source4/param/pyparam_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
   5
   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 3 of the License, or
   9    (at your option) any later version.
  10
  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.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include <Python.h>
  21 #include "py3compat.h"
  22 #include "includes.h"
  23 #include "param/param.h"
  24 #include "param/pyparam.h"
  25 #include "param/loadparm.h"
  26 #include <pytalloc.h>
  27
  28 #define PyLoadparmContext_AsLoadparmContext(obj) pytalloc_get_type(obj, struct loadparm_context)
  29
  30 _PUBLIC_ struct loadparm_context *lpcfg_from_py_object(TALLOC_CTX *mem_ctx, PyObject *py_obj)
  31 {
  32         struct loadparm_context *lp_ctx;
  33         PyObject *param_mod;
  34         PyTypeObject *lp_type;
  35         bool is_lpobj;
  36
  37         if (PyStr_Check(py_obj) || PyUnicode_Check(py_obj)) {
  38                 lp_ctx = loadparm_init_global(false);
  39                 if (lp_ctx == NULL) {
  40                         return NULL;
  41                 }
  42                 if (!lpcfg_load(lp_ctx, PyStr_AsString(py_obj))) {
  43                         PyErr_Format(PyExc_RuntimeError, "Unable to load %s",
  44                                      PyStr_AsString(py_obj));
  45                         return NULL;
  46                 }
  47                 return lp_ctx;
  48         }
  49
  50         if (py_obj == Py_None) {
  51                 return loadparm_init_global(true);
  52         }
  53
  54         param_mod = PyImport_ImportModule("samba.param");
  55         if (param_mod == NULL) {
  56                 return NULL;
  57         }
  58
  59         lp_type = (PyTypeObject *)PyObject_GetAttrString(param_mod, "LoadParm");
  60         Py_DECREF(param_mod);
  61         if (lp_type == NULL) {
  62                 PyErr_SetString(PyExc_RuntimeError, "Unable to import LoadParm");
  63                 return NULL;
  64         }
  65
  66         is_lpobj = PyObject_TypeCheck(py_obj, lp_type);
  67         Py_DECREF(lp_type);
  68         if (is_lpobj) {
  69                 return talloc_reference(mem_ctx, PyLoadparmContext_AsLoadparmContext(py_obj));
  70         }
  71
  72         PyErr_SetNone(PyExc_TypeError);
  73         return NULL;
  74 }
  75
  76 struct loadparm_context *py_default_loadparm_context(TALLOC_CTX *mem_ctx)
  77 {
  78         return loadparm_init_global(true);
  79 }
  80
  81