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 #include <unistd.h>
  27 #ifdef HAVE_SYS_STAT_H
  28 # include <sys/stat.h>
  29 #endif
  30 #ifdef HAVE_PWD_H
  31 # include <pwd.h>
  32 #endif
  33 #include <grp.h>
  34 #include <limits.h>
  35
  36 #define COBJMACROS
  37 #define NONAMELESSUNION
  38 #define NONAMELESSSTRUCT
  39
  40 #include "windef.h"
  41 #include "winbase.h"
  42 #include "winuser.h"
  43 #include "objbase.h"
  44 #include "winreg.h"
  45 #include "winternl.h"
  46 #include "wine/debug.h"
  47
  48 #include "shell32_main.h"
  49 #include "shfldr.h"
  50 #include "shresdef.h"
  51 #include "pidl.h"
  52
  53 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  54
  55 const GUID CLSID_UnixFolder = {0xcc702eb2, 0x7dc5, 0x11d9, {0xc6, 0x87, 0x00, 0x04, 0x23, 0x8a, 0x01, 0xcd}};
  56 const GUID CLSID_UnixDosFolder = {0x9d20aae8, 0x0625, 0x44b0, {0x9c, 0xa7, 0x71, 0x88, 0x9c, 0x22, 0x54, 0xd9}};
  57
  58 #define ADJUST_THIS(c,m,p) ((c*)(((long)p)-(long)&(((c*)0)->lp##m##Vtbl)))
  59 #define STATIC_CAST(i,p) ((i*)&p->lp##i##Vtbl)
  60
  61 /* FileStruct reserves one byte for szNames, thus we don't have to
  62  * alloc a byte for the terminating '\0' of 'name'. Two of the
  63  * additional bytes are for SHITEMID's cb field. One is for IDLDATA's
  64  * type field. One is for FileStruct's szNames field, to terminate
  65  * the alternate DOS name, which we don't use here. And then there's
  66  * the additional StatStruct.
  67  */
  68 #define SHITEMID_LEN_FROM_NAME_LEN(n) \
  69     (sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
  70 #define NAME_LEN_FROM_LPSHITEMID(s) \
  71     (((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
  72 #define LPSTATSTRUCT_FROM_LPSHITEMID(s) ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct)))
  73
  74 #define PATHMODE_UNIX 0
  75 #define PATHMODE_DOS  1
  76
  77 /* This structure is appended to shell32's FileStruct type in IDLs to store unix
  78  * filesystem specific informationen extracted with the stat system call.
  79  */
  80 typedef struct tagStatStruct {
  81     mode_t st_mode;
  82     uid_t  st_uid;
  83     gid_t  st_gid;
  84 } StatStruct;
  85
  86 /* UnixFolder object layout and typedef.
  87  */
  88 typedef struct _UnixFolder {
  89     const IShellFolder2Vtbl  *lpIShellFolder2Vtbl;
  90     const IPersistFolder2Vtbl *lpIPersistFolder2Vtbl;
  91     ULONG m_cRef;
  92     CHAR *m_pszPath;
  93     LPITEMIDLIST m_pidlLocation;
  94     LPITEMIDLIST *m_apidlSubDirs;
  95     DWORD m_cSubDirs;
  96     DWORD m_dwPathMode;
  97 } UnixFolder;
  98
  99 /******************************************************************************
 100  * UNIXFS_is_pidl_of_type [INTERNAL]
 101  *
 102  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
 103  *
 104  * PARAMS
 105  *  pIDL    [I] The ITEMIDLIST to be checked.
 106  *  fFilter [I] Shell condition flags, which specify the filter.
 107  *
 108  * RETURNS
 109  *  TRUE, if pIDL is accepted by fFilter
 110  *  FALSE, otherwise
 111  */
 112 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
 113     LPSTR pszText = _ILGetTextPointer(pIDL);
 114     if (!pszText) return FALSE;
 115     if (pszText[0] == '.' && !(fFilter & SHCONTF_INCLUDEHIDDEN)) return FALSE;
 116     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
 117     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
 118     return FALSE;
 119 }
 120
 121 /******************************************************************************
 122  * UNIXFS_build_shitemid [Internal]
 123  *
 124  * Constructs a new SHITEMID for a single path item (up to the next '/' or
 125  * '\0') into a buffer. Decorates the SHITEMID with information from a stat
 126  * system call.
 127  *
 128  * PARAMS
 129  *  name   [I] The name of the next path item. Terminated by either '\0' or '/'.
 130  *  pStat  [I] A stat struct variable obtained by a stat system call on the file.
 131  *  buffer [O] SHITEMID will be constructed here.
 132  *
 133  * RETURNS
 134  *  A pointer to the next '/' or '\0' character in name.
 135  *
 136  * NOTES
 137  *  Minimum size of buffer is SHITEMID_LEN_FROM_NAME_LEN(strlen(name)).
 138  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 139  *  a 0 USHORT value.
 140  */
 141 static char* UNIXFS_build_shitemid(char *name, struct stat *pStat, void *buffer) {
 142     LARGE_INTEGER time;
 143     FILETIME fileTime;
 144     LPPIDLDATA pIDLData;
 145     StatStruct *pStatStruct;
 146     int cNameLen;
 147     char *pSlash;
 148
 149     TRACE("(name=%s, pStat=%p, buffer=%p)\n", debugstr_a(name), pStat, buffer);
 150
 151     pSlash = strchr(name, '/');
 152     cNameLen = pSlash ? pSlash - name : strlen(name);
 153
 154     memset(buffer, 0, SHITEMID_LEN_FROM_NAME_LEN(cNameLen));
 155     ((LPSHITEMID)buffer)->cb = SHITEMID_LEN_FROM_NAME_LEN(cNameLen) ;
 156
 157     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)buffer);
 158     pIDLData->type = S_ISDIR(pStat->st_mode) ? PT_FOLDER : PT_VALUE;
 159     pIDLData->u.file.dwFileSize = (DWORD)pStat->st_size;
 160     RtlSecondsSince1970ToTime( pStat->st_mtime, &time );
 161     fileTime.dwLowDateTime = time.u.LowPart;
 162     fileTime.dwHighDateTime = time.u.HighPart;
 163     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 164     pIDLData->u.file.uFileAttribs =
 165         (S_ISDIR(pStat->st_mode) ? FILE_ATTRIBUTE_DIRECTORY : 0) |
 166         (name[0] == '.' ? FILE_ATTRIBUTE_HIDDEN : 0);
 167     memcpy(pIDLData->u.file.szNames, name, cNameLen);
 168
 169     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(buffer);
 170     pStatStruct->st_mode = pStat->st_mode;
 171     pStatStruct->st_uid = pStat->st_uid;
 172     pStatStruct->st_gid = pStat->st_gid;
 173
 174     return pSlash ? pSlash+1 : (name + cNameLen);
 175 }
 176
 177 /******************************************************************************
 178  * UNIXFS_canonicalize_path [Internal]
 179  *
 180  * Evaluate "/.", "/.." and symbolic links for an absolute unix path.
 181  *
 182  * PARAMS
 183  *  pszUnixPath      [I] An absolute unix path
 184  *  pszCanonicalPath [O] Buffer of length FILENAME_MAX. Will receive the canonical path.
 185  *
 186  * RETURNS
 187  *  Success, TRUE
 188  *  Failure, FALSE - Path not existent, too long, insufficient rights, to many symlinks
 189  */
 190 static BOOL UNIXFS_canonicalize_path(const char *pszUnixPath, char *pszCanonicalPath)
 191 {
 192     char *pPathTail, *pElement, *pCanonicalTail, szPath[FILENAME_MAX];
 193     struct stat fileStat;
 194
 195     TRACE("(pszUnixPath=%s, pszCanonicalPath=%p)\n", debugstr_a(pszUnixPath), pszCanonicalPath);
 196
 197     if (!pszUnixPath || *pszUnixPath != '/')
 198         return FALSE;
 199
 200     strcpy(szPath, pszUnixPath);
 201
 202     /* pCanonicalTail always points to the end of the canonical path constructed
 203      * thus far. pPathTail points to the still to be processed part of the input
 204      * path. pElement points to the path element currently investigated.
 205      */
 206     *pszCanonicalPath = '\0';
 207     pCanonicalTail = pszCanonicalPath;
 208     pPathTail = szPath;
 209
 210     do {
 211         char cTemp;
 212         int cLinks = 0;
 213
 214         pElement = pPathTail;
 215         pPathTail = strchr(pPathTail+1, '/');
 216         if (!pPathTail) /* Last path element may not be terminated by '/'. */
 217             pPathTail = pElement + strlen(pElement);
 218         /* Temporarily terminate the current path element. Will be restored later. */
 219         cTemp = *pPathTail;
 220         *pPathTail = '\0';
 221
 222         /* Skip "/." path elements */
 223         if (!strcmp("/.", pElement)) {
 224             *pPathTail = cTemp;
 225             continue;
 226         }
 227
 228         /* Remove last element in canonical path for "/.." elements, then skip. */
 229         if (!strcmp("/..", pElement)) {
 230             char *pTemp = strrchr(pszCanonicalPath, '/');
 231             if (pTemp)
 232                 pCanonicalTail = pTemp;
 233             *pCanonicalTail = '\0';
 234             *pPathTail = cTemp;
 235             continue;
 236         }
 237
 238         /* lstat returns zero on success. */
 239         if (lstat(szPath, &fileStat))
 240             return FALSE;
 241
 242         if (S_ISLNK(fileStat.st_mode)) {
 243             char szSymlink[FILENAME_MAX];
 244             int cLinkLen, cTailLen;
 245
 246             /* Avoid infinite loop for recursive links. */
 247             if (++cLinks > 64)
 248                 return FALSE;
 249
 250             cLinkLen = readlink(szPath, szSymlink, FILENAME_MAX);
 251             if (cLinkLen < 0)
 252                 return FALSE;
 253
 254             *pPathTail = cTemp;
 255             cTailLen = strlen(pPathTail);
 256
 257             if (szSymlink[0] == '/') {
 258                 /* Absolute link. Copy to szPath, concat remaining path and start all over. */
 259                 if (cLinkLen + cTailLen + 1 > FILENAME_MAX)
 260                     return FALSE;
 261
 262                 memcpy(szSymlink + cLinkLen, pPathTail, cTailLen + 1);
 263                 memcpy(szPath, szSymlink, cLinkLen + cTailLen + 1);
 264                 *pszCanonicalPath = '\0';
 265                     pCanonicalTail = pszCanonicalPath;
 266                     pPathTail = szPath;
 267             } else {
 268                 /* Relative link. Expand into szPath and continue. */
 269                 char szTemp[FILENAME_MAX];
 270                 int cTailLen = strlen(pPathTail);
 271
 272                 if (pElement - szPath + 1 + cLinkLen + cTailLen + 1 > FILENAME_MAX)
 273                     return FALSE;
 274
 275                 memcpy(szTemp, pPathTail, cTailLen + 1);
 276                 memcpy(pElement + 1, szSymlink, cLinkLen);
 277                 memcpy(pElement + 1 + cLinkLen, szTemp, cTailLen + 1);
 278                 pPathTail = pElement;
 279             }
 280         } else {
 281             /* Regular directory or file. Copy to canonical path */
 282             if (pCanonicalTail - pszCanonicalPath + pPathTail - pElement + 1 > FILENAME_MAX)
 283                 return FALSE;
 284
 285             memcpy(pCanonicalTail, pElement, pPathTail - pElement + 1);
 286             pCanonicalTail += pPathTail - pElement;
 287             *pPathTail = cTemp;
 288         }
 289     } while (pPathTail[0] == '/' && pPathTail[1]); /* Also handles paths terminated by '/' */
 290
 291     TRACE("--> %s\n", debugstr_a(pszCanonicalPath));
 292
 293     return TRUE;
 294 }
 295
 296 /******************************************************************************
 297  * UNIXFS_path_to_pidl [Internal]
 298  *
 299  * PARAMS
 300  *  pUnixFolder [I] If path is relative, pUnixFolder represents the base path
 301  *  path        [I] An absolute unix or dos path or a path relativ to pUnixFolder
 302  *  ppidl       [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 303  *
 304  * RETURNS
 305  *  Success: TRUE
 306  *  Failure: FALSE, invalid params or out of memory
 307  *
 308  * NOTES
 309  *  pUnixFolder also carries the information if the path is expected to be unix or dos.
 310  */
 311 static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPITEMIDLIST *ppidl) {
 312     LPITEMIDLIST pidl;
 313     struct stat fileStat;
 314     int cSubDirs, cPidlLen, res, cPathLen;
 315     char *pSlash, szCompletePath[FILENAME_MAX], *pNextPathElement;
 316
 317     TRACE("pUnixFolder=%p, path=%s, ppidl=%p\n", pUnixFolder, debugstr_w(path), ppidl);
 318
 319     if (!ppidl || !path)
 320         return FALSE;
 321
 322     cPathLen = lstrlenW(path);
 323
 324     /* Build an absolute path and let pNextPathElement point to the interesting
 325      * relative sub-path. We need the absolute path to call 'stat', but the pidl
 326      * will only contain the relative part.
 327      */
 328     if ((pUnixFolder->m_dwPathMode == PATHMODE_DOS) && (path[1] == ':'))
 329     {
 330         /* Absolute dos path. Convert to unix */
 331         char *pszUnixPath = wine_get_unix_file_name(path);
 332         if (!UNIXFS_canonicalize_path(pszUnixPath, szCompletePath)) {
 333             HeapFree(GetProcessHeap(), 0, pszUnixPath);
 334             return FALSE;
 335         }
 336         HeapFree(GetProcessHeap(), 0, pszUnixPath);
 337         pNextPathElement = szCompletePath + 1;
 338     }
 339     else if ((pUnixFolder->m_dwPathMode == PATHMODE_UNIX) && (path[0] == '/'))
 340     {
 341         /* Absolute unix path. Just convert to ANSI. */
 342         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath, FILENAME_MAX, NULL, NULL);
 343         pNextPathElement = szCompletePath + 1;
 344     }
 345     else
 346     {
 347         /* Relative dos or unix path. Concat with this folder's path */
 348         int cBasePathLen = strlen(pUnixFolder->m_pszPath);
 349         memcpy(szCompletePath, pUnixFolder->m_pszPath, cBasePathLen);
 350         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath + cBasePathLen,
 351                             FILENAME_MAX - cBasePathLen, NULL, NULL);
 352         pNextPathElement = szCompletePath + cBasePathLen;
 353
 354         /* If in dos mode, replace '\' with '/' */
 355         if (pUnixFolder->m_dwPathMode == PATHMODE_DOS) {
 356             char *pBackslash = strchr(pNextPathElement, '\\');
 357             while (pBackslash) {
 358                 *pBackslash = '/';
 359                 pBackslash = strchr(pBackslash, '\\');
 360             }
 361         }
 362     }
 363
 364     /* At this point, we have an absolute unix path in szCompletePath. */
 365     TRACE("complete path: %s\n", szCompletePath);
 366
 367     /* Count the number of sub-directories in the path */
 368     cSubDirs = 1; /* Path may not be terminated with '/', thus start with 1 */
 369     pSlash = strchr(pNextPathElement, '/');
 370     while (pSlash && pSlash[1]) {
 371         cSubDirs++;
 372         pSlash = strchr(pSlash+1, '/');
 373     }
 374
 375     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 376      * characters, which are not stored in the ITEMIDLIST. */
 377     cPidlLen = strlen(pNextPathElement) - cSubDirs + 1 + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 378     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 379     if (!pidl) return FALSE;
 380
 381     /* Concatenate the SHITEMIDs of the sub-directories. */
 382     while (*pNextPathElement) {
 383         pSlash = strchr(pNextPathElement, '/');
 384         if (pSlash) {
 385             *pSlash = '\0';
 386             res = stat(szCompletePath, &fileStat);
 387             *pSlash = '/';
 388             if (res) {
 389                 SHFree(pidl);
 390                 return FALSE;
 391             }
 392         } else {
 393             if (stat(szCompletePath, &fileStat)) {
 394                 SHFree(pidl);
 395                 return FALSE;
 396             }
 397         }
 398
 399         pNextPathElement = UNIXFS_build_shitemid(pNextPathElement, &fileStat, pidl);
 400         pidl = ILGetNext(pidl);
 401     }
 402     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 403
 404     if ((int)pidl-(int)*ppidl+sizeof(USHORT) > cPidlLen) /* We've corrupted the heap :( */
 405         ERR("Computed length of pidl to small. Please report.\n");
 406
 407     return TRUE;
 408 }
 409
 410 /******************************************************************************
 411  * UNIXFS_pidl_to_path [Internal]
 412  *
 413  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 414  *
 415  * PARAMS
 416  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 417  *  path [O] The corresponding unix path as a zero terminated ascii string
 418  *
 419  * RETURNS
 420  *  Success: TRUE
 421  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 422  */
 423 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, UnixFolder *pUnixFolder) {
 424     LPCITEMIDLIST current = pidl, root;
 425     DWORD dwPathLen;
 426     char *pNextDir;
 427
 428     TRACE("(pidl=%p, pUnixFolder=%p)\n", pidl, pUnixFolder);
 429
 430     pUnixFolder->m_pszPath = NULL;
 431
 432     /* Find the UnixFolderClass root */
 433     while (current->mkid.cb) {
 434         LPPIDLDATA pData = _ILGetDataPointer(current);
 435         if (!pData) return FALSE;
 436         if (pData->type == PT_GUID &&
 437             (IsEqualIID(&CLSID_UnixFolder, &pData->u.guid.guid) ||
 438              IsEqualIID(&CLSID_UnixDosFolder, &pData->u.guid.guid)))
 439         {
 440             break;
 441         }
 442         current = ILGetNext(current);
 443     }
 444     root = current = ILGetNext(current);
 445
 446     /* Determine the path's length bytes */
 447     dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 448     while (current->mkid.cb) {
 449         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 450         current = ILGetNext(current);
 451     };
 452
 453     /* Build the path */
 454     pUnixFolder->m_pszPath = pNextDir = SHAlloc(dwPathLen);
 455     if (!pUnixFolder->m_pszPath) {
 456         WARN("SHAlloc failed!\n");
 457         return FALSE;
 458     }
 459     current = root;
 460     *pNextDir++ = '/';
 461     while (current->mkid.cb) {
 462         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 463         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 464         *pNextDir++ = '/';
 465         current = ILGetNext(current);
 466     }
 467     *pNextDir='\0';
 468
 469     TRACE("--> %s\n", pUnixFolder->m_pszPath);
 470     return TRUE;
 471 }
 472
 473 /******************************************************************************
 474  * UNIXFS_build_subfolder_pidls [Internal]
 475  *
 476  * Builds an array of subfolder PIDLs relative to a unix directory
 477  *
 478  * PARAMS
 479  *  path   [I] Name of a unix directory as a zero terminated ascii string
 480  *  apidl  [O] The array of PIDLs
 481  *  pCount [O] Size of apidl
 482  *
 483  * RETURNS
 484  *  Success: TRUE
 485  *  Failure: FALSE, path is not a valid unix directory or out of memory
 486  *
 487  * NOTES
 488  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 489  *  to release each PIDL as well as the array itself with SHFree.
 490  */
 491 static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
 492 {
 493     struct dirent *pDirEntry;
 494     struct stat fileStat;
 495     DIR *dir;
 496     DWORD cDirEntries, i;
 497     USHORT sLen;
 498     char *pszFQPath;
 499
 500     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 501
 502     pUnixFolder->m_apidlSubDirs = NULL;
 503     pUnixFolder->m_cSubDirs = 0;
 504
 505     dir = opendir(pUnixFolder->m_pszPath);
 506     if (!dir) {
 507         WARN("Failed to open directory '%s'.\n", pUnixFolder->m_pszPath);
 508         return FALSE;
 509     }
 510
 511     /* Allocate space for fully qualified paths */
 512     pszFQPath = SHAlloc(strlen(pUnixFolder->m_pszPath) + PATH_MAX);
 513     if (!pszFQPath) {
 514         WARN("SHAlloc failed!\n");
 515         return FALSE;
 516     }
 517
 518     /* Count number of directory entries. */
 519     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 520         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 521         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 522         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 523     }
 524
 525     /* If there are no entries, we are done. */
 526     if (cDirEntries == 0) {
 527         closedir(dir);
 528         SHFree(pszFQPath);
 529         return TRUE;
 530     }
 531
 532     /* Allocate the array of PIDLs */
 533     pUnixFolder->m_apidlSubDirs = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 534     if (!pUnixFolder->m_apidlSubDirs) {
 535         WARN("SHAlloc failed!\n");
 536         return FALSE;
 537     }
 538
 539     /* Allocate and initialize one SHITEMID per sub-directory. */
 540     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 541         LPSHITEMID pid;
 542
 543         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 544
 545         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 546         if (stat(pszFQPath, &fileStat)) continue;
 547         if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) continue;
 548
 549         sLen = strlen(pDirEntry->d_name);
 550         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 551         if (!pid) {
 552             WARN("SHAlloc failed!\n");
 553             return FALSE;
 554         }
 555         UNIXFS_build_shitemid(pDirEntry->d_name, &fileStat, pid);
 556         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 557
 558         pUnixFolder->m_apidlSubDirs[i++] = (LPITEMIDLIST)pid;
 559     }
 560
 561     pUnixFolder->m_cSubDirs = i;
 562     closedir(dir);
 563     SHFree(pszFQPath);
 564
 565     return TRUE;
 566 }
 567
 568 /******************************************************************************
 569  * UnixFolderIcon
 570  *
 571  * Singleton class, which is used by the shell to extract icons to represent
 572  * folders in tree- and listviews. Currently, all this singleton does is to
 573  * provide the shell with the absolute path to "shell32.dll" and with the
 574  * indices of the closed and opened folder icons in the resources of this dll.
 575  */
 576
 577 /* UnixFolderIcon object layout and typedef.
 578  */
 579 typedef struct _UnixFolderIcon {
 580     const IExtractIconWVtbl *lpIExtractIconWVtbl;
 581     BOOL bFolder;
 582 } UnixFolderIcon;
 583
 584 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_QueryInterface(IExtractIconW *iface, REFIID riid,
 585     void **ppv)
 586 {
 587     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 588
 589     if (!ppv) return E_INVALIDARG;
 590
 591     if (IsEqualIID(&IID_IUnknown, riid) ||
 592         IsEqualIID(&IID_IExtractIconW, riid))
 593     {
 594         *ppv = iface;
 595     } else {
 596         *ppv = NULL;
 597         return E_NOINTERFACE;
 598     }
 599
 600     IExtractIconW_AddRef(iface);
 601     return S_OK;
 602 }
 603
 604 static ULONG WINAPI UnixFolderIcon_IExtractIconW_AddRef(IExtractIconW *iface) {
 605     TRACE("(iface=%p)\n", iface);
 606     return 2;
 607 }
 608
 609 static ULONG WINAPI UnixFolderIcon_IExtractIconW_Release(IExtractIconW *iface) {
 610     TRACE("(iface=%p)\n", iface);
 611     return 1;
 612 }
 613
 614 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_GetIconLocation(IExtractIconW *iface,
 615     UINT uFlags, LPWSTR szIconFile, UINT cchMax, INT* piIndex, UINT* pwFlags)
 616 {
 617     UnixFolderIcon *This = ADJUST_THIS(UnixFolderIcon, IExtractIconW, iface);
 618
 619     TRACE("(iface=%p, uFlags=%u, szIconFile=%s, cchMax=%u, piIndex=%p, pwFlags=%p)\n",
 620             iface, uFlags, debugstr_w(szIconFile), cchMax, piIndex, pwFlags);
 621
 622     lstrcpynW(szIconFile, swShell32Name, cchMax);
 623     if (This->bFolder) {
 624         *piIndex = (uFlags & GIL_OPENICON) ? -IDI_SHELL_FOLDER_OPEN : -IDI_SHELL_FOLDER;
 625     } else {
 626         *piIndex = -IDI_SHELL_DOCUMENT;
 627     }
 628     *pwFlags = 0;
 629
 630     return S_OK;
 631 }
 632
 633 static HRESULT WINAPI UnixFolderIcon_IExtractIconW_Extract(
 634     IExtractIconW *iface, LPCWSTR pszFile, UINT nIconIndex, HICON* phiconLarge, HICON* phiconSmall,
 635     UINT nIconSize)
 636 {
 637     TRACE("(iface=%p, pszFile=%s, nIconIndex=%u, phiconLarge=%p, phiconSmall=%p, nIconSize=%u)"
 638           "stub\n", iface, debugstr_w(pszFile), nIconIndex, phiconLarge, phiconSmall, nIconSize);
 639
 640     return E_NOTIMPL;
 641 }
 642
 643 /* VTable for the IExtractIconW interface of the UnixFolderIcon class.
 644  */
 645 static const IExtractIconWVtbl UnixFolderIcon_IExtractIconW_Vtbl = {
 646     UnixFolderIcon_IExtractIconW_QueryInterface,
 647     UnixFolderIcon_IExtractIconW_AddRef,
 648     UnixFolderIcon_IExtractIconW_Release,
 649     UnixFolderIcon_IExtractIconW_GetIconLocation,
 650     UnixFolderIcon_IExtractIconW_Extract
 651 };
 652
 653 /* The singleton instance
 654  */
 655 UnixFolderIcon UnixFolderIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, TRUE };
 656 UnixFolderIcon UnixDocumentIconSingleton = { &UnixFolderIcon_IExtractIconW_Vtbl, FALSE };
 657
 658 /******************************************************************************
 659  * UnixFolder
 660  *
 661  * Class whose heap based instances represent unix filesystem directories.
 662  */
 663
 664 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 665     DWORD i;
 666
 667     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 668
 669     if (pUnixFolder->m_apidlSubDirs)
 670         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 671             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 672     SHFree(pUnixFolder->m_apidlSubDirs);
 673     SHFree(pUnixFolder->m_pszPath);
 674     ILFree(pUnixFolder->m_pidlLocation);
 675     SHFree(pUnixFolder);
 676 }
 677
 678 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 679     void **ppv)
 680 {
 681     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 682
 683     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 684
 685     if (!ppv) return E_INVALIDARG;
 686
 687     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 688         IsEqualIID(&IID_IShellFolder2, riid))
 689     {
 690         *ppv = &This->lpIShellFolder2Vtbl;
 691     } else if (IsEqualIID(&IID_IPersistFolder2, riid) || IsEqualIID(&IID_IPersistFolder, riid) ||
 692                IsEqualIID(&IID_IPersist, riid))
 693     {
 694         *ppv = &This->lpIPersistFolder2Vtbl;
 695     } else {
 696         *ppv = NULL;
 697         return E_NOINTERFACE;
 698     }
 699
 700     IUnknown_AddRef((IUnknown*)*ppv);
 701     return S_OK;
 702 }
 703
 704 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 705     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 706
 707     TRACE("(iface=%p)\n", iface);
 708
 709     return InterlockedIncrement(&This->m_cRef);
 710 }
 711
 712 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 713     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 714     ULONG cRef;
 715
 716     TRACE("(iface=%p)\n", iface);
 717
 718     cRef = InterlockedDecrement(&This->m_cRef);
 719
 720     if (!cRef)
 721         UnixFolder_Destroy(This);
 722
 723     return cRef;
 724 }
 725
 726 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 727     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 728     ULONG* pdwAttributes)
 729 {
 730     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 731     BOOL result;
 732
 733     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 734           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 735           pchEaten, ppidl, pdwAttributes);
 736
 737     result = UNIXFS_path_to_pidl(This, lpszDisplayName, ppidl);
 738     if (result && pdwAttributes && *pdwAttributes)
 739     {
 740         /* need to traverse to the last element for the attribute */
 741         LPCITEMIDLIST pidl, last_pidl;
 742         pidl = last_pidl = *ppidl;
 743         while(pidl && pidl->mkid.cb)
 744         {
 745             last_pidl = pidl;
 746             pidl = ILGetNext(pidl);
 747         }
 748         SHELL32_GetItemAttributes((IShellFolder*)iface, last_pidl, pdwAttributes);
 749     }
 750
 751     if (!result) TRACE("FAILED!\n");
 752     return result ? S_OK : E_FAIL;
 753 }
 754
 755 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 756
 757 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 758     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 759 {
 760     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 761     IUnknown *newIterator;
 762     HRESULT hr;
 763
 764     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 765             iface, hwndOwner, grfFlags, ppEnumIDList);
 766
 767     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 768     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 769     IUnknown_Release(newIterator);
 770
 771     return hr;
 772 }
 773
 774 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 775     LPBC pbcReserved, REFIID riid, void** ppvOut)
 776 {
 777     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 778     IPersistFolder2 *persistFolder;
 779     LPITEMIDLIST pidlSubFolder;
 780     HRESULT hr;
 781
 782     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 783             iface, pidl, pbcReserved, riid, ppvOut);
 784
 785     if (This->m_dwPathMode == PATHMODE_DOS)
 786         hr = UnixDosFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 787     else
 788         hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 789
 790     if (!SUCCEEDED(hr)) return hr;
 791     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 792
 793     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 794     IPersistFolder2_Initialize(persistFolder, pidlSubFolder);
 795     IPersistFolder2_Release(persistFolder);
 796     ILFree(pidlSubFolder);
 797
 798     return hr;
 799 }
 800
 801 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 802     LPBC pbcReserved, REFIID riid, void** ppvObj)
 803 {
 804     TRACE("stub\n");
 805     return E_NOTIMPL;
 806 }
 807
 808 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 809     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 810 {
 811     BOOL isEmpty1, isEmpty2;
 812     HRESULT hr = E_FAIL;
 813     LPITEMIDLIST firstpidl;
 814     IShellFolder2 *psf;
 815     int compare;
 816
 817     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 818
 819     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 820     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 821
 822     if (isEmpty1 && isEmpty2)
 823         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 824     else if (isEmpty1)
 825         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 826     else if (isEmpty2)
 827         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 828
 829     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 830         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 831     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 832         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 833
 834     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 835                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 836                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 837
 838     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 839         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)((compare == CSTR_LESS_THAN)?-1:1));
 840
 841     if (pidl1->mkid.cb < pidl2->mkid.cb)
 842         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 843     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 844         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 845
 846     firstpidl = ILCloneFirst(pidl1);
 847     pidl1 = ILGetNext(pidl1);
 848     pidl2 = ILGetNext(pidl2);
 849
 850     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 851     if (SUCCEEDED(hr)) {
 852         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 853         IShellFolder2_Release(psf);
 854     }
 855
 856     ILFree(firstpidl);
 857     return hr;
 858 }
 859
 860 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 861     REFIID riid, void** ppv)
 862 {
 863     HRESULT hr = E_INVALIDARG;
 864
 865     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 866
 867     if (!ppv) return E_INVALIDARG;
 868     *ppv = NULL;
 869
 870     if (IsEqualIID(&IID_IShellView, riid)) {
 871         LPSHELLVIEW pShellView;
 872
 873         pShellView = IShellView_Constructor((IShellFolder*)iface);
 874         if (pShellView) {
 875             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 876             IShellView_Release(pShellView);
 877         }
 878     }
 879
 880     return hr;
 881 }
 882
 883 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 884     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 885 {
 886     UINT i;
 887     SFGAOF flags= ~(SFGAOF)0;
 888
 889     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p) semi-stub\n", iface, cidl, apidl, rgfInOut);
 890
 891     for (i=0; i<cidl; i++) {
 892         LPPIDLDATA pData = _ILGetDataPointer(apidl[i]);
 893         if (!pData) continue;
 894         if (pData->type == PT_FOLDER) flags &= (SFGAO_FILESYSTEM|SFGAO_FILESYSANCESTOR|SFGAO_FOLDER|SFGAO_HASSUBFOLDER);
 895         if (pData->type == PT_VALUE) flags &= SFGAO_FILESYSTEM;
 896     }
 897
 898     *rgfInOut = *rgfInOut & flags;
 899
 900     return S_OK;
 901 }
 902
 903 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 904     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 905 {
 906     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 907
 908     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 909         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 910
 911     if (IsEqualIID(&IID_IContextMenu, riid)) {
 912         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 913         return S_OK;
 914     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 915         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 916         return S_OK;
 917     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 918         FIXME("IExtractIconA\n");
 919         return E_FAIL;
 920     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 921         if (cidl != 1) return E_FAIL;
 922         if (_ILIsFolder(apidl[0]))
 923             *ppvOut = &UnixFolderIconSingleton;
 924         else
 925             *ppvOut = &UnixDocumentIconSingleton;
 926         return S_OK;
 927     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 928         FIXME("IDropTarget\n");
 929         return E_FAIL;
 930     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 931         FIXME("IShellLinkW\n");
 932         return E_FAIL;
 933     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
 934         FIXME("IShellLinkA\n");
 935         return E_FAIL;
 936     } else {
 937         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
 938         return E_NOINTERFACE;
 939     }
 940 }
 941
 942 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
 943     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
 944 {
 945     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 946     HRESULT hr = S_OK;
 947
 948     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
 949
 950     if ((GET_SHGDN_FOR(uFlags) & SHGDN_FORPARSING) &&
 951         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
 952     {
 953         if (!pidl->mkid.cb) {
 954             lpName->uType = STRRET_CSTR;
 955             strcpy(lpName->u.cStr, This->m_pszPath);
 956             if (This->m_dwPathMode == PATHMODE_DOS) {
 957                 char path[MAX_PATH];
 958                 GetFullPathNameA(lpName->u.cStr, MAX_PATH, path, NULL);
 959                 strcpy(lpName->u.cStr, path);
 960             }
 961         } else {
 962             IShellFolder *pSubFolder;
 963             USHORT emptyIDL = 0;
 964
 965             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
 966             if (!SUCCEEDED(hr)) return hr;
 967
 968             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
 969             IShellFolder_Release(pSubFolder);
 970         }
 971     } else {
 972         char *pszFileName = _ILGetTextPointer(pidl);
 973         lpName->uType = STRRET_CSTR;
 974         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
 975     }
 976
 977     TRACE("--> %s\n", lpName->u.cStr);
 978
 979     return hr;
 980 }
 981
 982 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* This, HWND hwnd,
 983     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
 984 {
 985     TRACE("stub\n");
 986     return E_NOTIMPL;
 987 }
 988
 989 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
 990     IEnumExtraSearch **ppEnum)
 991 {
 992     TRACE("stub\n");
 993     return E_NOTIMPL;
 994 }
 995
 996 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
 997     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
 998 {
 999     TRACE("stub\n");
1000     return E_NOTIMPL;
1001 }
1002
1003 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
1004     UINT iColumn, SHCOLSTATEF *pcsFlags)
1005 {
1006     TRACE("stub\n");
1007     return E_NOTIMPL;
1008 }
1009
1010 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
1011     GUID *pguid)
1012 {
1013     TRACE("stub\n");
1014     return E_NOTIMPL;
1015 }
1016
1017 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
1018     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
1019 {
1020     TRACE("stub\n");
1021     return E_NOTIMPL;
1022 }
1023
1024 #define SHELLVIEWCOLUMNS 6
1025
1026 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
1027     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
1028 {
1029     HRESULT hr = E_FAIL;
1030     struct passwd *pPasswd;
1031     struct group *pGroup;
1032     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
1033         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
1034         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
1035         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1036         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1037         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
1038         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
1039     };
1040
1041     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
1042
1043     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
1044         return E_INVALIDARG;
1045
1046     if (!pidl) {
1047         psd->fmt = SFHeader[iColumn].fmt;
1048         psd->cxChar = SFHeader[iColumn].cxChar;
1049         psd->str.uType = STRRET_CSTR;
1050         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
1051         return S_OK;
1052     } else {
1053         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
1054         psd->str.u.cStr[0] = '\0';
1055         psd->str.uType = STRRET_CSTR;
1056         switch (iColumn) {
1057             case 0:
1058                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
1059                 break;
1060             case 1:
1061                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
1062                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
1063                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
1064                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
1065                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
1066                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
1067                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
1068                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
1069                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
1070                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
1071                 psd->str.u.cStr[10] = '\0';
1072                 break;
1073             case 2:
1074                 pPasswd = getpwuid(pStatStruct->st_uid);
1075                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
1076                 break;
1077             case 3:
1078                 pGroup = getgrgid(pStatStruct->st_gid);
1079                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
1080                 break;
1081             case 4:
1082                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
1083                 break;
1084             case 5:
1085                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
1086                 break;
1087         }
1088     }
1089
1090     return hr;
1091 }
1092
1093 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
1094     SHCOLUMNID *pscid)
1095 {
1096     TRACE("stub\n");
1097     return E_NOTIMPL;
1098 }
1099
1100 /* VTable for UnixFolder's IShellFolder2 interface.
1101  */
1102 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
1103     UnixFolder_IShellFolder2_QueryInterface,
1104     UnixFolder_IShellFolder2_AddRef,
1105     UnixFolder_IShellFolder2_Release,
1106     UnixFolder_IShellFolder2_ParseDisplayName,
1107     UnixFolder_IShellFolder2_EnumObjects,
1108     UnixFolder_IShellFolder2_BindToObject,
1109     UnixFolder_IShellFolder2_BindToStorage,
1110     UnixFolder_IShellFolder2_CompareIDs,
1111     UnixFolder_IShellFolder2_CreateViewObject,
1112     UnixFolder_IShellFolder2_GetAttributesOf,
1113     UnixFolder_IShellFolder2_GetUIObjectOf,
1114     UnixFolder_IShellFolder2_GetDisplayNameOf,
1115     UnixFolder_IShellFolder2_SetNameOf,
1116     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
1117     UnixFolder_IShellFolder2_EnumSearches,
1118     UnixFolder_IShellFolder2_GetDefaultColumn,
1119     UnixFolder_IShellFolder2_GetDefaultColumnState,
1120     UnixFolder_IShellFolder2_GetDetailsEx,
1121     UnixFolder_IShellFolder2_GetDetailsOf,
1122     UnixFolder_IShellFolder2_MapColumnToSCID
1123 };
1124
1125 static HRESULT WINAPI UnixFolder_IPersistFolder2_QueryInterface(IPersistFolder2* This, REFIID riid,
1126     void** ppvObject)
1127 {
1128     return UnixFolder_IShellFolder2_QueryInterface(
1129                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This), riid, ppvObject);
1130 }
1131
1132 static ULONG WINAPI UnixFolder_IPersistFolder2_AddRef(IPersistFolder2* This)
1133 {
1134     return UnixFolder_IShellFolder2_AddRef(
1135                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1136 }
1137
1138 static ULONG WINAPI UnixFolder_IPersistFolder2_Release(IPersistFolder2* This)
1139 {
1140     return UnixFolder_IShellFolder2_Release(
1141                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1142 }
1143
1144 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetClassID(IPersistFolder2* This, CLSID* pClassID)
1145 {
1146     TRACE("stub\n");
1147     return E_NOTIMPL;
1148 }
1149
1150 static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* iface, LPCITEMIDLIST pidl)
1151 {
1152     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1153
1154     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
1155
1156     This->m_pidlLocation = ILClone(pidl);
1157
1158     pdump(pidl);
1159
1160     UNIXFS_pidl_to_path(pidl, This);
1161     UNIXFS_build_subfolder_pidls(This);
1162
1163     return S_OK;
1164 }
1165
1166 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetCurFolder(IPersistFolder2* iface, LPITEMIDLIST* ppidl)
1167 {
1168     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1169
1170     TRACE ("(iface=%p, ppidl=%p)\n", iface, ppidl);
1171
1172     if (!ppidl)
1173         return E_POINTER;
1174     *ppidl = ILClone (This->m_pidlLocation);
1175     return S_OK;
1176 }
1177
1178 /* VTable for UnixFolder's IPersistFolder interface.
1179  */
1180 static const IPersistFolder2Vtbl UnixFolder_IPersistFolder2_Vtbl = {
1181     UnixFolder_IPersistFolder2_QueryInterface,
1182     UnixFolder_IPersistFolder2_AddRef,
1183     UnixFolder_IPersistFolder2_Release,
1184     UnixFolder_IPersistFolder2_GetClassID,
1185     UnixFolder_IPersistFolder2_Initialize,
1186     UnixFolder_IPersistFolder2_GetCurFolder
1187 };
1188
1189 /******************************************************************************
1190  * Unix[Dos]Folder_Constructor [Internal]
1191  *
1192  * PARAMS
1193  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
1194  *  riid      [I] Interface asked for by the client.
1195  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
1196  *
1197  * NOTES
1198  *  Those are the only functions exported from shfldr_unixfs.c. They are called from
1199  *  shellole.c's default class factory and thus have to exhibit a LPFNCREATEINSTANCE
1200  *  compatible signature.
1201  *
1202  *  The UnixDosFolder_Constructor sets the dwPathMode member to PATHMODE_DOS. This
1203  *  means that paths are converted from dos to unix and back at the interfaces.
1204  */
1205 static HRESULT CreateUnixFolder(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv, DWORD dwPathMode) {
1206     HRESULT hr = E_FAIL;
1207     UnixFolder *pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
1208
1209     if(pUnixFolder) {
1210         pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
1211         pUnixFolder->lpIPersistFolder2Vtbl = &UnixFolder_IPersistFolder2_Vtbl;
1212         pUnixFolder->m_cRef = 0;
1213         pUnixFolder->m_pszPath = NULL;
1214         pUnixFolder->m_apidlSubDirs = NULL;
1215         pUnixFolder->m_cSubDirs = 0;
1216         pUnixFolder->m_dwPathMode = dwPathMode;
1217
1218         UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
1219         hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1220         UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1221     }
1222     return hr;
1223 }
1224
1225 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1226     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1227     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_UNIX);
1228 }
1229
1230 HRESULT WINAPI UnixDosFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1231     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1232     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_DOS);
1233 }
1234
1235 /******************************************************************************
1236  * UnixSubFolderIterator
1237  *
1238  * Class whose heap based objects represent iterators over the sub-directories
1239  * of a given UnixFolder object.
1240  */
1241
1242 /* UnixSubFolderIterator object layout and typedef.
1243  */
1244 typedef struct _UnixSubFolderIterator {
1245     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1246     ULONG m_cRef;
1247     UnixFolder *m_pUnixFolder;
1248     ULONG m_cIdx;
1249     SHCONTF m_fFilter;
1250 } UnixSubFolderIterator;
1251
1252 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1253     TRACE("(iterator=%p)\n", iterator);
1254
1255     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1256     SHFree(iterator);
1257 }
1258
1259 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1260     REFIID riid, void** ppv)
1261 {
1262     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1263
1264     if (!ppv) return E_INVALIDARG;
1265
1266     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1267         *ppv = iface;
1268     } else {
1269         *ppv = NULL;
1270         return E_NOINTERFACE;
1271     }
1272
1273     IEnumIDList_AddRef(iface);
1274     return S_OK;
1275 }
1276
1277 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1278 {
1279     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1280
1281     TRACE("(iface=%p)\n", iface);
1282
1283     return InterlockedIncrement(&This->m_cRef);
1284 }
1285
1286 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1287 {
1288     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1289     ULONG cRef;
1290
1291     TRACE("(iface=%p)\n", iface);
1292
1293     cRef = InterlockedDecrement(&This->m_cRef);
1294
1295     if (!cRef)
1296         UnixSubFolderIterator_Destroy(This);
1297
1298     return cRef;
1299 }
1300
1301 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1302     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1303 {
1304     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1305     ULONG i;
1306
1307     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1308
1309     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1310         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1311         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1312             rgelt[i] = ILClone(pCurrent);
1313             i++;
1314         }
1315     }
1316
1317     if (pceltFetched)
1318         *pceltFetched = i;
1319
1320     return i == celt ? S_OK : S_FALSE;
1321 }
1322
1323 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1324 {
1325     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1326     ULONG i;
1327
1328     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1329
1330     for (i=0; i < celt; i++) {
1331         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1332                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1333         {
1334             This->m_cIdx++;
1335         }
1336         This->m_cIdx++;
1337     }
1338
1339     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1340         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1341         return S_FALSE;
1342     } else {
1343         return S_OK;
1344     }
1345 }
1346
1347 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1348 {
1349     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1350
1351     TRACE("(iface=%p)\n", iface);
1352
1353     This->m_cIdx = 0;
1354
1355     return S_OK;
1356 }
1357
1358 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1359     IEnumIDList** ppenum)
1360 {
1361     TRACE("stub\n");
1362     return E_NOTIMPL;
1363 }
1364
1365 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1366  */
1367 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1368     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1369     UnixSubFolderIterator_IEnumIDList_AddRef,
1370     UnixSubFolderIterator_IEnumIDList_Release,
1371     UnixSubFolderIterator_IEnumIDList_Next,
1372     UnixSubFolderIterator_IEnumIDList_Skip,
1373     UnixSubFolderIterator_IEnumIDList_Reset,
1374     UnixSubFolderIterator_IEnumIDList_Clone
1375 };
1376
1377 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1378     UnixSubFolderIterator *iterator;
1379
1380     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1381
1382     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1383     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1384     iterator->m_cRef = 0;
1385     iterator->m_cIdx = 0;
1386     iterator->m_pUnixFolder = pUnixFolder;
1387     iterator->m_fFilter = fFilter;
1388
1389     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1390     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1391
1392     return (IUnknown*)iterator;
1393 }