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 "shellfolder.h"
  53 #include "shfldr.h"
  54 #include "shresdef.h"
  55 #include "pidl.h"
  56
  57 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  58
  59 const GUID CLSID_UnixFolder = {0xcc702eb2, 0x7dc5, 0x11d9, {0xc6, 0x87, 0x00, 0x04, 0x23, 0x8a, 0x01, 0xcd}};
  60 const GUID CLSID_UnixDosFolder = {0x9d20aae8, 0x0625, 0x44b0, {0x9c, 0xa7, 0x71, 0x88, 0x9c, 0x22, 0x54, 0xd9}};
  61
  62 #define ADJUST_THIS(c,m,p) ((c*)(((long)p)-(long)&(((c*)0)->lp##m##Vtbl)))
  63 #define STATIC_CAST(i,p) ((i*)&p->lp##i##Vtbl)
  64
  65 /* FileStruct reserves one byte for szNames, thus we don't have to
  66  * alloc a byte for the terminating '\0' of 'name'. Two of the
  67  * additional bytes are for SHITEMID's cb field. One is for IDLDATA's
  68  * type field. One is for FileStruct's szNames field, to terminate
  69  * the alternate DOS name, which we don't use here. And then there's
  70  * the additional StatStruct.
  71  */
  72 #define SHITEMID_LEN_FROM_NAME_LEN(n) \
  73     (sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
  74 #define NAME_LEN_FROM_LPSHITEMID(s) \
  75     (((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
  76 #define LPSTATSTRUCT_FROM_LPSHITEMID(s) \
  77     (((s) && (((LPSHITEMID)s)->cb > SHITEMID_LEN_FROM_NAME_LEN(0))) ? \
  78      ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct))) : \
  79      (NULL))
  80
  81 #define PATHMODE_UNIX 0
  82 #define PATHMODE_DOS  1
  83
  84 /* ShellFolder attributes of the root folder ('/') */
  85 static DWORD dwRootAttr = 0;
  86
  87 /* This structure is appended to shell32's FileStruct type in IDLs to store unix
  88  * filesystem specific informationen extracted with the stat system call.
  89  */
  90 typedef struct tagStatStruct {
  91     mode_t st_mode;
  92     uid_t  st_uid;
  93     gid_t  st_gid;
  94     SFGAOF sfAttr;
  95 } StatStruct;
  96
  97 /* UnixFolder object layout and typedef.
  98  */
  99 typedef struct _UnixFolder {
 100     const IShellFolder2Vtbl  *lpIShellFolder2Vtbl;
 101     const IPersistFolder2Vtbl *lpIPersistFolder2Vtbl;
 102     const ISFHelperVtbl *lpISFHelperVtbl;
 103     LONG m_cRef;
 104     CHAR *m_pszPath;
 105     LPITEMIDLIST m_pidlLocation;
 106     LPITEMIDLIST *m_apidlSubDirs;
 107     LONG m_cSubDirs;
 108     DWORD m_dwPathMode;
 109 } UnixFolder;
 110
 111 /******************************************************************************
 112  * UNIXFS_is_rooted_at_desktop [Internal]
 113  *
 114  * Checks if the unixfs namespace extension is rooted at desktop level.
 115  *
 116  * RETURNS
 117  *  TRUE, if unixfs is rooted at desktop level
 118  *  FALSE, if not.
 119  */
 120 BOOL UNIXFS_is_rooted_at_desktop(void) {
 121     HKEY hKey;
 122     WCHAR *pwszCLSID_UnixDosFolder, wszRootedAtDesktop[69 + CHARS_IN_GUID] = {
 123         'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
 124         'W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 125         'E','x','p','l','o','r','e','r','\\','D','e','s','k','t','o','p','\\',
 126         'N','a','m','e','S','p','a','c','e','\\',0 };
 127
 128     if (FAILED(StringFromCLSID(&CLSID_UnixDosFolder, &pwszCLSID_UnixDosFolder)))
 129         return FALSE;
 130
 131     lstrcatW(wszRootedAtDesktop, pwszCLSID_UnixDosFolder);
 132     CoTaskMemFree(pwszCLSID_UnixDosFolder);
 133
 134     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, wszRootedAtDesktop, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
 135         return FALSE;
 136
 137     RegCloseKey(hKey);
 138     return TRUE;
 139 }
 140
 141 /******************************************************************************
 142  * UNIXFS_is_pidl_of_type [INTERNAL]
 143  *
 144  * Checks for the first SHITEMID of an ITEMIDLIST if it passes a filter.
 145  *
 146  * PARAMS
 147  *  pIDL    [I] The ITEMIDLIST to be checked.
 148  *  fFilter [I] Shell condition flags, which specify the filter.
 149  *
 150  * RETURNS
 151  *  TRUE, if pIDL is accepted by fFilter
 152  *  FALSE, otherwise
 153  */
 154 static inline BOOL UNIXFS_is_pidl_of_type(LPITEMIDLIST pIDL, SHCONTF fFilter) {
 155     LPPIDLDATA pIDLData = _ILGetDataPointer(pIDL);
 156     if (!(fFilter & SHCONTF_INCLUDEHIDDEN) && pIDLData &&
 157         (pIDLData->u.file.uFileAttribs & FILE_ATTRIBUTE_HIDDEN))
 158     {
 159         return FALSE;
 160     }
 161     if (_ILIsFolder(pIDL) && (fFilter & SHCONTF_FOLDERS)) return TRUE;
 162     if (_ILIsValue(pIDL) && (fFilter & SHCONTF_NONFOLDERS)) return TRUE;
 163     return FALSE;
 164 }
 165
 166 /******************************************************************************
 167  * UNIXFS_is_dos_device [Internal]
 168  *
 169  * Determines if a unix directory corresponds to any dos device.
 170  *
 171  * PARAMS
 172  *  statPath [I] The stat struct of the directory, as returned by stat(2).
 173  *
 174  * RETURNS
 175  *  TRUE, if statPath corresponds to any dos drive letter
 176  *  FALSE, otherwise
 177  */
 178 static BOOL UNIXFS_is_dos_device(const struct stat *statPath) {
 179     struct stat statDrive;
 180     char *pszDrivePath;
 181     DWORD dwDriveMap;
 182     WCHAR wszDosDevice[4] = { 'A', ':', '\\', 0 };
 183
 184     for (dwDriveMap = GetLogicalDrives(); dwDriveMap; dwDriveMap >>= 1, wszDosDevice[0]++) {
 185         if (!(dwDriveMap & 0x1)) continue;
 186         pszDrivePath = wine_get_unix_file_name(wszDosDevice);
 187         if (pszDrivePath && !stat(pszDrivePath, &statDrive)) {
 188             HeapFree(GetProcessHeap(), 0, pszDrivePath);
 189             if ((statPath->st_dev == statDrive.st_dev) && (statPath->st_ino == statDrive.st_ino))
 190                 return TRUE;
 191         }
 192     }
 193     return FALSE;
 194 }
 195
 196 /******************************************************************************
 197  * UNIXFS_get_unix_path [Internal]
 198  *
 199  * Convert an absolute dos path to an absolute canonicalized unix path.
 200  * Evaluate "/.", "/.." and symbolic links.
 201  *
 202  * PARAMS
 203  *  pszDosPath       [I] An absolute dos path
 204  *  pszCanonicalPath [O] Buffer of length FILENAME_MAX. Will receive the canonical path.
 205  *
 206  * RETURNS
 207  *  Success, TRUE
 208  *  Failure, FALSE - Path not existent, too long, insufficient rights, to many symlinks
 209  */
 210 static BOOL UNIXFS_get_unix_path(LPCWSTR pszDosPath, char *pszCanonicalPath)
 211 {
 212     char *pPathTail, *pElement, *pCanonicalTail, szPath[FILENAME_MAX], *pszUnixPath;
 213     struct stat fileStat;
 214
 215     TRACE("(pszDosPath=%s, pszCanonicalPath=%p)\n", debugstr_w(pszDosPath), pszCanonicalPath);
 216
 217     if (!pszDosPath || pszDosPath[1] != ':')
 218         return FALSE;
 219
 220     pszUnixPath = wine_get_unix_file_name(pszDosPath);
 221     if (!pszUnixPath) return FALSE;
 222     strcpy(szPath, pszUnixPath);
 223     HeapFree(GetProcessHeap(), 0, pszUnixPath);
 224
 225     /* pCanonicalTail always points to the end of the canonical path constructed
 226      * thus far. pPathTail points to the still to be processed part of the input
 227      * path. pElement points to the path element currently investigated.
 228      */
 229     *pszCanonicalPath = '\0';
 230     pCanonicalTail = pszCanonicalPath;
 231     pPathTail = szPath;
 232
 233     do {
 234         char cTemp;
 235         int cLinks = 0;
 236
 237         pElement = pPathTail;
 238         pPathTail = strchr(pPathTail+1, '/');
 239         if (!pPathTail) /* Last path element may not be terminated by '/'. */
 240             pPathTail = pElement + strlen(pElement);
 241         /* Temporarily terminate the current path element. Will be restored later. */
 242         cTemp = *pPathTail;
 243         *pPathTail = '\0';
 244
 245         /* Skip "/." path elements */
 246         if (!strcmp("/.", pElement)) {
 247             *pPathTail = cTemp;
 248             continue;
 249         }
 250
 251         /* Remove last element in canonical path for "/.." elements, then skip. */
 252         if (!strcmp("/..", pElement)) {
 253             char *pTemp = strrchr(pszCanonicalPath, '/');
 254             if (pTemp)
 255                 pCanonicalTail = pTemp;
 256             *pCanonicalTail = '\0';
 257             *pPathTail = cTemp;
 258             continue;
 259         }
 260
 261         /* lstat returns zero on success. */
 262         if (lstat(szPath, &fileStat))
 263             return FALSE;
 264
 265         if (S_ISLNK(fileStat.st_mode)) {
 266             char szSymlink[FILENAME_MAX];
 267             int cLinkLen, cTailLen;
 268
 269             /* Avoid infinite loop for recursive links. */
 270             if (++cLinks > 64)
 271                 return FALSE;
 272
 273             cLinkLen = readlink(szPath, szSymlink, FILENAME_MAX);
 274             if (cLinkLen < 0)
 275                 return FALSE;
 276
 277             *pPathTail = cTemp;
 278             cTailLen = strlen(pPathTail);
 279
 280             if (szSymlink[0] == '/') {
 281                 /* Absolute link. Copy to szPath, concat remaining path and start all over. */
 282                 if (cLinkLen + cTailLen + 1 > FILENAME_MAX)
 283                     return FALSE;
 284
 285                 /* Avoid double slashes. */
 286                 if (szSymlink[cLinkLen-1] == '/' && pPathTail[0] == '/') {
 287                     szSymlink[cLinkLen-1] = '\0';
 288                     cLinkLen--;
 289                 }
 290
 291                 memcpy(szSymlink + cLinkLen, pPathTail, cTailLen + 1);
 292                 memcpy(szPath, szSymlink, cLinkLen + cTailLen + 1);
 293                 *pszCanonicalPath = '\0';
 294                 pCanonicalTail = pszCanonicalPath;
 295                 pPathTail = szPath;
 296             } else {
 297                 /* Relative link. Expand into szPath and continue. */
 298                 char szTemp[FILENAME_MAX];
 299                 int cTailLen = strlen(pPathTail);
 300
 301                 if (pElement - szPath + 1 + cLinkLen + cTailLen + 1 > FILENAME_MAX)
 302                     return FALSE;
 303
 304                 memcpy(szTemp, pPathTail, cTailLen + 1);
 305                 memcpy(pElement + 1, szSymlink, cLinkLen);
 306                 memcpy(pElement + 1 + cLinkLen, szTemp, cTailLen + 1);
 307                 pPathTail = pElement;
 308             }
 309         } else {
 310             /* Regular directory or file. Copy to canonical path */
 311             if (pCanonicalTail - pszCanonicalPath + pPathTail - pElement + 1 > FILENAME_MAX)
 312                 return FALSE;
 313
 314             memcpy(pCanonicalTail, pElement, pPathTail - pElement + 1);
 315             pCanonicalTail += pPathTail - pElement;
 316             *pPathTail = cTemp;
 317         }
 318     } while (pPathTail[0] == '/');
 319
 320     TRACE("--> %s\n", debugstr_a(pszCanonicalPath));
 321
 322     return TRUE;
 323 }
 324
 325 /******************************************************************************
 326  * UNIXFS_build_shitemid [Internal]
 327  *
 328  * Constructs a new SHITEMID for the last component of path 'pszUnixPath' into
 329  * buffer 'pIDL'. Decorates the SHITEMID with information from a stat system call.
 330  *
 331  * PARAMS
 332  *  pszUnixPath [I] An absolute path. The SHITEMID will be build for the last component.
 333  *  bParentIsFS [I] Set, if the parent of the last path component is within the wine filesystem.
 334  *  pIDL        [O] SHITEMID will be constructed here.
 335  *
 336  * RETURNS
 337  *  Success: A pointer to the terminating '\0' character of path.
 338  *  Failure: NULL
 339  *
 340  * NOTES
 341  *  Minimum size of pIDL is SHITEMID_LEN_FROM_NAME_LEN(strlen(last_component_of_path)).
 342  *  If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
 343  *  a 0 USHORT value.
 344  */
 345 static char* UNIXFS_build_shitemid(char *pszUnixPath, BOOL bParentIsFS, void *pIDL) {
 346     LARGE_INTEGER time;
 347     FILETIME fileTime;
 348     LPPIDLDATA pIDLData;
 349     struct stat fileStat;
 350     StatStruct *pStatStruct;
 351     char *pszComponent;
 352     int cComponentLen;
 353
 354     TRACE("(pszUnixPath=%s, pIDL=%p)\n", debugstr_a(pszUnixPath), pIDL);
 355
 356     /* Compute the SHITEMID's length and wipe it. */
 357     pszComponent = strrchr(pszUnixPath, '/') + 1;
 358     cComponentLen = strlen(pszComponent);
 359     memset(pIDL, 0, SHITEMID_LEN_FROM_NAME_LEN(cComponentLen));
 360     ((LPSHITEMID)pIDL)->cb = SHITEMID_LEN_FROM_NAME_LEN(cComponentLen) ;
 361
 362     /* We are only interested in regular files and directories. */
 363     if (stat(pszUnixPath, &fileStat)) return NULL;
 364     if (!S_ISDIR(fileStat.st_mode) && !S_ISREG(fileStat.st_mode)) return NULL;
 365
 366     pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pIDL);
 367     pStatStruct->st_mode = fileStat.st_mode;
 368     pStatStruct->st_uid = fileStat.st_uid;
 369     pStatStruct->st_gid = fileStat.st_gid;
 370     if (S_ISDIR(fileStat.st_mode))
 371         pStatStruct->sfAttr = SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR|SFGAO_CANRENAME;
 372     else
 373         pStatStruct->sfAttr = SFGAO_CANRENAME;
 374     if (bParentIsFS || UNIXFS_is_dos_device(&fileStat)) pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
 375
 376     /* Set shell32's standard SHITEMID data fields. */
 377     pIDLData = _ILGetDataPointer((LPCITEMIDLIST)pIDL);
 378     pIDLData->type = S_ISDIR(fileStat.st_mode) ? PT_FOLDER : PT_VALUE;
 379     pIDLData->u.file.dwFileSize = (DWORD)fileStat.st_size;
 380     RtlSecondsSince1970ToTime( fileStat.st_mtime, &time );
 381     fileTime.dwLowDateTime = time.u.LowPart;
 382     fileTime.dwHighDateTime = time.u.HighPart;
 383     FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
 384     pIDLData->u.file.uFileAttribs = 0;
 385     if (S_ISDIR(fileStat.st_mode)) pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
 386     if (pszComponent[0] == '.') pIDLData->u.file.uFileAttribs |=  FILE_ATTRIBUTE_HIDDEN;
 387     memcpy(pIDLData->u.file.szNames, pszComponent, cComponentLen);
 388
 389     return pszComponent + cComponentLen;
 390 }
 391
 392 /******************************************************************************
 393  * UNIXFS_path_to_pidl [Internal]
 394  *
 395  * PARAMS
 396  *  pUnixFolder [I] If path is relative, pUnixFolder represents the base path
 397  *  path        [I] An absolute unix or dos path or a path relativ to pUnixFolder
 398  *  ppidl       [O] The corresponding ITEMIDLIST. Release with SHFree/ILFree
 399  *
 400  * RETURNS
 401  *  Success: TRUE
 402  *  Failure: FALSE, invalid params or out of memory
 403  *
 404  * NOTES
 405  *  pUnixFolder also carries the information if the path is expected to be unix or dos.
 406  */
 407 static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPITEMIDLIST *ppidl) {
 408     LPITEMIDLIST pidl;
 409     int cSubDirs, cPidlLen, cPathLen;
 410     char *pSlash, szCompletePath[FILENAME_MAX], *pNextPathElement;
 411     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 412
 413     TRACE("pUnixFolder=%p, path=%s, ppidl=%p\n", pUnixFolder, debugstr_w(path), ppidl);
 414
 415     if (!ppidl || !path)
 416         return FALSE;
 417
 418     /* Build an absolute path and let pNextPathElement point to the interesting
 419      * relative sub-path. We need the absolute path to call 'stat', but the pidl
 420      * will only contain the relative part.
 421      */
 422     if ((pUnixFolder->m_dwPathMode == PATHMODE_DOS) && (path[1] == ':'))
 423     {
 424         /* Absolute dos path. Convert to unix */
 425         if (!UNIXFS_get_unix_path(path, szCompletePath))
 426             return FALSE;
 427         pNextPathElement = szCompletePath;
 428     }
 429     else if ((pUnixFolder->m_dwPathMode == PATHMODE_UNIX) && (path[0] == '/'))
 430     {
 431         /* Absolute unix path. Just convert to ANSI. */
 432         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath, FILENAME_MAX, NULL, NULL);
 433         pNextPathElement = szCompletePath;
 434     }
 435     else
 436     {
 437         /* Relative dos or unix path. Concat with this folder's path */
 438         int cBasePathLen = strlen(pUnixFolder->m_pszPath);
 439         memcpy(szCompletePath, pUnixFolder->m_pszPath, cBasePathLen);
 440         WideCharToMultiByte(CP_ACP, 0, path, -1, szCompletePath + cBasePathLen,
 441                             FILENAME_MAX - cBasePathLen, NULL, NULL);
 442         pNextPathElement = szCompletePath + cBasePathLen - 1;
 443
 444         /* If in dos mode, replace '\' with '/' */
 445         if (pUnixFolder->m_dwPathMode == PATHMODE_DOS) {
 446             char *pBackslash = strchr(pNextPathElement, '\\');
 447             while (pBackslash) {
 448                 *pBackslash = '/';
 449                 pBackslash = strchr(pBackslash, '\\');
 450             }
 451         }
 452     }
 453
 454     /* Special case for the root folder. */
 455     if (!strcmp(szCompletePath, "/")) {
 456         *ppidl = pidl = (LPITEMIDLIST)SHAlloc(sizeof(USHORT));
 457         if (!pidl) return FALSE;
 458         pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 459         return TRUE;
 460     }
 461
 462     /* Remove trailing slash, if present */
 463     cPathLen = strlen(szCompletePath);
 464     if (szCompletePath[cPathLen-1] == '/')
 465         szCompletePath[cPathLen-1] = '\0';
 466
 467     if ((szCompletePath[0] != '/') || (pNextPathElement[0] != '/')) {
 468         ERR("szCompletePath: %s, pNextPathElment: %s\n", szCompletePath, pNextPathElement);
 469         return FALSE;
 470     }
 471
 472     /* At this point, we have an absolute unix path in szCompletePath
 473      * and the relative portion of it in pNextPathElement. Both starting with '/'
 474      * and _not_ terminated by a '/'. */
 475     TRACE("complete path: %s, relative path: %s\n", szCompletePath, pNextPathElement);
 476
 477     /* Count the number of sub-directories in the path */
 478     cSubDirs = 0;
 479     pSlash = pNextPathElement;
 480     while (pSlash) {
 481         cSubDirs++;
 482         pSlash = strchr(pSlash+1, '/');
 483     }
 484
 485     /* Allocate enough memory to hold the path. The -cSubDirs is for the '/'
 486      * characters, which are not stored in the ITEMIDLIST. */
 487     cPidlLen = strlen(pNextPathElement) - cSubDirs + cSubDirs * SHITEMID_LEN_FROM_NAME_LEN(0) + sizeof(USHORT);
 488     *ppidl = pidl = (LPITEMIDLIST)SHAlloc(cPidlLen);
 489     if (!pidl) return FALSE;
 490
 491     /* Concatenate the SHITEMIDs of the sub-directories. */
 492     while (*pNextPathElement) {
 493         pSlash = strchr(pNextPathElement+1, '/');
 494         if (pSlash) *pSlash = '\0';
 495         pNextPathElement = UNIXFS_build_shitemid(szCompletePath, bParentIsFS, pidl);
 496         if (pSlash) *pSlash = '/';
 497
 498         if (!pNextPathElement) {
 499             SHFree(pidl);
 500             return FALSE;
 501         }
 502         if (!bParentIsFS && (LPSTATSTRUCT_FROM_LPSHITEMID(pidl)->sfAttr & SFGAO_FILESYSTEM))
 503             bParentIsFS = TRUE;
 504         pidl = ILGetNext(pidl);
 505     }
 506     pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
 507
 508     if ((int)pidl-(int)*ppidl+sizeof(USHORT) != cPidlLen) /* We've corrupted the heap :( */
 509         ERR("Computed length of pidl incorrect. Please report.\n");
 510
 511     return TRUE;
 512 }
 513
 514 /******************************************************************************
 515  * UNIXFS_pidl_to_path [Internal]
 516  *
 517  * Construct the unix path that corresponds to a fully qualified ITEMIDLIST
 518  *
 519  * PARAMS
 520  *  pidl [I] ITEMIDLIST that specifies the absolute location of the folder
 521  *  path [O] The corresponding unix path as a zero terminated ascii string
 522  *
 523  * RETURNS
 524  *  Success: TRUE
 525  *  Failure: FALSE, pidl doesn't specify a unix path or out of memory
 526  */
 527 static BOOL UNIXFS_pidl_to_path(LPCITEMIDLIST pidl, UnixFolder *pUnixFolder) {
 528     LPCITEMIDLIST current = pidl, root;
 529     DWORD dwPathLen;
 530     char *pNextDir, szBasePath[FILENAME_MAX] = "/";
 531
 532     TRACE("(pidl=%p, pUnixFolder=%p)\n", pidl, pUnixFolder);
 533     pdump(pidl);
 534
 535     pUnixFolder->m_pszPath = NULL;
 536
 537     /* Find the UnixFolderClass root */
 538     while (current->mkid.cb) {
 539         if (_ILIsDrive(current) || /* The dos drive, which maps to '/' */
 540             (_ILIsSpecialFolder(current) &&
 541              (IsEqualIID(&CLSID_UnixFolder, _ILGetGUIDPointer(current)) ||
 542               IsEqualIID(&CLSID_UnixDosFolder, _ILGetGUIDPointer(current)))))
 543         {
 544             break;
 545         }
 546         current = ILGetNext(current);
 547     }
 548
 549     if (current && current->mkid.cb) {
 550         root = current = ILGetNext(current);
 551         dwPathLen = 2; /* For the '/' prefix and the terminating '\0' */
 552     } else if (_ILIsDesktop(pidl) || _ILIsValue(pidl) || _ILIsFolder(pidl)) {
 553         /* Path rooted at Desktop */
 554         WCHAR wszDesktopPath[MAX_PATH];
 555         if (FAILED(SHGetSpecialFolderPathW(0, wszDesktopPath, CSIDL_DESKTOP, FALSE)))
 556            return FALSE;
 557         if (!UNIXFS_get_unix_path(wszDesktopPath, szBasePath))
 558             return FALSE;
 559         dwPathLen = strlen(szBasePath) + 1;
 560         root = current;
 561     } else {
 562         ERR("Unknown pidl type!\n");
 563         pdump(pidl);
 564         return FALSE;
 565     }
 566
 567     /* Determine the path's length bytes */
 568     while (current && current->mkid.cb) {
 569         dwPathLen += NAME_LEN_FROM_LPSHITEMID(current) + 1; /* For the '/' */
 570         current = ILGetNext(current);
 571     };
 572
 573     /* Build the path */
 574     pUnixFolder->m_pszPath = pNextDir = SHAlloc(dwPathLen);
 575     if (!pUnixFolder->m_pszPath) {
 576         WARN("SHAlloc failed!\n");
 577         return FALSE;
 578     }
 579     current = root;
 580     strcpy(pNextDir, szBasePath);
 581     pNextDir += strlen(szBasePath);
 582     while (current && current->mkid.cb) {
 583         memcpy(pNextDir, _ILGetTextPointer(current), NAME_LEN_FROM_LPSHITEMID(current));
 584         pNextDir += NAME_LEN_FROM_LPSHITEMID(current);
 585         *pNextDir++ = '/';
 586         current = ILGetNext(current);
 587     }
 588     *pNextDir='\0';
 589
 590     TRACE("--> %s\n", pUnixFolder->m_pszPath);
 591     return TRUE;
 592 }
 593
 594 /******************************************************************************
 595  * UNIXFS_build_subfolder_pidls [Internal]
 596  *
 597  * Builds an array of subfolder PIDLs relative to a unix directory
 598  *
 599  * PARAMS
 600  *  path   [I] Name of a unix directory as a zero terminated ascii string
 601  *  apidl  [O] The array of PIDLs
 602  *  pCount [O] Size of apidl
 603  *
 604  * RETURNS
 605  *  Success: TRUE
 606  *  Failure: FALSE, path is not a valid unix directory or out of memory
 607  *
 608  * NOTES
 609  *  The array of PIDLs and each PIDL are allocated with SHAlloc. You'll have
 610  *  to release each PIDL as well as the array itself with SHFree.
 611  */
 612 static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
 613 {
 614     struct dirent *pDirEntry;
 615     struct stat fileStat;
 616     DIR *dir;
 617     DWORD cDirEntries, i;
 618     USHORT sLen;
 619     char *pszFQPath;
 620     BOOL bParentIsFS = dwRootAttr & SFGAO_FILESYSTEM;
 621
 622     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 623
 624     /* For updates: If there already is an initialized list, release it */
 625     if (pUnixFolder->m_cSubDirs > 0) {
 626         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 627             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 628         SHFree(pUnixFolder->m_apidlSubDirs);
 629     }
 630
 631     pUnixFolder->m_apidlSubDirs = NULL;
 632     pUnixFolder->m_cSubDirs = 0;
 633
 634     if (pUnixFolder->m_pidlLocation) {
 635         StatStruct *statStruct =
 636             LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(pUnixFolder->m_pidlLocation));
 637         if (statStruct) bParentIsFS = statStruct->sfAttr & SFGAO_FILESYSTEM;
 638     }
 639
 640     dir = opendir(pUnixFolder->m_pszPath);
 641     if (!dir) {
 642         WARN("Failed to open directory '%s'.\n", pUnixFolder->m_pszPath);
 643         return FALSE;
 644     }
 645
 646     /* Allocate space for fully qualified paths */
 647     pszFQPath = SHAlloc(strlen(pUnixFolder->m_pszPath) + PATH_MAX);
 648     if (!pszFQPath) {
 649         WARN("SHAlloc failed!\n");
 650         return FALSE;
 651     }
 652
 653     /* Count number of directory entries. */
 654     for (cDirEntries = 0, pDirEntry = readdir(dir); pDirEntry; pDirEntry = readdir(dir)) {
 655         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 656         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 657         if (!stat(pszFQPath, &fileStat) && (S_ISDIR(fileStat.st_mode) || S_ISREG(fileStat.st_mode))) cDirEntries++;
 658     }
 659
 660     /* If there are no entries, we are done. */
 661     if (cDirEntries == 0) {
 662         closedir(dir);
 663         SHFree(pszFQPath);
 664         return TRUE;
 665     }
 666
 667     /* Allocate the array of PIDLs */
 668     pUnixFolder->m_apidlSubDirs = SHAlloc(cDirEntries * sizeof(LPITEMIDLIST));
 669     if (!pUnixFolder->m_apidlSubDirs) {
 670         WARN("SHAlloc failed!\n");
 671         return FALSE;
 672     }
 673
 674     /* Allocate and initialize one SHITEMID per sub-directory. */
 675     for (rewinddir(dir), pDirEntry = readdir(dir), i = 0; pDirEntry; pDirEntry = readdir(dir)) {
 676         LPSHITEMID pid;
 677
 678         if (!strcmp(pDirEntry->d_name, ".") || !strcmp(pDirEntry->d_name, "..")) continue;
 679
 680         sprintf(pszFQPath, "%s%s", pUnixFolder->m_pszPath, pDirEntry->d_name);
 681
 682         sLen = strlen(pDirEntry->d_name);
 683         pid = (LPSHITEMID)SHAlloc(SHITEMID_LEN_FROM_NAME_LEN(sLen)+sizeof(USHORT));
 684         if (!pid) {
 685             WARN("SHAlloc failed!\n");
 686             return FALSE;
 687         }
 688         if (!UNIXFS_build_shitemid(pszFQPath, bParentIsFS, pid)) {
 689             SHFree(pid);
 690             continue;
 691         }
 692         memset(((PBYTE)pid)+pid->cb, 0, sizeof(USHORT));
 693
 694         pUnixFolder->m_apidlSubDirs[i++] = (LPITEMIDLIST)pid;
 695     }
 696
 697     pUnixFolder->m_cSubDirs = i;
 698     closedir(dir);
 699     SHFree(pszFQPath);
 700
 701     return TRUE;
 702 }
 703
 704 /******************************************************************************
 705  * UnixFolder
 706  *
 707  * Class whose heap based instances represent unix filesystem directories.
 708  */
 709
 710 static void UnixFolder_Destroy(UnixFolder *pUnixFolder) {
 711     DWORD i;
 712
 713     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
 714
 715     if (pUnixFolder->m_apidlSubDirs)
 716         for (i=0; i < pUnixFolder->m_cSubDirs; i++)
 717             SHFree(pUnixFolder->m_apidlSubDirs[i]);
 718     SHFree(pUnixFolder->m_apidlSubDirs);
 719     SHFree(pUnixFolder->m_pszPath);
 720     ILFree(pUnixFolder->m_pidlLocation);
 721     SHFree(pUnixFolder);
 722 }
 723
 724 static HRESULT WINAPI UnixFolder_IShellFolder2_QueryInterface(IShellFolder2 *iface, REFIID riid,
 725     void **ppv)
 726 {
 727     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 728
 729     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
 730
 731     if (!ppv) return E_INVALIDARG;
 732
 733     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IShellFolder, riid) ||
 734         IsEqualIID(&IID_IShellFolder2, riid))
 735     {
 736         *ppv = &This->lpIShellFolder2Vtbl;
 737     } else if (IsEqualIID(&IID_IPersistFolder2, riid) || IsEqualIID(&IID_IPersistFolder, riid) ||
 738                IsEqualIID(&IID_IPersist, riid))
 739     {
 740         *ppv = &This->lpIPersistFolder2Vtbl;
 741     } else if (IsEqualIID(&IID_ISFHelper, riid)) {
 742         *ppv = &This->lpISFHelperVtbl;
 743     } else {
 744         *ppv = NULL;
 745         return E_NOINTERFACE;
 746     }
 747
 748     IUnknown_AddRef((IUnknown*)*ppv);
 749     return S_OK;
 750 }
 751
 752 static ULONG WINAPI UnixFolder_IShellFolder2_AddRef(IShellFolder2 *iface) {
 753     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 754
 755     TRACE("(iface=%p)\n", iface);
 756
 757     return InterlockedIncrement(&This->m_cRef);
 758 }
 759
 760 static ULONG WINAPI UnixFolder_IShellFolder2_Release(IShellFolder2 *iface) {
 761     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 762     ULONG cRef;
 763
 764     TRACE("(iface=%p)\n", iface);
 765
 766     cRef = InterlockedDecrement(&This->m_cRef);
 767
 768     if (!cRef)
 769         UnixFolder_Destroy(This);
 770
 771     return cRef;
 772 }
 773
 774 static HRESULT WINAPI UnixFolder_IShellFolder2_ParseDisplayName(IShellFolder2* iface, HWND hwndOwner,
 775     LPBC pbcReserved, LPOLESTR lpszDisplayName, ULONG* pchEaten, LPITEMIDLIST* ppidl,
 776     ULONG* pdwAttributes)
 777 {
 778     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 779     BOOL result;
 780
 781     TRACE("(iface=%p, hwndOwner=%p, pbcReserved=%p, lpszDisplayName=%s, pchEaten=%p, ppidl=%p, "
 782           "pdwAttributes=%p) stub\n", iface, hwndOwner, pbcReserved, debugstr_w(lpszDisplayName),
 783           pchEaten, ppidl, pdwAttributes);
 784
 785     result = UNIXFS_path_to_pidl(This, lpszDisplayName, ppidl);
 786     if (result && pdwAttributes && *pdwAttributes)
 787     {
 788         IShellFolder *pParentSF;
 789         LPCITEMIDLIST pidlLast;
 790         HRESULT hr;
 791
 792         hr = SHBindToParent(This->m_pidlLocation, &IID_IShellFolder, (LPVOID*)&pParentSF, &pidlLast);
 793         if (FAILED(hr)) return E_FAIL;
 794         IShellFolder_GetAttributesOf(pParentSF, 1, &pidlLast, pdwAttributes);
 795         IShellFolder_Release(pParentSF);
 796     }
 797
 798     if (!result) TRACE("FAILED!\n");
 799     return result ? S_OK : E_FAIL;
 800 }
 801
 802 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter);
 803
 804 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface, HWND hwndOwner,
 805     SHCONTF grfFlags, IEnumIDList** ppEnumIDList)
 806 {
 807     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 808     IUnknown *newIterator;
 809     HRESULT hr;
 810
 811     TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
 812             iface, hwndOwner, grfFlags, ppEnumIDList);
 813
 814     if (This->m_cSubDirs == -1)
 815         UNIXFS_build_subfolder_pidls(This);
 816
 817     newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
 818     hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
 819     IUnknown_Release(newIterator);
 820
 821     return hr;
 822 }
 823
 824 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToObject(IShellFolder2* iface, LPCITEMIDLIST pidl,
 825     LPBC pbcReserved, REFIID riid, void** ppvOut)
 826 {
 827     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 828     IPersistFolder2 *persistFolder;
 829     LPITEMIDLIST pidlSubFolder;
 830     HRESULT hr;
 831
 832     TRACE("(iface=%p, pidl=%p, pbcReserver=%p, riid=%p, ppvOut=%p)\n",
 833             iface, pidl, pbcReserved, riid, ppvOut);
 834
 835     if (!pidl || !pidl->mkid.cb)
 836         return E_INVALIDARG;
 837
 838     if (This->m_dwPathMode == PATHMODE_DOS)
 839         hr = UnixDosFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 840     else
 841         hr = UnixFolder_Constructor(NULL, &IID_IPersistFolder2, (void**)&persistFolder);
 842
 843     if (!SUCCEEDED(hr)) return hr;
 844     hr = IPersistFolder_QueryInterface(persistFolder, riid, (void**)ppvOut);
 845
 846     pidlSubFolder = ILCombine(This->m_pidlLocation, pidl);
 847     IPersistFolder2_Initialize(persistFolder, pidlSubFolder);
 848     IPersistFolder2_Release(persistFolder);
 849     ILFree(pidlSubFolder);
 850
 851     return hr;
 852 }
 853
 854 static HRESULT WINAPI UnixFolder_IShellFolder2_BindToStorage(IShellFolder2* This, LPCITEMIDLIST pidl,
 855     LPBC pbcReserved, REFIID riid, void** ppvObj)
 856 {
 857     TRACE("stub\n");
 858     return E_NOTIMPL;
 859 }
 860
 861 static HRESULT WINAPI UnixFolder_IShellFolder2_CompareIDs(IShellFolder2* iface, LPARAM lParam,
 862     LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 863 {
 864     BOOL isEmpty1, isEmpty2;
 865     HRESULT hr = E_FAIL;
 866     LPITEMIDLIST firstpidl;
 867     IShellFolder2 *psf;
 868     int compare;
 869
 870     TRACE("(iface=%p, lParam=%ld, pidl1=%p, pidl2=%p)\n", iface, lParam, pidl1, pidl2);
 871
 872     isEmpty1 = !pidl1 || !pidl1->mkid.cb;
 873     isEmpty2 = !pidl2 || !pidl2->mkid.cb;
 874
 875     if (isEmpty1 && isEmpty2)
 876         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, 0);
 877     else if (isEmpty1)
 878         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 879     else if (isEmpty2)
 880         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 881
 882     if (_ILIsFolder(pidl1) && !_ILIsFolder(pidl2))
 883         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 884     if (!_ILIsFolder(pidl1) && _ILIsFolder(pidl2))
 885         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 886
 887     compare = CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
 888                              _ILGetTextPointer(pidl1), NAME_LEN_FROM_LPSHITEMID(pidl1),
 889                              _ILGetTextPointer(pidl2), NAME_LEN_FROM_LPSHITEMID(pidl2));
 890
 891     if ((compare == CSTR_LESS_THAN) || (compare == CSTR_GREATER_THAN))
 892         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)((compare == CSTR_LESS_THAN)?-1:1));
 893
 894     if (pidl1->mkid.cb < pidl2->mkid.cb)
 895         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)-1);
 896     else if (pidl1->mkid.cb > pidl2->mkid.cb)
 897         return MAKE_HRESULT(SEVERITY_SUCCESS, 0, (WORD)1);
 898
 899     firstpidl = ILCloneFirst(pidl1);
 900     pidl1 = ILGetNext(pidl1);
 901     pidl2 = ILGetNext(pidl2);
 902
 903     hr = IShellFolder2_BindToObject(iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID*)&psf);
 904     if (SUCCEEDED(hr)) {
 905         hr = IShellFolder_CompareIDs(psf, lParam, pidl1, pidl2);
 906         IShellFolder2_Release(psf);
 907     }
 908
 909     ILFree(firstpidl);
 910     return hr;
 911 }
 912
 913 static HRESULT WINAPI UnixFolder_IShellFolder2_CreateViewObject(IShellFolder2* iface, HWND hwndOwner,
 914     REFIID riid, void** ppv)
 915 {
 916     HRESULT hr = E_INVALIDARG;
 917
 918     TRACE("(iface=%p, hwndOwner=%p, riid=%p, ppv=%p) stub\n", iface, hwndOwner, riid, ppv);
 919
 920     if (!ppv) return E_INVALIDARG;
 921     *ppv = NULL;
 922
 923     if (IsEqualIID(&IID_IShellView, riid)) {
 924         LPSHELLVIEW pShellView;
 925
 926         pShellView = IShellView_Constructor((IShellFolder*)iface);
 927         if (pShellView) {
 928             hr = IShellView_QueryInterface(pShellView, riid, ppv);
 929             IShellView_Release(pShellView);
 930         }
 931     }
 932
 933     return hr;
 934 }
 935
 936 static HRESULT WINAPI UnixFolder_IShellFolder2_GetAttributesOf(IShellFolder2* iface, UINT cidl,
 937     LPCITEMIDLIST* apidl, SFGAOF* rgfInOut)
 938 {
 939     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 940     const StatStruct *pStatStruct;
 941
 942     TRACE("(iface=%p, cidl=%u, apidl=%p, rgfInOut=%p)\n", iface, cidl, apidl, rgfInOut);
 943
 944     if (!rgfInOut || (cidl && !apidl))
 945         return E_INVALIDARG;
 946
 947     if (cidl == 0) {
 948         if (!strcmp(This->m_pszPath, "/")) {
 949             *rgfInOut &= dwRootAttr;
 950         } else {
 951             pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(This->m_pidlLocation));
 952             if (!pStatStruct) return E_FAIL;
 953             *rgfInOut &= pStatStruct->sfAttr;
 954         }
 955     } else {
 956         UINT i;
 957         for (i=0; i<cidl; i++) {
 958             pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(apidl[i]);
 959             if (!pStatStruct) return E_INVALIDARG;
 960             *rgfInOut &= pStatStruct->sfAttr;
 961         }
 962     }
 963
 964     return S_OK;
 965 }
 966
 967 static HRESULT WINAPI UnixFolder_IShellFolder2_GetUIObjectOf(IShellFolder2* iface, HWND hwndOwner,
 968     UINT cidl, LPCITEMIDLIST* apidl, REFIID riid, UINT* prgfInOut, void** ppvOut)
 969 {
 970     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
 971
 972     TRACE("(iface=%p, hwndOwner=%p, cidl=%d, apidl=%p, riid=%s, prgfInOut=%p, ppv=%p)\n",
 973         iface, hwndOwner, cidl, apidl, debugstr_guid(riid), prgfInOut, ppvOut);
 974
 975     if (IsEqualIID(&IID_IContextMenu, riid)) {
 976         *ppvOut = ISvItemCm_Constructor((IShellFolder*)iface, This->m_pidlLocation, apidl, cidl);
 977         return S_OK;
 978     } else if (IsEqualIID(&IID_IDataObject, riid)) {
 979         *ppvOut = IDataObject_Constructor(hwndOwner, This->m_pidlLocation, apidl, cidl);
 980         return S_OK;
 981     } else if (IsEqualIID(&IID_IExtractIconA, riid)) {
 982         LPITEMIDLIST pidl;
 983         if (cidl != 1) return E_FAIL;
 984         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 985         *ppvOut = (LPVOID)IExtractIconA_Constructor(pidl);
 986         SHFree(pidl);
 987         return S_OK;
 988     } else if (IsEqualIID(&IID_IExtractIconW, riid)) {
 989         LPITEMIDLIST pidl;
 990         if (cidl != 1) return E_FAIL;
 991         pidl = ILCombine(This->m_pidlLocation, apidl[0]);
 992         *ppvOut = (LPVOID)IExtractIconW_Constructor(pidl);
 993         SHFree(pidl);
 994         return S_OK;
 995     } else if (IsEqualIID(&IID_IDropTarget, riid)) {
 996         FIXME("IDropTarget\n");
 997         return E_FAIL;
 998     } else if (IsEqualIID(&IID_IShellLinkW, riid)) {
 999         FIXME("IShellLinkW\n");
1000         return E_FAIL;
1001     } else if (IsEqualIID(&IID_IShellLinkA, riid)) {
1002         FIXME("IShellLinkA\n");
1003         return E_FAIL;
1004     } else {
1005         FIXME("Unknown interface %s in GetUIObjectOf\n", debugstr_guid(riid));
1006         return E_NOINTERFACE;
1007     }
1008 }
1009
1010 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDisplayNameOf(IShellFolder2* iface,
1011     LPCITEMIDLIST pidl, SHGDNF uFlags, STRRET* lpName)
1012 {
1013     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
1014     HRESULT hr = S_OK;
1015
1016     TRACE("(iface=%p, pidl=%p, uFlags=%lx, lpName=%p)\n", iface, pidl, uFlags, lpName);
1017
1018     if ((GET_SHGDN_FOR(uFlags) & SHGDN_FORPARSING) &&
1019         (GET_SHGDN_RELATION(uFlags) != SHGDN_INFOLDER))
1020     {
1021         if (!pidl->mkid.cb) {
1022             lpName->uType = STRRET_CSTR;
1023             strcpy(lpName->u.cStr, This->m_pszPath);
1024             if (This->m_dwPathMode == PATHMODE_DOS) {
1025                 char path[MAX_PATH];
1026                 GetFullPathNameA(lpName->u.cStr, MAX_PATH, path, NULL);
1027                 PathRemoveBackslashA(path);
1028                 strcpy(lpName->u.cStr, path);
1029             }
1030         } else {
1031             IShellFolder *pSubFolder;
1032             USHORT emptyIDL = 0;
1033
1034             hr = IShellFolder_BindToObject(iface, pidl, NULL, &IID_IShellFolder, (void**)&pSubFolder);
1035             if (!SUCCEEDED(hr)) return hr;
1036
1037             hr = IShellFolder_GetDisplayNameOf(pSubFolder, (LPITEMIDLIST)&emptyIDL, uFlags, lpName);
1038             IShellFolder_Release(pSubFolder);
1039         }
1040     } else {
1041         char *pszFileName = _ILGetTextPointer(pidl);
1042         lpName->uType = STRRET_CSTR;
1043         strcpy(lpName->u.cStr, pszFileName ? pszFileName : "");
1044     }
1045
1046     TRACE("--> %s\n", lpName->u.cStr);
1047
1048     return hr;
1049 }
1050
1051 static HRESULT WINAPI UnixFolder_IShellFolder2_SetNameOf(IShellFolder2* iface, HWND hwnd,
1052     LPCITEMIDLIST pidl, LPCOLESTR lpszName, SHGDNF uFlags, LPITEMIDLIST* ppidlOut)
1053 {
1054     UnixFolder *This = ADJUST_THIS(UnixFolder, IShellFolder2, iface);
1055
1056     char szSrc[FILENAME_MAX], szDest[FILENAME_MAX];
1057     int cBasePathLen = lstrlenA(This->m_pszPath);
1058     struct stat statDest;
1059     LPITEMIDLIST pidlNew;
1060
1061     TRACE("(iface=%p, hwnd=%p, pidl=%p, lpszName=%s, uFlags=0x%08lx, ppidlOut=%p)\n",
1062           iface, hwnd, pidl, debugstr_w(lpszName), uFlags, ppidlOut);
1063
1064     /* pidl has to contain a single non-empty SHITEMID */
1065     if (_ILIsDesktop(pidl) || !_ILIsPidlSimple(pidl) || !_ILGetTextPointer(pidl))
1066         return E_INVALIDARG;
1067
1068     if (ppidlOut)
1069         *ppidlOut = NULL;
1070
1071     /* build source path */
1072     memcpy(szSrc, This->m_pszPath, cBasePathLen);
1073     lstrcpyA(szSrc+cBasePathLen, _ILGetTextPointer(pidl));
1074
1075     /* build destination path */
1076     if (uFlags & SHGDN_FORPARSING) { /* absolute path in lpszName */
1077         WideCharToMultiByte(CP_ACP, 0, lpszName, -1, szDest, FILENAME_MAX, NULL, NULL);
1078     } else {
1079         memcpy(szDest, This->m_pszPath, cBasePathLen);
1080         WideCharToMultiByte(CP_ACP, 0, lpszName, -1, szDest+cBasePathLen,
1081                             FILENAME_MAX-cBasePathLen, NULL, NULL);
1082     }
1083
1084     TRACE("src=%s dest=%s\n", szSrc, szDest);
1085
1086     /* Fail, if destination does already exist */
1087     if (!stat(szDest, &statDest))
1088         return E_FAIL;
1089
1090     /* Rename the file and inform the shell */
1091     if (!rename(szSrc, szDest) && UNIXFS_path_to_pidl(This, lpszName, &pidlNew)) {
1092         LPITEMIDLIST pidlSrc = ILCombine(This->m_pidlLocation, pidl);
1093         LPITEMIDLIST pidlDest = ILCombine(This->m_pidlLocation, pidlNew);
1094         UNIXFS_build_subfolder_pidls(This); /* Update list of children */
1095         if (_ILIsFolder(pidlNew))
1096             SHChangeNotify(SHCNE_RENAMEFOLDER, SHCNF_IDLIST, pidlSrc, pidlDest);
1097         else
1098             SHChangeNotify(SHCNE_RENAMEITEM, SHCNF_IDLIST, pidlSrc, pidlDest);
1099         ILFree(pidlSrc);
1100         ILFree(pidlDest);
1101         if (ppidlOut)
1102             *ppidlOut = pidlNew;
1103         else
1104             ILFree(pidlNew);
1105         return S_OK;
1106     }
1107     return E_FAIL;
1108 }
1109
1110 static HRESULT WINAPI UnixFolder_IShellFolder2_EnumSearches(IShellFolder2* iface,
1111     IEnumExtraSearch **ppEnum)
1112 {
1113     TRACE("stub\n");
1114     return E_NOTIMPL;
1115 }
1116
1117 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumn(IShellFolder2* iface,
1118     DWORD dwReserved, ULONG *pSort, ULONG *pDisplay)
1119 {
1120     TRACE("stub\n");
1121     return E_NOTIMPL;
1122 }
1123
1124 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultColumnState(IShellFolder2* iface,
1125     UINT iColumn, SHCOLSTATEF *pcsFlags)
1126 {
1127     TRACE("stub\n");
1128     return E_NOTIMPL;
1129 }
1130
1131 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDefaultSearchGUID(IShellFolder2* iface,
1132     GUID *pguid)
1133 {
1134     TRACE("stub\n");
1135     return E_NOTIMPL;
1136 }
1137
1138 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsEx(IShellFolder2* iface,
1139     LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
1140 {
1141     TRACE("stub\n");
1142     return E_NOTIMPL;
1143 }
1144
1145 #define SHELLVIEWCOLUMNS 6
1146
1147 static HRESULT WINAPI UnixFolder_IShellFolder2_GetDetailsOf(IShellFolder2* iface,
1148     LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *psd)
1149 {
1150     HRESULT hr = E_FAIL;
1151     struct passwd *pPasswd;
1152     struct group *pGroup;
1153     static const shvheader SFHeader[SHELLVIEWCOLUMNS] = {
1154         {IDS_SHV_COLUMN1,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
1155         {IDS_SHV_COLUMN5,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
1156         {IDS_SHV_COLUMN10, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1157         {IDS_SHV_COLUMN11, SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 7},
1158         {IDS_SHV_COLUMN2,  SHCOLSTATE_TYPE_STR  | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 8},
1159         {IDS_SHV_COLUMN4,  SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10}
1160     };
1161
1162     TRACE("(iface=%p, pidl=%p, iColumn=%d, psd=%p) stub\n", iface, pidl, iColumn, psd);
1163
1164     if (!psd || iColumn >= SHELLVIEWCOLUMNS)
1165         return E_INVALIDARG;
1166
1167     if (!pidl) {
1168         psd->fmt = SFHeader[iColumn].fmt;
1169         psd->cxChar = SFHeader[iColumn].cxChar;
1170         psd->str.uType = STRRET_CSTR;
1171         LoadStringA(shell32_hInstance, SFHeader[iColumn].colnameid, psd->str.u.cStr, MAX_PATH);
1172         return S_OK;
1173     } else {
1174         StatStruct *pStatStruct = LPSTATSTRUCT_FROM_LPSHITEMID(pidl);
1175         psd->str.u.cStr[0] = '\0';
1176         psd->str.uType = STRRET_CSTR;
1177         switch (iColumn) {
1178             case 0:
1179                 hr = IShellFolder2_GetDisplayNameOf(iface, pidl, SHGDN_NORMAL|SHGDN_INFOLDER, &psd->str);
1180                 break;
1181             case 1:
1182                 psd->str.u.cStr[0] = S_ISDIR(pStatStruct->st_mode) ? 'd' : '-';
1183                 psd->str.u.cStr[1] = (pStatStruct->st_mode & S_IRUSR) ? 'r' : '-';
1184                 psd->str.u.cStr[2] = (pStatStruct->st_mode & S_IWUSR) ? 'w' : '-';
1185                 psd->str.u.cStr[3] = (pStatStruct->st_mode & S_IXUSR) ? 'x' : '-';
1186                 psd->str.u.cStr[4] = (pStatStruct->st_mode & S_IRGRP) ? 'r' : '-';
1187                 psd->str.u.cStr[5] = (pStatStruct->st_mode & S_IWGRP) ? 'w' : '-';
1188                 psd->str.u.cStr[6] = (pStatStruct->st_mode & S_IXGRP) ? 'x' : '-';
1189                 psd->str.u.cStr[7] = (pStatStruct->st_mode & S_IROTH) ? 'r' : '-';
1190                 psd->str.u.cStr[8] = (pStatStruct->st_mode & S_IWOTH) ? 'w' : '-';
1191                 psd->str.u.cStr[9] = (pStatStruct->st_mode & S_IXOTH) ? 'x' : '-';
1192                 psd->str.u.cStr[10] = '\0';
1193                 break;
1194             case 2:
1195                 pPasswd = getpwuid(pStatStruct->st_uid);
1196                 if (pPasswd) strcpy(psd->str.u.cStr, pPasswd->pw_name);
1197                 break;
1198             case 3:
1199                 pGroup = getgrgid(pStatStruct->st_gid);
1200                 if (pGroup) strcpy(psd->str.u.cStr, pGroup->gr_name);
1201                 break;
1202             case 4:
1203                 _ILGetFileSize(pidl, psd->str.u.cStr, MAX_PATH);
1204                 break;
1205             case 5:
1206                 _ILGetFileDate(pidl, psd->str.u.cStr, MAX_PATH);
1207                 break;
1208         }
1209     }
1210
1211     return hr;
1212 }
1213
1214 static HRESULT WINAPI UnixFolder_IShellFolder2_MapColumnToSCID(IShellFolder2* iface, UINT iColumn,
1215     SHCOLUMNID *pscid)
1216 {
1217     TRACE("stub\n");
1218     return E_NOTIMPL;
1219 }
1220
1221 /* VTable for UnixFolder's IShellFolder2 interface.
1222  */
1223 static const IShellFolder2Vtbl UnixFolder_IShellFolder2_Vtbl = {
1224     UnixFolder_IShellFolder2_QueryInterface,
1225     UnixFolder_IShellFolder2_AddRef,
1226     UnixFolder_IShellFolder2_Release,
1227     UnixFolder_IShellFolder2_ParseDisplayName,
1228     UnixFolder_IShellFolder2_EnumObjects,
1229     UnixFolder_IShellFolder2_BindToObject,
1230     UnixFolder_IShellFolder2_BindToStorage,
1231     UnixFolder_IShellFolder2_CompareIDs,
1232     UnixFolder_IShellFolder2_CreateViewObject,
1233     UnixFolder_IShellFolder2_GetAttributesOf,
1234     UnixFolder_IShellFolder2_GetUIObjectOf,
1235     UnixFolder_IShellFolder2_GetDisplayNameOf,
1236     UnixFolder_IShellFolder2_SetNameOf,
1237     UnixFolder_IShellFolder2_GetDefaultSearchGUID,
1238     UnixFolder_IShellFolder2_EnumSearches,
1239     UnixFolder_IShellFolder2_GetDefaultColumn,
1240     UnixFolder_IShellFolder2_GetDefaultColumnState,
1241     UnixFolder_IShellFolder2_GetDetailsEx,
1242     UnixFolder_IShellFolder2_GetDetailsOf,
1243     UnixFolder_IShellFolder2_MapColumnToSCID
1244 };
1245
1246 static HRESULT WINAPI UnixFolder_IPersistFolder2_QueryInterface(IPersistFolder2* This, REFIID riid,
1247     void** ppvObject)
1248 {
1249     return UnixFolder_IShellFolder2_QueryInterface(
1250                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This), riid, ppvObject);
1251 }
1252
1253 static ULONG WINAPI UnixFolder_IPersistFolder2_AddRef(IPersistFolder2* This)
1254 {
1255     return UnixFolder_IShellFolder2_AddRef(
1256                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1257 }
1258
1259 static ULONG WINAPI UnixFolder_IPersistFolder2_Release(IPersistFolder2* This)
1260 {
1261     return UnixFolder_IShellFolder2_Release(
1262                 (IShellFolder2*)ADJUST_THIS(UnixFolder, IPersistFolder2, This));
1263 }
1264
1265 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetClassID(IPersistFolder2* This, CLSID* pClassID)
1266 {
1267     TRACE("stub\n");
1268     return E_NOTIMPL;
1269 }
1270
1271 static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* iface, LPCITEMIDLIST pidl)
1272 {
1273     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1274
1275     TRACE("(iface=%p, pidl=%p)\n", iface, pidl);
1276
1277     This->m_pidlLocation = ILClone(pidl);
1278
1279     pdump(pidl);
1280
1281     if (!UNIXFS_pidl_to_path(pidl, This))
1282         return E_FAIL;
1283
1284     if (!strcmp(This->m_pszPath, "/")) {
1285         struct stat statRoot;
1286         if (stat(This->m_pszPath, &statRoot)) return E_FAIL;
1287         dwRootAttr = SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR;
1288         if (UNIXFS_is_dos_device(&statRoot)) dwRootAttr |= SFGAO_FILESYSTEM;
1289     }
1290
1291     return S_OK;
1292 }
1293
1294 static HRESULT WINAPI UnixFolder_IPersistFolder2_GetCurFolder(IPersistFolder2* iface, LPITEMIDLIST* ppidl)
1295 {
1296     UnixFolder *This = ADJUST_THIS(UnixFolder, IPersistFolder2, iface);
1297
1298     TRACE ("(iface=%p, ppidl=%p)\n", iface, ppidl);
1299
1300     if (!ppidl)
1301         return E_POINTER;
1302     *ppidl = ILClone (This->m_pidlLocation);
1303     return S_OK;
1304 }
1305
1306 /* VTable for UnixFolder's IPersistFolder interface.
1307  */
1308 static const IPersistFolder2Vtbl UnixFolder_IPersistFolder2_Vtbl = {
1309     UnixFolder_IPersistFolder2_QueryInterface,
1310     UnixFolder_IPersistFolder2_AddRef,
1311     UnixFolder_IPersistFolder2_Release,
1312     UnixFolder_IPersistFolder2_GetClassID,
1313     UnixFolder_IPersistFolder2_Initialize,
1314     UnixFolder_IPersistFolder2_GetCurFolder
1315 };
1316
1317 static HRESULT WINAPI UnixFolder_ISFHelper_QueryInterface(ISFHelper* iface, REFIID riid,
1318     void** ppvObject)
1319 {
1320     return UnixFolder_IShellFolder2_QueryInterface(
1321                 (IShellFolder2*)ADJUST_THIS(UnixFolder, ISFHelper, iface), riid, ppvObject);
1322 }
1323
1324 static ULONG WINAPI UnixFolder_ISFHelper_AddRef(ISFHelper* iface)
1325 {
1326     return UnixFolder_IShellFolder2_AddRef(
1327                 (IShellFolder2*)ADJUST_THIS(UnixFolder, ISFHelper, iface));
1328 }
1329
1330 static ULONG WINAPI UnixFolder_ISFHelper_Release(ISFHelper* iface)
1331 {
1332     return UnixFolder_IShellFolder2_Release(
1333                 (IShellFolder2*)ADJUST_THIS(UnixFolder, ISFHelper, iface));
1334 }
1335
1336 static HRESULT WINAPI UnixFolder_ISFHelper_GetUniqueName(ISFHelper* iface, LPSTR lpName, UINT uLen)
1337 {
1338     UnixFolder *This = ADJUST_THIS(UnixFolder, ISFHelper, iface);
1339     IEnumIDList *pEnum;
1340     HRESULT hr;
1341     LPITEMIDLIST pidlElem;
1342     DWORD dwFetched;
1343     int i;
1344     static const char szNewFolder[] = "New Folder";
1345
1346     TRACE("(iface=%p, lpName=%p, uLen=%u)\n", iface, lpName, uLen);
1347
1348     if (uLen < sizeof(szNewFolder)+3)
1349         return E_INVALIDARG;
1350
1351     hr = IShellFolder2_EnumObjects(STATIC_CAST(IShellFolder2, This), 0,
1352                                    SHCONTF_FOLDERS|SHCONTF_NONFOLDERS|SHCONTF_INCLUDEHIDDEN, &pEnum);
1353     if (SUCCEEDED(hr)) {
1354         lstrcpyA(lpName, szNewFolder);
1355         IEnumIDList_Reset(pEnum);
1356         i = 2;
1357         while ((IEnumIDList_Next(pEnum, 1, &pidlElem, &dwFetched) == S_OK) && (dwFetched == 1)) {
1358             if (!strcasecmp(_ILGetTextPointer(pidlElem), lpName)) {
1359                 IEnumIDList_Reset(pEnum);
1360                 sprintf(lpName, "%s %d", szNewFolder, i++);
1361                 if (i > 99) {
1362                     hr = E_FAIL;
1363                     break;
1364                 }
1365             }
1366         }
1367         IEnumIDList_Release(pEnum);
1368     }
1369     return hr;
1370 }
1371
1372 static HRESULT WINAPI UnixFolder_ISFHelper_AddFolder(ISFHelper* iface, HWND hwnd, LPCSTR pszName,
1373     LPITEMIDLIST* ppidlOut)
1374 {
1375     UnixFolder *This = ADJUST_THIS(UnixFolder, ISFHelper, iface);
1376     char szNewDir[FILENAME_MAX];
1377
1378     TRACE("(iface=%p, hwnd=%p, pszName=%s, ppidlOut=%p)\n", iface, hwnd, pszName, ppidlOut);
1379
1380     if (ppidlOut)
1381         *ppidlOut = NULL;
1382
1383     lstrcpyA(szNewDir, This->m_pszPath);
1384     lstrcatA(szNewDir, pszName);
1385
1386     if (mkdir(szNewDir, 0755)) {
1387         char szMessage[256 + FILENAME_MAX];
1388         char szCaption[256];
1389
1390         LoadStringA(shell32_hInstance, IDS_CREATEFOLDER_DENIED, szCaption, sizeof(szCaption));
1391         sprintf(szMessage, szCaption, szNewDir);
1392         LoadStringA(shell32_hInstance, IDS_CREATEFOLDER_CAPTION, szCaption, sizeof(szCaption));
1393         MessageBoxA(hwnd, szMessage, szCaption, MB_OK | MB_ICONEXCLAMATION);
1394
1395         return E_FAIL;
1396     } else {
1397         LPITEMIDLIST pidlRelative;
1398         WCHAR wszName[MAX_PATH];
1399
1400         /* Update the folder's children */
1401         UNIXFS_build_subfolder_pidls(This);
1402
1403         /* Inform the shell */
1404         MultiByteToWideChar(CP_ACP, 0, pszName, -1, wszName, MAX_PATH);
1405         if (UNIXFS_path_to_pidl(This, wszName, &pidlRelative)) {
1406             LPITEMIDLIST pidlAbsolute = ILCombine(This->m_pidlLocation, pidlRelative);
1407             if (ppidlOut)
1408                 *ppidlOut = pidlRelative;
1409             else
1410                 ILFree(pidlRelative);
1411             SHChangeNotify(SHCNE_MKDIR, SHCNF_IDLIST, pidlAbsolute, NULL);
1412             ILFree(pidlAbsolute);
1413         }
1414         return S_OK;
1415     }
1416 }
1417
1418 static HRESULT WINAPI UnixFolder_ISFHelper_DeleteItems(ISFHelper* iface, UINT cidl,
1419     LPCITEMIDLIST* apidl)
1420 {
1421     UnixFolder *This = ADJUST_THIS(UnixFolder, ISFHelper, iface);
1422     char szAbsolute[FILENAME_MAX], *pszRelative;
1423     LPITEMIDLIST pidlAbsolute;
1424     HRESULT hr = S_OK;
1425     UINT i;
1426
1427     TRACE("(iface=%p, cidl=%d, apidl=%p)\n", iface, cidl, apidl);
1428
1429     lstrcpyA(szAbsolute, This->m_pszPath);
1430     pszRelative = szAbsolute + lstrlenA(szAbsolute);
1431
1432     for (i=0; i<cidl && SUCCEEDED(hr); i++) {
1433         lstrcpyA(pszRelative, _ILGetTextPointer(apidl[i]));
1434         pidlAbsolute = ILCombine(This->m_pidlLocation, apidl[i]);
1435         if (_ILIsFolder(apidl[i])) {
1436             if (rmdir(szAbsolute)) {
1437                 hr = E_FAIL;
1438             } else {
1439                 SHChangeNotify(SHCNE_RMDIR, SHCNF_IDLIST, pidlAbsolute, NULL);
1440             }
1441         } else if (_ILIsValue(apidl[i])) {
1442             if (unlink(szAbsolute)) {
1443                 hr = E_FAIL;
1444             } else {
1445                 SHChangeNotify(SHCNE_DELETE, SHCNF_IDLIST, pidlAbsolute, NULL);
1446             }
1447         }
1448         ILFree(pidlAbsolute);
1449     }
1450     UNIXFS_build_subfolder_pidls(This);
1451
1452     return hr;
1453 }
1454
1455 static HRESULT WINAPI UnixFolder_ISFHelper_CopyItems(ISFHelper* iface, IShellFolder *psfFrom,
1456     UINT cidl, LPCITEMIDLIST *apidl)
1457 {
1458     FIXME("stub\n");
1459     return E_NOTIMPL;
1460 }
1461
1462 /* VTable for UnixFolder's ISFHelper interface
1463  */
1464 static const ISFHelperVtbl UnixFolder_ISFHelper_Vtbl = {
1465     UnixFolder_ISFHelper_QueryInterface,
1466     UnixFolder_ISFHelper_AddRef,
1467     UnixFolder_ISFHelper_Release,
1468     UnixFolder_ISFHelper_GetUniqueName,
1469     UnixFolder_ISFHelper_AddFolder,
1470     UnixFolder_ISFHelper_DeleteItems,
1471     UnixFolder_ISFHelper_CopyItems
1472 };
1473
1474 /******************************************************************************
1475  * Unix[Dos]Folder_Constructor [Internal]
1476  *
1477  * PARAMS
1478  *  pUnkOuter [I] Outer class for aggregation. Currently ignored.
1479  *  riid      [I] Interface asked for by the client.
1480  *  ppv       [O] Pointer to an riid interface to the UnixFolder object.
1481  *
1482  * NOTES
1483  *  Those are the only functions exported from shfldr_unixfs.c. They are called from
1484  *  shellole.c's default class factory and thus have to exhibit a LPFNCREATEINSTANCE
1485  *  compatible signature.
1486  *
1487  *  The UnixDosFolder_Constructor sets the dwPathMode member to PATHMODE_DOS. This
1488  *  means that paths are converted from dos to unix and back at the interfaces.
1489  */
1490 static HRESULT CreateUnixFolder(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv, DWORD dwPathMode) {
1491     HRESULT hr = E_FAIL;
1492     UnixFolder *pUnixFolder = SHAlloc((ULONG)sizeof(UnixFolder));
1493
1494     if(pUnixFolder) {
1495         pUnixFolder->lpIShellFolder2Vtbl = &UnixFolder_IShellFolder2_Vtbl;
1496         pUnixFolder->lpIPersistFolder2Vtbl = &UnixFolder_IPersistFolder2_Vtbl;
1497         pUnixFolder->lpISFHelperVtbl = &UnixFolder_ISFHelper_Vtbl;
1498         pUnixFolder->m_cRef = 0;
1499         pUnixFolder->m_pszPath = NULL;
1500         pUnixFolder->m_apidlSubDirs = NULL;
1501         pUnixFolder->m_cSubDirs = -1;
1502         pUnixFolder->m_dwPathMode = dwPathMode;
1503
1504         UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));
1505         hr = UnixFolder_IShellFolder2_QueryInterface(STATIC_CAST(IShellFolder2, pUnixFolder), riid, ppv);
1506         UnixFolder_IShellFolder2_Release(STATIC_CAST(IShellFolder2, pUnixFolder));
1507     }
1508     return hr;
1509 }
1510
1511 HRESULT WINAPI UnixFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1512     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1513     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_UNIX);
1514 }
1515
1516 HRESULT WINAPI UnixDosFolder_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv) {
1517     TRACE("(pUnkOuter=%p, riid=%p, ppv=%p)\n", pUnkOuter, riid, ppv);
1518     return CreateUnixFolder(pUnkOuter, riid, ppv, PATHMODE_DOS);
1519 }
1520
1521 /******************************************************************************
1522  * UnixSubFolderIterator
1523  *
1524  * Class whose heap based objects represent iterators over the sub-directories
1525  * of a given UnixFolder object.
1526  */
1527
1528 /* UnixSubFolderIterator object layout and typedef.
1529  */
1530 typedef struct _UnixSubFolderIterator {
1531     const IEnumIDListVtbl *lpIEnumIDListVtbl;
1532     LONG m_cRef;
1533     UnixFolder *m_pUnixFolder;
1534     ULONG m_cIdx;
1535     SHCONTF m_fFilter;
1536 } UnixSubFolderIterator;
1537
1538 static void UnixSubFolderIterator_Destroy(UnixSubFolderIterator *iterator) {
1539     TRACE("(iterator=%p)\n", iterator);
1540
1541     UnixFolder_IShellFolder2_Release((IShellFolder2*)iterator->m_pUnixFolder);
1542     SHFree(iterator);
1543 }
1544
1545 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_QueryInterface(IEnumIDList* iface,
1546     REFIID riid, void** ppv)
1547 {
1548     TRACE("(iface=%p, riid=%p, ppv=%p)\n", iface, riid, ppv);
1549
1550     if (!ppv) return E_INVALIDARG;
1551
1552     if (IsEqualIID(&IID_IUnknown, riid) || IsEqualIID(&IID_IEnumIDList, riid)) {
1553         *ppv = iface;
1554     } else {
1555         *ppv = NULL;
1556         return E_NOINTERFACE;
1557     }
1558
1559     IEnumIDList_AddRef(iface);
1560     return S_OK;
1561 }
1562
1563 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_AddRef(IEnumIDList* iface)
1564 {
1565     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1566
1567     TRACE("(iface=%p)\n", iface);
1568
1569     return InterlockedIncrement(&This->m_cRef);
1570 }
1571
1572 static ULONG WINAPI UnixSubFolderIterator_IEnumIDList_Release(IEnumIDList* iface)
1573 {
1574     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1575     ULONG cRef;
1576
1577     TRACE("(iface=%p)\n", iface);
1578
1579     cRef = InterlockedDecrement(&This->m_cRef);
1580
1581     if (!cRef)
1582         UnixSubFolderIterator_Destroy(This);
1583
1584     return cRef;
1585 }
1586
1587 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Next(IEnumIDList* iface, ULONG celt,
1588     LPITEMIDLIST* rgelt, ULONG* pceltFetched)
1589 {
1590     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1591     ULONG i;
1592
1593     TRACE("(iface=%p, celt=%ld, rgelt=%p, pceltFetched=%p)\n", iface, celt, rgelt, pceltFetched);
1594
1595     for (i=0; (i < celt) && (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs); This->m_cIdx++) {
1596         LPITEMIDLIST pCurrent = This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx];
1597         if (UNIXFS_is_pidl_of_type(pCurrent, This->m_fFilter)) {
1598             rgelt[i] = ILClone(pCurrent);
1599             i++;
1600         }
1601     }
1602
1603     if (pceltFetched)
1604         *pceltFetched = i;
1605
1606     return (i == 0) ? S_FALSE : S_OK;
1607 }
1608
1609 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Skip(IEnumIDList* iface, ULONG celt)
1610 {
1611     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1612     ULONG i;
1613
1614     TRACE("(iface=%p, celt=%ld)\n", iface, celt);
1615
1616     for (i=0; i < celt; i++) {
1617         while (This->m_cIdx < This->m_pUnixFolder->m_cSubDirs &&
1618                !UNIXFS_is_pidl_of_type(This->m_pUnixFolder->m_apidlSubDirs[This->m_cIdx], This->m_fFilter))
1619         {
1620             This->m_cIdx++;
1621         }
1622         This->m_cIdx++;
1623     }
1624
1625     if (This->m_cIdx > This->m_pUnixFolder->m_cSubDirs) {
1626         This->m_cIdx = This->m_pUnixFolder->m_cSubDirs;
1627         return S_FALSE;
1628     } else {
1629         return S_OK;
1630     }
1631 }
1632
1633 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Reset(IEnumIDList* iface)
1634 {
1635     UnixSubFolderIterator *This = ADJUST_THIS(UnixSubFolderIterator, IEnumIDList, iface);
1636
1637     TRACE("(iface=%p)\n", iface);
1638
1639     This->m_cIdx = 0;
1640
1641     return S_OK;
1642 }
1643
1644 static HRESULT WINAPI UnixSubFolderIterator_IEnumIDList_Clone(IEnumIDList* This,
1645     IEnumIDList** ppenum)
1646 {
1647     TRACE("stub\n");
1648     return E_NOTIMPL;
1649 }
1650
1651 /* VTable for UnixSubFolderIterator's IEnumIDList interface.
1652  */
1653 static const IEnumIDListVtbl UnixSubFolderIterator_IEnumIDList_Vtbl = {
1654     UnixSubFolderIterator_IEnumIDList_QueryInterface,
1655     UnixSubFolderIterator_IEnumIDList_AddRef,
1656     UnixSubFolderIterator_IEnumIDList_Release,
1657     UnixSubFolderIterator_IEnumIDList_Next,
1658     UnixSubFolderIterator_IEnumIDList_Skip,
1659     UnixSubFolderIterator_IEnumIDList_Reset,
1660     UnixSubFolderIterator_IEnumIDList_Clone
1661 };
1662
1663 static IUnknown *UnixSubFolderIterator_Construct(UnixFolder *pUnixFolder, SHCONTF fFilter) {
1664     UnixSubFolderIterator *iterator;
1665
1666     TRACE("(pUnixFolder=%p)\n", pUnixFolder);
1667
1668     iterator = SHAlloc((ULONG)sizeof(UnixSubFolderIterator));
1669     iterator->lpIEnumIDListVtbl = &UnixSubFolderIterator_IEnumIDList_Vtbl;
1670     iterator->m_cRef = 0;
1671     iterator->m_cIdx = 0;
1672     iterator->m_pUnixFolder = pUnixFolder;
1673     iterator->m_fFilter = fFilter;
1674
1675     UnixSubFolderIterator_IEnumIDList_AddRef((IEnumIDList*)iterator);
1676     UnixFolder_IShellFolder2_AddRef((IShellFolder2*)pUnixFolder);
1677
1678     return (IUnknown*)iterator;
1679 }