dlls/shell32/pidl.c

   1 /*
   2  *      pidl Handling
   3  *
   4  *      Copyright 1998  Juergen Schmied
   5  *
   6  * NOTES
   7  *  a pidl == NULL means desktop and is legal
   8  *
   9  */
  10
  11 #include <ctype.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include "winbase.h"
  15 #include "debugtools.h"
  16 #include "shlguid.h"
  17 #include "winerror.h"
  18 #include "winnls.h"
  19 #include "wine/undocshell.h"
  20 #include "shell32_main.h"
  21 #include "shellapi.h"
  22
  23 #include "pidl.h"
  24
  25 DEFAULT_DEBUG_CHANNEL(pidl);
  26 DECLARE_DEBUG_CHANNEL(shell);
  27
  28 void pdump (LPCITEMIDLIST pidl)
  29 {
  30         BOOL bIsShellDebug;
  31
  32         LPITEMIDLIST pidltemp = pidl;
  33         if (!TRACE_ON(pidl))
  34           return;
  35
  36         /* silence the sub-functions */
  37         bIsShellDebug = TRACE_ON(shell);
  38         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_shell, FALSE);
  39         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_pidl, FALSE);
  40
  41         if (! pidltemp)
  42         {
  43           MESSAGE ("-------- pidl=NULL (Desktop)\n");
  44         }
  45         else
  46         {
  47           MESSAGE ("-------- pidl=%p\n", pidl);
  48           if (pidltemp->mkid.cb)
  49           {
  50             do
  51             {
  52               DWORD dwAttrib = 0;
  53               LPPIDLDATA pData   = _ILGetDataPointer(pidltemp);
  54               DWORD type         = pData->type;
  55               LPSTR szLongName   = _ILGetTextPointer(pidltemp);
  56               LPSTR szShortName  = _ILGetSTextPointer(pidltemp);
  57               char szName[MAX_PATH];
  58
  59               _ILSimpleGetText(pidltemp, szName, MAX_PATH);
  60               if( PT_FOLDER == type)
  61                 dwAttrib = pData->u.folder.uFileAttribs;
  62               else if( PT_VALUE == type)
  63                 dwAttrib = pData->u.file.uFileAttribs;
  64
  65               MESSAGE ("-- pidl=%p size=%u type=%lx attr=0x%08lx name=%s (%s,%s)\n",
  66                        pidltemp, pidltemp->mkid.cb,type,dwAttrib,szName,debugstr_a(szLongName), debugstr_a(szShortName));
  67
  68               pidltemp = ILGetNext(pidltemp);
  69
  70             } while (pidltemp->mkid.cb);
  71           }
  72           else
  73           {
  74             MESSAGE ("empty pidl (Desktop)\n");
  75           }
  76           pcheck(pidl);
  77         }
  78
  79         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_shell, bIsShellDebug);
  80         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_pidl, TRUE);
  81
  82 }
  83 #define BYTES_PRINTED 32
  84 BOOL pcheck (LPCITEMIDLIST pidl)
  85 {       DWORD type, ret=TRUE;
  86         BOOL bIsPidlDebug;
  87
  88         LPITEMIDLIST pidltemp = pidl;
  89
  90         bIsPidlDebug = TRACE_ON(shell);
  91         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_pidl, FALSE);
  92
  93         if (pidltemp && pidltemp->mkid.cb)
  94         { do
  95           { type   = _ILGetDataPointer(pidltemp)->type;
  96             switch (type)
  97             { case PT_DESKTOP:
  98               case PT_MYCOMP:
  99               case PT_SPECIAL:
 100               case PT_DRIVE:
 101               case PT_DRIVE1:
 102               case PT_DRIVE2:
 103               case PT_DRIVE3:
 104               case PT_FOLDER:
 105               case PT_VALUE:
 106               case PT_FOLDER1:
 107               case PT_WORKGRP:
 108               case PT_COMP:
 109               case PT_NETWORK:
 110               case PT_SHARE:
 111               case PT_IESPECIAL:
 112                 break;
 113               default:
 114               {
 115                 char szTemp[BYTES_PRINTED*4 + 1];
 116                 int i;
 117                 unsigned char c;
 118
 119                 memset(szTemp, ' ', BYTES_PRINTED*4 + 1);
 120                 for ( i = 0; (i<pidltemp->mkid.cb) && (i<BYTES_PRINTED); i++)
 121                 {
 122                   c = ((unsigned char *)pidltemp)[i];
 123
 124                   szTemp[i*3+0] = ((c>>4)>9)? (c>>4)+55 : (c>>4)+48;
 125                   szTemp[i*3+1] = ((0x0F&c)>9)? (0x0F&c)+55 : (0x0F&c)+48;
 126                   szTemp[i*3+2] = ' ';
 127                   szTemp[i+BYTES_PRINTED*3]  =  (c>=0x20 && c <=0x80) ? c : '.';
 128                 }
 129                 szTemp[BYTES_PRINTED*4] = 0x00;
 130                 ERR("unknown IDLIST type size=%u type=%lx\n%s\n",pidltemp->mkid.cb,type, szTemp);
 131                 ret = FALSE;
 132               }
 133             }
 134             pidltemp = ILGetNext(pidltemp);
 135           } while (pidltemp->mkid.cb);
 136         }
 137         __SET_DEBUGGING(__DBCL_TRACE, __wine_dbch_pidl, bIsPidlDebug);
 138         return ret;
 139 }
 140
 141 /*************************************************************************
 142  * ILGetDisplayName                     [SHELL32.15]
 143  */
 144 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl,LPSTR path)
 145 {
 146         TRACE_(shell)("pidl=%p %p semi-stub\n",pidl,path);
 147         return SHGetPathFromIDListA(pidl, path);
 148 }
 149 /*************************************************************************
 150  * ILFindLastID [SHELL32.16]
 151  *
 152  * NOTES
 153  *   observed: pidl=Desktop return=pidl
 154  */
 155 LPITEMIDLIST WINAPI ILFindLastID(LPITEMIDLIST pidl)
 156 {       LPITEMIDLIST   pidlLast = pidl;
 157
 158         TRACE("(pidl=%p)\n",pidl);
 159
 160         while (pidl->mkid.cb)
 161         {
 162           pidlLast = pidl;
 163           pidl = ILGetNext(pidl);
 164         }
 165         return pidlLast;
 166 }
 167 /*************************************************************************
 168  * ILRemoveLastID [SHELL32.17]
 169  *
 170  * NOTES
 171  *   when pidl=Desktop return=FALSE
 172  */
 173 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
 174 {
 175         TRACE_(shell)("pidl=%p\n",pidl);
 176
 177         if (!pidl || !pidl->mkid.cb)
 178           return 0;
 179         ILFindLastID(pidl)->mkid.cb = 0;
 180         return 1;
 181 }
 182
 183 /*************************************************************************
 184  * ILClone [SHELL32.18]
 185  *
 186  * NOTES
 187  *    dupicate an idlist
 188  */
 189 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 190 { DWORD    len;
 191   LPITEMIDLIST  newpidl;
 192
 193   if (!pidl)
 194     return NULL;
 195
 196   len = ILGetSize(pidl);
 197   newpidl = (LPITEMIDLIST)SHAlloc(len);
 198   if (newpidl)
 199     memcpy(newpidl,pidl,len);
 200
 201   TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 202   pdump(pidl);
 203
 204   return newpidl;
 205 }
 206 /*************************************************************************
 207  * ILCloneFirst [SHELL32.19]
 208  *
 209  * NOTES
 210  *  duplicates the first idlist of a complex pidl
 211  */
 212 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 213 {       DWORD len;
 214         LPITEMIDLIST pidlNew = NULL;
 215
 216         TRACE("pidl=%p \n",pidl);
 217         pdump(pidl);
 218
 219         if (pidl)
 220         {
 221           len = pidl->mkid.cb;
 222           pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 223           if (pidlNew)
 224           {
 225             memcpy(pidlNew,pidl,len+2);         /* 2 -> mind a desktop pidl */
 226
 227             if (len)
 228               ILGetNext(pidlNew)->mkid.cb = 0x00;
 229           }
 230         }
 231         TRACE("-- newpidl=%p\n",pidlNew);
 232
 233         return pidlNew;
 234 }
 235 /*************************************************************************
 236  * ILLoadFromStream
 237  *
 238  * NOTES
 239  *   the first two bytes are the len, the pidl is following then
 240  */
 241 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 242 {       WORD            wLen = 0;
 243         DWORD           dwBytesRead;
 244         HRESULT         ret = E_FAIL;
 245
 246
 247         TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 248
 249         if (*ppPidl)
 250         { SHFree(*ppPidl);
 251           *ppPidl = NULL;
 252         }
 253
 254         IStream_AddRef (pStream);
 255
 256         if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 257         { *ppPidl = SHAlloc (wLen);
 258           if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 259           { ret = S_OK;
 260           }
 261           else
 262           { SHFree(*ppPidl);
 263             *ppPidl = NULL;
 264           }
 265         }
 266
 267         /* we are not jet fully compatible */
 268         if (!pcheck(*ppPidl))
 269         { SHFree(*ppPidl);
 270           *ppPidl = NULL;
 271         }
 272
 273
 274         IStream_Release (pStream);
 275
 276         return ret;
 277 }
 278 /*************************************************************************
 279  * SHILCreateFromPath   [SHELL32.28]
 280  *
 281  * NOTES
 282  *   wraper for IShellFolder::ParseDisplayName()
 283  */
 284 HRESULT WINAPI SHILCreateFromPathA (LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 285 {       LPSHELLFOLDER sf;
 286         WCHAR lpszDisplayName[MAX_PATH];
 287         DWORD pchEaten;
 288         HRESULT ret = E_FAIL;
 289
 290         TRACE_(shell)("%s %p 0x%08lx\n",path,ppidl,attributes?*attributes:0);
 291
 292         if (!MultiByteToWideChar( CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH ))
 293             lpszDisplayName[MAX_PATH-1] = 0;
 294
 295         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 296         {
 297           ret = IShellFolder_ParseDisplayName(sf,0, NULL,lpszDisplayName,&pchEaten,ppidl,attributes);
 298           IShellFolder_Release(sf);
 299         }
 300         return ret;
 301 }
 302 HRESULT WINAPI SHILCreateFromPathW (LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 303 {       LPSHELLFOLDER sf;
 304         DWORD pchEaten;
 305         HRESULT ret = E_FAIL;
 306
 307         TRACE_(shell)("%s %p 0x%08lx\n",debugstr_w(path),ppidl,attributes?*attributes:0);
 308
 309         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 310         {
 311           ret = IShellFolder_ParseDisplayName(sf,0, NULL, (LPWSTR) path, &pchEaten, ppidl, attributes);
 312           IShellFolder_Release(sf);
 313         }
 314         return ret;
 315 }
 316 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 317 {
 318         if ( SHELL_OsIsUnicode())
 319           return SHILCreateFromPathW (path, ppidl, attributes);
 320         return SHILCreateFromPathA (path, ppidl, attributes);
 321 }
 322
 323 /*************************************************************************
 324  * SHCloneSpecialIDList [SHELL32.89]
 325  *
 326  * PARAMETERS
 327  *  hwndOwner   [in]
 328  *  nFolder     [in]    CSIDL_xxxxx ??
 329  *
 330  * RETURNS
 331  *  pidl ??
 332  * NOTES
 333  *     exported by ordinal
 334  */
 335 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner,DWORD nFolder,DWORD x3)
 336 {       LPITEMIDLIST ppidl;
 337         WARN_(shell)("(hwnd=0x%x,csidl=0x%lx,0x%lx):semi-stub.\n",
 338                                          hwndOwner,nFolder,x3);
 339
 340         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 341
 342         return ppidl;
 343 }
 344
 345 /*************************************************************************
 346  * ILGlobalClone [SHELL32.97]
 347  *
 348  */
 349 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 350 {       DWORD    len;
 351         LPITEMIDLIST  newpidl;
 352
 353         if (!pidl)
 354           return NULL;
 355
 356         len = ILGetSize(pidl);
 357         newpidl = (LPITEMIDLIST)pCOMCTL32_Alloc(len);
 358         if (newpidl)
 359           memcpy(newpidl,pidl,len);
 360
 361         TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 362         pdump(pidl);
 363
 364         return newpidl;
 365 }
 366
 367 /*************************************************************************
 368  * ILIsEqual [SHELL32.21]
 369  *
 370  */
 371 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 372 {
 373         char    szData1[MAX_PATH];
 374         char    szData2[MAX_PATH];
 375
 376         LPITEMIDLIST pidltemp1 = pidl1;
 377         LPITEMIDLIST pidltemp2 = pidl2;
 378
 379         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 380
 381         /* explorer reads from registry directly (StreamMRU),
 382            so we can only check here */
 383         if ((!pcheck (pidl1)) || (!pcheck (pidl2))) return FALSE;
 384
 385         pdump (pidl1);
 386         pdump (pidl2);
 387
 388         if ( (!pidl1) || (!pidl2) ) return FALSE;
 389
 390         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 391         {
 392             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 393             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 394
 395             if (strcasecmp ( szData1, szData2 )!=0 )
 396               return FALSE;
 397
 398             pidltemp1 = ILGetNext(pidltemp1);
 399             pidltemp2 = ILGetNext(pidltemp2);
 400         }
 401
 402         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 403         {
 404           return TRUE;
 405         }
 406
 407         return FALSE;
 408 }
 409 /*************************************************************************
 410  * ILIsParent [SHELL32.23]
 411  *
 412  * parent=a/b   child=a/b/c -> true, c is in folder a/b
 413  *              child=a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 414  *              child=a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 415  */
 416 BOOL WINAPI ILIsParent( LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 417 {
 418         char    szData1[MAX_PATH];
 419         char    szData2[MAX_PATH];
 420
 421         LPITEMIDLIST pParent = pidlParent;
 422         LPITEMIDLIST pChild = pidlChild;
 423
 424         TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 425
 426         while (pParent->mkid.cb && pChild->mkid.cb)
 427         {
 428           _ILSimpleGetText(pParent, szData1, MAX_PATH);
 429           _ILSimpleGetText(pChild, szData2, MAX_PATH);
 430
 431           if (strcasecmp ( szData1, szData2 )!=0 )
 432             return FALSE;
 433
 434           pParent = ILGetNext(pParent);
 435           pChild = ILGetNext(pChild);
 436         }
 437
 438         if ( pParent->mkid.cb || ! pChild->mkid.cb)     /* child shorter or has equal length to parent */
 439           return FALSE;
 440
 441         if ( ILGetNext(pChild)->mkid.cb && bImmediate)  /* not immediate descent */
 442           return FALSE;
 443
 444         return TRUE;
 445 }
 446
 447 /*************************************************************************
 448  * ILFindChild [SHELL32.24]
 449  *
 450  * NOTES
 451  *  Compares elements from pidl1 and pidl2.
 452  *
 453  *  pidl1 is desktop            pidl2
 454  *  pidl1 shorter pidl2         pointer to first different element of pidl2
 455  *                              if there was at least one equal element
 456  *  pidl2 shorter pidl1         0
 457  *  pidl2 equal pidl1           pointer to last 0x00-element of pidl2
 458  */
 459 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 460 {
 461         char    szData1[MAX_PATH];
 462         char    szData2[MAX_PATH];
 463
 464         LPITEMIDLIST pidltemp1 = pidl1;
 465         LPITEMIDLIST pidltemp2 = pidl2;
 466         LPITEMIDLIST ret=NULL;
 467
 468         TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 469
 470         /* explorer reads from registry directly (StreamMRU),
 471            so we can only check here */
 472         if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 473           return FALSE;
 474
 475         pdump (pidl1);
 476         pdump (pidl2);
 477
 478         if ( _ILIsDesktop(pidl1) )
 479         {
 480           ret = pidl2;
 481         }
 482         else
 483         {
 484           while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 485           {
 486             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 487             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 488
 489             if (strcasecmp(szData1,szData2))
 490               break;
 491
 492             pidltemp1 = ILGetNext(pidltemp1);
 493             pidltemp2 = ILGetNext(pidltemp2);
 494             ret = pidltemp2;
 495           }
 496
 497           if (pidltemp1->mkid.cb)
 498           {
 499             ret = NULL; /* elements of pidl1 left*/
 500           }
 501         }
 502         TRACE_(shell)("--- %p\n", ret);
 503         return ret; /* pidl 1 is shorter */
 504 }
 505
 506 /*************************************************************************
 507  * ILCombine [SHELL32.25]
 508  *
 509  * NOTES
 510  *  Concatenates two complex idlists.
 511  *  The pidl is the first one, pidlsub the next one
 512  *  Does not destroy the passed in idlists!
 513  */
 514 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 515 {
 516         DWORD    len1,len2;
 517         LPITEMIDLIST  pidlNew;
 518
 519         TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 520
 521         if(!pidl1 && !pidl2) return NULL;
 522
 523         pdump (pidl1);
 524         pdump (pidl2);
 525
 526         if(!pidl1)
 527         {
 528           pidlNew = ILClone(pidl2);
 529           return pidlNew;
 530         }
 531
 532         if(!pidl2)
 533         {
 534           pidlNew = ILClone(pidl1);
 535           return pidlNew;
 536         }
 537
 538         len1  = ILGetSize(pidl1)-2;
 539         len2  = ILGetSize(pidl2);
 540         pidlNew  = SHAlloc(len1+len2);
 541
 542         if (pidlNew)
 543         {
 544           memcpy(pidlNew,pidl1,len1);
 545           memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 546         }
 547
 548         /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 549         return pidlNew;
 550 }
 551 /*************************************************************************
 552  *  SHGetRealIDL [SHELL32.98]
 553  *
 554  * NOTES
 555  */
 556 LPITEMIDLIST WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPITEMIDLIST pidl, DWORD z)
 557 {
 558         FIXME("sf=%p pidl=%p 0x%04lx\n",lpsf,pidl,z);
 559
 560         pdump (pidl);
 561         return 0;
 562 }
 563
 564 /*************************************************************************
 565  *  SHLogILFromFSIL [SHELL32.95]
 566  *
 567  * NOTES
 568  *  pild = CSIDL_DESKTOP        ret = 0
 569  *  pild = CSIDL_DRIVES         ret = 0
 570  */
 571 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 572 {
 573         FIXME("(pidl=%p)\n",pidl);
 574
 575         pdump(pidl);
 576
 577         return 0;
 578 }
 579
 580 /*************************************************************************
 581  * ILGetSize [SHELL32.152]
 582  *  gets the byte size of an idlist including zero terminator (pidl)
 583  *
 584  * PARAMETERS
 585  *  pidl ITEMIDLIST
 586  *
 587  * RETURNS
 588  *  size of pidl
 589  *
 590  * NOTES
 591  *  exported by ordinal
 592  */
 593 DWORD WINAPI ILGetSize(LPITEMIDLIST pidl)
 594 {
 595         LPSHITEMID si = &(pidl->mkid);
 596         DWORD  len=0;
 597
 598         if (pidl)
 599         { while (si->cb)
 600           { len += si->cb;
 601             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 602           }
 603           len += 2;
 604         }
 605         TRACE("pidl=%p size=%lu\n",pidl, len);
 606         return len;
 607 }
 608
 609 /*************************************************************************
 610  * ILGetNext [SHELL32.153]
 611  *  gets the next simple pidl of a complex pidl
 612  *
 613  * observed return values:
 614  *  null -> null
 615  *  desktop -> null
 616  *  simple pidl -> pointer to 0x0000 element
 617  *
 618  */
 619 LPITEMIDLIST WINAPI ILGetNext(LPITEMIDLIST pidl)
 620 {
 621         WORD len;
 622
 623         TRACE("(pidl=%p)\n",pidl);
 624
 625         if(pidl)
 626         {
 627           len =  pidl->mkid.cb;
 628           if (len)
 629           {
 630             pidl = (LPITEMIDLIST) (((LPBYTE)pidl)+len);
 631             return pidl;
 632           }
 633         }
 634         return NULL;
 635 }
 636 /*************************************************************************
 637  * ILAppend [SHELL32.154]
 638  *
 639  * NOTES
 640  *  Adds the single item to the idlist indicated by pidl.
 641  *  if bEnd is 0, adds the item to the front of the list,
 642  *  otherwise adds the item to the end. (???)
 643  *  Destroys the passed in idlist! (???)
 644  */
 645 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl,LPCITEMIDLIST item,BOOL bEnd)
 646 {
 647         LPITEMIDLIST idlRet;
 648
 649         WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 650
 651         pdump (pidl);
 652         pdump (item);
 653
 654         if (_ILIsDesktop(pidl))
 655         {
 656            idlRet = ILClone(item);
 657            if (pidl)
 658              SHFree (pidl);
 659            return idlRet;
 660         }
 661
 662         if (bEnd)
 663         {
 664           idlRet=ILCombine(pidl,item);
 665         }
 666         else
 667         {
 668           idlRet=ILCombine(item,pidl);
 669         }
 670
 671         SHFree(pidl);
 672         return idlRet;
 673 }
 674 /*************************************************************************
 675  * ILFree [SHELL32.155]
 676  *
 677  * NOTES
 678  *     free_check_ptr - frees memory (if not NULL)
 679  *     allocated by SHMalloc allocator
 680  *     exported by ordinal
 681  */
 682 DWORD WINAPI ILFree(LPITEMIDLIST pidl)
 683 {
 684         TRACE("(pidl=0x%08lx)\n",(DWORD)pidl);
 685
 686         if(!pidl) return FALSE;
 687         SHFree(pidl);
 688         return TRUE;
 689 }
 690 /*************************************************************************
 691  * ILGlobalFree [SHELL32.156]
 692  *
 693  */
 694 void WINAPI ILGlobalFree( LPCITEMIDLIST pidl)
 695 {
 696         TRACE("%p\n",pidl);
 697
 698         if(!pidl) return;
 699         pCOMCTL32_Free(pidl);
 700 }
 701 /*************************************************************************
 702  * ILCreateFromPath [SHELL32.157]
 703  *
 704  */
 705 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 706 {
 707         LPITEMIDLIST pidlnew;
 708         DWORD attributes = 0;
 709
 710         TRACE_(shell)("%s\n",path);
 711
 712         if (SUCCEEDED (SHILCreateFromPathA (path, &pidlnew, &attributes)))
 713           return pidlnew;
 714         return FALSE;
 715 }
 716 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 717 {
 718         LPITEMIDLIST pidlnew;
 719         DWORD attributes = 0;
 720
 721         TRACE_(shell)("%s\n",debugstr_w(path));
 722
 723         if (SUCCEEDED (SHILCreateFromPathW (path, &pidlnew, &attributes)))
 724           return pidlnew;
 725         return FALSE;
 726 }
 727 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 728 {
 729         if ( SHELL_OsIsUnicode())
 730           return ILCreateFromPathW (path);
 731         return ILCreateFromPathA (path);
 732 }
 733 /*************************************************************************
 734  *  SHSimpleIDListFromPath [SHELL32.162]
 735  */
 736 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA (LPCSTR lpszPath)
 737 {
 738         LPITEMIDLIST    pidl=NULL;
 739         HANDLE  hFile;
 740         WIN32_FIND_DATAA        stffile;
 741
 742         TRACE("path=%s\n", lpszPath);
 743
 744         if (!lpszPath) return NULL;
 745
 746         hFile = FindFirstFileA(lpszPath, &stffile);
 747
 748         if ( hFile != INVALID_HANDLE_VALUE )
 749         {
 750           if (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
 751           {
 752             pidl = _ILCreateFolder (&stffile);
 753           }
 754           else
 755           {
 756             pidl = _ILCreateValue (&stffile);
 757           }
 758           FindClose (hFile);
 759         }
 760         return pidl;
 761 }
 762 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW (LPCWSTR lpszPath)
 763 {
 764         char    lpszTemp[MAX_PATH];
 765         TRACE("path=%s\n",debugstr_w(lpszPath));
 766
 767         if (!WideCharToMultiByte( CP_ACP, 0, lpszPath, -1, lpszTemp, sizeof(lpszTemp), NULL, NULL ))
 768             lpszTemp[sizeof(lpszTemp)-1] = 0;
 769
 770         return SHSimpleIDListFromPathA (lpszTemp);
 771 }
 772
 773 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW (LPCVOID lpszPath)
 774 {
 775         if ( SHELL_OsIsUnicode())
 776           return SHSimpleIDListFromPathW (lpszPath);
 777         return SHSimpleIDListFromPathA (lpszPath);
 778 }
 779
 780 /*************************************************************************
 781  * SHGetSpecialFolderLocation           [SHELL32.223]
 782  *
 783  * gets the folder locations from the registry and creates a pidl
 784  * creates missing reg keys and directorys
 785  *
 786  * PARAMS
 787  *   hwndOwner [I]
 788  *   nFolder   [I] CSIDL_xxxxx
 789  *   ppidl     [O] PIDL of a special folder
 790  *
 791  */
 792 HRESULT WINAPI SHGetSpecialFolderLocation(
 793         HWND hwndOwner,
 794         INT nFolder,
 795         LPITEMIDLIST * ppidl)
 796 {
 797         CHAR            szPath[MAX_PATH];
 798         HRESULT         hr = E_INVALIDARG;
 799
 800         TRACE_(shell)("(%04x,0x%x,%p)\n", hwndOwner,nFolder,ppidl);
 801
 802         if (ppidl)
 803         {
 804           *ppidl = NULL;
 805           switch (nFolder)
 806           {
 807             case CSIDL_DESKTOP:
 808               *ppidl = _ILCreateDesktop();
 809               break;
 810
 811             case CSIDL_DRIVES:
 812               *ppidl = _ILCreateMyComputer();
 813               break;
 814
 815             case CSIDL_NETWORK:
 816               *ppidl = _ILCreateNetwork ();
 817               break;
 818
 819             case CSIDL_CONTROLS:
 820               *ppidl = _ILCreateControl ();
 821               break;
 822
 823             case CSIDL_PRINTERS:
 824               *ppidl = _ILCreatePrinter ();
 825               break;
 826
 827             case CSIDL_BITBUCKET:
 828               *ppidl = _ILCreateBitBucket ();
 829               break;
 830
 831             default:
 832               if (SHGetSpecialFolderPathA(hwndOwner, szPath, nFolder, TRUE))
 833               {
 834                 DWORD attributes=0;
 835                 TRACE_(shell)("Value=%s\n",szPath);
 836                 hr = SHILCreateFromPathA(szPath, ppidl, &attributes);
 837               }
 838           }
 839           if(*ppidl) hr = NOERROR;
 840         }
 841
 842         TRACE_(shell)("-- (new pidl %p)\n",*ppidl);
 843         return hr;
 844 }
 845
 846 /*************************************************************************
 847  * SHGetFolderLocation [SHELL32]
 848  *
 849  * NOTES
 850  *  the pidl can be a simple one. since we cant get the path out of the pidl
 851  *  we have to take all data from the pidl
 852  */
 853 HRESULT WINAPI SHGetFolderLocation(
 854         HWND hwnd,
 855         int csidl,
 856         HANDLE hToken,
 857         DWORD dwFlags,
 858         LPITEMIDLIST *ppidl)
 859 {
 860         FIXME("0x%04x 0x%08x 0x%08x 0x%08lx %p\n",
 861          hwnd, csidl, hToken, dwFlags, ppidl);
 862         return SHGetSpecialFolderLocation(hwnd, csidl, ppidl);
 863 }
 864
 865 /*************************************************************************
 866  * SHGetDataFromIDListA [SHELL32.247]
 867  *
 868  * NOTES
 869  *  the pidl can be a simple one. since we cant get the path out of the pidl
 870  *  we have to take all data from the pidl
 871  */
 872 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 873 {
 874         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 875
 876         pdump(pidl);
 877         if (!psf || !dest )  return E_INVALIDARG;
 878
 879         switch (nFormat)
 880         {
 881           case SHGDFIL_FINDDATA:
 882             {
 883                WIN32_FIND_DATAA * pfd = dest;
 884
 885                if ( len < sizeof (WIN32_FIND_DATAA)) return E_INVALIDARG;
 886
 887                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
 888                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
 889                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
 890                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
 891                lstrcpynA(pfd->cFileName,_ILGetTextPointer(pidl), MAX_PATH);
 892                lstrcpynA(pfd->cAlternateFileName,_ILGetSTextPointer(pidl), 14);
 893             }
 894             return NOERROR;
 895
 896           case SHGDFIL_NETRESOURCE:
 897           case SHGDFIL_DESCRIPTIONID:
 898             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
 899             break;
 900
 901           default:
 902             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
 903         }
 904
 905         return E_INVALIDARG;
 906 }
 907 /*************************************************************************
 908  * SHGetDataFromIDListW [SHELL32.247]
 909  *
 910  */
 911 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 912 {
 913         TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 914
 915         pdump(pidl);
 916
 917         if (! psf || !dest )  return E_INVALIDARG;
 918
 919         switch (nFormat)
 920         {
 921           case SHGDFIL_FINDDATA:
 922             {
 923                WIN32_FIND_DATAW * pfd = dest;
 924
 925                if ( len < sizeof (WIN32_FIND_DATAW)) return E_INVALIDARG;
 926
 927                ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
 928                _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
 929                pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
 930                pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
 931                if (!MultiByteToWideChar( CP_ACP, 0, _ILGetTextPointer(pidl), -1,
 932                                          pfd->cFileName, MAX_PATH ))
 933                    pfd->cFileName[MAX_PATH-1] = 0;
 934                if (!MultiByteToWideChar( CP_ACP, 0, _ILGetSTextPointer(pidl), -1,
 935                                          pfd->cAlternateFileName, 14 ))
 936                    pfd->cFileName[13] = 0;
 937             }
 938             return NOERROR;
 939           case SHGDFIL_NETRESOURCE:
 940           case SHGDFIL_DESCRIPTIONID:
 941             FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
 942             break;
 943
 944           default:
 945             ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
 946         }
 947
 948         return E_INVALIDARG;
 949 }
 950
 951 /*************************************************************************
 952  * SHGetPathFromIDListA         [SHELL32.261][NT 4.0: SHELL32.220]
 953  *
 954  * PARAMETERS
 955  *  pidl,   [IN] pidl
 956  *  pszPath [OUT] path
 957  *
 958  * RETURNS
 959  *  path from a passed PIDL.
 960  *
 961  * NOTES
 962  *      NULL returns FALSE
 963  *      desktop pidl gives path to desktopdirectory back
 964  *      special pidls returning FALSE
 965  *
 966  * FIXME
 967  *  fnGetDisplayNameOf can return different types of OLEString
 968  */
 969 BOOL WINAPI SHGetPathFromIDListA (LPCITEMIDLIST pidl,LPSTR pszPath)
 970 {       STRRET str;
 971         LPSHELLFOLDER shellfolder;
 972
 973         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
 974
 975         if (!pidl) return FALSE;
 976
 977         pdump(pidl);
 978
 979         if(_ILIsDesktop(pidl))
 980         {
 981            SHGetSpecialFolderPathA(0, pszPath, CSIDL_DESKTOPDIRECTORY, FALSE);
 982         }
 983         else if (_ILIsSpecialFolder(ILFindLastID(pidl)))
 984         {
 985           /* we are somewhere in a special folder */
 986           return FALSE;
 987         }
 988         else
 989         {
 990           if (SHGetDesktopFolder(&shellfolder)==S_OK)
 991           {
 992             IShellFolder_GetDisplayNameOf(shellfolder,pidl,SHGDN_FORPARSING,&str);
 993             StrRetToStrNA (pszPath, MAX_PATH, &str, pidl);
 994             IShellFolder_Release(shellfolder);
 995           }
 996         }
 997         TRACE_(shell)("-- (%s)\n",pszPath);
 998
 999         return TRUE;
1000 }
1001 /*************************************************************************
1002  * SHGetPathFromIDListW                         [SHELL32.262]
1003  */
1004 BOOL WINAPI SHGetPathFromIDListW (LPCITEMIDLIST pidl,LPWSTR pszPath)
1005 {       char sTemp[MAX_PATH];
1006
1007         TRACE_(shell)("(pidl=%p)\n", pidl);
1008
1009         SHGetPathFromIDListA (pidl, sTemp);
1010         MultiByteToWideChar( CP_ACP, 0, sTemp, -1, pszPath, MAX_PATH );
1011
1012         TRACE_(shell)("-- (%s)\n",debugstr_w(pszPath));
1013
1014         return TRUE;
1015 }
1016
1017 /*************************************************************************
1018  *      SHBindToParent          [shell version 5.0]
1019  */
1020 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1021 {
1022         IShellFolder    * psf;
1023         LPITEMIDLIST    pidlChild, pidlParent;
1024         HRESULT         hr=E_FAIL;
1025
1026         TRACE_(shell)("pidl=%p\n", pidl);
1027         pdump(pidl);
1028
1029         *ppv = NULL;
1030         if (ppidlLast) *ppidlLast = NULL;
1031
1032         if (_ILIsPidlSimple(pidl))
1033         {
1034           /* we are on desktop level */
1035           if (ppidlLast)
1036             *ppidlLast = ILClone(pidl);
1037           hr = SHGetDesktopFolder((IShellFolder**)ppv);
1038         }
1039         else
1040         {
1041           pidlChild =  ILClone(ILFindLastID(pidl));
1042           pidlParent = ILClone(pidl);
1043           ILRemoveLastID(pidlParent);
1044
1045           hr = SHGetDesktopFolder(&psf);
1046
1047           if (SUCCEEDED(hr))
1048             hr = IShellFolder_BindToObject(psf, pidlParent, NULL, riid, ppv);
1049
1050           if (SUCCEEDED(hr) && ppidlLast)
1051             *ppidlLast = pidlChild;
1052           else
1053             ILFree (pidlChild);
1054
1055           SHFree (pidlParent);
1056           if (psf) IShellFolder_Release(psf);
1057         }
1058
1059
1060         TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08lx\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1061         return hr;
1062 }
1063
1064 /*************************************************************************
1065  * SHGetPathFromIDListAW                [SHELL32.221][NT 4.0: SHELL32.219]
1066  */
1067 BOOL WINAPI SHGetPathFromIDListAW(LPCITEMIDLIST pidl,LPVOID pszPath)
1068 {
1069         TRACE_(shell)("(pidl=%p,%p)\n",pidl,pszPath);
1070
1071         if (SHELL_OsIsUnicode())
1072           return SHGetPathFromIDListW(pidl,pszPath);
1073         return SHGetPathFromIDListA(pidl,pszPath);
1074 }
1075
1076 /**************************************************************************
1077  *
1078  *              internal functions
1079  *
1080  *      ### 1. section creating pidls ###
1081  *
1082  *************************************************************************
1083  *  _ILCreateDesktop()
1084  *  _ILCreateIExplore()
1085  *  _ILCreateMyComputer()
1086  *  _ILCreateDrive()
1087  *  _ILCreateFolder()
1088  *  _ILCreateValue()
1089  */
1090 LPITEMIDLIST _ILCreateDesktop()
1091 {       TRACE("()\n");
1092         return _ILCreate(PT_DESKTOP, NULL, 0);
1093 }
1094
1095 LPITEMIDLIST _ILCreateMyComputer()
1096 {       TRACE("()\n");
1097         return _ILCreate(PT_MYCOMP, &CLSID_MyComputer, sizeof(GUID));
1098 }
1099
1100 LPITEMIDLIST _ILCreateIExplore()
1101 {       TRACE("()\n");
1102         return _ILCreate(PT_MYCOMP, &CLSID_Internet, sizeof(GUID));
1103 }
1104
1105 LPITEMIDLIST _ILCreateControl()
1106 {       TRACE("()\n");
1107         return _ILCreate(PT_SPECIAL, &CLSID_ControlPanel, sizeof(GUID));
1108 }
1109
1110 LPITEMIDLIST _ILCreatePrinter()
1111 {       TRACE("()\n");
1112         return _ILCreate(PT_SPECIAL, &CLSID_Printers, sizeof(GUID));
1113 }
1114
1115 LPITEMIDLIST _ILCreateNetwork()
1116 {       TRACE("()\n");
1117         return _ILCreate(PT_MYCOMP, &CLSID_NetworkPlaces, sizeof(GUID));
1118 }
1119
1120 LPITEMIDLIST _ILCreateBitBucket()
1121 {       TRACE("()\n");
1122         return _ILCreate(PT_MYCOMP, &CLSID_RecycleBin, sizeof(GUID));
1123 }
1124
1125 LPITEMIDLIST _ILCreateDrive( LPCSTR lpszNew)
1126 {       char sTemp[4];
1127         lstrcpynA (sTemp,lpszNew,4);
1128         sTemp[2]='\\';
1129         sTemp[3]=0x00;
1130         TRACE("(%s)\n",sTemp);
1131         return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
1132 }
1133
1134 LPITEMIDLIST _ILCreateFolder( WIN32_FIND_DATAA * stffile )
1135 {
1136         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1137         char *  pbuff = buff;
1138         ULONG   len, len1;
1139         LPITEMIDLIST pidl;
1140
1141         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1142
1143         /* prepare buffer with both names */
1144         len = strlen (stffile->cFileName) + 1;
1145         memcpy (pbuff, stffile->cFileName, len);
1146         pbuff += len;
1147
1148         if (stffile->cAlternateFileName)
1149         {
1150           len1 = strlen (stffile->cAlternateFileName)+1;
1151           memcpy (pbuff, stffile->cAlternateFileName, len1);
1152         }
1153         else
1154         {
1155           len1 = 1;
1156           *pbuff = 0x00;
1157         }
1158
1159         pidl = _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
1160
1161         /* set attributes */
1162         if (pidl)
1163         {
1164           LPPIDLDATA pData;
1165           pData = _ILGetDataPointer(pidl);
1166           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1167           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1168           pData->u.folder.uFileAttribs=stffile->dwFileAttributes;
1169         }
1170
1171         return pidl;
1172 }
1173
1174 LPITEMIDLIST _ILCreateValue(WIN32_FIND_DATAA * stffile)
1175 {
1176         char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1177         char *  pbuff = buff;
1178         ULONG   len, len1;
1179         LPITEMIDLIST pidl;
1180
1181         TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1182
1183         /* prepare buffer with both names */
1184         len = strlen (stffile->cFileName) + 1;
1185         memcpy (pbuff, stffile->cFileName, len);
1186         pbuff += len;
1187
1188         if (stffile->cAlternateFileName)
1189         {
1190           len1 = strlen (stffile->cAlternateFileName)+1;
1191           memcpy (pbuff, stffile->cAlternateFileName, len1);
1192         }
1193         else
1194         {
1195           len1 = 1;
1196           *pbuff = 0x00;
1197         }
1198
1199         pidl = _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
1200
1201         /* set attributes */
1202         if (pidl)
1203         {
1204           LPPIDLDATA pData;
1205           pData = _ILGetDataPointer(pidl);
1206           FileTimeToDosDateTime(&(stffile->ftLastWriteTime),&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
1207           pData->u.folder.dwFileSize = stffile->nFileSizeLow;
1208           pData->u.folder.uFileAttribs=stffile->dwFileAttributes;
1209         }
1210
1211         return pidl;
1212 }
1213
1214 LPITEMIDLIST _ILCreateSpecial(LPCSTR szGUID)
1215 {
1216     IID iid;
1217     WCHAR buffer[40];
1218
1219     if (!MultiByteToWideChar( CP_ACP, 0, szGUID, -1, buffer, sizeof(buffer)/sizeof(WCHAR) ))
1220         return NULL;
1221     CLSIDFromString( buffer, &iid );
1222     return _ILCreate(PT_MYCOMP, &iid, sizeof(IID));
1223 }
1224
1225 /**************************************************************************
1226  *  _ILCreate()
1227  *  Creates a new PIDL
1228  *  type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
1229  *  pIn = data
1230  *  uInSize = size of data (raw)
1231  */
1232
1233 LPITEMIDLIST _ILCreate(PIDLTYPE type, LPCVOID pIn, UINT uInSize)
1234 {
1235         LPITEMIDLIST   pidlOut = NULL, pidlTemp = NULL;
1236         LPPIDLDATA     pData;
1237         UINT           uSize = 0;
1238         LPSTR   pszDest;
1239
1240         TRACE("(0x%02x %p %i)\n",type,pIn,uInSize);
1241
1242         switch (type)
1243         {
1244           case PT_DESKTOP:
1245             uSize = 0;
1246             break;
1247           case PT_SPECIAL:
1248           case PT_MYCOMP:
1249             uSize = 2 + 2 + sizeof(GUID);
1250             break;
1251           case PT_DRIVE:
1252             uSize = 2 + 23;
1253             break;
1254           case PT_FOLDER:
1255           case PT_VALUE:
1256             uSize = 2 + 12 + uInSize;
1257             break;
1258           default:
1259             FIXME("can't create type: 0x%08x\n",type);
1260             return NULL;
1261         }
1262
1263         if(!(pidlOut = SHAlloc(uSize + 2))) return NULL;
1264         ZeroMemory(pidlOut, uSize + 2);
1265         pidlOut->mkid.cb = uSize;
1266
1267         switch (type)
1268         {
1269           case PT_DESKTOP:
1270             TRACE("- create Desktop\n");
1271             break;
1272
1273           case PT_SPECIAL:
1274           case PT_MYCOMP:
1275             pData =_ILGetDataPointer(pidlOut);
1276             pData->type = type;
1277             memcpy(&(pData->u.mycomp.guid), pIn, uInSize);
1278             TRACE("- create GUID-pidl\n");
1279             break;
1280
1281           case PT_DRIVE:
1282             pData =_ILGetDataPointer(pidlOut);
1283             pData->type = type;
1284             pszDest = _ILGetTextPointer(pidlOut);
1285             memcpy(pszDest, pIn, uInSize);
1286             TRACE("- create Drive: %s\n",debugstr_a(pszDest));
1287             break;
1288
1289           case PT_FOLDER:
1290           case PT_VALUE:
1291             pData =_ILGetDataPointer(pidlOut);
1292             pData->type = type;
1293             pszDest =  _ILGetTextPointer(pidlOut);
1294             memcpy(pszDest, pIn, uInSize);
1295             TRACE("- create Value: %s\n",debugstr_a(pszDest));
1296             break;
1297         }
1298
1299         pidlTemp = ILGetNext(pidlOut);
1300         if (pidlTemp)
1301           pidlTemp->mkid.cb = 0x00;
1302
1303         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, uSize);
1304         return pidlOut;
1305 }
1306
1307 /**************************************************************************
1308  *  _ILGetDrive()
1309  *
1310  *  Gets the text for the drive eg. 'c:\'
1311  *
1312  * RETURNS
1313  *  strlen (lpszText)
1314  */
1315 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1316 {       TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1317
1318         if(_ILIsMyComputer(pidl))
1319           pidl = ILGetNext(pidl);
1320
1321         if (pidl && _ILIsDrive(pidl))
1322           return _ILSimpleGetText(pidl, pOut, uSize);
1323
1324         return 0;
1325 }
1326
1327 /**************************************************************************
1328  *
1329  *      ### 2. section testing pidls ###
1330  *
1331  **************************************************************************
1332  *  _ILIsDesktop()
1333  *  _ILIsMyComputer()
1334  *  _ILIsSpecialFolder()
1335  *  _ILIsDrive()
1336  *  _ILIsFolder()
1337  *  _ILIsValue()
1338  *  _ILIsPidlSimple()
1339  */
1340 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1341 {       TRACE("(%p)\n",pidl);
1342         return ( !pidl || (pidl && pidl->mkid.cb == 0x00) );
1343 }
1344
1345 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1346 {
1347         REFIID iid = _ILGetGUIDPointer(pidl);
1348
1349         TRACE("(%p)\n",pidl);
1350
1351         if (iid)
1352           return IsEqualIID(iid, &CLSID_MyComputer);
1353         return FALSE;
1354 }
1355
1356 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1357 {
1358         LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1359         TRACE("(%p)\n",pidl);
1360         return (pidl && ( (lpPData && (PT_MYCOMP== lpPData->type || PT_SPECIAL== lpPData->type)) ||
1361                           (pidl && pidl->mkid.cb == 0x00)
1362                         ));
1363 }
1364
1365 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1366 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1367         TRACE("(%p)\n",pidl);
1368         return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1369                                     PT_DRIVE1 == lpPData->type ||
1370                                     PT_DRIVE2 == lpPData->type ||
1371                                     PT_DRIVE3 == lpPData->type));
1372 }
1373
1374 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1375 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1376         TRACE("(%p)\n",pidl);
1377         return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1378 }
1379
1380 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1381 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1382         TRACE("(%p)\n",pidl);
1383         return (pidl && lpPData && PT_VALUE == lpPData->type);
1384 }
1385
1386 /**************************************************************************
1387  *      _ILIsPidlSimple
1388  */
1389 BOOL _ILIsPidlSimple ( LPCITEMIDLIST pidl)
1390 {
1391         BOOL ret = TRUE;
1392
1393         if(! _ILIsDesktop(pidl))        /* pidl=NULL or mkid.cb=0 */
1394         {
1395           WORD len = pidl->mkid.cb;
1396           LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((LPBYTE)pidl) + len );
1397           if (pidlnext->mkid.cb)
1398             ret = FALSE;
1399         }
1400
1401         TRACE("%s\n", ret ? "Yes" : "No");
1402         return ret;
1403 }
1404
1405 /**************************************************************************
1406  *
1407  *      ### 3. section getting values from pidls ###
1408  */
1409
1410  /**************************************************************************
1411  *  _ILSimpleGetText
1412  *
1413  * gets the text for the first item in the pidl (eg. simple pidl)
1414  *
1415  * returns the lenght of the string
1416  */
1417 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1418 {
1419         DWORD           dwReturn=0;
1420         LPSTR           szSrc;
1421         GUID const *    riid;
1422         char szTemp[MAX_PATH];
1423
1424         TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1425
1426         if (!pidl) return 0;
1427
1428         if (szOut)
1429           *szOut = 0;
1430
1431         if (_ILIsDesktop(pidl))
1432         {
1433          /* desktop */
1434           if (HCR_GetClassName(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1435           {
1436             if (szOut)
1437               lstrcpynA(szOut, szTemp, uOutSize);
1438
1439             dwReturn = strlen (szTemp);
1440           }
1441         }
1442         else if (( szSrc = _ILGetTextPointer(pidl) ))
1443         {
1444           /* filesystem */
1445           if (szOut)
1446             lstrcpynA(szOut, szSrc, uOutSize);
1447
1448           dwReturn = strlen(szSrc);
1449         }
1450         else if (( riid = _ILGetGUIDPointer(pidl) ))
1451         {
1452           /* special folder */
1453           if ( HCR_GetClassName(riid, szTemp, MAX_PATH) )
1454           {
1455             if (szOut)
1456               lstrcpynA(szOut, szTemp, uOutSize);
1457
1458             dwReturn = strlen (szTemp);
1459           }
1460         }
1461         else
1462         {
1463           ERR("-- no text\n");
1464         }
1465
1466         TRACE("-- (%p=%s 0x%08lx)\n",szOut,(char*)szOut,dwReturn);
1467         return dwReturn;
1468 }
1469
1470 /**************************************************************************
1471  *
1472  *      ### 4. getting pointers to parts of pidls ###
1473  *
1474  **************************************************************************
1475  *  _ILGetDataPointer()
1476  */
1477 LPPIDLDATA _ILGetDataPointer(LPITEMIDLIST pidl)
1478 {
1479         if(pidl && pidl->mkid.cb != 0x00)
1480           return (LPPIDLDATA) &(pidl->mkid.abID);
1481         return NULL;
1482 }
1483
1484 /**************************************************************************
1485  *  _ILGetTextPointer()
1486  * gets a pointer to the long filename string stored in the pidl
1487  */
1488 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1489 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1490
1491         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1492
1493         if (pdata)
1494         {
1495           switch (pdata->type)
1496           {
1497             case PT_MYCOMP:
1498             case PT_SPECIAL:
1499               return NULL;
1500
1501             case PT_DRIVE:
1502             case PT_DRIVE1:
1503             case PT_DRIVE2:
1504             case PT_DRIVE3:
1505               return (LPSTR)&(pdata->u.drive.szDriveName);
1506
1507             case PT_FOLDER:
1508             case PT_FOLDER1:
1509             case PT_VALUE:
1510             case PT_IESPECIAL:
1511               return (LPSTR)&(pdata->u.file.szNames);
1512
1513             case PT_WORKGRP:
1514             case PT_COMP:
1515             case PT_NETWORK:
1516             case PT_SHARE:
1517               return (LPSTR)&(pdata->u.network.szNames);
1518           }
1519         }
1520         return NULL;
1521 }
1522
1523 /**************************************************************************
1524  *  _ILGetSTextPointer()
1525  * gets a pointer to the short filename string stored in the pidl
1526  */
1527 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
1528 {/*     TRACE(pidl,"(pidl%p)\n", pidl);*/
1529
1530         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1531
1532         if (pdata)
1533         {
1534           switch (pdata->type)
1535           {
1536             case PT_FOLDER:
1537             case PT_VALUE:
1538             case PT_IESPECIAL:
1539               return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
1540
1541             case PT_WORKGRP:
1542               return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
1543           }
1544         }
1545         return NULL;
1546 }
1547
1548 /**************************************************************************
1549  * _ILGetGUIDPointer()
1550  *
1551  * returns reference to guid stored in some pidls
1552  */
1553 REFIID _ILGetGUIDPointer(LPCITEMIDLIST pidl)
1554 {
1555         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1556
1557         if (pdata)
1558         {
1559           switch (pdata->type)
1560           {
1561             case PT_SPECIAL:
1562             case PT_MYCOMP:
1563               return (REFIID) &(pdata->u.mycomp.guid);
1564           }
1565         }
1566         return NULL;
1567 }
1568
1569 /*************************************************************************
1570  * _ILGetFileDateTime
1571  *
1572  * Given the ItemIdList, get the FileTime
1573  *
1574  * PARAMS
1575  *      pidl        [I] The ItemIDList
1576  *      pFt         [I] the resulted FILETIME of the file
1577  *
1578  * RETURNS
1579  *     True if Successful
1580  *
1581  * NOTES
1582  *
1583  */
1584 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
1585 {
1586     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1587
1588     if(! pdata) return FALSE;
1589
1590     switch (pdata->type)
1591     {
1592         case PT_FOLDER:
1593             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, pFt);
1594             break;
1595         case PT_VALUE:
1596             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
1597             break;
1598         default:
1599             return FALSE;
1600     }
1601     return TRUE;
1602 }
1603
1604 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1605 {
1606         FILETIME ft,lft;
1607         SYSTEMTIME time;
1608
1609         if (! _ILGetFileDateTime( pidl, &ft )) return FALSE;
1610
1611         FileTimeToLocalFileTime(&ft, &lft);
1612         FileTimeToSystemTime (&lft, &time);
1613         return GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
1614 }
1615
1616 /*************************************************************************
1617  * _ILGetFileSize
1618  *
1619  * Given the ItemIdList, get the FileSize
1620  *
1621  * PARAMS
1622  *      pidl    [I] The ItemIDList
1623  *      pOut    [I] The buffer to save the result
1624  *      uOutsize [I] The size of the buffer
1625  *
1626  * RETURNS
1627  *     The FileSize
1628  *
1629  * NOTES
1630  *      pOut can be null when no string is needed
1631  *
1632  */
1633 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1634 {
1635         LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1636         DWORD dwSize;
1637
1638         if(! pdata) return 0;
1639
1640         switch (pdata->type)
1641         {
1642           case PT_VALUE:
1643             dwSize = pdata->u.file.dwFileSize;
1644             if (pOut) StrFormatByteSizeA(dwSize, pOut, uOutSize);
1645             return dwSize;
1646         }
1647         if (pOut) *pOut = 0x00;
1648         return 0;
1649 }
1650
1651 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1652 {
1653         char szTemp[MAX_PATH];
1654         const char * pPoint;
1655         LPITEMIDLIST  pidlTemp=pidl;
1656
1657         TRACE("pidl=%p\n",pidl);
1658
1659         if (!pidl) return FALSE;
1660
1661         pidlTemp = ILFindLastID(pidl);
1662
1663         if (!_ILIsValue(pidlTemp)) return FALSE;
1664         if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH)) return FALSE;
1665
1666         pPoint = PathFindExtensionA(szTemp);
1667
1668         if (! *pPoint) return FALSE;
1669
1670         pPoint++;
1671         lstrcpynA(pOut, pPoint, uOutSize);
1672         TRACE("%s\n",pOut);
1673
1674         return TRUE;
1675 }
1676
1677 /*************************************************************************
1678  * _ILGetFileType
1679  *
1680  * Given the ItemIdList, get the file type description
1681  *
1682  * PARAMS
1683  *      pidl        [I] The ItemIDList (simple)
1684  *      pOut        [I] The buffer to save the result
1685  *      uOutsize    [I] The size of the buffer
1686  *
1687  * RETURNS
1688  *      nothing
1689  *
1690  * NOTES
1691  *      This function copies as much as possible into the buffer.
1692  */
1693 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1694 {
1695         if(_ILIsValue(pidl))
1696         {
1697           char sTemp[64];
1698           if(uOutSize > 0)
1699           {
1700             pOut[0] = 0;
1701           }
1702           if (_ILGetExtension (pidl, sTemp, 64))
1703           {
1704             if (!( HCR_MapTypeToValue(sTemp, sTemp, 64, TRUE)
1705                 && HCR_MapTypeToValue(sTemp, pOut, uOutSize, FALSE )))
1706             {
1707               lstrcpynA (pOut, sTemp, uOutSize - 6);
1708               strcat (pOut, "-file");
1709             }
1710           }
1711         }
1712         else
1713         {
1714           lstrcpynA(pOut, "Folder", uOutSize);
1715         }
1716 }
1717
1718 /*************************************************************************
1719  * _ILGetFileAttributes
1720  *
1721  * Given the ItemIdList, get the Attrib string format
1722  *
1723  * PARAMS
1724  *      pidl        [I] The ItemIDList
1725  *      pOut        [I] The buffer to save the result
1726  *      uOutsize    [I] The size of the Buffer
1727  *
1728  * RETURNS
1729  *     Attributes
1730  *
1731  * FIXME
1732  *  return value 0 in case of error is a valid return value
1733  *
1734  */
1735 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1736 {
1737         LPPIDLDATA pData =_ILGetDataPointer(pidl);
1738         WORD wAttrib = 0;
1739         int i;
1740
1741         if(! pData) return 0;
1742
1743         switch(pData->type)
1744         {
1745           case PT_FOLDER:
1746             wAttrib = pData->u.folder.uFileAttribs;
1747             break;
1748           case PT_VALUE:
1749             wAttrib = pData->u.file.uFileAttribs;
1750             break;
1751         }
1752
1753         if(uOutSize >= 6)
1754         {
1755           i=0;
1756           if(wAttrib & FILE_ATTRIBUTE_READONLY)
1757           {
1758             pOut[i++] = 'R';
1759           }
1760           if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
1761           {
1762             pOut[i++] = 'H';
1763           }
1764           if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
1765           {
1766             pOut[i++] = 'S';
1767           }
1768           if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
1769           {
1770             pOut[i++] = 'A';
1771           }
1772           if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
1773           {
1774             pOut[i++] = 'C';
1775           }
1776           pOut[i] = 0x00;
1777         }
1778         return wAttrib;
1779 }
1780
1781 /*************************************************************************
1782 * ILFreeaPidl
1783 *
1784 * free a aPidl struct
1785 */
1786 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
1787 {
1788         int   i;
1789
1790         if(apidl)
1791         {
1792           for(i = 0; i < cidl; i++) SHFree(apidl[i]);
1793           SHFree(apidl);
1794         }
1795 }
1796
1797 /*************************************************************************
1798 * ILCopyaPidl
1799 *
1800 * copys a aPidl struct
1801 */
1802 LPITEMIDLIST *  _ILCopyaPidl(LPITEMIDLIST * apidlsrc, UINT cidl)
1803 {
1804         int i;
1805         LPITEMIDLIST * apidldest = (LPITEMIDLIST*)SHAlloc(cidl * sizeof(LPITEMIDLIST));
1806         if(!apidlsrc) return NULL;
1807
1808         for(i = 0; i < cidl; i++)
1809           apidldest[i] = ILClone(apidlsrc[i]);
1810
1811         return apidldest;
1812 }
1813
1814 /*************************************************************************
1815 * _ILCopyCidaToaPidl
1816 *
1817 * creates aPidl from CIDA
1818 */
1819 LPITEMIDLIST * _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPCIDA cida)
1820 {
1821         int i;
1822         LPITEMIDLIST * dst = (LPITEMIDLIST*)SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
1823
1824         if(!dst) return NULL;
1825
1826         if (pidl)
1827           *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
1828
1829         for(i = 0; i < cida->cidl; i++)
1830           dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
1831
1832         return dst;
1833 }