git.oblomov.eu Git - wine/blob - dlls/shell32/shfldr_unixfs.c

   1 /*
   2  * UNIXFS - Shell namespace extension for the unix filesystem
   3  *
   4  * Copyright (C) 2005 Michael Jung
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include <stdio.h>
  23 #include <stdarg.h>
  24 #include <limits.h>
  25 #include <dirent.h>
  26 #ifdef HAVE_SYS_STAT_H
  27 # include <sys/stat.h>
  28 #endif
  29 #ifdef HAVE_PWD_H
  30 # include <pwd.h>
  31 #endif
  32 #include <grp.h>
  33
  34 #define COBJMACROS
  35 #define NONAMELESSUNION
  36 #define NONAMELESSSTRUCT
  37
  38 #include "windef.h"
  39 #include "winbase.h"
  40 #include "winuser.h"
  41 #include "objbase.h"
  42 #include "winreg.h"
  43 #include "winternl.h"
  44 #include "wine/debug.h"
  45
  46 #include "shell32_main.h"
  47 #include "shfldr.h"
  48 #include "shresdef.h"
  49 #include "pidl.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  52
  53 const GUID CLSID_UnixFolder = {0xcc702eb2, 0x7dc5, 0x11d9, {0xc6, 0x87, 0x00, 0x04, 0x23, 0x8a, 0x01, 0xcd}};
  54
  55 #define ADJUST_THIS(c,m,p) ((c*)(((long)p)-(long)&(((c*)0)->lp##m##Vtbl)))
  56 #define STATIC_CAST(i,p) ((i*)&p->lp##i##Vtbl)
  57
  58 /* FileStruct reserves one byte for szNames, thus we don't have to
  59  * alloc a byte for the terminating '\0' of 'name'. Two of the
  60  * additional bytes are for SHITEMID's cb field. One is for IDLDATA's
  61  * type field. One is for FileStruct's szNames field, to terminate
  62  * the alternate DOS name, which we don't use here. And then there's
  63  * the additional StatStruct.
  64  */
  65 #define SHITEMID_LEN_FROM_NAME_LEN(n) \
  66     (sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
  67 #define NAME_LEN_FROM_LPSHITEMID(s) \
  68     (((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
  69 #define LPSTATSTRUCT_FROM_LPSHITEMID(s) ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct)))
  70
  71 /* This structure is appended to shell32's FileStruct type in IDLs to store unix
  72  * filesystem specific informationen extracted with the stat system call.
  73  */
  74 typedef struct tagStatStruct {
  75     mode_t st_mode;
  76     uid_t  st_uid;
  77     gid_t  st_gid;
  78 } StatStruct;
  79
  80 /******************************************************************************
  81  * UNIXFS_is_pidl_of_type [INTERNAL]
  82  *
  83  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
  84  *
  85  * PARAMS
  86  *  pIDL    [I] The ITEMIDLIST to be checked.
  87  *  fFilter [I] Shell condition flags, which specify the filter.
  88  *
  89  * RETURNS
  90  *  TRUE, if pIDL is accepted by fFilter
  91  *  FALSE, otherwise
  92  */
  93 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
  94     LPSTR pszText = _ILGetTextPointer(pIDL);
  95     if (!pszText) return FALSE;
  96     if (pszText[0] == '.' && !(fFilter & SHCONTF_INCLUDEHIDDEN)) return FALSE;
  97     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
  98     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
  99     return FALSE;
 100 }
 101
 102 /******************************************************************************
 103  * UNIXFS_build_shitemid [Internal]
 104  *
 105  * Constructs a new SHITEMID for a single path item (up to the next '/' or
 106  * '\0') into a buffer. Decorates the SHITEMID with information from a stat
 107  * system call.
 108  *
 109  * PARAMS
 110  *  name   [I] The name of the next path item. Terminated by either '\0' or '/'.
 111  *  pStat  [I] A stat struct variable obtained by a stat system call on the file.
 112  *  buffer [O] SHITEMID will be constructed here.
 113  *
 114  * RETURNS
 115  *  A pointer to the next '/' or '\0' character in name.
 116  *
 117  * NOTES
 118  *  Minimum size of buffer is SHITEMID_LEN_FROM_NAME_LEN(strlen(name)).
 119  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 120  *  a 0 USHORT value.
 121  */
 122 static char* UNIXFS_build_shitemid(char *name, struct stat *pStat, void *buffer) {
 123     LARGE_INTEGER time;
 124     FILETIME fileTime;
 125     LPPIDLDATA pIDLData;
 126     StatStruct *pStatStruct;
 127     int cNameLen;
 128     char *pSlash;
 129
 130     TRACE("(name=%s, buffer=%p)\n", debugstr_a(name), buffer);
 131
 132     pSlash = strchr(name, '/');
 133     cNameLen = pSlash ? pSlash - name : strlen(name);
 134
 135     memset(buffer, 0, SHITEMID_LEN_FROM_NAME_LEN(cNameLen));
 136     ((LPSHITEMID)buffer)->cb = SHITEMID_LEN_FROM_NAME_LEN(cNameLen) ;
 137
 138     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)buffer);
 139     pIDLData->type = S_ISDIR(pStat->st_mode) ? PT_FOLDER : PT_VALUE;
 140     pIDLData->u.file.dwFileSize = (DWORD)pStat->st_size;
 141     RtlSecondsSince1970ToTime( pStat->st_mtime, &time );
 142     fileTime.dwLowDateTime = time.u.LowPart;
 143     fileTime.dwHighDateTime = time.u.HighPart;
 144     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 145     pIDLData->u.file.uFileAttribs = 0;
 146     memcpy(pIDLData->u.file.szNames, name, cNameLen);
 147
 148     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(buffer);
 149     pStatStruct->st_mode = pStat->st_mode;
 150     pStatStruct->st_uid = pStat->st_uid;
 151     pStatStruct->st_gid = pStat->st_gid;
 152
 153     return pSlash ? pSlash+1 : (name + cNameLen);
 154 }
 155
 156 /******************************************************************************
 157  * UNIXFS_path_to_pidl [Internal]
 158  *
 159  * PARAMS
 160  *  path  [I] An absolute unix path
 161  *  ppidl [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 162  *
 163  * RETURNS
 164  *  Success: TRUE
 165  *  Failure: FALSE, invalid params, path not absolute or out of memory
 166  *
 167  * NOTES
 168  *  'path' has to be an absolute unix filesystem path starting and
 169  *  ending with a slash ('/'). Currently, only directories (no files)
 170  *  are accepted.
 171  */
 172 static BOOL UNIXFS_path_to_pidl(char *path, LPITEMIDLIST *ppidl) {
 173     LPITEMIDLIST pidl;
 174     struct stat fileStat;
 175     int cSubDirs, cPidlLen, res;
 176     char *pSlash;
 177
 178     TRACE("path=%s, ppidl=%p", debugstr_a(path), ppidl);
 179
 180     /* Fail, if no absolute path given */
 181     if (!ppidl || !path || path[0] != '/') return FALSE;
 182
 183     /* Skip the '/' prefix */
 184     path++;
 185
 186     /* Count the number of sub-directories in the path */
 187     cSubDirs = 0;
 188     pSlash = strchr(path, '/');
 189     while (pSlash) {
 190         cSubDirs++;
 191         pSlash = strchr(pSlash+1, '/');
 192     }
 193
 194     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 195      * characters, which are not stored in the ITEMIDLIST. */
 196     cPidlLen = strlen(path) - cSubDirs + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 197     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 198     if (!pidl) return FALSE;
 199
 200     /* Concatenate the SHITEMIDs of the sub-directories. */
 201     while (*path) {
 202         pSlash = strchr(path, '/');
 203         if (pSlash) {
 204             *pSlash = '\0';
 205             res = stat(path, &fileStat);
 206             *pSlash = '/';
 207             if (res) return FALSE;
 208         } else {
 209             if (stat(path, &fileStat)) return FALSE;
 210         }
 211
 212         path = UNIXFS_build_shitemid(path, &fileStat, pidl);
 213         pidl = ILGetNext(pidl);
 214     }
 215     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 216
 217     return TRUE;
 218 }
 219
 220 /******************************************************************************
 221  * UNIXFS_pidl_to_path [Internal]
 222  *
 223  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 224  *
 225  * PARAMS
 226  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 227  *  path [O] The corresponding unix path as a zero terminated ascii string
 228  *
 229  * RETURNS
 230  *  Success: TRUE
 231  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 232  */
 233 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, PSZ *path) {
 234     LPCITEMIDLIST current = pidl, root;
 235     DWORD dwPathLen;
 236     char *pNextDir;
 237
 238     TRACE("(pidl=%p, path=%p)\n", pidl, path);
 239
 240     *path = NULL;
 241
 242     /* Find the UnixFolderClass root */
 243     while (current->mkid.cb) {
 244         LPPIDLDATA pData = _ILGetDataPointer(current);
 245         if (!pData) return FALSE;
 246         if (pData->type == PT_GUID && IsEqualIID(&CLSID_UnixFolder, &pData->u.guid.guid)) break;
 247         current = ILGetNext(current);
 248     }
 249     root = current = ILGetNext(current);
 250
 251     /* Determine the path's length bytes */
 252     dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 253     while (current->mkid.cb) {
 254         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 255         current = ILGetNext(current);
 256     };
 257
 258     /* Build the path */
 259     *path = pNextDir = SHAlloc(dwPathLen);
 260     if (!path) {
 261         WARN("SHAlloc failed!\n");
 262         return FALSE;
 263     }
 264     current = root;
 265     *pNextDir++ = '/';
 266     while (current->mkid.cb) {
 267         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 268         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 269         *pNextDir++ = '/';
 270         current = ILGetNext(current);
 271     }
 272     *pNextDir='\0';
 273
 274     TRACE("resulting path: %s\n", *path);
 275     return TRUE;
 276 }
 277
 278 /******************************************************************************
 279  * UNIXFS_build_subfolder_pidls [Internal]
 280  *
 281  * Builds an array of subfolder PIDLs relative to a unix directory
 282  *
 283  * PARAMS
 284  *  path   [I] Name of a unix directory as a zero terminated ascii string
 285  *  apidl  [O] The array of PIDLs
 286  *  pCount [O] Size of apidl
 287  *
 288  * RETURNS
 289  *  Success: TRUE
 290  *  Failure: FALSE, path is not a valid unix directory or out of memory
 291  *
 292  * NOTES
 293  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 294  *  to release each PIDL as well as the array itself with SHFree.
 295  */
 296 static BOOL UNIXFS_build_subfolder_pidls(const char *path, LPITEMIDLIST **apidl, DWORD *pCount)
 297 {
 298     struct dirent *pDirEntry;
 299     struct stat fileStat;
 300     DIR *dir;
 301     DWORD cDirEntries, i;
 302     USHORT sLen;
 303     char *pszFQPath;
 304
 305     TRACE("(path=%s, apidl=%p, pCount=%p)\n", debugstr_a(path), apidl, pCount);
 306
 307     *apidl = NULL;
 308     *pCount = 0;
 309
 310     dir = opendir(path);
 311     if (!dir) {
 312         WARN("Failed to open directory '%s'.\n", path);
 313         return FALSE;
 314     }
 315
 316     /* Allocate space for fully qualified paths */
 317     pszFQPath = SHAlloc(strlen(path) + NAME_MAX);
 318     if (!pszFQPath) {
 319         WARN("SHAlloc failed!\n");
 320         return FALSE;
 321     }
 322
 323     /* Count number of directory entries. */
 324     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 325         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 326         sprintf(pszFQPath, "%s%s", path, pDirEntry->d_name);
 327         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 328     }
 329
 330     /* If there are no entries, we are done. */
 331     if (cDirEntries == 0) {
 332         closedir(dir);
 333         SHFree(pszFQPath);
 334         return TRUE;
 335     }
 336
 337     /* Allocate the array of PIDLs */
 338     *apidl = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 339     if (!apidl) {
 340         WARN("SHAlloc failed!\n");
 341         return FALSE;
 342     }
 343
 344     /* Allocate and initialize one SHITEMID per sub-directory. */
 345     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 346         LPSHITEMID pid;
 347
 348         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 349
 350         sprintf(pszFQPath, "%s%s", path, pDirEntry->d_name);
 351         if (stat(pszFQPath, &fileStat)) continue;
 352         if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) continue;
 353
 354         sLen = strlen(pDirEntry->d_name);
 355         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 356         if (!pid) {
 357             WARN("SHAlloc failed!\n");
 358             return FALSE;
 359         }
 360         UNIXFS_build_shitemid(pDirEntry->d_name, &fileStat, pid);
 361         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 362
 363         (*apidl)[i++] = (LPITEMIDLIST)pid;
 364     }
 365
 366     *pCount = i;
 367     closedir(dir);
 368     SHFree(pszFQPath);
 369
 370     return TRUE;
 371 }
 372
 373 /******************************************************************************
 374  * UnixFolderIcon
 375  *
 376  * Singleton class, which is used by the shell to extract icons to represent
 377  * folders in tree- and listviews. Currently, all this singleton does is to
 378  * provide the shell with the absolute path to "shell32.dll" and with the
 379  * indices of the closed and opened folder icons in the resources of this dll.
 380  */
 381
 382 /* UnixFolderIcon object layout and typedef.
 383  */
 384 typedef struct _UnixFolderIcon {
 385     const IExtractIconWVtbl *lpIExtractIconWVtbl;
 386     BOOL bFolder;
 387 } UnixFolderIcon;
 388
 389 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_QueryInterface(IExtractIconW *iface, REFIID riid,
 390     void **ppv)
 391 {
 392     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 393
 394     if (!ppv) return E_INVALIDARG;
 395
 396     if (IsEqualIID(&IID_IUnknown, riid) ||
 397         IsEqualIID(&IID_IExtractIconW, riid))
 398     {
 399         *ppv = iface;
 400     } else {
 401         *ppv = NULL;
 402         return E_NOINTERFACE;
 403     }
 404
 405     IExtractIconW_AddRef(iface);
 406     return S_OK;
 407 }
 408
 409 static ULONG WINAPI UnixFolderIcon_IExtractIconW_AddRef(IExtractIconW *iface) {
 410     TRACE("(iface=%p)\n", iface);
 411     return 2;
 412 }
 413
 414 static ULONG WINAPI UnixFolderIcon_IExtractIconW_Release(IExtractIconW *iface) {
 415     TRACE("(iface=%p)\n", iface);
 416     return 1;
 417 }
 418
 419 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_GetIconLocation(IExtractIconW *iface,
 420     UINT uFlags, LPWSTR szIconFile, UINT cchMax, INT* piIndex, UINT* pwFlags)
 421 {
 422     UnixFolderIcon *This = ADJUST_THIS(UnixFolderIcon, IExtractIconW, iface);
 423
 424     TRACE("(iface=%p, uFlags=%u, szIconFile=%s, cchMax=%u, piIndex=%p, pwFlags=%p)\n",
 425             iface, uFlags, debugstr_w(szIconFile), cchMax, piIndex, pwFlags);
 426
 427     lstrcpynW(szIconFile, swShell32Name, cchMax);
 428     if (This->bFolder) {
 429         *piIndex = (uFlags & GIL_OPENICON) ? -IDI_SHELL_FOLDER_OPEN : -IDI_SHELL_FOLDER;
 430     } else {
 431         *piIndex = -IDI_SHELL_DOCUMENT;
 432     }
 433     *pwFlags = 0;
 434
 435     return S_OK;
 436 }
 437
 438 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_Extract(
 439     IExtractIconW *iface, LPCWSTR pszFile, UINT nIconIndex, HICON* phiconLarge, HICON* phiconSmall,
 440     UINT nIconSize)
 441 {
 442     TRACE("(iface=%p, pszFile=%s, nIconIndex=%u, phiconLarge=%p, phiconSmall=%p, nIconSize=%u)"
 443           "stub\n", iface, debugstr_w(pszFile), nIconIndex, phiconLarge, phiconSmall, nIconSize);
 444
 445     return E_NOTIMPL;
 446 }
 447
 448 /* VTable for the IExtractIconW interface of the UnixFolderIcon class.
 449  */
 450 static const IExtractIconWVtbl UnixFolderIcon_IExtractIconW_Vtbl = {
 451     UnixFolderIcon_IExtractIconW_QueryInterface,
 452     UnixFolderIcon_IExtractIconW_AddRef,
 453     UnixFolderIcon_IExtractIconW_Release,
 454     UnixFolderIcon_IExtractIconW_GetIconLocation,
 455     UnixFolderIcon_IExtractIconW_Extract
 456 };
 457
 458 /* The singleton instance
 459  */
 460 UnixFolderIcon UnixFolderIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, TRUE };
 461 UnixFolderIcon UnixDocumentIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, FALSE };
 462
 463 /******************************************************************************
 464  * UnixFolder
 465  *
 466  * Class whose heap based instances represent unix filesystem directories.
 467  */
 468
 469 /* UnixFolder object layout and typedef.
 470  */
 471 typedef struct _UnixFolder {
 472     const IShellFolder2Vtbl  *lpIShellFolder2Vtbl;
 473     const IPersistFolderVtbl *lpIPersistFolderVtbl;
 474     ULONG m_cRef;
 475     CHAR *m_pszPath;
 476     LPITEMIDLIST m_pidlLocation;
 477     LPITEMIDLIST *m_apidlSubDirs;
 478     DWORD m_cSubDirs;
 479 } UnixFolder;
 480
 481 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 482     DWORD i;
 483
 484     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 485
 486     if (pUnixFolder->m_apidlSubDirs)
 487         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 488             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 489     SHFree(pUnixFolder->m_apidlSubDirs);
 490     SHFree(pUnixFolder->m_pszPath);
 491     ILFree(pUnixFolder->m_pidlLocation);
 492     SHFree(pUnixFolder);
 493 }
 494
 495 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 496     void **ppv)
 497 {
 498     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 499
 500     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 501
 502     if (!ppv) return E_INVALIDARG;
 503
 504     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 505         IsEqualIID(&IID_IShellFolder2, riid))
 506     {
 507         *ppv = &This->lpIShellFolder2Vtbl;
 508     } else if (IsEqualIID(&IID_IPersistFolder, riid) || IsEqualIID(&IID_IPersist, riid)) {
 509         *ppv = &This->lpIPersistFolderVtbl;
 510     } else {
 511         *ppv = NULL;
 512         return E_NOINTERFACE;
 513     }
 514
 515     IUnknown_AddRef((IUnknown*)*ppv);
 516     return S_OK;
 517 }
 518
 519 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 520     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 521
 522     TRACE("(iface=%p)\n", iface);
 523
 524     return InterlockedIncrement(&This->m_cRef);
 525 }
 526
 527 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 528     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 529     ULONG cRef;
 530
 531     TRACE("(iface=%p)\n", iface);
 532
 533     cRef = InterlockedDecrement(&This->m_cRef);
 534
 535     if (!cRef)
 536         UnixFolder_Destroy(This);
 537
 538     return cRef;
 539 }
 540
 541 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 542     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 543     ULONG* pdwAttributes)
 544 {
 545     int cPathLen;
 546     char *pszAnsiPath;
 547     BOOL result;
 548
 549     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 550           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 551           pchEaten, ppidl, pdwAttributes);
 552
 553     cPathLen = lstrlenW(lpszDisplayName);
 554     pszAnsiPath = (char*)SHAlloc(cPathLen+1);
 555     WideCharToMultiByte(CP_ACP, 0, lpszDisplayName, -1, pszAnsiPath, cPathLen+1, NULL, NULL);
 556
 557     result = UNIXFS_path_to_pidl(pszAnsiPath, ppidl);
 558
 559     SHFree(pszAnsiPath);
 560
 561     return result ? S_OK : E_FAIL;
 562 }
 563
 564 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 565
 566 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 567     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 568 {
 569     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 570     IUnknown *newIterator;
 571     HRESULT hr;
 572
 573     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 574             iface, hwndOwner, grfFlags, ppEnumIDList);
 575
 576     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 577     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 578     IUnknown_Release(newIterator);
 579
 580     return hr;
 581 }
 582
 583 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 584     LPBC pbcReserved, REFIID riid, void** ppvOut)
 585 {
 586     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 587     IPersistFolder *persistFolder;
 588     LPITEMIDLIST pidlSubFolder;
 589     HRESULT hr;
 590
 591     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 592             iface, pidl, pbcReserved, riid, ppvOut);
 593
 594     hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder, (void**)&persistFolder);
 595     if (!SUCCEEDED(hr)) return hr;
 596     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 597
 598     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 599     IPersistFolder_Initialize(persistFolder, pidlSubFolder);
 600     IPersistFolder_Release(persistFolder);
 601     ILFree(pidlSubFolder);
 602
 603     return hr;
 604 }
 605
 606 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 607     LPBC pbcReserved, REFIID riid, void** ppvObj)
 608 {
 609     TRACE("stub\n");
 610     return E_NOTIMPL;
 611 }
 612
 613 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 614     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 615 {
 616     BOOL isEmpty1, isEmpty2;
 617     HRESULT hr = E_FAIL;
 618     LPITEMIDLIST firstpidl;
 619     IShellFolder2 *psf;
 620     int compare;
 621
 622     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 623
 624     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 625     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 626
 627     if (isEmpty1 && isEmpty2)
 628         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 629     else if (isEmpty1)
 630         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 631     else if (isEmpty2)
 632         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 633
 634     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 635         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 636     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 637         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 638
 639     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 640                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 641                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 642
 643     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 644         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)(compare == CSTR_LESS_THAN)?-1:1);
 645
 646     if (pidl1->mkid.cb < pidl2->mkid.cb)
 647         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 648     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 649         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 650
 651     firstpidl = ILCloneFirst(pidl1);
 652     pidl1 = ILGetNext(pidl1);
 653     pidl2 = ILGetNext(pidl2);
 654
 655     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 656     if (SUCCEEDED(hr)) {
 657         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 658         IShellFolder2_Release(psf);
 659     }
 660
 661     ILFree(firstpidl);
 662     return hr;
 663 }
 664
 665 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 666     REFIID riid, void** ppv)
 667 {
 668     HRESULT hr = E_INVALIDARG;
 669
 670     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 671
 672     if (!ppv) return E_INVALIDARG;
 673     *ppv = NULL;
 674
 675     if (IsEqualIID(&IID_IShellView, riid)) {
 676         LPSHELLVIEW pShellView;
 677
 678         pShellView = IShellView_Constructor((IShellFolder*)iface);
 679         if (pShellView) {
 680             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 681             IShellView_Release(pShellView);
 682         }
 683     }
 684
 685     return hr;
 686 }
 687
 688 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 689     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 690 {
 691     UINT i;
 692     SFGAOF flags= ~(SFGAOF)0;
 693
 694     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p) semi-stub\n", iface, cidl, apidl, rgfInOut);
 695
 696     for (i=0; i<cidl; i++) {
 697         LPPIDLDATA pData = _ILGetDataPointer(apidl[i]);
 698         if (!pData) continue;
 699         if (pData->type == PT_FOLDER) flags &= (SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_HASSUBFOLDER);
 700         if (pData->type == PT_VALUE) flags &= SFGAO_FILESYSTEM;
 701     }
 702
 703     *rgfInOut = *rgfInOut & flags;
 704
 705     return S_OK;
 706 }
 707
 708 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 709     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 710 {
 711     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 712
 713     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 714         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 715
 716     if (IsEqualIID(&IID_IContextMenu, riid)) {
 717         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 718         return S_OK;
 719     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 720         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 721         return S_OK;
 722     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 723         FIXME("IExtractIconA\n");
 724         return E_FAIL;
 725     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 726         if (cidl != 1) return E_FAIL;
 727         if (_ILIsFolder(apidl[0]))
 728             *ppvOut = &UnixFolderIconSingleton;
 729         else
 730             *ppvOut = &UnixDocumentIconSingleton;
 731         return S_OK;
 732     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 733         FIXME("IDropTarget\n");
 734         return E_FAIL;
 735     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 736         FIXME("IShellLinkW\n");
 737         return E_FAIL;
 738     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
 739         FIXME("IShellLinkA\n");
 740         return E_FAIL;
 741     } else {
 742         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
 743         return E_NOINTERFACE;
 744     }
 745 }
 746
 747 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
 748     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
 749 {
 750     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 751     HRESULT hr = S_OK;
 752
 753     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
 754
 755     if ((GET_SHGDN_FOR(uFlags) == SHGDN_FORPARSING) &&
 756         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
 757     {
 758         if (!pidl->mkid.cb) {
 759             lpName->uType = STRRET_CSTR;
 760             strcpy(lpName->u.cStr, This->m_pszPath);
 761         } else {
 762             IShellFolder *pSubFolder;
 763             USHORT emptyIDL = 0;
 764
 765             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
 766             if (!SUCCEEDED(hr)) return hr;
 767
 768             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
 769             IShellFolder_Release(pSubFolder);
 770         }
 771     } else {
 772         char *pszFileName = _ILGetTextPointer(pidl);
 773         lpName->uType = STRRET_CSTR;
 774         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
 775     }
 776
 777     return hr;
 778 }
 779
 780 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* This, HWND hwnd,
 781     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
 782 {
 783     TRACE("stub\n");
 784     return E_NOTIMPL;
 785 }
 786
 787 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
 788     IEnumExtraSearch **ppEnum)
 789 {
 790     TRACE("stub\n");
 791     return E_NOTIMPL;
 792 }
 793
 794 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
 795     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
 796 {
 797     TRACE("stub\n");
 798     return E_NOTIMPL;
 799 }
 800
 801 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
 802     UINT iColumn, SHCOLSTATEF *pcsFlags)
 803 {
 804     TRACE("stub\n");
 805     return E_NOTIMPL;
 806 }
 807
 808 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
 809     GUID *pguid)
 810 {
 811     TRACE("stub\n");
 812     return E_NOTIMPL;
 813 }
 814
 815 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
 816     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
 817 {
 818     TRACE("stub\n");
 819     return E_NOTIMPL;
 820 }
 821
 822 #define SHELLVIEWCOLUMNS 6
 823
 824 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
 825     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
 826 {
 827     HRESULT hr = E_FAIL;
 828     struct passwd *pPasswd;
 829     struct group *pGroup;
 830     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
 831         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
 832         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
 833         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
 834         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
 835         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
 836         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
 837     };
 838
 839     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
 840
 841     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
 842         return E_INVALIDARG;
 843
 844     if (!pidl) {
 845         psd->fmt = SFHeader[iColumn].fmt;
 846         psd->cxChar = SFHeader[iColumn].cxChar;
 847         psd->str.uType = STRRET_CSTR;
 848         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
 849         return S_OK;
 850     } else {
 851         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
 852         psd->str.u.cStr[0] = '\0';
 853         psd->str.uType = STRRET_CSTR;
 854         switch (iColumn) {
 855             case 0:
 856                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
 857                 break;
 858             case 1:
 859                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
 860                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
 861                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
 862                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
 863                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
 864                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
 865                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
 866                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
 867                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
 868                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
 869                 psd->str.u.cStr[10] = '\0';
 870                 break;
 871             case 2:
 872                 pPasswd = getpwuid(pStatStruct->st_uid);
 873                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
 874                 break;
 875             case 3:
 876                 pGroup = getgrgid(pStatStruct->st_gid);
 877                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
 878                 break;
 879             case 4:
 880                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
 881                 break;
 882             case 5:
 883                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
 884                 break;
 885         }
 886     }
 887
 888     return hr;
 889 }
 890
 891 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
 892     SHCOLUMNID *pscid)
 893 {
 894     TRACE("stub\n");
 895     return E_NOTIMPL;
 896 }
 897
 898 /* VTable for UnixFolder's IShellFolder2 interface.
 899  */
 900 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
 901     UnixFolder_IShellFolder2_QueryInterface,
 902     UnixFolder_IShellFolder2_AddRef,
 903     UnixFolder_IShellFolder2_Release,
 904     UnixFolder_IShellFolder2_ParseDisplayName,
 905     UnixFolder_IShellFolder2_EnumObjects,
 906     UnixFolder_IShellFolder2_BindToObject,
 907     UnixFolder_IShellFolder2_BindToStorage,
 908     UnixFolder_IShellFolder2_CompareIDs,
 909     UnixFolder_IShellFolder2_CreateViewObject,
 910     UnixFolder_IShellFolder2_GetAttributesOf,
 911     UnixFolder_IShellFolder2_GetUIObjectOf,
 912     UnixFolder_IShellFolder2_GetDisplayNameOf,
 913     UnixFolder_IShellFolder2_SetNameOf,
 914     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
 915     UnixFolder_IShellFolder2_EnumSearches,
 916     UnixFolder_IShellFolder2_GetDefaultColumn,
 917     UnixFolder_IShellFolder2_GetDefaultColumnState,
 918     UnixFolder_IShellFolder2_GetDetailsEx,
 919     UnixFolder_IShellFolder2_GetDetailsOf,
 920     UnixFolder_IShellFolder2_MapColumnToSCID
 921 };
 922
 923 static HRESULT WINAPI UnixFolder_IPersistFolder_QueryInterface(IPersistFolder* This, REFIID riid,
 924     void** ppvObject)
 925 {
 926     return UnixFolder_IShellFolder2_QueryInterface(
 927                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder, This), riid, ppvObject);
 928 }
 929
 930 static ULONG WINAPI UnixFolder_IPersistFolder_AddRef(IPersistFolder* This)
 931 {
 932     return UnixFolder_IShellFolder2_AddRef(
 933                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder, This));
 934 }
 935
 936 static ULONG WINAPI UnixFolder_IPersistFolder_Release(IPersistFolder* This)
 937 {
 938     return UnixFolder_IShellFolder2_Release(
 939                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder, This));
 940 }
 941
 942 static HRESULT WINAPI UnixFolder_IPersistFolder_GetClassID(IPersistFolder* This, CLSID* pClassID)
 943 {
 944     TRACE("stub\n");
 945     return E_NOTIMPL;
 946 }
 947
 948 static HRESULT WINAPI UnixFolder_IPersistFolder_Initialize(IPersistFolder* iface, LPCITEMIDLIST pidl)
 949 {
 950     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder, iface);
 951
 952     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
 953
 954     This->m_pidlLocation = ILClone(pidl);
 955     UNIXFS_pidl_to_path(pidl, &This->m_pszPath);
 956     UNIXFS_build_subfolder_pidls(This->m_pszPath, &This->m_apidlSubDirs, &This->m_cSubDirs);
 957
 958     return S_OK;
 959 }
 960
 961 /* VTable for UnixFolder's IPersistFolder interface.
 962  */
 963 static const IPersistFolderVtbl UnixFolder_IPersistFolder_Vtbl = {
 964     UnixFolder_IPersistFolder_QueryInterface,
 965     UnixFolder_IPersistFolder_AddRef,
 966     UnixFolder_IPersistFolder_Release,
 967     UnixFolder_IPersistFolder_GetClassID,
 968     UnixFolder_IPersistFolder_Initialize
 969 };
 970
 971 /******************************************************************************
 972  * UnixFolder_Constructor [Internal]
 973  *
 974  * PARAMS
 975  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
 976  *  riid      [I] Interface asked for by the client.
 977  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
 978  *
 979  * NOTES
 980  *  This is the only function exported from shfldr_unixfs.c. It's called from
 981  *  shellole.c's default class factory and thus has to exhibit a LPFNCREATEINSTANCE
 982  *  compatible signature.
 983  */
 984 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
 985     HRESULT hr;
 986     UnixFolder *pUnixFolder;
 987
 988     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
 989
 990     pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
 991     pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
 992     pUnixFolder->lpIPersistFolderVtbl = &UnixFolder_IPersistFolder_Vtbl;
 993     pUnixFolder->m_cRef = 0;
 994     pUnixFolder->m_pszPath = NULL;
 995     pUnixFolder->m_apidlSubDirs = NULL;
 996     pUnixFolder->m_cSubDirs = 0;
 997
 998     UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
 999     hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1000     UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1001     return hr;
1002 }
1003
1004 /******************************************************************************
1005  * UnixSubFolderIterator
1006  *
1007  * Class whose heap based objects represent iterators over the sub-directories
1008  * of a given UnixFolder object.
1009  */
1010
1011 /* UnixSubFolderIterator object layout and typedef.
1012  */
1013 typedef struct _UnixSubFolderIterator {
1014     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1015     ULONG m_cRef;
1016     UnixFolder *m_pUnixFolder;
1017     ULONG m_cIdx;
1018     SHCONTF m_fFilter;
1019 } UnixSubFolderIterator;
1020
1021 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1022     TRACE("(iterator=%p)\n", iterator);
1023
1024     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1025     SHFree(iterator);
1026 }
1027
1028 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1029     REFIID riid, void** ppv)
1030 {
1031     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1032
1033     if (!ppv) return E_INVALIDARG;
1034
1035     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1036         *ppv = iface;
1037     } else {
1038         *ppv = NULL;
1039         return E_NOINTERFACE;
1040     }
1041
1042     IEnumIDList_AddRef(iface);
1043     return S_OK;
1044 }
1045
1046 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1047 {
1048     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1049
1050     TRACE("(iface=%p)\n", iface);
1051
1052     return InterlockedIncrement(&This->m_cRef);
1053 }
1054
1055 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1056 {
1057     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1058     ULONG cRef;
1059
1060     TRACE("(iface=%p)\n", iface);
1061
1062     cRef = InterlockedDecrement(&This->m_cRef);
1063
1064     if (!cRef)
1065         UnixSubFolderIterator_Destroy(This);
1066
1067     return cRef;
1068 }
1069
1070 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1071     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1072 {
1073     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1074     ULONG i;
1075
1076     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1077
1078     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1079         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1080         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1081             rgelt[i] = ILClone(pCurrent);
1082             i++;
1083         }
1084     }
1085
1086     if (pceltFetched)
1087         *pceltFetched = i;
1088
1089     return i == celt ? S_OK : S_FALSE;
1090 }
1091
1092 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1093 {
1094     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1095     ULONG i;
1096
1097     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1098
1099     for (i=0; i < celt; i++) {
1100         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1101                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1102         {
1103             This->m_cIdx++;
1104         }
1105         This->m_cIdx++;
1106     }
1107
1108     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1109         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1110         return S_FALSE;
1111     } else {
1112         return S_OK;
1113     }
1114 }
1115
1116 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1117 {
1118     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1119
1120     TRACE("(iface=%p)\n", iface);
1121
1122     This->m_cIdx = 0;
1123
1124     return S_OK;
1125 }
1126
1127 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1128     IEnumIDList** ppenum)
1129 {
1130     TRACE("stub\n");
1131     return E_NOTIMPL;
1132 }
1133
1134 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1135  */
1136 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1137     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1138     UnixSubFolderIterator_IEnumIDList_AddRef,
1139     UnixSubFolderIterator_IEnumIDList_Release,
1140     UnixSubFolderIterator_IEnumIDList_Next,
1141     UnixSubFolderIterator_IEnumIDList_Skip,
1142     UnixSubFolderIterator_IEnumIDList_Reset,
1143     UnixSubFolderIterator_IEnumIDList_Clone
1144 };
1145
1146 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1147     UnixSubFolderIterator *iterator;
1148
1149     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1150
1151     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1152     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1153     iterator->m_cRef = 0;
1154     iterator->m_cIdx = 0;
1155     iterator->m_pUnixFolder = pUnixFolder;
1156     iterator->m_fFilter = fFilter;
1157
1158     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1159     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1160
1161     return (IUnknown*)iterator;
1162 }