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 "includes.h"
  22 #include "param/param.h"
  23 #include "param/loadparm.h"
  24 #include "lib/talloc/pytalloc.h"
  25
  26 #define PyLoadparmContext_AsLoadparmContext(obj) py_talloc_get_type(obj, struct loadparm_context)
  27
  28 _PUBLIC_ struct loadparm_context *lpcfg_from_py_object(TALLOC_CTX *mem_ctx, PyObject *py_obj)
  29 {
  30     struct loadparm_context *lp_ctx;
  31         PyObject *param_mod;
  32         PyTypeObject *lp_type;
  33         bool is_lpobj;
  34
  35     if (PyString_Check(py_obj)) {
  36         lp_ctx = loadparm_init(mem_ctx);
  37         if (!lpcfg_load(lp_ctx, PyString_AsString(py_obj))) {
  38             talloc_free(lp_ctx);
  39                         PyErr_Format(PyExc_RuntimeError, "Unable to load %s",
  40                                                  PyString_AsString(py_obj));
  41             return NULL;
  42         }
  43         return lp_ctx;
  44     }
  45
  46     if (py_obj == Py_None) {
  47         lp_ctx = loadparm_init(mem_ctx);
  48                 /* We're not checking that loading the file succeeded *on purpose */
  49         lpcfg_load_default(lp_ctx);
  50         return lp_ctx;
  51     }
  52
  53         param_mod = PyImport_ImportModule("samba.param");
  54         if (param_mod == NULL) {
  55                 return NULL;
  56         }
  57
  58         lp_type = (PyTypeObject *)PyObject_GetAttrString(param_mod, "LoadParm");
  59         Py_DECREF(param_mod);
  60         if (lp_type == NULL) {
  61                 PyErr_SetString(PyExc_RuntimeError, "Unable to import LoadParm");
  62                 return NULL;
  63         }
  64
  65         is_lpobj = PyObject_TypeCheck(py_obj, lp_type);
  66         Py_DECREF(lp_type);
  67         if (is_lpobj) {
  68                 return talloc_reference(mem_ctx, PyLoadparmContext_AsLoadparmContext(py_obj));
  69         }
  70
  71         PyErr_SetNone(PyExc_TypeError);
  72         return NULL;
  73 }
  74
  75 struct loadparm_context *py_default_loadparm_context(TALLOC_CTX *mem_ctx)
  76 {
  77     struct loadparm_context *ret;
  78     ret = loadparm_init(mem_ctx);
  79     if (!lpcfg_load_default(ret))
  80         return NULL;
  81     return ret;
  82 }
  83
  84