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 <Python.h>
  21 #include "includes.h"
  22 #include "param/param.h"
  23 #include "param/loadparm.h"
  24 #include "lib/talloc/pytalloc.h"
  25
  26 static PyTypeObject *loadparm_Type = NULL;
  27
  28 void initparam(void);
  29
  30 static PyObject *py_get_context(PyObject *self)
  31 {
  32         PyObject *py_loadparm;
  33         const struct loadparm_s3_helpers *s3_context;
  34         const struct loadparm_context *s4_context;
  35         TALLOC_CTX *mem_ctx;
  36
  37         mem_ctx = talloc_new(NULL);
  38         if (mem_ctx == NULL) {
  39                 PyErr_NoMemory();
  40                 return NULL;
  41         }
  42
  43         s3_context = loadparm_s3_helpers();
  44
  45         s4_context = loadparm_init_s3(mem_ctx, s3_context);
  46         if (s4_context == NULL) {
  47                 PyErr_NoMemory();
  48                 return NULL;
  49         }
  50
  51         py_loadparm = pytalloc_steal(loadparm_Type, discard_const_p(struct loadparm_context, s4_context));
  52         if (py_loadparm == NULL) {
  53                 talloc_free(mem_ctx);
  54                 PyErr_NoMemory();
  55                 return NULL;
  56         }
  57
  58         talloc_free(mem_ctx);
  59
  60         return py_loadparm;
  61 }
  62
  63 static PyMethodDef pyparam_methods[] = {
  64     { "get_context", (PyCFunction)py_get_context, METH_NOARGS,
  65         "Returns LoadParm context." },
  66     { NULL }
  67 };
  68
  69 void initparam(void)
  70 {
  71         PyObject *m, *mod;
  72
  73         m = Py_InitModule3("param", pyparam_methods, "Parsing and writing Samba3 configuration files.");
  74         if (m == NULL)
  75                 return;
  76
  77         mod = PyImport_ImportModule("samba.param");
  78         if (mod == NULL) {
  79                 return;
  80         }
  81
  82         loadparm_Type = (PyTypeObject *)PyObject_GetAttrString(mod, "LoadParm");
  83         Py_DECREF(mod);
  84         if (loadparm_Type == NULL) {
  85                 return;
  86         }
  87 }