2 * libounbound.i: pyUnbound module (libunbound wrapper for Python)
4 * Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
5 * Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
7 * This software is open source.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * * Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
16 * * Redistributions in binary form must reproduce the above copyright notice,
17 * this list of conditions and the following disclaimer in the documentation
18 * and/or other materials provided with the distribution.
20 * * Neither the name of the organization nor the names of its
21 * contributors may be used to endorse or promote products derived from this
22 * software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/types.h>
39 #include <sys/socket.h>
40 #include <netinet/in.h>
41 #include <arpa/inet.h>
42 #include "libunbound/unbound.h"
52 %feature("docstring") strerror "Convert error value to a human readable string."
54 // ================================================================================
55 // ub_resolve - perform resolution and validation
56 // ================================================================================
57 %typemap(in,numinputs=0,noblock=1) (struct ub_result** result)
59 struct ub_result* newubr;
63 /* result generation */
64 %typemap(argout,noblock=1) (struct ub_result** result)
66 if(1) { /* new code block for variable on stack */
68 tuple = PyTuple_New(2);
69 PyTuple_SetItem(tuple, 0, $result);
71 PyTuple_SetItem(tuple, 1, SWIG_NewPointerObj(SWIG_as_voidptr(newubr), SWIGTYPE_p_ub_result, SWIG_POINTER_OWN | 0 ));
73 PyTuple_SetItem(tuple, 1, Py_None);
80 // ================================================================================
81 // ub_ctx - validation context
82 // ================================================================================
83 %nodefaultctor ub_ctx; //no default constructor & destructor
84 %nodefaultdtor ub_ctx;
86 %newobject ub_ctx_create;
87 %delobject ub_ctx_delete;
88 %rename(_ub_ctx_delete) ub_ctx_delete;
90 %newobject ub_resolve;
93 void ub_ctx_free_dbg (struct ub_ctx* c) {
94 printf("******** UB_CTX free 0x%lX ************\n", (long unsigned int)c);
101 /** a host address */
103 /** an authoritative name server */
105 /** a mail destination (Obsolete - use MX) */
107 /** a mail forwarder (Obsolete - use MX) */
109 /** the canonical name for an alias */
111 /** marks the start of a zone of authority */
113 /** a mailbox domain name (EXPERIMENTAL) */
115 /** a mail group member (EXPERIMENTAL) */
117 /** a mail rename domain name (EXPERIMENTAL) */
119 /** a null RR (EXPERIMENTAL) */
121 /** a well known service description */
123 /** a domain name pointer */
125 /** host information */
127 /** mailbox or mail list information */
146 RR_TYPE_NSAP_PTR = 23,
157 /** LOC record RFC1876 */
161 /** draft-ietf-nimrod-dns-01.txt */
163 /** draft-ietf-nimrod-dns-01.txt */
165 /** SRV record RFC2782 */
167 /** http://www.jhsoft.com/rfc/af-saa-0069.000.rtf */
179 /** dnsind-kitchen-sink-02.txt */
181 /** Pseudo OPT record... */
185 /** draft-ietf-dnsext-delegation */
187 /** SSH Key Fingerprint */
189 /** draft-richardson-ipseckey-rr-11.txt */
190 RR_TYPE_IPSECKEY = 45,
191 /** draft-ietf-dnsext-dnssec-25 */
198 RR_TYPE_NSEC3PARAMS = 51,
203 RR_TYPE_UNSPEC = 103,
208 /** A request for mailbox-related records (MB, MG or MR) */
210 /** A request for mail agent RRs (Obsolete - see MX) */
212 /** any type (wildcard) */
215 /* RFC 4431, 5074, DNSSEC Lookaside Validation */
226 /** Hesiod (Dyer 87) */
228 /** None class, dynamic update */
235 %feature("docstring") ub_ctx "Unbound resolving and validation context.
237 The validation context is created to hold the resolver status, validation keys and a small cache (containing messages, rrsets, roundtrip times, trusted keys, lameness information).
242 >>> ctx = unbound.ub_ctx()
243 >>> ctx.resolvconf(\"/etc/resolv.conf\")
244 >>> status, result = ctx.resolve(\"www.google.com\", unbound.RR_TYPE_A, unbound.RR_CLASS_IN)
245 >>> if status==0 and result.havedata:
246 >>> print \"Result:\",result.data.address_list
247 Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
254 """Creates a resolving and validation context.
256 An exception is invoked if the process of creation an ub_ctx instance fails.
258 self.this = _unbound.ub_ctx_create()
260 raise Exception("Fatal error: unbound context initialization failed")
262 #__swig_destroy__ = _unbound.ub_ctx_free_dbg
263 __swig_destroy__ = _unbound._ub_ctx_delete
267 """Add a trust anchor to the given context.
269 The trust anchor is a string, on one line, that holds a valid DNSKEY or DS RR.
272 string, with zone-format RR on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
273 :returns: (int) 0 if OK, else error.
275 return _unbound.ub_ctx_add_ta(self,ta)
276 #parameters: struct ub_ctx *,char *,
279 def add_ta_file(self,fname):
280 """Add trust anchors to the given context.
282 Pass name of a file with DS and DNSKEY records (like from dig or drill).
285 filename of file with keyfile with trust anchors.
286 :returns: (int) 0 if OK, else error.
288 return _unbound.ub_ctx_add_ta_file(self,fname)
289 #parameters: struct ub_ctx *,char *,
292 def config(self,fname):
293 """setup configuration for the given context.
296 unbound config file (not all settings applicable). This is a power-users interface that lets you specify all sorts of options. For some specific options, such as adding trust anchors, special routines exist.
297 :returns: (int) 0 if OK, else error.
299 return _unbound.ub_ctx_config(self,fname)
300 #parameters: struct ub_ctx *,char *,
303 def debuglevel(self,d):
304 """Set debug verbosity for the context Output is directed to stderr.
307 debug level, 0 is off, 1 is very minimal, 2 is detailed, and 3 is lots.
308 :returns: (int) 0 if OK, else error.
310 return _unbound.ub_ctx_debuglevel(self,d)
311 #parameters: struct ub_ctx *,int,
314 def debugout(self,out):
315 """Set debug output (and error output) to the specified stream.
317 Pass None to disable. Default is stderr.
320 File stream to log to.
321 :returns: (int) 0 if OK, else error.
325 In order to log into file, use
329 ctx = unbound.ub_ctx()
330 fw = fopen("debug.log")
334 Another option is to print the debug informations to stderr output
338 ctx = unbound.ub_ctx()
340 ctx.debugout(sys.stderr)
342 return _unbound.ub_ctx_debugout(self,out)
343 #parameters: struct ub_ctx *,void *,
346 def hosts(self,fname="/etc/hosts"):
347 """Read list of hosts from the filename given.
349 Usually "/etc/hosts". These addresses are not flagged as DNSSEC secure when queried for.
352 file name string. If None "/etc/hosts" is used.
353 :returns: (int) 0 if OK, else error.
355 return _unbound.ub_ctx_hosts(self,fname)
356 #parameters: struct ub_ctx *,char *,
359 def print_local_zones(self):
360 """Print the local zones and their content (RR data) to the debug output.
362 :returns: (int) 0 if OK, else error.
364 return _unbound.ub_ctx_print_local_zones(self)
365 #parameters: struct ub_ctx *,
368 def resolvconf(self,fname="/etc/resolv.conf"):
369 """Read list of nameservers to use from the filename given.
371 Usually "/etc/resolv.conf". Uses those nameservers as caching proxies. If they do not support DNSSEC, validation may fail.
373 Only nameservers are picked up, the searchdomain, ndots and other settings from resolv.conf(5) are ignored.
376 file name string. If None "/etc/resolv.conf" is used.
377 :returns: (int) 0 if OK, else error.
379 return _unbound.ub_ctx_resolvconf(self,fname)
380 #parameters: struct ub_ctx *,char *,
383 def set_async(self,dothread):
384 """Set a context behaviour for asynchronous action.
387 if True, enables threading and a call to :meth:`resolve_async` creates a thread to handle work in the background.
388 If False, a process is forked to handle work in the background.
389 Changes to this setting after :meth:`async` calls have been made have no effect (delete and re-create the context to change).
390 :returns: (int) 0 if OK, else error.
392 return _unbound.ub_ctx_async(self,dothread)
393 #parameters: struct ub_ctx *,int,
396 def set_fwd(self,addr):
397 """Set machine to forward DNS queries to, the caching resolver to use.
399 IP4 or IP6 address. Forwards all DNS requests to that machine, which is expected to run a recursive resolver. If the is not DNSSEC-capable, validation may fail. Can be called several times, in that case the addresses are used as backup servers.
401 To read the list of nameservers from /etc/resolv.conf (from DHCP or so), use the call :meth:`resolvconf`.
404 address, IP4 or IP6 in string format. If the addr is None, forwarding is disabled.
405 :returns: (int) 0 if OK, else error.
407 return _unbound.ub_ctx_set_fwd(self,addr)
408 #parameters: struct ub_ctx *,char *,
411 def set_option(self,opt,val):
412 """Set an option for the context.
414 Changes to the options after :meth:`resolve`, :meth:`resolve_async`, :meth:`zone_add`, :meth:`zone_remove`, :meth:`data_add` or :meth:`data_remove` have no effect (you have to delete and re-create the context).
417 option name from the unbound.conf config file format. (not all settings applicable). The name includes the trailing ':' for example set_option("logfile:", "mylog.txt"); This is a power-users interface that lets you specify all sorts of options. For some specific options, such as adding trust anchors, special routines exist.
420 :returns: (int) 0 if OK, else error.
422 return _unbound.ub_ctx_set_option(self,opt,val)
423 #parameters: struct ub_ctx *,char *,char *,
426 def trustedkeys(self,fname):
427 """Add trust anchors to the given context.
429 Pass the name of a bind-style config file with trusted-keys{}.
432 filename of file with bind-style config entries with trust anchors.
433 :returns: (int) 0 if OK, else error.
435 return _unbound.ub_ctx_trustedkeys(self,fname)
436 #parameters: struct ub_ctx *,char *,
440 def zone_print(self):
441 """Print local zones using debougout"""
442 _unbound.ub_ctx_print_local_zones(self)
444 def zone_add(self,zonename,zonetype):
445 """Add new local zone
447 :param zonename: zone domain name (e.g. myzone.)
448 :param zonetype: type of the zone ("static",...)
449 :returns: (int) 0 if OK, else error.
451 return _unbound.ub_ctx_zone_add(self,zonename, zonetype)
452 #parameters: struct ub_ctx *,char*, char*
455 def zone_remove(self,zonename):
458 If exists, removes local zone with all the RRs.
460 :param zonename: zone domain name
461 :returns: (int) 0 if OK, else error.
463 return _unbound.ub_ctx_zone_remove(self,zonename)
464 #parameters: struct ub_ctx *,char*
467 def data_add(self,rrdata):
468 """Add new local RR data
470 :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
471 :returns: (int) 0 if OK, else error.
478 >>> ctx = unbound.ub_ctx()
479 >>> ctx.zone_add("mydomain.net.","static")
481 >>> status = ctx.data_add("test.mydomain.net. IN A 192.168.1.1")
483 >>> status, result = ctx.resolve("test.mydomain.net")
484 >>> if status==0 and result.havedata:
485 >>> print \"Result:\",result.data.address_list
486 Result: ['192.168.1.1']
489 return _unbound.ub_ctx_data_add(self,rrdata)
490 #parameters: struct ub_ctx *,char*
493 def data_remove(self,rrdata):
494 """Remove local RR data
496 If exists, remove resource record from local zone
498 :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
499 :returns: (int) 0 if OK, else error.
501 return _unbound.ub_ctx_data_remove(self,rrdata)
502 #parameters: struct ub_ctx *,char*
506 def cancel(self,async_id):
507 """Cancel an async query in progress.
509 Its callback will not be called.
512 which query to cancel.
513 :returns: (int) 0 if OK, else error.
515 return _unbound.ub_cancel(self,async_id)
516 #parameters: struct ub_ctx *,int,
520 """Get file descriptor.
522 Wait for it to become readable, at this point answers are returned from the asynchronous validating resolver. Then call the ub_process to continue processing. This routine works immediately after context creation, the fd does not change.
524 :returns: (int) -1 on error, or file descriptor to use select(2) with.
526 return _unbound.ub_fd(self)
527 #parameters: struct ub_ctx *,
531 """Poll a context to see if it has any new results Do not poll in a loop, instead extract the fd below to poll for readiness, and then check, or wait using the wait routine.
533 :returns: (int) 0 if nothing to read, or nonzero if a result is available. If nonzero, call ctx_process() to do callbacks.
535 return _unbound.ub_poll(self)
536 #parameters: struct ub_ctx *,
540 """Call this routine to continue processing results from the validating resolver (when the fd becomes readable).
542 Will perform necessary callbacks.
544 :returns: (int) 0 if OK, else error.
546 return _unbound.ub_process(self)
547 #parameters: struct ub_ctx *,
550 def resolve(self,name,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
551 """Perform resolution and validation of the target name.
554 domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
556 type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
558 class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
559 :returns: * (int) 0 if OK, else error.
560 * (:class:`ub_result`) the result data is returned in a newly allocated result structure. May be None on return, return value is set to an error in that case (out of memory).
562 if isinstance(name, unicode): #probably IDN
563 return _unbound.ub_resolve(self,idn2dname(name),rrtype,rrclass)
565 return _unbound.ub_resolve(self,name,rrtype,rrclass)
566 #parameters: struct ub_ctx *,char *,int,int,
567 #retvals: int,struct ub_result **
569 def resolve_async(self,name,mydata,callback,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
570 """Perform resolution and validation of the target name.
572 Asynchronous, after a while, the callback will be called with your data and the result.
573 If an error happens during processing, your callback will be called with error set to a nonzero value (and result==None).
576 domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
578 this data is your own data (you can pass arbitrary python object or None) which are passed on to the callback function.
580 call-back function which is called on completion of the resolution.
582 type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
584 class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
585 :returns: * (int) 0 if OK, else error.
586 * (int) async_id, an identifier number is returned for the query as it is in progress. It can be used to cancel the query.
588 **Call-back function:**
589 The call-back function looks as the follows::
591 def call_back(mydata, status, result):
595 * `mydata` - mydata object
596 * `status` - 0 when a result has been found
597 * `result` - the result structure. The result may be None, in that case err is set.
600 if isinstance(name, unicode): #probably IDN
601 return _unbound._ub_resolve_async(self,idn2dname(name),rrtype,rrclass,mydata,callback)
603 return _unbound._ub_resolve_async(self,name,rrtype,rrclass,mydata,callback)
604 #parameters: struct ub_ctx *,char *,int,int,void *,ub_callback_t,
608 """Wait for a context to finish with results.
610 Calls after the wait for you. After the wait, there are no more outstanding asynchronous queries.
612 :returns: (int) 0 if OK, else error.
614 return _unbound.ub_wait(self)
615 #parameters: struct ub_ctx *,
623 // ================================================================================
624 // ub_result - validation and resolution results
625 // ================================================================================
626 %nodefaultctor ub_result; //no default constructor & destructor
627 %nodefaultdtor ub_result;
629 %delobject ub_resolve_free;
630 %rename(_ub_resolve_free) ub_resolve_free;
633 void ub_resolve_free_dbg (struct ub_result* r) {
634 printf("******** UB_RESOLVE free 0x%lX ************\n", (long unsigned int)r);
639 %feature("docstring") ub_result "The validation and resolution results."
643 enum result_enum_rcode {
660 """Class which makes the resolution results accessible"""
661 def __init__(self, data):
662 """Creates ub_data class
663 :param data: a list of the result data in RAW format
666 raise Exception("ub_data init: No data")
670 """Represents data as string"""
671 return ';'.join([' '.join(map(lambda x:"%02X" % ord(x),a)) for a in self.data])
674 def dname2str(s, ofs=0, maxlen=0):
675 """Parses DNAME and produces a list of labels
677 :param ofs: where the conversion should start to parse data
678 :param maxlen: maximum length (0 means parse to the end)
679 :returns: list of labels (string)
687 slen = min(slen, maxlen)
691 complen = ord(s[idx])
692 res.append(s[idx+1:idx+1+complen])
697 def as_raw_data(self):
698 """Returns a list of RAW strings"""
701 raw = property(as_raw_data, doc="Returns RAW data (a list of binary encoded strings). See :meth:`as_raw_data`")
703 def as_mx_list(self):
704 """Represents data as a list of MX records (query for RR_TYPE_MX)
706 :returns: list of tuples (priority, dname)
708 return [(256*ord(rdf[0])+ord(rdf[1]),'.'.join([a for a in self.dname2str(rdf,2)])) for rdf in self.data]
710 mx_list = property(as_mx_list, doc="Returns a list of tuples containing priority and domain names. See :meth:`as_mx_list`")
712 def as_idn_mx_list(self):
713 """Represents data as a list of MX records (query for RR_TYPE_MX)
715 :returns: list of tuples (priority, unicode dname)
717 return [(256*ord(rdf[0])+ord(rdf[1]),'.'.join([encodings.idna.ToUnicode(a) for a in self.dname2str(rdf,2)])) for rdf in self.data]
719 mx_list_idn = property(as_idn_mx_list, doc="Returns a list of tuples containing priority and IDN domain names. See :meth:`as_idn_mx_list`")
721 def as_address_list(self):
722 """Represents data as a list of IP addresses (query for RR_TYPE_PTR)
724 :returns: list of strings
726 return ['.'.join(map(lambda x:str(ord(x)),a)) for a in self.data]
728 address_list = property(as_address_list, doc="Returns a list of IP addresses. See :meth:`as_address_list`")
730 def as_domain_list(self):
731 """Represents data as a list of domain names (query for RR_TYPE_A)
733 :returns: list of strings
735 return map(lambda x:'.'.join(self.dname2str(x)), self.data)
737 domain_list = property(as_domain_list, doc="Returns a list of domain names. See :meth:`as_domain_list`")
739 def as_idn_domain_list(self):
740 """Represents data as a list of unicode domain names (query for RR_TYPE_A)
742 :returns: list of strings
744 return map(lambda x: '.'.join([encodings.idna.ToUnicode(a) for a in self.dname2str(x)]), self.data)
746 domain_list_idn = property(as_idn_domain_list, doc="Returns a list of IDN domain names. See :meth:`as_idn_domain_list`")
754 PyObject* _ub_result_data(struct ub_result* result) {
758 if ((result == 0) || (!result->havedata) || (result->data == 0))
761 for (cnt=0,i=0;;i++,cnt++)
762 if (result->data[i] == 0)
765 list = PyList_New(cnt);
767 PyList_SetItem(list, i, PyString_FromStringAndSize(result->data[i],result->len[i]));
772 PyObject* _packet() {
773 return PyString_FromStringAndSize($self->answer_packet, $self->answer_len);
778 raise Exception("This class can't be created directly.")
780 #__swig_destroy__ = _unbound.ub_resolve_free_dbg
781 __swig_destroy__ = _unbound._ub_resolve_free
783 #havedata = property(_unbound.ub_result_havedata_get, _unbound.ub_result_havedata_set, "Havedata property")
785 rcode2str = {RCODE_NOERROR:'no error', RCODE_FORMERR:'form error', RCODE_SERVFAIL:'serv fail', RCODE_NXDOMAIN:'nx domain', RCODE_NOTIMPL:'not implemented', RCODE_REFUSED:'refused', RCODE_YXDOMAIN:'yxdomain', RCODE_YXRRSET:'yxrrset', RCODE_NXRRSET:'nxrrset', RCODE_NOTAUTH:'not auth', RCODE_NOTZONE:'not zone'}
787 def _get_rcode_str(self):
788 """Returns rcode in display representation form
792 return self.rcode2str[self.rcode]
794 __swig_getmethods__["rcode_str"] = _get_rcode_str
795 if _newclass:rcode_str = _swig_property(_get_rcode_str)
797 def _get_raw_data(self):
798 """Result data, a list of network order DNS rdata items.
800 Data are represented as a list of strings. To decode RAW data to the list of IP addresses use :attr:`data` attribute which returns an :class:`ub_data` instance containing conversion function.
802 return self._ub_result_data(self)
804 __swig_getmethods__["rawdata"] = _get_raw_data
805 rawdata = property(_get_raw_data, doc="Returns raw data, a list of rdata items. To decode RAW data use the :attr:`data` attribute which returns an instance of :class:`ub_data` containing the conversion functions.")
808 if not self.havedata: return None
809 return ub_data(self._ub_result_data(self))
811 __swig_getmethods__["data"] = _get_data
812 __swig_getmethods__["packet"] = _packet
813 data = property(_get_data, doc="Returns :class:`ub_data` instance containing various decoding functions or None")
819 %exception ub_resolve
821 //printf("resolve_start(%lX)\n",(long unsigned int)arg1);
822 Py_BEGIN_ALLOW_THREADS
825 //printf("resolve_stop()\n");
828 %include "libunbound/unbound.h"
831 //SWIG will see the ub_ctx as a class
836 //ub_ctx_debugout void* parameter correction
837 int ub_ctx_debugout(struct ub_ctx* ctx, FILE* out);
839 // ================================================================================
840 // ub_resolve_async - perform asynchronous resolution and validation
841 // ================================================================================
843 %typemap(in,numinputs=0,noblock=1) (int* async_id)
849 %apply PyObject* {void* mydata}
851 /* result generation */
852 %typemap(argout,noblock=1) (int* async_id)
854 if(1) { /* new code block for variable on stack */
856 tuple = PyTuple_New(2);
857 PyTuple_SetItem(tuple, 0, $result);
858 PyTuple_SetItem(tuple, 1, SWIG_From_int(asyncid));
863 // Grab a Python function object as a Python object.
864 %typemap(in) (PyObject *pyfunc) {
865 if (!PyCallable_Check($input))
867 PyErr_SetString(PyExc_TypeError, "Need a callable object!");
873 // Python callback workaround
874 int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, void* mydata, PyObject *pyfunc, int* async_id);
882 static void PythonCallBack(void* iddata, int status, struct ub_result* result)
887 id = (struct cb_data*) iddata;
888 arglist = Py_BuildValue("(OiO)",id->data,status, SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_ub_result, 0 | 0 )); // Build argument list
889 fresult = PyEval_CallObject(id->func,arglist); // Call Python
893 ub_resolve_free(result); //free ub_result
894 //ub_resolve_free_dbg(result); //free ub_result
895 Py_DECREF(arglist); // Trash arglist
899 int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, PyObject* mydata, PyObject *pyfunc, int* async_id) {
902 id = (struct cb_data*) malloc(sizeof(struct cb_data));
906 r = ub_resolve_async(ctx,name,rrtype,rrclass, (void *) id, PythonCallBack, async_id);
915 ub_resolve_async = _unbound._ub_resolve_async
918 """Reverse domain name
920 Usable for reverse lookups when the IP address should be reversed
922 return '.'.join([a for a in domain.split(".")][::-1])
924 def idn2dname(idnname):
925 """Converts domain name in IDN format to canonic domain name
927 :param idnname: (unicode string) IDN name
928 :returns: (string) domain name
930 return '.'.join([encodings.idna.ToASCII(a) for a in idnname.split('.')])
933 """Converts canonic domain name in IDN format to unicode string
935 :param name: (string) domain name
936 :returns: (unicode string) domain name
938 return '.'.join([encodings.idna.ToUnicode(a) for a in name.split('.')])