diff options
Diffstat (limited to 'source4/scripting/python/pyxattr_tdb.c')
| -rw-r--r-- | source4/scripting/python/pyxattr_tdb.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/source4/scripting/python/pyxattr_tdb.c b/source4/scripting/python/pyxattr_tdb.c new file mode 100644 index 0000000000..19b4f417a8 --- /dev/null +++ b/source4/scripting/python/pyxattr_tdb.c @@ -0,0 +1,133 @@ +/* + 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 "version.h" +#include "includes.h" +#include "../tdb/include/tdb.h" +#include "tdb_wrap.h" +#include "librpc/ndr/libndr.h" +#include "lib/util/wrap_xattr.h" +#include "ntvfs/posix/vfs_posix.h" + +#ifndef Py_RETURN_NONE +#define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None +#endif + +static PyObject *py_is_xattr_supported(PyObject *self) +{ +/*#if !defined(HAVE_XATTR_SUPPORT) + return Py_False; +#else + return Py_True; +#endif*/ + return Py_True; +} +static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args) +{ + char *filename, *attribute, *tdbname; + DATA_BLOB blob; + int blobsize; + NTSTATUS status; + TALLOC_CTX *mem_ctx; + struct tdb_wrap *eadb; + + if (!PyArg_ParseTuple(args, "ssss#", &tdbname,&filename,&attribute,&blob.data,&blobsize)) + return NULL; + + blob.length = blobsize; + mem_ctx = talloc_new(NULL); + eadb = tdb_wrap_open(mem_ctx, tdbname, 50000, + TDB_DEFAULT, O_RDWR|O_CREAT, 0600); + + if (eadb == NULL) { + PyErr_SetFromErrno(PyExc_IOError); + return NULL; + } status = push_xattr_blob_tdb_raw(eadb,mem_ctx,attribute,filename,-1,&blob); + if( !NT_STATUS_IS_OK(status) ) { + PyErr_SetString(PyExc_TypeError, strerror(errno)); + return NULL; + } + 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; + NTSTATUS status; + struct tdb_wrap *eadb = NULL; + + if (!PyArg_ParseTuple(args, "sss", &tdbname,&filename,&attribute)) + return NULL; + + mem_ctx = talloc_new(NULL); + eadb = tdb_wrap_open(mem_ctx, tdbname, 50000, + TDB_DEFAULT, O_RDWR|O_CREAT, 0600); + if (eadb == NULL) { + + PyErr_SetFromErrno(PyExc_IOError); + return NULL; + } + status = pull_xattr_blob_tdb_raw(eadb,mem_ctx,attribute,filename,-1,100,&blob); + if( !NT_STATUS_IS_OK(status) || blob.length < 0 ) { + PyErr_SetString(PyExc_TypeError, get_friendly_nt_error_msg(status)); + return NULL; + } + ret = PyString_FromStringAndSize(blob.data,blob.length); + return ret; +} + +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 backed by tdb 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; + + PyModule_AddObject(m, "version", PyString_FromString(SAMBA_VERSION_STRING)); + + /* one of the most annoying things about python scripts is + that they don't die when you hit control-C. This fixes that + sillyness. As we do all database operations using + transactions, this is also safe. In fact, not dying + immediately is unsafe as we could end up treating the + control-C exception as a different error and try to modify + as database incorrectly + */ + signal(SIGINT, SIG_DFL); +} + |