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/*
Unix SMB/CIFS implementation. Xattr manipulation bindings.
Copyright (C) Matthieu Patou <mat@matws.net> 2009-2010
Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and
Matthias Dieter Wallnöfer 2009
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <Python.h>
#include "includes.h"
#include "system/filesys.h"
#include "tdb_compat.h"
#include "lib/tdb_wrap/tdb_wrap.h"
#include "librpc/ndr/libndr.h"
#include "lib/util/wrap_xattr.h"
#include "ntvfs/posix/posix_eadb.h"
#include "libcli/util/pyerrors.h"
#include "param/pyparam.h"
#include "source3/lib/dbwrap/dbwrap.h"
#include "source3/lib/dbwrap/dbwrap_open.h"
#include "source3/lib/dbwrap/dbwrap_tdb.h"
#include "source3/lib/xattr_tdb.h"
void initxattr_tdb(void);
static PyObject *py_is_xattr_supported(PyObject *self)
{
return Py_True;
}
static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
{
char *filename, *attribute, *tdbname;
DATA_BLOB blob;
int blobsize;
int ret;
TALLOC_CTX *mem_ctx;
struct db_context *eadb = NULL;
struct file_id id;
struct stat sbuf;
if (!PyArg_ParseTuple(args, "ssss#", &tdbname, &filename, &attribute,
&blob.data, &blobsize))
return NULL;
blob.length = blobsize;
mem_ctx = talloc_new(NULL);
eadb = db_open_tdb(mem_ctx, py_default_loadparm_context(mem_ctx), tdbname, 50000,
TDB_DEFAULT, O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2);
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ret = stat(filename, &sbuf);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ZERO_STRUCT(id);
id.devid = sbuf.st_dev;
id.inode = sbuf.st_ino;
ret = xattr_tdb_setattr(eadb, &id, attribute, blob.data, blob.length, 0);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_TypeError);
talloc_free(mem_ctx);
return NULL;
}
talloc_free(mem_ctx);
Py_RETURN_NONE;
}
static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
{
char *filename, *attribute, *tdbname;
TALLOC_CTX *mem_ctx;
DATA_BLOB blob;
PyObject *ret_obj;
int ret;
ssize_t xattr_size;
struct db_context *eadb = NULL;
struct file_id id;
struct stat sbuf;
if (!PyArg_ParseTuple(args, "sss", &tdbname, &filename, &attribute))
return NULL;
mem_ctx = talloc_new(NULL);
eadb = db_open_tdb(mem_ctx, py_default_loadparm_context(mem_ctx), tdbname, 50000,
TDB_DEFAULT, O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2);
if (eadb == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ret = stat(filename, &sbuf);
if (ret < 0) {
PyErr_SetFromErrno(PyExc_IOError);
talloc_free(mem_ctx);
return NULL;
}
ZERO_STRUCT(id);
id.devid = sbuf.st_dev;
id.inode = sbuf.st_ino;
xattr_size = xattr_tdb_getattr(eadb, mem_ctx, &id, attribute, &blob);
if (xattr_size < 0) {
PyErr_SetFromErrno(PyExc_TypeError);
talloc_free(mem_ctx);
return NULL;
}
ret_obj = PyString_FromStringAndSize((char *)blob.data, xattr_size);
talloc_free(mem_ctx);
return ret_obj;
}
static PyMethodDef py_xattr_methods[] = {
{ "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
"wrap_getxattr(filename,attribute) -> blob\n"
"Retreive given attribute on the given file." },
{ "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS,
"wrap_setxattr(filename,attribute,value)\n"
"Set the given attribute to the given value on the given file." },
{ "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS,
"Return true if xattr are supported on this system\n"},
{ NULL }
};
void initxattr_tdb(void)
{
PyObject *m;
m = Py_InitModule3("xattr_tdb", py_xattr_methods,
"Python bindings for xattr manipulation.");
if (m == NULL)
return;
}
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