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)
529 if (dptr->has_wild) {
530 return dptr_normal_ReadDirName(dptr, poffset, pst);
533 /* If poffset is -1 then we know we returned this name before and we have
534 no wildcards. We're at the end of the directory. */
535 if (*poffset == -1) {
539 /* We know the stored wcard contains no wildcard characters. See if we can match
540 with a stat call. If we can't, then set has_wild to true to
541 prevent us from doing this on every call. */
543 /* First check if it should be visible. */
544 if (!is_visible_file(dptr->conn, dptr->path, dptr->wcard, pst, True)) {
545 dptr->has_wild = True;
546 return dptr_normal_ReadDirName(dptr, poffset, pst);
549 if (VALID_STAT(*pst)) {
550 /* We need to set the underlying dir_hdn offset to -1 also as
551 this function is usually called with the output from TellDir. */
552 dptr->dir_hnd->offset = *poffset = -1;
556 pstrcpy(pathreal,dptr->path);
557 pstrcat(pathreal,"/");
558 pstrcat(pathreal,dptr->wcard);
560 if (SMB_VFS_STAT(dptr->conn,pathreal,pst) == 0) {
561 /* We need to set the underlying dir_hdn offset to -1 also as
562 this function is usually called with the output from TellDir. */
563 dptr->dir_hnd->offset = *poffset = -1;
566 /* If we get any other error than ENOENT or ENOTDIR
567 then the file exists we just can't stat it. */
568 if (errno != ENOENT && errno != ENOTDIR) {
569 /* We need to set the underlying dir_hdn offset to -1 also as
570 this function is usually called with the output from TellDir. */
571 dptr->dir_hnd->offset = *poffset = -1;
576 dptr->has_wild = True;
578 /* In case sensitive mode we don't search - we know if it doesn't exist
579 with a stat we will fail. */
581 if (dptr->conn->case_sensitive) {
582 /* We need to set the underlying dir_hdn offset to -1 also as
583 this function is usually called with the output from TellDir. */
584 dptr->dir_hnd->offset = *poffset = -1;
587 return dptr_normal_ReadDirName(dptr, poffset, pst);
591 /****************************************************************************
592 Search for a file by name, skipping veto'ed and not visible files.
593 ****************************************************************************/
595 BOOL dptr_SearchDir(struct dptr_struct *dptr, const char *name, long *poffset, SMB_STRUCT_STAT *pst)
599 if (!dptr->has_wild && (dptr->dir_hnd->offset == -1)) {
600 /* This is a singleton directory and we're already at the end. */
605 while (SearchDir(dptr->dir_hnd, name, poffset) == True) {
606 if (is_visible_file(dptr->conn, dptr->path, name, pst, True)) {
613 /****************************************************************************
614 Fill the 5 byte server reserved dptr field.
615 ****************************************************************************/
617 BOOL dptr_fill(char *buf1,unsigned int key)
619 unsigned char *buf = (unsigned char *)buf1;
620 struct dptr_struct *dptr = dptr_get(key, False);
623 DEBUG(1,("filling null dirptr %d\n",key));
626 offset = TellDir(dptr->dir_hnd);
627 DEBUG(6,("fill on key %u dirptr 0x%lx now at %d\n",key,
628 (long)dptr->dir_hnd,(int)offset));
630 SIVAL(buf,1,offset | DPTR_MASK);
634 /****************************************************************************
635 Fetch the dir ptr and seek it given the 5 byte server field.
636 ****************************************************************************/
638 struct dptr_struct *dptr_fetch(char *buf,int *num)
640 unsigned int key = *(unsigned char *)buf;
641 struct dptr_struct *dptr = dptr_get(key, False);
645 DEBUG(3,("fetched null dirptr %d\n",key));
649 offset = IVAL(buf,1)&~DPTR_MASK;
650 SeekDir(dptr->dir_hnd,(long)offset);
651 DEBUG(3,("fetching dirptr %d for path %s at offset %d\n",
652 key,dptr_path(key),offset));
656 /****************************************************************************
658 ****************************************************************************/
660 struct dptr_struct *dptr_fetch_lanman2(int dptr_num)
662 struct dptr_struct *dptr = dptr_get(dptr_num, False);
665 DEBUG(3,("fetched null dirptr %d\n",dptr_num));
668 DEBUG(3,("fetching dirptr %d for path %s\n",dptr_num,dptr_path(dptr_num)));
672 /****************************************************************************
673 Check a filetype for being valid.
674 ****************************************************************************/
676 BOOL dir_check_ftype(connection_struct *conn,int mode,int dirtype)
680 /* Check the "may have" search bits. */
681 if (((mode & ~dirtype) & (aHIDDEN | aSYSTEM | aDIR)) != 0)
684 /* Check the "must have" bits, which are the may have bits shifted eight */
685 /* If must have bit is set, the file/dir can not be returned in search unless the matching
686 file attribute is set */
687 mask = ((dirtype >> 8) & (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM)); /* & 0x37 */
689 if((mask & (mode & (aDIR|aARCH|aRONLY|aHIDDEN|aSYSTEM))) == mask) /* check if matching attribute present */
698 static BOOL mangle_mask_match(connection_struct *conn, fstring filename, char *mask)
700 mangle_map(filename,True,False,SNUM(conn));
701 return mask_match_search(filename,mask,False);
704 /****************************************************************************
705 Get an 8.3 directory entry.
706 ****************************************************************************/
708 BOOL get_dir_entry(connection_struct *conn,char *mask,int dirtype, pstring fname,
709 SMB_OFF_T *size,int *mode,time_t *date,BOOL check_descend)
713 SMB_STRUCT_STAT sbuf;
719 *path = *pathreal = *filename = 0;
721 needslash = ( conn->dirpath[strlen(conn->dirpath) -1] != '/');
727 long curoff = dptr_TellDir(conn->dirptr);
728 dname = dptr_ReadDirName(conn->dirptr, &curoff, &sbuf);
730 DEBUG(6,("readdir on dirptr 0x%lx now at offset %ld\n",
731 (long)conn->dirptr,TellDir(conn->dirptr->dir_hnd)));
736 pstrcpy(filename,dname);
738 /* notice the special *.* handling. This appears to be the only difference
739 between the wildcard handling in this routine and in the trans2 routines.
740 see masktest for a demo
742 if ((strcmp(mask,"*.*") == 0) ||
743 mask_match_search(filename,mask,False) ||
744 mangle_mask_match(conn,filename,mask)) {
746 if (!mangle_is_8_3(filename, False))
747 mangle_map(filename,True,False,SNUM(conn));
749 pstrcpy(fname,filename);
751 pstrcpy(path,conn->dirpath);
754 pstrcpy(pathreal,path);
756 pstrcat(pathreal,dname);
757 if (!VALID_STAT(sbuf) && (SMB_VFS_STAT(conn, pathreal, &sbuf)) != 0) {
758 DEBUG(5,("Couldn't stat 1 [%s]. Error = %s\n",path, strerror(errno) ));
762 *mode = dos_mode(conn,pathreal,&sbuf);
764 if (!dir_check_ftype(conn,*mode,dirtype)) {
765 DEBUG(5,("[%s] attribs didn't match %x\n",filename,dirtype));
769 *size = sbuf.st_size;
770 *date = sbuf.st_mtime;
772 DEBUG(3,("get_dir_entry mask=[%s] found %s fname=%s\n",mask, pathreal,fname));
781 /*******************************************************************
782 Check to see if a user can read a file. This is only approximate,
783 it is used as part of the "hide unreadable" option. Don't
784 use it for anything security sensitive.
785 ********************************************************************/
787 static BOOL user_can_read_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
789 extern struct current_user current_user;
790 SEC_DESC *psd = NULL;
795 uint32 access_granted;
798 * If user is a member of the Admin group
799 * we never hide files from them.
802 if (conn->admin_user)
805 /* If we can't stat it does not show it */
806 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
809 /* Pseudo-open the file (note - no fd's created). */
811 if(S_ISDIR(pst->st_mode))
812 fsp = open_directory(conn, name, pst, 0, SET_DENY_MODE(DENY_NONE), (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN),
815 fsp = open_file_stat(conn, name, pst);
820 /* Get NT ACL -allocated in main loop talloc context. No free needed here. */
821 sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
822 (OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
823 close_file(fsp, True);
825 /* No access if SD get failed. */
829 return se_access_check(psd, current_user.nt_user_token, FILE_READ_DATA,
830 &access_granted, &status);
833 /*******************************************************************
834 Check to see if a user can write a file (and only files, we do not
835 check dirs on this one). This is only approximate,
836 it is used as part of the "hide unwriteable" option. Don't
837 use it for anything security sensitive.
838 ********************************************************************/
840 static BOOL user_can_write_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
842 extern struct current_user current_user;
843 SEC_DESC *psd = NULL;
849 uint32 access_granted;
852 * If user is a member of the Admin group
853 * we never hide files from them.
856 if (conn->admin_user)
859 /* If we can't stat it does not show it */
860 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
863 /* Pseudo-open the file (note - no fd's created). */
865 if(S_ISDIR(pst->st_mode))
868 fsp = open_file_shared1(conn, name, pst, FILE_WRITE_ATTRIBUTES, SET_DENY_MODE(DENY_NONE),
869 (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN), FILE_ATTRIBUTE_NORMAL, INTERNAL_OPEN_ONLY,
870 &access_mode, &smb_action);
875 /* Get NT ACL -allocated in main loop talloc context. No free needed here. */
876 sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
877 (OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
878 close_file(fsp, False);
880 /* No access if SD get failed. */
884 return se_access_check(psd, current_user.nt_user_token, FILE_WRITE_DATA,
885 &access_granted, &status);
888 /*******************************************************************
889 Is a file a "special" type ?
890 ********************************************************************/
892 static BOOL file_is_special(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
895 * If user is a member of the Admin group
896 * we never hide files from them.
899 if (conn->admin_user)
902 /* If we can't stat it does not show it */
903 if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
906 if (S_ISREG(pst->st_mode) || S_ISDIR(pst->st_mode) || S_ISLNK(pst->st_mode))
912 /*******************************************************************
913 Should the file be seen by the client ?
914 ********************************************************************/
916 BOOL is_visible_file(connection_struct *conn, const char *dir_path, const char *name, SMB_STRUCT_STAT *pst, BOOL use_veto)
918 BOOL hide_unreadable = lp_hideunreadable(SNUM(conn));
919 BOOL hide_unwriteable = lp_hideunwriteable_files(SNUM(conn));
920 BOOL hide_special = lp_hide_special_files(SNUM(conn));
924 if ((strcmp(".",name) == 0) || (strcmp("..",name) == 0)) {
925 return True; /* . and .. are always visible. */
928 /* If it's a vetoed file, pretend it doesn't even exist */
929 if (use_veto && IS_VETO_PATH(conn, name)) {
933 if (hide_unreadable || hide_unwriteable || hide_special) {
936 if (asprintf(&entry, "%s/%s", dir_path, name) == -1) {
939 /* Honour _hide unreadable_ option */
940 if (hide_unreadable && !user_can_read_file(conn, entry, pst)) {
944 /* Honour _hide unwriteable_ option */
945 if (hide_unwriteable && !user_can_write_file(conn, entry, pst)) {
949 /* Honour _hide_special_ option */
950 if (hide_special && !file_is_special(conn, entry, pst)) {
959 /*******************************************************************
961 ********************************************************************/
963 struct smb_Dir *OpenDir(connection_struct *conn, const char *name)
965 struct smb_Dir *dirp = SMB_MALLOC_P(struct smb_Dir);
973 dirp->dir_path = SMB_STRDUP(name);
974 if (!dirp->dir_path) {
977 dirp->dir = SMB_VFS_OPENDIR(conn, dirp->dir_path);
979 DEBUG(5,("OpenDir: Can't open %s. %s\n", dirp->dir_path, strerror(errno) ));
983 dirp->name_cache = SMB_CALLOC_ARRAY(struct name_cache_entry, NAME_CACHE_SIZE);
984 if (!dirp->name_cache) {
995 SMB_VFS_CLOSEDIR(conn,dirp->dir);
997 SAFE_FREE(dirp->dir_path);
998 SAFE_FREE(dirp->name_cache);
1005 /*******************************************************************
1007 ********************************************************************/
1009 int CloseDir(struct smb_Dir *dirp)
1014 ret = SMB_VFS_CLOSEDIR(dirp->conn,dirp->dir);
1016 SAFE_FREE(dirp->dir_path);
1017 if (dirp->name_cache) {
1018 for (i = 0; i < NAME_CACHE_SIZE; i++) {
1019 SAFE_FREE(dirp->name_cache[i].name);
1022 SAFE_FREE(dirp->name_cache);
1028 /*******************************************************************
1029 Read from a directory. Also return current offset.
1030 Don't check for veto or invisible files.
1031 ********************************************************************/
1033 const char *ReadDirName(struct smb_Dir *dirp, long *poffset)
1036 connection_struct *conn = dirp->conn;
1038 SeekDir(dirp, *poffset);
1039 while ((n = vfs_readdirname(conn, dirp->dir))) {
1040 struct name_cache_entry *e;
1041 dirp->offset = SMB_VFS_TELLDIR(conn, dirp->dir);
1042 if (dirp->offset == -1) {
1045 dirp->name_cache_index = (dirp->name_cache_index+1) % NAME_CACHE_SIZE;
1047 e = &dirp->name_cache[dirp->name_cache_index];
1049 e->name = SMB_STRDUP(n);
1050 *poffset = e->offset= dirp->offset;
1057 /*******************************************************************
1059 ********************************************************************/
1061 void SeekDir(struct smb_Dir *dirp, long offset)
1063 if (offset != dirp->offset) {
1064 SMB_VFS_SEEKDIR(dirp->conn, dirp->dir, offset);
1065 dirp->offset = offset;
1069 /*******************************************************************
1070 Tell a dir position.
1071 ********************************************************************/
1073 long TellDir(struct smb_Dir *dirp)
1075 return(dirp->offset);
1078 /*******************************************************************
1079 Find an entry by name. Leave us at the offset after it.
1080 Don't check for veto or invisible files.
1081 ********************************************************************/
1083 BOOL SearchDir(struct smb_Dir *dirp, const char *name, long *poffset)
1087 connection_struct *conn = dirp->conn;
1089 /* Search back in the name cache. */
1090 for (i = dirp->name_cache_index; i >= 0; i--) {
1091 struct name_cache_entry *e = &dirp->name_cache[i];
1092 if (e->name && (conn->case_sensitive ? (strcmp(e->name, name) == 0) : strequal(e->name, name))) {
1093 *poffset = e->offset;
1094 SeekDir(dirp, e->offset);
1098 for (i = NAME_CACHE_SIZE-1; i > dirp->name_cache_index; i--) {
1099 struct name_cache_entry *e = &dirp->name_cache[i];
1100 if (e->name && (conn->case_sensitive ? (strcmp(e->name, name) == 0) : strequal(e->name, name))) {
1101 *poffset = e->offset;
1102 SeekDir(dirp, e->offset);
1107 /* Not found in the name cache. Rewind directory and start from scratch. */
1108 SMB_VFS_REWINDDIR(conn, dirp->dir);
1110 while ((entry = ReadDirName(dirp, poffset))) {
1111 if (conn->case_sensitive ? (strcmp(entry, name) == 0) : strequal(entry, name)) {