidlParent [I]
 535  *  pidlChild  [I]
 536  *  bImmediate [I]   only return true if the parent is the direct parent
 537  *                   of the child
 538  *
 539  * RETURNS
 540  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 541  *  False otherwise.
 542  *
 543  * NOTES
 544  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 545  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 546  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 547  */
 548 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 549 {
 550     char    szData1[MAX_PATH];
 551     char    szData2[MAX_PATH];
 552     LPCITEMIDLIST pParent = pidlParent;
 553     LPCITEMIDLIST pChild = pidlChild;
 554
 555     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 556
 557     if (!pParent || !pChild)
 558         return FALSE;
 559
 560     while (pParent->mkid.cb && pChild->mkid.cb)
 561     {
 562         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 563         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 564
 565         if (strcasecmp( szData1, szData2 ))
 566             return FALSE;
 567
 568         pParent = ILGetNext(pParent);
 569         pChild = ILGetNext(pChild);
 570     }
 571
 572     /* child shorter or has equal length to parent */
 573     if (pParent->mkid.cb || !pChild->mkid.cb)
 574         return FALSE;
 575
 576     /* not immediate descent */
 577     if ( ILGetNext(pChild)->mkid.cb && bImmediate)
 578         return FALSE;
 579
 580     return TRUE;
 581 }
 582
 583 /*************************************************************************
 584  * ILFindChild               [SHELL32.24]
 585  *
 586  *  Compares elements from pidl1 and pidl2.
 587  *
 588  * PARAMS
 589  *  pidl1      [I]
 590  *  pidl2      [I]
 591  *
 592  * RETURNS
 593  *  pidl1 is desktop      pidl2
 594  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 595  *                        if there was at least one equal element
 596  *  pidl2 shorter pidl1   0
 597  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 598  *
 599  * NOTES
 600  *  exported by ordinal.
 601  */
 602 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 603 {
 604     char    szData1[MAX_PATH];
 605     char    szData2[MAX_PATH];
 606
 607     LPCITEMIDLIST pidltemp1 = pidl1;
 608     LPCITEMIDLIST pidltemp2 = pidl2;
 609     LPCITEMIDLIST ret=NULL;
 610
 611     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 612
 613     /* explorer reads from registry directly (StreamMRU),
 614        so we can only check here */
 615     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 616         return FALSE;
 617
 618     pdump (pidl1);
 619     pdump (pidl2);
 620
 621     if (_ILIsDesktop(pidl1))
 622     {
 623         ret = pidl2;
 624     }
 625     else
 626     {
 627         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 628         {
 629             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 630             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 631
 632             if (strcasecmp(szData1,szData2))
 633                 break;
 634
 635             pidltemp1 = ILGetNext(pidltemp1);
 636             pidltemp2 = ILGetNext(pidltemp2);
 637             ret = pidltemp2;
 638         }
 639
 640         if (pidltemp1->mkid.cb)
 641             ret = NULL; /* elements of pidl1 left*/
 642     }
 643     TRACE_(shell)("--- %p\n", ret);
 644     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 645 }
 646
 647 /*************************************************************************
 648  * ILCombine                 [SHELL32.25]
 649  *
 650  * Concatenates two complex ItemIDLists.
 651  *
 652  * PARAMS
 653  *  pidl1      [I]   first complex ItemIDLists
 654  *  pidl2      [I]   complex ItemIDLists to append
 655  *
 656  * RETURNS
 657  *  if both pidl's == NULL      NULL
 658  *  if pidl1 == NULL            cloned pidl2
 659  *  if pidl2 == NULL            cloned pidl1
 660  *  otherwise new pidl with pidl2 appended to pidl1
 661  *
 662  * NOTES
 663  *  exported by ordinal.
 664  *  Does not destroy the passed in ItemIDLists!
 665  */
 666 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 667 {
 668     DWORD    len1,len2;
 669     LPITEMIDLIST  pidlNew;
 670
 671     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 672
 673     if (!pidl1 && !pidl2) return NULL;
 674
 675     pdump (pidl1);
 676     pdump (pidl2);
 677
 678     if (!pidl1)
 679     {
 680         pidlNew = ILClone(pidl2);
 681         return pidlNew;
 682     }
 683
 684     if (!pidl2)
 685     {
 686         pidlNew = ILClone(pidl1);
 687         return pidlNew;
 688     }
 689
 690     len1  = ILGetSize(pidl1)-2;
 691     len2  = ILGetSize(pidl2);
 692     pidlNew  = SHAlloc(len1+len2);
 693
 694     if (pidlNew)
 695     {
 696         memcpy(pidlNew,pidl1,len1);
 697         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 698     }
 699
 700     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 701     return pidlNew;
 702 }
 703
 704 /*************************************************************************
 705  *  SHGetRealIDL [SHELL32.98]
 706  *
 707  * NOTES
 708  */
 709 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 710 {
 711     IDataObject* pDataObj;
 712     HRESULT hr;
 713
 714     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 715                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 716     if (SUCCEEDED(hr))
 717     {
 718         STGMEDIUM medium;
 719         FORMATETC fmt;
 720
 721         fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
 722         fmt.ptd = NULL;
 723         fmt.dwAspect = DVASPECT_CONTENT;
 724         fmt.lindex = -1;
 725         fmt.tymed = TYMED_HGLOBAL;
 726
 727         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 728
 729         IDataObject_Release(pDataObj);
 730
 731         if (SUCCEEDED(hr))
 732         {
 733             /*assert(pida->cidl==1);*/
 734             LPIDA pida = GlobalLock(medium.u.hGlobal);
 735
 736             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 737             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 738
 739             *pidlReal = ILCombine(pidl_folder, pidl_child);
 740
 741             if (!*pidlReal)
 742                 hr = E_OUTOFMEMORY;
 743
 744             GlobalUnlock(medium.u.hGlobal);
 745             GlobalFree(medium.u.hGlobal);
 746         }
 747     }
 748
 749     return hr;
 750 }
 751
 752 /*************************************************************************
 753  *  SHLogILFromFSIL [SHELL32.95]
 754  *
 755  * NOTES
 756  *  pild = CSIDL_DESKTOP    ret = 0
 757  *  pild = CSIDL_DRIVES     ret = 0
 758  */
 759 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 760 {
 761     FIXME("(pidl=%p)\n",pidl);
 762
 763     pdump(pidl);
 764
 765     return 0;
 766 }
 767
 768 /*************************************************************************
 769  * ILGetSize                 [SHELL32.152]
 770  *
 771  * Gets the byte size of an ItemIDList including zero terminator
 772  *
 773  * PARAMS
 774  *  pidl       [I]   ItemIDList
 775  *
 776  * RETURNS
 777  *  size of pidl in bytes
 778  *
 779  * NOTES
 780  *  exported by ordinal
 781  */
 782 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 783 {
 784     LPCSHITEMID si = &(pidl->mkid);
 785     UINT len=0;
 786
 787     if (pidl)
 788     {
 789         while (si->cb)
 790         {
 791             len += si->cb;
 792             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 793         }
 794         len += 2;
 795     }
 796     TRACE("pidl=%p size=%u\n",pidl, len);
 797     return len;
 798 }
 799
 800 /*************************************************************************
 801  * ILGetNext                 [SHELL32.153]
 802  *
 803  * Gets the next ItemID of an ItemIDList
 804  *
 805  * PARAMS
 806  *  pidl       [I]   ItemIDList
 807  *
 808  * RETURNS
 809  *  null -> null
 810  *  desktop -> null
 811  *  simple pidl -> pointer to 0x0000 element
 812  *
 813  * NOTES
 814  *  exported by ordinal.
 815  */
 816 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 817 {
 818     WORD len;
 819
 820     TRACE("%p\n", pidl);
 821
 822     if (pidl)
 823     {
 824         len =  pidl->mkid.cb;
 825         if (len)
 826         {
 827             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 828             TRACE("-- %p\n", pidl);
 829             return (LPITEMIDLIST)pidl;
 830         }
 831     }
 832     return NULL;
 833 }
 834
 835 /*************************************************************************
 836  * ILAppend                  [SHELL32.154]
 837  *
 838  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 839  * If bEnd is FALSE, inserts the item in the front of the list,
 840  * otherwise it adds the item to the end. (???)
 841  *
 842  * PARAMS
 843  *  pidl       [I]   ItemIDList to extend
 844  *  item       [I]   ItemID to prepend/append
 845  *  bEnd       [I]   Indicates if the item should be appended
 846  *
 847  * NOTES
 848  *  Destroys the passed in idlist! (???)
 849  */
 850 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 851 {
 852     LPITEMIDLIST idlRet;
 853
 854     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 855
 856     pdump (pidl);
 857     pdump (item);
 858
 859     if (_ILIsDesktop(pidl))
 860     {
 861         idlRet = ILClone(item);
 862         SHFree (pidl);
 863         return idlRet;
 864     }
 865
 866     if (bEnd)
 867         idlRet = ILCombine(pidl, item);
 868     else
 869         idlRet = ILCombine(item, pidl);
 870
 871     SHFree(pidl);
 872     return idlRet;
 873 }
 874
 875 /*************************************************************************
 876  * ILFree                    [SHELL32.155]
 877  *
 878  * Frees memory (if not NULL) allocated by SHMalloc allocator
 879  *
 880  * PARAMS
 881  *  pidl         [I]
 882  *
 883  * RETURNS
 884  *  Nothing
 885  *
 886  * NOTES
 887  *  exported by ordinal
 888  */
 889 void WINAPI ILFree(LPITEMIDLIST pidl)
 890 {
 891     TRACE("(pidl=%p)\n",pidl);
 892     SHFree(pidl);
 893 }
 894
 895 /*************************************************************************
 896  * ILGlobalFree              [SHELL32.156]
 897  *
 898  * Frees memory (if not NULL) allocated by Alloc allocator
 899  *
 900  * PARAMS
 901  *  pidl         [I]
 902  *
 903  * RETURNS
 904  *  Nothing
 905  *
 906  * NOTES
 907  *  exported by ordinal.
 908  */
 909 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 910 {
 911     TRACE("%p\n", pidl);
 912
 913     Free(pidl);
 914 }
 915
 916 /*************************************************************************
 917  * ILCreateFromPathA         [SHELL32.189]
 918  *
 919  * Creates a complex ItemIDList from a path and returns it.
 920  *
 921  * PARAMS
 922  *  path         [I]
 923  *
 924  * RETURNS
 925  *  the newly created complex ItemIDList or NULL if failed
 926  *
 927  * NOTES
 928  *  exported by ordinal.
 929  */
 930 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 931 {
 932     LPITEMIDLIST pidlnew = NULL;
 933
 934     TRACE_(shell)("%s\n", debugstr_a(path));
 935
 936     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 937         return pidlnew;
 938     return NULL;
 939 }
 940
 941 /*************************************************************************
 942  * ILCreateFromPathW         [SHELL32.190]
 943  *
 944  * See ILCreateFromPathA.
 945  */
 946 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 947 {
 948     LPITEMIDLIST pidlnew = NULL;
 949
 950     TRACE_(shell)("%s\n", debugstr_w(path));
 951
 952     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 953         return pidlnew;
 954     return NULL;
 955 }
 956
 957 /*************************************************************************
 958  * ILCreateFromPath          [SHELL32.157]
 959  */
 960 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 961 {
 962     if ( SHELL_OsIsUnicode())
 963         return ILCreateFromPathW (path);
 964     return ILCreateFromPathA (path);
 965 }
 966
 967 /*************************************************************************
 968  * _ILParsePathW             [internal]
 969  *
 970  * Creates an ItemIDList from a path and returns it.
 971  *
 972  * PARAMS
 973  *  path         [I]   path to parse and convert into an ItemIDList
 974  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 975  *                     Bind Data object with
 976  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 977  *                     FileSystem Bind Data object
 978  *  ppidl        [O]   the newly create ItemIDList
 979  *  prgfInOut    [I/O] requested attributes on input and actual
 980  *                     attributes on return
 981  *
 982  * RETURNS
 983  *  NO_ERROR on success or an OLE error code
 984  *
 985  * NOTES
 986  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 987  *  creates a BindContext object and assigns a FileSystem Bind Data object
 988  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 989  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 990  *  to pass data about the current path element to the next object. This
 991  *  is used to avoid having to verify the current path element on disk, so
 992  *  that creating an ItemIDList from a nonexistent path still can work.
 993  */
 994 static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 995                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 996 {
 997     LPSHELLFOLDER pSF = NULL;
 998     LPBC pBC = NULL;
 999     HRESULT ret;
1000
1001     TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
1002                                              ppidl, ppidl ? *ppidl : NULL,
1003                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1004
1005     ret = SHGetDesktopFolder(&pSF);
1006     if (FAILED(ret))
1007         return ret;
1008
1009     if (lpFindFile || bBindCtx)
1010         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1011
1012     if (SUCCEEDED(ret))
1013     {
1014         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1015     }
1016
1017     if (pBC)
1018     {
1019         IBindCtx_Release(pBC);
1020         pBC = NULL;
1021     }
1022
1023     IShellFolder_Release(pSF);
1024
1025     if (FAILED(ret) && ppidl)
1026         *ppidl = NULL;
1027
1028     TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1029
1030     return ret;
1031 }
1032
1033 /*************************************************************************
1034  * SHSimpleIDListFromPath    [SHELL32.162]
1035  *
1036  * Creates a simple ItemIDList from a path and returns it. This function
1037  * does not fail on nonexistent paths.
1038  *
1039  * PARAMS
1040  *  path         [I]   path to parse and convert into an ItemIDList
1041  *
1042  * RETURNS
1043  *  the newly created simple ItemIDList
1044  *
1045  * NOTES
1046  *  Simple in the name does not mean a relative ItemIDList but rather a
1047  *  fully qualified list, where only the file name is filled in and the
1048  *  directory flag for those ItemID elements this is known about, eg.
1049  *  it is not the last element in the ItemIDList or the actual directory
1050  *  exists on disk.
1051  *  exported by ordinal.
1052  */
1053 LPITEMIDLIST SHSimpleIDListFromPathA(LPCSTR lpszPath)
1054 {
1055     LPITEMIDLIST pidl = NULL;
1056     LPWSTR wPath = NULL;
1057     int len;
1058
1059     TRACE("%s\n", debugstr_a(lpszPath));
1060
1061     if (lpszPath)
1062     {
1063         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1064         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1065         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1066     }
1067
1068     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1069
1070     HeapFree(GetProcessHeap(), 0, wPath);
1071     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1072     return pidl;
1073 }
1074
1075 LPITEMIDLIST SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1076 {
1077     LPITEMIDLIST pidl = NULL;
1078
1079     TRACE("%s\n", debugstr_w(lpszPath));
1080
1081     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1082     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1083     return pidl;
1084 }
1085
1086 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1087 {
1088     if ( SHELL_OsIsUnicode())
1089         return SHSimpleIDListFromPathW (lpszPath);
1090     return SHSimpleIDListFromPathA (lpszPath);
1091 }
1092
1093 /*************************************************************************
1094  * SHGetDataFromIDListA [SHELL32.247]
1095  *
1096  * NOTES
1097  *  the pidl can be a simple one. since we can't get the path out of the pidl
1098  *  we have to take all data from the pidl
1099  */
1100 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1101                                     int nFormat, LPVOID dest, int len)
1102 {
1103     LPSTR filename, shortname;
1104     WIN32_FIND_DATAA * pfd;
1105
1106     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1107
1108     pdump(pidl);
1109     if (!psf || !dest)
1110         return E_INVALIDARG;
1111
1112     switch (nFormat)
1113     {
1114     case SHGDFIL_FINDDATA:
1115         pfd = dest;
1116
1117         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1118             return E_INVALIDARG;
1119
1120         if (len < sizeof(WIN32_FIND_DATAA))
1121             return E_INVALIDARG;
1122
1123         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1124         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1125         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1126         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1127
1128         filename = _ILGetTextPointer(pidl);
1129         shortname = _ILGetSTextPointer(pidl);
1130
1131         if (filename)
1132             lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
1133         else
1134             pfd->cFileName[0] = '\0';
1135
1136         if (shortname)
1137             lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
1138         else
1139             pfd->cAlternateFileName[0] = '\0';
1140         return NOERROR;
1141
1142     case SHGDFIL_NETRESOURCE:
1143     case SHGDFIL_DESCRIPTIONID:
1144         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1145         break;
1146
1147     default:
1148         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1149     }
1150
1151     return E_INVALIDARG;
1152 }
1153
1154 /*************************************************************************
1155  * SHGetDataFromIDListW [SHELL32.248]
1156  *
1157  */
1158 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1159                                     int nFormat, LPVOID dest, int len)
1160 {
1161     LPSTR filename, shortname;
1162     WIN32_FIND_DATAW * pfd = dest;
1163
1164     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1165
1166     pdump(pidl);
1167
1168     if (!psf || !dest)
1169         return E_INVALIDARG;
1170
1171     switch (nFormat)
1172     {
1173     case SHGDFIL_FINDDATA:
1174         pfd = dest;
1175
1176         if (_ILIsDrive(pidl))
1177             return E_INVALIDARG;
1178
1179         if (len < sizeof(WIN32_FIND_DATAW))
1180             return E_INVALIDARG;
1181
1182         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1183         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1184         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1185         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1186
1187         filename = _ILGetTextPointer(pidl);
1188         shortname = _ILGetSTextPointer(pidl);
1189
1190         if (!filename)
1191             pfd->cFileName[0] = '\0';
1192         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1193             pfd->cFileName[MAX_PATH-1] = 0;
1194
1195         if (!shortname)
1196             pfd->cAlternateFileName[0] = '\0';
1197         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1198             pfd->cAlternateFileName[13] = 0;
1199         return NOERROR;
1200
1201     case SHGDFIL_NETRESOURCE:
1202     case SHGDFIL_DESCRIPTIONID:
1203         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1204         break;
1205
1206     default:
1207         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1208     }
1209
1210     return E_INVALIDARG;
1211 }
1212
1213 /*************************************************************************
1214  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1215  *
1216  * PARAMETERS
1217  *  pidl,   [IN] pidl
1218  *  pszPath [OUT] path
1219  *
1220  * RETURNS
1221  *  path from a passed PIDL.
1222  *
1223  * NOTES
1224  *    NULL returns FALSE
1225  *    desktop pidl gives path to desktop directory back
1226  *    special pidls returning FALSE
1227  */
1228 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1229 {
1230     WCHAR wszPath[MAX_PATH];
1231     BOOL bSuccess;
1232
1233     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1234     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1235
1236     return bSuccess;
1237 }
1238
1239 /*************************************************************************
1240  * SHGetPathFromIDListW             [SHELL32.@]
1241  *
1242  * See SHGetPathFromIDListA.
1243  */
1244 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1245 {
1246     HRESULT hr;
1247     LPCITEMIDLIST pidlLast;
1248     LPSHELLFOLDER psfFolder;
1249     DWORD dwAttributes;
1250     STRRET strret;
1251
1252     TRACE_(shell)("(pidl=%p,%p)\n", pidl, pszPath);
1253     pdump(pidl);
1254
1255     *pszPath = '\0';
1256     if (!pidl)
1257         return FALSE;
1258
1259     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1260     if (FAILED(hr)) return FALSE;
1261
1262     dwAttributes = SFGAO_FILESYSTEM;
1263     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1264     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1265         IShellFolder_Release(psfFolder);
1266         return FALSE;
1267     }
1268
1269     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1270     IShellFolder_Release(psfFolder);
1271     if (FAILED(hr)) return FALSE;
1272
1273     hr = StrRetToBufW(&strret, pidlLast, pszPath, MAX_PATH);
1274
1275     TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(pszPath), hr);
1276     return SUCCEEDED(hr);
1277 }
1278
1279 /*************************************************************************
1280  *    SHBindToParent        [shell version 5.0]
1281  */
1282 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1283 {
1284     IShellFolder    * psfDesktop;
1285     HRESULT         hr=E_FAIL;
1286
1287     TRACE_(shell)("pidl=%p\n", pidl);
1288     pdump(pidl);
1289
1290     if (!pidl || !ppv)
1291         return E_INVALIDARG;
1292
1293     *ppv = NULL;
1294     if (ppidlLast)
1295         *ppidlLast = NULL;
1296
1297     hr = SHGetDesktopFolder(&psfDesktop);
1298     if (FAILED(hr))
1299         return hr;
1300
1301     if (_ILIsPidlSimple(pidl))
1302     {
1303         /* we are on desktop level */
1304         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1305     }
1306     else
1307     {
1308         LPITEMIDLIST pidlParent = ILClone(pidl);
1309         ILRemoveLastID(pidlParent);
1310         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1311         SHFree (pidlParent);
1312     }
1313
1314     IShellFolder_Release(psfDesktop);
1315
1316     if (SUCCEEDED(hr) && ppidlLast)
1317         *ppidlLast = ILFindLastID(pidl);
1318
1319     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1320     return hr;
1321 }
1322
1323 /*************************************************************************
1324  * SHParseDisplayName             [SHELL32.@]
1325  */
1326 HRESULT WINAPI SHParseDisplayName(LPCWSTR name, IBindCtx *bindctx, LPITEMIDLIST *pidlist,
1327                                   SFGAOF attr_in, SFGAOF *attr_out)
1328 {
1329     IShellFolder *desktop;
1330     HRESULT hr;
1331
1332     TRACE("%s %p %p %d %p\n", debugstr_w(name), bindctx, pidlist, attr_in, attr_out);
1333
1334     *pidlist = NULL;
1335
1336     if (!name) return E_INVALIDARG;
1337
1338     hr = SHGetDesktopFolder(&desktop);
1339     if (hr != S_OK) return hr;
1340
1341     hr = IShellFolder_ParseDisplayName(desktop, NULL, bindctx, (LPWSTR)name, NULL, pidlist, &attr_in);
1342     if (attr_out) *attr_out = attr_in;
1343
1344     IShellFolder_Release(desktop);
1345
1346     return hr;
1347 }
1348
1349 /**************************************************************************
1350  *
1351  *        internal functions
1352  *
1353  *    ### 1. section creating pidls ###
1354  *
1355  *************************************************************************
1356  */
1357
1358 /* Basic PIDL constructor.  Allocates size + 5 bytes, where:
1359  * - two bytes are SHITEMID.cb
1360  * - one byte is PIDLDATA.type
1361  * - two bytes are the NULL PIDL terminator
1362  * Sets type of the returned PIDL to type.
1363  */
1364 static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1365 {
1366     LPITEMIDLIST pidlOut = NULL;
1367
1368     pidlOut = SHAlloc(size + 5);
1369     if(pidlOut)
1370     {
1371         LPPIDLDATA pData;
1372         LPITEMIDLIST pidlNext;
1373
1374         ZeroMemory(pidlOut, size + 5);
1375         pidlOut->mkid.cb = size + 3;
1376
1377         pData = _ILGetDataPointer(pidlOut);
1378         if (pData)
1379             pData->type = type;
1380
1381         pidlNext = ILGetNext(pidlOut);
1382         if (pidlNext)
1383             pidlNext->mkid.cb = 0x00;
1384         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1385     }
1386
1387     return pidlOut;
1388 }
1389
1390 LPITEMIDLIST _ILCreateDesktop(void)
1391 {
1392     LPITEMIDLIST ret;
1393
1394     TRACE("()\n");
1395     ret = SHAlloc(2);
1396     if (ret)
1397         ret->mkid.cb = 0;
1398     return ret;
1399 }
1400
1401 LPITEMIDLIST _ILCreateMyComputer(void)
1402 {
1403     TRACE("()\n");
1404     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1405 }
1406
1407 LPITEMIDLIST _ILCreateMyDocuments(void)
1408 {
1409     TRACE("()\n");
1410     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1411 }
1412
1413 LPITEMIDLIST _ILCreateIExplore(void)
1414 {
1415     TRACE("()\n");
1416     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1417 }
1418
1419 LPITEMIDLIST _ILCreateControlPanel(void)
1420 {
1421     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1422
1423     TRACE("()\n");
1424     if (parent)
1425     {
1426         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1427
1428         if (cpl)
1429         {
1430             ret = ILCombine(parent, cpl);
1431             SHFree(cpl);
1432         }
1433         SHFree(parent);
1434     }
1435     return ret;
1436 }
1437
1438 LPITEMIDLIST _ILCreatePrinters(void)
1439 {
1440     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1441
1442     TRACE("()\n");
1443     if (parent)
1444     {
1445         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1446
1447         if (printers)
1448         {
1449             ret = ILCombine(parent, printers);
1450             SHFree(printers);
1451         }
1452         SHFree(parent);
1453     }
1454     return ret;
1455 }
1456
1457 LPITEMIDLIST _ILCreateNetwork(void)
1458 {
1459     TRACE("()\n");
1460     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1461 }
1462
1463 LPITEMIDLIST _ILCreateBitBucket(void)
1464 {
1465     TRACE("()\n");
1466     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1467 }
1468
1469 LPITEMIDLIST _ILCreateNetHood(void)
1470 {
1471     TRACE("()\n");
1472     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1473 }
1474
1475 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1476 {
1477     LPITEMIDLIST pidlOut;
1478
1479     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1480     {
1481         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1482         if (pidlOut)
1483         {
1484             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1485
1486             pData->u.guid.guid = *guid;
1487             TRACE("-- create GUID-pidl %s\n",
1488                   debugstr_guid(&(pData->u.guid.guid)));
1489         }
1490     }
1491     else
1492     {
1493         WARN("%d: invalid type for GUID\n", type);
1494         pidlOut = NULL;
1495     }
1496     return pidlOut;
1497 }
1498
1499 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1500 {
1501     IID iid;
1502
1503     if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
1504     {
1505         ERR("%s is not a GUID\n", szGUID);
1506         return NULL;
1507     }
1508     return _ILCreateGuid(PT_GUID, &iid);
1509 }
1510
1511 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1512 {
1513     IID iid;
1514
1515     if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
1516     {
1517         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1518         return NULL;
1519     }
1520     return _ILCreateGuid(PT_GUID, &iid);
1521 }
1522
1523 LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
1524 {
1525     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1526     DWORD   len, len1, wlen, alen;
1527     LPITEMIDLIST pidl;
1528     PIDLTYPE type;
1529
1530     if (!wfd)
1531         return NULL;
1532
1533     TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
1534
1535     /* prepare buffer with both names */
1536     len = WideCharToMultiByte(CP_ACP,0,wfd->cFileName,-1,buff,MAX_PATH,NULL,NULL);
1537     len1 = WideCharToMultiByte(CP_ACP,0,wfd->cAlternateFileName,-1, buff+len, sizeof(buff)-len, NULL, NULL);
1538     alen = len + len1;
1539
1540     type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1541
1542     wlen = lstrlenW(wfd->cFileName) + 1;
1543     pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
1544                     FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
1545     if (pidl)
1546     {
1547         LPPIDLDATA pData = _ILGetDataPointer(pidl);
1548         FileStruct *fs = &pData->u.file;
1549         FileStructW *fsw;
1550         WORD *pOffsetW;
1551
1552         FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
1553         fs->dwFileSize = wfd->nFileSizeLow;
1554         fs->uFileAttribs = wfd->dwFileAttributes;
1555         memcpy(fs->szNames, buff, alen);
1556
1557         fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
1558         fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
1559         FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
1560         FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
1561         memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
1562
1563         pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1564         *pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
1565         TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
1566     }
1567     return pidl;
1568
1569 }
1570
1571 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1572 {
1573     HANDLE hFile;
1574     WIN32_FIND_DATAW stffile;
1575
1576     if (!ppidl)
1577         return E_INVALIDARG;
1578
1579     hFile = FindFirstFileW(szPath, &stffile);
1580     if (hFile == INVALID_HANDLE_VALUE)
1581         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1582
1583     FindClose(hFile);
1584
1585     *ppidl = _ILCreateFromFindDataW(&stffile);
1586
1587     return *ppidl ? S_OK : E_OUTOFMEMORY;
1588 }
1589
1590 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1591 {
1592     LPITEMIDLIST pidlOut;
1593
1594     TRACE("(%s)\n",debugstr_w(lpszNew));
1595
1596     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1597     if (pidlOut)
1598     {
1599         LPSTR pszDest;
1600
1601         pszDest = _ILGetTextPointer(pidlOut);
1602         if (pszDest)
1603         {
1604             strcpy(pszDest, "x:\\");
1605             pszDest[0]=toupperW(lpszNew[0]);
1606             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1607         }
1608     }
1609     return pidlOut;
1610 }
1611
1612 LPITEMIDLIST _ILCreateEntireNetwork(void)
1613 {
1614     LPITEMIDLIST pidlOut;
1615
1616     TRACE("\n");
1617
1618     pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
1619     if (pidlOut)
1620     {
1621         LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1622
1623         pData->u.network.dummy = 0;
1624         strcpy(pData->u.network.szNames, "Entire Network");
1625     }
1626     return pidlOut;
1627 }
1628
1629 /**************************************************************************
1630  *  _ILGetDrive()
1631  *
1632  *  Gets the text for the drive eg. 'c:\'
1633  *
1634  * RETURNS
1635  *  strlen (lpszText)
1636  */
1637 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1638 {
1639     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1640
1641     if(_ILIsMyComputer(pidl))
1642         pidl = ILGetNext(pidl);
1643
1644     if (pidl && _ILIsDrive(pidl))
1645         return _ILSimpleGetText(pidl, pOut, uSize);
1646
1647     return 0;
1648 }
1649
1650 /**************************************************************************
1651  *
1652  *    ### 2. section testing pidls ###
1653  *
1654  **************************************************************************
1655  *  _ILIsUnicode()
1656  *  _ILIsDesktop()
1657  *  _ILIsMyComputer()
1658  *  _ILIsSpecialFolder()
1659  *  _ILIsDrive()
1660  *  _ILIsFolder()
1661  *  _ILIsValue()
1662  *  _ILIsPidlSimple()
1663  */
1664 BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
1665 {
1666     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1667
1668     TRACE("(%p)\n",pidl);
1669
1670     return (pidl && lpPData && PT_VALUEW == lpPData->type);
1671 }
1672
1673 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1674 {
1675     TRACE("(%p)\n",pidl);
1676
1677     return pidl && pidl->mkid.cb  ? 0 : 1;
1678 }
1679
1680 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1681 {
1682     REFIID iid = _ILGetGUIDPointer(pidl);
1683
1684     TRACE("(%p)\n",pidl);
1685
1686     if (iid)
1687         return IsEqualIID(iid, &CLSID_MyComputer);
1688     return FALSE;
1689 }
1690
1691 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1692 {
1693     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1694
1695     TRACE("(%p)\n",pidl);
1696
1697     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1698               (pidl && pidl->mkid.cb == 0x00)
1699             ));
1700 }
1701
1702 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1703 {
1704     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1705
1706     TRACE("(%p)\n",pidl);
1707
1708     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1709                     PT_DRIVE1 == lpPData->type ||
1710                     PT_DRIVE2 == lpPData->type ||
1711                     PT_DRIVE3 == lpPData->type));
1712 }
1713
1714 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1715 {
1716     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1717
1718     TRACE("(%p)\n",pidl);
1719
1720     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1721 }
1722
1723 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1724 {
1725     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1726
1727     TRACE("(%p)\n",pidl);
1728
1729     return (pidl && lpPData && PT_VALUE == lpPData->type);
1730 }
1731
1732 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1733 {
1734     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1735
1736     TRACE("(%p)\n",pidl);
1737
1738     return (pidl && lpPData && (lpPData->type == 0));
1739 }
1740
1741 /**************************************************************************
1742  *    _ILIsPidlSimple
1743  */
1744 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1745 {
1746     BOOL ret = TRUE;
1747
1748     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1749     {
1750         WORD len = pidl->mkid.cb;
1751         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1752
1753         if (pidlnext->mkid.cb)
1754             ret = FALSE;
1755     }
1756
1757     TRACE("%s\n", ret ? "Yes" : "No");
1758     return ret;
1759 }
1760
1761 /**************************************************************************
1762  *
1763  *    ### 3. section getting values from pidls ###
1764  */
1765
1766  /**************************************************************************
1767  *  _ILSimpleGetText
1768  *
1769  * gets the text for the first item in the pidl (eg. simple pidl)
1770  *
1771  * returns the length of the string
1772  */
1773 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1774 {
1775     DWORD        dwReturn=0;
1776     LPSTR        szSrc;
1777     LPWSTR       szSrcW;
1778     GUID const * riid;
1779     char szTemp[MAX_PATH];
1780
1781     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1782
1783     if (!pidl)
1784         return 0;
1785
1786     if (szOut)
1787         *szOut = 0;
1788
1789     if (_ILIsDesktop(pidl))
1790     {
1791         /* desktop */
1792         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1793         {
1794             if (szOut)
1795                 lstrcpynA(szOut, szTemp, uOutSize);
1796
1797             dwReturn = strlen (szTemp);
1798         }
1799     }
1800     else if (( szSrc = _ILGetTextPointer(pidl) ))
1801     {
1802         /* filesystem */
1803         if (szOut)
1804             lstrcpynA(szOut, szSrc, uOutSize);
1805
1806         dwReturn = strlen(szSrc);
1807     }
1808     else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1809     {
1810         /* unicode filesystem */
1811         WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
1812
1813         if (szOut)
1814             lstrcpynA(szOut, szTemp, uOutSize);
1815
1816         dwReturn = strlen (szTemp);
1817     }
1818     else if (( riid = _ILGetGUIDPointer(pidl) ))
1819     {
1820         /* special folder */
1821         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1822         {
1823             if (szOut)
1824                 lstrcpynA(szOut, szTemp, uOutSize);
1825
1826             dwReturn = strlen (szTemp);
1827         }
1828     }
1829     else
1830     {
1831         ERR("-- no text\n");
1832     }
1833
1834     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
1835     return dwReturn;
1836 }
1837
1838  /**************************************************************************
1839  *  _ILSimpleGetTextW
1840  *
1841  * gets the text for the first item in the pidl (eg. simple pidl)
1842  *
1843  * returns the length of the string
1844  */
1845 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1846 {
1847     DWORD   dwReturn;
1848     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
1849
1850     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1851
1852     if (pFileStructW) {
1853         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
1854         dwReturn = lstrlenW(pFileStructW->wszName);
1855     } else {
1856         GUID const * riid;
1857         WCHAR szTemp[MAX_PATH];
1858         LPSTR szSrc;
1859         LPWSTR szSrcW;
1860         dwReturn=0;
1861
1862         if (!pidl)
1863             return 0;
1864
1865         if (szOut)
1866             *szOut = 0;
1867
1868         if (_ILIsDesktop(pidl))
1869         {
1870             /* desktop */
1871             if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1872             {
1873                 if (szOut)
1874                     lstrcpynW(szOut, szTemp, uOutSize);
1875
1876                 dwReturn = lstrlenW (szTemp);
1877             }
1878         }
1879         else if (( szSrcW = _ILGetTextPointerW(pidl) ))
1880         {
1881             /* unicode filesystem */
1882             if (szOut)
1883                 lstrcpynW(szOut, szSrcW, uOutSize);
1884
1885             dwReturn = lstrlenW(szSrcW);
1886         }
1887         else if (( szSrc = _ILGetTextPointer(pidl) ))
1888         {
1889             /* filesystem */
1890             MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
1891
1892             if (szOut)
1893                 lstrcpynW(szOut, szTemp, uOutSize);
1894
1895             dwReturn = lstrlenW (szTemp);
1896         }
1897         else if (( riid = _ILGetGUIDPointer(pidl) ))
1898         {
1899             /* special folder */
1900             if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
1901             {
1902                 if (szOut)
1903                     lstrcpynW(szOut, szTemp, uOutSize);
1904
1905                 dwReturn = lstrlenW (szTemp);
1906             }
1907         }
1908         else
1909         {
1910             ERR("-- no text\n");
1911         }
1912     }
1913
1914     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
1915     return dwReturn;
1916 }
1917
1918 /**************************************************************************
1919  *
1920  *    ### 4. getting pointers to parts of pidls ###
1921  *
1922  **************************************************************************
1923  *  _ILGetDataPointer()
1924  */
1925 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1926 {
1927     if(pidl && pidl->mkid.cb != 0x00)
1928         return (LPPIDLDATA)pidl->mkid.abID;
1929     return NULL;
1930 }
1931
1932 /**************************************************************************
1933  *  _ILGetTextPointerW()
1934  * gets a pointer to the unicode long filename string stored in the pidl
1935  */
1936 static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
1937 {
1938     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
1939
1940     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1941
1942     if (!pdata)
1943         return NULL;
1944
1945     switch (pdata->type)
1946     {
1947     case PT_GUID:
1948     case PT_SHELLEXT:
1949     case PT_YAGUID:
1950         return NULL;
1951
1952     case PT_DRIVE:
1953     case PT_DRIVE1:
1954     case PT_DRIVE2:
1955     case PT_DRIVE3:
1956         /*return (LPSTR)&(pdata->u.drive.szDriveName);*/
1957         return NULL;
1958
1959     case PT_FOLDER:
1960     case PT_FOLDER1:
1961     case PT_VALUE:
1962     case PT_IESPECIAL1:
1963     case PT_IESPECIAL2:
1964         /*return (LPSTR)&(pdata->u.file.szNames);*/
1965         return NULL;
1966
1967     case PT_WORKGRP:
1968     case PT_COMP:
1969     case PT_NETWORK:
1970     case PT_NETPROVIDER:
1971     case PT_SHARE:
1972         /*return (LPSTR)&(pdata->u.network.szNames);*/
1973         return NULL;
1974
1975     case PT_VALUEW:
1976         return (LPWSTR)pdata->u.file.szNames;
1977     }
1978     return NULL;
1979 }
1980
1981
1982 /**************************************************************************
1983  *  _ILGetTextPointer()
1984  * gets a pointer to the long filename string stored in the pidl
1985  */
1986 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1987 {
1988     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
1989
1990     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1991
1992     if (!pdata)
1993         return NULL;
1994
1995     switch (pdata->type)
1996     {
1997     case PT_GUID:
1998     case PT_SHELLEXT:
1999     case PT_YAGUID:
2000         return NULL;
2001
2002     case PT_DRIVE:
2003     case PT_DRIVE1:
2004     case PT_DRIVE2:
2005     case PT_DRIVE3:
2006         return pdata->u.drive.szDriveName;
2007
2008     case PT_FOLDER:
2009     case PT_FOLDER1:
2010     case PT_VALUE:
2011     case PT_IESPECIAL1:
2012     case PT_IESPECIAL2:
2013         return pdata->u.file.szNames;
2014
2015     case PT_WORKGRP:
2016     case PT_COMP:
2017     case PT_NETWORK:
2018     case PT_NETPROVIDER:
2019     case PT_SHARE:
2020         return pdata->u.network.szNames;
2021     }
2022     return NULL;
2023 }
2024
2025 /**************************************************************************
2026  *  _ILGetSTextPointer()
2027  * gets a pointer to the short filename string stored in the pidl
2028  */
2029 static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2030 {
2031     /* TRACE(pidl,"(pidl%p)\n", pidl); */
2032
2033     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2034
2035     if (!pdata)
2036         return NULL;
2037
2038     switch (pdata->type)
2039     {
2040     case PT_FOLDER:
2041     case PT_VALUE:
2042     case PT_IESPECIAL1:
2043     case PT_IESPECIAL2:
2044         return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
2045
2046     case PT_WORKGRP:
2047         return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
2048     }
2049     return NULL;
2050 }
2051
2052 /**************************************************************************
2053  * _ILGetGUIDPointer()
2054  *
2055  * returns reference to guid stored in some pidls
2056  */
2057 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2058 {
2059     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2060
2061     TRACE("%p\n", pidl);
2062
2063     if (!pdata)
2064         return NULL;
2065
2066     TRACE("pdata->type 0x%04x\n", pdata->type);
2067     switch (pdata->type)
2068     {
2069     case PT_SHELLEXT:
2070     case PT_GUID:
2071     case PT_YAGUID:
2072         return &(pdata->u.guid.guid);
2073
2074     default:
2075         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2076         break;
2077     }
2078     return NULL;
2079 }
2080
2081 /******************************************************************************
2082  * _ILGetFileStructW [Internal]
2083  *
2084  * Get pointer the a SHITEMID's FileStructW field if present
2085  *
2086  * PARAMS
2087  *  pidl [I] The SHITEMID
2088  *
2089  * RETURNS
2090  *  Success: Pointer to pidl's FileStructW field.
2091  *  Failure: NULL
2092  */
2093 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
2094     FileStructW *pFileStructW;
2095     WORD cbOffset;
2096
2097     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
2098         return NULL;
2099
2100     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
2101     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
2102
2103     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
2104      * style with a FileStructW member. If we switch all our shellfolder-implementations to
2105      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
2106     if (cbOffset & 0x1 || /* FileStructW member is word aligned in the pidl */
2107         /* FileStructW is positioned after FileStruct */
2108         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
2109         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
2110         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
2111         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
2112     {
2113         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
2114         return NULL;
2115     }
2116
2117     return pFileStructW;
2118 }
2119
2120 /*************************************************************************
2121  * _ILGetFileDateTime
2122  *
2123  * Given the ItemIdList, get the FileTime
2124  *
2125  * PARAMS
2126  *      pidl        [I] The ItemIDList
2127  *      pFt         [I] the resulted FILETIME of the file
2128  *
2129  * RETURNS
2130  *     True if Successful
2131  *
2132  * NOTES
2133  *
2134  */
2135 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2136 {
2137     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2138
2139     if (!pdata)
2140         return FALSE;
2141
2142     switch (pdata->type)
2143     {
2144     case PT_FOLDER:
2145     case PT_VALUE:
2146         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2147         break;
2148     default:
2149         return FALSE;
2150     }
2151     return TRUE;
2152 }
2153
2154 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2155 {
2156     FILETIME ft,lft;
2157     SYSTEMTIME time;
2158     BOOL ret;
2159
2160     if (_ILGetFileDateTime( pidl, &ft ))
2161     {
2162         FileTimeToLocalFileTime(&ft, &lft);
2163         FileTimeToSystemTime (&lft, &time);
2164
2165         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2166         if (ret)
2167         {
2168             /* Append space + time without seconds */
2169             pOut[ret-1] = ' ';
2170             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2171         }
2172     }
2173     else
2174     {
2175         pOut[0] = '\0';
2176         ret = FALSE;
2177     }
2178     return ret;
2179 }
2180
2181 /*************************************************************************
2182  * _ILGetFileSize
2183  *
2184  * Given the ItemIdList, get the FileSize
2185  *
2186  * PARAMS
2187  *    pidl     [I] The ItemIDList
2188  *    pOut     [I] The buffer to save the result
2189  *    uOutsize [I] The size of the buffer
2190  *
2191  * RETURNS
2192  *    The FileSize
2193  *
2194  * NOTES
2195  *    pOut can be null when no string is needed
2196  *
2197  */
2198 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2199 {
2200     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2201     DWORD dwSize;
2202
2203     if (!pdata)
2204         return 0;
2205
2206     switch (pdata->type)
2207     {
2208     case PT_VALUE:
2209         dwSize = pdata->u.file.dwFileSize;
2210         if (pOut)
2211             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2212         return dwSize;
2213     }
2214     if (pOut)
2215         *pOut = 0x00;
2216     return 0;
2217 }
2218
2219 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2220 {
2221     char szTemp[MAX_PATH];
2222     const char * pPoint;
2223     LPCITEMIDLIST  pidlTemp=pidl;
2224
2225     TRACE("pidl=%p\n",pidl);
2226
2227     if (!pidl)
2228         return FALSE;
2229
2230     pidlTemp = ILFindLastID(pidl);
2231
2232     if (!_ILIsValue(pidlTemp))
2233         return FALSE;
2234     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2235         return FALSE;
2236
2237     pPoint = PathFindExtensionA(szTemp);
2238
2239     if (!*pPoint)
2240         return FALSE;
2241
2242     pPoint++;
2243     lstrcpynA(pOut, pPoint, uOutSize);
2244     TRACE("%s\n",pOut);
2245
2246     return TRUE;
2247 }
2248
2249 /*************************************************************************
2250  * _ILGetFileType
2251  *
2252  * Given the ItemIdList, get the file type description
2253  *
2254  * PARAMS
2255  *      pidl        [I] The ItemIDList (simple)
2256  *      pOut        [I] The buffer to save the result
2257  *      uOutsize    [I] The size of the buffer
2258  *
2259  * RETURNS
2260  *    nothing
2261  *
2262  * NOTES
2263  *    This function copies as much as possible into the buffer.
2264  */
2265 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2266 {
2267     if(_ILIsValue(pidl))
2268     {
2269         char sTemp[64];
2270
2271         if(uOutSize > 0)
2272             pOut[0] = 0;
2273         if (_ILGetExtension (pidl, sTemp, 64))
2274         {
2275             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2276                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2277             {
2278                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2279                 strcat (pOut, "-file");
2280             }
2281         }
2282     }
2283     else
2284         lstrcpynA(pOut, "Folder", uOutSize);
2285 }
2286
2287 /*************************************************************************
2288  * _ILGetFileAttributes
2289  *
2290  * Given the ItemIdList, get the Attrib string format
2291  *
2292  * PARAMS
2293  *      pidl        [I] The ItemIDList
2294  *      pOut        [I] The buffer to save the result
2295  *      uOutsize    [I] The size of the Buffer
2296  *
2297  * RETURNS
2298  *     Attributes
2299  *
2300  * FIXME
2301  *  return value 0 in case of error is a valid return value
2302  *
2303  */
2304 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2305 {
2306     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2307     WORD wAttrib = 0;
2308     int i;
2309
2310     if (!pData)
2311         return 0;
2312
2313     switch(pData->type)
2314     {
2315     case PT_FOLDER:
2316     case PT_VALUE:
2317         wAttrib = pData->u.file.uFileAttribs;
2318         break;
2319     }
2320
2321     if(uOutSize >= 6)
2322     {
2323         i=0;
2324         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2325             pOut[i++] = 'R';
2326         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2327             pOut[i++] = 'H';
2328         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2329             pOut[i++] = 'S';
2330         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2331             pOut[i++] = 'A';
2332         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2333             pOut[i++] = 'C';
2334         pOut[i] = 0x00;
2335     }
2336     return wAttrib;
2337 }
2338
2339 /*************************************************************************
2340  * ILFreeaPidl
2341  *
2342  * free a aPidl struct
2343  */
2344 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2345 {
2346     UINT   i;
2347
2348     if (apidl)
2349     {
2350         for (i = 0; i < cidl; i++)
2351             SHFree(apidl[i]);
2352         SHFree(apidl);
2353     }
2354 }
2355
2356 /*************************************************************************
2357  * ILCopyaPidl
2358  *
2359  * copies an aPidl struct
2360  */
2361 LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
2362 {
2363     UINT i;
2364     LPITEMIDLIST *apidldest;
2365
2366     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2367     if (!apidlsrc)
2368         return NULL;
2369
2370     for (i = 0; i < cidl; i++)
2371         apidldest[i] = ILClone(apidlsrc[i]);
2372
2373     return apidldest;
2374 }
2375
2376 /*************************************************************************
2377  * _ILCopyCidaToaPidl
2378  *
2379  * creates aPidl from CIDA
2380  */
2381 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
2382 {
2383     UINT i;
2384     LPITEMIDLIST *dst;
2385
2386     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2387     if (!dst)
2388         return NULL;
2389
2390     if (pidl)
2391         *pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
2392
2393     for (i = 0; i < cida->cidl; i++)
2394         dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
2395
2396     return dst;
2397 }