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/*
Unix SMB/CIFS implementation.
POSIX NTVFS backend - unlink
Copyright (C) Andrew Tridgell 2004
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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "include/includes.h"
#include "vfs_posix.h"
/*
unlink one file
*/
static NTSTATUS pvfs_unlink_one(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx,
const char *unix_path,
const char *fname, uint32_t attrib)
{
struct pvfs_filename *name;
NTSTATUS status;
/* get a pvfs_filename object */
status = pvfs_resolve_partial(pvfs, mem_ctx,
unix_path, fname, &name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/* make sure its matches the given attributes */
status = pvfs_match_attrib(pvfs, name, attrib, 0);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(name);
return status;
}
status = pvfs_can_delete(pvfs, name);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(name);
return status;
}
if (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
talloc_free(name);
return NT_STATUS_FILE_IS_A_DIRECTORY;
}
/* finally try the actual unlink */
if (unlink(name->full_name) == -1) {
status = pvfs_map_errno(pvfs, errno);
}
talloc_free(name);
return status;
}
/*
delete a file - the dirtype specifies the file types to include in the search.
The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
*/
NTSTATUS pvfs_unlink(struct ntvfs_module_context *ntvfs,
struct smbsrv_request *req, struct smb_unlink *unl)
{
struct pvfs_state *pvfs = ntvfs->private_data;
struct pvfs_dir *dir;
NTSTATUS status;
uint32_t i, total_deleted=0;
struct pvfs_filename *name;
/* resolve the cifs name to a posix name */
status = pvfs_resolve_name(pvfs, req, unl->in.pattern, 0, &name);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!name->exists && !name->has_wildcard) {
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
if (name->exists &&
(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
return NT_STATUS_FILE_IS_A_DIRECTORY;
}
dir = talloc_p(req, struct pvfs_dir);
if (dir == NULL) {
return NT_STATUS_NO_MEMORY;
}
/* get list of matching files */
status = pvfs_list(pvfs, name, dir);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (dir->count == 0) {
return NT_STATUS_NO_SUCH_FILE;
}
for (i=0;i<dir->count;i++) {
/* this seems to be a special case */
if ((unl->in.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
(strcmp(dir->names[i], ".") == 0 ||
strcmp(dir->names[i], "..") == 0)) {
return NT_STATUS_OBJECT_NAME_INVALID;
}
status = pvfs_unlink_one(pvfs, req, dir->unix_path,
dir->names[i], unl->in.attrib);
if (NT_STATUS_IS_OK(status)) {
total_deleted++;
}
}
if (total_deleted == 0) {
return status;
}
return NT_STATUS_OK;
}
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