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_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #ifdef HAVE_SYS_STAT_H
  30 # include <sys/stat.h>
  31 #endif
  32 #ifdef HAVE_PWD_H
  33 # include <pwd.h>
  34 #endif
  35 #include <grp.h>
  36 #include <limits.h>
  37
  38 #define COBJMACROS
  39 #define NONAMELESSUNION
  40 #define NONAMELESSSTRUCT
  41
  42 #include "windef.h"
  43 #include "winbase.h"
  44 #include "winuser.h"
  45 #include "objbase.h"
  46 #include "winreg.h"
  47 #include "shlwapi.h"
  48 #include "winternl.h"
  49 #include "wine/debug.h"
  50
  51 #include "shell32_main.h"
  52 #include "shfldr.h"
  53 #include "shresdef.h"
  54 #include "pidl.h"
  55
  56 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  57
  58 const GUID CLSID_UnixFolder = {0xcc702eb2, 0x7dc5, 0x11d9, {0xc6, 0x87, 0x00, 0x04, 0x23, 0x8a, 0x01, 0xcd}};
  59 const GUID CLSID_UnixDosFolder = {0x9d20aae8, 0x0625, 0x44b0, {0x9c, 0xa7, 0x71, 0x88, 0x9c, 0x22, 0x54, 0xd9}};
  60
  61 #define ADJUST_THIS(c,m,p) ((c*)(((long)p)-(long)&(((c*)0)->lp##m##Vtbl)))
  62 #define STATIC_CAST(i,p) ((i*)&p->lp##i##Vtbl)
  63
  64 /* FileStruct reserves one byte for szNames, thus we don't have to
  65  * alloc a byte for the terminating '\0' of 'name'. Two of the
  66  * additional bytes are for SHITEMID's cb field. One is for IDLDATA's
  67  * type field. One is for FileStruct's szNames field, to terminate
  68  * the alternate DOS name, which we don't use here. And then there's
  69  * the additional StatStruct.
  70  */
  71 #define SHITEMID_LEN_FROM_NAME_LEN(n) \
  72     (sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
  73 #define NAME_LEN_FROM_LPSHITEMID(s) \
  74     (((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
  75 #define LPSTATSTRUCT_FROM_LPSHITEMID(s) \
  76     (((s) && (((LPSHITEMID)s)->cb > SHITEMID_LEN_FROM_NAME_LEN(0))) ? \
  77      ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct))) : \
  78      (NULL))
  79
  80 #define PATHMODE_UNIX 0
  81 #define PATHMODE_DOS  1
  82
  83 /* ShellFolder attributes of the root folder ('/') */
  84 static DWORD dwRootAttr = 0;
  85
  86 /* This structure is appended to shell32's FileStruct type in IDLs to store unix
  87  * filesystem specific informationen extracted with the stat system call.
  88  */
  89 typedef struct tagStatStruct {
  90     mode_t st_mode;
  91     uid_t  st_uid;
  92     gid_t  st_gid;
  93     SFGAOF sfAttr;
  94 } StatStruct;
  95
  96 /* UnixFolder object layout and typedef.
  97  */
  98 typedef struct _UnixFolder {
  99     const IShellFolder2Vtbl  *lpIShellFolder2Vtbl;
 100     const IPersistFolder2Vtbl *lpIPersistFolder2Vtbl;
 101     ULONG m_cRef;
 102     CHAR *m_pszPath;
 103     LPITEMIDLIST m_pidlLocation;
 104     LPITEMIDLIST *m_apidlSubDirs;
 105     DWORD m_cSubDirs;
 106     DWORD m_dwPathMode;
 107 } UnixFolder;
 108
 109 /******************************************************************************
 110  * UNIXFS_is_pidl_of_type [INTERNAL]
 111  *
 112  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
 113  *
 114  * PARAMS
 115  *  pIDL    [I] The ITEMIDLIST to be checked.
 116  *  fFilter [I] Shell condition flags, which specify the filter.
 117  *
 118  * RETURNS
 119  *  TRUE, if pIDL is accepted by fFilter
 120  *  FALSE, otherwise
 121  */
 122 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
 123     LPPIDLDATA pIDLData = _ILGetDataPointer(pIDL);
 124     if (!(fFilter & SHCONTF_INCLUDEHIDDEN) && pIDLData &&
 125         (pIDLData->u.file.uFileAttribs & FILE_ATTRIBUTE_HIDDEN))
 126     {
 127         return FALSE;
 128     }
 129     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
 130     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
 131     return FALSE;
 132 }
 133
 134 /******************************************************************************
 135  * UNIXFS_is_dos_device [Internal]
 136  *
 137  * Determines if a unix directory corresponds to any dos device.
 138  *
 139  * PARAMS
 140  *  statPath [I] The stat struct of the directory, as returned by stat(2).
 141  *
 142  * RETURNS
 143  *  TRUE, if statPath corresponds to any dos drive letter
 144  *  FALSE, otherwise
 145  */
 146 static BOOL UNIXFS_is_dos_device(const struct stat *statPath) {
 147     struct stat statDrive;
 148     char *pszDrivePath;
 149     DWORD dwDriveMap;
 150     WCHAR wszDosDevice[4] = { 'A', ':', '\\', 0 };
 151
 152     for (dwDriveMap = GetLogicalDrives(); dwDriveMap; dwDriveMap >>= 1, wszDosDevice[0]++) {
 153         if (!(dwDriveMap & 0x1)) continue;
 154         pszDrivePath = wine_get_unix_file_name(wszDosDevice);
 155         if (pszDrivePath && !stat(pszDrivePath, &statDrive)) {
 156             HeapFree(GetProcessHeap(), 0, pszDrivePath);
 157             if ((statPath->st_dev == statDrive.st_dev) && (statPath->st_ino == statDrive.st_ino))
 158                 return TRUE;
 159         }
 160     }
 161     return FALSE;
 162 }
 163
 164 /******************************************************************************
 165  * UNIXFS_get_unix_path [Internal]
 166  *
 167  * Convert an absolute dos path to an absolute canonicalized unix path.
 168  * Evaluate "/.", "/.." and symbolic links.
 169  *
 170  * PARAMS
 171  *  pszDosPath       [I] An absolute dos path
 172  *  pszCanonicalPath [O] Buffer of length FILENAME_MAX. Will receive the canonical path.
 173  *
 174  * RETURNS
 175  *  Success, TRUE
 176  *  Failure, FALSE - Path not existent, too long, insufficient rights, to many symlinks
 177  */
 178 static BOOL UNIXFS_get_unix_path(LPCWSTR pszDosPath, char *pszCanonicalPath)
 179 {
 180     char *pPathTail, *pElement, *pCanonicalTail, szPath[FILENAME_MAX], *pszUnixPath;
 181     struct stat fileStat;
 182
 183     TRACE("(pszDosPath=%s, pszCanonicalPath=%p)\n", debugstr_w(pszDosPath), pszCanonicalPath);
 184
 185     if (!pszDosPath || pszDosPath[1] != ':')
 186         return FALSE;
 187
 188     pszUnixPath = wine_get_unix_file_name(pszDosPath);
 189     if (!pszUnixPath) return FALSE;
 190     strcpy(szPath, pszUnixPath);
 191     HeapFree(GetProcessHeap(), 0, pszUnixPath);
 192
 193     /* pCanonicalTail always points to the end of the canonical path constructed
 194      * thus far. pPathTail points to the still to be processed part of the input
 195      * path. pElement points to the path element currently investigated.
 196      */
 197     *pszCanonicalPath = '\0';
 198     pCanonicalTail = pszCanonicalPath;
 199     pPathTail = szPath;
 200
 201     do {
 202         char cTemp;
 203         int cLinks = 0;
 204
 205         pElement = pPathTail;
 206         pPathTail = strchr(pPathTail+1, '/');
 207         if (!pPathTail) /* Last path element may not be terminated by '/'. */
 208             pPathTail = pElement + strlen(pElement);
 209         /* Temporarily terminate the current path element. Will be restored later. */
 210         cTemp = *pPathTail;
 211         *pPathTail = '\0';
 212
 213         /* Skip "/." path elements */
 214         if (!strcmp("/.", pElement)) {
 215             *pPathTail = cTemp;
 216             continue;
 217         }
 218
 219         /* Remove last element in canonical path for "/.." elements, then skip. */
 220         if (!strcmp("/..", pElement)) {
 221             char *pTemp = strrchr(pszCanonicalPath, '/');
 222             if (pTemp)
 223                 pCanonicalTail = pTemp;
 224             *pCanonicalTail = '\0';
 225             *pPathTail = cTemp;
 226             continue;
 227         }
 228
 229         /* lstat returns zero on success. */
 230         if (lstat(szPath, &fileStat))
 231             return FALSE;
 232
 233         if (S_ISLNK(fileStat.st_mode)) {
 234             char szSymlink[FILENAME_MAX];
 235             int cLinkLen, cTailLen;
 236
 237             /* Avoid infinite loop for recursive links. */
 238             if (++cLinks > 64)
 239                 return FALSE;
 240
 241             cLinkLen = readlink(szPath, szSymlink, FILENAME_MAX);
 242             if (cLinkLen < 0)
 243                 return FALSE;
 244
 245             *pPathTail = cTemp;
 246             cTailLen = strlen(pPathTail);
 247
 248             if (szSymlink[0] == '/') {
 249                 /* Absolute link. Copy to szPath, concat remaining path and start all over. */
 250                 if (cLinkLen + cTailLen + 1 > FILENAME_MAX)
 251                     return FALSE;
 252
 253                 memcpy(szSymlink + cLinkLen, pPathTail, cTailLen + 1);
 254                 memcpy(szPath, szSymlink, cLinkLen + cTailLen + 1);
 255                 *pszCanonicalPath = '\0';
 256                     pCanonicalTail = pszCanonicalPath;
 257                     pPathTail = szPath;
 258             } else {
 259                 /* Relative link. Expand into szPath and continue. */
 260                 char szTemp[FILENAME_MAX];
 261                 int cTailLen = strlen(pPathTail);
 262
 263                 if (pElement - szPath + 1 + cLinkLen + cTailLen + 1 > FILENAME_MAX)
 264                     return FALSE;
 265
 266                 memcpy(szTemp, pPathTail, cTailLen + 1);
 267                 memcpy(pElement + 1, szSymlink, cLinkLen);
 268                 memcpy(pElement + 1 + cLinkLen, szTemp, cTailLen + 1);
 269                 pPathTail = pElement;
 270             }
 271         } else {
 272             /* Regular directory or file. Copy to canonical path */
 273             if (pCanonicalTail - pszCanonicalPath + pPathTail - pElement + 1 > FILENAME_MAX)
 274                 return FALSE;
 275
 276             memcpy(pCanonicalTail, pElement, pPathTail - pElement + 1);
 277             pCanonicalTail += pPathTail - pElement;
 278             *pPathTail = cTemp;
 279         }
 280     } while (pPathTail[0] == '/' && pPathTail[1]); /* Also handles paths terminated by '/' */
 281
 282     TRACE("--> %s\n", debugstr_a(pszCanonicalPath));
 283
 284     return TRUE;
 285 }
 286
 287 /******************************************************************************
 288  * UNIXFS_build_shitemid [Internal]
 289  *
 290  * Constructs a new SHITEMID for the last component of path 'pszUnixPath' into
 291  * buffer 'pIDL'. Decorates the SHITEMID with information from a stat system call.
 292  *
 293  * PARAMS
 294  *  pszUnixPath [I] An absolute path. The SHITEMID will be build for the last component.
 295  *  bParentIsFS [I] Set, if the parent of the last path component is within the wine filesystem.
 296  *  pIDL        [O] SHITEMID will be constructed here.
 297  *
 298  * RETURNS
 299  *  Success: A pointer to the terminating '\0' character of path.
 300  *  Failure: NULL
 301  *
 302  * NOTES
 303  *  Minimum size of pIDL is SHITEMID_LEN_FROM_NAME_LEN(strlen(last_component_of_path)).
 304  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 305  *  a 0 USHORT value.
 306  */
 307 static char* UNIXFS_build_shitemid(char *pszUnixPath, BOOL bParentIsFS, void *pIDL) {
 308     LARGE_INTEGER time;
 309     FILETIME fileTime;
 310     LPPIDLDATA pIDLData;
 311     struct stat fileStat;
 312     StatStruct *pStatStruct;
 313     char *pszComponent;
 314     int cComponentLen;
 315
 316     TRACE("(pszUnixPath=%s, pIDL=%p)\n", debugstr_a(pszUnixPath), pIDL);
 317
 318     /* Compute the SHITEMID's length and wipe it. */
 319     pszComponent = strrchr(pszUnixPath, '/') + 1;
 320     cComponentLen = strlen(pszComponent);
 321     memset(pIDL, 0, SHITEMID_LEN_FROM_NAME_LEN(cComponentLen));
 322     ((LPSHITEMID)pIDL)->cb = SHITEMID_LEN_FROM_NAME_LEN(cComponentLen) ;
 323
 324     /* We are only interested in regular files and directories. */
 325     if (stat(pszUnixPath, &fileStat)) return NULL;
 326     if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) return NULL;
 327
 328     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pIDL);
 329     pStatStruct->st_mode = fileStat.st_mode;
 330     pStatStruct->st_uid = fileStat.st_uid;
 331     pStatStruct->st_gid = fileStat.st_gid;
 332     pStatStruct->sfAttr = S_ISDIR(fileStat.st_mode) ? (SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR) : 0;
 333     if (bParentIsFS || UNIXFS_is_dos_device(&fileStat)) pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
 334
 335     /* Set shell32's standard SHITEMID data fields. */
 336     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)pIDL);
 337     pIDLData->type = S_ISDIR(fileStat.st_mode) ? PT_FOLDER : PT_VALUE;
 338     pIDLData->u.file.dwFileSize = (DWORD)fileStat.st_size;
 339     RtlSecondsSince1970ToTime( fileStat.st_mtime, &time );
 340     fileTime.dwLowDateTime = time.u.LowPart;
 341     fileTime.dwHighDateTime = time.u.HighPart;
 342     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 343     pIDLData->u.file.uFileAttribs = 0;
 344     if (S_ISDIR(fileStat.st_mode)) pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
 345     if (pszComponent[0] == '.') pIDLData->u.file.uFileAttribs |=  FILE_ATTRIBUTE_HIDDEN;
 346     memcpy(pIDLData->u.file.szNames, pszComponent, cComponentLen);
 347
 348     return pszComponent + cComponentLen;
 349 }
 350
 351 /******************************************************************************
 352  * UNIXFS_path_to_pidl [Internal]
 353  *
 354  * PARAMS
 355  *  pUnixFolder [I] If path is relative, pUnixFolder represents the base path
 356  *  path        [I] An absolute unix or dos path or a path relativ to pUnixFolder
 357  *  ppidl       [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 358  *
 359  * RETURNS
 360  *  Success: TRUE
 361  *  Failure: FALSE, invalid params or out of memory
 362  *
 363  * NOTES
 364  *  pUnixFolder also carries the information if the path is expected to be unix or dos.
 365  */
 366 static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPITEMIDLIST *ppidl) {
 367     LPITEMIDLIST pidl;
 368     int cSubDirs, cPidlLen, cPathLen;
 369     char *pSlash, szCompletePath[FILENAME_MAX], *pNextPathElement;
 370     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 371
 372     TRACE("pUnixFolder=%p, path=%s, ppidl=%p\n", pUnixFolder, debugstr_w(path), ppidl);
 373
 374     if (!ppidl || !path)
 375         return FALSE;
 376
 377     cPathLen = lstrlenW(path);
 378
 379     /* Build an absolute path and let pNextPathElement point to the interesting
 380      * relative sub-path. We need the absolute path to call 'stat', but the pidl
 381      * will only contain the relative part.
 382      */
 383     if ((pUnixFolder->m_dwPathMode == PATHMODE_DOS) && (path[1] == ':'))
 384     {
 385         /* Absolute dos path. Convert to unix */
 386         if (!UNIXFS_get_unix_path(path, szCompletePath))
 387             return FALSE;
 388         pNextPathElement = szCompletePath + 1;
 389     }
 390     else if ((pUnixFolder->m_dwPathMode == PATHMODE_UNIX) && (path[0] == '/'))
 391     {
 392         /* Absolute unix path. Just convert to ANSI. */
 393         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath, FILENAME_MAX, NULL, NULL);
 394         pNextPathElement = szCompletePath + 1;
 395     }
 396     else
 397     {
 398         /* Relative dos or unix path. Concat with this folder's path */
 399         int cBasePathLen = strlen(pUnixFolder->m_pszPath);
 400         memcpy(szCompletePath, pUnixFolder->m_pszPath, cBasePathLen);
 401         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath + cBasePathLen,
 402                             FILENAME_MAX - cBasePathLen, NULL, NULL);
 403         pNextPathElement = szCompletePath + cBasePathLen;
 404
 405         /* If in dos mode, replace '\' with '/' */
 406         if (pUnixFolder->m_dwPathMode == PATHMODE_DOS) {
 407             char *pBackslash = strchr(pNextPathElement, '\\');
 408             while (pBackslash) {
 409                 *pBackslash = '/';
 410                 pBackslash = strchr(pBackslash, '\\');
 411             }
 412         }
 413     }
 414
 415     /* At this point, we have an absolute unix path in szCompletePath. */
 416     TRACE("complete path: %s\n", szCompletePath);
 417
 418     /* Count the number of sub-directories in the path */
 419     cSubDirs = 1; /* Path may not be terminated with '/', thus start with 1 */
 420     pSlash = strchr(pNextPathElement, '/');
 421     while (pSlash && pSlash[1]) {
 422         cSubDirs++;
 423         pSlash = strchr(pSlash+1, '/');
 424     }
 425
 426     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 427      * characters, which are not stored in the ITEMIDLIST. */
 428     cPidlLen = strlen(pNextPathElement) - cSubDirs + 1 + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 429     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 430     if (!pidl) return FALSE;
 431
 432     /* Concatenate the SHITEMIDs of the sub-directories. */
 433     while (*pNextPathElement) {
 434         pSlash = strchr(pNextPathElement, '/');
 435         if (pSlash) *pSlash = '\0';
 436         pNextPathElement = UNIXFS_build_shitemid(szCompletePath, bParentIsFS, pidl);
 437         if (pSlash) *pSlash = '/';
 438
 439         if (!pNextPathElement) {
 440             SHFree(pidl);
 441             return FALSE;
 442         }
 443         if (!bParentIsFS && (LPSTATSTRUCT_FROM_LPSHITEMID(pidl)->sfAttr & SFGAO_FILESYSTEM))
 444             bParentIsFS = TRUE;
 445         pidl = ILGetNext(pidl);
 446     }
 447     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 448
 449     if ((int)pidl-(int)*ppidl+sizeof(USHORT) > cPidlLen) /* We've corrupted the heap :( */
 450         ERR("Computed length of pidl to small. Please report.\n");
 451
 452     return TRUE;
 453 }
 454
 455 /******************************************************************************
 456  * UNIXFS_pidl_to_path [Internal]
 457  *
 458  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 459  *
 460  * PARAMS
 461  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 462  *  path [O] The corresponding unix path as a zero terminated ascii string
 463  *
 464  * RETURNS
 465  *  Success: TRUE
 466  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 467  */
 468 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, UnixFolder *pUnixFolder) {
 469     LPCITEMIDLIST current = pidl, root;
 470     DWORD dwPathLen;
 471     char *pNextDir, szBasePath[FILENAME_MAX] = "/";
 472
 473     TRACE("(pidl=%p, pUnixFolder=%p)\n", pidl, pUnixFolder);
 474     pdump(pidl);
 475
 476     pUnixFolder->m_pszPath = NULL;
 477
 478     /* Find the UnixFolderClass root */
 479     while (current->mkid.cb) {
 480         if (_ILIsDrive(current) || /* The dos drive, which maps to '/' */
 481             (_ILIsSpecialFolder(current) &&
 482              (IsEqualIID(&CLSID_UnixFolder, _ILGetGUIDPointer(current)) ||
 483               IsEqualIID(&CLSID_UnixDosFolder, _ILGetGUIDPointer(current)))))
 484         {
 485             break;
 486         }
 487         current = ILGetNext(current);
 488     }
 489
 490     if (current && current->mkid.cb) {
 491         root = current = ILGetNext(current);
 492         dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 493     } else if (_ILIsDesktop(pidl) || _ILIsValue(pidl) || _ILIsFolder(pidl)) {
 494         /* Path rooted at Desktop */
 495         WCHAR wszDesktopPath[MAX_PATH];
 496         if (FAILED(SHGetSpecialFolderPathW(0, wszDesktopPath, CSIDL_DESKTOP, FALSE)))
 497            return FALSE;
 498         if (!UNIXFS_get_unix_path(wszDesktopPath, szBasePath))
 499             return FALSE;
 500         dwPathLen = strlen(szBasePath) + 1;
 501         root = current;
 502     } else {
 503         ERR("Unknown pidl type!\n");
 504         pdump(pidl);
 505         return FALSE;
 506     }
 507
 508     /* Determine the path's length bytes */
 509     while (current && current->mkid.cb) {
 510         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 511         current = ILGetNext(current);
 512     };
 513
 514     /* Build the path */
 515     pUnixFolder->m_pszPath = pNextDir = SHAlloc(dwPathLen);
 516     if (!pUnixFolder->m_pszPath) {
 517         WARN("SHAlloc failed!\n");
 518         return FALSE;
 519     }
 520     current = root;
 521     strcpy(pNextDir, szBasePath);
 522     pNextDir += strlen(szBasePath);
 523     while (current && current->mkid.cb) {
 524         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 525         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 526         *pNextDir++ = '/';
 527         current = ILGetNext(current);
 528     }
 529     *pNextDir='\0';
 530
 531     TRACE("--> %s\n", pUnixFolder->m_pszPath);
 532     return TRUE;
 533 }
 534
 535 /******************************************************************************
 536  * UNIXFS_build_subfolder_pidls [Internal]
 537  *
 538  * Builds an array of subfolder PIDLs relative to a unix directory
 539  *
 540  * PARAMS
 541  *  path   [I] Name of a unix directory as a zero terminated ascii string
 542  *  apidl  [O] The array of PIDLs
 543  *  pCount [O] Size of apidl
 544  *
 545  * RETURNS
 546  *  Success: TRUE
 547  *  Failure: FALSE, path is not a valid unix directory or out of memory
 548  *
 549  * NOTES
 550  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 551  *  to release each PIDL as well as the array itself with SHFree.
 552  */
 553 static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
 554 {
 555     struct dirent *pDirEntry;
 556     struct stat fileStat;
 557     DIR *dir;
 558     DWORD cDirEntries, i;
 559     USHORT sLen;
 560     char *pszFQPath;
 561     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 562
 563     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 564
 565     pUnixFolder->m_apidlSubDirs = NULL;
 566     pUnixFolder->m_cSubDirs = 0;
 567
 568     if (pUnixFolder->m_pidlLocation) {
 569         StatStruct *statStruct =
 570             LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(pUnixFolder->m_pidlLocation));
 571         if (statStruct) bParentIsFS = statStruct->sfAttr & SFGAO_FILESYSTEM;
 572     }
 573
 574     dir = opendir(pUnixFolder->m_pszPath);
 575     if (!dir) {
 576         WARN("Failed to open directory '%s'.\n", pUnixFolder->m_pszPath);
 577         return FALSE;
 578     }
 579
 580     /* Allocate space for fully qualified paths */
 581     pszFQPath = SHAlloc(strlen(pUnixFolder->m_pszPath) + PATH_MAX);
 582     if (!pszFQPath) {
 583         WARN("SHAlloc failed!\n");
 584         return FALSE;
 585     }
 586
 587     /* Count number of directory entries. */
 588     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 589         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 590         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 591         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 592     }
 593
 594     /* If there are no entries, we are done. */
 595     if (cDirEntries == 0) {
 596         closedir(dir);
 597         SHFree(pszFQPath);
 598         return TRUE;
 599     }
 600
 601     /* Allocate the array of PIDLs */
 602     pUnixFolder->m_apidlSubDirs = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 603     if (!pUnixFolder->m_apidlSubDirs) {
 604         WARN("SHAlloc failed!\n");
 605         return FALSE;
 606     }
 607
 608     /* Allocate and initialize one SHITEMID per sub-directory. */
 609     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 610         LPSHITEMID pid;
 611
 612         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 613
 614         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 615
 616         sLen = strlen(pDirEntry->d_name);
 617         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 618         if (!pid) {
 619             WARN("SHAlloc failed!\n");
 620             return FALSE;
 621         }
 622         if (!UNIXFS_build_shitemid(pszFQPath, bParentIsFS, pid)) {
 623             SHFree(pid);
 624             continue;
 625         }
 626         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 627
 628         pUnixFolder->m_apidlSubDirs[i++] = (LPITEMIDLIST)pid;
 629     }
 630
 631     pUnixFolder->m_cSubDirs = i;
 632     closedir(dir);
 633     SHFree(pszFQPath);
 634
 635     return TRUE;
 636 }
 637
 638 /******************************************************************************
 639  * UnixFolder
 640  *
 641  * Class whose heap based instances represent unix filesystem directories.
 642  */
 643
 644 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 645     DWORD i;
 646
 647     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 648
 649     if (pUnixFolder->m_apidlSubDirs)
 650         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 651             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 652     SHFree(pUnixFolder->m_apidlSubDirs);
 653     SHFree(pUnixFolder->m_pszPath);
 654     ILFree(pUnixFolder->m_pidlLocation);
 655     SHFree(pUnixFolder);
 656 }
 657
 658 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 659     void **ppv)
 660 {
 661     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 662
 663     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 664
 665     if (!ppv) return E_INVALIDARG;
 666
 667     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 668         IsEqualIID(&IID_IShellFolder2, riid))
 669     {
 670         *ppv = &This->lpIShellFolder2Vtbl;
 671     } else if (IsEqualIID(&IID_IPersistFolder2, riid) || IsEqualIID(&IID_IPersistFolder, riid) ||
 672                IsEqualIID(&IID_IPersist, riid))
 673     {
 674         *ppv = &This->lpIPersistFolder2Vtbl;
 675     } else {
 676         *ppv = NULL;
 677         return E_NOINTERFACE;
 678     }
 679
 680     IUnknown_AddRef((IUnknown*)*ppv);
 681     return S_OK;
 682 }
 683
 684 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 685     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 686
 687     TRACE("(iface=%p)\n", iface);
 688
 689     return InterlockedIncrement(&This->m_cRef);
 690 }
 691
 692 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 693     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 694     ULONG cRef;
 695
 696     TRACE("(iface=%p)\n", iface);
 697
 698     cRef = InterlockedDecrement(&This->m_cRef);
 699
 700     if (!cRef)
 701         UnixFolder_Destroy(This);
 702
 703     return cRef;
 704 }
 705
 706 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 707     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 708     ULONG* pdwAttributes)
 709 {
 710     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 711     BOOL result;
 712
 713     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 714           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 715           pchEaten, ppidl, pdwAttributes);
 716
 717     result = UNIXFS_path_to_pidl(This, lpszDisplayName, ppidl);
 718     if (result && pdwAttributes && *pdwAttributes)
 719     {
 720         /* need to traverse to the last element for the attribute */
 721         LPCITEMIDLIST pidl, last_pidl;
 722         pidl = last_pidl = *ppidl;
 723         while(pidl && pidl->mkid.cb)
 724         {
 725             last_pidl = pidl;
 726             pidl = ILGetNext(pidl);
 727         }
 728         SHELL32_GetItemAttributes((IShellFolder*)iface, last_pidl, pdwAttributes);
 729     }
 730
 731     if (!result) TRACE("FAILED!\n");
 732     return result ? S_OK : E_FAIL;
 733 }
 734
 735 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 736
 737 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 738     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 739 {
 740     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 741     IUnknown *newIterator;
 742     HRESULT hr;
 743
 744     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 745             iface, hwndOwner, grfFlags, ppEnumIDList);
 746
 747     if (This->m_cSubDirs == -1)
 748         UNIXFS_build_subfolder_pidls(This);
 749
 750     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 751     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 752     IUnknown_Release(newIterator);
 753
 754     return hr;
 755 }
 756
 757 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 758     LPBC pbcReserved, REFIID riid, void** ppvOut)
 759 {
 760     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 761     IPersistFolder2 *persistFolder;
 762     LPITEMIDLIST pidlSubFolder;
 763     HRESULT hr;
 764
 765     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 766             iface, pidl, pbcReserved, riid, ppvOut);
 767
 768     if (!pidl || !pidl->mkid.cb)
 769         return E_INVALIDARG;
 770
 771     if (This->m_dwPathMode == PATHMODE_DOS)
 772         hr = UnixDosFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 773     else
 774         hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 775
 776     if (!SUCCEEDED(hr)) return hr;
 777     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 778
 779     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 780     IPersistFolder2_Initialize(persistFolder, pidlSubFolder);
 781     IPersistFolder2_Release(persistFolder);
 782     ILFree(pidlSubFolder);
 783
 784     return hr;
 785 }
 786
 787 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 788     LPBC pbcReserved, REFIID riid, void** ppvObj)
 789 {
 790     TRACE("stub\n");
 791     return E_NOTIMPL;
 792 }
 793
 794 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 795     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 796 {
 797     BOOL isEmpty1, isEmpty2;
 798     HRESULT hr = E_FAIL;
 799     LPITEMIDLIST firstpidl;
 800     IShellFolder2 *psf;
 801     int compare;
 802
 803     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 804
 805     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 806     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 807
 808     if (isEmpty1 && isEmpty2)
 809         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 810     else if (isEmpty1)
 811         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 812     else if (isEmpty2)
 813         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 814
 815     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 816         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 817     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 818         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 819
 820     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 821                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 822                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 823
 824     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 825         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)((compare == CSTR_LESS_THAN)?-1:1));
 826
 827     if (pidl1->mkid.cb < pidl2->mkid.cb)
 828         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 829     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 830         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 831
 832     firstpidl = ILCloneFirst(pidl1);
 833     pidl1 = ILGetNext(pidl1);
 834     pidl2 = ILGetNext(pidl2);
 835
 836     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 837     if (SUCCEEDED(hr)) {
 838         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 839         IShellFolder2_Release(psf);
 840     }
 841
 842     ILFree(firstpidl);
 843     return hr;
 844 }
 845
 846 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 847     REFIID riid, void** ppv)
 848 {
 849     HRESULT hr = E_INVALIDARG;
 850
 851     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 852
 853     if (!ppv) return E_INVALIDARG;
 854     *ppv = NULL;
 855
 856     if (IsEqualIID(&IID_IShellView, riid)) {
 857         LPSHELLVIEW pShellView;
 858
 859         pShellView = IShellView_Constructor((IShellFolder*)iface);
 860         if (pShellView) {
 861             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 862             IShellView_Release(pShellView);
 863         }
 864     }
 865
 866     return hr;
 867 }
 868
 869 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 870     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 871 {
 872     UINT i;
 873     SFGAOF flags= ~(SFGAOF)0;
 874
 875     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p) semi-stub\n", iface, cidl, apidl, rgfInOut);
 876
 877     for (i=0; i<cidl; i++)
 878         flags &= LPSTATSTRUCT_FROM_LPSHITEMID(apidl[i])->sfAttr;
 879
 880     *rgfInOut = *rgfInOut & flags;
 881
 882     return S_OK;
 883 }
 884
 885 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 886     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 887 {
 888     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 889
 890     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 891         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 892
 893     if (IsEqualIID(&IID_IContextMenu, riid)) {
 894         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 895         return S_OK;
 896     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 897         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 898         return S_OK;
 899     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 900         LPITEMIDLIST pidl;
 901         if (cidl != 1) return E_FAIL;
 902         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 903         *ppvOut = (LPVOID)IExtractIconA_Constructor(pidl);
 904         SHFree(pidl);
 905         return S_OK;
 906     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 907         LPITEMIDLIST pidl;
 908         if (cidl != 1) return E_FAIL;
 909         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 910         *ppvOut = (LPVOID)IExtractIconW_Constructor(pidl);
 911         SHFree(pidl);
 912         return S_OK;
 913     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 914         FIXME("IDropTarget\n");
 915         return E_FAIL;
 916     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 917         FIXME("IShellLinkW\n");
 918         return E_FAIL;
 919     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
 920         FIXME("IShellLinkA\n");
 921         return E_FAIL;
 922     } else {
 923         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
 924         return E_NOINTERFACE;
 925     }
 926 }
 927
 928 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
 929     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
 930 {
 931     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 932     HRESULT hr = S_OK;
 933
 934     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
 935
 936     if ((GET_SHGDN_FOR(uFlags) & SHGDN_FORPARSING) &&
 937         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
 938     {
 939         if (!pidl->mkid.cb) {
 940             lpName->uType = STRRET_CSTR;
 941             strcpy(lpName->u.cStr, This->m_pszPath);
 942             if (This->m_dwPathMode == PATHMODE_DOS) {
 943                 char path[MAX_PATH];
 944                 GetFullPathNameA(lpName->u.cStr, MAX_PATH, path, NULL);
 945                 PathRemoveBackslashA(path);
 946                 strcpy(lpName->u.cStr, path);
 947             }
 948         } else {
 949             IShellFolder *pSubFolder;
 950             USHORT emptyIDL = 0;
 951
 952             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
 953             if (!SUCCEEDED(hr)) return hr;
 954
 955             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
 956             IShellFolder_Release(pSubFolder);
 957         }
 958     } else {
 959         char *pszFileName = _ILGetTextPointer(pidl);
 960         lpName->uType = STRRET_CSTR;
 961         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
 962     }
 963
 964     TRACE("--> %s\n", lpName->u.cStr);
 965
 966     return hr;
 967 }
 968
 969 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* This, HWND hwnd,
 970     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
 971 {
 972     TRACE("stub\n");
 973     return E_NOTIMPL;
 974 }
 975
 976 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
 977     IEnumExtraSearch **ppEnum)
 978 {
 979     TRACE("stub\n");
 980     return E_NOTIMPL;
 981 }
 982
 983 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
 984     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
 985 {
 986     TRACE("stub\n");
 987     return E_NOTIMPL;
 988 }
 989
 990 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
 991     UINT iColumn, SHCOLSTATEF *pcsFlags)
 992 {
 993     TRACE("stub\n");
 994     return E_NOTIMPL;
 995 }
 996
 997 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
 998     GUID *pguid)
 999 {
1000     TRACE("stub\n");
1001     return E_NOTIMPL;
1002 }
1003
1004 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
1005     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
1006 {
1007     TRACE("stub\n");
1008     return E_NOTIMPL;
1009 }
1010
1011 #define SHELLVIEWCOLUMNS 6
1012
1013 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
1014     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
1015 {
1016     HRESULT hr = E_FAIL;
1017     struct passwd *pPasswd;
1018     struct group *pGroup;
1019     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
1020         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
1021         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
1022         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1023         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1024         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
1025         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
1026     };
1027
1028     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
1029
1030     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
1031         return E_INVALIDARG;
1032
1033     if (!pidl) {
1034         psd->fmt = SFHeader[iColumn].fmt;
1035         psd->cxChar = SFHeader[iColumn].cxChar;
1036         psd->str.uType = STRRET_CSTR;
1037         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
1038         return S_OK;
1039     } else {
1040         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
1041         psd->str.u.cStr[0] = '\0';
1042         psd->str.uType = STRRET_CSTR;
1043         switch (iColumn) {
1044             case 0:
1045                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
1046                 break;
1047             case 1:
1048                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
1049                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
1050                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
1051                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
1052                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
1053                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
1054                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
1055                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
1056                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
1057                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
1058                 psd->str.u.cStr[10] = '\0';
1059                 break;
1060             case 2:
1061                 pPasswd = getpwuid(pStatStruct->st_uid);
1062                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
1063                 break;
1064             case 3:
1065                 pGroup = getgrgid(pStatStruct->st_gid);
1066                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
1067                 break;
1068             case 4:
1069                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
1070                 break;
1071             case 5:
1072                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
1073                 break;
1074         }
1075     }
1076
1077     return hr;
1078 }
1079
1080 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
1081     SHCOLUMNID *pscid)
1082 {
1083     TRACE("stub\n");
1084     return E_NOTIMPL;
1085 }
1086
1087 /* VTable for UnixFolder's IShellFolder2 interface.
1088  */
1089 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
1090     UnixFolder_IShellFolder2_QueryInterface,
1091     UnixFolder_IShellFolder2_AddRef,
1092     UnixFolder_IShellFolder2_Release,
1093     UnixFolder_IShellFolder2_ParseDisplayName,
1094     UnixFolder_IShellFolder2_EnumObjects,
1095     UnixFolder_IShellFolder2_BindToObject,
1096     UnixFolder_IShellFolder2_BindToStorage,
1097     UnixFolder_IShellFolder2_CompareIDs,
1098     UnixFolder_IShellFolder2_CreateViewObject,
1099     UnixFolder_IShellFolder2_GetAttributesOf,
1100     UnixFolder_IShellFolder2_GetUIObjectOf,
1101     UnixFolder_IShellFolder2_GetDisplayNameOf,
1102     UnixFolder_IShellFolder2_SetNameOf,
1103     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
1104     UnixFolder_IShellFolder2_EnumSearches,
1105     UnixFolder_IShellFolder2_GetDefaultColumn,
1106     UnixFolder_IShellFolder2_GetDefaultColumnState,
1107     UnixFolder_IShellFolder2_GetDetailsEx,
1108     UnixFolder_IShellFolder2_GetDetailsOf,
1109     UnixFolder_IShellFolder2_MapColumnToSCID
1110 };
1111
1112 static HRESULT WINAPI UnixFolder_IPersistFolder2_QueryInterface(IPersistFolder2* This, REFIID riid,
1113     void** ppvObject)
1114 {
1115     return UnixFolder_IShellFolder2_QueryInterface(
1116                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This), riid, ppvObject);
1117 }
1118
1119 static ULONG WINAPI UnixFolder_IPersistFolder2_AddRef(IPersistFolder2* This)
1120 {
1121     return UnixFolder_IShellFolder2_AddRef(
1122                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1123 }
1124
1125 static ULONG WINAPI UnixFolder_IPersistFolder2_Release(IPersistFolder2* This)
1126 {
1127     return UnixFolder_IShellFolder2_Release(
1128                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1129 }
1130
1131 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetClassID(IPersistFolder2* This, CLSID* pClassID)
1132 {
1133     TRACE("stub\n");
1134     return E_NOTIMPL;
1135 }
1136
1137 static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* iface, LPCITEMIDLIST pidl)
1138 {
1139     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1140
1141     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
1142
1143     This->m_pidlLocation = ILClone(pidl);
1144
1145     pdump(pidl);
1146
1147     if (!UNIXFS_pidl_to_path(pidl, This))
1148         return E_FAIL;
1149
1150     /* Attributes of a shell namespace extension's root folder (in this case the '/' folder)
1151      * are not queried for with ShellFolder's GetAttributesOf, but looked up in the registry
1152      * (see MSDN: Creating a Shell Namespace Extension > Implementing the Basic Folder Object
1153      * Interface > Registering an Extension). When they change, we have to write them there.
1154      */
1155     if (!strcmp(This->m_pszPath, "/")) {
1156         DWORD dwTempAttr = SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR;
1157         struct stat statRoot;
1158
1159         if (stat(This->m_pszPath, &statRoot)) return E_FAIL;
1160         if (UNIXFS_is_dos_device(&statRoot)) dwTempAttr |= SFGAO_FILESYSTEM;
1161
1162         if (dwRootAttr != dwTempAttr) {
1163             HKEY hKey;
1164             static const WCHAR wszFolderAttrValue[] = { 'A','t','t','r','i','b','u','t','e','s',0 };
1165             static const WCHAR wszFolderAttrKey[] = { 'C','L','S','I','D','\\',
1166                 '{','9','D','2','0','A','A','E','8','-','0','6','2','5','-','4','4','B','0','-',
1167                 '9','C','A','7','-','7','1','8','8','9','C','2','2','5','4','D','9','}','\\',
1168                 'S','h','e','l','l','F','o','l','d','e','r',0 };
1169
1170             dwRootAttr = dwTempAttr;
1171             if (RegOpenKeyExW(HKEY_CLASSES_ROOT, wszFolderAttrKey, 0, KEY_WRITE, &hKey) == ERROR_SUCCESS) {
1172                 RegSetValueExW(hKey, wszFolderAttrValue, 0, REG_DWORD, (BYTE*)&dwTempAttr, sizeof(DWORD));
1173                 RegCloseKey(hKey);
1174             }
1175         }
1176     }
1177
1178     return S_OK;
1179 }
1180
1181 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetCurFolder(IPersistFolder2* iface, LPITEMIDLIST* ppidl)
1182 {
1183     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1184
1185     TRACE ("(iface=%p, ppidl=%p)\n", iface, ppidl);
1186
1187     if (!ppidl)
1188         return E_POINTER;
1189     *ppidl = ILClone (This->m_pidlLocation);
1190     return S_OK;
1191 }
1192
1193 /* VTable for UnixFolder's IPersistFolder interface.
1194  */
1195 static const IPersistFolder2Vtbl UnixFolder_IPersistFolder2_Vtbl = {
1196     UnixFolder_IPersistFolder2_QueryInterface,
1197     UnixFolder_IPersistFolder2_AddRef,
1198     UnixFolder_IPersistFolder2_Release,
1199     UnixFolder_IPersistFolder2_GetClassID,
1200     UnixFolder_IPersistFolder2_Initialize,
1201     UnixFolder_IPersistFolder2_GetCurFolder
1202 };
1203
1204 /******************************************************************************
1205  * Unix[Dos]Folder_Constructor [Internal]
1206  *
1207  * PARAMS
1208  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
1209  *  riid      [I] Interface asked for by the client.
1210  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
1211  *
1212  * NOTES
1213  *  Those are the only functions exported from shfldr_unixfs.c. They are called from
1214  *  shellole.c's default class factory and thus have to exhibit a LPFNCREATEINSTANCE
1215  *  compatible signature.
1216  *
1217  *  The UnixDosFolder_Constructor sets the dwPathMode member to PATHMODE_DOS. This
1218  *  means that paths are converted from dos to unix and back at the interfaces.
1219  */
1220 static HRESULT CreateUnixFolder(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv, DWORD dwPathMode) {
1221     HRESULT hr = E_FAIL;
1222     UnixFolder *pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
1223
1224     if(pUnixFolder) {
1225         pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
1226         pUnixFolder->lpIPersistFolder2Vtbl = &UnixFolder_IPersistFolder2_Vtbl;
1227         pUnixFolder->m_cRef = 0;
1228         pUnixFolder->m_pszPath = NULL;
1229         pUnixFolder->m_apidlSubDirs = NULL;
1230         pUnixFolder->m_cSubDirs = -1;
1231         pUnixFolder->m_dwPathMode = dwPathMode;
1232
1233         UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
1234         hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1235         UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1236     }
1237     return hr;
1238 }
1239
1240 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1241     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1242     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_UNIX);
1243 }
1244
1245 HRESULT WINAPI UnixDosFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1246     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1247     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_DOS);
1248 }
1249
1250 /******************************************************************************
1251  * UnixSubFolderIterator
1252  *
1253  * Class whose heap based objects represent iterators over the sub-directories
1254  * of a given UnixFolder object.
1255  */
1256
1257 /* UnixSubFolderIterator object layout and typedef.
1258  */
1259 typedef struct _UnixSubFolderIterator {
1260     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1261     ULONG m_cRef;
1262     UnixFolder *m_pUnixFolder;
1263     ULONG m_cIdx;
1264     SHCONTF m_fFilter;
1265 } UnixSubFolderIterator;
1266
1267 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1268     TRACE("(iterator=%p)\n", iterator);
1269
1270     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1271     SHFree(iterator);
1272 }
1273
1274 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1275     REFIID riid, void** ppv)
1276 {
1277     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1278
1279     if (!ppv) return E_INVALIDARG;
1280
1281     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1282         *ppv = iface;
1283     } else {
1284         *ppv = NULL;
1285         return E_NOINTERFACE;
1286     }
1287
1288     IEnumIDList_AddRef(iface);
1289     return S_OK;
1290 }
1291
1292 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1293 {
1294     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1295
1296     TRACE("(iface=%p)\n", iface);
1297
1298     return InterlockedIncrement(&This->m_cRef);
1299 }
1300
1301 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1302 {
1303     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1304     ULONG cRef;
1305
1306     TRACE("(iface=%p)\n", iface);
1307
1308     cRef = InterlockedDecrement(&This->m_cRef);
1309
1310     if (!cRef)
1311         UnixSubFolderIterator_Destroy(This);
1312
1313     return cRef;
1314 }
1315
1316 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1317     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1318 {
1319     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1320     ULONG i;
1321
1322     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1323
1324     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1325         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1326         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1327             rgelt[i] = ILClone(pCurrent);
1328             i++;
1329         }
1330     }
1331
1332     if (pceltFetched)
1333         *pceltFetched = i;
1334
1335     return i == celt ? S_OK : S_FALSE;
1336 }
1337
1338 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1339 {
1340     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1341     ULONG i;
1342
1343     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1344
1345     for (i=0; i < celt; i++) {
1346         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1347                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1348         {
1349             This->m_cIdx++;
1350         }
1351         This->m_cIdx++;
1352     }
1353
1354     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1355         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1356         return S_FALSE;
1357     } else {
1358         return S_OK;
1359     }
1360 }
1361
1362 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1363 {
1364     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1365
1366     TRACE("(iface=%p)\n", iface);
1367
1368     This->m_cIdx = 0;
1369
1370     return S_OK;
1371 }
1372
1373 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1374     IEnumIDList** ppenum)
1375 {
1376     TRACE("stub\n");
1377     return E_NOTIMPL;
1378 }
1379
1380 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1381  */
1382 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1383     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1384     UnixSubFolderIterator_IEnumIDList_AddRef,
1385     UnixSubFolderIterator_IEnumIDList_Release,
1386     UnixSubFolderIterator_IEnumIDList_Next,
1387     UnixSubFolderIterator_IEnumIDList_Skip,
1388     UnixSubFolderIterator_IEnumIDList_Reset,
1389     UnixSubFolderIterator_IEnumIDList_Clone
1390 };
1391
1392 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1393     UnixSubFolderIterator *iterator;
1394
1395     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1396
1397     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1398     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1399     iterator->m_cRef = 0;
1400     iterator->m_cIdx = 0;
1401     iterator->m_pUnixFolder = pUnixFolder;
1402     iterator->m_fFilter = fFilter;
1403
1404     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1405     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1406
1407     return (IUnknown*)iterator;
1408 }