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_rooted_at_desktop [Internal]
 111  *
 112  * Checks if the unixfs namespace extension is rooted at desktop level.
 113  *
 114  * RETURNS
 115  *  TRUE, if unixfs is rooted at desktop level
 116  *  FALSE, if not.
 117  */
 118 BOOL UNIXFS_is_rooted_at_desktop(void) {
 119     HKEY hKey;
 120     WCHAR *pwszCLSID_UnixDosFolder, wszRootedAtDesktop[69 + CHARS_IN_GUID] = {
 121         'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
 122         'W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 123         'E','x','p','l','o','r','e','r','\\','D','e','s','k','t','o','p','\\',
 124         'N','a','m','e','S','p','a','c','e','\\',0 };
 125
 126     if (FAILED(StringFromCLSID(&CLSID_UnixDosFolder, &pwszCLSID_UnixDosFolder)))
 127         return FALSE;
 128
 129     lstrcatW(wszRootedAtDesktop, pwszCLSID_UnixDosFolder);
 130     CoTaskMemFree(pwszCLSID_UnixDosFolder);
 131
 132     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, wszRootedAtDesktop, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
 133         return FALSE;
 134
 135     RegCloseKey(hKey);
 136     return TRUE;
 137 }
 138
 139 /******************************************************************************
 140  * UNIXFS_is_pidl_of_type [INTERNAL]
 141  *
 142  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
 143  *
 144  * PARAMS
 145  *  pIDL    [I] The ITEMIDLIST to be checked.
 146  *  fFilter [I] Shell condition flags, which specify the filter.
 147  *
 148  * RETURNS
 149  *  TRUE, if pIDL is accepted by fFilter
 150  *  FALSE, otherwise
 151  */
 152 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
 153     LPPIDLDATA pIDLData = _ILGetDataPointer(pIDL);
 154     if (!(fFilter & SHCONTF_INCLUDEHIDDEN) && pIDLData &&
 155         (pIDLData->u.file.uFileAttribs & FILE_ATTRIBUTE_HIDDEN))
 156     {
 157         return FALSE;
 158     }
 159     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
 160     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
 161     return FALSE;
 162 }
 163
 164 /******************************************************************************
 165  * UNIXFS_is_dos_device [Internal]
 166  *
 167  * Determines if a unix directory corresponds to any dos device.
 168  *
 169  * PARAMS
 170  *  statPath [I] The stat struct of the directory, as returned by stat(2).
 171  *
 172  * RETURNS
 173  *  TRUE, if statPath corresponds to any dos drive letter
 174  *  FALSE, otherwise
 175  */
 176 static BOOL UNIXFS_is_dos_device(const struct stat *statPath) {
 177     struct stat statDrive;
 178     char *pszDrivePath;
 179     DWORD dwDriveMap;
 180     WCHAR wszDosDevice[4] = { 'A', ':', '\\', 0 };
 181
 182     for (dwDriveMap = GetLogicalDrives(); dwDriveMap; dwDriveMap >>= 1, wszDosDevice[0]++) {
 183         if (!(dwDriveMap & 0x1)) continue;
 184         pszDrivePath = wine_get_unix_file_name(wszDosDevice);
 185         if (pszDrivePath && !stat(pszDrivePath, &statDrive)) {
 186             HeapFree(GetProcessHeap(), 0, pszDrivePath);
 187             if ((statPath->st_dev == statDrive.st_dev) && (statPath->st_ino == statDrive.st_ino))
 188                 return TRUE;
 189         }
 190     }
 191     return FALSE;
 192 }
 193
 194 /******************************************************************************
 195  * UNIXFS_get_unix_path [Internal]
 196  *
 197  * Convert an absolute dos path to an absolute canonicalized unix path.
 198  * Evaluate "/.", "/.." and symbolic links.
 199  *
 200  * PARAMS
 201  *  pszDosPath       [I] An absolute dos path
 202  *  pszCanonicalPath [O] Buffer of length FILENAME_MAX. Will receive the canonical path.
 203  *
 204  * RETURNS
 205  *  Success, TRUE
 206  *  Failure, FALSE - Path not existent, too long, insufficient rights, to many symlinks
 207  */
 208 static BOOL UNIXFS_get_unix_path(LPCWSTR pszDosPath, char *pszCanonicalPath)
 209 {
 210     char *pPathTail, *pElement, *pCanonicalTail, szPath[FILENAME_MAX], *pszUnixPath;
 211     struct stat fileStat;
 212
 213     TRACE("(pszDosPath=%s, pszCanonicalPath=%p)\n", debugstr_w(pszDosPath), pszCanonicalPath);
 214
 215     if (!pszDosPath || pszDosPath[1] != ':')
 216         return FALSE;
 217
 218     pszUnixPath = wine_get_unix_file_name(pszDosPath);
 219     if (!pszUnixPath) return FALSE;
 220     strcpy(szPath, pszUnixPath);
 221     HeapFree(GetProcessHeap(), 0, pszUnixPath);
 222
 223     /* pCanonicalTail always points to the end of the canonical path constructed
 224      * thus far. pPathTail points to the still to be processed part of the input
 225      * path. pElement points to the path element currently investigated.
 226      */
 227     *pszCanonicalPath = '\0';
 228     pCanonicalTail = pszCanonicalPath;
 229     pPathTail = szPath;
 230
 231     do {
 232         char cTemp;
 233         int cLinks = 0;
 234
 235         pElement = pPathTail;
 236         pPathTail = strchr(pPathTail+1, '/');
 237         if (!pPathTail) /* Last path element may not be terminated by '/'. */
 238             pPathTail = pElement + strlen(pElement);
 239         /* Temporarily terminate the current path element. Will be restored later. */
 240         cTemp = *pPathTail;
 241         *pPathTail = '\0';
 242
 243         /* Skip "/." path elements */
 244         if (!strcmp("/.", pElement)) {
 245             *pPathTail = cTemp;
 246             continue;
 247         }
 248
 249         /* Remove last element in canonical path for "/.." elements, then skip. */
 250         if (!strcmp("/..", pElement)) {
 251             char *pTemp = strrchr(pszCanonicalPath, '/');
 252             if (pTemp)
 253                 pCanonicalTail = pTemp;
 254             *pCanonicalTail = '\0';
 255             *pPathTail = cTemp;
 256             continue;
 257         }
 258
 259         /* lstat returns zero on success. */
 260         if (lstat(szPath, &fileStat))
 261             return FALSE;
 262
 263         if (S_ISLNK(fileStat.st_mode)) {
 264             char szSymlink[FILENAME_MAX];
 265             int cLinkLen, cTailLen;
 266
 267             /* Avoid infinite loop for recursive links. */
 268             if (++cLinks > 64)
 269                 return FALSE;
 270
 271             cLinkLen = readlink(szPath, szSymlink, FILENAME_MAX);
 272             if (cLinkLen < 0)
 273                 return FALSE;
 274
 275             *pPathTail = cTemp;
 276             cTailLen = strlen(pPathTail);
 277
 278             if (szSymlink[0] == '/') {
 279                 /* Absolute link. Copy to szPath, concat remaining path and start all over. */
 280                 if (cLinkLen + cTailLen + 1 > FILENAME_MAX)
 281                     return FALSE;
 282
 283                 memcpy(szSymlink + cLinkLen, pPathTail, cTailLen + 1);
 284                 memcpy(szPath, szSymlink, cLinkLen + cTailLen + 1);
 285                 *pszCanonicalPath = '\0';
 286                     pCanonicalTail = pszCanonicalPath;
 287                     pPathTail = szPath;
 288             } else {
 289                 /* Relative link. Expand into szPath and continue. */
 290                 char szTemp[FILENAME_MAX];
 291                 int cTailLen = strlen(pPathTail);
 292
 293                 if (pElement - szPath + 1 + cLinkLen + cTailLen + 1 > FILENAME_MAX)
 294                     return FALSE;
 295
 296                 memcpy(szTemp, pPathTail, cTailLen + 1);
 297                 memcpy(pElement + 1, szSymlink, cLinkLen);
 298                 memcpy(pElement + 1 + cLinkLen, szTemp, cTailLen + 1);
 299                 pPathTail = pElement;
 300             }
 301         } else {
 302             /* Regular directory or file. Copy to canonical path */
 303             if (pCanonicalTail - pszCanonicalPath + pPathTail - pElement + 1 > FILENAME_MAX)
 304                 return FALSE;
 305
 306             memcpy(pCanonicalTail, pElement, pPathTail - pElement + 1);
 307             pCanonicalTail += pPathTail - pElement;
 308             *pPathTail = cTemp;
 309         }
 310     } while (pPathTail[0] == '/' && pPathTail[1]); /* Also handles paths terminated by '/' */
 311
 312     TRACE("--> %s\n", debugstr_a(pszCanonicalPath));
 313
 314     return TRUE;
 315 }
 316
 317 /******************************************************************************
 318  * UNIXFS_build_shitemid [Internal]
 319  *
 320  * Constructs a new SHITEMID for the last component of path 'pszUnixPath' into
 321  * buffer 'pIDL'. Decorates the SHITEMID with information from a stat system call.
 322  *
 323  * PARAMS
 324  *  pszUnixPath [I] An absolute path. The SHITEMID will be build for the last component.
 325  *  bParentIsFS [I] Set, if the parent of the last path component is within the wine filesystem.
 326  *  pIDL        [O] SHITEMID will be constructed here.
 327  *
 328  * RETURNS
 329  *  Success: A pointer to the terminating '\0' character of path.
 330  *  Failure: NULL
 331  *
 332  * NOTES
 333  *  Minimum size of pIDL is SHITEMID_LEN_FROM_NAME_LEN(strlen(last_component_of_path)).
 334  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 335  *  a 0 USHORT value.
 336  */
 337 static char* UNIXFS_build_shitemid(char *pszUnixPath, BOOL bParentIsFS, void *pIDL) {
 338     LARGE_INTEGER time;
 339     FILETIME fileTime;
 340     LPPIDLDATA pIDLData;
 341     struct stat fileStat;
 342     StatStruct *pStatStruct;
 343     char *pszComponent;
 344     int cComponentLen;
 345
 346     TRACE("(pszUnixPath=%s, pIDL=%p)\n", debugstr_a(pszUnixPath), pIDL);
 347
 348     /* Compute the SHITEMID's length and wipe it. */
 349     pszComponent = strrchr(pszUnixPath, '/') + 1;
 350     cComponentLen = strlen(pszComponent);
 351     memset(pIDL, 0, SHITEMID_LEN_FROM_NAME_LEN(cComponentLen));
 352     ((LPSHITEMID)pIDL)->cb = SHITEMID_LEN_FROM_NAME_LEN(cComponentLen) ;
 353
 354     /* We are only interested in regular files and directories. */
 355     if (stat(pszUnixPath, &fileStat)) return NULL;
 356     if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) return NULL;
 357
 358     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pIDL);
 359     pStatStruct->st_mode = fileStat.st_mode;
 360     pStatStruct->st_uid = fileStat.st_uid;
 361     pStatStruct->st_gid = fileStat.st_gid;
 362     pStatStruct->sfAttr = S_ISDIR(fileStat.st_mode) ? (SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR) : 0;
 363     if (bParentIsFS || UNIXFS_is_dos_device(&fileStat)) pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
 364
 365     /* Set shell32's standard SHITEMID data fields. */
 366     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)pIDL);
 367     pIDLData->type = S_ISDIR(fileStat.st_mode) ? PT_FOLDER : PT_VALUE;
 368     pIDLData->u.file.dwFileSize = (DWORD)fileStat.st_size;
 369     RtlSecondsSince1970ToTime( fileStat.st_mtime, &time );
 370     fileTime.dwLowDateTime = time.u.LowPart;
 371     fileTime.dwHighDateTime = time.u.HighPart;
 372     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 373     pIDLData->u.file.uFileAttribs = 0;
 374     if (S_ISDIR(fileStat.st_mode)) pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
 375     if (pszComponent[0] == '.') pIDLData->u.file.uFileAttribs |=  FILE_ATTRIBUTE_HIDDEN;
 376     memcpy(pIDLData->u.file.szNames, pszComponent, cComponentLen);
 377
 378     return pszComponent + cComponentLen;
 379 }
 380
 381 /******************************************************************************
 382  * UNIXFS_path_to_pidl [Internal]
 383  *
 384  * PARAMS
 385  *  pUnixFolder [I] If path is relative, pUnixFolder represents the base path
 386  *  path        [I] An absolute unix or dos path or a path relativ to pUnixFolder
 387  *  ppidl       [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 388  *
 389  * RETURNS
 390  *  Success: TRUE
 391  *  Failure: FALSE, invalid params or out of memory
 392  *
 393  * NOTES
 394  *  pUnixFolder also carries the information if the path is expected to be unix or dos.
 395  */
 396 static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPITEMIDLIST *ppidl) {
 397     LPITEMIDLIST pidl;
 398     int cSubDirs, cPidlLen, cPathLen;
 399     char *pSlash, szCompletePath[FILENAME_MAX], *pNextPathElement;
 400     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 401
 402     TRACE("pUnixFolder=%p, path=%s, ppidl=%p\n", pUnixFolder, debugstr_w(path), ppidl);
 403
 404     if (!ppidl || !path)
 405         return FALSE;
 406
 407     /* Build an absolute path and let pNextPathElement point to the interesting
 408      * relative sub-path. We need the absolute path to call 'stat', but the pidl
 409      * will only contain the relative part.
 410      */
 411     if ((pUnixFolder->m_dwPathMode == PATHMODE_DOS) && (path[1] == ':'))
 412     {
 413         /* Absolute dos path. Convert to unix */
 414         if (!UNIXFS_get_unix_path(path, szCompletePath))
 415             return FALSE;
 416         pNextPathElement = szCompletePath;
 417     }
 418     else if ((pUnixFolder->m_dwPathMode == PATHMODE_UNIX) && (path[0] == '/'))
 419     {
 420         /* Absolute unix path. Just convert to ANSI. */
 421         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath, FILENAME_MAX, NULL, NULL);
 422         pNextPathElement = szCompletePath;
 423     }
 424     else
 425     {
 426         /* Relative dos or unix path. Concat with this folder's path */
 427         int cBasePathLen = strlen(pUnixFolder->m_pszPath);
 428         memcpy(szCompletePath, pUnixFolder->m_pszPath, cBasePathLen);
 429         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath + cBasePathLen,
 430                             FILENAME_MAX - cBasePathLen, NULL, NULL);
 431         pNextPathElement = szCompletePath + cBasePathLen - 1;
 432
 433         /* If in dos mode, replace '\' with '/' */
 434         if (pUnixFolder->m_dwPathMode == PATHMODE_DOS) {
 435             char *pBackslash = strchr(pNextPathElement, '\\');
 436             while (pBackslash) {
 437                 *pBackslash = '/';
 438                 pBackslash = strchr(pBackslash, '\\');
 439             }
 440         }
 441     }
 442
 443     /* Remove trailing slash, if present */
 444     cPathLen = strlen(szCompletePath);
 445     if (szCompletePath[cPathLen-1] == '/')
 446         szCompletePath[cPathLen-1] = '\0';
 447
 448     if ((szCompletePath[0] != '/') || (pNextPathElement[0] != '/')) {
 449         ERR("szCompletePath: %s, pNextPathElment: %s\n", szCompletePath, pNextPathElement);
 450         return FALSE;
 451     }
 452
 453     /* At this point, we have an absolute unix path in szCompletePath
 454      * and the relative portion of it in pNextPathElement. Both starting with '/'
 455      * and _not_ terminated by a '/'. */
 456     TRACE("complete path: %s, relative path: %s\n", szCompletePath, pNextPathElement);
 457
 458     /* Count the number of sub-directories in the path */
 459     cSubDirs = 0;
 460     pSlash = pNextPathElement;
 461     while (pSlash) {
 462         cSubDirs++;
 463         pSlash = strchr(pSlash+1, '/');
 464     }
 465
 466     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 467      * characters, which are not stored in the ITEMIDLIST. */
 468     cPidlLen = strlen(pNextPathElement) - cSubDirs + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 469     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 470     if (!pidl) return FALSE;
 471
 472     /* Concatenate the SHITEMIDs of the sub-directories. */
 473     while (*pNextPathElement) {
 474         pSlash = strchr(pNextPathElement+1, '/');
 475         if (pSlash) *pSlash = '\0';
 476         pNextPathElement = UNIXFS_build_shitemid(szCompletePath, bParentIsFS, pidl);
 477         if (pSlash) *pSlash = '/';
 478
 479         if (!pNextPathElement) {
 480             SHFree(pidl);
 481             return FALSE;
 482         }
 483         if (!bParentIsFS && (LPSTATSTRUCT_FROM_LPSHITEMID(pidl)->sfAttr & SFGAO_FILESYSTEM))
 484             bParentIsFS = TRUE;
 485         pidl = ILGetNext(pidl);
 486     }
 487     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 488
 489     if ((int)pidl-(int)*ppidl+sizeof(USHORT) != cPidlLen) /* We've corrupted the heap :( */
 490         ERR("Computed length of pidl incorrect. Please report.\n");
 491
 492     return TRUE;
 493 }
 494
 495 /******************************************************************************
 496  * UNIXFS_pidl_to_path [Internal]
 497  *
 498  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 499  *
 500  * PARAMS
 501  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 502  *  path [O] The corresponding unix path as a zero terminated ascii string
 503  *
 504  * RETURNS
 505  *  Success: TRUE
 506  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 507  */
 508 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, UnixFolder *pUnixFolder) {
 509     LPCITEMIDLIST current = pidl, root;
 510     DWORD dwPathLen;
 511     char *pNextDir, szBasePath[FILENAME_MAX] = "/";
 512
 513     TRACE("(pidl=%p, pUnixFolder=%p)\n", pidl, pUnixFolder);
 514     pdump(pidl);
 515
 516     pUnixFolder->m_pszPath = NULL;
 517
 518     /* Find the UnixFolderClass root */
 519     while (current->mkid.cb) {
 520         if (_ILIsDrive(current) || /* The dos drive, which maps to '/' */
 521             (_ILIsSpecialFolder(current) &&
 522              (IsEqualIID(&CLSID_UnixFolder, _ILGetGUIDPointer(current)) ||
 523               IsEqualIID(&CLSID_UnixDosFolder, _ILGetGUIDPointer(current)))))
 524         {
 525             break;
 526         }
 527         current = ILGetNext(current);
 528     }
 529
 530     if (current && current->mkid.cb) {
 531         root = current = ILGetNext(current);
 532         dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 533     } else if (_ILIsDesktop(pidl) || _ILIsValue(pidl) || _ILIsFolder(pidl)) {
 534         /* Path rooted at Desktop */
 535         WCHAR wszDesktopPath[MAX_PATH];
 536         if (FAILED(SHGetSpecialFolderPathW(0, wszDesktopPath, CSIDL_DESKTOP, FALSE)))
 537            return FALSE;
 538         if (!UNIXFS_get_unix_path(wszDesktopPath, szBasePath))
 539             return FALSE;
 540         dwPathLen = strlen(szBasePath) + 1;
 541         root = current;
 542     } else {
 543         ERR("Unknown pidl type!\n");
 544         pdump(pidl);
 545         return FALSE;
 546     }
 547
 548     /* Determine the path's length bytes */
 549     while (current && current->mkid.cb) {
 550         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 551         current = ILGetNext(current);
 552     };
 553
 554     /* Build the path */
 555     pUnixFolder->m_pszPath = pNextDir = SHAlloc(dwPathLen);
 556     if (!pUnixFolder->m_pszPath) {
 557         WARN("SHAlloc failed!\n");
 558         return FALSE;
 559     }
 560     current = root;
 561     strcpy(pNextDir, szBasePath);
 562     pNextDir += strlen(szBasePath);
 563     while (current && current->mkid.cb) {
 564         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 565         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 566         *pNextDir++ = '/';
 567         current = ILGetNext(current);
 568     }
 569     *pNextDir='\0';
 570
 571     TRACE("--> %s\n", pUnixFolder->m_pszPath);
 572     return TRUE;
 573 }
 574
 575 /******************************************************************************
 576  * UNIXFS_build_subfolder_pidls [Internal]
 577  *
 578  * Builds an array of subfolder PIDLs relative to a unix directory
 579  *
 580  * PARAMS
 581  *  path   [I] Name of a unix directory as a zero terminated ascii string
 582  *  apidl  [O] The array of PIDLs
 583  *  pCount [O] Size of apidl
 584  *
 585  * RETURNS
 586  *  Success: TRUE
 587  *  Failure: FALSE, path is not a valid unix directory or out of memory
 588  *
 589  * NOTES
 590  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 591  *  to release each PIDL as well as the array itself with SHFree.
 592  */
 593 static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
 594 {
 595     struct dirent *pDirEntry;
 596     struct stat fileStat;
 597     DIR *dir;
 598     DWORD cDirEntries, i;
 599     USHORT sLen;
 600     char *pszFQPath;
 601     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 602
 603     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 604
 605     pUnixFolder->m_apidlSubDirs = NULL;
 606     pUnixFolder->m_cSubDirs = 0;
 607
 608     if (pUnixFolder->m_pidlLocation) {
 609         StatStruct *statStruct =
 610             LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(pUnixFolder->m_pidlLocation));
 611         if (statStruct) bParentIsFS = statStruct->sfAttr & SFGAO_FILESYSTEM;
 612     }
 613
 614     dir = opendir(pUnixFolder->m_pszPath);
 615     if (!dir) {
 616         WARN("Failed to open directory '%s'.\n", pUnixFolder->m_pszPath);
 617         return FALSE;
 618     }
 619
 620     /* Allocate space for fully qualified paths */
 621     pszFQPath = SHAlloc(strlen(pUnixFolder->m_pszPath) + PATH_MAX);
 622     if (!pszFQPath) {
 623         WARN("SHAlloc failed!\n");
 624         return FALSE;
 625     }
 626
 627     /* Count number of directory entries. */
 628     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 629         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 630         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 631         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 632     }
 633
 634     /* If there are no entries, we are done. */
 635     if (cDirEntries == 0) {
 636         closedir(dir);
 637         SHFree(pszFQPath);
 638         return TRUE;
 639     }
 640
 641     /* Allocate the array of PIDLs */
 642     pUnixFolder->m_apidlSubDirs = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 643     if (!pUnixFolder->m_apidlSubDirs) {
 644         WARN("SHAlloc failed!\n");
 645         return FALSE;
 646     }
 647
 648     /* Allocate and initialize one SHITEMID per sub-directory. */
 649     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 650         LPSHITEMID pid;
 651
 652         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 653
 654         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 655
 656         sLen = strlen(pDirEntry->d_name);
 657         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 658         if (!pid) {
 659             WARN("SHAlloc failed!\n");
 660             return FALSE;
 661         }
 662         if (!UNIXFS_build_shitemid(pszFQPath, bParentIsFS, pid)) {
 663             SHFree(pid);
 664             continue;
 665         }
 666         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 667
 668         pUnixFolder->m_apidlSubDirs[i++] = (LPITEMIDLIST)pid;
 669     }
 670
 671     pUnixFolder->m_cSubDirs = i;
 672     closedir(dir);
 673     SHFree(pszFQPath);
 674
 675     return TRUE;
 676 }
 677
 678 /******************************************************************************
 679  * UnixFolder
 680  *
 681  * Class whose heap based instances represent unix filesystem directories.
 682  */
 683
 684 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 685     DWORD i;
 686
 687     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 688
 689     if (pUnixFolder->m_apidlSubDirs)
 690         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 691             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 692     SHFree(pUnixFolder->m_apidlSubDirs);
 693     SHFree(pUnixFolder->m_pszPath);
 694     ILFree(pUnixFolder->m_pidlLocation);
 695     SHFree(pUnixFolder);
 696 }
 697
 698 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 699     void **ppv)
 700 {
 701     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 702
 703     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 704
 705     if (!ppv) return E_INVALIDARG;
 706
 707     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 708         IsEqualIID(&IID_IShellFolder2, riid))
 709     {
 710         *ppv = &This->lpIShellFolder2Vtbl;
 711     } else if (IsEqualIID(&IID_IPersistFolder2, riid) || IsEqualIID(&IID_IPersistFolder, riid) ||
 712                IsEqualIID(&IID_IPersist, riid))
 713     {
 714         *ppv = &This->lpIPersistFolder2Vtbl;
 715     } else {
 716         *ppv = NULL;
 717         return E_NOINTERFACE;
 718     }
 719
 720     IUnknown_AddRef((IUnknown*)*ppv);
 721     return S_OK;
 722 }
 723
 724 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 725     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 726
 727     TRACE("(iface=%p)\n", iface);
 728
 729     return InterlockedIncrement(&This->m_cRef);
 730 }
 731
 732 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 733     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 734     ULONG cRef;
 735
 736     TRACE("(iface=%p)\n", iface);
 737
 738     cRef = InterlockedDecrement(&This->m_cRef);
 739
 740     if (!cRef)
 741         UnixFolder_Destroy(This);
 742
 743     return cRef;
 744 }
 745
 746 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 747     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 748     ULONG* pdwAttributes)
 749 {
 750     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 751     BOOL result;
 752
 753     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 754           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 755           pchEaten, ppidl, pdwAttributes);
 756
 757     result = UNIXFS_path_to_pidl(This, lpszDisplayName, ppidl);
 758     if (result && pdwAttributes && *pdwAttributes)
 759     {
 760         /* need to traverse to the last element for the attribute */
 761         LPCITEMIDLIST pidl, last_pidl;
 762         pidl = last_pidl = *ppidl;
 763         while(pidl && pidl->mkid.cb)
 764         {
 765             last_pidl = pidl;
 766             pidl = ILGetNext(pidl);
 767         }
 768         SHELL32_GetItemAttributes((IShellFolder*)iface, last_pidl, pdwAttributes);
 769     }
 770
 771     if (!result) TRACE("FAILED!\n");
 772     return result ? S_OK : E_FAIL;
 773 }
 774
 775 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 776
 777 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 778     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 779 {
 780     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 781     IUnknown *newIterator;
 782     HRESULT hr;
 783
 784     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 785             iface, hwndOwner, grfFlags, ppEnumIDList);
 786
 787     if (This->m_cSubDirs == -1)
 788         UNIXFS_build_subfolder_pidls(This);
 789
 790     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 791     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 792     IUnknown_Release(newIterator);
 793
 794     return hr;
 795 }
 796
 797 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 798     LPBC pbcReserved, REFIID riid, void** ppvOut)
 799 {
 800     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 801     IPersistFolder2 *persistFolder;
 802     LPITEMIDLIST pidlSubFolder;
 803     HRESULT hr;
 804
 805     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 806             iface, pidl, pbcReserved, riid, ppvOut);
 807
 808     if (!pidl || !pidl->mkid.cb)
 809         return E_INVALIDARG;
 810
 811     if (This->m_dwPathMode == PATHMODE_DOS)
 812         hr = UnixDosFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 813     else
 814         hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 815
 816     if (!SUCCEEDED(hr)) return hr;
 817     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 818
 819     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 820     IPersistFolder2_Initialize(persistFolder, pidlSubFolder);
 821     IPersistFolder2_Release(persistFolder);
 822     ILFree(pidlSubFolder);
 823
 824     return hr;
 825 }
 826
 827 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 828     LPBC pbcReserved, REFIID riid, void** ppvObj)
 829 {
 830     TRACE("stub\n");
 831     return E_NOTIMPL;
 832 }
 833
 834 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 835     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 836 {
 837     BOOL isEmpty1, isEmpty2;
 838     HRESULT hr = E_FAIL;
 839     LPITEMIDLIST firstpidl;
 840     IShellFolder2 *psf;
 841     int compare;
 842
 843     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 844
 845     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 846     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 847
 848     if (isEmpty1 && isEmpty2)
 849         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 850     else if (isEmpty1)
 851         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 852     else if (isEmpty2)
 853         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 854
 855     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 856         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 857     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 858         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 859
 860     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 861                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 862                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 863
 864     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 865         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)((compare == CSTR_LESS_THAN)?-1:1));
 866
 867     if (pidl1->mkid.cb < pidl2->mkid.cb)
 868         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 869     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 870         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 871
 872     firstpidl = ILCloneFirst(pidl1);
 873     pidl1 = ILGetNext(pidl1);
 874     pidl2 = ILGetNext(pidl2);
 875
 876     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 877     if (SUCCEEDED(hr)) {
 878         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 879         IShellFolder2_Release(psf);
 880     }
 881
 882     ILFree(firstpidl);
 883     return hr;
 884 }
 885
 886 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 887     REFIID riid, void** ppv)
 888 {
 889     HRESULT hr = E_INVALIDARG;
 890
 891     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 892
 893     if (!ppv) return E_INVALIDARG;
 894     *ppv = NULL;
 895
 896     if (IsEqualIID(&IID_IShellView, riid)) {
 897         LPSHELLVIEW pShellView;
 898
 899         pShellView = IShellView_Constructor((IShellFolder*)iface);
 900         if (pShellView) {
 901             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 902             IShellView_Release(pShellView);
 903         }
 904     }
 905
 906     return hr;
 907 }
 908
 909 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 910     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 911 {
 912     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 913     const StatStruct *pStatStruct;
 914
 915     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p)\n", iface, cidl, apidl, rgfInOut);
 916
 917     if (!rgfInOut || (cidl && !apidl))
 918         return E_INVALIDARG;
 919
 920     if (cidl == 0) {
 921         if (!strcmp(This->m_pszPath, "/")) {
 922             *rgfInOut &= dwRootAttr;
 923         } else {
 924             pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(This->m_pidlLocation));
 925             if (!pStatStruct) return E_FAIL;
 926             *rgfInOut &= pStatStruct->sfAttr;
 927         }
 928     } else {
 929         UINT i;
 930         for (i=0; i<cidl; i++) {
 931             pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(apidl[i]);
 932             if (!pStatStruct) return E_INVALIDARG;
 933             *rgfInOut &= pStatStruct->sfAttr;
 934         }
 935     }
 936
 937     return S_OK;
 938 }
 939
 940 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 941     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 942 {
 943     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 944
 945     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 946         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 947
 948     if (IsEqualIID(&IID_IContextMenu, riid)) {
 949         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 950         return S_OK;
 951     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 952         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 953         return S_OK;
 954     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 955         LPITEMIDLIST pidl;
 956         if (cidl != 1) return E_FAIL;
 957         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 958         *ppvOut = (LPVOID)IExtractIconA_Constructor(pidl);
 959         SHFree(pidl);
 960         return S_OK;
 961     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 962         LPITEMIDLIST pidl;
 963         if (cidl != 1) return E_FAIL;
 964         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 965         *ppvOut = (LPVOID)IExtractIconW_Constructor(pidl);
 966         SHFree(pidl);
 967         return S_OK;
 968     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 969         FIXME("IDropTarget\n");
 970         return E_FAIL;
 971     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 972         FIXME("IShellLinkW\n");
 973         return E_FAIL;
 974     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
 975         FIXME("IShellLinkA\n");
 976         return E_FAIL;
 977     } else {
 978         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
 979         return E_NOINTERFACE;
 980     }
 981 }
 982
 983 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
 984     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
 985 {
 986     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 987     HRESULT hr = S_OK;
 988
 989     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
 990
 991     if ((GET_SHGDN_FOR(uFlags) & SHGDN_FORPARSING) &&
 992         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
 993     {
 994         if (!pidl->mkid.cb) {
 995             lpName->uType = STRRET_CSTR;
 996             strcpy(lpName->u.cStr, This->m_pszPath);
 997             if (This->m_dwPathMode == PATHMODE_DOS) {
 998                 char path[MAX_PATH];
 999                 GetFullPathNameA(lpName->u.cStr, MAX_PATH, path, NULL);
1000                 PathRemoveBackslashA(path);
1001                 strcpy(lpName->u.cStr, path);
1002             }
1003         } else {
1004             IShellFolder *pSubFolder;
1005             USHORT emptyIDL = 0;
1006
1007             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
1008             if (!SUCCEEDED(hr)) return hr;
1009
1010             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
1011             IShellFolder_Release(pSubFolder);
1012         }
1013     } else {
1014         char *pszFileName = _ILGetTextPointer(pidl);
1015         lpName->uType = STRRET_CSTR;
1016         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
1017     }
1018
1019     TRACE("--> %s\n", lpName->u.cStr);
1020
1021     return hr;
1022 }
1023
1024 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* This, HWND hwnd,
1025     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
1026 {
1027     TRACE("stub\n");
1028     return E_NOTIMPL;
1029 }
1030
1031 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
1032     IEnumExtraSearch **ppEnum)
1033 {
1034     TRACE("stub\n");
1035     return E_NOTIMPL;
1036 }
1037
1038 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
1039     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
1040 {
1041     TRACE("stub\n");
1042     return E_NOTIMPL;
1043 }
1044
1045 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
1046     UINT iColumn, SHCOLSTATEF *pcsFlags)
1047 {
1048     TRACE("stub\n");
1049     return E_NOTIMPL;
1050 }
1051
1052 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
1053     GUID *pguid)
1054 {
1055     TRACE("stub\n");
1056     return E_NOTIMPL;
1057 }
1058
1059 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
1060     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
1061 {
1062     TRACE("stub\n");
1063     return E_NOTIMPL;
1064 }
1065
1066 #define SHELLVIEWCOLUMNS 6
1067
1068 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
1069     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
1070 {
1071     HRESULT hr = E_FAIL;
1072     struct passwd *pPasswd;
1073     struct group *pGroup;
1074     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
1075         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
1076         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
1077         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1078         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1079         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
1080         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
1081     };
1082
1083     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
1084
1085     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
1086         return E_INVALIDARG;
1087
1088     if (!pidl) {
1089         psd->fmt = SFHeader[iColumn].fmt;
1090         psd->cxChar = SFHeader[iColumn].cxChar;
1091         psd->str.uType = STRRET_CSTR;
1092         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
1093         return S_OK;
1094     } else {
1095         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
1096         psd->str.u.cStr[0] = '\0';
1097         psd->str.uType = STRRET_CSTR;
1098         switch (iColumn) {
1099             case 0:
1100                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
1101                 break;
1102             case 1:
1103                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
1104                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
1105                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
1106                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
1107                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
1108                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
1109                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
1110                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
1111                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
1112                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
1113                 psd->str.u.cStr[10] = '\0';
1114                 break;
1115             case 2:
1116                 pPasswd = getpwuid(pStatStruct->st_uid);
1117                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
1118                 break;
1119             case 3:
1120                 pGroup = getgrgid(pStatStruct->st_gid);
1121                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
1122                 break;
1123             case 4:
1124                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
1125                 break;
1126             case 5:
1127                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
1128                 break;
1129         }
1130     }
1131
1132     return hr;
1133 }
1134
1135 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
1136     SHCOLUMNID *pscid)
1137 {
1138     TRACE("stub\n");
1139     return E_NOTIMPL;
1140 }
1141
1142 /* VTable for UnixFolder's IShellFolder2 interface.
1143  */
1144 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
1145     UnixFolder_IShellFolder2_QueryInterface,
1146     UnixFolder_IShellFolder2_AddRef,
1147     UnixFolder_IShellFolder2_Release,
1148     UnixFolder_IShellFolder2_ParseDisplayName,
1149     UnixFolder_IShellFolder2_EnumObjects,
1150     UnixFolder_IShellFolder2_BindToObject,
1151     UnixFolder_IShellFolder2_BindToStorage,
1152     UnixFolder_IShellFolder2_CompareIDs,
1153     UnixFolder_IShellFolder2_CreateViewObject,
1154     UnixFolder_IShellFolder2_GetAttributesOf,
1155     UnixFolder_IShellFolder2_GetUIObjectOf,
1156     UnixFolder_IShellFolder2_GetDisplayNameOf,
1157     UnixFolder_IShellFolder2_SetNameOf,
1158     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
1159     UnixFolder_IShellFolder2_EnumSearches,
1160     UnixFolder_IShellFolder2_GetDefaultColumn,
1161     UnixFolder_IShellFolder2_GetDefaultColumnState,
1162     UnixFolder_IShellFolder2_GetDetailsEx,
1163     UnixFolder_IShellFolder2_GetDetailsOf,
1164     UnixFolder_IShellFolder2_MapColumnToSCID
1165 };
1166
1167 static HRESULT WINAPI UnixFolder_IPersistFolder2_QueryInterface(IPersistFolder2* This, REFIID riid,
1168     void** ppvObject)
1169 {
1170     return UnixFolder_IShellFolder2_QueryInterface(
1171                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This), riid, ppvObject);
1172 }
1173
1174 static ULONG WINAPI UnixFolder_IPersistFolder2_AddRef(IPersistFolder2* This)
1175 {
1176     return UnixFolder_IShellFolder2_AddRef(
1177                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1178 }
1179
1180 static ULONG WINAPI UnixFolder_IPersistFolder2_Release(IPersistFolder2* This)
1181 {
1182     return UnixFolder_IShellFolder2_Release(
1183                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1184 }
1185
1186 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetClassID(IPersistFolder2* This, CLSID* pClassID)
1187 {
1188     TRACE("stub\n");
1189     return E_NOTIMPL;
1190 }
1191
1192 static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* iface, LPCITEMIDLIST pidl)
1193 {
1194     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1195
1196     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
1197
1198     This->m_pidlLocation = ILClone(pidl);
1199
1200     pdump(pidl);
1201
1202     if (!UNIXFS_pidl_to_path(pidl, This))
1203         return E_FAIL;
1204
1205     if (!strcmp(This->m_pszPath, "/")) {
1206         struct stat statRoot;
1207         if (stat(This->m_pszPath, &statRoot)) return E_FAIL;
1208         dwRootAttr = SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR;
1209         if (UNIXFS_is_dos_device(&statRoot)) dwRootAttr |= SFGAO_FILESYSTEM;
1210     }
1211
1212     return S_OK;
1213 }
1214
1215 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetCurFolder(IPersistFolder2* iface, LPITEMIDLIST* ppidl)
1216 {
1217     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1218
1219     TRACE ("(iface=%p, ppidl=%p)\n", iface, ppidl);
1220
1221     if (!ppidl)
1222         return E_POINTER;
1223     *ppidl = ILClone (This->m_pidlLocation);
1224     return S_OK;
1225 }
1226
1227 /* VTable for UnixFolder's IPersistFolder interface.
1228  */
1229 static const IPersistFolder2Vtbl UnixFolder_IPersistFolder2_Vtbl = {
1230     UnixFolder_IPersistFolder2_QueryInterface,
1231     UnixFolder_IPersistFolder2_AddRef,
1232     UnixFolder_IPersistFolder2_Release,
1233     UnixFolder_IPersistFolder2_GetClassID,
1234     UnixFolder_IPersistFolder2_Initialize,
1235     UnixFolder_IPersistFolder2_GetCurFolder
1236 };
1237
1238 /******************************************************************************
1239  * Unix[Dos]Folder_Constructor [Internal]
1240  *
1241  * PARAMS
1242  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
1243  *  riid      [I] Interface asked for by the client.
1244  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
1245  *
1246  * NOTES
1247  *  Those are the only functions exported from shfldr_unixfs.c. They are called from
1248  *  shellole.c's default class factory and thus have to exhibit a LPFNCREATEINSTANCE
1249  *  compatible signature.
1250  *
1251  *  The UnixDosFolder_Constructor sets the dwPathMode member to PATHMODE_DOS. This
1252  *  means that paths are converted from dos to unix and back at the interfaces.
1253  */
1254 static HRESULT CreateUnixFolder(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv, DWORD dwPathMode) {
1255     HRESULT hr = E_FAIL;
1256     UnixFolder *pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
1257
1258     if(pUnixFolder) {
1259         pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
1260         pUnixFolder->lpIPersistFolder2Vtbl = &UnixFolder_IPersistFolder2_Vtbl;
1261         pUnixFolder->m_cRef = 0;
1262         pUnixFolder->m_pszPath = NULL;
1263         pUnixFolder->m_apidlSubDirs = NULL;
1264         pUnixFolder->m_cSubDirs = -1;
1265         pUnixFolder->m_dwPathMode = dwPathMode;
1266
1267         UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
1268         hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1269         UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1270     }
1271     return hr;
1272 }
1273
1274 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1275     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1276     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_UNIX);
1277 }
1278
1279 HRESULT WINAPI UnixDosFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1280     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1281     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_DOS);
1282 }
1283
1284 /******************************************************************************
1285  * UnixSubFolderIterator
1286  *
1287  * Class whose heap based objects represent iterators over the sub-directories
1288  * of a given UnixFolder object.
1289  */
1290
1291 /* UnixSubFolderIterator object layout and typedef.
1292  */
1293 typedef struct _UnixSubFolderIterator {
1294     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1295     ULONG m_cRef;
1296     UnixFolder *m_pUnixFolder;
1297     ULONG m_cIdx;
1298     SHCONTF m_fFilter;
1299 } UnixSubFolderIterator;
1300
1301 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1302     TRACE("(iterator=%p)\n", iterator);
1303
1304     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1305     SHFree(iterator);
1306 }
1307
1308 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1309     REFIID riid, void** ppv)
1310 {
1311     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1312
1313     if (!ppv) return E_INVALIDARG;
1314
1315     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1316         *ppv = iface;
1317     } else {
1318         *ppv = NULL;
1319         return E_NOINTERFACE;
1320     }
1321
1322     IEnumIDList_AddRef(iface);
1323     return S_OK;
1324 }
1325
1326 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1327 {
1328     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1329
1330     TRACE("(iface=%p)\n", iface);
1331
1332     return InterlockedIncrement(&This->m_cRef);
1333 }
1334
1335 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1336 {
1337     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1338     ULONG cRef;
1339
1340     TRACE("(iface=%p)\n", iface);
1341
1342     cRef = InterlockedDecrement(&This->m_cRef);
1343
1344     if (!cRef)
1345         UnixSubFolderIterator_Destroy(This);
1346
1347     return cRef;
1348 }
1349
1350 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1351     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1352 {
1353     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1354     ULONG i;
1355
1356     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1357
1358     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1359         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1360         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1361             rgelt[i] = ILClone(pCurrent);
1362             i++;
1363         }
1364     }
1365
1366     if (pceltFetched)
1367         *pceltFetched = i;
1368
1369     return i == celt ? S_OK : S_FALSE;
1370 }
1371
1372 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1373 {
1374     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1375     ULONG i;
1376
1377     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1378
1379     for (i=0; i < celt; i++) {
1380         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1381                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1382         {
1383             This->m_cIdx++;
1384         }
1385         This->m_cIdx++;
1386     }
1387
1388     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1389         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1390         return S_FALSE;
1391     } else {
1392         return S_OK;
1393     }
1394 }
1395
1396 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1397 {
1398     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1399
1400     TRACE("(iface=%p)\n", iface);
1401
1402     This->m_cIdx = 0;
1403
1404     return S_OK;
1405 }
1406
1407 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1408     IEnumIDList** ppenum)
1409 {
1410     TRACE("stub\n");
1411     return E_NOTIMPL;
1412 }
1413
1414 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1415  */
1416 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1417     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1418     UnixSubFolderIterator_IEnumIDList_AddRef,
1419     UnixSubFolderIterator_IEnumIDList_Release,
1420     UnixSubFolderIterator_IEnumIDList_Next,
1421     UnixSubFolderIterator_IEnumIDList_Skip,
1422     UnixSubFolderIterator_IEnumIDList_Reset,
1423     UnixSubFolderIterator_IEnumIDList_Clone
1424 };
1425
1426 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1427     UnixSubFolderIterator *iterator;
1428
1429     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1430
1431     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1432     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1433     iterator->m_cRef = 0;
1434     iterator->m_cIdx = 0;
1435     iterator->m_pUnixFolder = pUnixFolder;
1436     iterator->m_fFilter = fFilter;
1437
1438     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1439     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1440
1441     return (IUnknown*)iterator;
1442 }