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 "shellapi.h"
  47 #include "shlwapi.h"
  48
  49 #include "pidl.h"
  50 #include "wine/debug.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  53 WINE_DECLARE_DEBUG_CHANNEL(shell);
  54
  55 /* from comctl32.dll */
  56 extern LPVOID WINAPI Alloc(INT);
  57 extern BOOL WINAPI Free(LPVOID);
  58
  59 /*************************************************************************
  60  * ILGetDisplayNameEx        [SHELL32.186]
  61  *
  62  * Retrieves the display name of an ItemIDList
  63  *
  64  * PARAMS
  65  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  66  *  pidl       [I]   ItemIDList relativ to the psf to get the display name for
  67  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  68  *  type       [I]   Type of display name to retrieve
  69  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  70  *                    1 = SHGDN_NORMAL relative to the root folder
  71  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  72  *
  73  * RETURNS
  74  *  True if the display name could be retrieved successfully, False otherwise
  75  */
  76 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  77 {
  78     BOOL ret = FALSE;
  79     WCHAR wPath[MAX_PATH];
  80
  81     TRACE("%p %p %p %ld\n", psf, pidl, path, type);
  82
  83     if (!pidl || !path)
  84         return FALSE;
  85
  86     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  87     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  88     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  89
  90     return ret;
  91 }
  92
  93 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  94 {
  95     LPSHELLFOLDER psfParent, lsf = psf;
  96     HRESULT ret = NO_ERROR;
  97     LPCITEMIDLIST pidllast;
  98     STRRET strret;
  99     DWORD flag;
 100
 101     TRACE("%p %p %p %ld\n", psf, pidl, path, type);
 102
 103     if (!pidl || !path)
 104         return FALSE;
 105
 106     if (!lsf)
 107     {
 108         ret = SHGetDesktopFolder(&lsf);
 109         if (FAILED(ret))
 110             return FALSE;
 111     }
 112
 113     if (type >= 0 && type <= 2)
 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 = %lx\n", type);
 128             flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 129             break;
 130         }
 131         if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 132         {
 133             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 134             if (SUCCEEDED(ret))
 135             {
 136                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 137                     ret = E_FAIL;
 138             }
 139         }
 140         else
 141         {
 142             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 143             if (SUCCEEDED(ret))
 144             {
 145                 ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 146                 if (SUCCEEDED(ret))
 147                 {
 148                     if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 149                         ret = E_FAIL;
 150                 }
 151                 IShellFolder_Release(psfParent);
 152             }
 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 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 164 {
 165     TRACE_(shell)("%p %p %p %ld\n", psf, pidl, path, type);
 166
 167     if (SHELL_OsIsUnicode())
 168         return ILGetDisplayNameExW(psf, pidl, path, type);
 169     return ILGetDisplayNameExA(psf, pidl, path, type);
 170 }
 171
 172 /*************************************************************************
 173  * ILGetDisplayName            [SHELL32.15]
 174  */
 175 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 176 {
 177     TRACE_(shell)("%p %p\n", pidl, path);
 178
 179     if (SHELL_OsIsUnicode())
 180         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 181     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 182 }
 183
 184 /*************************************************************************
 185  * ILFindLastID [SHELL32.16]
 186  *
 187  * NOTES
 188  *   observed: pidl=Desktop return=pidl
 189  */
 190 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 191 {
 192     LPCITEMIDLIST   pidlLast = pidl;
 193
 194     TRACE("(pidl=%p)\n",pidl);
 195
 196     if (!pidl)
 197         return NULL;
 198
 199     while (pidl->mkid.cb)
 200     {
 201         pidlLast = pidl;
 202         pidl = ILGetNext(pidl);
 203     }
 204     return (LPITEMIDLIST)pidlLast;
 205 }
 206
 207 /*************************************************************************
 208  * ILRemoveLastID [SHELL32.17]
 209  *
 210  * NOTES
 211  *   when pidl=Desktop return=FALSE
 212  */
 213 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 214 {
 215     TRACE_(shell)("pidl=%p\n",pidl);
 216
 217     if (!pidl || !pidl->mkid.cb)
 218         return 0;
 219     ILFindLastID(pidl)->mkid.cb = 0;
 220     return 1;
 221 }
 222
 223 /*************************************************************************
 224  * ILClone [SHELL32.18]
 225  *
 226  * NOTES
 227  *    duplicate an idlist
 228  */
 229 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 230 {
 231     DWORD    len;
 232     LPITEMIDLIST  newpidl;
 233
 234     if (!pidl)
 235         return NULL;
 236
 237     len = ILGetSize(pidl);
 238     newpidl = (LPITEMIDLIST)SHAlloc(len);
 239     if (newpidl)
 240         memcpy(newpidl,pidl,len);
 241
 242     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 243     pdump(pidl);
 244
 245     return newpidl;
 246 }
 247
 248 /*************************************************************************
 249  * ILCloneFirst [SHELL32.19]
 250  *
 251  * NOTES
 252  *  duplicates the first idlist of a complex pidl
 253  */
 254 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 255 {
 256     DWORD len;
 257     LPITEMIDLIST pidlNew = NULL;
 258
 259     TRACE("pidl=%p\n", pidl);
 260     pdump(pidl);
 261
 262     if (pidl)
 263     {
 264         len = pidl->mkid.cb;
 265         pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 266         if (pidlNew)
 267         {
 268             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 269
 270             if (len)
 271                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 272         }
 273     }
 274     TRACE("-- newpidl=%p\n",pidlNew);
 275
 276     return pidlNew;
 277 }
 278
 279 /*************************************************************************
 280  * ILLoadFromStream (SHELL32.26)
 281  *
 282  * NOTES
 283  *   the first two bytes are the len, the pidl is following then
 284  */
 285 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 286 {
 287     WORD        wLen = 0;
 288     DWORD       dwBytesRead;
 289     HRESULT     ret = E_FAIL;
 290
 291
 292     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 293
 294     if (*ppPidl)
 295     {
 296         SHFree(*ppPidl);
 297         *ppPidl = NULL;
 298     }
 299
 300     IStream_AddRef (pStream);
 301
 302     if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&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     LPCITEMIDLIST    pidl;
 349     WORD        wLen = 0;
 350     HRESULT        ret = E_FAIL;
 351
 352     TRACE_(shell)("%p %p\n", pStream, pPidl);
 353
 354     IStream_AddRef (pStream);
 355
 356     pidl = pPidl;
 357     while (pidl->mkid.cb)
 358     {
 359         wLen += sizeof(WORD) + pidl->mkid.cb;
 360         pidl = ILGetNext(pidl);
 361     }
 362
 363     if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 364     {
 365         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 366             ret = S_OK;
 367     }
 368     IStream_Release (pStream);
 369
 370     return ret;
 371 }
 372
 373 /*************************************************************************
 374  * SHILCreateFromPath        [SHELL32.28]
 375  *
 376  * Create an ItemIDList from a path
 377  *
 378  * PARAMS
 379  *  path       [I]
 380  *  ppidl      [O]
 381  *  attributes [I/O] requested attributes on call and actual attributes when
 382  *                   the function returns
 383  *
 384  * RETURNS
 385  *  NO_ERROR if successful, or an OLE errer code otherwise
 386  *
 387  * NOTES
 388  *  Wrapper for IShellFolder_ParseDisplayName().
 389  */
 390 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 391 {
 392     WCHAR lpszDisplayName[MAX_PATH];
 393
 394     TRACE_(shell)("%s %p 0x%08lx\n", path, ppidl, attributes ? *attributes : 0);
 395
 396     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 397         lpszDisplayName[MAX_PATH-1] = 0;
 398
 399     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 400 }
 401
 402 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 403 {
 404     LPSHELLFOLDER sf;
 405     DWORD pchEaten;
 406     HRESULT ret = E_FAIL;
 407
 408     TRACE_(shell)("%s %p 0x%08lx\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 409
 410     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 411     {
 412         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 413         IShellFolder_Release(sf);
 414     }
 415     return ret;
 416 }
 417
 418 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 419 {
 420     if ( SHELL_OsIsUnicode())
 421         return SHILCreateFromPathW (path, ppidl, attributes);
 422     return SHILCreateFromPathA (path, ppidl, attributes);
 423 }
 424
 425 /*************************************************************************
 426  * SHCloneSpecialIDList      [SHELL32.89]
 427  *
 428  * Create an ItemIDList to one of the special folders.
 429
 430  * PARAMS
 431  *  hwndOwner    [in]
 432  *  nFolder      [in]    CSIDL_xxxxx
 433  *  fCreate      [in]    Create folder if it does not exist
 434  *
 435  * RETURNS
 436  *  Success: The newly created pidl
 437  *  Failure: NULL, if inputs are invalid.
 438  *
 439  * NOTES
 440  *  exported by ordinal.
 441  *  Caller is responsible for deallocating the returned ItemIDList with the
 442  *  shells IMalloc interface, aka ILFree.
 443  */
 444 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 445 {
 446     LPITEMIDLIST ppidl;
 447     TRACE_(shell)("(hwnd=%p,csidl=0x%lx,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 448
 449     if (fCreate)
 450         nFolder |= CSIDL_FLAG_CREATE;
 451
 452     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 453     return ppidl;
 454 }
 455
 456 /*************************************************************************
 457  * ILGlobalClone             [SHELL32.20]
 458  *
 459  * Clones an ItemIDList using Alloc.
 460  *
 461  * PARAMS
 462  *  pidl       [I]   ItemIDList to clone
 463  *
 464  * RETURNS
 465  *  Newly allocated ItemIDList.
 466  *
 467  * NOTES
 468  *  exported by ordinal.
 469  */
 470 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 471 {
 472     DWORD    len;
 473     LPITEMIDLIST  newpidl;
 474
 475     if (!pidl)
 476         return NULL;
 477
 478     len = ILGetSize(pidl);
 479     newpidl = (LPITEMIDLIST)Alloc(len);
 480     if (newpidl)
 481         memcpy(newpidl,pidl,len);
 482
 483     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 484     pdump(pidl);
 485
 486     return newpidl;
 487 }
 488
 489 /*************************************************************************
 490  * ILIsEqual [SHELL32.21]
 491  *
 492  */
 493 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 494 {
 495     char    szData1[MAX_PATH];
 496     char    szData2[MAX_PATH];
 497
 498     LPCITEMIDLIST pidltemp1 = pidl1;
 499     LPCITEMIDLIST pidltemp2 = pidl2;
 500
 501     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 502
 503     /*
 504      * Explorer reads from registry directly (StreamMRU),
 505      * so we can only check here
 506      */
 507     if (!pcheck(pidl1) || !pcheck (pidl2))
 508         return FALSE;
 509
 510     pdump (pidl1);
 511     pdump (pidl2);
 512
 513     if (!pidl1 || !pidl2)
 514         return FALSE;
 515
 516     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 517     {
 518         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 519         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 520
 521         if (strcasecmp( szData1, szData2 ))
 522             return FALSE;
 523
 524         pidltemp1 = ILGetNext(pidltemp1);
 525         pidltemp2 = ILGetNext(pidltemp2);
 526     }
 527
 528     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 529         return TRUE;
 530
 531     return FALSE;
 532 }
 533
 534 /*************************************************************************
 535  * ILIsParent                [SHELL32.23]
 536  *
 537  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 538  *
 539  * PARAMS
 540  *  pidlParent [I]
 541  *  pidlChild  [I]
 542  *  bImmediate [I]   only return true if the parent is the direct parent
 543  *                   of the child
 544  *
 545  * RETURNS
 546  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 547  *  False otherwise.
 548  *
 549  * NOTES
 550  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 551  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 552  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 553  */
 554 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 555 {
 556     char    szData1[MAX_PATH];
 557     char    szData2[MAX_PATH];
 558     LPCITEMIDLIST pParent = pidlParent;
 559     LPCITEMIDLIST pChild = pidlChild;
 560
 561     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 562
 563     if (!pParent || !pChild)
 564         return FALSE;
 565
 566     while (pParent->mkid.cb && pChild->mkid.cb)
 567     {
 568         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 569         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 570
 571         if (strcasecmp( szData1, szData2 ))
 572             return FALSE;
 573
 574         pParent = ILGetNext(pParent);
 575         pChild = ILGetNext(pChild);
 576     }
 577
 578     /* child shorter or has equal length to parent */
 579     if (pParent->mkid.cb || !pChild->mkid.cb)
 580         return FALSE;
 581
 582     /* not immediate descent */
 583     if ( ILGetNext(pChild)->mkid.cb && bImmediate)
 584         return FALSE;
 585
 586     return TRUE;
 587 }
 588
 589 /*************************************************************************
 590  * ILFindChild               [SHELL32.24]
 591  *
 592  *  Compares elements from pidl1 and pidl2.
 593  *
 594  * PARAMS
 595  *  pidl1      [I]
 596  *  pidl2      [I]
 597  *
 598  * RETURNS
 599  *  pidl1 is desktop      pidl2
 600  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 601  *                        if there was at least one equal element
 602  *  pidl2 shorter pidl1   0
 603  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 604  *
 605  * NOTES
 606  *  exported by ordinal.
 607  */
 608 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 609 {
 610     char    szData1[MAX_PATH];
 611     char    szData2[MAX_PATH];
 612
 613     LPCITEMIDLIST pidltemp1 = pidl1;
 614     LPCITEMIDLIST pidltemp2 = pidl2;
 615     LPCITEMIDLIST ret=NULL;
 616
 617     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 618
 619     /* explorer reads from registry directly (StreamMRU),
 620        so we can only check here */
 621     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 622         return FALSE;
 623
 624     pdump (pidl1);
 625     pdump (pidl2);
 626
 627     if (_ILIsDesktop(pidl1))
 628     {
 629         ret = pidl2;
 630     }
 631     else
 632     {
 633         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 634         {
 635             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 636             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 637
 638             if (strcasecmp(szData1,szData2))
 639                 break;
 640
 641             pidltemp1 = ILGetNext(pidltemp1);
 642             pidltemp2 = ILGetNext(pidltemp2);
 643             ret = pidltemp2;
 644         }
 645
 646         if (pidltemp1->mkid.cb)
 647             ret = NULL; /* elements of pidl1 left*/
 648     }
 649     TRACE_(shell)("--- %p\n", ret);
 650     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 651 }
 652
 653 /*************************************************************************
 654  * ILCombine                 [SHELL32.25]
 655  *
 656  * Concatenates two complex ItemIDLists.
 657  *
 658  * PARAMS
 659  *  pidl1      [I]   first complex ItemIDLists
 660  *  pidl2      [I]   complex ItemIDLists to append
 661  *
 662  * RETURNS
 663  *  if both pidl's == NULL      NULL
 664  *  if pidl1 == NULL            cloned pidl2
 665  *  if pidl2 == NULL            cloned pidl1
 666  *  otherwise new pidl with pidl2 appended to pidl1
 667  *
 668  * NOTES
 669  *  exported by ordinal.
 670  *  Does not destroy the passed in ItemIDLists!
 671  */
 672 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 673 {
 674     DWORD    len1,len2;
 675     LPITEMIDLIST  pidlNew;
 676
 677     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 678
 679     if (!pidl1 && !pidl2) return NULL;
 680
 681     pdump (pidl1);
 682     pdump (pidl2);
 683
 684     if (!pidl1)
 685     {
 686         pidlNew = ILClone(pidl2);
 687         return pidlNew;
 688     }
 689
 690     if (!pidl2)
 691     {
 692         pidlNew = ILClone(pidl1);
 693         return pidlNew;
 694     }
 695
 696     len1  = ILGetSize(pidl1)-2;
 697     len2  = ILGetSize(pidl2);
 698     pidlNew  = SHAlloc(len1+len2);
 699
 700     if (pidlNew)
 701     {
 702         memcpy(pidlNew,pidl1,len1);
 703         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 704     }
 705
 706     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 707     return pidlNew;
 708 }
 709
 710 /*************************************************************************
 711  *  SHGetRealIDL [SHELL32.98]
 712  *
 713  * NOTES
 714  */
 715 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 716 {
 717     IDataObject* pDataObj;
 718     HRESULT hr;
 719
 720     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 721                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 722     if (SUCCEEDED(hr))
 723     {
 724         STGMEDIUM medium;
 725         FORMATETC fmt;
 726
 727         fmt.cfFormat = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
 728         fmt.ptd = NULL;
 729         fmt.dwAspect = DVASPECT_CONTENT;
 730         fmt.lindex = -1;
 731         fmt.tymed = TYMED_HGLOBAL;
 732
 733         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 734
 735         IDataObject_Release(pDataObj);
 736
 737         if (SUCCEEDED(hr))
 738         {
 739             /*assert(pida->cidl==1);*/
 740             LPIDA pida = (LPIDA)GlobalLock(medium.u.hGlobal);
 741
 742             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 743             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 744
 745             *pidlReal = ILCombine(pidl_folder, pidl_child);
 746
 747             if (!*pidlReal)
 748                 hr = E_OUTOFMEMORY;
 749
 750             GlobalUnlock(medium.u.hGlobal);
 751             GlobalFree(medium.u.hGlobal);
 752         }
 753     }
 754
 755     return hr;
 756 }
 757
 758 /*************************************************************************
 759  *  SHLogILFromFSIL [SHELL32.95]
 760  *
 761  * NOTES
 762  *  pild = CSIDL_DESKTOP    ret = 0
 763  *  pild = CSIDL_DRIVES     ret = 0
 764  */
 765 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 766 {
 767     FIXME("(pidl=%p)\n",pidl);
 768
 769     pdump(pidl);
 770
 771     return 0;
 772 }
 773
 774 /*************************************************************************
 775  * ILGetSize                 [SHELL32.152]
 776  *
 777  * Gets the byte size of an ItemIDList including zero terminator
 778  *
 779  * PARAMS
 780  *  pidl       [I]   ItemIDList
 781  *
 782  * RETURNS
 783  *  size of pidl in bytes
 784  *
 785  * NOTES
 786  *  exported by ordinal
 787  */
 788 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 789 {
 790     LPCSHITEMID si = &(pidl->mkid);
 791     UINT len=0;
 792
 793     if (pidl)
 794     {
 795         while (si->cb)
 796         {
 797             len += si->cb;
 798             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 799         }
 800         len += 2;
 801     }
 802     TRACE("pidl=%p size=%u\n",pidl, len);
 803     return len;
 804 }
 805
 806 /*************************************************************************
 807  * ILGetNext                 [SHELL32.153]
 808  *
 809  * Gets the next ItemID of an ItemIDList
 810  *
 811  * PARAMS
 812  *  pidl       [I]   ItemIDList
 813  *
 814  * RETURNS
 815  *  null -> null
 816  *  desktop -> null
 817  *  simple pidl -> pointer to 0x0000 element
 818  *
 819  * NOTES
 820  *  exported by ordinal.
 821  */
 822 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 823 {
 824     WORD len;
 825
 826     TRACE("%p\n", pidl);
 827
 828     if (pidl)
 829     {
 830         len =  pidl->mkid.cb;
 831         if (len)
 832         {
 833             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 834             TRACE("-- %p\n", pidl);
 835             return (LPITEMIDLIST)pidl;
 836         }
 837     }
 838     return NULL;
 839 }
 840
 841 /*************************************************************************
 842  * ILAppend                  [SHELL32.154]
 843  *
 844  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 845  * If bEnd is FALSE, inserts the item in the front of the list,
 846  * otherwise it adds the item to the end. (???)
 847  *
 848  * PARAMS
 849  *  pidl       [I]   ItemIDList to extend
 850  *  item       [I]   ItemID to prepend/append
 851  *  bEnd       [I]   Indicates if the item should be appended
 852  *
 853  * NOTES
 854  *  Destroys the passed in idlist! (???)
 855  */
 856 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 857 {
 858     LPITEMIDLIST idlRet;
 859
 860     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 861
 862     pdump (pidl);
 863     pdump (item);
 864
 865     if (_ILIsDesktop(pidl))
 866     {
 867         idlRet = ILClone(item);
 868         if (pidl)
 869             SHFree (pidl);
 870         return idlRet;
 871     }
 872
 873     if (bEnd)
 874         idlRet = ILCombine(pidl, item);
 875     else
 876         idlRet = ILCombine(item, pidl);
 877
 878     SHFree(pidl);
 879     return idlRet;
 880 }
 881
 882 /*************************************************************************
 883  * ILFree                    [SHELL32.155]
 884  *
 885  * Frees memory (if not NULL) allocated by SHMalloc allocator
 886  *
 887  * PARAMS
 888  *  pidl         [I]
 889  *
 890  * RETURNS
 891  *  Nothing
 892  *
 893  * NOTES
 894  *  exported by ordinal
 895  */
 896 void WINAPI ILFree(LPITEMIDLIST pidl)
 897 {
 898     TRACE("(pidl=%p)\n",pidl);
 899     if (pidl)
 900         SHFree(pidl);
 901 }
 902
 903 /*************************************************************************
 904  * ILGlobalFree              [SHELL32.156]
 905  *
 906  * Frees memory (if not NULL) allocated by Alloc allocator
 907  *
 908  * PARAMS
 909  *  pidl         [I]
 910  *
 911  * RETURNS
 912  *  Nothing
 913  *
 914  * NOTES
 915  *  exported by ordinal.
 916  */
 917 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 918 {
 919     TRACE("%p\n", pidl);
 920
 921     if (pidl)
 922         Free(pidl);
 923 }
 924
 925 /*************************************************************************
 926  * ILCreateFromPathA         [SHELL32.189]
 927  *
 928  * Creates a complex ItemIDList from a path and returns it.
 929  *
 930  * PARAMS
 931  *  path         [I]
 932  *
 933  * RETURNS
 934  *  the newly created complex ItemIDList or NULL if failed
 935  *
 936  * NOTES
 937  *  exported by ordinal.
 938  */
 939 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 940 {
 941     LPITEMIDLIST pidlnew = NULL;
 942
 943     TRACE_(shell)("%s\n", debugstr_a(path));
 944
 945     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 946         return pidlnew;
 947     return NULL;
 948 }
 949
 950 /*************************************************************************
 951  * ILCreateFromPathW         [SHELL32.190]
 952  *
 953  * See ILCreateFromPathA.
 954  */
 955 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 956 {
 957     LPITEMIDLIST pidlnew = NULL;
 958
 959     TRACE_(shell)("%s\n", debugstr_w(path));
 960
 961     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 962         return pidlnew;
 963     return NULL;
 964 }
 965
 966 /*************************************************************************
 967  * ILCreateFromPath          [SHELL32.157]
 968  */
 969 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 970 {
 971     if ( SHELL_OsIsUnicode())
 972         return ILCreateFromPathW (path);
 973     return ILCreateFromPathA (path);
 974 }
 975
 976 /*************************************************************************
 977  * _ILParsePathW             [internal]
 978  *
 979  * Creates an ItemIDList from a path and returns it.
 980  *
 981  * PARAMS
 982  *  path         [I]   path to parse and convert into an ItemIDList
 983  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 984  *                     Bind Data object with
 985  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 986  *                     FileSystem Bind Data object
 987  *  ppidl        [O]   the newly create ItemIDList
 988  *  prgfInOut    [I/O] requested attributes on input and actual
 989  *                     attributes on return
 990  *
 991  * RETURNS
 992  *  NO_ERROR on success or an OLE error code
 993  *
 994  * NOTES
 995  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 996  *  creates a BindContext object and assigns a FileSystem Bind Data object
 997  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 998  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 999  *  to pass data about the current path element to the next object. This
1000  *  is used to avoid having to verify the current path element on disk, so
1001  *  that creating an ItemIDList from a nonexistent path still can work.
1002  */
1003 static HRESULT WINAPI _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
1004                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
1005 {
1006     LPSHELLFOLDER pSF = NULL;
1007     LPBC pBC = NULL;
1008     HRESULT ret;
1009
1010     TRACE("%s %p %d (%p)->%p (%p)->0x%lx\n", debugstr_w(path), lpFindFile, bBindCtx,
1011                                              ppidl, ppidl ? *ppidl : NULL,
1012                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1013
1014     ret = SHGetDesktopFolder(&pSF);
1015     if (FAILED(ret))
1016         return ret;
1017
1018     if (lpFindFile || bBindCtx)
1019         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1020
1021     if (SUCCEEDED(ret))
1022     {
1023         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1024     }
1025
1026     if (pBC)
1027     {
1028         IBindCtx_Release(pBC);
1029         pBC = NULL;
1030     }
1031
1032     IShellFolder_Release(pSF);
1033
1034     if (!SUCCEEDED(ret) && ppidl)
1035         *ppidl = NULL;
1036
1037     TRACE("%s %p 0x%lx\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1038
1039     return ret;
1040 }
1041
1042 /*************************************************************************
1043  * SHSimpleIDListFromPath    [SHELL32.162]
1044  *
1045  * Creates a simple ItemIDList from a path and returns it. This function
1046  * does not fail on nonexistent paths.
1047  *
1048  * PARAMS
1049  *  path         [I]   path to parse and convert into an ItemIDList
1050  *
1051  * RETURNS
1052  *  the newly created simple ItemIDList
1053  *
1054  * NOTES
1055  *  Simple in the name does not mean a relative ItemIDList but rather a
1056  *  fully qualified list, where only the file name is filled in and the
1057  *  directory flag for those ItemID elements this is known about, eg.
1058  *  it is not the last element in the ItemIDList or the actual directory
1059  *  exists on disk.
1060  *  exported by ordinal.
1061  */
1062 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1063 {
1064     LPITEMIDLIST pidl = NULL;
1065     LPWSTR wPath = NULL;
1066     int len;
1067
1068     TRACE("%s\n", debugstr_a(lpszPath));
1069
1070     if (lpszPath)
1071     {
1072         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1073         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1074         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1075     }
1076
1077     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1078
1079     HeapFree(GetProcessHeap(), 0, wPath);
1080     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1081     return pidl;
1082 }
1083
1084 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1085 {
1086     LPITEMIDLIST pidl = NULL;
1087
1088     TRACE("%s\n", debugstr_w(lpszPath));
1089
1090     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1091     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1092     return pidl;
1093 }
1094
1095 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1096 {
1097     if ( SHELL_OsIsUnicode())
1098         return SHSimpleIDListFromPathW (lpszPath);
1099     return SHSimpleIDListFromPathA (lpszPath);
1100 }
1101
1102 /*************************************************************************
1103  * SHGetDataFromIDListA [SHELL32.247]
1104  *
1105  * NOTES
1106  *  the pidl can be a simple one. since we can't get the path out of the pidl
1107  *  we have to take all data from the pidl
1108  */
1109 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1110                                     int nFormat, LPVOID dest, int len)
1111 {
1112     LPSTR filename, shortname;
1113     WIN32_FIND_DATAA * pfd;
1114
1115     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1116
1117     pdump(pidl);
1118     if (!psf || !dest)
1119         return E_INVALIDARG;
1120
1121     switch (nFormat)
1122     {
1123     case SHGDFIL_FINDDATA:
1124         pfd = dest;
1125
1126         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1127             return E_INVALIDARG;
1128
1129         if (len < sizeof(WIN32_FIND_DATAA))
1130             return E_INVALIDARG;
1131
1132         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1133         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1134         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1135         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1136
1137         filename = _ILGetTextPointer(pidl);
1138         shortname = _ILGetSTextPointer(pidl);
1139
1140         if (filename)
1141             lstrcpynA(pfd->cFileName, filename, MAX_PATH);
1142         else
1143             pfd->cFileName[0] = '\0';
1144
1145         if (shortname)
1146             lstrcpynA(pfd->cAlternateFileName, shortname, MAX_PATH);
1147         else
1148             pfd->cAlternateFileName[0] = '\0';
1149         return NOERROR;
1150
1151     case SHGDFIL_NETRESOURCE:
1152     case SHGDFIL_DESCRIPTIONID:
1153         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1154         break;
1155
1156     default:
1157         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1158     }
1159
1160     return E_INVALIDARG;
1161 }
1162
1163 /*************************************************************************
1164  * SHGetDataFromIDListW [SHELL32.248]
1165  *
1166  */
1167 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1168                                     int nFormat, LPVOID dest, int len)
1169 {
1170     LPSTR filename, shortname;
1171     WIN32_FIND_DATAW * pfd = dest;
1172
1173     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1174
1175     pdump(pidl);
1176
1177     if (!psf || !dest)
1178         return E_INVALIDARG;
1179
1180     switch (nFormat)
1181     {
1182     case SHGDFIL_FINDDATA:
1183         pfd = dest;
1184
1185         if (_ILIsDrive(pidl))
1186             return E_INVALIDARG;
1187
1188         if (len < sizeof(WIN32_FIND_DATAW))
1189             return E_INVALIDARG;
1190
1191         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1192         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1193         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1194         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1195
1196         filename = _ILGetTextPointer(pidl);
1197         shortname = _ILGetSTextPointer(pidl);
1198
1199         if (!filename)
1200             pfd->cFileName[0] = '\0';
1201         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1202             pfd->cFileName[MAX_PATH-1] = 0;
1203
1204         if (!shortname)
1205             pfd->cAlternateFileName[0] = '\0';
1206         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1207             pfd->cAlternateFileName[13] = 0;
1208         return NOERROR;
1209
1210     case SHGDFIL_NETRESOURCE:
1211     case SHGDFIL_DESCRIPTIONID:
1212         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1213         break;
1214
1215     default:
1216         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1217     }
1218
1219     return E_INVALIDARG;
1220 }
1221
1222 /*************************************************************************
1223  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1224  *
1225  * PARAMETERS
1226  *  pidl,   [IN] pidl
1227  *  pszPath [OUT] path
1228  *
1229  * RETURNS
1230  *  path from a passed PIDL.
1231  *
1232  * NOTES
1233  *    NULL returns FALSE
1234  *    desktop pidl gives path to desktop directory back
1235  *    special pidls returning FALSE
1236  */
1237 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1238 {
1239     WCHAR wszPath[MAX_PATH];
1240     BOOL bSuccess;
1241
1242     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1243     if (bSuccess)
1244         WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1245
1246     return bSuccess;
1247 }
1248
1249 /*************************************************************************
1250  * SHGetPathFromIDListW             [SHELL32.@]
1251  *
1252  * See SHGetPathFromIDListA.
1253  */
1254 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1255 {
1256     HRESULT hr;
1257     LPCITEMIDLIST pidlLast;
1258     LPSHELLFOLDER psfFolder;
1259     DWORD dwAttributes;
1260     STRRET strret;
1261
1262     TRACE_(shell)("(pidl=%p,%p)\n", pidl, pszPath);
1263     pdump(pidl);
1264
1265     if (!pidl)
1266         return FALSE;
1267
1268     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1269     if (FAILED(hr)) return FALSE;
1270
1271     dwAttributes = SFGAO_FILESYSTEM;
1272     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1273     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1274         IShellFolder_Release(psfFolder);
1275         return FALSE;
1276     }
1277
1278     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1279     IShellFolder_Release(psfFolder);
1280     if (FAILED(hr)) return FALSE;
1281
1282     hr = StrRetToBufW(&strret, pidlLast, pszPath, MAX_PATH);
1283
1284     TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(pszPath), hr);
1285     return SUCCEEDED(hr);
1286 }
1287
1288 /*************************************************************************
1289  *    SHBindToParent        [shell version 5.0]
1290  */
1291 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1292 {
1293     IShellFolder    * psfDesktop;
1294     HRESULT         hr=E_FAIL;
1295
1296     TRACE_(shell)("pidl=%p\n", pidl);
1297     pdump(pidl);
1298
1299     if (!pidl || !ppv)
1300         return E_INVALIDARG;
1301
1302     *ppv = NULL;
1303     if (ppidlLast)
1304         *ppidlLast = NULL;
1305
1306     hr = SHGetDesktopFolder(&psfDesktop);
1307     if (FAILED(hr))
1308         return hr;
1309
1310     if (_ILIsPidlSimple(pidl))
1311     {
1312         /* we are on desktop level */
1313         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1314     }
1315     else
1316     {
1317         LPITEMIDLIST pidlParent = ILClone(pidl);
1318         ILRemoveLastID(pidlParent);
1319         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1320         SHFree (pidlParent);
1321     }
1322
1323     IShellFolder_Release(psfDesktop);
1324
1325     if (SUCCEEDED(hr) && ppidlLast)
1326         *ppidlLast = ILFindLastID(pidl);
1327
1328     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1329     return hr;
1330 }
1331
1332 /**************************************************************************
1333  *
1334  *        internal functions
1335  *
1336  *    ### 1. section creating pidls ###
1337  *
1338  *************************************************************************
1339  */
1340 LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1341 {
1342     LPITEMIDLIST pidlOut = NULL;
1343
1344     pidlOut = SHAlloc(size + 5);
1345     if(pidlOut)
1346     {
1347         LPPIDLDATA pData;
1348         LPITEMIDLIST pidlNext;
1349
1350         ZeroMemory(pidlOut, size + 5);
1351         pidlOut->mkid.cb = size + 3;
1352
1353         pData = _ILGetDataPointer(pidlOut);
1354         if (pData)
1355             pData->type = type;
1356
1357         pidlNext = ILGetNext(pidlOut);
1358         if (pidlNext)
1359             pidlNext->mkid.cb = 0x00;
1360         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1361     }
1362
1363     return pidlOut;
1364 }
1365
1366 LPITEMIDLIST _ILCreateDesktop()
1367 {
1368     LPITEMIDLIST ret;
1369
1370     TRACE("()\n");
1371     ret = SHAlloc(2);
1372     if (ret)
1373         ret->mkid.cb = 0;
1374     return ret;
1375 }
1376
1377 LPITEMIDLIST _ILCreateMyComputer()
1378 {
1379     TRACE("()\n");
1380     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1381 }
1382
1383 LPITEMIDLIST _ILCreateMyDocuments()
1384 {
1385     TRACE("()\n");
1386     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1387 }
1388
1389 LPITEMIDLIST _ILCreateIExplore()
1390 {
1391     TRACE("()\n");
1392     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1393 }
1394
1395 LPITEMIDLIST _ILCreateControlPanel()
1396 {
1397     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1398
1399     TRACE("()\n");
1400     if (parent)
1401     {
1402         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1403
1404         if (cpl)
1405         {
1406             ret = ILCombine(parent, cpl);
1407             SHFree(cpl);
1408         }
1409         SHFree(parent);
1410     }
1411     return ret;
1412 }
1413
1414 LPITEMIDLIST _ILCreatePrinters()
1415 {
1416     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1417
1418     TRACE("()\n");
1419     if (parent)
1420     {
1421         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1422
1423         if (printers)
1424         {
1425             ret = ILCombine(parent, printers);
1426             SHFree(printers);
1427         }
1428         SHFree(parent);
1429     }
1430     return ret;
1431 }
1432
1433 LPITEMIDLIST _ILCreateNetwork()
1434 {
1435     TRACE("()\n");
1436     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1437 }
1438
1439 LPITEMIDLIST _ILCreateBitBucket()
1440 {
1441     TRACE("()\n");
1442     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1443 }
1444
1445 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1446 {
1447     LPITEMIDLIST pidlOut;
1448
1449     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1450     {
1451         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1452         if (pidlOut)
1453         {
1454             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1455
1456             memcpy(&(pData->u.guid.guid), guid, sizeof(GUID));
1457             TRACE("-- create GUID-pidl %s\n",
1458                   debugstr_guid(&(pData->u.guid.guid)));
1459         }
1460     }
1461     else
1462     {
1463         WARN("%d: invalid type for GUID\n", type);
1464         pidlOut = NULL;
1465     }
1466     return pidlOut;
1467 }
1468
1469 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1470 {
1471     IID iid;
1472
1473     if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1474     {
1475         ERR("%s is not a GUID\n", szGUID);
1476         return NULL;
1477     }
1478     return _ILCreateGuid(PT_GUID, &iid);
1479 }
1480
1481 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1482 {
1483     IID iid;
1484
1485     if (!SUCCEEDED(SHCLSIDFromStringW(szGUID, &iid)))
1486     {
1487         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1488         return NULL;
1489     }
1490     return _ILCreateGuid(PT_GUID, &iid);
1491 }
1492
1493 LPITEMIDLIST _ILCreateFromFindDataW( WIN32_FIND_DATAW *wfd )
1494 {
1495     /* FIXME: should make unicode PIDLs */
1496     WIN32_FIND_DATAA fda;
1497
1498     memset( &fda, 0, sizeof fda );
1499     fda.dwFileAttributes = wfd->dwFileAttributes;
1500     fda.ftCreationTime = wfd->ftCreationTime;
1501     fda.ftLastAccessTime = wfd->ftLastAccessTime;
1502     fda.ftLastWriteTime = wfd->ftLastWriteTime;
1503     fda.nFileSizeHigh = wfd->nFileSizeHigh;
1504     fda.nFileSizeLow = wfd->nFileSizeLow;
1505     fda.dwReserved0 = wfd->dwReserved0;
1506     fda.dwReserved1 = wfd->dwReserved1;
1507     WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1,
1508                          fda.cFileName, MAX_PATH, NULL, NULL );
1509     return _ILCreateFromFindDataA( &fda );
1510 }
1511
1512 LPITEMIDLIST _ILCreateFromFindDataA(WIN32_FIND_DATAA * stffile )
1513 {
1514     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1515     char *  pbuff = buff;
1516     size_t  len, len1;
1517     LPITEMIDLIST pidl;
1518     PIDLTYPE type;
1519
1520     if (!stffile)
1521         return NULL;
1522
1523     TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1524
1525     /* prepare buffer with both names */
1526     len = strlen (stffile->cFileName) + 1;
1527     memcpy (pbuff, stffile->cFileName, len);
1528     pbuff += len;
1529
1530     len1 = strlen (stffile->cAlternateFileName)+1;
1531     memcpy (pbuff, stffile->cAlternateFileName, len1);
1532
1533     type = (stffile->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1534
1535     /*
1536      * FileStruct already has one byte for the first name, so use len - 1 in
1537      * size calculation
1538      */
1539     pidl = _ILAlloc(type, sizeof(FileStruct) + (len - 1) + len1);
1540     if (pidl)
1541     {
1542         LPPIDLDATA pData;
1543         LPSTR pszDest;
1544
1545         /* set attributes */
1546         pData = _ILGetDataPointer(pidl);
1547         if (pData)
1548         {
1549             pData->type = type;
1550             FileTimeToDosDateTime( &(stffile->ftLastWriteTime),
1551                           &pData->u.file.uFileDate, &pData->u.file.uFileTime);
1552             pData->u.file.dwFileSize = stffile->nFileSizeLow;
1553             pData->u.file.uFileAttribs = (WORD)stffile->dwFileAttributes;
1554         }
1555         pszDest = _ILGetTextPointer(pidl);
1556         if (pszDest)
1557         {
1558             memcpy(pszDest, buff, len + len1);
1559             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1560         }
1561     }
1562     return pidl;
1563 }
1564
1565 HRESULT _ILCreateFromPathA(LPCSTR szPath, LPITEMIDLIST* ppidl)
1566 {
1567     HANDLE hFile;
1568     WIN32_FIND_DATAA stffile;
1569
1570     if (!ppidl)
1571         return E_INVALIDARG;
1572
1573     hFile = FindFirstFileA(szPath, &stffile);
1574     if (hFile == INVALID_HANDLE_VALUE)
1575         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1576
1577     FindClose(hFile);
1578
1579     *ppidl = _ILCreateFromFindDataA(&stffile);
1580
1581     return *ppidl ? S_OK : E_OUTOFMEMORY;
1582 }
1583
1584 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1585 {
1586     HANDLE hFile;
1587     WIN32_FIND_DATAW stffile;
1588
1589     if (!ppidl)
1590         return E_INVALIDARG;
1591
1592     hFile = FindFirstFileW(szPath, &stffile);
1593     if (hFile == INVALID_HANDLE_VALUE)
1594         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1595
1596     FindClose(hFile);
1597
1598     *ppidl = _ILCreateFromFindDataW(&stffile);
1599
1600     return *ppidl ? S_OK : E_OUTOFMEMORY;
1601 }
1602
1603 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1604 {
1605     LPITEMIDLIST pidlOut;
1606
1607     TRACE("(%s)\n",debugstr_w(lpszNew));
1608
1609     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1610     if (pidlOut)
1611     {
1612         LPSTR pszDest;
1613
1614         pszDest = _ILGetTextPointer(pidlOut);
1615         if (pszDest)
1616         {
1617             strcpy(pszDest, "x:\\");
1618             pszDest[0]=toupperW(lpszNew[0]);
1619             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1620         }
1621     }
1622     return pidlOut;
1623 }
1624
1625 /**************************************************************************
1626  *  _ILGetDrive()
1627  *
1628  *  Gets the text for the drive eg. 'c:\'
1629  *
1630  * RETURNS
1631  *  strlen (lpszText)
1632  */
1633 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1634 {
1635     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1636
1637     if(_ILIsMyComputer(pidl))
1638         pidl = ILGetNext(pidl);
1639
1640     if (pidl && _ILIsDrive(pidl))
1641         return _ILSimpleGetText(pidl, pOut, uSize);
1642
1643     return 0;
1644 }
1645
1646 /**************************************************************************
1647  *
1648  *    ### 2. section testing pidls ###
1649  *
1650  **************************************************************************
1651  *  _ILIsDesktop()
1652  *  _ILIsMyComputer()
1653  *  _ILIsSpecialFolder()
1654  *  _ILIsDrive()
1655  *  _ILIsFolder()
1656  *  _ILIsValue()
1657  *  _ILIsPidlSimple()
1658  */
1659 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1660 {
1661     TRACE("(%p)\n",pidl);
1662
1663     return pidl && pidl->mkid.cb  ? 0 : 1;
1664 }
1665
1666 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1667 {
1668     REFIID iid = _ILGetGUIDPointer(pidl);
1669
1670     TRACE("(%p)\n",pidl);
1671
1672     if (iid)
1673         return IsEqualIID(iid, &CLSID_MyComputer);
1674     return FALSE;
1675 }
1676
1677 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1678 {
1679     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1680
1681     TRACE("(%p)\n",pidl);
1682
1683     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1684               (pidl && pidl->mkid.cb == 0x00)
1685             ));
1686 }
1687
1688 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1689 {
1690     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1691
1692     TRACE("(%p)\n",pidl);
1693
1694     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1695                     PT_DRIVE1 == lpPData->type ||
1696                     PT_DRIVE2 == lpPData->type ||
1697                     PT_DRIVE3 == lpPData->type));
1698 }
1699
1700 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1701 {
1702     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1703
1704     TRACE("(%p)\n",pidl);
1705
1706     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1707 }
1708
1709 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1710 {
1711     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1712
1713     TRACE("(%p)\n",pidl);
1714
1715     return (pidl && lpPData && PT_VALUE == lpPData->type);
1716 }
1717
1718 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1719 {
1720     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1721
1722     TRACE("(%p)\n",pidl);
1723
1724     return (pidl && lpPData && (lpPData->type == 0));
1725 }
1726
1727 /**************************************************************************
1728  *    _ILIsPidlSimple
1729  */
1730 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1731 {
1732     BOOL ret = TRUE;
1733
1734     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1735     {
1736         WORD len = pidl->mkid.cb;
1737         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1738
1739         if (pidlnext->mkid.cb)
1740             ret = FALSE;
1741     }
1742
1743     TRACE("%s\n", ret ? "Yes" : "No");
1744     return ret;
1745 }
1746
1747 /**************************************************************************
1748  *
1749  *    ### 3. section getting values from pidls ###
1750  */
1751
1752  /**************************************************************************
1753  *  _ILSimpleGetText
1754  *
1755  * gets the text for the first item in the pidl (eg. simple pidl)
1756  *
1757  * returns the length of the string
1758  */
1759 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1760 {
1761     DWORD        dwReturn=0;
1762     LPSTR        szSrc;
1763     GUID const * riid;
1764     char szTemp[MAX_PATH];
1765
1766     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1767
1768     if (!pidl)
1769         return 0;
1770
1771     if (szOut)
1772         *szOut = 0;
1773
1774     if (_ILIsDesktop(pidl))
1775     {
1776         /* desktop */
1777         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1778         {
1779             if (szOut)
1780                 lstrcpynA(szOut, szTemp, uOutSize);
1781
1782             dwReturn = strlen (szTemp);
1783         }
1784     }
1785     else if (( szSrc = _ILGetTextPointer(pidl) ))
1786     {
1787         /* filesystem */
1788         if (szOut)
1789             lstrcpynA(szOut, szSrc, uOutSize);
1790
1791         dwReturn = strlen(szSrc);
1792     }
1793     else if (( riid = _ILGetGUIDPointer(pidl) ))
1794     {
1795         /* special folder */
1796         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1797         {
1798             if (szOut)
1799                 lstrcpynA(szOut, szTemp, uOutSize);
1800
1801             dwReturn = strlen (szTemp);
1802         }
1803     }
1804     else
1805     {
1806         ERR("-- no text\n");
1807     }
1808
1809     TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
1810     return dwReturn;
1811 }
1812
1813  /**************************************************************************
1814  *  _ILSimpleGetTextW
1815  *
1816  * gets the text for the first item in the pidl (eg. simple pidl)
1817  *
1818  * returns the length of the string
1819  */
1820 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1821 {
1822     DWORD   dwReturn;
1823     char    szTemp[MAX_PATH];
1824     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
1825
1826     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1827
1828     if (pFileStructW) {
1829         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
1830         dwReturn = lstrlenW(pFileStructW->wszName);
1831     } else {
1832         dwReturn = _ILSimpleGetText(pidl, szTemp, MAX_PATH);
1833
1834         if (!MultiByteToWideChar(CP_ACP, 0, szTemp, -1, szOut, uOutSize))
1835             *szOut = 0;
1836     }
1837
1838     TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_w(szOut),dwReturn);
1839     return dwReturn;
1840 }
1841
1842 /**************************************************************************
1843  *
1844  *    ### 4. getting pointers to parts of pidls ###
1845  *
1846  **************************************************************************
1847  *  _ILGetDataPointer()
1848  */
1849 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1850 {
1851     if(pidl && pidl->mkid.cb != 0x00)
1852         return (LPPIDLDATA) &(pidl->mkid.abID);
1853     return NULL;
1854 }
1855
1856 /**************************************************************************
1857  *  _ILGetTextPointer()
1858  * gets a pointer to the long filename string stored in the pidl
1859  */
1860 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1861 {
1862     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
1863
1864     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1865
1866     if (!pdata)
1867         return NULL;
1868
1869     switch (pdata->type)
1870     {
1871     case PT_GUID:
1872     case PT_SHELLEXT:
1873     case PT_YAGUID:
1874         return NULL;
1875
1876     case PT_DRIVE:
1877     case PT_DRIVE1:
1878     case PT_DRIVE2:
1879     case PT_DRIVE3:
1880         return (LPSTR)&(pdata->u.drive.szDriveName);
1881
1882     case PT_FOLDER:
1883     case PT_FOLDER1:
1884     case PT_VALUE:
1885     case PT_IESPECIAL1:
1886     case PT_IESPECIAL2:
1887         return (LPSTR)&(pdata->u.file.szNames);
1888
1889     case PT_WORKGRP:
1890     case PT_COMP:
1891     case PT_NETWORK:
1892     case PT_NETPROVIDER:
1893     case PT_SHARE:
1894         return (LPSTR)&(pdata->u.network.szNames);
1895     }
1896     return NULL;
1897 }
1898
1899 /**************************************************************************
1900  *  _ILGetSTextPointer()
1901  * gets a pointer to the short filename string stored in the pidl
1902  */
1903 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
1904 {
1905     /* TRACE(pidl,"(pidl%p)\n", pidl); */
1906
1907     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1908
1909     if (!pdata)
1910         return NULL;
1911
1912     switch (pdata->type)
1913     {
1914     case PT_FOLDER:
1915     case PT_VALUE:
1916     case PT_IESPECIAL1:
1917     case PT_IESPECIAL2:
1918         return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
1919
1920     case PT_WORKGRP:
1921         return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
1922     }
1923     return NULL;
1924 }
1925
1926 /**************************************************************************
1927  * _ILGetGUIDPointer()
1928  *
1929  * returns reference to guid stored in some pidls
1930  */
1931 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
1932 {
1933     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1934
1935     TRACE("%p\n", pidl);
1936
1937     if (!pdata)
1938         return NULL;
1939
1940     TRACE("pdata->type 0x%04x\n", pdata->type);
1941     switch (pdata->type)
1942     {
1943     case PT_SHELLEXT:
1944     case PT_GUID:
1945     case PT_YAGUID:
1946         return &(pdata->u.guid.guid);
1947
1948     default:
1949         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
1950         break;
1951     }
1952     return NULL;
1953 }
1954
1955 /******************************************************************************
1956  * _ILGetFileStructW [Internal]
1957  *
1958  * Get pointer the a SHITEMID's FileStructW field if present
1959  *
1960  * PARAMS
1961  *  pidl [I] The SHITEMID
1962  *
1963  * RETURNS
1964  *  Success: Pointer to pidl's FileStructW field.
1965  *  Failure: NULL
1966  */
1967 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
1968     FileStructW *pFileStructW;
1969     WORD cbOffset;
1970
1971     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
1972         return NULL;
1973
1974     cbOffset = *(WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
1975     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
1976
1977     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
1978      * style with a FileStructW member. If we switch all our shellfolder-implementations to
1979      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
1980     if (cbOffset & 0x1 || /* FileStructW member is word aligned in the pidl */
1981         /* FileStructW is positioned after FileStruct */
1982         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
1983         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
1984         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
1985         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
1986     {
1987         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
1988         return NULL;
1989     }
1990
1991     return pFileStructW;
1992 }
1993
1994 /*************************************************************************
1995  * _ILGetFileDateTime
1996  *
1997  * Given the ItemIdList, get the FileTime
1998  *
1999  * PARAMS
2000  *      pidl        [I] The ItemIDList
2001  *      pFt         [I] the resulted FILETIME of the file
2002  *
2003  * RETURNS
2004  *     True if Successful
2005  *
2006  * NOTES
2007  *
2008  */
2009 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2010 {
2011     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2012
2013     if (!pdata)
2014         return FALSE;
2015
2016     switch (pdata->type)
2017     {
2018     case PT_FOLDER:
2019     case PT_VALUE:
2020         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2021         break;
2022     default:
2023         return FALSE;
2024     }
2025     return TRUE;
2026 }
2027
2028 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2029 {
2030     FILETIME ft,lft;
2031     SYSTEMTIME time;
2032     BOOL ret;
2033
2034     if (_ILGetFileDateTime( pidl, &ft ))
2035     {
2036         FileTimeToLocalFileTime(&ft, &lft);
2037         FileTimeToSystemTime (&lft, &time);
2038
2039         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2040         if (ret)
2041         {
2042             /* Append space + time without seconds */
2043             pOut[ret-1] = ' ';
2044             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2045         }
2046     }
2047     else
2048     {
2049         pOut[0] = '\0';
2050         ret = FALSE;
2051     }
2052     return ret;
2053 }
2054
2055 /*************************************************************************
2056  * _ILGetFileSize
2057  *
2058  * Given the ItemIdList, get the FileSize
2059  *
2060  * PARAMS
2061  *    pidl     [I] The ItemIDList
2062  *    pOut     [I] The buffer to save the result
2063  *    uOutsize [I] The size of the buffer
2064  *
2065  * RETURNS
2066  *    The FileSize
2067  *
2068  * NOTES
2069  *    pOut can be null when no string is needed
2070  *
2071  */
2072 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2073 {
2074     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2075     DWORD dwSize;
2076
2077     if (!pdata)
2078         return 0;
2079
2080     switch (pdata->type)
2081     {
2082     case PT_VALUE:
2083         dwSize = pdata->u.file.dwFileSize;
2084         if (pOut)
2085             StrFormatByteSizeA(dwSize, pOut, uOutSize);
2086         return dwSize;
2087     }
2088     if (pOut)
2089         *pOut = 0x00;
2090     return 0;
2091 }
2092
2093 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2094 {
2095     char szTemp[MAX_PATH];
2096     const char * pPoint;
2097     LPCITEMIDLIST  pidlTemp=pidl;
2098
2099     TRACE("pidl=%p\n",pidl);
2100
2101     if (!pidl)
2102         return FALSE;
2103
2104     pidlTemp = ILFindLastID(pidl);
2105
2106     if (!_ILIsValue(pidlTemp))
2107         return FALSE;
2108     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2109         return FALSE;
2110
2111     pPoint = PathFindExtensionA(szTemp);
2112
2113     if (!*pPoint)
2114         return FALSE;
2115
2116     pPoint++;
2117     lstrcpynA(pOut, pPoint, uOutSize);
2118     TRACE("%s\n",pOut);
2119
2120     return TRUE;
2121 }
2122
2123 /*************************************************************************
2124  * _ILGetFileType
2125  *
2126  * Given the ItemIdList, get the file type description
2127  *
2128  * PARAMS
2129  *      pidl        [I] The ItemIDList (simple)
2130  *      pOut        [I] The buffer to save the result
2131  *      uOutsize    [I] The size of the buffer
2132  *
2133  * RETURNS
2134  *    nothing
2135  *
2136  * NOTES
2137  *    This function copies as much as possible into the buffer.
2138  */
2139 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2140 {
2141     if(_ILIsValue(pidl))
2142     {
2143         char sTemp[64];
2144
2145         if(uOutSize > 0)
2146             pOut[0] = 0;
2147         if (_ILGetExtension (pidl, sTemp, 64))
2148         {
2149             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2150                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2151             {
2152                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2153                 strcat (pOut, "-file");
2154             }
2155         }
2156     }
2157     else
2158         lstrcpynA(pOut, "Folder", uOutSize);
2159 }
2160
2161 /*************************************************************************
2162  * _ILGetFileAttributes
2163  *
2164  * Given the ItemIdList, get the Attrib string format
2165  *
2166  * PARAMS
2167  *      pidl        [I] The ItemIDList
2168  *      pOut        [I] The buffer to save the result
2169  *      uOutsize    [I] The size of the Buffer
2170  *
2171  * RETURNS
2172  *     Attributes
2173  *
2174  * FIXME
2175  *  return value 0 in case of error is a valid return value
2176  *
2177  */
2178 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2179 {
2180     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2181     WORD wAttrib = 0;
2182     int i;
2183
2184     if (!pData)
2185         return 0;
2186
2187     switch(pData->type)
2188     {
2189     case PT_FOLDER:
2190     case PT_VALUE:
2191         wAttrib = pData->u.file.uFileAttribs;
2192         break;
2193     }
2194
2195     if(uOutSize >= 6)
2196     {
2197         i=0;
2198         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2199             pOut[i++] = 'R';
2200         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2201             pOut[i++] = 'H';
2202         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2203             pOut[i++] = 'S';
2204         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2205             pOut[i++] = 'A';
2206         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2207             pOut[i++] = 'C';
2208         pOut[i] = 0x00;
2209     }
2210     return wAttrib;
2211 }
2212
2213 /*************************************************************************
2214  * ILFreeaPidl
2215  *
2216  * free a aPidl struct
2217  */
2218 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2219 {
2220     UINT   i;
2221
2222     if (apidl)
2223     {
2224         for (i = 0; i < cidl; i++)
2225             SHFree(apidl[i]);
2226         SHFree(apidl);
2227     }
2228 }
2229
2230 /*************************************************************************
2231  * ILCopyaPidl
2232  *
2233  * copies an aPidl struct
2234  */
2235 LPITEMIDLIST* _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl)
2236 {
2237     UINT i;
2238     LPITEMIDLIST *apidldest;
2239
2240     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2241     if (!apidlsrc)
2242         return NULL;
2243
2244     for (i = 0; i < cidl; i++)
2245         apidldest[i] = ILClone(apidlsrc[i]);
2246
2247     return apidldest;
2248 }
2249
2250 /*************************************************************************
2251  * _ILCopyCidaToaPidl
2252  *
2253  * creates aPidl from CIDA
2254  */
2255 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
2256 {
2257     UINT i;
2258     LPITEMIDLIST *dst;
2259
2260     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2261     if (!dst)
2262         return NULL;
2263
2264     if (pidl)
2265         *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
2266
2267     for (i = 0; i < cida->cidl; i++)
2268         dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
2269
2270     return dst;
2271 }