source3/param/pyparam.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba utility functions
   4    Copyright (C) Amitay Isaacs <amitay@gmail.com> 2011
   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 "lib/replace/system/python.h"
  21 #include "includes.h"
  22 #include "python/py3compat.h"
  23 #include "param/param.h"
  24 #include "param/loadparm.h"
  25 #include "lib/talloc/pytalloc.h"
  26
  27 static PyTypeObject *loadparm_Type = NULL;
  28
  29 void initparam(void);
  30
  31 static PyObject *py_get_context(PyObject *self, PyObject *Py_UNUSED(ignored))
  32 {
  33         PyObject *py_loadparm;
  34         const struct loadparm_s3_helpers *s3_context;
  35         const struct loadparm_context *s4_context;
  36         TALLOC_CTX *frame = talloc_stackframe();
  37
  38         s3_context = loadparm_s3_helpers();
  39
  40         s4_context = loadparm_init_s3(frame, s3_context);
  41         if (s4_context == NULL) {
  42                 talloc_free(frame);
  43                 PyErr_NoMemory();
  44                 return NULL;
  45         }
  46
  47         py_loadparm = pytalloc_steal(loadparm_Type, discard_const_p(struct loadparm_context, s4_context));
  48         if (py_loadparm == NULL) {
  49                 talloc_free(frame);
  50                 PyErr_NoMemory();
  51                 return NULL;
  52         }
  53
  54         talloc_free(frame);
  55
  56         return py_loadparm;
  57 }
  58
  59 static PyMethodDef pyparam_methods[] = {
  60     { "get_context", (PyCFunction)py_get_context, METH_NOARGS,
  61         "Returns LoadParm context." },
  62     {0}
  63 };
  64
  65 static struct PyModuleDef moduledef = {
  66     PyModuleDef_HEAD_INIT,
  67     .m_name = "param",
  68     .m_doc = "Parsing and writing Samba3 configuration files.",
  69     .m_size = -1,
  70     .m_methods = pyparam_methods,
  71 };
  72
  73 MODULE_INIT_FUNC(param)
  74 {
  75         PyObject *m = NULL, *mod = NULL;
  76
  77         m = PyModule_Create(&moduledef);
  78         if (m == NULL)
  79                 return NULL;
  80
  81         mod = PyImport_ImportModule("samba.param");
  82         if (mod == NULL) {
  83                 return NULL;
  84         }
  85
  86         loadparm_Type = (PyTypeObject *)PyObject_GetAttrString(mod, "LoadParm");
  87         Py_DECREF(mod);
  88         if (loadparm_Type == NULL) {
  89                 return NULL;
  90         }
  91         return m;
  92 }