2 Unix SMB/CIFS implementation.
3 Directory handling routines
4 Copyright (C) Andrew Tridgell 1992-1998
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program 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
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 This module implements directory related functions for Samba.
27 /* Make directory handle internals available. */
29 #define NAME_CACHE_SIZE 100
31 struct name_cache_entry {
37 connection_struct *conn;
41 struct name_cache_entry *name_cache;
42 unsigned int name_cache_index;
46 struct dptr_struct *next, *prev;
49 struct connection_struct *conn;
50 struct smb_Dir *dir_hnd;
55 BOOL has_wild; /* Set to true if the wcard entry has MS wildcard characters in it. */
58 static struct bitmap *dptr_bmap;
59 static struct dptr_struct *dirptrs;
60 static int dirhandles_open = 0;
62 #define INVALID_DPTR_KEY (-3)
64 /****************************************************************************
65 Initialise the dir bitmap.
66 ****************************************************************************/
70 static BOOL dptrs_init=False;
75 dptr_bmap = bitmap_allocate(MAX_DIRECTORY_HANDLES);
78 exit_server("out of memory in init_dptrs");
83 /****************************************************************************
84 Idle a dptr - the directory is closed but the control info is kept.
85 ****************************************************************************/
87 static void dptr_idle(struct dptr_struct *dptr)
90 DEBUG(4,("Idling dptr dnum %d\n",dptr->dnum));
91 CloseDir(dptr->dir_hnd);
96 /****************************************************************************
98 ****************************************************************************/
100 static void dptr_idleoldest(void)
102 struct dptr_struct *dptr;
105 * Go to the end of the list.
107 for(dptr = dirptrs; dptr && dptr->next; dptr = dptr->next)
111 DEBUG(0,("No dptrs available to idle ?\n"));
116 * Idle the oldest pointer.
119 for(; dptr; dptr = dptr->prev) {
127 /****************************************************************************
128 Get the struct dptr_struct for a dir index.
129 ****************************************************************************/
131 static struct dptr_struct *dptr_get(int key, BOOL forclose)
133 struct dptr_struct *dptr;
135 for(dptr = dirptrs; dptr; dptr = dptr->next) {
136 if(dptr->dnum == key) {
137 if (!forclose && !dptr->dir_hnd) {
138 if (dirhandles_open >= MAX_OPEN_DIRECTORIES)
140 DEBUG(4,("dptr_get: Reopening dptr key %d\n",key));
141 if (!(dptr->dir_hnd = OpenDir(dptr->conn, dptr->path))) {
142 DEBUG(4,("dptr_get: Failed to open %s (%s)\n",dptr->path,
147 DLIST_PROMOTE(dirptrs,dptr);
154 /****************************************************************************
155 Get the dir path for a dir index.
156 ****************************************************************************/
158 char *dptr_path(int key)
160 struct dptr_struct *dptr = dptr_get(key, False);
166 /****************************************************************************
167 Get the dir wcard for a dir index.
168 ****************************************************************************/
170 char *dptr_wcard(int key)
172 struct dptr_struct *dptr = dptr_get(key, False);
178 /****************************************************************************
179 Get the dir attrib for a dir index.
180 ****************************************************************************/
182 uint16 dptr_attr(int key)
184 struct dptr_struct *dptr = dptr_get(key, False);
190 /****************************************************************************
191 Set the dir wcard for a dir index.
192 Returns 0 on ok, 1 on fail.
193 ****************************************************************************/
195 BOOL dptr_set_wcard_and_attributes(int key, const char *wcard, uint16 attr)
197 struct dptr_struct *dptr = dptr_get(key, False);
201 dptr->wcard = SMB_STRDUP(wcard);
204 if (wcard[0] == '.' && wcard[1] == 0) {
205 dptr->has_wild = True;
207 dptr->has_wild = ms_has_wild(wcard);
214 /****************************************************************************
215 Close a dptr (internal func).
216 ****************************************************************************/
218 static void dptr_close_internal(struct dptr_struct *dptr)
220 DEBUG(4,("closing dptr key %d\n",dptr->dnum));
222 DLIST_REMOVE(dirptrs, dptr);
225 * Free the dnum in the bitmap. Remember the dnum value is always
226 * biased by one with respect to the bitmap.
229 if(bitmap_query( dptr_bmap, dptr->dnum - 1) != True) {
230 DEBUG(0,("dptr_close_internal : Error - closing dnum = %d and bitmap not set !\n",
234 bitmap_clear(dptr_bmap, dptr->dnum - 1);
237 CloseDir(dptr->dir_hnd);
240 /* Lanman 2 specific code */
241 SAFE_FREE(dptr->wcard);
242 string_set(&dptr->path,"");
246 /****************************************************************************
247 Close a dptr given a key.
248 ****************************************************************************/
250 void dptr_close(int *key)
252 struct dptr_struct *dptr;
254 if(*key == INVALID_DPTR_KEY)
257 /* OS/2 seems to use -1 to indicate "close all directories" */
259 struct dptr_struct *next;
260 for(dptr = dirptrs; dptr; dptr = next) {
262 dptr_close_internal(dptr);
264 *key = INVALID_DPTR_KEY;
268 dptr = dptr_get(*key, True);
271 DEBUG(0,("Invalid key %d given to dptr_close\n", *key));
275 dptr_close_internal(dptr);
277 *key = INVALID_DPTR_KEY;
280 /****************************************************************************
281 Close all dptrs for a cnum.
282 ****************************************************************************/
284 void dptr_closecnum(connection_struct *conn)
286 struct dptr_struct *dptr, *next;
287 for(dptr = dirptrs; dptr; dptr = next) {
289 if (dptr->conn == conn)
290 dptr_close_internal(dptr);
294 /****************************************************************************
295 Idle all dptrs for a cnum.
296 ****************************************************************************/
298 void dptr_idlecnum(connection_struct *conn)
300 struct dptr_struct *dptr;
301 for(dptr = dirptrs; dptr; dptr = dptr->next) {
302 if (dptr->conn == conn && dptr->dir_hnd)
307 /****************************************************************************
308 Close a dptr that matches a given path, only if it matches the spid also.
309 ****************************************************************************/
311 void dptr_closepath(char *path,uint16 spid)
313 struct dptr_struct *dptr, *next;
314 for(dptr = dirptrs; dptr; dptr = next) {
316 if (spid == dptr->spid && strequal(dptr->path,path))
317 dptr_close_internal(dptr);
321 /****************************************************************************
322 Try and close the oldest handle not marked for
323 expect close in the hope that the client has
324 finished with that one.
325 ****************************************************************************/
327 static void dptr_close_oldest(BOOL old)
329 struct dptr_struct *dptr;
332 * Go to the end of the list.
334 for(dptr = dirptrs; dptr && dptr->next; dptr = dptr->next)
338 DEBUG(0,("No old dptrs available to close oldest ?\n"));
343 * If 'old' is true, close the oldest oldhandle dnum (ie. 1 < dnum < 256) that
344 * does not have expect_close set. If 'old' is false, close
345 * one of the new dnum handles.
348 for(; dptr; dptr = dptr->prev) {
349 if ((old && (dptr->dnum < 256) && !dptr->expect_close) ||
350 (!old && (dptr->dnum > 255))) {
351 dptr_close_internal(dptr);
357 /****************************************************************************
358 Create a new dir ptr. If the flag old_handle is true then we must allocate
359 from the bitmap range 0 - 255 as old SMBsearch directory handles are only
360 one byte long. If old_handle is false we allocate from the range
361 256 - MAX_DIRECTORY_HANDLES. We bias the number we return by 1 to ensure
362 a directory handle is never zero.
363 ****************************************************************************/
365 int dptr_create(connection_struct *conn, pstring path, BOOL old_handle, BOOL expect_close,uint16 spid)
367 struct dptr_struct *dptr = NULL;
368 struct smb_Dir *dir_hnd;
371 DEBUG(5,("dptr_create dir=%s\n", path));
373 if (!check_name(path,conn))
374 return(-2); /* Code to say use a unix error return code. */
376 /* use a const pointer from here on */
381 dir_hnd = OpenDir(conn, dir2);
386 string_set(&conn->dirpath,dir2);
388 if (dirhandles_open >= MAX_OPEN_DIRECTORIES)
391 dptr = SMB_MALLOC_P(struct dptr_struct);
393 DEBUG(0,("malloc fail in dptr_create.\n"));
403 * This is an old-style SMBsearch request. Ensure the
404 * value we return will fit in the range 1-255.
407 dptr->dnum = bitmap_find(dptr_bmap, 0);
409 if(dptr->dnum == -1 || dptr->dnum > 254) {
412 * Try and close the oldest handle not marked for
413 * expect close in the hope that the client has
414 * finished with that one.
417 dptr_close_oldest(True);
419 /* Now try again... */
420 dptr->dnum = bitmap_find(dptr_bmap, 0);
421 if(dptr->dnum == -1 || dptr->dnum > 254) {
422 DEBUG(0,("dptr_create: returned %d: Error - all old dirptrs in use ?\n", dptr->dnum));
431 * This is a new-style trans2 request. Allocate from
432 * a range that will return 256 - MAX_DIRECTORY_HANDLES.
435 dptr->dnum = bitmap_find(dptr_bmap, 255);
437 if(dptr->dnum == -1 || dptr->dnum < 255) {
440 * Try and close the oldest handle close in the hope that
441 * the client has finished with that one. This will only
442 * happen in the case of the Win98 client bug where it leaks
446 dptr_close_oldest(False);
448 /* Now try again... */
449 dptr->dnum = bitmap_find(dptr_bmap, 255);
451 if(dptr->dnum == -1 || dptr->dnum < 255) {
452 DEBUG(0,("dptr_create: returned %d: Error - all new dirptrs in use ?\n", dptr->dnum));
460 bitmap_set(dptr_bmap, dptr->dnum);
462 dptr->dnum += 1; /* Always bias the dnum by one - no zero dnums allowed. */
464 string_set(&dptr->path,dir2);
466 dptr->dir_hnd = dir_hnd;
468 dptr->expect_close = expect_close;
469 dptr->wcard = NULL; /* Only used in lanman2 searches */
470 dptr->attr = 0; /* Only used in lanman2 searches */
471 dptr->has_wild = True; /* Only used in lanman2 searches */
473 DLIST_ADD(dirptrs, dptr);
475 DEBUG(3,("creating new dirptr %d for path %s, expect_close = %d\n",
476 dptr->dnum,path,expect_close));
484 /****************************************************************************
485 Wrapper functions to access the lower level directory handles.
486 ****************************************************************************/
488 int dptr_CloseDir(struct dptr_struct *dptr)
490 return CloseDir(dptr->dir_hnd);
493 void dptr_SeekDir(struct dptr_struct *dptr, long offset)
495 SeekDir(dptr->dir_hnd, offset);
498 long dptr_TellDir(struct dptr_struct *dptr)
500 return TellDir(dptr->dir_hnd);
503 /****************************************************************************
504 Return the next visible file name, skipping veto'd and invisible files.
505 ****************************************************************************/
507 static const char *dptr_normal_ReadDirName(struct dptr_struct *dptr, long *poffset, SMB_STRUCT_STAT *pst)
509 /* Normal search for the next file. */
511 while ((name = ReadDirName(dptr->dir_hnd, poffset)) != NULL) {
512 if (is_visible_file(dptr->conn, dptr->path, name, pst, True)) {
519 /****************************************************************************
520 Return the next visible file name, skipping veto'd and invisible files.
521 ****************************************************************************/
523 const char *dptr_ReadDirName(struct dptr_struct *dptr, long *poffset, SMB_STRUCT_STAT *pst)
528 if (dptr->has_wild) {
529 return dptr_normal_ReadDirName(dptr, poffset, pst);
532 /* We know the stored wcard contains no wildcard characters. See if we can match
533 with a stat call. If we can't, then set has_wild to true to
534 prevent us from doing this on every call. */
536 /* First check if it should be visible. */
537 if (!is_visible_file(dptr->conn, dptr->path, dptr->wcard, pst, True)) {
538 dptr->has_wild = True;
539 return dptr_normal_ReadDirName(dptr, poffset, pst);
542 if (VALID_STAT(*pst)) {
546 pstrcpy(pathreal,dptr->path);
547 pstrcat(pathreal,"/");
548 pstrcat(pathreal,dptr->wcard);
550 if (SMB_VFS_STAT(dptr->conn,pathreal,pst) == 0) {
553 /* If we get any other error than ENOENT or ENOTDIR
554 then the file exists we just can't stat it. */
555 if (errno != ENOENT && errno != ENOTDIR) {
560 dptr->has_wild = True;
562 /* In case sensitive mode we don't search - we know if it doesn't exist
563 with a stat we will fail. */
565 if (dptr->conn->case_sensitive) {
568 return dptr_normal_ReadDirName(dptr, poffset, pst);
572 /****************************************************************************
573 Search for a file by name, skipping veto'ed and not visible files.
574 ****************************************************************************/
576 BOOL dptr_SearchDir(struct dptr_struct *dptr, const char *name, long *poffset, SMB_STRUCT_STAT *pst)
581 while ((ret = SearchDir(dptr->dir_hnd, name, poffset)) == True) {
582 if (is_visible_file(dptr->conn, dptr->path, name, pst, True)) {
589 /****************************************************************************
590 Fill the 5 byte server reserved dptr field.
591 ****************************************************************************/
593 BOOL dptr_fill(char *buf1,unsigned int key)
595 unsigned char *buf = (unsigned char *)buf1;
596 struct dptr_struct *dptr = dptr_get(key, False);
599 DEBUG(1,("filling null dirptr %d\n",key));
602 offset = TellDir(dptr->dir_hnd);
603 DEBUG(6,("fill on key %u dirptr 0x%lx now at %d\n",key,
604 (long)dptr->dir_hnd,(int)offset));
606 SIVAL(buf,1,offset | DPTR_MASK);
610 /****************************************************************************
611 Fetch the dir ptr and seek it given the 5 byte server field.
612 ****************************************************************************/
614 struct dptr_struct *dptr_fetch(char *buf,int *num)
616 unsigned int key = *(unsigned char *)buf;
617 struct dptr_struct *dptr = dptr_get(key, False);
621 DEBUG(3,("fetched null dirptr %d\n",key));
625 offset = IVAL(buf,1)&~DPTR_MASK;
626 SeekDir(dptr->dir_hnd,(long)offset);
627 DEBUG(3,("fetching dirptr %d for path %s at offset %d\n",
628 key,dptr_path(key),offset));
632 /****************************************************************************
634 ****************************************************************************/
636 struct dptr_struct *dptr_fetch_lanman2(int dptr_num)
638 struct dptr_struct *dptr = dptr_get(dptr_num, False);
641 DEBUG(3,("fetched null dirptr %d\n",dptr_num));
644 DEBUG(3,("fetching dirptr %d for path %s\n",dptr_num,dptr_path(dptr_num)));
648 /****************************************************************************
649 Check a filetype for being valid.
650 ****************************************************************************/
652 BOOL dir_check_ftype(connection_struct *conn,int mode,int dirtype)
656 /* Check the "may have" search bits. */
657 if (((mode & ~dirtype) & (aHIDDEN | aSYSTEM | aDIR)) != 0)
660 /* Check the "must have" bits, which are the may have bits shifted eight */
661 /* If must have bit is set, the file/dir can not be returned in search unless the matching
662 file attribute is set */
663 mask = ((dirtype >> 8) & (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM)); /* & 0x37 */
665 if((mask & (mode & (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM))) == mask) /* check if matching attribute present */
674 static BOOL mangle_mask_match(connection_struct *conn, fstring filename, char *mask)
676 mangle_map(filename,True,False,SNUM(conn));
677 return mask_match(filename,mask,False);
680 /****************************************************************************
681 Get an 8.3 directory entry.
682 ****************************************************************************/
684 BOOL get_dir_entry(connection_struct *conn,char *mask,int dirtype, pstring fname,
685 SMB_OFF_T *size,int *mode,time_t *date,BOOL check_descend)
689 SMB_STRUCT_STAT sbuf;
696 *path = *pathreal = *filename = 0;
698 isrootdir = (strequal(conn->dirpath,"./") ||
699 strequal(conn->dirpath,".") ||
700 strequal(conn->dirpath,"/"));
702 needslash = ( conn->dirpath[strlen(conn->dirpath) -1] != '/');
708 long curoff = dptr_TellDir(conn->dirptr);
709 dname = dptr_ReadDirName(conn->dirptr, &curoff, &sbuf);
711 DEBUG(6,("readdir on dirptr 0x%lx now at offset %ld\n",
712 (long)conn->dirptr,TellDir(conn->dirptr->dir_hnd)));
717 pstrcpy(filename,dname);
719 /* notice the special *.* handling. This appears to be the only difference
720 between the wildcard handling in this routine and in the trans2 routines.
721 see masktest for a demo
723 if ((strcmp(mask,"*.*") == 0) ||
724 mask_match(filename,mask,False) ||
725 mangle_mask_match(conn,filename,mask)) {
726 if (isrootdir && (strequal(filename,"..") || strequal(filename,".")))
729 if (!mangle_is_8_3(filename, False))
730 mangle_map(filename,True,False,SNUM(conn));
732 pstrcpy(fname,filename);
734 pstrcpy(path,conn->dirpath);
737 pstrcpy(pathreal,path);
739 pstrcat(pathreal,dname);
740 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn, pathreal, &sbuf)) != 0) {
741 DEBUG(5,("Couldn't stat 1 [%s]. Error = %s\n",path, strerror(errno) ));
745 *mode = dos_mode(conn,pathreal,&sbuf);
747 if (!dir_check_ftype(conn,*mode,dirtype)) {
748 DEBUG(5,("[%s] attribs didn't match %x\n",filename,dirtype));
752 *size = sbuf.st_size;
753 *date = sbuf.st_mtime;
755 DEBUG(3,("get_dir_entry mask=[%s] found %s fname=%s\n",mask, pathreal,fname));
764 /*******************************************************************
765 Check to see if a user can read a file. This is only approximate,
766 it is used as part of the "hide unreadable" option. Don't
767 use it for anything security sensitive.
768 ********************************************************************/
770 static BOOL user_can_read_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
772 extern struct current_user current_user;
773 SEC_DESC *psd = NULL;
778 uint32 access_granted;
781 * If user is a member of the Admin group
782 * we never hide files from them.
785 if (conn->admin_user)
788 /* If we can't stat it does not show it */
789 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
792 /* Pseudo-open the file (note - no fd's created). */
794 if(S_ISDIR(pst->st_mode))
795 fsp = open_directory(conn, name, pst, 0, SET_DENY_MODE(DENY_NONE), (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN),
798 fsp = open_file_stat(conn, name, pst);
803 /* Get NT ACL -allocated in main loop talloc context. No free needed here. */
804 sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
805 (OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
806 close_file(fsp, True);
808 /* No access if SD get failed. */
812 return se_access_check(psd, current_user.nt_user_token, FILE_READ_DATA,
813 &access_granted, &status);
816 /*******************************************************************
817 Check to see if a user can write a file (and only files, we do not
818 check dirs on this one). This is only approximate,
819 it is used as part of the "hide unwriteable" option. Don't
820 use it for anything security sensitive.
821 ********************************************************************/
823 static BOOL user_can_write_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
825 extern struct current_user current_user;
826 SEC_DESC *psd = NULL;
832 uint32 access_granted;
835 * If user is a member of the Admin group
836 * we never hide files from them.
839 if (conn->admin_user)
842 /* If we can't stat it does not show it */
843 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
846 /* Pseudo-open the file (note - no fd's created). */
848 if(S_ISDIR(pst->st_mode))
851 fsp = open_file_shared1(conn, name, pst, FILE_WRITE_ATTRIBUTES, SET_DENY_MODE(DENY_NONE),
852 (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN), FILE_ATTRIBUTE_NORMAL, INTERNAL_OPEN_ONLY,
853 &access_mode, &smb_action);
858 /* Get NT ACL -allocated in main loop talloc context. No free needed here. */
859 sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
860 (OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
861 close_file(fsp, False);
863 /* No access if SD get failed. */
867 return se_access_check(psd, current_user.nt_user_token, FILE_WRITE_DATA,
868 &access_granted, &status);
871 /*******************************************************************
872 Is a file a "special" type ?
873 ********************************************************************/
875 static BOOL file_is_special(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
878 * If user is a member of the Admin group
879 * we never hide files from them.
882 if (conn->admin_user)
885 /* If we can't stat it does not show it */
886 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
889 if (S_ISREG(pst->st_mode) || S_ISDIR(pst->st_mode) || S_ISLNK(pst->st_mode))
895 /*******************************************************************
896 Should the file be seen by the client ?
897 ********************************************************************/
899 BOOL is_visible_file(connection_struct *conn, const char *dir_path, const char *name, SMB_STRUCT_STAT *pst, BOOL use_veto)
901 BOOL hide_unreadable = lp_hideunreadable(SNUM(conn));
902 BOOL hide_unwriteable = lp_hideunwriteable_files(SNUM(conn));
903 BOOL hide_special = lp_hide_special_files(SNUM(conn));
907 if ((strcmp(".",name) == 0) || (strcmp("..",name) == 0)) {
908 return True; /* . and .. are always visible. */
911 /* If it's a vetoed file, pretend it doesn't even exist */
912 if (use_veto && IS_VETO_PATH(conn, name)) {
916 if (hide_unreadable || hide_unwriteable || hide_special) {
919 if (asprintf(&entry, "%s/%s", dir_path, name) == -1) {
922 /* Honour _hide unreadable_ option */
923 if (hide_unreadable && !user_can_read_file(conn, entry, pst)) {
927 /* Honour _hide unwriteable_ option */
928 if (hide_unwriteable && !user_can_write_file(conn, entry, pst)) {
932 /* Honour _hide_special_ option */
933 if (hide_special && !file_is_special(conn, entry, pst)) {
942 /*******************************************************************
944 ********************************************************************/
946 struct smb_Dir *OpenDir(connection_struct *conn, const char *name)
948 struct smb_Dir *dirp = SMB_MALLOC_P(struct smb_Dir);
956 dirp->dir_path = SMB_STRDUP(name);
957 if (!dirp->dir_path) {
960 dirp->dir = SMB_VFS_OPENDIR(conn, dirp->dir_path);
962 DEBUG(5,("OpenDir: Can't open %s. %s\n", dirp->dir_path, strerror(errno) ));
966 dirp->name_cache = SMB_CALLOC_ARRAY(struct name_cache_entry, NAME_CACHE_SIZE);
967 if (!dirp->name_cache) {
978 SMB_VFS_CLOSEDIR(conn,dirp->dir);
980 SAFE_FREE(dirp->dir_path);
981 SAFE_FREE(dirp->name_cache);
988 /*******************************************************************
990 ********************************************************************/
992 int CloseDir(struct smb_Dir *dirp)
997 ret = SMB_VFS_CLOSEDIR(dirp->conn,dirp->dir);
999 SAFE_FREE(dirp->dir_path);
1000 if (dirp->name_cache) {
1001 for (i = 0; i < NAME_CACHE_SIZE; i++) {
1002 SAFE_FREE(dirp->name_cache[i].name);
1005 SAFE_FREE(dirp->name_cache);
1011 /*******************************************************************
1012 Read from a directory. Also return current offset.
1013 Don't check for veto or invisible files.
1014 ********************************************************************/
1016 const char *ReadDirName(struct smb_Dir *dirp, long *poffset)
1019 connection_struct *conn = dirp->conn;
1021 SeekDir(dirp, *poffset);
1022 while ((n = vfs_readdirname(conn, dirp->dir))) {
1023 struct name_cache_entry *e;
1024 dirp->offset = SMB_VFS_TELLDIR(conn, dirp->dir);
1025 if (dirp->offset == -1) {
1028 dirp->name_cache_index = (dirp->name_cache_index+1) % NAME_CACHE_SIZE;
1030 e = &dirp->name_cache[dirp->name_cache_index];
1032 e->name = SMB_STRDUP(n);
1033 *poffset = e->offset= dirp->offset;
1039 /*******************************************************************
1041 ********************************************************************/
1043 void SeekDir(struct smb_Dir *dirp, long offset)
1045 if (offset != dirp->offset) {
1046 SMB_VFS_SEEKDIR(dirp->conn, dirp->dir, offset);
1047 dirp->offset = offset;
1051 /*******************************************************************
1052 Tell a dir position.
1053 ********************************************************************/
1055 long TellDir(struct smb_Dir *dirp)
1057 return(dirp->offset);
1060 /*******************************************************************
1061 Find an entry by name. Leave us at the offset after it.
1062 Don't check for veto or invisible files.
1063 ********************************************************************/
1065 BOOL SearchDir(struct smb_Dir *dirp, const char *name, long *poffset)
1069 connection_struct *conn = dirp->conn;
1071 /* Search back in the name cache. */
1072 for (i = dirp->name_cache_index; i >= 0; i--) {
1073 struct name_cache_entry *e = &dirp->name_cache[i];
1074 if (e->name && (conn->case_sensitive ? (strcmp(e->name, name) == 0) : strequal(e->name, name))) {
1075 *poffset = e->offset;
1076 SeekDir(dirp, e->offset);
1080 for (i = NAME_CACHE_SIZE-1; i > dirp->name_cache_index; i--) {
1081 struct name_cache_entry *e = &dirp->name_cache[i];
1082 if (e->name && (conn->case_sensitive ? (strcmp(e->name, name) == 0) : strequal(e->name, name))) {
1083 *poffset = e->offset;
1084 SeekDir(dirp, e->offset);
1089 /* Not found in the name cache. Rewind directory and start from scratch. */
1090 SMB_VFS_REWINDDIR(conn, dirp->dir);
1092 while ((entry = ReadDirName(dirp, poffset))) {
1093 if (conn->case_sensitive ? (strcmp(entry, name) == 0) : strequal(entry, name)) {