This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
This module implements directory related functions for Samba.
*/
+extern struct current_user current_user;
+
+/* "Special" directory offsets. */
+#define END_OF_DIRECTORY_OFFSET ((long)-1)
+#define START_OF_DIRECTORY_OFFSET ((long)0)
+#define DOT_DOT_DIRECTORY_OFFSET ((long)0x80000000)
+
/* Make directory handle internals available. */
#define NAME_CACHE_SIZE 100
struct smb_Dir {
connection_struct *conn;
- DIR *dir;
+ SMB_STRUCT_DIR *dir;
long offset;
char *dir_path;
struct name_cache_entry *name_cache;
unsigned int name_cache_index;
+ unsigned int file_number;
};
struct dptr_struct {
struct smb_Dir *dir_hnd;
BOOL expect_close;
char *wcard;
- uint16 attr;
+ uint32 attr;
char *path;
BOOL has_wild; /* Set to true if the wcard entry has MS wildcard characters in it. */
+ BOOL did_stat; /* Optimisation for non-wcard searches. */
};
static struct bitmap *dptr_bmap;
#define INVALID_DPTR_KEY (-3)
+/****************************************************************************
+ Make a dir struct.
+****************************************************************************/
+
+void make_dir_struct(char *buf, const char *mask, const char *fname,SMB_OFF_T size,uint32 mode,time_t date, BOOL uc)
+{
+ char *p;
+ pstring mask2;
+
+ pstrcpy(mask2,mask);
+
+ if ((mode & aDIR) != 0)
+ size = 0;
+
+ memset(buf+1,' ',11);
+ if ((p = strchr_m(mask2,'.')) != NULL) {
+ *p = 0;
+ push_ascii(buf+1,mask2,8, 0);
+ push_ascii(buf+9,p+1,3, 0);
+ *p = '.';
+ } else
+ push_ascii(buf+1,mask2,11, 0);
+
+ memset(buf+21,'\0',DIR_STRUCT_SIZE-21);
+ SCVAL(buf,21,mode);
+ srv_put_dos_date(buf,22,date);
+ SSVAL(buf,26,size & 0xFFFF);
+ SSVAL(buf,28,(size >> 16)&0xFFFF);
+ /* We only uppercase if FLAGS2_LONG_PATH_COMPONENTS is zero in the input buf.
+ Strange, but verified on W2K3. Needed for OS/2. JRA. */
+ push_ascii(buf+30,fname,12, uc ? STR_UPPER : 0);
+ DEBUG(8,("put name [%s] from [%s] into dir struct\n",buf+30, fname));
+}
+
/****************************************************************************
Initialise the dir bitmap.
****************************************************************************/
if (dirhandles_open >= MAX_OPEN_DIRECTORIES)
dptr_idleoldest();
DEBUG(4,("dptr_get: Reopening dptr key %d\n",key));
- if (!(dptr->dir_hnd = OpenDir(dptr->conn, dptr->path))) {
+ if (!(dptr->dir_hnd = OpenDir(dptr->conn, dptr->path, dptr->wcard, dptr->attr))) {
DEBUG(4,("dptr_get: Failed to open %s (%s)\n",dptr->path,
strerror(errno)));
return False;
return(0);
}
-/****************************************************************************
- Set the dir wcard for a dir index.
- Returns 0 on ok, 1 on fail.
-****************************************************************************/
-
-BOOL dptr_set_wcard_and_attributes(int key, const char *wcard, uint16 attr)
-{
- struct dptr_struct *dptr = dptr_get(key, False);
-
- if (dptr) {
- dptr->attr = attr;
- dptr->wcard = SMB_STRDUP(wcard);
- if (!dptr->wcard)
- return False;
- if (wcard[0] == '.' && wcard[1] == 0) {
- dptr->has_wild = True;
- } else {
- dptr->has_wild = ms_has_wild(wcard);
- }
- return True;
- }
- return False;
-}
-
/****************************************************************************
Close a dptr (internal func).
****************************************************************************/
one byte long. If old_handle is false we allocate from the range
256 - MAX_DIRECTORY_HANDLES. We bias the number we return by 1 to ensure
a directory handle is never zero.
+ wcard must not be zero.
****************************************************************************/
-int dptr_create(connection_struct *conn, pstring path, BOOL old_handle, BOOL expect_close,uint16 spid)
+NTSTATUS dptr_create(connection_struct *conn, pstring path, BOOL old_handle, BOOL expect_close,uint16 spid,
+ const char *wcard, BOOL wcard_has_wild, uint32 attr, struct dptr_struct **dptr_ret)
{
struct dptr_struct *dptr = NULL;
struct smb_Dir *dir_hnd;
const char *dir2;
+ NTSTATUS status;
DEBUG(5,("dptr_create dir=%s\n", path));
- if (!check_name(path,conn))
- return(-2); /* Code to say use a unix error return code. */
+ if (!wcard) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ status = check_name(conn,path);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
/* use a const pointer from here on */
dir2 = path;
if (!*dir2)
dir2 = ".";
- dir_hnd = OpenDir(conn, dir2);
+ dir_hnd = OpenDir(conn, dir2, wcard, attr);
if (!dir_hnd) {
- return (-2);
+ return map_nt_error_from_unix(errno);
}
string_set(&conn->dirpath,dir2);
- if (dirhandles_open >= MAX_OPEN_DIRECTORIES)
+ if (dirhandles_open >= MAX_OPEN_DIRECTORIES) {
dptr_idleoldest();
+ }
dptr = SMB_MALLOC_P(struct dptr_struct);
if(!dptr) {
DEBUG(0,("malloc fail in dptr_create.\n"));
CloseDir(dir_hnd);
- return -1;
+ return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCTP(dptr);
DEBUG(0,("dptr_create: returned %d: Error - all old dirptrs in use ?\n", dptr->dnum));
SAFE_FREE(dptr);
CloseDir(dir_hnd);
- return -1;
+ return NT_STATUS_TOO_MANY_OPENED_FILES;
}
}
} else {
DEBUG(0,("dptr_create: returned %d: Error - all new dirptrs in use ?\n", dptr->dnum));
SAFE_FREE(dptr);
CloseDir(dir_hnd);
- return -1;
+ return NT_STATUS_TOO_MANY_OPENED_FILES;
}
}
}
dptr->dir_hnd = dir_hnd;
dptr->spid = spid;
dptr->expect_close = expect_close;
- dptr->wcard = NULL; /* Only used in lanman2 searches */
- dptr->attr = 0; /* Only used in lanman2 searches */
- dptr->has_wild = True; /* Only used in lanman2 searches */
+ dptr->wcard = SMB_STRDUP(wcard);
+ if (!dptr->wcard) {
+ bitmap_clear(dptr_bmap, dptr->dnum - 1);
+ SAFE_FREE(dptr);
+ CloseDir(dir_hnd);
+ return NT_STATUS_NO_MEMORY;
+ }
+ if (lp_posix_pathnames() || (wcard[0] == '.' && wcard[1] == 0)) {
+ dptr->has_wild = True;
+ } else {
+ dptr->has_wild = wcard_has_wild;
+ }
+
+ dptr->attr = attr;
DLIST_ADD(dirptrs, dptr);
DEBUG(3,("creating new dirptr %d for path %s, expect_close = %d\n",
dptr->dnum,path,expect_close));
- conn->dirptr = dptr;
+ *dptr_ret = dptr;
- return(dptr->dnum);
+ return NT_STATUS_OK;
}
int dptr_CloseDir(struct dptr_struct *dptr)
{
+ DLIST_REMOVE(dirptrs, dptr);
return CloseDir(dptr->dir_hnd);
}
return TellDir(dptr->dir_hnd);
}
+BOOL dptr_has_wild(struct dptr_struct *dptr)
+{
+ return dptr->has_wild;
+}
+
+int dptr_dnum(struct dptr_struct *dptr)
+{
+ return dptr->dnum;
+}
+
/****************************************************************************
Return the next visible file name, skipping veto'd and invisible files.
****************************************************************************/
const char *dptr_ReadDirName(struct dptr_struct *dptr, long *poffset, SMB_STRUCT_STAT *pst)
{
- pstring pathreal;
-
- ZERO_STRUCTP(pst);
+ SET_STAT_INVALID(*pst);
if (dptr->has_wild) {
return dptr_normal_ReadDirName(dptr, poffset, pst);
/* If poffset is -1 then we know we returned this name before and we have
no wildcards. We're at the end of the directory. */
- if (*poffset == -1) {
+ if (*poffset == END_OF_DIRECTORY_OFFSET) {
return NULL;
}
- /* We know the stored wcard contains no wildcard characters. See if we can match
- with a stat call. If we can't, then set has_wild to true to
- prevent us from doing this on every call. */
+ if (!dptr->did_stat) {
+ pstring pathreal;
- /* First check if it should be visible. */
- if (!is_visible_file(dptr->conn, dptr->path, dptr->wcard, pst, True)) {
- dptr->has_wild = True;
- return dptr_normal_ReadDirName(dptr, poffset, pst);
- }
+ /* We know the stored wcard contains no wildcard characters. See if we can match
+ with a stat call. If we can't, then set did_stat to true to
+ ensure we only do this once and keep searching. */
- if (VALID_STAT(*pst)) {
- /* We need to set the underlying dir_hdn offset to -1 also as
- this function is usually called with the output from TellDir. */
- dptr->dir_hnd->offset = *poffset = -1;
- return dptr->wcard;
- }
+ dptr->did_stat = True;
- pstrcpy(pathreal,dptr->path);
- pstrcat(pathreal,"/");
- pstrcat(pathreal,dptr->wcard);
+ /* First check if it should be visible. */
+ if (!is_visible_file(dptr->conn, dptr->path, dptr->wcard, pst, True)) {
+ /* This only returns False if the file was found, but
+ is explicitly not visible. Set us to end of directory,
+ but return NULL as we know we can't ever find it. */
+ dptr->dir_hnd->offset = *poffset = END_OF_DIRECTORY_OFFSET;
+ return NULL;
+ }
- if (SMB_VFS_STAT(dptr->conn,pathreal,pst) == 0) {
- /* We need to set the underlying dir_hdn offset to -1 also as
- this function is usually called with the output from TellDir. */
- dptr->dir_hnd->offset = *poffset = -1;
- return dptr->wcard;
- } else {
- /* If we get any other error than ENOENT or ENOTDIR
- then the file exists we just can't stat it. */
- if (errno != ENOENT && errno != ENOTDIR) {
- /* We need to set the underlying dir_hdn offset to -1 also as
+ if (VALID_STAT(*pst)) {
+ /* We need to set the underlying dir_hnd offset to -1 also as
this function is usually called with the output from TellDir. */
- dptr->dir_hnd->offset = *poffset = -1;
+ dptr->dir_hnd->offset = *poffset = END_OF_DIRECTORY_OFFSET;
return dptr->wcard;
}
- }
- dptr->has_wild = True;
+ pstrcpy(pathreal,dptr->path);
+ pstrcat(pathreal,"/");
+ pstrcat(pathreal,dptr->wcard);
+
+ if (SMB_VFS_STAT(dptr->conn,pathreal,pst) == 0) {
+ /* We need to set the underlying dir_hnd offset to -1 also as
+ this function is usually called with the output from TellDir. */
+ dptr->dir_hnd->offset = *poffset = END_OF_DIRECTORY_OFFSET;
+ return dptr->wcard;
+ } else {
+ /* If we get any other error than ENOENT or ENOTDIR
+ then the file exists we just can't stat it. */
+ if (errno != ENOENT && errno != ENOTDIR) {
+ /* We need to set the underlying dir_hdn offset to -1 also as
+ this function is usually called with the output from TellDir. */
+ dptr->dir_hnd->offset = *poffset = END_OF_DIRECTORY_OFFSET;
+ return dptr->wcard;
+ }
+ }
- /* In case sensitive mode we don't search - we know if it doesn't exist
- with a stat we will fail. */
+ /* In case sensitive mode we don't search - we know if it doesn't exist
+ with a stat we will fail. */
- if (dptr->conn->case_sensitive) {
- /* We need to set the underlying dir_hdn offset to -1 also as
- this function is usually called with the output from TellDir. */
- dptr->dir_hnd->offset = *poffset = -1;
- return NULL;
- } else {
- return dptr_normal_ReadDirName(dptr, poffset, pst);
+ if (dptr->conn->case_sensitive) {
+ /* We need to set the underlying dir_hnd offset to -1 also as
+ this function is usually called with the output from TellDir. */
+ dptr->dir_hnd->offset = *poffset = END_OF_DIRECTORY_OFFSET;
+ return NULL;
+ }
}
+ return dptr_normal_ReadDirName(dptr, poffset, pst);
}
/****************************************************************************
BOOL dptr_SearchDir(struct dptr_struct *dptr, const char *name, long *poffset, SMB_STRUCT_STAT *pst)
{
- ZERO_STRUCTP(pst);
+ SET_STAT_INVALID(*pst);
- if (!dptr->has_wild && (dptr->dir_hnd->offset == -1)) {
+ if (!dptr->has_wild && (dptr->dir_hnd->offset == END_OF_DIRECTORY_OFFSET)) {
/* This is a singleton directory and we're already at the end. */
- *poffset = -1;
+ *poffset = END_OF_DIRECTORY_OFFSET;
return False;
}
- while (SearchDir(dptr->dir_hnd, name, poffset) == True) {
- if (is_visible_file(dptr->conn, dptr->path, name, pst, True)) {
- return True;
- }
- }
- return False;
+ return SearchDir(dptr->dir_hnd, name, poffset);
+}
+
+/****************************************************************************
+ Add the name we're returning into the underlying cache.
+****************************************************************************/
+
+void dptr_DirCacheAdd(struct dptr_struct *dptr, const char *name, long offset)
+{
+ DirCacheAdd(dptr->dir_hnd, name, offset);
}
/****************************************************************************
DEBUG(1,("filling null dirptr %d\n",key));
return(False);
}
- offset = TellDir(dptr->dir_hnd);
+ offset = (uint32)TellDir(dptr->dir_hnd);
DEBUG(6,("fill on key %u dirptr 0x%lx now at %d\n",key,
(long)dptr->dir_hnd,(int)offset));
buf[0] = key;
- SIVAL(buf,1,offset | DPTR_MASK);
+ SIVAL(buf,1,offset);
return(True);
}
unsigned int key = *(unsigned char *)buf;
struct dptr_struct *dptr = dptr_get(key, False);
uint32 offset;
+ long seekoff;
if (!dptr) {
DEBUG(3,("fetched null dirptr %d\n",key));
return(NULL);
}
*num = key;
- offset = IVAL(buf,1)&~DPTR_MASK;
- SeekDir(dptr->dir_hnd,(long)offset);
+ offset = IVAL(buf,1);
+ if (offset == (uint32)-1) {
+ seekoff = END_OF_DIRECTORY_OFFSET;
+ } else {
+ seekoff = (long)offset;
+ }
+ SeekDir(dptr->dir_hnd,seekoff);
DEBUG(3,("fetching dirptr %d for path %s at offset %d\n",
- key,dptr_path(key),offset));
+ key,dptr_path(key),(int)seekoff));
return(dptr);
}
}
/****************************************************************************
- Check a filetype for being valid.
+ Check that a file matches a particular file type.
****************************************************************************/
-BOOL dir_check_ftype(connection_struct *conn,int mode,int dirtype)
+BOOL dir_check_ftype(connection_struct *conn, uint32 mode, uint32 dirtype)
{
- int mask;
+ uint32 mask;
/* Check the "may have" search bits. */
if (((mode & ~dirtype) & (aHIDDEN | aSYSTEM | aDIR)) != 0)
static BOOL mangle_mask_match(connection_struct *conn, fstring filename, char *mask)
{
- mangle_map(filename,True,False,SNUM(conn));
+ mangle_map(filename,True,False,conn->params);
return mask_match_search(filename,mask,False);
}
Get an 8.3 directory entry.
****************************************************************************/
-BOOL get_dir_entry(connection_struct *conn,char *mask,int dirtype, pstring fname,
- SMB_OFF_T *size,int *mode,time_t *date,BOOL check_descend)
+BOOL get_dir_entry(connection_struct *conn,char *mask,uint32 dirtype, pstring fname,
+ SMB_OFF_T *size,uint32 *mode,time_t *date,BOOL check_descend)
{
const char *dname;
BOOL found = False;
mask_match_search(filename,mask,False) ||
mangle_mask_match(conn,filename,mask)) {
- if (!mangle_is_8_3(filename, False))
- mangle_map(filename,True,False,SNUM(conn));
+ if (!mangle_is_8_3(filename, False, conn->params))
+ mangle_map(filename,True,False,
+ conn->params);
pstrcpy(fname,filename);
*path = 0;
*mode = dos_mode(conn,pathreal,&sbuf);
if (!dir_check_ftype(conn,*mode,dirtype)) {
- DEBUG(5,("[%s] attribs didn't match %x\n",filename,dirtype));
+ DEBUG(5,("[%s] attribs 0x%x didn't match 0x%x\n",filename,(unsigned int)*mode,(unsigned int)dirtype));
continue;
}
DEBUG(3,("get_dir_entry mask=[%s] found %s fname=%s\n",mask, pathreal,fname));
found = True;
+
+ DirCacheAdd(conn->dirptr->dir_hnd, dname, curoff);
}
}
static BOOL user_can_read_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
{
- extern struct current_user current_user;
SEC_DESC *psd = NULL;
size_t sd_size;
files_struct *fsp;
- int smb_action;
NTSTATUS status;
uint32 access_granted;
* we never hide files from them.
*/
- if (conn->admin_user)
+ if (conn->admin_user) {
return True;
+ }
/* If we can't stat it does not show it */
- if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
+ if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0)) {
+ DEBUG(10,("user_can_read_file: SMB_VFS_STAT failed for file %s with error %s\n",
+ name, strerror(errno) ));
return False;
+ }
/* Pseudo-open the file (note - no fd's created). */
- if(S_ISDIR(pst->st_mode))
- fsp = open_directory(conn, name, pst, 0, SET_DENY_MODE(DENY_NONE), (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN),
- &smb_action);
- else
- fsp = open_file_stat(conn, name, pst);
+ if(S_ISDIR(pst->st_mode)) {
+ status = open_directory(conn, NULL, name, pst,
+ READ_CONTROL_ACCESS,
+ FILE_SHARE_READ|FILE_SHARE_WRITE,
+ FILE_OPEN,
+ 0, /* no create options. */
+ FILE_ATTRIBUTE_DIRECTORY,
+ NULL, &fsp);
+ } else {
+ status = open_file_stat(conn, NULL, name, pst, &fsp);
+ }
- if (!fsp)
+ if (!NT_STATUS_IS_OK(status)) {
return False;
+ }
/* Get NT ACL -allocated in main loop talloc context. No free needed here. */
- sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
+ sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd,
(OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
- close_file(fsp, True);
+ close_file(fsp, NORMAL_CLOSE);
/* No access if SD get failed. */
- if (!sd_size)
+ if (!sd_size) {
return False;
+ }
return se_access_check(psd, current_user.nt_user_token, FILE_READ_DATA,
&access_granted, &status);
static BOOL user_can_write_file(connection_struct *conn, char *name, SMB_STRUCT_STAT *pst)
{
- extern struct current_user current_user;
SEC_DESC *psd = NULL;
size_t sd_size;
files_struct *fsp;
- int smb_action;
- int access_mode;
+ int info;
NTSTATUS status;
uint32 access_granted;
* we never hide files from them.
*/
- if (conn->admin_user)
+ if (conn->admin_user) {
return True;
+ }
/* If we can't stat it does not show it */
- if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0))
+ if (!VALID_STAT(*pst) && (SMB_VFS_STAT(conn, name, pst) != 0)) {
return False;
+ }
- /* Pseudo-open the file (note - no fd's created). */
+ /* Pseudo-open the file */
- if(S_ISDIR(pst->st_mode))
+ if(S_ISDIR(pst->st_mode)) {
return True;
- else
- fsp = open_file_shared1(conn, name, pst, FILE_WRITE_ATTRIBUTES, SET_DENY_MODE(DENY_NONE),
- (FILE_FAIL_IF_NOT_EXIST|FILE_EXISTS_OPEN), FILE_ATTRIBUTE_NORMAL, INTERNAL_OPEN_ONLY,
- &access_mode, &smb_action);
+ } else {
+ status = open_file_ntcreate(conn, NULL, name, pst,
+ FILE_WRITE_ATTRIBUTES,
+ FILE_SHARE_READ|FILE_SHARE_WRITE,
+ FILE_OPEN,
+ 0,
+ FILE_ATTRIBUTE_NORMAL,
+ INTERNAL_OPEN_ONLY,
+ &info, &fsp);
+ }
- if (!fsp)
+ if (!NT_STATUS_IS_OK(status)) {
return False;
+ }
/* Get NT ACL -allocated in main loop talloc context. No free needed here. */
- sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fd,
+ sd_size = SMB_VFS_FGET_NT_ACL(fsp, fsp->fh->fd,
(OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|DACL_SECURITY_INFORMATION), &psd);
- close_file(fsp, False);
+ close_file(fsp, NORMAL_CLOSE);
/* No access if SD get failed. */
if (!sd_size)
BOOL hide_unwriteable = lp_hideunwriteable_files(SNUM(conn));
BOOL hide_special = lp_hide_special_files(SNUM(conn));
- ZERO_STRUCTP(pst);
+ SET_STAT_INVALID(*pst);
if ((strcmp(".",name) == 0) || (strcmp("..",name) == 0)) {
return True; /* . and .. are always visible. */
/* If it's a vetoed file, pretend it doesn't even exist */
if (use_veto && IS_VETO_PATH(conn, name)) {
+ DEBUG(10,("is_visible_file: file %s is vetoed.\n", name ));
return False;
}
if (hide_unreadable || hide_unwriteable || hide_special) {
+ pstring link_target;
char *entry = NULL;
if (asprintf(&entry, "%s/%s", dir_path, name) == -1) {
return False;
}
+
+ /* If it's a dfs symlink, ignore _hide xxxx_ options */
+ if (lp_host_msdfs() &&
+ lp_msdfs_root(SNUM(conn)) &&
+ is_msdfs_link(conn, entry, link_target, NULL)) {
+ SAFE_FREE(entry);
+ return True;
+ }
+
/* Honour _hide unreadable_ option */
if (hide_unreadable && !user_can_read_file(conn, entry, pst)) {
+ DEBUG(10,("is_visible_file: file %s is unreadable.\n", entry ));
SAFE_FREE(entry);
return False;
}
/* Honour _hide unwriteable_ option */
if (hide_unwriteable && !user_can_write_file(conn, entry, pst)) {
+ DEBUG(10,("is_visible_file: file %s is unwritable.\n", entry ));
SAFE_FREE(entry);
return False;
}
/* Honour _hide_special_ option */
- if (hide_special && !file_is_special(conn, entry, pst)) {
+ if (hide_special && file_is_special(conn, entry, pst)) {
+ DEBUG(10,("is_visible_file: file %s is special.\n", entry ));
SAFE_FREE(entry);
return False;
}
Open a directory.
********************************************************************/
-struct smb_Dir *OpenDir(connection_struct *conn, const char *name)
+struct smb_Dir *OpenDir(connection_struct *conn, const char *name, const char *mask, uint32 attr)
{
struct smb_Dir *dirp = SMB_MALLOC_P(struct smb_Dir);
if (!dirp) {
if (!dirp->dir_path) {
goto fail;
}
- dirp->dir = SMB_VFS_OPENDIR(conn, dirp->dir_path);
+ dirp->dir = SMB_VFS_OPENDIR(conn, dirp->dir_path, mask, attr);
if (!dirp->dir) {
DEBUG(5,("OpenDir: Can't open %s. %s\n", dirp->dir_path, strerror(errno) ));
goto fail;
const char *n;
connection_struct *conn = dirp->conn;
- SeekDir(dirp, *poffset);
- while ((n = vfs_readdirname(conn, dirp->dir))) {
- struct name_cache_entry *e;
- dirp->offset = SMB_VFS_TELLDIR(conn, dirp->dir);
- if (dirp->offset == -1) {
- return NULL;
+ /* Cheat to allow . and .. to be the first entries returned. */
+ if (((*poffset == START_OF_DIRECTORY_OFFSET) || (*poffset == DOT_DOT_DIRECTORY_OFFSET)) && (dirp->file_number < 2)) {
+ if (dirp->file_number == 0) {
+ n = ".";
+ *poffset = dirp->offset = START_OF_DIRECTORY_OFFSET;
+ } else {
+ *poffset = dirp->offset = DOT_DOT_DIRECTORY_OFFSET;
+ n = "..";
}
- dirp->name_cache_index = (dirp->name_cache_index+1) % NAME_CACHE_SIZE;
+ dirp->file_number++;
+ return n;
+ } else if (*poffset == END_OF_DIRECTORY_OFFSET) {
+ *poffset = dirp->offset = END_OF_DIRECTORY_OFFSET;
+ return NULL;
+ } else {
+ /* A real offset, seek to it. */
+ SeekDir(dirp, *poffset);
+ }
- e = &dirp->name_cache[dirp->name_cache_index];
- SAFE_FREE(e->name);
- e->name = SMB_STRDUP(n);
- *poffset = e->offset= dirp->offset;
- return e->name;
+ while ((n = vfs_readdirname(conn, dirp->dir))) {
+ /* Ignore . and .. - we've already returned them. */
+ if (*n == '.') {
+ if ((n[1] == '\0') || (n[1] == '.' && n[2] == '\0')) {
+ continue;
+ }
+ }
+ *poffset = dirp->offset = SMB_VFS_TELLDIR(conn, dirp->dir);
+ dirp->file_number++;
+ return n;
}
- dirp->offset = -1;
+ *poffset = dirp->offset = END_OF_DIRECTORY_OFFSET;
return NULL;
}
+/*******************************************************************
+ Rewind to the start.
+********************************************************************/
+
+void RewindDir(struct smb_Dir *dirp, long *poffset)
+{
+ SMB_VFS_REWINDDIR(dirp->conn, dirp->dir);
+ dirp->file_number = 0;
+ dirp->offset = START_OF_DIRECTORY_OFFSET;
+ *poffset = START_OF_DIRECTORY_OFFSET;
+}
+
/*******************************************************************
Seek a dir.
********************************************************************/
void SeekDir(struct smb_Dir *dirp, long offset)
{
if (offset != dirp->offset) {
- SMB_VFS_SEEKDIR(dirp->conn, dirp->dir, offset);
+ if (offset == START_OF_DIRECTORY_OFFSET) {
+ RewindDir(dirp, &offset);
+ /*
+ * Ok we should really set the file number here
+ * to 1 to enable ".." to be returned next. Trouble
+ * is I'm worried about callers using SeekDir(dirp,0)
+ * as equivalent to RewindDir(). So leave this alone
+ * for now.
+ */
+ } else if (offset == DOT_DOT_DIRECTORY_OFFSET) {
+ RewindDir(dirp, &offset);
+ /*
+ * Set the file number to 2 - we want to get the first
+ * real file entry (the one we return after "..")
+ * on the next ReadDir.
+ */
+ dirp->file_number = 2;
+ } else if (offset == END_OF_DIRECTORY_OFFSET) {
+ ; /* Don't seek in this case. */
+ } else {
+ SMB_VFS_SEEKDIR(dirp->conn, dirp->dir, offset);
+ }
dirp->offset = offset;
}
}
return(dirp->offset);
}
+/*******************************************************************
+ Add an entry into the dcache.
+********************************************************************/
+
+void DirCacheAdd(struct smb_Dir *dirp, const char *name, long offset)
+{
+ struct name_cache_entry *e;
+
+ dirp->name_cache_index = (dirp->name_cache_index+1) % NAME_CACHE_SIZE;
+ e = &dirp->name_cache[dirp->name_cache_index];
+ SAFE_FREE(e->name);
+ e->name = SMB_STRDUP(name);
+ e->offset = offset;
+}
+
/*******************************************************************
Find an entry by name. Leave us at the offset after it.
Don't check for veto or invisible files.
/* Not found in the name cache. Rewind directory and start from scratch. */
SMB_VFS_REWINDDIR(conn, dirp->dir);
- *poffset = 0;
+ dirp->file_number = 0;
+ *poffset = START_OF_DIRECTORY_OFFSET;
while ((entry = ReadDirName(dirp, poffset))) {
if (conn->case_sensitive ? (strcmp(entry, name) == 0) : strequal(entry, name)) {
return True;
}
return False;
}
+
+/*****************************************************************
+ Is this directory empty ?
+*****************************************************************/
+
+NTSTATUS can_delete_directory(struct connection_struct *conn,
+ const char *dirname)
+{
+ NTSTATUS status = NT_STATUS_OK;
+ long dirpos = 0;
+ const char *dname;
+ struct smb_Dir *dir_hnd = OpenDir(conn, dirname, NULL, 0);
+
+ if (!dir_hnd) {
+ return map_nt_error_from_unix(errno);
+ }
+
+ while ((dname = ReadDirName(dir_hnd,&dirpos))) {
+ SMB_STRUCT_STAT st;
+
+ /* Quick check for "." and ".." */
+ if (dname[0] == '.') {
+ if (!dname[1] || (dname[1] == '.' && !dname[2])) {
+ continue;
+ }
+ }
+
+ if (!is_visible_file(conn, dirname, dname, &st, True)) {
+ continue;
+ }
+
+ DEBUG(10,("can_delete_directory: got name %s - can't delete\n", dname ));
+ status = NT_STATUS_DIRECTORY_NOT_EMPTY;
+ break;
+ }
+ CloseDir(dir_hnd);
+
+ return status;
+}
git.samba.org / kai / samba.git / blobdiff