lib/ntdb/pyntdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Python interface to ntdb.  Simply modified from tdb version.
   5
   6    Copyright (C) 2004-2006 Tim Potter <tpot@samba.org>
   7    Copyright (C) 2007-2008 Jelmer Vernooij <jelmer@samba.org>
   8    Copyright (C) 2011 Rusty Russell <rusty@rustcorp.com.au>
   9
  10      ** NOTE! The following LGPL license applies to the ntdb
  11      ** library. This does NOT imply that all of Samba is released
  12      ** under the LGPL
  13
  14    This library is free software; you can redistribute it and/or
  15    modify it under the terms of the GNU Lesser General Public
  16    License as published by the Free Software Foundation; either
  17    version 3 of the License, or (at your option) any later version.
  18
  19    This library is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22    Lesser General Public License for more details.
  23
  24    You should have received a copy of the GNU Lesser General Public
  25    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  26 */
  27
  28 #include <Python.h>
  29 #include "replace.h"
  30 #include "system/filesys.h"
  31
  32 #ifndef Py_RETURN_NONE
  33 #define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
  34 #endif
  35
  36 /* Include ntdb headers */
  37 #include <ntdb.h>
  38
  39 typedef struct {
  40         PyObject_HEAD
  41         struct ntdb_context *ctx;
  42         bool closed;
  43 } PyNtdbObject;
  44
  45 staticforward PyTypeObject PyNtdb;
  46
  47 static void PyErr_SetTDBError(enum NTDB_ERROR e)
  48 {
  49         PyErr_SetObject(PyExc_RuntimeError,
  50                 Py_BuildValue("(i,s)", e, ntdb_errorstr(e)));
  51 }
  52
  53 static NTDB_DATA PyString_AsNtdb_Data(PyObject *data)
  54 {
  55         NTDB_DATA ret;
  56         ret.dptr = (unsigned char *)PyString_AsString(data);
  57         ret.dsize = PyString_Size(data);
  58         return ret;
  59 }
  60
  61 static PyObject *PyString_FromNtdb_Data(NTDB_DATA data)
  62 {
  63         PyObject *ret = PyString_FromStringAndSize((const char *)data.dptr,
  64                                                    data.dsize);
  65         free(data.dptr);
  66         return ret;
  67 }
  68
  69 #define PyErr_NTDB_ERROR_IS_ERR_RAISE(ret) \
  70         if (ret != NTDB_SUCCESS) { \
  71                 PyErr_SetTDBError(ret); \
  72                 return NULL; \
  73         }
  74
  75 static void stderr_log(struct ntdb_context *ntdb,
  76                        enum ntdb_log_level level,
  77                        enum NTDB_ERROR ecode,
  78                        const char *message,
  79                        void *data)
  80 {
  81         fprintf(stderr, "%s:%s:%s\n",
  82                 ntdb_name(ntdb), ntdb_errorstr(ecode), message);
  83 }
  84
  85 static PyObject *py_ntdb_open(PyTypeObject *type, PyObject *args, PyObject *kwargs)
  86 {
  87         char *name = NULL;
  88         int ntdb_flags = NTDB_DEFAULT, flags = O_RDWR, mode = 0600;
  89         struct ntdb_context *ctx;
  90         PyNtdbObject *ret;
  91         union ntdb_attribute logattr;
  92         const char *kwnames[] = { "name", "ntdb_flags", "flags", "mode", NULL };
  93
  94         if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|siii", cast_const2(char **, kwnames), &name, &ntdb_flags, &flags, &mode))
  95                 return NULL;
  96
  97         if (name == NULL) {
  98                 ntdb_flags |= NTDB_INTERNAL;
  99         }
 100
 101         logattr.log.base.attr = NTDB_ATTRIBUTE_LOG;
 102         logattr.log.base.next = NULL;
 103         logattr.log.fn = stderr_log;
 104         ctx = ntdb_open(name, ntdb_flags, flags, mode, &logattr);
 105         if (ctx == NULL) {
 106                 PyErr_SetFromErrno(PyExc_IOError);
 107                 return NULL;
 108         }
 109
 110         ret = PyObject_New(PyNtdbObject, &PyNtdb);
 111         if (!ret) {
 112                 ntdb_close(ctx);
 113                 return NULL;
 114         }
 115
 116         ret->ctx = ctx;
 117         ret->closed = false;
 118         return (PyObject *)ret;
 119 }
 120
 121 static PyObject *obj_transaction_cancel(PyNtdbObject *self)
 122 {
 123         ntdb_transaction_cancel(self->ctx);
 124         Py_RETURN_NONE;
 125 }
 126
 127 static PyObject *obj_transaction_commit(PyNtdbObject *self)
 128 {
 129         enum NTDB_ERROR ret = ntdb_transaction_commit(self->ctx);
 130         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 131         Py_RETURN_NONE;
 132 }
 133
 134 static PyObject *obj_transaction_prepare_commit(PyNtdbObject *self)
 135 {
 136         enum NTDB_ERROR ret = ntdb_transaction_prepare_commit(self->ctx);
 137         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 138         Py_RETURN_NONE;
 139 }
 140
 141 static PyObject *obj_transaction_start(PyNtdbObject *self)
 142 {
 143         enum NTDB_ERROR ret = ntdb_transaction_start(self->ctx);
 144         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 145         Py_RETURN_NONE;
 146 }
 147
 148 static PyObject *obj_lockall(PyNtdbObject *self)
 149 {
 150         enum NTDB_ERROR ret = ntdb_lockall(self->ctx);
 151         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 152         Py_RETURN_NONE;
 153 }
 154
 155 static PyObject *obj_unlockall(PyNtdbObject *self)
 156 {
 157         ntdb_unlockall(self->ctx);
 158         Py_RETURN_NONE;
 159 }
 160
 161 static PyObject *obj_lockall_read(PyNtdbObject *self)
 162 {
 163         enum NTDB_ERROR ret = ntdb_lockall_read(self->ctx);
 164         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 165         Py_RETURN_NONE;
 166 }
 167
 168 static PyObject *obj_unlockall_read(PyNtdbObject *self)
 169 {
 170         ntdb_unlockall_read(self->ctx);
 171         Py_RETURN_NONE;
 172 }
 173
 174 static PyObject *obj_close(PyNtdbObject *self)
 175 {
 176         int ret;
 177         if (self->closed)
 178                 Py_RETURN_NONE;
 179         ret = ntdb_close(self->ctx);
 180         self->closed = true;
 181         if (ret != 0) {
 182                 PyErr_SetTDBError(NTDB_ERR_IO);
 183                 return NULL;
 184         }
 185         Py_RETURN_NONE;
 186 }
 187
 188 static PyObject *obj_get(PyNtdbObject *self, PyObject *args)
 189 {
 190         NTDB_DATA key, data;
 191         PyObject *py_key;
 192         enum NTDB_ERROR ret;
 193         if (!PyArg_ParseTuple(args, "O", &py_key))
 194                 return NULL;
 195
 196         key = PyString_AsNtdb_Data(py_key);
 197         ret = ntdb_fetch(self->ctx, key, &data);
 198         if (ret == NTDB_ERR_NOEXIST)
 199                 Py_RETURN_NONE;
 200         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 201         return PyString_FromNtdb_Data(data);
 202 }
 203
 204 static PyObject *obj_append(PyNtdbObject *self, PyObject *args)
 205 {
 206         NTDB_DATA key, data;
 207         PyObject *py_key, *py_data;
 208         enum NTDB_ERROR ret;
 209         if (!PyArg_ParseTuple(args, "OO", &py_key, &py_data))
 210                 return NULL;
 211
 212         key = PyString_AsNtdb_Data(py_key);
 213         data = PyString_AsNtdb_Data(py_data);
 214
 215         ret = ntdb_append(self->ctx, key, data);
 216         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 217         Py_RETURN_NONE;
 218 }
 219
 220 static PyObject *obj_firstkey(PyNtdbObject *self)
 221 {
 222         enum NTDB_ERROR ret;
 223         NTDB_DATA key;
 224
 225         ret = ntdb_firstkey(self->ctx, &key);
 226         if (ret == NTDB_ERR_NOEXIST)
 227                 Py_RETURN_NONE;
 228         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 229
 230         return PyString_FromNtdb_Data(key);
 231 }
 232
 233 static PyObject *obj_nextkey(PyNtdbObject *self, PyObject *args)
 234 {
 235         NTDB_DATA key;
 236         PyObject *py_key;
 237         enum NTDB_ERROR ret;
 238         if (!PyArg_ParseTuple(args, "O", &py_key))
 239                 return NULL;
 240
 241         /* Malloc here, since ntdb_nextkey frees. */
 242         key.dsize = PyString_Size(py_key);
 243         key.dptr = malloc(key.dsize);
 244         memcpy(key.dptr, PyString_AsString(py_key), key.dsize);
 245
 246         ret = ntdb_nextkey(self->ctx, &key);
 247         if (ret == NTDB_ERR_NOEXIST)
 248                 Py_RETURN_NONE;
 249         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 250
 251         return PyString_FromNtdb_Data(key);
 252 }
 253
 254 static PyObject *obj_delete(PyNtdbObject *self, PyObject *args)
 255 {
 256         NTDB_DATA key;
 257         PyObject *py_key;
 258         enum NTDB_ERROR ret;
 259         if (!PyArg_ParseTuple(args, "O", &py_key))
 260                 return NULL;
 261
 262         key = PyString_AsNtdb_Data(py_key);
 263         ret = ntdb_delete(self->ctx, key);
 264         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 265         Py_RETURN_NONE;
 266 }
 267
 268 static PyObject *obj_has_key(PyNtdbObject *self, PyObject *args)
 269 {
 270         NTDB_DATA key;
 271         PyObject *py_key;
 272         if (!PyArg_ParseTuple(args, "O", &py_key))
 273                 return NULL;
 274
 275         key = PyString_AsNtdb_Data(py_key);
 276         if (ntdb_exists(self->ctx, key))
 277                 return Py_True;
 278         return Py_False;
 279 }
 280
 281 static PyObject *obj_store(PyNtdbObject *self, PyObject *args)
 282 {
 283         NTDB_DATA key, value;
 284         enum NTDB_ERROR ret;
 285         int flag = NTDB_REPLACE;
 286         PyObject *py_key, *py_value;
 287
 288         if (!PyArg_ParseTuple(args, "OO|i", &py_key, &py_value, &flag))
 289                 return NULL;
 290
 291         key = PyString_AsNtdb_Data(py_key);
 292         value = PyString_AsNtdb_Data(py_value);
 293
 294         ret = ntdb_store(self->ctx, key, value, flag);
 295         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 296         Py_RETURN_NONE;
 297 }
 298
 299 static PyObject *obj_add_flag(PyNtdbObject *self, PyObject *args)
 300 {
 301         unsigned flag;
 302
 303         if (!PyArg_ParseTuple(args, "I", &flag))
 304                 return NULL;
 305
 306         ntdb_add_flag(self->ctx, flag);
 307         Py_RETURN_NONE;
 308 }
 309
 310 static PyObject *obj_remove_flag(PyNtdbObject *self, PyObject *args)
 311 {
 312         unsigned flag;
 313
 314         if (!PyArg_ParseTuple(args, "I", &flag))
 315                 return NULL;
 316
 317         ntdb_remove_flag(self->ctx, flag);
 318         Py_RETURN_NONE;
 319 }
 320
 321 typedef struct {
 322         PyObject_HEAD
 323         NTDB_DATA current;
 324         bool end;
 325         PyNtdbObject *iteratee;
 326 } PyNtdbIteratorObject;
 327
 328 static PyObject *ntdb_iter_next(PyNtdbIteratorObject *self)
 329 {
 330         enum NTDB_ERROR e;
 331         PyObject *ret;
 332         if (self->end)
 333                 return NULL;
 334         ret = PyString_FromStringAndSize((const char *)self->current.dptr,
 335                                          self->current.dsize);
 336         e = ntdb_nextkey(self->iteratee->ctx, &self->current);
 337         if (e == NTDB_ERR_NOEXIST)
 338                 self->end = true;
 339         else
 340                 PyErr_NTDB_ERROR_IS_ERR_RAISE(e);
 341         return ret;
 342 }
 343
 344 static void ntdb_iter_dealloc(PyNtdbIteratorObject *self)
 345 {
 346         Py_DECREF(self->iteratee);
 347         PyObject_Del(self);
 348 }
 349
 350 PyTypeObject PyNtdbIterator = {
 351         .tp_name = "Iterator",
 352         .tp_basicsize = sizeof(PyNtdbIteratorObject),
 353         .tp_iternext = (iternextfunc)ntdb_iter_next,
 354         .tp_dealloc = (destructor)ntdb_iter_dealloc,
 355         .tp_flags = Py_TPFLAGS_DEFAULT,
 356         .tp_iter = PyObject_SelfIter,
 357 };
 358
 359 static PyObject *ntdb_object_iter(PyNtdbObject *self)
 360 {
 361         PyNtdbIteratorObject *ret;
 362         enum NTDB_ERROR e;
 363
 364         ret = PyObject_New(PyNtdbIteratorObject, &PyNtdbIterator);
 365         if (!ret)
 366                 return NULL;
 367         e = ntdb_firstkey(self->ctx, &ret->current);
 368         if (e == NTDB_ERR_NOEXIST) {
 369                 ret->end = true;
 370         } else {
 371                 PyErr_NTDB_ERROR_IS_ERR_RAISE(e);
 372                 ret->end = false;
 373         }
 374         ret->iteratee = self;
 375         Py_INCREF(self);
 376         return (PyObject *)ret;
 377 }
 378
 379 static PyObject *obj_clear(PyNtdbObject *self)
 380 {
 381         enum NTDB_ERROR ret = ntdb_wipe_all(self->ctx);
 382         PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 383         Py_RETURN_NONE;
 384 }
 385
 386 static PyObject *obj_enable_seqnum(PyNtdbObject *self)
 387 {
 388         ntdb_add_flag(self->ctx, NTDB_SEQNUM);
 389         Py_RETURN_NONE;
 390 }
 391
 392 static PyMethodDef ntdb_object_methods[] = {
 393         { "transaction_cancel", (PyCFunction)obj_transaction_cancel, METH_NOARGS,
 394                 "S.transaction_cancel() -> None\n"
 395                 "Cancel the currently active transaction." },
 396         { "transaction_commit", (PyCFunction)obj_transaction_commit, METH_NOARGS,
 397                 "S.transaction_commit() -> None\n"
 398                 "Commit the currently active transaction." },
 399         { "transaction_prepare_commit", (PyCFunction)obj_transaction_prepare_commit, METH_NOARGS,
 400                 "S.transaction_prepare_commit() -> None\n"
 401                 "Prepare to commit the currently active transaction" },
 402         { "transaction_start", (PyCFunction)obj_transaction_start, METH_NOARGS,
 403                 "S.transaction_start() -> None\n"
 404                 "Start a new transaction." },
 405         { "lock_all", (PyCFunction)obj_lockall, METH_NOARGS, NULL },
 406         { "unlock_all", (PyCFunction)obj_unlockall, METH_NOARGS, NULL },
 407         { "read_lock_all", (PyCFunction)obj_lockall_read, METH_NOARGS, NULL },
 408         { "read_unlock_all", (PyCFunction)obj_unlockall_read, METH_NOARGS, NULL },
 409         { "close", (PyCFunction)obj_close, METH_NOARGS, NULL },
 410         { "get", (PyCFunction)obj_get, METH_VARARGS, "S.get(key) -> value\n"
 411                 "Fetch a value." },
 412         { "append", (PyCFunction)obj_append, METH_VARARGS, "S.append(key, value) -> None\n"
 413                 "Append data to an existing key." },
 414         { "firstkey", (PyCFunction)obj_firstkey, METH_NOARGS, "S.firstkey() -> data\n"
 415                 "Return the first key in this database." },
 416         { "nextkey", (PyCFunction)obj_nextkey, METH_NOARGS, "S.nextkey(key) -> data\n"
 417                 "Return the next key in this database." },
 418         { "delete", (PyCFunction)obj_delete, METH_VARARGS, "S.delete(key) -> None\n"
 419                 "Delete an entry." },
 420         { "has_key", (PyCFunction)obj_has_key, METH_VARARGS, "S.has_key(key) -> None\n"
 421                 "Check whether key exists in this database." },
 422         { "store", (PyCFunction)obj_store, METH_VARARGS, "S.store(key, data, flag=REPLACE) -> None"
 423                 "Store data." },
 424         { "add_flag", (PyCFunction)obj_add_flag, METH_VARARGS, "S.add_flag(flag) -> None" },
 425         { "remove_flag", (PyCFunction)obj_remove_flag, METH_VARARGS, "S.remove_flag(flag) -> None" },
 426         { "iterkeys", (PyCFunction)ntdb_object_iter, METH_NOARGS, "S.iterkeys() -> iterator" },
 427         { "clear", (PyCFunction)obj_clear, METH_NOARGS, "S.clear() -> None\n"
 428                 "Wipe the entire database." },
 429         { "enable_seqnum", (PyCFunction)obj_enable_seqnum, METH_NOARGS,
 430                 "S.enable_seqnum() -> None" },
 431         { NULL }
 432 };
 433
 434 static PyObject *obj_get_flags(PyNtdbObject *self, void *closure)
 435 {
 436         return PyInt_FromLong(ntdb_get_flags(self->ctx));
 437 }
 438
 439 static PyObject *obj_get_filename(PyNtdbObject *self, void *closure)
 440 {
 441         return PyString_FromString(ntdb_name(self->ctx));
 442 }
 443
 444 static PyObject *obj_get_seqnum(PyNtdbObject *self, void *closure)
 445 {
 446         return PyInt_FromLong(ntdb_get_seqnum(self->ctx));
 447 }
 448
 449
 450 static PyGetSetDef ntdb_object_getsetters[] = {
 451         { cast_const(char *, "flags"), (getter)obj_get_flags, NULL, NULL },
 452         { cast_const(char *, "filename"), (getter)obj_get_filename, NULL,
 453           cast_const(char *, "The filename of this NTDB file.")},
 454         { cast_const(char *, "seqnum"), (getter)obj_get_seqnum, NULL, NULL },
 455         { NULL }
 456 };
 457
 458 static PyObject *ntdb_object_repr(PyNtdbObject *self)
 459 {
 460         if (ntdb_get_flags(self->ctx) & NTDB_INTERNAL) {
 461                 return PyString_FromString("Ntdb(<internal>)");
 462         } else {
 463                 return PyString_FromFormat("Ntdb('%s')", ntdb_name(self->ctx));
 464         }
 465 }
 466
 467 static void ntdb_object_dealloc(PyNtdbObject *self)
 468 {
 469         if (!self->closed)
 470                 ntdb_close(self->ctx);
 471         self->ob_type->tp_free(self);
 472 }
 473
 474 static PyObject *obj_getitem(PyNtdbObject *self, PyObject *key)
 475 {
 476         NTDB_DATA tkey, val;
 477         enum NTDB_ERROR ret;
 478
 479         if (!PyString_Check(key)) {
 480                 PyErr_SetString(PyExc_TypeError, "Expected string as key");
 481                 return NULL;
 482         }
 483
 484         tkey.dptr = (unsigned char *)PyString_AsString(key);
 485         tkey.dsize = PyString_Size(key);
 486
 487         ret = ntdb_fetch(self->ctx, tkey, &val);
 488         if (ret == NTDB_ERR_NOEXIST) {
 489                 PyErr_SetString(PyExc_KeyError, "No such NTDB entry");
 490                 return NULL;
 491         } else {
 492                 PyErr_NTDB_ERROR_IS_ERR_RAISE(ret);
 493                 return PyString_FromNtdb_Data(val);
 494         }
 495 }
 496
 497 static int obj_setitem(PyNtdbObject *self, PyObject *key, PyObject *value)
 498 {
 499         NTDB_DATA tkey, tval;
 500         enum NTDB_ERROR ret;
 501         if (!PyString_Check(key)) {
 502                 PyErr_SetString(PyExc_TypeError, "Expected string as key");
 503                 return -1;
 504         }
 505
 506         tkey = PyString_AsNtdb_Data(key);
 507
 508         if (value == NULL) {
 509                 ret = ntdb_delete(self->ctx, tkey);
 510         } else {
 511                 if (!PyString_Check(value)) {
 512                         PyErr_SetString(PyExc_TypeError, "Expected string as value");
 513                         return -1;
 514                 }
 515
 516                 tval = PyString_AsNtdb_Data(value);
 517
 518                 ret = ntdb_store(self->ctx, tkey, tval, NTDB_REPLACE);
 519         }
 520
 521         if (ret != NTDB_SUCCESS) {
 522                 PyErr_SetTDBError(ret);
 523                 return -1;
 524         }
 525
 526         return ret;
 527 }
 528
 529 static PyMappingMethods ntdb_object_mapping = {
 530         .mp_subscript = (binaryfunc)obj_getitem,
 531         .mp_ass_subscript = (objobjargproc)obj_setitem,
 532 };
 533 static PyTypeObject PyNtdb = {
 534         .tp_name = "ntdb.Ntdb",
 535         .tp_basicsize = sizeof(PyNtdbObject),
 536         .tp_methods = ntdb_object_methods,
 537         .tp_getset = ntdb_object_getsetters,
 538         .tp_new = py_ntdb_open,
 539         .tp_doc = "A NTDB file",
 540         .tp_repr = (reprfunc)ntdb_object_repr,
 541         .tp_dealloc = (destructor)ntdb_object_dealloc,
 542         .tp_as_mapping = &ntdb_object_mapping,
 543         .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_ITER,
 544         .tp_iter = (getiterfunc)ntdb_object_iter,
 545 };
 546
 547 static PyMethodDef ntdb_methods[] = {
 548         { "open", (PyCFunction)py_ntdb_open, METH_VARARGS|METH_KEYWORDS, "open(name, hash_size=0, ntdb_flags=NTDB_DEFAULT, flags=O_RDWR, mode=0600)\n"
 549                 "Open a NTDB file." },
 550         { NULL }
 551 };
 552
 553 void initntdb(void);
 554 void initntdb(void)
 555 {
 556         PyObject *m;
 557
 558         if (PyType_Ready(&PyNtdb) < 0)
 559                 return;
 560
 561         if (PyType_Ready(&PyNtdbIterator) < 0)
 562                 return;
 563
 564         m = Py_InitModule3("ntdb", ntdb_methods, "NTDB is a simple key-value database similar to GDBM that supports multiple writers.");
 565         if (m == NULL)
 566                 return;
 567
 568         PyModule_AddObject(m, "REPLACE", PyInt_FromLong(NTDB_REPLACE));
 569         PyModule_AddObject(m, "INSERT", PyInt_FromLong(NTDB_INSERT));
 570         PyModule_AddObject(m, "MODIFY", PyInt_FromLong(NTDB_MODIFY));
 571
 572         PyModule_AddObject(m, "DEFAULT", PyInt_FromLong(NTDB_DEFAULT));
 573         PyModule_AddObject(m, "INTERNAL", PyInt_FromLong(NTDB_INTERNAL));
 574         PyModule_AddObject(m, "NOLOCK", PyInt_FromLong(NTDB_NOLOCK));
 575         PyModule_AddObject(m, "NOMMAP", PyInt_FromLong(NTDB_NOMMAP));
 576         PyModule_AddObject(m, "CONVERT", PyInt_FromLong(NTDB_CONVERT));
 577         PyModule_AddObject(m, "NOSYNC", PyInt_FromLong(NTDB_NOSYNC));
 578         PyModule_AddObject(m, "SEQNUM", PyInt_FromLong(NTDB_SEQNUM));
 579         PyModule_AddObject(m, "ALLOW_NESTING", PyInt_FromLong(NTDB_ALLOW_NESTING));
 580
 581         PyModule_AddObject(m, "__docformat__", PyString_FromString("restructuredText"));
 582
 583         PyModule_AddObject(m, "__version__", PyString_FromString(PACKAGE_VERSION));
 584
 585         Py_INCREF(&PyNtdb);
 586         PyModule_AddObject(m, "Ntdb", (PyObject *)&PyNtdb);
 587
 588         Py_INCREF(&PyNtdbIterator);
 589 }