source3/python/py_conv.c

   1 /*
   2    Python wrappers for DCERPC/SMB client routines.
   3
   4    Copyright (C) Tim Potter, 2002
   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 2 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, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "Python.h"
  23 #include "py_conv.h"
  24
  25 /* Helper for rpcstr_pull() function */
  26
  27 static void fstr_pull(fstring str, UNISTR *uni)
  28 {
  29         rpcstr_pull(str, uni->buffer, sizeof(fstring), 0, STR_TERMINATE);
  30 }
  31
  32 /* Convert a structure to a Python dict */
  33
  34 PyObject *from_struct(void *s, struct pyconv *conv)
  35 {
  36         PyObject *obj, *item;
  37         int i;
  38
  39         obj = PyDict_New();
  40
  41         for (i = 0; conv[i].name; i++) {
  42                 switch (conv[i].type) {
  43                 case PY_UNISTR: {
  44                         UNISTR *u = (UNISTR *)((char *)s + conv[i].offset);
  45                         fstring s = "";
  46
  47                         if (u->buffer)
  48                                 fstr_pull(s, u);
  49
  50                         item = PyString_FromString(s);
  51                         PyDict_SetItemString(obj, conv[i].name, item);
  52
  53                         break;
  54                 }
  55                 case PY_UINT32: {
  56                         uint32 *u = (uint32 *)((char *)s + conv[i].offset);
  57
  58                         item = PyInt_FromLong(*u);
  59                         PyDict_SetItemString(obj, conv[i].name, item);
  60
  61                         break;
  62                 }
  63                 case PY_UINT16: {
  64                         uint16 *u = (uint16 *)((char *)s + conv[i].offset);
  65
  66                         item = PyInt_FromLong(*u);
  67                         PyDict_SetItemString(obj, conv[i].name, item);
  68
  69                         break;
  70                 }
  71                 default:
  72                         break;
  73                 }
  74         }
  75
  76         return obj;
  77 }
  78
  79 /* Convert a Python dict to a structure */
  80
  81 void to_struct(void *s, PyObject *dict, struct pyconv *conv)
  82 {
  83         int i;
  84
  85         for (i = 0; conv[i].name; i++) {
  86                 PyObject *obj;
  87
  88                 obj = PyDict_GetItemString(dict, conv[i].name);
  89
  90                 switch (conv[i].type) {
  91                 case PY_UNISTR: {
  92                         UNISTR *u = (UNISTR *)((char *)s + conv[i].offset);
  93                         char *s = "";
  94
  95                         if (obj && PyString_Check(obj))
  96                                 s = PyString_AsString(obj);
  97
  98                         init_unistr(u, s);
  99
 100                         break;
 101                 }
 102                 case PY_UINT32: {
 103                         uint32 *u = (uint32 *)((char *)s + conv[i].offset);
 104
 105                         if (obj && PyInt_Check(obj))
 106                                 *u = PyInt_AsLong(obj);
 107                         else
 108                                 *u = 0;
 109
 110                         break;
 111                 }
 112                 case PY_UINT16: {
 113                         uint16 *u = (uint16 *)((char *)s + conv[i].offset);
 114
 115                         if (obj && PyInt_Check(obj))
 116                                 *u = PyInt_AsLong(obj);
 117                         else
 118                                 *u = 0;
 119
 120                         break;
 121                 }
 122                 default:
 123                         break;
 124                 }
 125         }
 126 }