git.oblomov.eu Git - wine/blob - 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 NONAMELESSUNION
  34 #define NONAMELESSSTRUCT
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "winreg.h"
  38 #include "objbase.h"
  39 #include "shlguid.h"
  40 #include "winerror.h"
  41 #include "winnls.h"
  42 #include "undocshell.h"
  43 #include "shell32_main.h"
  44 #include "shellapi.h"
  45 #include "shlwapi.h"
  46
  47 #include "pidl.h"
  48 #include "debughlp.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 /*************************************************************************
  59  * ILGetDisplayNameEx           [SHELL32.186]
  60  *
  61  * Retrieves the display name of an ItemIDList
  62  *
  63  * PARAMS
  64  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  65  *  pidl       [I]   ItemIDList relativ to the psf to get the display name for
  66  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  67  *  type       [I]   Type of display name to retrieve
  68  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  69  *                    1 = SHGDN_NORMAL relative to the root folder
  70  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  71  *
  72  * RETURNS
  73  *  True if the display name could be retrieved successfully, False otherwise
  74  */
  75 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  76 {
  77         BOOL ret = FALSE;
  78         WCHAR wPath[MAX_PATH];
  79
  80         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
  81
  82         if (!pidl || !path)
  83           return FALSE;
  84
  85         ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  86         WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  87         TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  88
  89         return ret;
  90 }
  91
  92 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  93 {
  94         LPSHELLFOLDER psfParent, lsf = psf;
  95         HRESULT ret = NO_ERROR;
  96         LPCITEMIDLIST pidllast;
  97         STRRET strret;
  98         DWORD flag;
  99
 100         TRACE("%p %p %p %ld\n", psf, pidl, path, type);
 101
 102         if (!pidl || !path)
 103           return FALSE;
 104
 105         if (!lsf)
 106         {
 107           ret = SHGetDesktopFolder(&lsf);
 108           if (FAILED(ret))
 109             return FALSE;
 110         }
 111
 112         if (type >= 0 && type <= 2)
 113         {
 114           switch (type)
 115           {
 116             case ILGDN_FORPARSING:
 117               flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 118               break;
 119             case ILGDN_NORMAL:
 120               flag = SHGDN_NORMAL;
 121               break;
 122             case ILGDN_INFOLDER:
 123               flag = SHGDN_INFOLDER;
 124               break;
 125             default:
 126               FIXME("Unknown type parameter = %lx\n", type);
 127               flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 128               break;
 129           }
 130           if (!*(LPWORD)pidl || type == ILGDN_FORPARSING)
 131           {
 132             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 133             if (SUCCEEDED(ret))
 134             {
 135               ret = StrRetToStrNW(path, MAX_PATH, &strret, pidl);
 136             }
 137           }
 138           else
 139           {
 140             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 141             if (SUCCEEDED(ret))
 142             {
 143               ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 144               if (SUCCEEDED(ret))
 145               {
 146                 ret = StrRetToStrNW(path, MAX_PATH, &strret, pidllast);
 147               }
 148               IShellFolder_Release(psfParent);
 149             }
 150           }
 151         }
 152
 153         TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 154
 155         if (!psf)
 156           IShellFolder_Release(lsf);
 157         return SUCCEEDED(ret);
 158 }
 159
 160 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 161 {
 162         TRACE_(shell)("%p %p %p %ld\n", psf, pidl, path, type);
 163         if (SHELL_OsIsUnicode())
 164           return ILGetDisplayNameExW(psf, pidl, path, type);
 165         return ILGetDisplayNameExA(psf, pidl, path, type);
 166 }
 167
 168 /*************************************************************************
 169  * ILGetDisplayName                     [SHELL32.15]
 170  */
 171 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 172 {
 173         TRACE_(shell)("%p %p\n", pidl, path);
 174         if (SHELL_OsIsUnicode())
 175           return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 176         return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 177 }
 178
 179 /*************************************************************************
 180  * ILFindLastID [SHELL32.16]
 181  *
 182  * NOTES
 183  *   observed: pidl=Desktop return=pidl
 184  */
 185 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 186 {
 187         LPCITEMIDLIST   pidlLast = pidl;
 188
 189         TRACE("(pidl=%p)\n",pidl);
 190
 191         if (!pidl)
 192           return NULL;
 193
 194         while (pidl->mkid.cb)
 195         {
 196           pidlLast = pidl;
 197           pidl = ILGetNext(pidl);
 198         }
 199         return (LPITEMIDLIST)pidlLast;
 200 }
 201 /*************************************************************************
 202  * ILRemoveLastID [SHELL32.17]
 203  *
 204  * NOTES
 205  *   when pidl=Desktop return=FALSE
 206  */
 207 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
 208 {
 209         TRACE_(shell)("pidl=%p\n",pidl);
 210
 211         if (!pidl || !pidl->mkid.cb)
 212           return 0;
 213         ILFindLastID(pidl)->mkid.cb = 0;
 214         return 1;
 215 }
 216
 217 /*************************************************************************
 218  * ILClone [SHELL32.18]
 219  *
 220  * NOTES
 221  *    duplicate an idlist
 222  */
 223 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 224 { DWORD    len;
 225   LPITEMIDLIST  newpidl;
 226
 227   if (!pidl)
 228     return NULL;
 229
 230   len = ILGetSize(pidl);
 231   newpidl = (LPITEMIDLIST)SHAlloc(len);
 232   if (newpidl)
 233     memcpy(newpidl,pidl,len);
 234
 235   TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 236   pdump(pidl);
 237
 238   return newpidl;
 239 }
 240 /*************************************************************************
 241  * ILCloneFirst [SHELL32.19]
 242  *
 243  * NOTES
 244  *  duplicates the first idlist of a complex pidl
 245  */
 246 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 247 {       DWORD len;
 248         LPITEMIDLIST pidlNew = NULL;
 249
 250         TRACE("pidl=%p \n",pidl);
 251         pdump(pidl);
 252
 253         if (pidl)
 254         {
 255           len = pidl->mkid.cb;
 256           pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 257           if (pidlNew)
 258           {
 259             memcpy(pidlNew,pidl,len+2);         /* 2 -> mind a desktop pidl */
 260
 261             if (len)
 262               ILGetNext(pidlNew)->mkid.cb = 0x00;
 263           }
 264         }
 265         TRACE("-- newpidl=%p\n",pidlNew);
 266
 267         return pidlNew;
 268 }
 269
 270 /*************************************************************************
 271  * ILLoadFromStream (SHELL32.26)
 272  *
 273  * NOTES
 274  *   the first two bytes are the len, the pidl is following then
 275  */
 276 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 277 {       WORD            wLen = 0;
 278         DWORD           dwBytesRead;
 279         HRESULT         ret = E_FAIL;
 280
 281
 282         TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 283
 284         if (*ppPidl)
 285         { SHFree(*ppPidl);
 286           *ppPidl = NULL;
 287         }
 288
 289         IStream_AddRef (pStream);
 290
 291         if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 292         {
 293           TRACE("PIDL length is %d\n", wLen);
 294           if (wLen != 0) {
 295             *ppPidl = SHAlloc (wLen);
 296             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead))) {
 297                 TRACE("Stream read OK\n");
 298                 ret = S_OK;
 299             } else {
 300                 WARN("reading pidl failed\n");
 301                 SHFree(*ppPidl);
 302                 *ppPidl = NULL;
 303             }
 304           } else {
 305             *ppPidl = NULL;
 306             ret = S_OK;
 307           }
 308         }
 309
 310         /* we are not yet fully compatible */
 311         if (*ppPidl && !pcheck(*ppPidl))
 312         {
 313           WARN("Check failed\n");
 314           SHFree(*ppPidl);
 315           *ppPidl = NULL;
 316         }
 317
 318
 319         IStream_Release (pStream);
 320         TRACE("done\n");
 321         return ret;
 322 }
 323
 324 /*************************************************************************
 325  * ILSaveToStream (SHELL32.27)
 326  *
 327  * NOTES
 328  *   the first two bytes are the len, the pidl is following then
 329  */
 330 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 331 {
 332         LPCITEMIDLIST   pidl;
 333         WORD            wLen = 0;
 334         HRESULT         ret = E_FAIL;
 335
 336         TRACE_(shell)("%p %p\n", pStream, pPidl);
 337
 338         IStream_AddRef (pStream);
 339
 340         pidl = pPidl;
 341         while (pidl->mkid.cb)
 342         {
 343           wLen += sizeof(WORD) + pidl->mkid.cb;
 344           pidl = ILGetNext(pidl);
 345         }
 346
 347         if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 348         {
 349           if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 350           { ret = S_OK;
 351           }
 352         }
 353         IStream_Release (pStream);
 354
 355         return ret;
 356 }
 357
 358 /*************************************************************************
 359  * SHILCreateFromPath        [SHELL32.28]
 360  *
 361  * Create an ItemIDList from a path
 362  *
 363  * PARAMS
 364  *  path       [I]
 365  *  ppidl      [O]
 366  *  attributes [I/O] requested attributes on call and actual attributes when
 367  *                   the function returns
 368  *
 369  * RETURNS
 370  *  NO_ERROR if successful, or an OLE errer code otherwise
 371  *
 372  * NOTES
 373  *  Wrapper for IShellFolder_ParseDisplayName().
 374  */
 375 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 376 {
 377         LPSHELLFOLDER sf;
 378         WCHAR lpszDisplayName[MAX_PATH];
 379         DWORD pchEaten;
 380         HRESULT ret = E_FAIL;
 381
 382         TRACE_(shell)("%s %p 0x%08lx\n", path, ppidl, attributes ? *attributes : 0);
 383
 384         if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 385           lpszDisplayName[MAX_PATH-1] = 0;
 386
 387         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 388         {
 389           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, lpszDisplayName, &pchEaten, ppidl, attributes);
 390           IShellFolder_Release(sf);
 391         }
 392         return ret;
 393 }
 394
 395 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 396 {
 397         LPSHELLFOLDER sf;
 398         DWORD pchEaten;
 399         HRESULT ret = E_FAIL;
 400
 401         TRACE_(shell)("%s %p 0x%08lx\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 402
 403         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 404         {
 405           ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 406           IShellFolder_Release(sf);
 407         }
 408         return ret;
 409 }
 410
 411 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 412 {
 413         if ( SHELL_OsIsUnicode())
 414           return SHILCreateFromPathW (path, ppidl, attributes);
 415         return SHILCreateFromPathA (path, ppidl, attributes);
 416 }
 417
 418 /*************************************************************************
 419  * SHCloneSpecialIDList      [SHELL32.89]
 420  *
 421  * Create an ItemIDList to one of the special folders.
 422
 423  * PARAMS
 424  *  hwndOwner   [in]
 425  *  nFolder             [in]    CSIDL_xxxxx
 426  *  fCreate             [in]    Create folder if it does not exist
 427  *
 428  * RETURNS
 429  *  Success: The newly created pidl
 430  *  Failure: NULL, if inputs are invalid.
 431  *
 432  * NOTES
 433  *  exported by ordinal.
 434  *  Caller is responsible for deallocating the returned ItemIDList with the
 435  *  shells IMalloc interface, aka ILFree.
 436  */
 437 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 438 {       LPITEMIDLIST ppidl;
 439         TRACE_(shell)("(hwnd=%p,csidl=0x%lx,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 440
 441         if (fCreate)
 442           nFolder |= CSIDL_FLAG_CREATE;
 443
 444         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 445         return ppidl;
 446 }
 447
 448 /*************************************************************************
 449  * ILGlobalClone             [SHELL32.20]
 450  *
 451  * Clones an ItemIDList using Alloc.
 452  *
 453  * PARAMS
 454  *  pidl       [I]   ItemIDList to clone
 455  *
 456  * RETURNS
 457  *  Newly allocated ItemIDList.
 458  *
 459  * NOTES
 460  *  exported by ordinal.
 461  */
 462 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 463 {       DWORD    len;
 464         LPITEMIDLIST  newpidl;
 465
 466         if (!pidl)
 467           return NULL;
 468
 469         len = ILGetSize(pidl);
 470         newpidl = (LPITEMIDLIST)Alloc(len);
 471         if (newpidl)
 472           memcpy(newpidl,pidl,len);
 473
 474         TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 475         pdump(pidl);
 476
 477         return newpidl;
 478 }
 479
 480 /*************************************************************************
 481  * ILIsEqual [SHELL32.21]
 482  *
 483  */
 484 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 485 {
 486         char    szData1[MAX_PATH];
 487         char    szData2[MAX_PATH];
 488
 489         LPCITEMIDLIST pidltemp1 = pidl1;
 490         LPCITEMIDLIST pidltemp2 = pidl2;
 491
 492         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 493
 494         /* explorer reads from registry directly (StreamMRU),
 495            so we can only check here */
 496         if ((!pcheck (pidl1)) || (!pcheck (pidl2))) return FALSE;
 497
 498         pdump (pidl1);
 499         pdump (pidl2);
 500
 501         if ( (!pidl1) || (!pidl2) ) return FALSE;
 502
 503         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 504         {
 505             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 506             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 507
 508             if (strcasecmp ( szData1, szData2 )!=0 )
 509               return FALSE;
 510
 511             pidltemp1 = ILGetNext(pidltemp1);
 512             pidltemp2 = ILGetNext(pidltemp2);
 513         }
 514
 515         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 516         {
 517           return TRUE;
 518         }
 519
 520         return FALSE;
 521 }
 522 /*************************************************************************
 523  * ILIsParent                [SHELL32.23]
 524  *
 525  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 526  *
 527  * PARAMS
 528  *  pidlParent [I]
 529  *  pidlChild  [I]
 530  *  bImmediate [I]   only return true if the parent is the direct parent
 531  *                   of the child
 532  *
 533  * RETURNS
 534  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 535  *  False otherwise.
 536  *
 537  * NOTES
 538  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 539  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 540  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 541  */
 542 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 543 {
 544         char    szData1[MAX_PATH];
 545         char    szData2[MAX_PATH];
 546
 547         LPCITEMIDLIST pParent = pidlParent;
 548         LPCITEMIDLIST pChild = pidlChild;
 549
 550         TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 551
 552         if (!pParent || !pChild) return FALSE;
 553
 554         while (pParent->mkid.cb && pChild->mkid.cb)
 555         {
 556           _ILSimpleGetText(pParent, szData1, MAX_PATH);
 557           _ILSimpleGetText(pChild, szData2, MAX_PATH);
 558
 559           if (strcasecmp ( szData1, szData2 )!=0 )
 560             return FALSE;
 561
 562           pParent = ILGetNext(pParent);
 563           pChild = ILGetNext(pChild);
 564         }
 565
 566         if ( pParent->mkid.cb || ! pChild->mkid.cb) /* child shorter or has equal length to parent */
 567           return FALSE;
 568
 569         if ( ILGetNext(pChild)->mkid.cb && bImmediate) /* not immediate descent */
 570           return FALSE;
 571
 572         return TRUE;
 573 }
 574
 575 /*************************************************************************
 576  * ILFindChild               [SHELL32.24]
 577  *
 578  *  Compares elements from pidl1 and pidl2.
 579  *
 580  * PARAMS
 581  *  pidl1      [I]
 582  *  pidl2      [I]
 583  *
 584  * RETURNS
 585  *  pidl1 is desktop      pidl2
 586  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 587  *                        if there was at least one equal element
 588  *  pidl2 shorter pidl1   0
 589  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 590  *
 591  * NOTES
 592  *  exported by ordinal.
 593  */
 594 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 595 {
 596         char    szData1[MAX_PATH];
 597         char    szData2[MAX_PATH];
 598
 599         LPCITEMIDLIST pidltemp1 = pidl1;
 600         LPCITEMIDLIST pidltemp2 = pidl2;
 601         LPCITEMIDLIST ret=NULL;
 602
 603         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 604
 605         /* explorer reads from registry directly (StreamMRU),
 606            so we can only check here */
 607         if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 608           return FALSE;
 609
 610         pdump (pidl1);
 611         pdump (pidl2);
 612
 613         if ( _ILIsDesktop(pidl1) )
 614         {
 615           ret = pidl2;
 616         }
 617         else
 618         {
 619           while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 620           {
 621             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 622             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 623
 624             if (strcasecmp(szData1,szData2))
 625               break;
 626
 627             pidltemp1 = ILGetNext(pidltemp1);
 628             pidltemp2 = ILGetNext(pidltemp2);
 629             ret = pidltemp2;
 630           }
 631
 632           if (pidltemp1->mkid.cb)
 633           {
 634             ret = NULL; /* elements of pidl1 left*/
 635           }
 636         }
 637         TRACE_(shell)("--- %p\n", ret);
 638         return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 639 }
 640
 641 /*************************************************************************
 642  * ILCombine                 [SHELL32.25]
 643  *
 644  * Concatenates two complex ItemIDLists.
 645  *
 646  * PARAMS
 647  *  pidl1      [I]   first complex ItemIDLists
 648  *  pidl2      [I]   complex ItemIDLists to append
 649  *
 650  * RETURNS
 651  *  if both pidl's == NULL      NULL
 652  *  if pidl1 == NULL            cloned pidl2
 653  *  if pidl2 == NULL            cloned pidl1
 654  *  otherwise new pidl with pidl2 appended to pidl1
 655  *
 656  * NOTES
 657  *  exported by ordinal.
 658  *  Does not destroy the passed in ItemIDLists!
 659  */
 660 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 661 {
 662         DWORD    len1,len2;
 663         LPITEMIDLIST  pidlNew;
 664
 665         TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 666
 667         if(!pidl1 && !pidl2) return NULL;
 668
 669         pdump (pidl1);
 670         pdump (pidl2);
 671
 672         if(!pidl1)
 673         {
 674           pidlNew = ILClone(pidl2);
 675           return pidlNew;
 676         }
 677
 678         if(!pidl2)
 679         {
 680           pidlNew = ILClone(pidl1);
 681           return pidlNew;
 682         }
 683
 684         len1  = ILGetSize(pidl1)-2;
 685         len2  = ILGetSize(pidl2);
 686         pidlNew  = SHAlloc(len1+len2);
 687
 688         if (pidlNew)
 689         {
 690           memcpy(pidlNew,pidl1,len1);
 691           memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 692         }
 693
 694         /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 695         return pidlNew;
 696 }
 697
 698 /*************************************************************************
 699  *  SHGetRealIDL [SHELL32.98]
 700  *
 701  * NOTES
 702  */
 703 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 704 {
 705         IDataObject* pDataObj;
 706         HRESULT hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple, &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 707
 708         if (SUCCEEDED(hr)) {
 709             STGMEDIUM medium;
 710             FORMATETC fmt;
 711
 712             fmt.cfFormat = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
 713             fmt.ptd = NULL;
 714             fmt.dwAspect = DVASPECT_CONTENT;
 715             fmt.lindex = -1;
 716             fmt.tymed = TYMED_HGLOBAL;
 717
 718             hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 719
 720             IDataObject_Release(pDataObj);
 721
 722             if (SUCCEEDED(hr)) {
 723                 /*assert(pida->cidl==1);*/
 724                 LPIDA pida = (LPIDA)GlobalLock(medium.u.hGlobal);
 725
 726                 LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 727                 LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 728
 729                 *pidlReal = ILCombine(pidl_folder, pidl_child);
 730
 731                 if (!*pidlReal)
 732                         hr = E_OUTOFMEMORY;
 733
 734                 GlobalUnlock(medium.u.hGlobal);
 735                 GlobalFree(medium.u.hGlobal);
 736             }
 737         }
 738
 739         return hr;
 740 }
 741
 742 /*************************************************************************
 743  *  SHLogILFromFSIL [SHELL32.95]
 744  *
 745  * NOTES
 746  *  pild = CSIDL_DESKTOP        ret = 0
 747  *  pild = CSIDL_DRIVES         ret = 0
 748  */
 749 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 750 {
 751         FIXME("(pidl=%p)\n",pidl);
 752
 753         pdump(pidl);
 754
 755         return 0;
 756 }
 757
 758 /*************************************************************************
 759  * ILGetSize                 [SHELL32.152]
 760  *
 761  * Gets the byte size of an ItemIDList including zero terminator
 762  *
 763  * PARAMS
 764  *  pidl       [I]   ItemIDList
 765  *
 766  * RETURNS
 767  *  size of pidl in bytes
 768  *
 769  * NOTES
 770  *  exported by ordinal
 771  */
 772 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 773 {
 774         LPCSHITEMID si = &(pidl->mkid);
 775         UINT len=0;
 776
 777         if (pidl)
 778         { while (si->cb)
 779           { len += si->cb;
 780             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 781           }
 782           len += 2;
 783         }
 784         TRACE("pidl=%p size=%u\n",pidl, len);
 785         return len;
 786 }
 787
 788 /*************************************************************************
 789  * ILGetNext                 [SHELL32.153]
 790  *
 791  * Gets the next ItemID of an ItemIDList
 792  *
 793  * PARAMS
 794  *  pidl       [I]   ItemIDList
 795  *
 796  * RETURNS
 797  *  null -> null
 798  *  desktop -> null
 799  *  simple pidl -> pointer to 0x0000 element
 800  *
 801  * NOTES
 802  *  exported by ordinal.
 803  */
 804 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 805 {
 806         WORD len;
 807
 808         TRACE("%p\n", pidl);
 809
 810         if(pidl)
 811         {
 812           len =  pidl->mkid.cb;
 813           if (len)
 814           {
 815             pidl = (LPITEMIDLIST) (((LPBYTE)pidl)+len);
 816             TRACE("-- %p\n", pidl);
 817             return (LPITEMIDLIST)pidl;
 818           }
 819         }
 820         return NULL;
 821 }
 822
 823 /*************************************************************************
 824  * ILAppend                  [SHELL32.154]
 825  *
 826  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 827  * If bEnd is FALSE, inserts the item in the front of the list,
 828  * otherwise it adds the item to the end. (???)
 829  *
 830  * PARAMS
 831  *  pidl       [I]   ItemIDList to extend
 832  *  item       [I]   ItemID to prepend/append
 833  *  bEnd       [I]   Indicates if the item should be appended
 834  *
 835  * NOTES
 836  *  Destroys the passed in idlist! (???)
 837  */
 838 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 839 {
 840         LPITEMIDLIST idlRet;
 841
 842         WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 843
 844         pdump (pidl);
 845         pdump (item);
 846
 847         if (_ILIsDesktop(pidl))
 848         {
 849            idlRet = ILClone(item);
 850            if (pidl)
 851              SHFree (pidl);
 852            return idlRet;
 853         }
 854
 855         if (bEnd)
 856         {
 857           idlRet = ILCombine(pidl, item);
 858         }
 859         else
 860         {
 861           idlRet = ILCombine(item, pidl);
 862         }
 863
 864         SHFree(pidl);
 865         return idlRet;
 866 }
 867
 868 /*************************************************************************
 869  * ILFree                    [SHELL32.155]
 870  *
 871  * Frees memory (if not NULL) allocated by SHMalloc allocator
 872  *
 873  * PARAMS
 874  *  pidl         [I]
 875  *
 876  * NOTES
 877  *  exported by ordinal
 878  */
 879 void WINAPI ILFree(LPITEMIDLIST pidl)
 880 {
 881         TRACE("(pidl=%p)\n",pidl);
 882         if(pidl) SHFree(pidl);
 883 }
 884
 885 /*************************************************************************
 886  * ILGlobalFree              [SHELL32.156]
 887  *
 888  * Frees memory (if not NULL) allocated by Alloc allocator
 889  *
 890  * PARAMS
 891  *  pidl         [I]
 892  *
 893  * NOTES
 894  *  exported by ordinal.
 895  */
 896 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 897 {
 898         TRACE("%p\n", pidl);
 899
 900         if(!pidl) return;
 901         Free(pidl);
 902 }
 903
 904 /*************************************************************************
 905  * ILCreateFromPathA         [SHELL32.189]
 906  *
 907  * Creates a complex ItemIDList from a path and returns it.
 908  *
 909  * PARAMS
 910  *  path         [I]
 911  *
 912  * RETURNS
 913  *  the newly created complex ItemIDList or NULL if failed
 914  *
 915  * NOTES
 916  *  exported by ordinal.
 917  */
 918
 919 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 920 {
 921         LPITEMIDLIST pidlnew = NULL;
 922
 923         TRACE_(shell)("%s\n", debugstr_a(path));
 924
 925         if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 926           return pidlnew;
 927         return NULL;
 928 }
 929
 930 /*************************************************************************
 931  * ILCreateFromPathW         [SHELL32.190]
 932  */
 933 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 934 {
 935         LPITEMIDLIST pidlnew = NULL;
 936
 937         TRACE_(shell)("%s\n", debugstr_w(path));
 938
 939         if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 940           return pidlnew;
 941         return NULL;
 942 }
 943
 944 /*************************************************************************
 945  * ILCreateFromPath          [SHELL32.157]
 946  */
 947 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 948 {
 949         if ( SHELL_OsIsUnicode())
 950           return ILCreateFromPathW (path);
 951         return ILCreateFromPathA (path);
 952 }
 953
 954 /*************************************************************************
 955  * _ILParsePathW             [internal]
 956  *
 957  * Creates an ItemIDList from a path and returns it.
 958  *
 959  * PARAMS
 960  *  path         [I]   path to parse and convert into an ItemIDList
 961  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 962  *                     Bind Data object with
 963  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 964  *                     FileSystem Bind Data object
 965  *  ppidl        [O]   the newly create ItemIDList
 966  *  prgfInOut    [I/O] requested attributes on input and actual
 967  *                     attributes on return
 968  *
 969  * RETURNS
 970  *  NO_ERROR on success or an OLE error code
 971  *
 972  * NOTES
 973  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 974  *  creates a BindContext object and assigns a FileSystem Bind Data object
 975  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 976  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 977  *  to pass data about the current path element to the next object. This
 978  *  is used to avoid having to verify the current path element on disk, so
 979  *  that creating an ItemIDList from a non-existent path still can work.
 980  */
 981 static HRESULT WINAPI _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 982                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
 983 {
 984         LPSHELLFOLDER pSF = NULL;
 985         LPBC pBC = NULL;
 986         HRESULT ret;
 987
 988         TRACE("%s %p %d (%p)->%p (%p)->0x%lx\n", debugstr_w(path), lpFindFile, bBindCtx,
 989                                                  ppidl, ppidl ? *ppidl : NULL,
 990                                                  prgfInOut, prgfInOut ? *prgfInOut : 0);
 991
 992         ret = SHGetDesktopFolder(&pSF);
 993         if (FAILED(ret))
 994         {
 995           return ret;
 996         }
 997
 998         if (lpFindFile || bBindCtx)
 999           ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1000
1001         if (SUCCEEDED(ret))
1002         {
1003           ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1004         }
1005
1006         if (pBC)
1007         {
1008           IBindCtx_Release(pBC);
1009           pBC = NULL;
1010         }
1011
1012         IShellFolder_Release(pSF);
1013
1014         if (!SUCCEEDED(ret) && ppidl)
1015           *ppidl = NULL;
1016
1017         TRACE("%s %p 0x%lx\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1018
1019         return ret;
1020 }
1021
1022 /*************************************************************************
1023  * SHSimpleIDListFromPath    [SHELL32.162]
1024  *
1025  * Creates a simple ItemIDList from a path and returns it. This function
1026  * does not fail on non-existent paths.
1027  *
1028  * PARAMS
1029  *  path         [I]   path to parse and convert into an ItemIDList
1030  *
1031  * RETURNS
1032  *  the newly created simple ItemIDList
1033  *
1034  * NOTES
1035  *  Simple in the name does not mean a relative ItemIDList but rather a
1036  *  fully qualified list, where only the file name is filled in and the
1037  *  directory flag for those ItemID elements this is known about, eg.
1038  *  it is not the last element in the ItemIDList or the actual directory
1039  *  exists on disk.
1040  *  exported by ordinal.
1041  */
1042 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1043 {
1044     LPITEMIDLIST pidl = NULL;
1045     LPWSTR wPath = NULL;
1046     int len;
1047
1048     TRACE("%s\n", debugstr_a(lpszPath));
1049
1050     if (lpszPath)
1051     {
1052         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1053         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1054         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1055     }
1056
1057     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1058
1059     if (wPath) HeapFree(GetProcessHeap(), 0, wPath);
1060     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1061     return pidl;
1062 }
1063
1064 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1065 {
1066         LPITEMIDLIST pidl = NULL;
1067
1068         TRACE("%s\n", debugstr_w(lpszPath));
1069
1070         _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1071         TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1072         return pidl;
1073 }
1074
1075 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1076 {
1077         if ( SHELL_OsIsUnicode())
1078           return SHSimpleIDListFromPathW (lpszPath);
1079         return SHSimpleIDListFromPathA (lpszPath);
1080 }
1081
1082 /*************************************************************************
1083  * SHGetSpecialFolderLocation           [SHELL32.@]
1084  *
1085  * gets the folder locations from the registry and creates a pidl
1086  * creates missing reg keys and directories
1087  *
1088  * PARAMS
1089  *   hwndOwner [I]
1090  *   nFolder   [I] CSIDL_xxxxx
1091  *   ppidl     [O] PIDL of a special folder
1092  *
1093  * NOTES
1094  *   In NT5, SHGetSpecialFolderLocation needs the <winntdir>/Recent
1095  *   directory. If the directory is missing it returns a x80070002.
1096  */
1097 HRESULT WINAPI SHGetSpecialFolderLocation(
1098         HWND hwndOwner,
1099         INT nFolder,
1100         LPITEMIDLIST * ppidl)
1101 {
1102         CHAR            szPath[MAX_PATH];
1103         HRESULT         hr = E_INVALIDARG;
1104
1105         TRACE_(shell)("(%p,0x%x,%p)\n", hwndOwner,nFolder,ppidl);
1106
1107         if (ppidl)
1108         {
1109           *ppidl = NULL;
1110           switch (nFolder)
1111           {
1112             case CSIDL_DESKTOP:
1113               *ppidl = _ILCreateDesktop();
1114               break;
1115
1116             case CSIDL_DRIVES:
1117               *ppidl = _ILCreateMyComputer();
1118               break;
1119
1120             case CSIDL_NETWORK:
1121               *ppidl = _ILCreateNetwork ();
1122               break;
1123
1124             case CSIDL_CONTROLS:
1125               *ppidl = _ILCreateControl ();
1126               break;
1127
1128             case CSIDL_PRINTERS:
1129               *ppidl = _ILCreatePrinter ();
1130               break;
1131
1132             case CSIDL_BITBUCKET:
1133               *ppidl = _ILCreateBitBucket ();
1134               break;
1135
1136             default:
1137               if (SHGetSpecialFolderPathA(hwndOwner, szPath, nFolder, TRUE))
1138               {
1139                 DWORD attributes=0;
1140                 TRACE_(shell)("Value=%s\n",szPath);
1141                 hr = SHILCreateFromPathA(szPath, ppidl, &attributes);
1142               }
1143           }
1144           if(*ppidl) hr = NOERROR;
1145         }
1146
1147         TRACE_(shell)("-- (new pidl %p)\n",*ppidl);
1148         return hr;
1149 }
1150
1151 /*************************************************************************
1152  * SHGetFolderLocation [SHELL32.@]
1153  *
1154  * NOTES
1155  *  the pidl can be a simple one. since we can't get the path out of the pidl
1156  *  we have to take all data from the pidl
1157  */
1158 HRESULT WINAPI SHGetFolderLocation(
1159         HWND hwnd,
1160         int csidl,
1161         HANDLE hToken,
1162         DWORD dwFlags,
1163         LPITEMIDLIST *ppidl)
1164 {
1165         FIXME("%p 0x%08x %p 0x%08lx %p\n",
1166          hwnd, csidl, hToken, dwFlags, ppidl);
1167         return SHGetSpecialFolderLocation(hwnd, csidl, ppidl);
1168 }
1169
1170 /*************************************************************************
1171  * SHGetDataFromIDListA [SHELL32.247]
1172  *
1173  * NOTES
1174  *  the pidl can be a simple one. since we can't get the path out of the pidl
1175  *  we have to take all data from the pidl
1176  */
1177 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1178 {
1179         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1180
1181         pdump(pidl);
1182         if (!psf || !dest )  return E_INVALIDARG;
1183
1184         switch (nFormat)
1185         {
1186           case SHGDFIL_FINDDATA:
1187             {
1188                LPSTR filename, shortname;
1189                WIN32_FIND_DATAA * pfd = dest;
1190
1191                if (_ILIsDrive(pidl))
1192                    return E_INVALIDARG;
1193
1194                if (len < (int)sizeof(WIN32_FIND_DATAA)) return E_INVALIDARG;
1195
1196                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1197                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1198                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1199                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1200
1201                filename = _ILGetTextPointer(pidl);
1202                shortname = _ILGetSTextPointer(pidl);
1203
1204                if (filename)
1205                    lstrcpynA(pfd->cFileName, filename, MAX_PATH);
1206                else
1207                    pfd->cFileName[0] = '\0';
1208
1209                if (shortname)
1210                    lstrcpynA(pfd->cAlternateFileName, shortname, MAX_PATH);
1211                else
1212                    pfd->cAlternateFileName[0] = '\0';
1213             }
1214             return NOERROR;
1215
1216           case SHGDFIL_NETRESOURCE:
1217           case SHGDFIL_DESCRIPTIONID:
1218             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1219             break;
1220
1221           default:
1222             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1223         }
1224
1225         return E_INVALIDARG;
1226 }
1227
1228 /*************************************************************************
1229  * SHGetDataFromIDListW [SHELL32.248]
1230  *
1231  */
1232 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
1233 {
1234         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1235
1236         pdump(pidl);
1237
1238         if (! psf || !dest )  return E_INVALIDARG;
1239
1240         switch (nFormat)
1241         {
1242           case SHGDFIL_FINDDATA:
1243             {
1244                LPSTR filename, shortname;
1245                WIN32_FIND_DATAW * pfd = dest;
1246
1247                if (_ILIsDrive(pidl))
1248                    return E_INVALIDARG;
1249
1250                if (len < (int)sizeof(WIN32_FIND_DATAW)) return E_INVALIDARG;
1251
1252                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1253                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1254                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1255                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1256
1257                filename = _ILGetTextPointer(pidl);
1258                shortname = _ILGetSTextPointer(pidl);
1259
1260                if (!filename)
1261                    pfd->cFileName[0] = '\0';
1262                else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1263                    pfd->cFileName[MAX_PATH-1] = 0;
1264
1265                if (!shortname)
1266                    pfd->cAlternateFileName[0] = '\0';
1267                else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1268                    pfd->cAlternateFileName[13] = 0;
1269             }
1270             return NOERROR;
1271           case SHGDFIL_NETRESOURCE:
1272           case SHGDFIL_DESCRIPTIONID:
1273             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1274             break;
1275
1276           default:
1277             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1278         }
1279
1280         return E_INVALIDARG;
1281 }
1282
1283 /*************************************************************************
1284  * SHELL_GetPathFromIDListA
1285  */
1286 HRESULT SHELL_GetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath, UINT uOutSize)
1287 {
1288         HRESULT hr = S_OK;
1289
1290         pszPath[0]=0;
1291
1292         /* One case is a PIDL rooted at desktop level */
1293         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1294             hr = SHGetSpecialFolderPathA(0, pszPath, CSIDL_DESKTOP, FALSE);
1295
1296             if (SUCCEEDED(hr))
1297                 PathAddBackslashA(pszPath);
1298         }
1299         /* The only other valid case is a item ID list beginning at "My Computer" */
1300         else if (_ILIsMyComputer(pidl))
1301             pidl = ILGetNext(pidl);
1302
1303         if (SUCCEEDED(hr)) {
1304             LPSTR txt;
1305
1306             while(pidl && pidl->mkid.cb) {
1307                 if (_ILIsSpecialFolder(pidl))
1308                     {hr = E_INVALIDARG; break;}
1309
1310                 txt = _ILGetTextPointer(pidl);
1311                 if (!txt)
1312                     {hr = E_INVALIDARG; break;}
1313
1314                 if (lstrlenA(txt) > pidl->mkid.cb)
1315                     ERR("pidl %p is borked\n",pidl);
1316
1317                 /* make sure there's enough space for the next segment */
1318                 if ( (lstrlenA(txt) + lstrlenA(pszPath)) > uOutSize)
1319                     {hr = E_INVALIDARG; break;}
1320                 lstrcatA( pszPath, txt );
1321
1322                 pidl = ILGetNext(pidl);
1323                 if (!pidl)
1324                     {hr = E_INVALIDARG; break;}
1325
1326                 if (!pidl->mkid.cb) {
1327                     /* We are at the end and successfully converted the complete PIDL. */
1328                     break;
1329                 }
1330
1331                 if( (lstrlenA(pszPath) + 1) > uOutSize)
1332                     {hr = E_INVALIDARG; break;}
1333                 if (!PathAddBackslashA(pszPath))
1334                     {hr = E_INVALIDARG; break;}
1335             }
1336         } else
1337             hr = E_INVALIDARG;
1338
1339         TRACE_(shell)("-- %s, 0x%08lx\n", pszPath, hr);
1340         return hr;
1341 }
1342
1343 /*************************************************************************
1344  * SHGetPathFromIDListA         [SHELL32.@][NT 4.0: SHELL32.220]
1345  *
1346  * PARAMETERS
1347  *  pidl,   [IN] pidl
1348  *  pszPath [OUT] path
1349  *
1350  * RETURNS
1351  *  path from a passed PIDL.
1352  *
1353  * NOTES
1354  *      NULL returns FALSE
1355  *      desktop pidl gives path to desktop directory back
1356  *      special pidls returning FALSE
1357  */
1358 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1359 {
1360         HRESULT hr;
1361
1362         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1363         pdump(pidl);
1364
1365         if (!pidl)
1366             return FALSE;
1367
1368         hr = SHELL_GetPathFromIDListA(pidl, pszPath, MAX_PATH);
1369
1370         return SUCCEEDED(hr);
1371 }
1372
1373 /*************************************************************************
1374  * SHELL_GetPathFromIDListW
1375  */
1376 HRESULT SHELL_GetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath, UINT uOutSize)
1377 {
1378         HRESULT hr = S_OK;
1379         UINT len;
1380
1381         pszPath[0]=0;
1382
1383         /* One case is a PIDL rooted at desktop level */
1384         if (_ILIsValue(pidl) || _ILIsFolder(pidl)) {
1385             hr = SHGetSpecialFolderPathW(0, pszPath, CSIDL_DESKTOP, FALSE);
1386
1387             if (SUCCEEDED(hr))
1388                 PathAddBackslashW(pszPath);
1389         }
1390         /* The only other valid case is a item ID list beginning at "My Computer" */
1391         else if (_ILIsMyComputer(pidl))
1392             pidl = ILGetNext(pidl);
1393
1394         if (SUCCEEDED(hr)) {
1395             LPSTR txt;
1396
1397             while(pidl && pidl->mkid.cb) {
1398                 if (_ILIsSpecialFolder(pidl))
1399                     {hr = E_INVALIDARG; break;}
1400
1401                 txt = _ILGetTextPointer(pidl);
1402                 if (!txt)
1403                     {hr = E_INVALIDARG; break;}
1404
1405                 if (lstrlenA(txt) > pidl->mkid.cb)
1406                     ERR("pidl %p is borked\n",pidl);
1407                 len = MultiByteToWideChar(CP_ACP, 0, txt, -1, NULL, 0);
1408                 if ( (lstrlenW(pszPath) + len) > uOutSize )
1409                     {hr = E_INVALIDARG; break;}
1410
1411                 MultiByteToWideChar(CP_ACP, 0, txt, -1,
1412                                     &pszPath[lstrlenW(pszPath)], len);
1413
1414                 pidl = ILGetNext(pidl);
1415                 if (!pidl)
1416                     {hr = E_INVALIDARG; break;}
1417
1418                 if (!pidl->mkid.cb) {
1419                     /* We are at the end and successfully converted the complete PIDL. */
1420                     break;
1421                 }
1422
1423                 if ( (lstrlenW(pszPath) + 1) > uOutSize )
1424                     {hr = E_INVALIDARG; break;}
1425                 if (!PathAddBackslashW(pszPath))
1426                     {hr = E_INVALIDARG; break;}
1427             }
1428         } else
1429             hr = E_INVALIDARG;
1430
1431     TRACE_(shell)("-- %s, 0x%08lx\n", debugstr_w(pszPath), hr);
1432     return hr;
1433 }
1434
1435 /*************************************************************************
1436  * SHGetPathFromIDListW                         [SHELL32.@]
1437  */
1438 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1439 {
1440         HRESULT hr;
1441
1442         TRACE_(shell)("(pidl=%p,%p)\n", pidl, debugstr_w(pszPath));
1443         pdump(pidl);
1444
1445         if (!pidl)
1446             return FALSE;
1447
1448         hr = SHELL_GetPathFromIDListW(pidl, pszPath, MAX_PATH);
1449
1450         TRACE_(shell)("-- %s, 0x%08lx\n",debugstr_w(pszPath), hr);
1451         return SUCCEEDED(hr);
1452 }
1453
1454 /*************************************************************************
1455  * SHGetPathFromIDList          [SHELL32.@][NT 4.0: SHELL32.219]
1456  */
1457 BOOL WINAPI SHGetPathFromIDListAW(LPCITEMIDLIST pidl,LPVOID pszPath)
1458 {
1459         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1460
1461         if (SHELL_OsIsUnicode())
1462           return SHGetPathFromIDListW(pidl,pszPath);
1463         return SHGetPathFromIDListA(pidl,pszPath);
1464 }
1465
1466 /*************************************************************************
1467  *      SHBindToParent          [shell version 5.0]
1468  */
1469 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1470 {
1471         IShellFolder    * psf;
1472         LPITEMIDLIST    pidlChild, pidlParent;
1473         HRESULT         hr=E_FAIL;
1474
1475         TRACE_(shell)("pidl=%p\n", pidl);
1476         pdump(pidl);
1477
1478         *ppv = NULL;
1479         if (ppidlLast) *ppidlLast = NULL;
1480
1481         if (_ILIsPidlSimple(pidl))
1482         {
1483           /* we are on desktop level */
1484           if (ppidlLast)
1485             *ppidlLast = ILClone(pidl);
1486           hr = SHGetDesktopFolder((IShellFolder**)ppv);
1487         }
1488         else
1489         {
1490           pidlChild =  ILClone(ILFindLastID(pidl));
1491           pidlParent = ILClone(pidl);
1492           ILRemoveLastID(pidlParent);
1493
1494           hr = SHGetDesktopFolder(&psf);
1495
1496           if (SUCCEEDED(hr))
1497             hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1498
1499           if (SUCCEEDED(hr) && ppidlLast)
1500             *ppidlLast = pidlChild;
1501           else
1502             ILFree (pidlChild);
1503
1504           SHFree (pidlParent);
1505           if (psf) IShellFolder_Release(psf);
1506         }
1507
1508
1509         TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1510         return hr;
1511 }
1512
1513 /**************************************************************************
1514  *
1515  *              internal functions
1516  *
1517  *      ### 1. section creating pidls ###
1518  *
1519  *************************************************************************
1520  *  _ILCreateDesktop()
1521  *  _ILCreateIExplore()
1522  *  _ILCreateMyComputer()
1523  *  _ILCreateDrive()
1524  *  _ILCreateFolder()
1525  *  _ILCreateValue()
1526  */
1527 LPITEMIDLIST _ILCreateDesktop()
1528 {       TRACE("()\n");
1529         return _ILCreateWithTypeAndSize(PT_DESKTOP, 0);
1530 }
1531
1532 LPITEMIDLIST _ILCreateMyComputer()
1533 {       TRACE("()\n");
1534         return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1535 }
1536
1537 LPITEMIDLIST _ILCreateIExplore()
1538 {       TRACE("()\n");
1539         return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1540 }
1541
1542 LPITEMIDLIST _ILCreateControl()
1543 {       TRACE("()\n");
1544     /* FIXME: needs to be child of MyComputer */
1545         return _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1546 }
1547
1548 LPITEMIDLIST _ILCreatePrinter()
1549 {       TRACE("()\n");
1550     /* FIXME: needs to be child of MyComputer */
1551         return _ILCreateGuid(PT_SHELLEXT, &CLSID_Printers);
1552 }
1553
1554 LPITEMIDLIST _ILCreateNetwork()
1555 {       TRACE("()\n");
1556         return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1557 }
1558
1559 LPITEMIDLIST _ILCreateBitBucket()
1560 {       TRACE("()\n");
1561         return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1562 }
1563
1564 /**************************************************************************
1565  *  _ILCreateGuid()
1566  *  Creates a new PIDL with type type (which can be one of PT_SHELLEXT or
1567  *  PT_GUID) with the given GUID data.
1568  */
1569 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1570 {
1571     LPITEMIDLIST pidlOut;
1572
1573     if (type == PT_SHELLEXT || type == PT_GUID)
1574     {
1575         pidlOut = _ILCreateWithTypeAndSize(type, 2 + 2 + sizeof(GUID));
1576         if (pidlOut)
1577         {
1578             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1579
1580             memcpy(&(pData->u.guid.guid), guid, sizeof(GUID));
1581             TRACE("-- create GUID-pidl %s\n",
1582              debugstr_guid(&(pData->u.guid.guid)));
1583         }
1584     }
1585     else
1586     {
1587         WARN("%d: invalid type for GUID\n", type);
1588         pidlOut = NULL;
1589     }
1590     return pidlOut;
1591 }
1592
1593 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1594 {
1595         IID iid;
1596
1597         if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1598         {
1599           ERR("%s is not a GUID\n", szGUID);
1600           return NULL;
1601         }
1602         return _ILCreateGuid(PT_GUID, &iid);
1603 }
1604
1605 LPITEMIDLIST _ILCreateWithTypeAndSize(PIDLTYPE type, UINT size)
1606 {
1607     LPITEMIDLIST pidlOut = NULL, pidlTemp = NULL;
1608     LPPIDLDATA   pData;
1609
1610     if(!(pidlOut = SHAlloc(size + 2))) return NULL;
1611     ZeroMemory(pidlOut, size + 2);
1612     pidlOut->mkid.cb = size;
1613
1614     if ((pData = _ILGetDataPointer(pidlOut)))
1615         pData->type = type;
1616
1617     if ((pidlTemp = ILGetNext(pidlOut)))
1618         pidlTemp->mkid.cb = 0x00;
1619
1620     TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1621     return pidlOut;
1622 }
1623
1624 /**************************************************************************
1625  *  _ILCreateFromFindDataA()
1626  *  Creates a new PIDL from stffile
1627  */
1628 LPITEMIDLIST _ILCreateFromFindDataA(WIN32_FIND_DATAA * stffile )
1629 {
1630     char        buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1631     char *      pbuff = buff;
1632     ULONG       len, len1;
1633     LPITEMIDLIST pidl;
1634     PIDLTYPE type;
1635
1636     if (!stffile)
1637         return NULL;
1638
1639     TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1640
1641     /* prepare buffer with both names */
1642     len = strlen (stffile->cFileName) + 1;
1643     memcpy (pbuff, stffile->cFileName, len);
1644     pbuff += len;
1645
1646     len1 = strlen (stffile->cAlternateFileName)+1;
1647     memcpy (pbuff, stffile->cAlternateFileName, len1);
1648
1649     type = (stffile->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER :
1650      PT_VALUE;
1651     /* FIXME: magic #s! */
1652     if ((pidl = _ILCreateWithTypeAndSize(type, 2 + 12 + len + len1)))
1653     {
1654         LPPIDLDATA pData;
1655         LPSTR pszDest;
1656
1657         /* set attributes */
1658         if ((pData = _ILGetDataPointer(pidl)))
1659         {
1660             pData->type = type;
1661             FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1662             pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1663             pData->u.folder.uFileAttribs = stffile->dwFileAttributes;
1664         }
1665         if ((pszDest = _ILGetTextPointer(pidl)))
1666         {
1667             memcpy(pszDest, buff, len + len1);
1668             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1669         }
1670     }
1671     return pidl;
1672 }
1673
1674 LPITEMIDLIST _ILCreateFromPathA(LPCSTR szPath)
1675 {
1676         HANDLE hFile;
1677         WIN32_FIND_DATAA stffile;
1678         LPITEMIDLIST pidl = NULL;
1679
1680         hFile = FindFirstFileA(szPath, &stffile);
1681         if (hFile != INVALID_HANDLE_VALUE)
1682         {
1683           pidl = _ILCreateFromFindDataA(&stffile);
1684           FindClose(hFile);
1685         }
1686         return pidl;
1687 }
1688
1689 LPITEMIDLIST _ILCreateDrive( LPCSTR lpszNew)
1690 {
1691     char sTemp[4];
1692     LPITEMIDLIST pidlOut;
1693
1694     sTemp[0]=lpszNew[0];
1695     sTemp[1]=':';
1696     sTemp[2]='\\';
1697     sTemp[3]=0x00;
1698     TRACE("(%s)\n",sTemp);
1699
1700     /* FIXME: magic #s! */
1701     if ((pidlOut = _ILCreateWithTypeAndSize(PT_DRIVE, 25)))
1702     {
1703         LPSTR pszDest;
1704
1705         if ((pszDest = _ILGetTextPointer(pidlOut)))
1706         {
1707             memcpy(pszDest, sTemp, sizeof(sTemp));
1708             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1709         }
1710     }
1711     return pidlOut;
1712 }
1713
1714 LPITEMIDLIST _ILCreateCPanel(LPCSTR name, LPCSTR displayName, LPCSTR comment, int iconIdx)
1715 {
1716     PIDLCPanelStruct *p;
1717     LPITEMIDLIST pidl;
1718     PIDLDATA tmp;
1719     int size0 = (char*)&tmp.u.cpanel.szName-(char*)&tmp.u.cpanel;
1720     int size = size0;
1721     int l;
1722
1723     tmp.type = 0;
1724     tmp.u.cpanel.dummy = 0;
1725     tmp.u.cpanel.iconIdx = iconIdx;
1726
1727     l = strlen(name);
1728     size += l+1;
1729
1730     tmp.u.cpanel.offsDispName = l+1;
1731     l = strlen(displayName);
1732     size += l+1;
1733
1734     tmp.u.cpanel.offsComment = tmp.u.cpanel.offsDispName+1+l;
1735     l = strlen(comment);
1736     size += l+1;
1737
1738     pidl = SHAlloc(size+4);
1739     if (!pidl)
1740         return NULL;
1741
1742     pidl->mkid.cb = size+2;
1743     memcpy(pidl->mkid.abID, &tmp, 2+size0);
1744
1745     p = &((PIDLDATA*)pidl->mkid.abID)->u.cpanel;
1746     strcpy(p->szName, name);
1747     strcpy(p->szName+tmp.u.cpanel.offsDispName, displayName);
1748     strcpy(p->szName+tmp.u.cpanel.offsComment, comment);
1749
1750     *(WORD*)((char*)pidl+(size+2)) = 0;
1751
1752     pcheck(pidl);
1753
1754     return pidl;
1755 }
1756
1757 /**************************************************************************
1758  *  _ILGetDrive()
1759  *
1760  *  Gets the text for the drive eg. 'c:\'
1761  *
1762  * RETURNS
1763  *  strlen (lpszText)
1764  */
1765 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1766 {       TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1767
1768         if(_ILIsMyComputer(pidl))
1769           pidl = ILGetNext(pidl);
1770
1771         if (pidl && _ILIsDrive(pidl))
1772           return _ILSimpleGetText(pidl, pOut, uSize);
1773
1774         return 0;
1775 }
1776
1777 /**************************************************************************
1778  *
1779  *      ### 2. section testing pidls ###
1780  *
1781  **************************************************************************
1782  *  _ILIsDesktop()
1783  *  _ILIsMyComputer()
1784  *  _ILIsSpecialFolder()
1785  *  _ILIsDrive()
1786  *  _ILIsFolder()
1787  *  _ILIsValue()
1788  *  _ILIsPidlSimple()
1789  */
1790 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1791 {       TRACE("(%p)\n",pidl);
1792         return pidl && pidl->mkid.cb  ? 0 : 1;
1793 }
1794
1795 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1796 {
1797         REFIID iid = _ILGetGUIDPointer(pidl);
1798
1799         TRACE("(%p)\n",pidl);
1800
1801         if (iid)
1802           return IsEqualIID(iid, &CLSID_MyComputer);
1803         return FALSE;
1804 }
1805
1806 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1807 {
1808         LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1809         TRACE("(%p)\n",pidl);
1810         return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type)) ||
1811                           (pidl && pidl->mkid.cb == 0x00)
1812                         ));
1813 }
1814
1815 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1816 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1817         TRACE("(%p)\n",pidl);
1818         return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1819                                     PT_DRIVE1 == lpPData->type ||
1820                                     PT_DRIVE2 == lpPData->type ||
1821                                     PT_DRIVE3 == lpPData->type));
1822 }
1823
1824 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1825 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1826         TRACE("(%p)\n",pidl);
1827         return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1828 }
1829
1830 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1831 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1832         TRACE("(%p)\n",pidl);
1833         return (pidl && lpPData && PT_VALUE == lpPData->type);
1834 }
1835
1836 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1837 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1838         TRACE("(%p)\n",pidl);
1839         return (pidl && lpPData && (lpPData->type == 0));
1840 }
1841
1842 /**************************************************************************
1843  *      _ILIsPidlSimple
1844  */
1845 BOOL _ILIsPidlSimple ( LPCITEMIDLIST pidl)
1846 {
1847         BOOL ret = TRUE;
1848
1849         if(! _ILIsDesktop(pidl))        /* pidl=NULL or mkid.cb=0 */
1850         {
1851           WORD len = pidl->mkid.cb;
1852           LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((LPBYTE)pidl) + len );
1853           if (pidlnext->mkid.cb)
1854             ret = FALSE;
1855         }
1856
1857         TRACE("%s\n", ret ? "Yes" : "No");
1858         return ret;
1859 }
1860
1861 /**************************************************************************
1862  *
1863  *      ### 3. section getting values from pidls ###
1864  */
1865
1866  /**************************************************************************
1867  *  _ILSimpleGetText
1868  *
1869  * gets the text for the first item in the pidl (eg. simple pidl)
1870  *
1871  * returns the length of the string
1872  */
1873 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1874 {
1875         DWORD           dwReturn=0;
1876         LPSTR           szSrc;
1877         GUID const *    riid;
1878         char szTemp[MAX_PATH];
1879
1880         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1881
1882         if (!pidl) return 0;
1883
1884         if (szOut)
1885           *szOut = 0;
1886
1887         if (_ILIsDesktop(pidl))
1888         {
1889          /* desktop */
1890           if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1891           {
1892             if (szOut)
1893               lstrcpynA(szOut, szTemp, uOutSize);
1894
1895             dwReturn = strlen (szTemp);
1896           }
1897         }
1898         else if (( szSrc = _ILGetTextPointer(pidl) ))
1899         {
1900           /* filesystem */
1901           if (szOut)
1902             lstrcpynA(szOut, szSrc, uOutSize);
1903
1904           dwReturn = strlen(szSrc);
1905         }
1906         else if (( riid = _ILGetGUIDPointer(pidl) ))
1907         {
1908           /* special folder */
1909           if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1910           {
1911             if (szOut)
1912               lstrcpynA(szOut, szTemp, uOutSize);
1913
1914             dwReturn = strlen (szTemp);
1915           }
1916         }
1917         else
1918         {
1919           ERR("-- no text\n");
1920         }
1921
1922         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_a(szOut),dwReturn);
1923         return dwReturn;
1924 }
1925
1926  /**************************************************************************
1927  *  _ILSimpleGetTextW
1928  *
1929  * gets the text for the first item in the pidl (eg. simple pidl)
1930  *
1931  * returns the length of the string
1932  */
1933 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1934 {
1935         DWORD   dwReturn;
1936         char    szTemp[MAX_PATH];
1937
1938         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1939
1940         dwReturn = _ILSimpleGetText(pidl, szTemp, uOutSize);
1941
1942         if (!MultiByteToWideChar(CP_ACP, 0, szTemp, -1, szOut, MAX_PATH))
1943                 *szOut = 0;
1944
1945         TRACE("-- (%p=%s 0x%08lx)\n",szOut,debugstr_w(szOut),dwReturn);
1946         return dwReturn;
1947 }
1948
1949 /**************************************************************************
1950  *
1951  *      ### 4. getting pointers to parts of pidls ###
1952  *
1953  **************************************************************************
1954  *  _ILGetDataPointer()
1955  */
1956 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1957 {
1958         if(pidl && pidl->mkid.cb != 0x00)
1959           return (LPPIDLDATA) &(pidl->mkid.abID);
1960         return NULL;
1961 }
1962
1963 /**************************************************************************
1964  *  _ILGetTextPointer()
1965  * gets a pointer to the long filename string stored in the pidl
1966  */
1967 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1968 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1969
1970         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1971
1972         if (pdata)
1973         {
1974           switch (pdata->type)
1975           {
1976             case PT_GUID:
1977             case PT_SHELLEXT:
1978               return NULL;
1979
1980             case PT_DRIVE:
1981             case PT_DRIVE1:
1982             case PT_DRIVE2:
1983             case PT_DRIVE3:
1984               return (LPSTR)&(pdata->u.drive.szDriveName);
1985
1986             case PT_FOLDER:
1987             case PT_FOLDER1:
1988             case PT_VALUE:
1989             case PT_IESPECIAL1:
1990             case PT_RAS_FOLDER:
1991             case PT_IESPECIAL2:
1992               return (LPSTR)&(pdata->u.file.szNames);
1993
1994             case PT_WORKGRP:
1995             case PT_COMP:
1996             case PT_NETWORK:
1997             case PT_NETPROVIDER:
1998             case PT_SHARE:
1999               return (LPSTR)&(pdata->u.network.szNames);
2000           }
2001         }
2002         return NULL;
2003 }
2004
2005 /**************************************************************************
2006  *  _ILGetSTextPointer()
2007  * gets a pointer to the short filename string stored in the pidl
2008  */
2009 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
2010 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
2011
2012         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2013
2014         if (pdata)
2015         {
2016           switch (pdata->type)
2017           {
2018             case PT_FOLDER:
2019             case PT_VALUE:
2020             case PT_IESPECIAL1:
2021             case PT_RAS_FOLDER:
2022             case PT_IESPECIAL2:
2023               return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
2024
2025             case PT_WORKGRP:
2026               return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
2027           }
2028         }
2029         return NULL;
2030 }
2031
2032 /**************************************************************************
2033  * _ILGetGUIDPointer()
2034  *
2035  * returns reference to guid stored in some pidls
2036  */
2037 REFIID _ILGetGUIDPointer(LPCITEMIDLIST pidl)
2038 {
2039         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
2040
2041         TRACE("%p\n", pidl);
2042
2043         if (pdata)
2044         {
2045           TRACE("pdata->type 0x%04x\n", pdata->type);
2046           switch (pdata->type)
2047           {
2048             case PT_SHELLEXT:
2049             case PT_GUID:
2050               return (REFIID) &(pdata->u.guid.guid);
2051
2052             default:
2053                 TRACE("Unknown pidl type 0x%04x\n", pdata->type);
2054                 break;
2055           }
2056         }
2057         return NULL;
2058 }
2059
2060 /**************************************************************************
2061  *  _ILGetCPanelPointer()
2062  * gets a pointer to the control panel struct stored in the pidl
2063  */
2064 PIDLCPanelStruct* _ILGetCPanelPointer(LPCITEMIDLIST pidl)
2065 {
2066     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2067
2068     if (pdata && pdata->type==0)
2069         return (PIDLCPanelStruct*)&(pdata->u.cpanel);
2070
2071     return NULL;
2072 }
2073
2074 /*************************************************************************
2075  * _ILGetFileDateTime
2076  *
2077  * Given the ItemIdList, get the FileTime
2078  *
2079  * PARAMS
2080  *      pidl        [I] The ItemIDList
2081  *      pFt         [I] the resulted FILETIME of the file
2082  *
2083  * RETURNS
2084  *     True if Successful
2085  *
2086  * NOTES
2087  *
2088  */
2089 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2090 {
2091     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2092
2093     if(! pdata) return FALSE;
2094
2095     switch (pdata->type)
2096     {
2097         case PT_FOLDER:
2098             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, pFt);
2099             break;
2100         case PT_VALUE:
2101             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2102             break;
2103         default:
2104             return FALSE;
2105     }
2106     return TRUE;
2107 }
2108
2109 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2110 {
2111         FILETIME ft,lft;
2112         SYSTEMTIME time;
2113         BOOL ret;
2114
2115         if (_ILGetFileDateTime( pidl, &ft )) {
2116             FileTimeToLocalFileTime(&ft, &lft);
2117             FileTimeToSystemTime (&lft, &time);
2118             ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2119         } else {
2120             pOut[0] = '\0';
2121             ret = FALSE;
2122         }
2123         return ret;
2124
2125 }
2126
2127 /*************************************************************************
2128  * _ILGetFileSize
2129  *
2130  * Given the ItemIdList, get the FileSize
2131  *
2132  * PARAMS
2133  *      pidl    [I] The ItemIDList
2134  *      pOut    [I] The buffer to save the result
2135  *      uOutsize [I] The size of the buffer
2136  *
2137  * RETURNS
2138  *     The FileSize
2139  *
2140  * NOTES
2141  *      pOut can be null when no string is needed
2142  *
2143  */
2144 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2145 {
2146         LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2147         DWORD dwSize;
2148
2149         if(! pdata) return 0;
2150
2151         switch (pdata->type)
2152         {
2153           case PT_VALUE:
2154             dwSize = pdata->u.file.dwFileSize;
2155             if (pOut) StrFormatByteSizeA(dwSize, pOut, uOutSize);
2156             return dwSize;
2157         }
2158         if (pOut) *pOut = 0x00;
2159         return 0;
2160 }
2161
2162 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2163 {
2164         char szTemp[MAX_PATH];
2165         const char * pPoint;
2166         LPCITEMIDLIST  pidlTemp=pidl;
2167
2168         TRACE("pidl=%p\n",pidl);
2169
2170         if (!pidl) return FALSE;
2171
2172         pidlTemp = ILFindLastID(pidl);
2173
2174         if (!_ILIsValue(pidlTemp)) return FALSE;
2175         if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH)) return FALSE;
2176
2177         pPoint = PathFindExtensionA(szTemp);
2178
2179         if (! *pPoint) return FALSE;
2180
2181         pPoint++;
2182         lstrcpynA(pOut, pPoint, uOutSize);
2183         TRACE("%s\n",pOut);
2184
2185         return TRUE;
2186 }
2187
2188 /*************************************************************************
2189  * _ILGetFileType
2190  *
2191  * Given the ItemIdList, get the file type description
2192  *
2193  * PARAMS
2194  *      pidl        [I] The ItemIDList (simple)
2195  *      pOut        [I] The buffer to save the result
2196  *      uOutsize    [I] The size of the buffer
2197  *
2198  * RETURNS
2199  *      nothing
2200  *
2201  * NOTES
2202  *      This function copies as much as possible into the buffer.
2203  */
2204 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2205 {
2206         if(_ILIsValue(pidl))
2207         {
2208           char sTemp[64];
2209           if(uOutSize > 0)
2210           {
2211             pOut[0] = 0;
2212           }
2213           if (_ILGetExtension (pidl, sTemp, 64))
2214           {
2215             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2216                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2217             {
2218               lstrcpynA (pOut, sTemp, uOutSize - 6);
2219               strcat (pOut, "-file");
2220             }
2221           }
2222         }
2223         else
2224         {
2225           lstrcpynA(pOut, "Folder", uOutSize);
2226         }
2227 }
2228
2229 /*************************************************************************
2230  * _ILGetFileAttributes
2231  *
2232  * Given the ItemIdList, get the Attrib string format
2233  *
2234  * PARAMS
2235  *      pidl        [I] The ItemIDList
2236  *      pOut        [I] The buffer to save the result
2237  *      uOutsize    [I] The size of the Buffer
2238  *
2239  * RETURNS
2240  *     Attributes
2241  *
2242  * FIXME
2243  *  return value 0 in case of error is a valid return value
2244  *
2245  */
2246 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2247 {
2248         LPPIDLDATA pData = _ILGetDataPointer(pidl);
2249         WORD wAttrib = 0;
2250         int i;
2251
2252         if(! pData) return 0;
2253
2254         switch(pData->type)
2255         {
2256           case PT_FOLDER:
2257             wAttrib = pData->u.folder.uFileAttribs;
2258             break;
2259           case PT_VALUE:
2260             wAttrib = pData->u.file.uFileAttribs;
2261             break;
2262         }
2263
2264         if(uOutSize >= 6)
2265         {
2266           i=0;
2267           if(wAttrib & FILE_ATTRIBUTE_READONLY)
2268           {
2269             pOut[i++] = 'R';
2270           }
2271           if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2272           {
2273             pOut[i++] = 'H';
2274           }
2275           if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2276           {
2277             pOut[i++] = 'S';
2278           }
2279           if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2280           {
2281             pOut[i++] = 'A';
2282           }
2283           if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2284           {
2285             pOut[i++] = 'C';
2286           }
2287           pOut[i] = 0x00;
2288         }
2289         return wAttrib;
2290 }
2291
2292 /*************************************************************************
2293 * ILFreeaPidl
2294 *
2295 * free a aPidl struct
2296 */
2297 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2298 {
2299         UINT   i;
2300
2301         if (apidl)
2302         {
2303           for (i = 0; i < cidl; i++) SHFree(apidl[i]);
2304           SHFree(apidl);
2305         }
2306 }
2307
2308 /*************************************************************************
2309 * ILCopyaPidl
2310 *
2311 * copies an aPidl struct
2312 */
2313 LPITEMIDLIST* _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl)
2314 {
2315         UINT i;
2316         LPITEMIDLIST * apidldest = (LPITEMIDLIST*)SHAlloc(cidl * sizeof(LPITEMIDLIST));
2317         if(!apidlsrc) return NULL;
2318
2319         for (i = 0; i < cidl; i++)
2320           apidldest[i] = ILClone(apidlsrc[i]);
2321
2322         return apidldest;
2323 }
2324
2325 /*************************************************************************
2326 * _ILCopyCidaToaPidl
2327 *
2328 * creates aPidl from CIDA
2329 */
2330 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
2331 {
2332         UINT i;
2333         LPITEMIDLIST * dst = (LPITEMIDLIST*)SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2334
2335         if(!dst) return NULL;
2336
2337         if (pidl)
2338           *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
2339
2340         for (i = 0; i < cida->cidl; i++)
2341           dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
2342
2343         return dst;
2344 }