dlls/shell32/pidl.c

   1 /*
   2  *    pidl Handling
   3  *
   4  *    Copyright 1998    Juergen Schmied
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * NOTES
  21  *  a pidl == NULL means desktop and is legal
  22  *
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <ctype.h>
  29 #include <stdarg.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #define COBJMACROS
  34 #define NONAMELESSUNION
  35 #define NONAMELESSSTRUCT
  36
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winreg.h"
  40 #include "objbase.h"
  41 #include "shlguid.h"
  42 #include "winerror.h"
  43 #include "winnls.h"
  44 #include "undocshell.h"
  45 #include "shell32_main.h"
  46 #include "shellapi.h"
  47 #include "shlwapi.h"
  48
  49 #include "pidl.h"
  50 #include "wine/debug.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  53 WINE_DECLARE_DEBUG_CHANNEL(shell);
  54
  55 /* from comctl32.dll */
  56 extern LPVOID WINAPI Alloc(INT);
  57 extern BOOL WINAPI Free(LPVOID);
  58
  59 /*************************************************************************
  60  * ILGetDisplayNameEx        [SHELL32.186]
  61  *
  62  * Retrieves the display name of an ItemIDList
  63  *
  64  * PARAMS
  65  *  psf        [I]   Shell Folder to start with, if NULL the desktop is used
  66  *  pidl       [I]   ItemIDList relativ to the psf to get the display name for
  67  *  path       [O]   Filled in with the display name, assumed to be at least MAX_PATH long
  68  *  type       [I]   Type of display name to retrieve
  69  *                    0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
  70  *                    1 = SHGDN_NORMAL relative to the root folder
  71  *                    2 = SHGDN_INFOLDER relative to the root folder, only the last name
  72  *
  73  * RETURNS
  74  *  True if the display name could be retrieved successfully, False otherwise
  75  */
  76 BOOL WINAPI ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
  77 {
  78     BOOL ret = FALSE;
  79     WCHAR wPath[MAX_PATH];
  80
  81     TRACE("%p %p %p %d\n", psf, pidl, path, type);
  82
  83     if (!pidl || !path)
  84         return FALSE;
  85
  86     ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
  87     WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
  88     TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
  89
  90     return ret;
  91 }
  92
  93 BOOL WINAPI ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
  94 {
  95     LPSHELLFOLDER psfParent, lsf = psf;
  96     HRESULT ret = NO_ERROR;
  97     LPCITEMIDLIST pidllast;
  98     STRRET strret;
  99     DWORD flag;
 100
 101     TRACE("%p %p %p %d\n", psf, pidl, path, type);
 102
 103     if (!pidl || !path)
 104         return FALSE;
 105
 106     if (!lsf)
 107     {
 108         ret = SHGetDesktopFolder(&lsf);
 109         if (FAILED(ret))
 110             return FALSE;
 111     }
 112
 113     if (type >= 0 && type <= 2)
 114     {
 115         switch (type)
 116         {
 117         case ILGDN_FORPARSING:
 118             flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 119             break;
 120         case ILGDN_NORMAL:
 121             flag = SHGDN_NORMAL;
 122             break;
 123         case ILGDN_INFOLDER:
 124             flag = SHGDN_INFOLDER;
 125             break;
 126         default:
 127             FIXME("Unknown type parameter = %x\n", type);
 128             flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
 129             break;
 130         }
 131         if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
 132         {
 133             ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
 134             if (SUCCEEDED(ret))
 135             {
 136                 if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
 137                     ret = E_FAIL;
 138             }
 139         }
 140         else
 141         {
 142             ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
 143             if (SUCCEEDED(ret))
 144             {
 145                 ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
 146                 if (SUCCEEDED(ret))
 147                 {
 148                     if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
 149                         ret = E_FAIL;
 150                 }
 151                 IShellFolder_Release(psfParent);
 152             }
 153         }
 154     }
 155
 156     TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
 157
 158     if (!psf)
 159         IShellFolder_Release(lsf);
 160     return SUCCEEDED(ret);
 161 }
 162
 163 BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
 164 {
 165     TRACE_(shell)("%p %p %p %d\n", psf, pidl, path, type);
 166
 167     if (SHELL_OsIsUnicode())
 168         return ILGetDisplayNameExW(psf, pidl, path, type);
 169     return ILGetDisplayNameExA(psf, pidl, path, type);
 170 }
 171
 172 /*************************************************************************
 173  * ILGetDisplayName            [SHELL32.15]
 174  */
 175 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
 176 {
 177     TRACE_(shell)("%p %p\n", pidl, path);
 178
 179     if (SHELL_OsIsUnicode())
 180         return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
 181     return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
 182 }
 183
 184 /*************************************************************************
 185  * ILFindLastID [SHELL32.16]
 186  *
 187  * NOTES
 188  *   observed: pidl=Desktop return=pidl
 189  */
 190 LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
 191 {
 192     LPCITEMIDLIST   pidlLast = pidl;
 193
 194     TRACE("(pidl=%p)\n",pidl);
 195
 196     if (!pidl)
 197         return NULL;
 198
 199     while (pidl->mkid.cb)
 200     {
 201         pidlLast = pidl;
 202         pidl = ILGetNext(pidl);
 203     }
 204     return (LPITEMIDLIST)pidlLast;
 205 }
 206
 207 /*************************************************************************
 208  * ILRemoveLastID [SHELL32.17]
 209  *
 210  * NOTES
 211  *   when pidl=Desktop return=FALSE
 212  */
 213 BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
 214 {
 215     TRACE_(shell)("pidl=%p\n",pidl);
 216
 217     if (!pidl || !pidl->mkid.cb)
 218         return 0;
 219     ILFindLastID(pidl)->mkid.cb = 0;
 220     return 1;
 221 }
 222
 223 /*************************************************************************
 224  * ILClone [SHELL32.18]
 225  *
 226  * NOTES
 227  *    duplicate an idlist
 228  */
 229 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
 230 {
 231     DWORD    len;
 232     LPITEMIDLIST  newpidl;
 233
 234     if (!pidl)
 235         return NULL;
 236
 237     len = ILGetSize(pidl);
 238     newpidl = (LPITEMIDLIST)SHAlloc(len);
 239     if (newpidl)
 240         memcpy(newpidl,pidl,len);
 241
 242     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 243     pdump(pidl);
 244
 245     return newpidl;
 246 }
 247
 248 /*************************************************************************
 249  * ILCloneFirst [SHELL32.19]
 250  *
 251  * NOTES
 252  *  duplicates the first idlist of a complex pidl
 253  */
 254 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 255 {
 256     DWORD len;
 257     LPITEMIDLIST pidlNew = NULL;
 258
 259     TRACE("pidl=%p\n", pidl);
 260     pdump(pidl);
 261
 262     if (pidl)
 263     {
 264         len = pidl->mkid.cb;
 265         pidlNew = (LPITEMIDLIST) SHAlloc (len+2);
 266         if (pidlNew)
 267         {
 268             memcpy(pidlNew,pidl,len+2);        /* 2 -> mind a desktop pidl */
 269
 270             if (len)
 271                 ILGetNext(pidlNew)->mkid.cb = 0x00;
 272         }
 273     }
 274     TRACE("-- newpidl=%p\n",pidlNew);
 275
 276     return pidlNew;
 277 }
 278
 279 /*************************************************************************
 280  * ILLoadFromStream (SHELL32.26)
 281  *
 282  * NOTES
 283  *   the first two bytes are the len, the pidl is following then
 284  */
 285 HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
 286 {
 287     WORD        wLen = 0;
 288     DWORD       dwBytesRead;
 289     HRESULT     ret = E_FAIL;
 290
 291
 292     TRACE_(shell)("%p %p\n", pStream ,  ppPidl);
 293
 294     SHFree(*ppPidl);
 295     *ppPidl = NULL;
 296
 297     IStream_AddRef (pStream);
 298
 299     if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
 300     {
 301         TRACE("PIDL length is %d\n", wLen);
 302         if (wLen != 0)
 303         {
 304             *ppPidl = SHAlloc (wLen);
 305             if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
 306             {
 307                 TRACE("Stream read OK\n");
 308                 ret = S_OK;
 309             }
 310             else
 311             {
 312                 WARN("reading pidl failed\n");
 313                 SHFree(*ppPidl);
 314                 *ppPidl = NULL;
 315             }
 316         }
 317         else
 318         {
 319             *ppPidl = NULL;
 320             ret = S_OK;
 321         }
 322     }
 323
 324     /* we are not yet fully compatible */
 325     if (*ppPidl && !pcheck(*ppPidl))
 326     {
 327         WARN("Check failed\n");
 328         SHFree(*ppPidl);
 329         *ppPidl = NULL;
 330     }
 331
 332     IStream_Release (pStream);
 333     TRACE("done\n");
 334     return ret;
 335 }
 336
 337 /*************************************************************************
 338  * ILSaveToStream (SHELL32.27)
 339  *
 340  * NOTES
 341  *   the first two bytes are the len, the pidl is following then
 342  */
 343 HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
 344 {
 345     LPCITEMIDLIST    pidl;
 346     WORD        wLen = 0;
 347     HRESULT        ret = E_FAIL;
 348
 349     TRACE_(shell)("%p %p\n", pStream, pPidl);
 350
 351     IStream_AddRef (pStream);
 352
 353     pidl = pPidl;
 354     while (pidl->mkid.cb)
 355     {
 356         wLen += sizeof(WORD) + pidl->mkid.cb;
 357         pidl = ILGetNext(pidl);
 358     }
 359
 360     if (SUCCEEDED(IStream_Write(pStream, (LPVOID)&wLen, 2, NULL)))
 361     {
 362         if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
 363             ret = S_OK;
 364     }
 365     IStream_Release (pStream);
 366
 367     return ret;
 368 }
 369
 370 /*************************************************************************
 371  * SHILCreateFromPath        [SHELL32.28]
 372  *
 373  * Create an ItemIDList from a path
 374  *
 375  * PARAMS
 376  *  path       [I]
 377  *  ppidl      [O]
 378  *  attributes [I/O] requested attributes on call and actual attributes when
 379  *                   the function returns
 380  *
 381  * RETURNS
 382  *  NO_ERROR if successful, or an OLE errer code otherwise
 383  *
 384  * NOTES
 385  *  Wrapper for IShellFolder_ParseDisplayName().
 386  */
 387 HRESULT WINAPI SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 388 {
 389     WCHAR lpszDisplayName[MAX_PATH];
 390
 391     TRACE_(shell)("%s %p 0x%08x\n", path, ppidl, attributes ? *attributes : 0);
 392
 393     if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
 394         lpszDisplayName[MAX_PATH-1] = 0;
 395
 396     return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
 397 }
 398
 399 HRESULT WINAPI SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
 400 {
 401     LPSHELLFOLDER sf;
 402     DWORD pchEaten;
 403     HRESULT ret = E_FAIL;
 404
 405     TRACE_(shell)("%s %p 0x%08x\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
 406
 407     if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 408     {
 409         ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
 410         IShellFolder_Release(sf);
 411     }
 412     return ret;
 413 }
 414
 415 HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
 416 {
 417     if ( SHELL_OsIsUnicode())
 418         return SHILCreateFromPathW (path, ppidl, attributes);
 419     return SHILCreateFromPathA (path, ppidl, attributes);
 420 }
 421
 422 /*************************************************************************
 423  * SHCloneSpecialIDList      [SHELL32.89]
 424  *
 425  * Create an ItemIDList to one of the special folders.
 426
 427  * PARAMS
 428  *  hwndOwner    [in]
 429  *  nFolder      [in]    CSIDL_xxxxx
 430  *  fCreate      [in]    Create folder if it does not exist
 431  *
 432  * RETURNS
 433  *  Success: The newly created pidl
 434  *  Failure: NULL, if inputs are invalid.
 435  *
 436  * NOTES
 437  *  exported by ordinal.
 438  *  Caller is responsible for deallocating the returned ItemIDList with the
 439  *  shells IMalloc interface, aka ILFree.
 440  */
 441 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
 442 {
 443     LPITEMIDLIST ppidl;
 444     TRACE_(shell)("(hwnd=%p,csidl=0x%x,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
 445
 446     if (fCreate)
 447         nFolder |= CSIDL_FLAG_CREATE;
 448
 449     SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 450     return ppidl;
 451 }
 452
 453 /*************************************************************************
 454  * ILGlobalClone             [SHELL32.20]
 455  *
 456  * Clones an ItemIDList using Alloc.
 457  *
 458  * PARAMS
 459  *  pidl       [I]   ItemIDList to clone
 460  *
 461  * RETURNS
 462  *  Newly allocated ItemIDList.
 463  *
 464  * NOTES
 465  *  exported by ordinal.
 466  */
 467 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 468 {
 469     DWORD    len;
 470     LPITEMIDLIST  newpidl;
 471
 472     if (!pidl)
 473         return NULL;
 474
 475     len = ILGetSize(pidl);
 476     newpidl = (LPITEMIDLIST)Alloc(len);
 477     if (newpidl)
 478         memcpy(newpidl,pidl,len);
 479
 480     TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
 481     pdump(pidl);
 482
 483     return newpidl;
 484 }
 485
 486 /*************************************************************************
 487  * ILIsEqual [SHELL32.21]
 488  *
 489  */
 490 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 491 {
 492     char    szData1[MAX_PATH];
 493     char    szData2[MAX_PATH];
 494
 495     LPCITEMIDLIST pidltemp1 = pidl1;
 496     LPCITEMIDLIST pidltemp2 = pidl2;
 497
 498     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 499
 500     /*
 501      * Explorer reads from registry directly (StreamMRU),
 502      * so we can only check here
 503      */
 504     if (!pcheck(pidl1) || !pcheck (pidl2))
 505         return FALSE;
 506
 507     pdump (pidl1);
 508     pdump (pidl2);
 509
 510     if (!pidl1 || !pidl2)
 511         return FALSE;
 512
 513     while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 514     {
 515         _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 516         _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 517
 518         if (strcasecmp( szData1, szData2 ))
 519             return FALSE;
 520
 521         pidltemp1 = ILGetNext(pidltemp1);
 522         pidltemp2 = ILGetNext(pidltemp2);
 523     }
 524
 525     if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 526         return TRUE;
 527
 528     return FALSE;
 529 }
 530
 531 /*************************************************************************
 532  * ILIsParent                [SHELL32.23]
 533  *
 534  * Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
 535  *
 536  * PARAMS
 537  *  pidlParent [I]
 538  *  pidlChild  [I]
 539  *  bImmediate [I]   only return true if the parent is the direct parent
 540  *                   of the child
 541  *
 542  * RETURNS
 543  *  True if the parent ItemIDlist is a complete part of the child ItemIdList,
 544  *  False otherwise.
 545  *
 546  * NOTES
 547  *  parent = a/b, child = a/b/c -> true, c is in folder a/b
 548  *  child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
 549  *  child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
 550  */
 551 BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
 552 {
 553     char    szData1[MAX_PATH];
 554     char    szData2[MAX_PATH];
 555     LPCITEMIDLIST pParent = pidlParent;
 556     LPCITEMIDLIST pChild = pidlChild;
 557
 558     TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
 559
 560     if (!pParent || !pChild)
 561         return FALSE;
 562
 563     while (pParent->mkid.cb && pChild->mkid.cb)
 564     {
 565         _ILSimpleGetText(pParent, szData1, MAX_PATH);
 566         _ILSimpleGetText(pChild, szData2, MAX_PATH);
 567
 568         if (strcasecmp( szData1, szData2 ))
 569             return FALSE;
 570
 571         pParent = ILGetNext(pParent);
 572         pChild = ILGetNext(pChild);
 573     }
 574
 575     /* child shorter or has equal length to parent */
 576     if (pParent->mkid.cb || !pChild->mkid.cb)
 577         return FALSE;
 578
 579     /* not immediate descent */
 580     if ( ILGetNext(pChild)->mkid.cb && bImmediate)
 581         return FALSE;
 582
 583     return TRUE;
 584 }
 585
 586 /*************************************************************************
 587  * ILFindChild               [SHELL32.24]
 588  *
 589  *  Compares elements from pidl1 and pidl2.
 590  *
 591  * PARAMS
 592  *  pidl1      [I]
 593  *  pidl2      [I]
 594  *
 595  * RETURNS
 596  *  pidl1 is desktop      pidl2
 597  *  pidl1 shorter pidl2   pointer to first different element of pidl2
 598  *                        if there was at least one equal element
 599  *  pidl2 shorter pidl1   0
 600  *  pidl2 equal pidl1     pointer to last 0x00-element of pidl2
 601  *
 602  * NOTES
 603  *  exported by ordinal.
 604  */
 605 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 606 {
 607     char    szData1[MAX_PATH];
 608     char    szData2[MAX_PATH];
 609
 610     LPCITEMIDLIST pidltemp1 = pidl1;
 611     LPCITEMIDLIST pidltemp2 = pidl2;
 612     LPCITEMIDLIST ret=NULL;
 613
 614     TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
 615
 616     /* explorer reads from registry directly (StreamMRU),
 617        so we can only check here */
 618     if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
 619         return FALSE;
 620
 621     pdump (pidl1);
 622     pdump (pidl2);
 623
 624     if (_ILIsDesktop(pidl1))
 625     {
 626         ret = pidl2;
 627     }
 628     else
 629     {
 630         while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 631         {
 632             _ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
 633             _ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
 634
 635             if (strcasecmp(szData1,szData2))
 636                 break;
 637
 638             pidltemp1 = ILGetNext(pidltemp1);
 639             pidltemp2 = ILGetNext(pidltemp2);
 640             ret = pidltemp2;
 641         }
 642
 643         if (pidltemp1->mkid.cb)
 644             ret = NULL; /* elements of pidl1 left*/
 645     }
 646     TRACE_(shell)("--- %p\n", ret);
 647     return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
 648 }
 649
 650 /*************************************************************************
 651  * ILCombine                 [SHELL32.25]
 652  *
 653  * Concatenates two complex ItemIDLists.
 654  *
 655  * PARAMS
 656  *  pidl1      [I]   first complex ItemIDLists
 657  *  pidl2      [I]   complex ItemIDLists to append
 658  *
 659  * RETURNS
 660  *  if both pidl's == NULL      NULL
 661  *  if pidl1 == NULL            cloned pidl2
 662  *  if pidl2 == NULL            cloned pidl1
 663  *  otherwise new pidl with pidl2 appended to pidl1
 664  *
 665  * NOTES
 666  *  exported by ordinal.
 667  *  Does not destroy the passed in ItemIDLists!
 668  */
 669 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 670 {
 671     DWORD    len1,len2;
 672     LPITEMIDLIST  pidlNew;
 673
 674     TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
 675
 676     if (!pidl1 && !pidl2) return NULL;
 677
 678     pdump (pidl1);
 679     pdump (pidl2);
 680
 681     if (!pidl1)
 682     {
 683         pidlNew = ILClone(pidl2);
 684         return pidlNew;
 685     }
 686
 687     if (!pidl2)
 688     {
 689         pidlNew = ILClone(pidl1);
 690         return pidlNew;
 691     }
 692
 693     len1  = ILGetSize(pidl1)-2;
 694     len2  = ILGetSize(pidl2);
 695     pidlNew  = SHAlloc(len1+len2);
 696
 697     if (pidlNew)
 698     {
 699         memcpy(pidlNew,pidl1,len1);
 700         memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 701     }
 702
 703     /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 704     return pidlNew;
 705 }
 706
 707 /*************************************************************************
 708  *  SHGetRealIDL [SHELL32.98]
 709  *
 710  * NOTES
 711  */
 712 HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
 713 {
 714     IDataObject* pDataObj;
 715     HRESULT hr;
 716
 717     hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
 718                              &IID_IDataObject, 0, (LPVOID*)&pDataObj);
 719     if (SUCCEEDED(hr))
 720     {
 721         STGMEDIUM medium;
 722         FORMATETC fmt;
 723
 724         fmt.cfFormat = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
 725         fmt.ptd = NULL;
 726         fmt.dwAspect = DVASPECT_CONTENT;
 727         fmt.lindex = -1;
 728         fmt.tymed = TYMED_HGLOBAL;
 729
 730         hr = IDataObject_GetData(pDataObj, &fmt, &medium);
 731
 732         IDataObject_Release(pDataObj);
 733
 734         if (SUCCEEDED(hr))
 735         {
 736             /*assert(pida->cidl==1);*/
 737             LPIDA pida = (LPIDA)GlobalLock(medium.u.hGlobal);
 738
 739             LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
 740             LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
 741
 742             *pidlReal = ILCombine(pidl_folder, pidl_child);
 743
 744             if (!*pidlReal)
 745                 hr = E_OUTOFMEMORY;
 746
 747             GlobalUnlock(medium.u.hGlobal);
 748             GlobalFree(medium.u.hGlobal);
 749         }
 750     }
 751
 752     return hr;
 753 }
 754
 755 /*************************************************************************
 756  *  SHLogILFromFSIL [SHELL32.95]
 757  *
 758  * NOTES
 759  *  pild = CSIDL_DESKTOP    ret = 0
 760  *  pild = CSIDL_DRIVES     ret = 0
 761  */
 762 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 763 {
 764     FIXME("(pidl=%p)\n",pidl);
 765
 766     pdump(pidl);
 767
 768     return 0;
 769 }
 770
 771 /*************************************************************************
 772  * ILGetSize                 [SHELL32.152]
 773  *
 774  * Gets the byte size of an ItemIDList including zero terminator
 775  *
 776  * PARAMS
 777  *  pidl       [I]   ItemIDList
 778  *
 779  * RETURNS
 780  *  size of pidl in bytes
 781  *
 782  * NOTES
 783  *  exported by ordinal
 784  */
 785 UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
 786 {
 787     LPCSHITEMID si = &(pidl->mkid);
 788     UINT len=0;
 789
 790     if (pidl)
 791     {
 792         while (si->cb)
 793         {
 794             len += si->cb;
 795             si  = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
 796         }
 797         len += 2;
 798     }
 799     TRACE("pidl=%p size=%u\n",pidl, len);
 800     return len;
 801 }
 802
 803 /*************************************************************************
 804  * ILGetNext                 [SHELL32.153]
 805  *
 806  * Gets the next ItemID of an ItemIDList
 807  *
 808  * PARAMS
 809  *  pidl       [I]   ItemIDList
 810  *
 811  * RETURNS
 812  *  null -> null
 813  *  desktop -> null
 814  *  simple pidl -> pointer to 0x0000 element
 815  *
 816  * NOTES
 817  *  exported by ordinal.
 818  */
 819 LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
 820 {
 821     WORD len;
 822
 823     TRACE("%p\n", pidl);
 824
 825     if (pidl)
 826     {
 827         len =  pidl->mkid.cb;
 828         if (len)
 829         {
 830             pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
 831             TRACE("-- %p\n", pidl);
 832             return (LPITEMIDLIST)pidl;
 833         }
 834     }
 835     return NULL;
 836 }
 837
 838 /*************************************************************************
 839  * ILAppend                  [SHELL32.154]
 840  *
 841  * Adds the single ItemID item to the ItemIDList indicated by pidl.
 842  * If bEnd is FALSE, inserts the item in the front of the list,
 843  * otherwise it adds the item to the end. (???)
 844  *
 845  * PARAMS
 846  *  pidl       [I]   ItemIDList to extend
 847  *  item       [I]   ItemID to prepend/append
 848  *  bEnd       [I]   Indicates if the item should be appended
 849  *
 850  * NOTES
 851  *  Destroys the passed in idlist! (???)
 852  */
 853 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl, LPCITEMIDLIST item, BOOL bEnd)
 854 {
 855     LPITEMIDLIST idlRet;
 856
 857     WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 858
 859     pdump (pidl);
 860     pdump (item);
 861
 862     if (_ILIsDesktop(pidl))
 863     {
 864         idlRet = ILClone(item);
 865         SHFree (pidl);
 866         return idlRet;
 867     }
 868
 869     if (bEnd)
 870         idlRet = ILCombine(pidl, item);
 871     else
 872         idlRet = ILCombine(item, pidl);
 873
 874     SHFree(pidl);
 875     return idlRet;
 876 }
 877
 878 /*************************************************************************
 879  * ILFree                    [SHELL32.155]
 880  *
 881  * Frees memory (if not NULL) allocated by SHMalloc allocator
 882  *
 883  * PARAMS
 884  *  pidl         [I]
 885  *
 886  * RETURNS
 887  *  Nothing
 888  *
 889  * NOTES
 890  *  exported by ordinal
 891  */
 892 void WINAPI ILFree(LPITEMIDLIST pidl)
 893 {
 894     TRACE("(pidl=%p)\n",pidl);
 895     SHFree(pidl);
 896 }
 897
 898 /*************************************************************************
 899  * ILGlobalFree              [SHELL32.156]
 900  *
 901  * Frees memory (if not NULL) allocated by Alloc allocator
 902  *
 903  * PARAMS
 904  *  pidl         [I]
 905  *
 906  * RETURNS
 907  *  Nothing
 908  *
 909  * NOTES
 910  *  exported by ordinal.
 911  */
 912 void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 913 {
 914     TRACE("%p\n", pidl);
 915
 916     if (pidl)
 917         Free(pidl);
 918 }
 919
 920 /*************************************************************************
 921  * ILCreateFromPathA         [SHELL32.189]
 922  *
 923  * Creates a complex ItemIDList from a path and returns it.
 924  *
 925  * PARAMS
 926  *  path         [I]
 927  *
 928  * RETURNS
 929  *  the newly created complex ItemIDList or NULL if failed
 930  *
 931  * NOTES
 932  *  exported by ordinal.
 933  */
 934 LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
 935 {
 936     LPITEMIDLIST pidlnew = NULL;
 937
 938     TRACE_(shell)("%s\n", debugstr_a(path));
 939
 940     if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
 941         return pidlnew;
 942     return NULL;
 943 }
 944
 945 /*************************************************************************
 946  * ILCreateFromPathW         [SHELL32.190]
 947  *
 948  * See ILCreateFromPathA.
 949  */
 950 LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
 951 {
 952     LPITEMIDLIST pidlnew = NULL;
 953
 954     TRACE_(shell)("%s\n", debugstr_w(path));
 955
 956     if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
 957         return pidlnew;
 958     return NULL;
 959 }
 960
 961 /*************************************************************************
 962  * ILCreateFromPath          [SHELL32.157]
 963  */
 964 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
 965 {
 966     if ( SHELL_OsIsUnicode())
 967         return ILCreateFromPathW (path);
 968     return ILCreateFromPathA (path);
 969 }
 970
 971 /*************************************************************************
 972  * _ILParsePathW             [internal]
 973  *
 974  * Creates an ItemIDList from a path and returns it.
 975  *
 976  * PARAMS
 977  *  path         [I]   path to parse and convert into an ItemIDList
 978  *  lpFindFile   [I]   pointer to buffer to initialize the FileSystem
 979  *                     Bind Data object with
 980  *  bBindCtx     [I]   indicates to create a BindContext and assign a
 981  *                     FileSystem Bind Data object
 982  *  ppidl        [O]   the newly create ItemIDList
 983  *  prgfInOut    [I/O] requested attributes on input and actual
 984  *                     attributes on return
 985  *
 986  * RETURNS
 987  *  NO_ERROR on success or an OLE error code
 988  *
 989  * NOTES
 990  *  If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
 991  *  creates a BindContext object and assigns a FileSystem Bind Data object
 992  *  to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
 993  *  IShellFolder uses that FileSystem Bind Data object of the BindContext
 994  *  to pass data about the current path element to the next object. This
 995  *  is used to avoid having to verify the current path element on disk, so
 996  *  that creating an ItemIDList from a nonexistent path still can work.
 997  */
 998 static HRESULT WINAPI _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
 999                              BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
1000 {
1001     LPSHELLFOLDER pSF = NULL;
1002     LPBC pBC = NULL;
1003     HRESULT ret;
1004
1005     TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
1006                                              ppidl, ppidl ? *ppidl : NULL,
1007                                              prgfInOut, prgfInOut ? *prgfInOut : 0);
1008
1009     ret = SHGetDesktopFolder(&pSF);
1010     if (FAILED(ret))
1011         return ret;
1012
1013     if (lpFindFile || bBindCtx)
1014         ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
1015
1016     if (SUCCEEDED(ret))
1017     {
1018         ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
1019     }
1020
1021     if (pBC)
1022     {
1023         IBindCtx_Release(pBC);
1024         pBC = NULL;
1025     }
1026
1027     IShellFolder_Release(pSF);
1028
1029     if (!SUCCEEDED(ret) && ppidl)
1030         *ppidl = NULL;
1031
1032     TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
1033
1034     return ret;
1035 }
1036
1037 /*************************************************************************
1038  * SHSimpleIDListFromPath    [SHELL32.162]
1039  *
1040  * Creates a simple ItemIDList from a path and returns it. This function
1041  * does not fail on nonexistent paths.
1042  *
1043  * PARAMS
1044  *  path         [I]   path to parse and convert into an ItemIDList
1045  *
1046  * RETURNS
1047  *  the newly created simple ItemIDList
1048  *
1049  * NOTES
1050  *  Simple in the name does not mean a relative ItemIDList but rather a
1051  *  fully qualified list, where only the file name is filled in and the
1052  *  directory flag for those ItemID elements this is known about, eg.
1053  *  it is not the last element in the ItemIDList or the actual directory
1054  *  exists on disk.
1055  *  exported by ordinal.
1056  */
1057 LPITEMIDLIST WINAPI SHSimpleIDListFromPathA(LPCSTR lpszPath)
1058 {
1059     LPITEMIDLIST pidl = NULL;
1060     LPWSTR wPath = NULL;
1061     int len;
1062
1063     TRACE("%s\n", debugstr_a(lpszPath));
1064
1065     if (lpszPath)
1066     {
1067         len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
1068         wPath = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1069         MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
1070     }
1071
1072     _ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
1073
1074     HeapFree(GetProcessHeap(), 0, wPath);
1075     TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
1076     return pidl;
1077 }
1078
1079 LPITEMIDLIST WINAPI SHSimpleIDListFromPathW(LPCWSTR lpszPath)
1080 {
1081     LPITEMIDLIST pidl = NULL;
1082
1083     TRACE("%s\n", debugstr_w(lpszPath));
1084
1085     _ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
1086     TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
1087     return pidl;
1088 }
1089
1090 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
1091 {
1092     if ( SHELL_OsIsUnicode())
1093         return SHSimpleIDListFromPathW (lpszPath);
1094     return SHSimpleIDListFromPathA (lpszPath);
1095 }
1096
1097 /*************************************************************************
1098  * SHGetDataFromIDListA [SHELL32.247]
1099  *
1100  * NOTES
1101  *  the pidl can be a simple one. since we can't get the path out of the pidl
1102  *  we have to take all data from the pidl
1103  */
1104 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1105                                     int nFormat, LPVOID dest, int len)
1106 {
1107     LPSTR filename, shortname;
1108     WIN32_FIND_DATAA * pfd;
1109
1110     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1111
1112     pdump(pidl);
1113     if (!psf || !dest)
1114         return E_INVALIDARG;
1115
1116     switch (nFormat)
1117     {
1118     case SHGDFIL_FINDDATA:
1119         pfd = dest;
1120
1121         if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
1122             return E_INVALIDARG;
1123
1124         if (len < sizeof(WIN32_FIND_DATAA))
1125             return E_INVALIDARG;
1126
1127         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1128         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1129         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1130         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1131
1132         filename = _ILGetTextPointer(pidl);
1133         shortname = _ILGetSTextPointer(pidl);
1134
1135         if (filename)
1136             lstrcpynA(pfd->cFileName, filename, MAX_PATH);
1137         else
1138             pfd->cFileName[0] = '\0';
1139
1140         if (shortname)
1141             lstrcpynA(pfd->cAlternateFileName, shortname, MAX_PATH);
1142         else
1143             pfd->cAlternateFileName[0] = '\0';
1144         return NOERROR;
1145
1146     case SHGDFIL_NETRESOURCE:
1147     case SHGDFIL_DESCRIPTIONID:
1148         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1149         break;
1150
1151     default:
1152         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1153     }
1154
1155     return E_INVALIDARG;
1156 }
1157
1158 /*************************************************************************
1159  * SHGetDataFromIDListW [SHELL32.248]
1160  *
1161  */
1162 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
1163                                     int nFormat, LPVOID dest, int len)
1164 {
1165     LPSTR filename, shortname;
1166     WIN32_FIND_DATAW * pfd = dest;
1167
1168     TRACE_(shell)("sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
1169
1170     pdump(pidl);
1171
1172     if (!psf || !dest)
1173         return E_INVALIDARG;
1174
1175     switch (nFormat)
1176     {
1177     case SHGDFIL_FINDDATA:
1178         pfd = dest;
1179
1180         if (_ILIsDrive(pidl))
1181             return E_INVALIDARG;
1182
1183         if (len < sizeof(WIN32_FIND_DATAW))
1184             return E_INVALIDARG;
1185
1186         ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
1187         _ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
1188         pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
1189         pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
1190
1191         filename = _ILGetTextPointer(pidl);
1192         shortname = _ILGetSTextPointer(pidl);
1193
1194         if (!filename)
1195             pfd->cFileName[0] = '\0';
1196         else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
1197             pfd->cFileName[MAX_PATH-1] = 0;
1198
1199         if (!shortname)
1200             pfd->cAlternateFileName[0] = '\0';
1201         else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
1202             pfd->cAlternateFileName[13] = 0;
1203         return NOERROR;
1204
1205     case SHGDFIL_NETRESOURCE:
1206     case SHGDFIL_DESCRIPTIONID:
1207         FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
1208         break;
1209
1210     default:
1211         ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
1212     }
1213
1214     return E_INVALIDARG;
1215 }
1216
1217 /*************************************************************************
1218  * SHGetPathFromIDListA        [SHELL32.@][NT 4.0: SHELL32.220]
1219  *
1220  * PARAMETERS
1221  *  pidl,   [IN] pidl
1222  *  pszPath [OUT] path
1223  *
1224  * RETURNS
1225  *  path from a passed PIDL.
1226  *
1227  * NOTES
1228  *    NULL returns FALSE
1229  *    desktop pidl gives path to desktop directory back
1230  *    special pidls returning FALSE
1231  */
1232 BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
1233 {
1234     WCHAR wszPath[MAX_PATH];
1235     BOOL bSuccess;
1236
1237     bSuccess = SHGetPathFromIDListW(pidl, wszPath);
1238     WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
1239
1240     return bSuccess;
1241 }
1242
1243 /*************************************************************************
1244  * SHGetPathFromIDListW             [SHELL32.@]
1245  *
1246  * See SHGetPathFromIDListA.
1247  */
1248 BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
1249 {
1250     HRESULT hr;
1251     LPCITEMIDLIST pidlLast;
1252     LPSHELLFOLDER psfFolder;
1253     DWORD dwAttributes;
1254     STRRET strret;
1255
1256     TRACE_(shell)("(pidl=%p,%p)\n", pidl, pszPath);
1257     pdump(pidl);
1258
1259     *pszPath = '\0';
1260     if (!pidl)
1261         return FALSE;
1262
1263     hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
1264     if (FAILED(hr)) return FALSE;
1265
1266     dwAttributes = SFGAO_FILESYSTEM;
1267     hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
1268     if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
1269         IShellFolder_Release(psfFolder);
1270         return FALSE;
1271     }
1272
1273     hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
1274     IShellFolder_Release(psfFolder);
1275     if (FAILED(hr)) return FALSE;
1276
1277     hr = StrRetToBufW(&strret, pidlLast, pszPath, MAX_PATH);
1278
1279     TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(pszPath), hr);
1280     return SUCCEEDED(hr);
1281 }
1282
1283 /*************************************************************************
1284  *    SHBindToParent        [shell version 5.0]
1285  */
1286 HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
1287 {
1288     IShellFolder    * psfDesktop;
1289     HRESULT         hr=E_FAIL;
1290
1291     TRACE_(shell)("pidl=%p\n", pidl);
1292     pdump(pidl);
1293
1294     if (!pidl || !ppv)
1295         return E_INVALIDARG;
1296
1297     *ppv = NULL;
1298     if (ppidlLast)
1299         *ppidlLast = NULL;
1300
1301     hr = SHGetDesktopFolder(&psfDesktop);
1302     if (FAILED(hr))
1303         return hr;
1304
1305     if (_ILIsPidlSimple(pidl))
1306     {
1307         /* we are on desktop level */
1308         hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
1309     }
1310     else
1311     {
1312         LPITEMIDLIST pidlParent = ILClone(pidl);
1313         ILRemoveLastID(pidlParent);
1314         hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
1315         SHFree (pidlParent);
1316     }
1317
1318     IShellFolder_Release(psfDesktop);
1319
1320     if (SUCCEEDED(hr) && ppidlLast)
1321         *ppidlLast = ILFindLastID(pidl);
1322
1323     TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
1324     return hr;
1325 }
1326
1327 /**************************************************************************
1328  *
1329  *        internal functions
1330  *
1331  *    ### 1. section creating pidls ###
1332  *
1333  *************************************************************************
1334  */
1335 LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
1336 {
1337     LPITEMIDLIST pidlOut = NULL;
1338
1339     pidlOut = SHAlloc(size + 5);
1340     if(pidlOut)
1341     {
1342         LPPIDLDATA pData;
1343         LPITEMIDLIST pidlNext;
1344
1345         ZeroMemory(pidlOut, size + 5);
1346         pidlOut->mkid.cb = size + 3;
1347
1348         pData = _ILGetDataPointer(pidlOut);
1349         if (pData)
1350             pData->type = type;
1351
1352         pidlNext = ILGetNext(pidlOut);
1353         if (pidlNext)
1354             pidlNext->mkid.cb = 0x00;
1355         TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
1356     }
1357
1358     return pidlOut;
1359 }
1360
1361 LPITEMIDLIST _ILCreateDesktop()
1362 {
1363     LPITEMIDLIST ret;
1364
1365     TRACE("()\n");
1366     ret = SHAlloc(2);
1367     if (ret)
1368         ret->mkid.cb = 0;
1369     return ret;
1370 }
1371
1372 LPITEMIDLIST _ILCreateMyComputer()
1373 {
1374     TRACE("()\n");
1375     return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
1376 }
1377
1378 LPITEMIDLIST _ILCreateMyDocuments()
1379 {
1380     TRACE("()\n");
1381     return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
1382 }
1383
1384 LPITEMIDLIST _ILCreateIExplore()
1385 {
1386     TRACE("()\n");
1387     return _ILCreateGuid(PT_GUID, &CLSID_Internet);
1388 }
1389
1390 LPITEMIDLIST _ILCreateControlPanel()
1391 {
1392     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1393
1394     TRACE("()\n");
1395     if (parent)
1396     {
1397         LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
1398
1399         if (cpl)
1400         {
1401             ret = ILCombine(parent, cpl);
1402             SHFree(cpl);
1403         }
1404         SHFree(parent);
1405     }
1406     return ret;
1407 }
1408
1409 LPITEMIDLIST _ILCreatePrinters()
1410 {
1411     LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
1412
1413     TRACE("()\n");
1414     if (parent)
1415     {
1416         LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
1417
1418         if (printers)
1419         {
1420             ret = ILCombine(parent, printers);
1421             SHFree(printers);
1422         }
1423         SHFree(parent);
1424     }
1425     return ret;
1426 }
1427
1428 LPITEMIDLIST _ILCreateNetwork()
1429 {
1430     TRACE("()\n");
1431     return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
1432 }
1433
1434 LPITEMIDLIST _ILCreateBitBucket()
1435 {
1436     TRACE("()\n");
1437     return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
1438 }
1439
1440 LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
1441 {
1442     LPITEMIDLIST pidlOut;
1443
1444     if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
1445     {
1446         pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
1447         if (pidlOut)
1448         {
1449             LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
1450
1451             memcpy(&(pData->u.guid.guid), guid, sizeof(GUID));
1452             TRACE("-- create GUID-pidl %s\n",
1453                   debugstr_guid(&(pData->u.guid.guid)));
1454         }
1455     }
1456     else
1457     {
1458         WARN("%d: invalid type for GUID\n", type);
1459         pidlOut = NULL;
1460     }
1461     return pidlOut;
1462 }
1463
1464 LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
1465 {
1466     IID iid;
1467
1468     if (!SUCCEEDED(SHCLSIDFromStringA(szGUID, &iid)))
1469     {
1470         ERR("%s is not a GUID\n", szGUID);
1471         return NULL;
1472     }
1473     return _ILCreateGuid(PT_GUID, &iid);
1474 }
1475
1476 LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
1477 {
1478     IID iid;
1479
1480     if (!SUCCEEDED(SHCLSIDFromStringW(szGUID, &iid)))
1481     {
1482         ERR("%s is not a GUID\n", debugstr_w(szGUID));
1483         return NULL;
1484     }
1485     return _ILCreateGuid(PT_GUID, &iid);
1486 }
1487
1488 LPITEMIDLIST _ILCreateFromFindDataW( WIN32_FIND_DATAW *wfd )
1489 {
1490     /* FIXME: should make unicode PIDLs */
1491     WIN32_FIND_DATAA fda;
1492
1493     memset( &fda, 0, sizeof fda );
1494     fda.dwFileAttributes = wfd->dwFileAttributes;
1495     fda.ftCreationTime = wfd->ftCreationTime;
1496     fda.ftLastAccessTime = wfd->ftLastAccessTime;
1497     fda.ftLastWriteTime = wfd->ftLastWriteTime;
1498     fda.nFileSizeHigh = wfd->nFileSizeHigh;
1499     fda.nFileSizeLow = wfd->nFileSizeLow;
1500     fda.dwReserved0 = wfd->dwReserved0;
1501     fda.dwReserved1 = wfd->dwReserved1;
1502     WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1,
1503                          fda.cFileName, MAX_PATH, NULL, NULL );
1504     return _ILCreateFromFindDataA( &fda );
1505 }
1506
1507 LPITEMIDLIST _ILCreateFromFindDataA(WIN32_FIND_DATAA * stffile )
1508 {
1509     char    buff[MAX_PATH + 14 +1]; /* see WIN32_FIND_DATA */
1510     char *  pbuff = buff;
1511     size_t  len, len1;
1512     LPITEMIDLIST pidl;
1513     PIDLTYPE type;
1514
1515     if (!stffile)
1516         return NULL;
1517
1518     TRACE("(%s, %s)\n",stffile->cAlternateFileName, stffile->cFileName);
1519
1520     /* prepare buffer with both names */
1521     len = strlen (stffile->cFileName) + 1;
1522     memcpy (pbuff, stffile->cFileName, len);
1523     pbuff += len;
1524
1525     len1 = strlen (stffile->cAlternateFileName)+1;
1526     memcpy (pbuff, stffile->cAlternateFileName, len1);
1527
1528     type = (stffile->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
1529
1530     /*
1531      * FileStruct already has one byte for the first name, so use len - 1 in
1532      * size calculation
1533      */
1534     pidl = _ILAlloc(type, sizeof(FileStruct) + (len - 1) + len1);
1535     if (pidl)
1536     {
1537         LPPIDLDATA pData;
1538         LPSTR pszDest;
1539
1540         /* set attributes */
1541         pData = _ILGetDataPointer(pidl);
1542         if (pData)
1543         {
1544             pData->type = type;
1545             FileTimeToDosDateTime( &(stffile->ftLastWriteTime),
1546                           &pData->u.file.uFileDate, &pData->u.file.uFileTime);
1547             pData->u.file.dwFileSize = stffile->nFileSizeLow;
1548             pData->u.file.uFileAttribs = (WORD)stffile->dwFileAttributes;
1549         }
1550         pszDest = _ILGetTextPointer(pidl);
1551         if (pszDest)
1552         {
1553             memcpy(pszDest, buff, len + len1);
1554             TRACE("-- create Value: %s\n",debugstr_a(pszDest));
1555         }
1556     }
1557     return pidl;
1558 }
1559
1560 HRESULT _ILCreateFromPathA(LPCSTR szPath, LPITEMIDLIST* ppidl)
1561 {
1562     HANDLE hFile;
1563     WIN32_FIND_DATAA stffile;
1564
1565     if (!ppidl)
1566         return E_INVALIDARG;
1567
1568     hFile = FindFirstFileA(szPath, &stffile);
1569     if (hFile == INVALID_HANDLE_VALUE)
1570         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1571
1572     FindClose(hFile);
1573
1574     *ppidl = _ILCreateFromFindDataA(&stffile);
1575
1576     return *ppidl ? S_OK : E_OUTOFMEMORY;
1577 }
1578
1579 HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
1580 {
1581     HANDLE hFile;
1582     WIN32_FIND_DATAW stffile;
1583
1584     if (!ppidl)
1585         return E_INVALIDARG;
1586
1587     hFile = FindFirstFileW(szPath, &stffile);
1588     if (hFile == INVALID_HANDLE_VALUE)
1589         return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
1590
1591     FindClose(hFile);
1592
1593     *ppidl = _ILCreateFromFindDataW(&stffile);
1594
1595     return *ppidl ? S_OK : E_OUTOFMEMORY;
1596 }
1597
1598 LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
1599 {
1600     LPITEMIDLIST pidlOut;
1601
1602     TRACE("(%s)\n",debugstr_w(lpszNew));
1603
1604     pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
1605     if (pidlOut)
1606     {
1607         LPSTR pszDest;
1608
1609         pszDest = _ILGetTextPointer(pidlOut);
1610         if (pszDest)
1611         {
1612             strcpy(pszDest, "x:\\");
1613             pszDest[0]=toupperW(lpszNew[0]);
1614             TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
1615         }
1616     }
1617     return pidlOut;
1618 }
1619
1620 /**************************************************************************
1621  *  _ILGetDrive()
1622  *
1623  *  Gets the text for the drive eg. 'c:\'
1624  *
1625  * RETURNS
1626  *  strlen (lpszText)
1627  */
1628 DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
1629 {
1630     TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
1631
1632     if(_ILIsMyComputer(pidl))
1633         pidl = ILGetNext(pidl);
1634
1635     if (pidl && _ILIsDrive(pidl))
1636         return _ILSimpleGetText(pidl, pOut, uSize);
1637
1638     return 0;
1639 }
1640
1641 /**************************************************************************
1642  *
1643  *    ### 2. section testing pidls ###
1644  *
1645  **************************************************************************
1646  *  _ILIsDesktop()
1647  *  _ILIsMyComputer()
1648  *  _ILIsSpecialFolder()
1649  *  _ILIsDrive()
1650  *  _ILIsFolder()
1651  *  _ILIsValue()
1652  *  _ILIsPidlSimple()
1653  */
1654 BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
1655 {
1656     TRACE("(%p)\n",pidl);
1657
1658     return pidl && pidl->mkid.cb  ? 0 : 1;
1659 }
1660
1661 BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
1662 {
1663     REFIID iid = _ILGetGUIDPointer(pidl);
1664
1665     TRACE("(%p)\n",pidl);
1666
1667     if (iid)
1668         return IsEqualIID(iid, &CLSID_MyComputer);
1669     return FALSE;
1670 }
1671
1672 BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
1673 {
1674     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1675
1676     TRACE("(%p)\n",pidl);
1677
1678     return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
1679               (pidl && pidl->mkid.cb == 0x00)
1680             ));
1681 }
1682
1683 BOOL _ILIsDrive(LPCITEMIDLIST pidl)
1684 {
1685     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1686
1687     TRACE("(%p)\n",pidl);
1688
1689     return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
1690                     PT_DRIVE1 == lpPData->type ||
1691                     PT_DRIVE2 == lpPData->type ||
1692                     PT_DRIVE3 == lpPData->type));
1693 }
1694
1695 BOOL _ILIsFolder(LPCITEMIDLIST pidl)
1696 {
1697     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1698
1699     TRACE("(%p)\n",pidl);
1700
1701     return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
1702 }
1703
1704 BOOL _ILIsValue(LPCITEMIDLIST pidl)
1705 {
1706     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1707
1708     TRACE("(%p)\n",pidl);
1709
1710     return (pidl && lpPData && PT_VALUE == lpPData->type);
1711 }
1712
1713 BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
1714 {
1715     LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
1716
1717     TRACE("(%p)\n",pidl);
1718
1719     return (pidl && lpPData && (lpPData->type == 0));
1720 }
1721
1722 /**************************************************************************
1723  *    _ILIsPidlSimple
1724  */
1725 BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
1726 {
1727     BOOL ret = TRUE;
1728
1729     if(! _ILIsDesktop(pidl))    /* pidl=NULL or mkid.cb=0 */
1730     {
1731         WORD len = pidl->mkid.cb;
1732         LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
1733
1734         if (pidlnext->mkid.cb)
1735             ret = FALSE;
1736     }
1737
1738     TRACE("%s\n", ret ? "Yes" : "No");
1739     return ret;
1740 }
1741
1742 /**************************************************************************
1743  *
1744  *    ### 3. section getting values from pidls ###
1745  */
1746
1747  /**************************************************************************
1748  *  _ILSimpleGetText
1749  *
1750  * gets the text for the first item in the pidl (eg. simple pidl)
1751  *
1752  * returns the length of the string
1753  */
1754 DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
1755 {
1756     DWORD        dwReturn=0;
1757     LPSTR        szSrc;
1758     GUID const * riid;
1759     char szTemp[MAX_PATH];
1760
1761     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1762
1763     if (!pidl)
1764         return 0;
1765
1766     if (szOut)
1767         *szOut = 0;
1768
1769     if (_ILIsDesktop(pidl))
1770     {
1771         /* desktop */
1772         if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
1773         {
1774             if (szOut)
1775                 lstrcpynA(szOut, szTemp, uOutSize);
1776
1777             dwReturn = strlen (szTemp);
1778         }
1779     }
1780     else if (( szSrc = _ILGetTextPointer(pidl) ))
1781     {
1782         /* filesystem */
1783         if (szOut)
1784             lstrcpynA(szOut, szSrc, uOutSize);
1785
1786         dwReturn = strlen(szSrc);
1787     }
1788     else if (( riid = _ILGetGUIDPointer(pidl) ))
1789     {
1790         /* special folder */
1791         if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
1792         {
1793             if (szOut)
1794                 lstrcpynA(szOut, szTemp, uOutSize);
1795
1796             dwReturn = strlen (szTemp);
1797         }
1798     }
1799     else
1800     {
1801         ERR("-- no text\n");
1802     }
1803
1804     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
1805     return dwReturn;
1806 }
1807
1808  /**************************************************************************
1809  *  _ILSimpleGetTextW
1810  *
1811  * gets the text for the first item in the pidl (eg. simple pidl)
1812  *
1813  * returns the length of the string
1814  */
1815 DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
1816 {
1817     DWORD   dwReturn;
1818     char    szTemp[MAX_PATH];
1819     FileStructW *pFileStructW = _ILGetFileStructW(pidl);
1820
1821     TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
1822
1823     if (pFileStructW) {
1824         lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
1825         dwReturn = lstrlenW(pFileStructW->wszName);
1826     } else {
1827         dwReturn = _ILSimpleGetText(pidl, szTemp, MAX_PATH);
1828
1829         if (!MultiByteToWideChar(CP_ACP, 0, szTemp, -1, szOut, uOutSize))
1830             *szOut = 0;
1831     }
1832
1833     TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
1834     return dwReturn;
1835 }
1836
1837 /**************************************************************************
1838  *
1839  *    ### 4. getting pointers to parts of pidls ###
1840  *
1841  **************************************************************************
1842  *  _ILGetDataPointer()
1843  */
1844 LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
1845 {
1846     if(pidl && pidl->mkid.cb != 0x00)
1847         return (LPPIDLDATA) &(pidl->mkid.abID);
1848     return NULL;
1849 }
1850
1851 /**************************************************************************
1852  *  _ILGetTextPointer()
1853  * gets a pointer to the long filename string stored in the pidl
1854  */
1855 LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
1856 {
1857     /* TRACE(pidl,"(pidl%p)\n", pidl);*/
1858
1859     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
1860
1861     if (!pdata)
1862         return NULL;
1863
1864     switch (pdata->type)
1865     {
1866     case PT_GUID:
1867     case PT_SHELLEXT:
1868     case PT_YAGUID:
1869         return NULL;
1870
1871     case PT_DRIVE:
1872     case PT_DRIVE1:
1873     case PT_DRIVE2:
1874     case PT_DRIVE3:
1875         return (LPSTR)&(pdata->u.drive.szDriveName);
1876
1877     case PT_FOLDER:
1878     case PT_FOLDER1:
1879     case PT_VALUE:
1880     case PT_IESPECIAL1:
1881     case PT_IESPECIAL2:
1882         return (LPSTR)&(pdata->u.file.szNames);
1883
1884     case PT_WORKGRP:
1885     case PT_COMP:
1886     case PT_NETWORK:
1887     case PT_NETPROVIDER:
1888     case PT_SHARE:
1889         return (LPSTR)&(pdata->u.network.szNames);
1890     }
1891     return NULL;
1892 }
1893
1894 /**************************************************************************
1895  *  _ILGetSTextPointer()
1896  * gets a pointer to the short filename string stored in the pidl
1897  */
1898 LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
1899 {
1900     /* TRACE(pidl,"(pidl%p)\n", pidl); */
1901
1902     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1903
1904     if (!pdata)
1905         return NULL;
1906
1907     switch (pdata->type)
1908     {
1909     case PT_FOLDER:
1910     case PT_VALUE:
1911     case PT_IESPECIAL1:
1912     case PT_IESPECIAL2:
1913         return (LPSTR)(pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1);
1914
1915     case PT_WORKGRP:
1916         return (LPSTR)(pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1);
1917     }
1918     return NULL;
1919 }
1920
1921 /**************************************************************************
1922  * _ILGetGUIDPointer()
1923  *
1924  * returns reference to guid stored in some pidls
1925  */
1926 IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
1927 {
1928     LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1929
1930     TRACE("%p\n", pidl);
1931
1932     if (!pdata)
1933         return NULL;
1934
1935     TRACE("pdata->type 0x%04x\n", pdata->type);
1936     switch (pdata->type)
1937     {
1938     case PT_SHELLEXT:
1939     case PT_GUID:
1940     case PT_YAGUID:
1941         return &(pdata->u.guid.guid);
1942
1943     default:
1944         TRACE("Unknown pidl type 0x%04x\n", pdata->type);
1945         break;
1946     }
1947     return NULL;
1948 }
1949
1950 /******************************************************************************
1951  * _ILGetFileStructW [Internal]
1952  *
1953  * Get pointer the a SHITEMID's FileStructW field if present
1954  *
1955  * PARAMS
1956  *  pidl [I] The SHITEMID
1957  *
1958  * RETURNS
1959  *  Success: Pointer to pidl's FileStructW field.
1960  *  Failure: NULL
1961  */
1962 FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
1963     FileStructW *pFileStructW;
1964     WORD cbOffset;
1965
1966     if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
1967         return NULL;
1968
1969     cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
1970     pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
1971
1972     /* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
1973      * style with a FileStructW member. If we switch all our shellfolder-implementations to
1974      * the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
1975     if (cbOffset & 0x1 || /* FileStructW member is word aligned in the pidl */
1976         /* FileStructW is positioned after FileStruct */
1977         cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
1978         /* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
1979         cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
1980         pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
1981     {
1982         WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
1983         return NULL;
1984     }
1985
1986     return pFileStructW;
1987 }
1988
1989 /*************************************************************************
1990  * _ILGetFileDateTime
1991  *
1992  * Given the ItemIdList, get the FileTime
1993  *
1994  * PARAMS
1995  *      pidl        [I] The ItemIDList
1996  *      pFt         [I] the resulted FILETIME of the file
1997  *
1998  * RETURNS
1999  *     True if Successful
2000  *
2001  * NOTES
2002  *
2003  */
2004 BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
2005 {
2006     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2007
2008     if (!pdata)
2009         return FALSE;
2010
2011     switch (pdata->type)
2012     {
2013     case PT_FOLDER:
2014     case PT_VALUE:
2015         DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
2016         break;
2017     default:
2018         return FALSE;
2019     }
2020     return TRUE;
2021 }
2022
2023 BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2024 {
2025     FILETIME ft,lft;
2026     SYSTEMTIME time;
2027     BOOL ret;
2028
2029     if (_ILGetFileDateTime( pidl, &ft ))
2030     {
2031         FileTimeToLocalFileTime(&ft, &lft);
2032         FileTimeToSystemTime (&lft, &time);
2033
2034         ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
2035         if (ret)
2036         {
2037             /* Append space + time without seconds */
2038             pOut[ret-1] = ' ';
2039             GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
2040         }
2041     }
2042     else
2043     {
2044         pOut[0] = '\0';
2045         ret = FALSE;
2046     }
2047     return ret;
2048 }
2049
2050 /*************************************************************************
2051  * _ILGetFileSize
2052  *
2053  * Given the ItemIdList, get the FileSize
2054  *
2055  * PARAMS
2056  *    pidl     [I] The ItemIDList
2057  *    pOut     [I] The buffer to save the result
2058  *    uOutsize [I] The size of the buffer
2059  *
2060  * RETURNS
2061  *    The FileSize
2062  *
2063  * NOTES
2064  *    pOut can be null when no string is needed
2065  *
2066  */
2067 DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2068 {
2069     LPPIDLDATA pdata = _ILGetDataPointer(pidl);
2070     DWORD dwSize;
2071
2072     if (!pdata)
2073         return 0;
2074
2075     switch (pdata->type)
2076     {
2077     case PT_VALUE:
2078         dwSize = pdata->u.file.dwFileSize;
2079         if (pOut)
2080             StrFormatKBSizeA(dwSize, pOut, uOutSize);
2081         return dwSize;
2082     }
2083     if (pOut)
2084         *pOut = 0x00;
2085     return 0;
2086 }
2087
2088 BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2089 {
2090     char szTemp[MAX_PATH];
2091     const char * pPoint;
2092     LPCITEMIDLIST  pidlTemp=pidl;
2093
2094     TRACE("pidl=%p\n",pidl);
2095
2096     if (!pidl)
2097         return FALSE;
2098
2099     pidlTemp = ILFindLastID(pidl);
2100
2101     if (!_ILIsValue(pidlTemp))
2102         return FALSE;
2103     if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
2104         return FALSE;
2105
2106     pPoint = PathFindExtensionA(szTemp);
2107
2108     if (!*pPoint)
2109         return FALSE;
2110
2111     pPoint++;
2112     lstrcpynA(pOut, pPoint, uOutSize);
2113     TRACE("%s\n",pOut);
2114
2115     return TRUE;
2116 }
2117
2118 /*************************************************************************
2119  * _ILGetFileType
2120  *
2121  * Given the ItemIdList, get the file type description
2122  *
2123  * PARAMS
2124  *      pidl        [I] The ItemIDList (simple)
2125  *      pOut        [I] The buffer to save the result
2126  *      uOutsize    [I] The size of the buffer
2127  *
2128  * RETURNS
2129  *    nothing
2130  *
2131  * NOTES
2132  *    This function copies as much as possible into the buffer.
2133  */
2134 void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2135 {
2136     if(_ILIsValue(pidl))
2137     {
2138         char sTemp[64];
2139
2140         if(uOutSize > 0)
2141             pOut[0] = 0;
2142         if (_ILGetExtension (pidl, sTemp, 64))
2143         {
2144             if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
2145                 && HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE )))
2146             {
2147                 lstrcpynA (pOut, sTemp, uOutSize - 6);
2148                 strcat (pOut, "-file");
2149             }
2150         }
2151     }
2152     else
2153         lstrcpynA(pOut, "Folder", uOutSize);
2154 }
2155
2156 /*************************************************************************
2157  * _ILGetFileAttributes
2158  *
2159  * Given the ItemIdList, get the Attrib string format
2160  *
2161  * PARAMS
2162  *      pidl        [I] The ItemIDList
2163  *      pOut        [I] The buffer to save the result
2164  *      uOutsize    [I] The size of the Buffer
2165  *
2166  * RETURNS
2167  *     Attributes
2168  *
2169  * FIXME
2170  *  return value 0 in case of error is a valid return value
2171  *
2172  */
2173 DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
2174 {
2175     LPPIDLDATA pData = _ILGetDataPointer(pidl);
2176     WORD wAttrib = 0;
2177     int i;
2178
2179     if (!pData)
2180         return 0;
2181
2182     switch(pData->type)
2183     {
2184     case PT_FOLDER:
2185     case PT_VALUE:
2186         wAttrib = pData->u.file.uFileAttribs;
2187         break;
2188     }
2189
2190     if(uOutSize >= 6)
2191     {
2192         i=0;
2193         if(wAttrib & FILE_ATTRIBUTE_READONLY)
2194             pOut[i++] = 'R';
2195         if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
2196             pOut[i++] = 'H';
2197         if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
2198             pOut[i++] = 'S';
2199         if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
2200             pOut[i++] = 'A';
2201         if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
2202             pOut[i++] = 'C';
2203         pOut[i] = 0x00;
2204     }
2205     return wAttrib;
2206 }
2207
2208 /*************************************************************************
2209  * ILFreeaPidl
2210  *
2211  * free a aPidl struct
2212  */
2213 void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
2214 {
2215     UINT   i;
2216
2217     if (apidl)
2218     {
2219         for (i = 0; i < cidl; i++)
2220             SHFree(apidl[i]);
2221         SHFree(apidl);
2222     }
2223 }
2224
2225 /*************************************************************************
2226  * ILCopyaPidl
2227  *
2228  * copies an aPidl struct
2229  */
2230 LPITEMIDLIST* _ILCopyaPidl(LPCITEMIDLIST * apidlsrc, UINT cidl)
2231 {
2232     UINT i;
2233     LPITEMIDLIST *apidldest;
2234
2235     apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
2236     if (!apidlsrc)
2237         return NULL;
2238
2239     for (i = 0; i < cidl; i++)
2240         apidldest[i] = ILClone(apidlsrc[i]);
2241
2242     return apidldest;
2243 }
2244
2245 /*************************************************************************
2246  * _ILCopyCidaToaPidl
2247  *
2248  * creates aPidl from CIDA
2249  */
2250 LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, LPIDA cida)
2251 {
2252     UINT i;
2253     LPITEMIDLIST *dst;
2254
2255     dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
2256     if (!dst)
2257         return NULL;
2258
2259     if (pidl)
2260         *pidl = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[0]]));
2261
2262     for (i = 0; i < cida->cidl; i++)
2263         dst[i] = ILClone((LPITEMIDLIST)(&((LPBYTE)cida)[cida->aoffset[i + 1]]));
2264
2265     return dst;
2266 }