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 "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 *mem_ctx;
  37
  38         mem_ctx = talloc_new(NULL);
  39         if (mem_ctx == NULL) {
  40                 PyErr_NoMemory();
  41                 return NULL;
  42         }
  43
  44         s3_context = loadparm_s3_helpers();
  45
  46         s4_context = loadparm_init_s3(mem_ctx, s3_context);
  47         if (s4_context == NULL) {
  48                 PyErr_NoMemory();
  49                 return NULL;
  50         }
  51
  52         py_loadparm = pytalloc_steal(loadparm_Type, discard_const_p(struct loadparm_context, s4_context));
  53         if (py_loadparm == NULL) {
  54                 talloc_free(mem_ctx);
  55                 PyErr_NoMemory();
  56                 return NULL;
  57         }
  58
  59         talloc_free(mem_ctx);
  60
  61         return py_loadparm;
  62 }
  63
  64 static PyMethodDef pyparam_methods[] = {
  65     { "get_context", (PyCFunction)py_get_context, METH_NOARGS,
  66         "Returns LoadParm context." },
  67     {0}
  68 };
  69
  70 static struct PyModuleDef moduledef = {
  71     PyModuleDef_HEAD_INIT,
  72     .m_name = "param",
  73     .m_doc = "Parsing and writing Samba3 configuration files.",
  74     .m_size = -1,
  75     .m_methods = pyparam_methods,
  76 };
  77
  78 MODULE_INIT_FUNC(param)
  79 {
  80         PyObject *m = NULL, *mod = NULL;
  81
  82         m = PyModule_Create(&moduledef);
  83         if (m == NULL)
  84                 return NULL;
  85
  86         mod = PyImport_ImportModule("samba.param");
  87         if (mod == NULL) {
  88                 return NULL;
  89         }
  90
  91         loadparm_Type = (PyTypeObject *)PyObject_GetAttrString(mod, "LoadParm");
  92         Py_DECREF(mod);
  93         if (loadparm_Type == NULL) {
  94                 return NULL;
  95         }
  96         return m;
  97 }