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 #include <limits.h>
  34
  35 #define COBJMACROS
  36 #define NONAMELESSUNION
  37 #define NONAMELESSSTRUCT
  38
  39 #include "windef.h"
  40 #include "winbase.h"
  41 #include "winuser.h"
  42 #include "objbase.h"
  43 #include "winreg.h"
  44 #include "winternl.h"
  45 #include "wine/debug.h"
  46
  47 #include "shell32_main.h"
  48 #include "shfldr.h"
  49 #include "shresdef.h"
  50 #include "pidl.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  53
  54 const GUID CLSID_UnixFolder = {0xcc702eb2, 0x7dc5, 0x11d9, {0xc6, 0x87, 0x00, 0x04, 0x23, 0x8a, 0x01, 0xcd}};
  55
  56 #define ADJUST_THIS(c,m,p) ((c*)(((long)p)-(long)&(((c*)0)->lp##m##Vtbl)))
  57 #define STATIC_CAST(i,p) ((i*)&p->lp##i##Vtbl)
  58
  59 /* FileStruct reserves one byte for szNames, thus we don't have to
  60  * alloc a byte for the terminating '\0' of 'name'. Two of the
  61  * additional bytes are for SHITEMID's cb field. One is for IDLDATA's
  62  * type field. One is for FileStruct's szNames field, to terminate
  63  * the alternate DOS name, which we don't use here. And then there's
  64  * the additional StatStruct.
  65  */
  66 #define SHITEMID_LEN_FROM_NAME_LEN(n) \
  67     (sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
  68 #define NAME_LEN_FROM_LPSHITEMID(s) \
  69     (((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
  70 #define LPSTATSTRUCT_FROM_LPSHITEMID(s) ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct)))
  71
  72 /* This structure is appended to shell32's FileStruct type in IDLs to store unix
  73  * filesystem specific informationen extracted with the stat system call.
  74  */
  75 typedef struct tagStatStruct {
  76     mode_t st_mode;
  77     uid_t  st_uid;
  78     gid_t  st_gid;
  79 } StatStruct;
  80
  81 /******************************************************************************
  82  * UNIXFS_is_pidl_of_type [INTERNAL]
  83  *
  84  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
  85  *
  86  * PARAMS
  87  *  pIDL    [I] The ITEMIDLIST to be checked.
  88  *  fFilter [I] Shell condition flags, which specify the filter.
  89  *
  90  * RETURNS
  91  *  TRUE, if pIDL is accepted by fFilter
  92  *  FALSE, otherwise
  93  */
  94 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
  95     LPSTR pszText = _ILGetTextPointer(pIDL);
  96     if (!pszText) return FALSE;
  97     if (pszText[0] == '.' && !(fFilter & SHCONTF_INCLUDEHIDDEN)) return FALSE;
  98     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
  99     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
 100     return FALSE;
 101 }
 102
 103 /******************************************************************************
 104  * UNIXFS_build_shitemid [Internal]
 105  *
 106  * Constructs a new SHITEMID for a single path item (up to the next '/' or
 107  * '\0') into a buffer. Decorates the SHITEMID with information from a stat
 108  * system call.
 109  *
 110  * PARAMS
 111  *  name   [I] The name of the next path item. Terminated by either '\0' or '/'.
 112  *  pStat  [I] A stat struct variable obtained by a stat system call on the file.
 113  *  buffer [O] SHITEMID will be constructed here.
 114  *
 115  * RETURNS
 116  *  A pointer to the next '/' or '\0' character in name.
 117  *
 118  * NOTES
 119  *  Minimum size of buffer is SHITEMID_LEN_FROM_NAME_LEN(strlen(name)).
 120  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 121  *  a 0 USHORT value.
 122  */
 123 static char* UNIXFS_build_shitemid(char *name, struct stat *pStat, void *buffer) {
 124     LARGE_INTEGER time;
 125     FILETIME fileTime;
 126     LPPIDLDATA pIDLData;
 127     StatStruct *pStatStruct;
 128     int cNameLen;
 129     char *pSlash;
 130
 131     TRACE("(name=%s, buffer=%p)\n", debugstr_a(name), buffer);
 132
 133     pSlash = strchr(name, '/');
 134     cNameLen = pSlash ? pSlash - name : strlen(name);
 135
 136     memset(buffer, 0, SHITEMID_LEN_FROM_NAME_LEN(cNameLen));
 137     ((LPSHITEMID)buffer)->cb = SHITEMID_LEN_FROM_NAME_LEN(cNameLen) ;
 138
 139     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)buffer);
 140     pIDLData->type = S_ISDIR(pStat->st_mode) ? PT_FOLDER : PT_VALUE;
 141     pIDLData->u.file.dwFileSize = (DWORD)pStat->st_size;
 142     RtlSecondsSince1970ToTime( pStat->st_mtime, &time );
 143     fileTime.dwLowDateTime = time.u.LowPart;
 144     fileTime.dwHighDateTime = time.u.HighPart;
 145     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 146     pIDLData->u.file.uFileAttribs =
 147         (S_ISDIR(pStat->st_mode) ? FILE_ATTRIBUTE_DIRECTORY : 0) |
 148         (name[0] == '.' ? FILE_ATTRIBUTE_HIDDEN : 0);
 149     memcpy(pIDLData->u.file.szNames, name, cNameLen);
 150
 151     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(buffer);
 152     pStatStruct->st_mode = pStat->st_mode;
 153     pStatStruct->st_uid = pStat->st_uid;
 154     pStatStruct->st_gid = pStat->st_gid;
 155
 156     return pSlash ? pSlash+1 : (name + cNameLen);
 157 }
 158
 159 /******************************************************************************
 160  * UNIXFS_path_to_pidl [Internal]
 161  *
 162  * PARAMS
 163  *  base  [I] Path prefix. May be NULL if "path" parameter is absolute
 164  *  path  [I] An absolute unix path or a path relativ to "base"
 165  *  ppidl [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 166  *
 167  * RETURNS
 168  *  Success: TRUE
 169  *  Failure: FALSE, invalid params or out of memory
 170  */
 171 static BOOL UNIXFS_path_to_pidl(const char *base, const char *path, LPITEMIDLIST *ppidl) {
 172     LPITEMIDLIST pidl;
 173     struct stat fileStat;
 174     int cSubDirs, cPidlLen, res;
 175     char *pSlash, *pCompletePath, *pNextPathElement;
 176
 177     TRACE("path=%s, ppidl=%p\n", debugstr_a(path), ppidl);
 178
 179     /* Fail, if base + path is not an absolute path */
 180     if (!ppidl || !path || (path[0] != '/' && (!base || base[0] != '/'))) return FALSE;
 181
 182     /* Build an absolute path and let pNextPathElement point to the interesting relativ path. */
 183     if (path[0] != '/') {
 184         pCompletePath = SHAlloc(strlen(base)+strlen(path)+1);
 185         if (!pCompletePath) return FALSE;
 186         sprintf(pCompletePath, "%s%s", base, path);
 187         pNextPathElement = pCompletePath + strlen(base);
 188     } else {
 189         pCompletePath = SHAlloc(strlen(path)+1);
 190         if (!pCompletePath) return FALSE;
 191         memcpy(pCompletePath, path, strlen(path)+1);
 192         pNextPathElement = pCompletePath + 1;
 193     }
 194
 195     /* Count the number of sub-directories in the path */
 196     cSubDirs = 1; /* Path may not be terminated with '/', thus start with 1 */
 197     pSlash = strchr(pNextPathElement, '/');
 198     while (pSlash) {
 199         cSubDirs++;
 200         pSlash = strchr(pSlash+1, '/');
 201     }
 202
 203     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 204      * characters, which are not stored in the ITEMIDLIST. */
 205     cPidlLen = strlen(pCompletePath) - cSubDirs + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 206     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 207     if (!pidl) {
 208         SHFree(pCompletePath);
 209         return FALSE;
 210     }
 211
 212     /* Concatenate the SHITEMIDs of the sub-directories. */
 213     while (*pNextPathElement) {
 214         pSlash = strchr(pNextPathElement, '/');
 215         if (pSlash) {
 216             *pSlash = '\0';
 217             res = stat(pCompletePath, &fileStat);
 218             *pSlash = '/';
 219             if (res) {
 220                 SHFree(pCompletePath);
 221                 SHFree(pidl);
 222                 return FALSE;
 223             }
 224         } else {
 225             if (stat(pCompletePath, &fileStat)) {
 226                 SHFree(pCompletePath);
 227                 SHFree(pidl);
 228                 return FALSE;
 229             }
 230         }
 231
 232         pNextPathElement = UNIXFS_build_shitemid(pNextPathElement, &fileStat, pidl);
 233         pidl = ILGetNext(pidl);
 234     }
 235     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 236
 237     SHFree(pCompletePath);
 238     return TRUE;
 239 }
 240
 241 /******************************************************************************
 242  * UNIXFS_pidl_to_path [Internal]
 243  *
 244  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 245  *
 246  * PARAMS
 247  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 248  *  path [O] The corresponding unix path as a zero terminated ascii string
 249  *
 250  * RETURNS
 251  *  Success: TRUE
 252  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 253  */
 254 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, PSZ *path) {
 255     LPCITEMIDLIST current = pidl, root;
 256     DWORD dwPathLen;
 257     char *pNextDir;
 258
 259     TRACE("(pidl=%p, path=%p)\n", pidl, path);
 260
 261     *path = NULL;
 262
 263     /* Find the UnixFolderClass root */
 264     while (current->mkid.cb) {
 265         LPPIDLDATA pData = _ILGetDataPointer(current);
 266         if (!pData) return FALSE;
 267         if (pData->type == PT_GUID && IsEqualIID(&CLSID_UnixFolder, &pData->u.guid.guid)) break;
 268         current = ILGetNext(current);
 269     }
 270     root = current = ILGetNext(current);
 271
 272     /* Determine the path's length bytes */
 273     dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 274     while (current->mkid.cb) {
 275         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 276         current = ILGetNext(current);
 277     };
 278
 279     /* Build the path */
 280     *path = pNextDir = SHAlloc(dwPathLen);
 281     if (!path) {
 282         WARN("SHAlloc failed!\n");
 283         return FALSE;
 284     }
 285     current = root;
 286     *pNextDir++ = '/';
 287     while (current->mkid.cb) {
 288         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 289         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 290         *pNextDir++ = '/';
 291         current = ILGetNext(current);
 292     }
 293     *pNextDir='\0';
 294
 295     TRACE("resulting path: %s\n", *path);
 296     return TRUE;
 297 }
 298
 299 /******************************************************************************
 300  * UNIXFS_build_subfolder_pidls [Internal]
 301  *
 302  * Builds an array of subfolder PIDLs relative to a unix directory
 303  *
 304  * PARAMS
 305  *  path   [I] Name of a unix directory as a zero terminated ascii string
 306  *  apidl  [O] The array of PIDLs
 307  *  pCount [O] Size of apidl
 308  *
 309  * RETURNS
 310  *  Success: TRUE
 311  *  Failure: FALSE, path is not a valid unix directory or out of memory
 312  *
 313  * NOTES
 314  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 315  *  to release each PIDL as well as the array itself with SHFree.
 316  */
 317 static BOOL UNIXFS_build_subfolder_pidls(const char *path, LPITEMIDLIST **apidl, DWORD *pCount)
 318 {
 319     struct dirent *pDirEntry;
 320     struct stat fileStat;
 321     DIR *dir;
 322     DWORD cDirEntries, i;
 323     USHORT sLen;
 324     char *pszFQPath;
 325
 326     TRACE("(path=%s, apidl=%p, pCount=%p)\n", debugstr_a(path), apidl, pCount);
 327
 328     *apidl = NULL;
 329     *pCount = 0;
 330
 331     dir = opendir(path);
 332     if (!dir) {
 333         WARN("Failed to open directory '%s'.\n", path);
 334         return FALSE;
 335     }
 336
 337     /* Allocate space for fully qualified paths */
 338     pszFQPath = SHAlloc(strlen(path) + PATH_MAX);
 339     if (!pszFQPath) {
 340         WARN("SHAlloc failed!\n");
 341         return FALSE;
 342     }
 343
 344     /* Count number of directory entries. */
 345     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 346         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 347         sprintf(pszFQPath, "%s%s", path, pDirEntry->d_name);
 348         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 349     }
 350
 351     /* If there are no entries, we are done. */
 352     if (cDirEntries == 0) {
 353         closedir(dir);
 354         SHFree(pszFQPath);
 355         return TRUE;
 356     }
 357
 358     /* Allocate the array of PIDLs */
 359     *apidl = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 360     if (!apidl) {
 361         WARN("SHAlloc failed!\n");
 362         return FALSE;
 363     }
 364
 365     /* Allocate and initialize one SHITEMID per sub-directory. */
 366     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 367         LPSHITEMID pid;
 368
 369         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 370
 371         sprintf(pszFQPath, "%s%s", path, pDirEntry->d_name);
 372         if (stat(pszFQPath, &fileStat)) continue;
 373         if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) continue;
 374
 375         sLen = strlen(pDirEntry->d_name);
 376         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 377         if (!pid) {
 378             WARN("SHAlloc failed!\n");
 379             return FALSE;
 380         }
 381         UNIXFS_build_shitemid(pDirEntry->d_name, &fileStat, pid);
 382         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 383
 384         (*apidl)[i++] = (LPITEMIDLIST)pid;
 385     }
 386
 387     *pCount = i;
 388     closedir(dir);
 389     SHFree(pszFQPath);
 390
 391     return TRUE;
 392 }
 393
 394 /******************************************************************************
 395  * UnixFolderIcon
 396  *
 397  * Singleton class, which is used by the shell to extract icons to represent
 398  * folders in tree- and listviews. Currently, all this singleton does is to
 399  * provide the shell with the absolute path to "shell32.dll" and with the
 400  * indices of the closed and opened folder icons in the resources of this dll.
 401  */
 402
 403 /* UnixFolderIcon object layout and typedef.
 404  */
 405 typedef struct _UnixFolderIcon {
 406     const IExtractIconWVtbl *lpIExtractIconWVtbl;
 407     BOOL bFolder;
 408 } UnixFolderIcon;
 409
 410 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_QueryInterface(IExtractIconW *iface, REFIID riid,
 411     void **ppv)
 412 {
 413     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 414
 415     if (!ppv) return E_INVALIDARG;
 416
 417     if (IsEqualIID(&IID_IUnknown, riid) ||
 418         IsEqualIID(&IID_IExtractIconW, riid))
 419     {
 420         *ppv = iface;
 421     } else {
 422         *ppv = NULL;
 423         return E_NOINTERFACE;
 424     }
 425
 426     IExtractIconW_AddRef(iface);
 427     return S_OK;
 428 }
 429
 430 static ULONG WINAPI UnixFolderIcon_IExtractIconW_AddRef(IExtractIconW *iface) {
 431     TRACE("(iface=%p)\n", iface);
 432     return 2;
 433 }
 434
 435 static ULONG WINAPI UnixFolderIcon_IExtractIconW_Release(IExtractIconW *iface) {
 436     TRACE("(iface=%p)\n", iface);
 437     return 1;
 438 }
 439
 440 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_GetIconLocation(IExtractIconW *iface,
 441     UINT uFlags, LPWSTR szIconFile, UINT cchMax, INT* piIndex, UINT* pwFlags)
 442 {
 443     UnixFolderIcon *This = ADJUST_THIS(UnixFolderIcon, IExtractIconW, iface);
 444
 445     TRACE("(iface=%p, uFlags=%u, szIconFile=%s, cchMax=%u, piIndex=%p, pwFlags=%p)\n",
 446             iface, uFlags, debugstr_w(szIconFile), cchMax, piIndex, pwFlags);
 447
 448     lstrcpynW(szIconFile, swShell32Name, cchMax);
 449     if (This->bFolder) {
 450         *piIndex = (uFlags & GIL_OPENICON) ? -IDI_SHELL_FOLDER_OPEN : -IDI_SHELL_FOLDER;
 451     } else {
 452         *piIndex = -IDI_SHELL_DOCUMENT;
 453     }
 454     *pwFlags = 0;
 455
 456     return S_OK;
 457 }
 458
 459 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_Extract(
 460     IExtractIconW *iface, LPCWSTR pszFile, UINT nIconIndex, HICON* phiconLarge, HICON* phiconSmall,
 461     UINT nIconSize)
 462 {
 463     TRACE("(iface=%p, pszFile=%s, nIconIndex=%u, phiconLarge=%p, phiconSmall=%p, nIconSize=%u)"
 464           "stub\n", iface, debugstr_w(pszFile), nIconIndex, phiconLarge, phiconSmall, nIconSize);
 465
 466     return E_NOTIMPL;
 467 }
 468
 469 /* VTable for the IExtractIconW interface of the UnixFolderIcon class.
 470  */
 471 static const IExtractIconWVtbl UnixFolderIcon_IExtractIconW_Vtbl = {
 472     UnixFolderIcon_IExtractIconW_QueryInterface,
 473     UnixFolderIcon_IExtractIconW_AddRef,
 474     UnixFolderIcon_IExtractIconW_Release,
 475     UnixFolderIcon_IExtractIconW_GetIconLocation,
 476     UnixFolderIcon_IExtractIconW_Extract
 477 };
 478
 479 /* The singleton instance
 480  */
 481 UnixFolderIcon UnixFolderIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, TRUE };
 482 UnixFolderIcon UnixDocumentIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, FALSE };
 483
 484 /******************************************************************************
 485  * UnixFolder
 486  *
 487  * Class whose heap based instances represent unix filesystem directories.
 488  */
 489
 490 /* UnixFolder object layout and typedef.
 491  */
 492 typedef struct _UnixFolder {
 493     const IShellFolder2Vtbl  *lpIShellFolder2Vtbl;
 494     const IPersistFolder2Vtbl *lpIPersistFolder2Vtbl;
 495     ULONG m_cRef;
 496     CHAR *m_pszPath;
 497     LPITEMIDLIST m_pidlLocation;
 498     LPITEMIDLIST *m_apidlSubDirs;
 499     DWORD m_cSubDirs;
 500 } UnixFolder;
 501
 502 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 503     DWORD i;
 504
 505     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 506
 507     if (pUnixFolder->m_apidlSubDirs)
 508         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 509             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 510     SHFree(pUnixFolder->m_apidlSubDirs);
 511     SHFree(pUnixFolder->m_pszPath);
 512     ILFree(pUnixFolder->m_pidlLocation);
 513     SHFree(pUnixFolder);
 514 }
 515
 516 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 517     void **ppv)
 518 {
 519     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 520
 521     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 522
 523     if (!ppv) return E_INVALIDARG;
 524
 525     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 526         IsEqualIID(&IID_IShellFolder2, riid))
 527     {
 528         *ppv = &This->lpIShellFolder2Vtbl;
 529     } else if (IsEqualIID(&IID_IPersistFolder2, riid) || IsEqualIID(&IID_IPersistFolder, riid) ||
 530                IsEqualIID(&IID_IPersist, riid))
 531     {
 532         *ppv = &This->lpIPersistFolder2Vtbl;
 533     } else {
 534         *ppv = NULL;
 535         return E_NOINTERFACE;
 536     }
 537
 538     IUnknown_AddRef((IUnknown*)*ppv);
 539     return S_OK;
 540 }
 541
 542 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 543     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 544
 545     TRACE("(iface=%p)\n", iface);
 546
 547     return InterlockedIncrement(&This->m_cRef);
 548 }
 549
 550 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 551     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 552     ULONG cRef;
 553
 554     TRACE("(iface=%p)\n", iface);
 555
 556     cRef = InterlockedDecrement(&This->m_cRef);
 557
 558     if (!cRef)
 559         UnixFolder_Destroy(This);
 560
 561     return cRef;
 562 }
 563
 564 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 565     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 566     ULONG* pdwAttributes)
 567 {
 568     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 569     int cPathLen;
 570     char *pszAnsiPath, *pBackslash;
 571     BOOL result;
 572
 573     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 574           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 575           pchEaten, ppidl, pdwAttributes);
 576     pchEaten = NULL;
 577     cPathLen = lstrlenW(lpszDisplayName);
 578     pszAnsiPath = (char*)SHAlloc(cPathLen+1);
 579     WideCharToMultiByte(CP_ACP, 0, lpszDisplayName, -1, pszAnsiPath, cPathLen+1, NULL, NULL);
 580
 581     for (pBackslash = strchr(pszAnsiPath, '\\'); pBackslash; pBackslash = strchr(pBackslash, '\\'))
 582         *pBackslash = '/';
 583
 584     result = UNIXFS_path_to_pidl(This->m_pszPath, pszAnsiPath, ppidl);
 585     if (result && pdwAttributes && *pdwAttributes)
 586     {
 587         /* need to traverse to the last element for the attribute */
 588         LPCITEMIDLIST pidl, last_pidl;
 589         pidl = last_pidl = *ppidl;
 590         while(pidl && pidl->mkid.cb)
 591         {
 592             last_pidl = pidl;
 593             pidl = ILGetNext(pidl);
 594         }
 595         SHELL32_GetItemAttributes((IShellFolder*)iface, last_pidl, pdwAttributes);
 596     }
 597
 598     SHFree(pszAnsiPath);
 599
 600     if (!result) TRACE("FAILED!\n");
 601
 602     return result ? S_OK : E_FAIL;
 603 }
 604
 605 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 606
 607 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 608     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 609 {
 610     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 611     IUnknown *newIterator;
 612     HRESULT hr;
 613
 614     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 615             iface, hwndOwner, grfFlags, ppEnumIDList);
 616
 617     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 618     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 619     IUnknown_Release(newIterator);
 620
 621     return hr;
 622 }
 623
 624 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 625     LPBC pbcReserved, REFIID riid, void** ppvOut)
 626 {
 627     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 628     IPersistFolder2 *persistFolder;
 629     LPITEMIDLIST pidlSubFolder;
 630     HRESULT hr;
 631
 632     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 633             iface, pidl, pbcReserved, riid, ppvOut);
 634
 635     hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 636     if (!SUCCEEDED(hr)) return hr;
 637     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 638
 639     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 640     IPersistFolder2_Initialize(persistFolder, pidlSubFolder);
 641     IPersistFolder2_Release(persistFolder);
 642     ILFree(pidlSubFolder);
 643
 644     return hr;
 645 }
 646
 647 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 648     LPBC pbcReserved, REFIID riid, void** ppvObj)
 649 {
 650     TRACE("stub\n");
 651     return E_NOTIMPL;
 652 }
 653
 654 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 655     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 656 {
 657     BOOL isEmpty1, isEmpty2;
 658     HRESULT hr = E_FAIL;
 659     LPITEMIDLIST firstpidl;
 660     IShellFolder2 *psf;
 661     int compare;
 662
 663     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 664
 665     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 666     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 667
 668     if (isEmpty1 && isEmpty2)
 669         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 670     else if (isEmpty1)
 671         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 672     else if (isEmpty2)
 673         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 674
 675     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 676         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 677     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 678         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 679
 680     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 681                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 682                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 683
 684     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 685         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)(compare == CSTR_LESS_THAN)?-1:1);
 686
 687     if (pidl1->mkid.cb < pidl2->mkid.cb)
 688         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 689     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 690         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 691
 692     firstpidl = ILCloneFirst(pidl1);
 693     pidl1 = ILGetNext(pidl1);
 694     pidl2 = ILGetNext(pidl2);
 695
 696     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 697     if (SUCCEEDED(hr)) {
 698         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 699         IShellFolder2_Release(psf);
 700     }
 701
 702     ILFree(firstpidl);
 703     return hr;
 704 }
 705
 706 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 707     REFIID riid, void** ppv)
 708 {
 709     HRESULT hr = E_INVALIDARG;
 710
 711     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 712
 713     if (!ppv) return E_INVALIDARG;
 714     *ppv = NULL;
 715
 716     if (IsEqualIID(&IID_IShellView, riid)) {
 717         LPSHELLVIEW pShellView;
 718
 719         pShellView = IShellView_Constructor((IShellFolder*)iface);
 720         if (pShellView) {
 721             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 722             IShellView_Release(pShellView);
 723         }
 724     }
 725
 726     return hr;
 727 }
 728
 729 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 730     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 731 {
 732     UINT i;
 733     SFGAOF flags= ~(SFGAOF)0;
 734
 735     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p) semi-stub\n", iface, cidl, apidl, rgfInOut);
 736
 737     for (i=0; i<cidl; i++) {
 738         LPPIDLDATA pData = _ILGetDataPointer(apidl[i]);
 739         if (!pData) continue;
 740         if (pData->type == PT_FOLDER) flags &= (SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_HASSUBFOLDER);
 741         if (pData->type == PT_VALUE) flags &= SFGAO_FILESYSTEM;
 742     }
 743
 744     *rgfInOut = *rgfInOut & flags;
 745
 746     return S_OK;
 747 }
 748
 749 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 750     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 751 {
 752     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 753
 754     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 755         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 756
 757     if (IsEqualIID(&IID_IContextMenu, riid)) {
 758         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 759         return S_OK;
 760     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 761         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 762         return S_OK;
 763     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 764         FIXME("IExtractIconA\n");
 765         return E_FAIL;
 766     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 767         if (cidl != 1) return E_FAIL;
 768         if (_ILIsFolder(apidl[0]))
 769             *ppvOut = &UnixFolderIconSingleton;
 770         else
 771             *ppvOut = &UnixDocumentIconSingleton;
 772         return S_OK;
 773     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 774         FIXME("IDropTarget\n");
 775         return E_FAIL;
 776     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 777         FIXME("IShellLinkW\n");
 778         return E_FAIL;
 779     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
 780         FIXME("IShellLinkA\n");
 781         return E_FAIL;
 782     } else {
 783         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
 784         return E_NOINTERFACE;
 785     }
 786 }
 787
 788 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
 789     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
 790 {
 791     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 792     HRESULT hr = S_OK;
 793
 794     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
 795
 796     if ((GET_SHGDN_FOR(uFlags) == SHGDN_FORPARSING) &&
 797         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
 798     {
 799         if (!pidl->mkid.cb) {
 800             lpName->uType = STRRET_CSTR;
 801             strcpy(lpName->u.cStr, This->m_pszPath);
 802         } else {
 803             IShellFolder *pSubFolder;
 804             USHORT emptyIDL = 0;
 805
 806             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
 807             if (!SUCCEEDED(hr)) return hr;
 808
 809             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
 810             IShellFolder_Release(pSubFolder);
 811         }
 812     } else {
 813         char *pszFileName = _ILGetTextPointer(pidl);
 814         lpName->uType = STRRET_CSTR;
 815         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
 816     }
 817
 818     return hr;
 819 }
 820
 821 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* This, HWND hwnd,
 822     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
 823 {
 824     TRACE("stub\n");
 825     return E_NOTIMPL;
 826 }
 827
 828 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
 829     IEnumExtraSearch **ppEnum)
 830 {
 831     TRACE("stub\n");
 832     return E_NOTIMPL;
 833 }
 834
 835 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
 836     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
 837 {
 838     TRACE("stub\n");
 839     return E_NOTIMPL;
 840 }
 841
 842 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
 843     UINT iColumn, SHCOLSTATEF *pcsFlags)
 844 {
 845     TRACE("stub\n");
 846     return E_NOTIMPL;
 847 }
 848
 849 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
 850     GUID *pguid)
 851 {
 852     TRACE("stub\n");
 853     return E_NOTIMPL;
 854 }
 855
 856 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
 857     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
 858 {
 859     TRACE("stub\n");
 860     return E_NOTIMPL;
 861 }
 862
 863 #define SHELLVIEWCOLUMNS 6
 864
 865 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
 866     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
 867 {
 868     HRESULT hr = E_FAIL;
 869     struct passwd *pPasswd;
 870     struct group *pGroup;
 871     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
 872         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
 873         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
 874         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
 875         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
 876         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
 877         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
 878     };
 879
 880     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
 881
 882     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
 883         return E_INVALIDARG;
 884
 885     if (!pidl) {
 886         psd->fmt = SFHeader[iColumn].fmt;
 887         psd->cxChar = SFHeader[iColumn].cxChar;
 888         psd->str.uType = STRRET_CSTR;
 889         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
 890         return S_OK;
 891     } else {
 892         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
 893         psd->str.u.cStr[0] = '\0';
 894         psd->str.uType = STRRET_CSTR;
 895         switch (iColumn) {
 896             case 0:
 897                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
 898                 break;
 899             case 1:
 900                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
 901                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
 902                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
 903                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
 904                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
 905                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
 906                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
 907                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
 908                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
 909                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
 910                 psd->str.u.cStr[10] = '\0';
 911                 break;
 912             case 2:
 913                 pPasswd = getpwuid(pStatStruct->st_uid);
 914                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
 915                 break;
 916             case 3:
 917                 pGroup = getgrgid(pStatStruct->st_gid);
 918                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
 919                 break;
 920             case 4:
 921                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
 922                 break;
 923             case 5:
 924                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
 925                 break;
 926         }
 927     }
 928
 929     return hr;
 930 }
 931
 932 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
 933     SHCOLUMNID *pscid)
 934 {
 935     TRACE("stub\n");
 936     return E_NOTIMPL;
 937 }
 938
 939 /* VTable for UnixFolder's IShellFolder2 interface.
 940  */
 941 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
 942     UnixFolder_IShellFolder2_QueryInterface,
 943     UnixFolder_IShellFolder2_AddRef,
 944     UnixFolder_IShellFolder2_Release,
 945     UnixFolder_IShellFolder2_ParseDisplayName,
 946     UnixFolder_IShellFolder2_EnumObjects,
 947     UnixFolder_IShellFolder2_BindToObject,
 948     UnixFolder_IShellFolder2_BindToStorage,
 949     UnixFolder_IShellFolder2_CompareIDs,
 950     UnixFolder_IShellFolder2_CreateViewObject,
 951     UnixFolder_IShellFolder2_GetAttributesOf,
 952     UnixFolder_IShellFolder2_GetUIObjectOf,
 953     UnixFolder_IShellFolder2_GetDisplayNameOf,
 954     UnixFolder_IShellFolder2_SetNameOf,
 955     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
 956     UnixFolder_IShellFolder2_EnumSearches,
 957     UnixFolder_IShellFolder2_GetDefaultColumn,
 958     UnixFolder_IShellFolder2_GetDefaultColumnState,
 959     UnixFolder_IShellFolder2_GetDetailsEx,
 960     UnixFolder_IShellFolder2_GetDetailsOf,
 961     UnixFolder_IShellFolder2_MapColumnToSCID
 962 };
 963
 964 static HRESULT WINAPI UnixFolder_IPersistFolder2_QueryInterface(IPersistFolder2* This, REFIID riid,
 965     void** ppvObject)
 966 {
 967     return UnixFolder_IShellFolder2_QueryInterface(
 968                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This), riid, ppvObject);
 969 }
 970
 971 static ULONG WINAPI UnixFolder_IPersistFolder2_AddRef(IPersistFolder2* This)
 972 {
 973     return UnixFolder_IShellFolder2_AddRef(
 974                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
 975 }
 976
 977 static ULONG WINAPI UnixFolder_IPersistFolder2_Release(IPersistFolder2* This)
 978 {
 979     return UnixFolder_IShellFolder2_Release(
 980                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
 981 }
 982
 983 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetClassID(IPersistFolder2* This, CLSID* pClassID)
 984 {
 985     TRACE("stub\n");
 986     return E_NOTIMPL;
 987 }
 988
 989 static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* iface, LPCITEMIDLIST pidl)
 990 {
 991     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
 992
 993     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
 994
 995     This->m_pidlLocation = ILClone(pidl);
 996     UNIXFS_pidl_to_path(pidl, &This->m_pszPath);
 997     UNIXFS_build_subfolder_pidls(This->m_pszPath, &This->m_apidlSubDirs, &This->m_cSubDirs);
 998
 999     return S_OK;
1000 }
1001
1002 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetCurFolder(IPersistFolder2* iface, LPITEMIDLIST* ppidl)
1003 {
1004     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1005     TRACE ("(%p)->(%p)\n", This, ppidl);
1006
1007     if (!ppidl)
1008         return E_POINTER;
1009     *ppidl = ILClone (This->m_pidlLocation);
1010     return S_OK;
1011 }
1012
1013 /* VTable for UnixFolder's IPersistFolder interface.
1014  */
1015 static const IPersistFolder2Vtbl UnixFolder_IPersistFolder2_Vtbl = {
1016     UnixFolder_IPersistFolder2_QueryInterface,
1017     UnixFolder_IPersistFolder2_AddRef,
1018     UnixFolder_IPersistFolder2_Release,
1019     UnixFolder_IPersistFolder2_GetClassID,
1020     UnixFolder_IPersistFolder2_Initialize,
1021     UnixFolder_IPersistFolder2_GetCurFolder
1022 };
1023
1024 /******************************************************************************
1025  * UnixFolder_Constructor [Internal]
1026  *
1027  * PARAMS
1028  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
1029  *  riid      [I] Interface asked for by the client.
1030  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
1031  *
1032  * NOTES
1033  *  This is the only function exported from shfldr_unixfs.c. It's called from
1034  *  shellole.c's default class factory and thus has to exhibit a LPFNCREATEINSTANCE
1035  *  compatible signature.
1036  */
1037 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1038     HRESULT hr;
1039     UnixFolder *pUnixFolder;
1040
1041     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1042
1043     pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
1044     pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
1045     pUnixFolder->lpIPersistFolder2Vtbl = &UnixFolder_IPersistFolder2_Vtbl;
1046     pUnixFolder->m_cRef = 0;
1047     pUnixFolder->m_pszPath = NULL;
1048     pUnixFolder->m_apidlSubDirs = NULL;
1049     pUnixFolder->m_cSubDirs = 0;
1050
1051     UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
1052     hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1053     UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1054     return hr;
1055 }
1056
1057 /******************************************************************************
1058  * UnixSubFolderIterator
1059  *
1060  * Class whose heap based objects represent iterators over the sub-directories
1061  * of a given UnixFolder object.
1062  */
1063
1064 /* UnixSubFolderIterator object layout and typedef.
1065  */
1066 typedef struct _UnixSubFolderIterator {
1067     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1068     ULONG m_cRef;
1069     UnixFolder *m_pUnixFolder;
1070     ULONG m_cIdx;
1071     SHCONTF m_fFilter;
1072 } UnixSubFolderIterator;
1073
1074 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1075     TRACE("(iterator=%p)\n", iterator);
1076
1077     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1078     SHFree(iterator);
1079 }
1080
1081 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1082     REFIID riid, void** ppv)
1083 {
1084     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1085
1086     if (!ppv) return E_INVALIDARG;
1087
1088     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1089         *ppv = iface;
1090     } else {
1091         *ppv = NULL;
1092         return E_NOINTERFACE;
1093     }
1094
1095     IEnumIDList_AddRef(iface);
1096     return S_OK;
1097 }
1098
1099 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1100 {
1101     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1102
1103     TRACE("(iface=%p)\n", iface);
1104
1105     return InterlockedIncrement(&This->m_cRef);
1106 }
1107
1108 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1109 {
1110     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1111     ULONG cRef;
1112
1113     TRACE("(iface=%p)\n", iface);
1114
1115     cRef = InterlockedDecrement(&This->m_cRef);
1116
1117     if (!cRef)
1118         UnixSubFolderIterator_Destroy(This);
1119
1120     return cRef;
1121 }
1122
1123 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1124     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1125 {
1126     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1127     ULONG i;
1128
1129     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1130
1131     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1132         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1133         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1134             rgelt[i] = ILClone(pCurrent);
1135             i++;
1136         }
1137     }
1138
1139     if (pceltFetched)
1140         *pceltFetched = i;
1141
1142     return i == celt ? S_OK : S_FALSE;
1143 }
1144
1145 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1146 {
1147     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1148     ULONG i;
1149
1150     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1151
1152     for (i=0; i < celt; i++) {
1153         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1154                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1155         {
1156             This->m_cIdx++;
1157         }
1158         This->m_cIdx++;
1159     }
1160
1161     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1162         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1163         return S_FALSE;
1164     } else {
1165         return S_OK;
1166     }
1167 }
1168
1169 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1170 {
1171     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1172
1173     TRACE("(iface=%p)\n", iface);
1174
1175     This->m_cIdx = 0;
1176
1177     return S_OK;
1178 }
1179
1180 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1181     IEnumIDList** ppenum)
1182 {
1183     TRACE("stub\n");
1184     return E_NOTIMPL;
1185 }
1186
1187 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1188  */
1189 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1190     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1191     UnixSubFolderIterator_IEnumIDList_AddRef,
1192     UnixSubFolderIterator_IEnumIDList_Release,
1193     UnixSubFolderIterator_IEnumIDList_Next,
1194     UnixSubFolderIterator_IEnumIDList_Skip,
1195     UnixSubFolderIterator_IEnumIDList_Reset,
1196     UnixSubFolderIterator_IEnumIDList_Clone
1197 };
1198
1199 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1200     UnixSubFolderIterator *iterator;
1201
1202     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1203
1204     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1205     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1206     iterator->m_cRef = 0;
1207     iterator->m_cIdx = 0;
1208     iterator->m_pUnixFolder = pUnixFolder;
1209     iterator->m_fFilter = fFilter;
1210
1211     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1212     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1213
1214     return (IUnknown*)iterator;
1215 }