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"
50 import __builtin__ as builtins
52 # Ensure compatibility with older python versions
53 if 'bytes' not in vars():
57 if isinstance(s, int):
59 return builtins.ord(s)
65 %feature("docstring") strerror "Convert error value to a human readable string."
67 // ================================================================================
68 // ub_resolve - perform resolution and validation
69 // ================================================================================
70 %typemap(in,numinputs=0,noblock=1) (struct ub_result** result)
72 struct ub_result* newubr;
76 /* result generation */
77 %typemap(argout,noblock=1) (struct ub_result** result)
79 if(1) { /* new code block for variable on stack */
81 tuple = PyTuple_New(2);
82 PyTuple_SetItem(tuple, 0, $result);
84 PyTuple_SetItem(tuple, 1, SWIG_NewPointerObj(SWIG_as_voidptr(newubr), SWIGTYPE_p_ub_result, SWIG_POINTER_OWN | 0 ));
86 PyTuple_SetItem(tuple, 1, Py_None);
93 // ================================================================================
94 // ub_ctx - validation context
95 // ================================================================================
96 %nodefaultctor ub_ctx; //no default constructor & destructor
97 %nodefaultdtor ub_ctx;
99 %newobject ub_ctx_create;
100 %delobject ub_ctx_delete;
101 %rename(_ub_ctx_delete) ub_ctx_delete;
103 %newobject ub_resolve;
106 void ub_ctx_free_dbg (struct ub_ctx* c) {
107 printf("******** UB_CTX free 0x%lX ************\n", (long unsigned int)c);
114 /** a host address */
116 /** an authoritative name server */
118 /** a mail destination (Obsolete - use MX) */
120 /** a mail forwarder (Obsolete - use MX) */
122 /** the canonical name for an alias */
124 /** marks the start of a zone of authority */
126 /** a mailbox domain name (EXPERIMENTAL) */
128 /** a mail group member (EXPERIMENTAL) */
130 /** a mail rename domain name (EXPERIMENTAL) */
132 /** a null RR (EXPERIMENTAL) */
134 /** a well known service description */
136 /** a domain name pointer */
138 /** host information */
140 /** mailbox or mail list information */
159 RR_TYPE_NSAP_PTR = 23,
170 /** LOC record RFC1876 */
174 /** draft-ietf-nimrod-dns-01.txt */
176 /** draft-ietf-nimrod-dns-01.txt */
178 /** SRV record RFC2782 */
180 /** http://www.jhsoft.com/rfc/af-saa-0069.000.rtf */
192 /** dnsind-kitchen-sink-02.txt */
194 /** Pseudo OPT record... */
198 /** draft-ietf-dnsext-delegation */
200 /** SSH Key Fingerprint */
202 /** draft-richardson-ipseckey-rr-11.txt */
203 RR_TYPE_IPSECKEY = 45,
204 /** draft-ietf-dnsext-dnssec-25 */
211 RR_TYPE_NSEC3PARAMS = 51,
216 RR_TYPE_UNSPEC = 103,
221 /** A request for mailbox-related records (MB, MG or MR) */
223 /** A request for mail agent RRs (Obsolete - see MX) */
225 /** any type (wildcard) */
228 /* RFC 4431, 5074, DNSSEC Lookaside Validation */
239 /** Hesiod (Dyer 87) */
241 /** None class, dynamic update */
248 %feature("docstring") ub_ctx "Unbound resolving and validation context.
250 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).
255 >>> ctx = unbound.ub_ctx()
256 >>> ctx.resolvconf(\"/etc/resolv.conf\")
257 >>> status, result = ctx.resolve(\"www.google.com\", unbound.RR_TYPE_A, unbound.RR_CLASS_IN)
258 >>> if status==0 and result.havedata:
259 >>> print \"Result:\",result.data.address_list
260 Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
267 """Creates a resolving and validation context.
269 An exception is invoked if the process of creation an ub_ctx instance fails.
271 self.this = _unbound.ub_ctx_create()
273 raise Exception("Fatal error: unbound context initialization failed")
275 #__swig_destroy__ = _unbound.ub_ctx_free_dbg
276 __swig_destroy__ = _unbound._ub_ctx_delete
280 """Add a trust anchor to the given context.
282 The trust anchor is a string, on one line, that holds a valid DNSKEY or DS RR.
285 string, with zone-format RR on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
286 :returns: (int) 0 if OK, else error.
288 return _unbound.ub_ctx_add_ta(self,ta)
289 #parameters: struct ub_ctx *,char *,
292 def add_ta_file(self,fname):
293 """Add trust anchors to the given context.
295 Pass name of a file with DS and DNSKEY records (like from dig or drill).
298 filename of file with keyfile with trust anchors.
299 :returns: (int) 0 if OK, else error.
301 return _unbound.ub_ctx_add_ta_file(self,fname)
302 #parameters: struct ub_ctx *,char *,
305 def config(self,fname):
306 """setup configuration for the given context.
309 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.
310 :returns: (int) 0 if OK, else error.
312 return _unbound.ub_ctx_config(self,fname)
313 #parameters: struct ub_ctx *,char *,
316 def debuglevel(self,d):
317 """Set debug verbosity for the context Output is directed to stderr.
320 debug level, 0 is off, 1 is very minimal, 2 is detailed, and 3 is lots.
321 :returns: (int) 0 if OK, else error.
323 return _unbound.ub_ctx_debuglevel(self,d)
324 #parameters: struct ub_ctx *,int,
327 def debugout(self,out):
328 """Set debug output (and error output) to the specified stream.
330 Pass None to disable. Default is stderr.
333 File stream to log to.
334 :returns: (int) 0 if OK, else error.
338 In order to log into file, use
342 ctx = unbound.ub_ctx()
343 fw = fopen("debug.log")
347 Another option is to print the debug informations to stderr output
351 ctx = unbound.ub_ctx()
353 ctx.debugout(sys.stderr)
355 return _unbound.ub_ctx_debugout(self,out)
356 #parameters: struct ub_ctx *,void *,
359 def hosts(self,fname="/etc/hosts"):
360 """Read list of hosts from the filename given.
362 Usually "/etc/hosts". These addresses are not flagged as DNSSEC secure when queried for.
365 file name string. If None "/etc/hosts" is used.
366 :returns: (int) 0 if OK, else error.
368 return _unbound.ub_ctx_hosts(self,fname)
369 #parameters: struct ub_ctx *,char *,
372 def print_local_zones(self):
373 """Print the local zones and their content (RR data) to the debug output.
375 :returns: (int) 0 if OK, else error.
377 return _unbound.ub_ctx_print_local_zones(self)
378 #parameters: struct ub_ctx *,
381 def resolvconf(self,fname="/etc/resolv.conf"):
382 """Read list of nameservers to use from the filename given.
384 Usually "/etc/resolv.conf". Uses those nameservers as caching proxies. If they do not support DNSSEC, validation may fail.
386 Only nameservers are picked up, the searchdomain, ndots and other settings from resolv.conf(5) are ignored.
389 file name string. If None "/etc/resolv.conf" is used.
390 :returns: (int) 0 if OK, else error.
392 return _unbound.ub_ctx_resolvconf(self,fname)
393 #parameters: struct ub_ctx *,char *,
396 def set_async(self,dothread):
397 """Set a context behaviour for asynchronous action.
400 if True, enables threading and a call to :meth:`resolve_async` creates a thread to handle work in the background.
401 If False, a process is forked to handle work in the background.
402 Changes to this setting after :meth:`async` calls have been made have no effect (delete and re-create the context to change).
403 :returns: (int) 0 if OK, else error.
405 return _unbound.ub_ctx_async(self,dothread)
406 #parameters: struct ub_ctx *,int,
409 def set_fwd(self,addr):
410 """Set machine to forward DNS queries to, the caching resolver to use.
412 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.
414 To read the list of nameservers from /etc/resolv.conf (from DHCP or so), use the call :meth:`resolvconf`.
417 address, IP4 or IP6 in string format. If the addr is None, forwarding is disabled.
418 :returns: (int) 0 if OK, else error.
420 return _unbound.ub_ctx_set_fwd(self,addr)
421 #parameters: struct ub_ctx *,char *,
424 def set_option(self,opt,val):
425 """Set an option for the context.
427 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).
430 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.
433 :returns: (int) 0 if OK, else error.
435 return _unbound.ub_ctx_set_option(self,opt,val)
436 #parameters: struct ub_ctx *,char *,char *,
439 def trustedkeys(self,fname):
440 """Add trust anchors to the given context.
442 Pass the name of a bind-style config file with trusted-keys{}.
445 filename of file with bind-style config entries with trust anchors.
446 :returns: (int) 0 if OK, else error.
448 return _unbound.ub_ctx_trustedkeys(self,fname)
449 #parameters: struct ub_ctx *,char *,
453 def zone_print(self):
454 """Print local zones using debougout"""
455 _unbound.ub_ctx_print_local_zones(self)
457 def zone_add(self,zonename,zonetype):
458 """Add new local zone
460 :param zonename: zone domain name (e.g. myzone.)
461 :param zonetype: type of the zone ("static",...)
462 :returns: (int) 0 if OK, else error.
464 return _unbound.ub_ctx_zone_add(self,zonename, zonetype)
465 #parameters: struct ub_ctx *,char*, char*
468 def zone_remove(self,zonename):
471 If exists, removes local zone with all the RRs.
473 :param zonename: zone domain name
474 :returns: (int) 0 if OK, else error.
476 return _unbound.ub_ctx_zone_remove(self,zonename)
477 #parameters: struct ub_ctx *,char*
480 def data_add(self,rrdata):
481 """Add new local RR data
483 :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
484 :returns: (int) 0 if OK, else error.
491 >>> ctx = unbound.ub_ctx()
492 >>> ctx.zone_add("mydomain.net.","static")
494 >>> status = ctx.data_add("test.mydomain.net. IN A 192.168.1.1")
496 >>> status, result = ctx.resolve("test.mydomain.net")
497 >>> if status==0 and result.havedata:
498 >>> print \"Result:\",result.data.address_list
499 Result: ['192.168.1.1']
502 return _unbound.ub_ctx_data_add(self,rrdata)
503 #parameters: struct ub_ctx *,char*
506 def data_remove(self,rrdata):
507 """Remove local RR data
509 If exists, remove resource record from local zone
511 :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
512 :returns: (int) 0 if OK, else error.
514 return _unbound.ub_ctx_data_remove(self,rrdata)
515 #parameters: struct ub_ctx *,char*
519 def cancel(self,async_id):
520 """Cancel an async query in progress.
522 Its callback will not be called.
525 which query to cancel.
526 :returns: (int) 0 if OK, else error.
528 return _unbound.ub_cancel(self,async_id)
529 #parameters: struct ub_ctx *,int,
533 """Get file descriptor.
535 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.
537 :returns: (int) -1 on error, or file descriptor to use select(2) with.
539 return _unbound.ub_fd(self)
540 #parameters: struct ub_ctx *,
544 """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.
546 :returns: (int) 0 if nothing to read, or nonzero if a result is available. If nonzero, call ctx_process() to do callbacks.
548 return _unbound.ub_poll(self)
549 #parameters: struct ub_ctx *,
553 """Call this routine to continue processing results from the validating resolver (when the fd becomes readable).
555 Will perform necessary callbacks.
557 :returns: (int) 0 if OK, else error.
559 return _unbound.ub_process(self)
560 #parameters: struct ub_ctx *,
563 def resolve(self,name,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
564 """Perform resolution and validation of the target name.
567 domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
569 type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
571 class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
572 :returns: * (int) 0 if OK, else error.
573 * (: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).
575 if isinstance(name, bytes): #probably IDN
576 return _unbound.ub_resolve(self,name,rrtype,rrclass)
578 return _unbound.ub_resolve(self,idn2dname(name),rrtype,rrclass)
579 #parameters: struct ub_ctx *,char *,int,int,
580 #retvals: int,struct ub_result **
582 def resolve_async(self,name,mydata,callback,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
583 """Perform resolution and validation of the target name.
585 Asynchronous, after a while, the callback will be called with your data and the result.
586 If an error happens during processing, your callback will be called with error set to a nonzero value (and result==None).
589 domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
591 this data is your own data (you can pass arbitrary python object or None) which are passed on to the callback function.
593 call-back function which is called on completion of the resolution.
595 type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
597 class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
598 :returns: * (int) 0 if OK, else error.
599 * (int) async_id, an identifier number is returned for the query as it is in progress. It can be used to cancel the query.
601 **Call-back function:**
602 The call-back function looks as the follows::
604 def call_back(mydata, status, result):
608 * `mydata` - mydata object
609 * `status` - 0 when a result has been found
610 * `result` - the result structure. The result may be None, in that case err is set.
613 if isinstance(name, bytes): #probably IDN
614 return _unbound._ub_resolve_async(self,name,rrtype,rrclass,mydata,callback)
616 return _unbound._ub_resolve_async(self,idn2dname(name),rrtype,rrclass,mydata,callback)
617 #parameters: struct ub_ctx *,char *,int,int,void *,ub_callback_t,
621 """Wait for a context to finish with results.
623 Calls after the wait for you. After the wait, there are no more outstanding asynchronous queries.
625 :returns: (int) 0 if OK, else error.
627 return _unbound.ub_wait(self)
628 #parameters: struct ub_ctx *,
636 // ================================================================================
637 // ub_result - validation and resolution results
638 // ================================================================================
639 %nodefaultctor ub_result; //no default constructor & destructor
640 %nodefaultdtor ub_result;
642 %delobject ub_resolve_free;
643 %rename(_ub_resolve_free) ub_resolve_free;
646 void ub_resolve_free_dbg (struct ub_result* r) {
647 printf("******** UB_RESOLVE free 0x%lX ************\n", (long unsigned int)r);
652 %feature("docstring") ub_result "The validation and resolution results."
656 enum result_enum_rcode {
673 """Class which makes the resolution results accessible"""
674 def __init__(self, data):
675 """Creates ub_data class
676 :param data: a list of the result data in RAW format
679 raise Exception("ub_data init: No data")
683 """Represents data as string"""
684 return ';'.join([' '.join(map(lambda x:"%02X" % ord(x),a)) for a in self.data])
687 def dname2str(s, ofs=0, maxlen=0):
688 """Parses DNAME and produces a list of labels
690 :param ofs: where the conversion should start to parse data
691 :param maxlen: maximum length (0 means parse to the end)
692 :returns: list of labels (string)
700 slen = min(slen, maxlen)
704 complen = ord(s[idx])
705 # In python 3.x `str()` converts the string to unicode which is the expected text string type
706 res.append(str(s[idx+1:idx+1+complen].decode()))
711 def as_raw_data(self):
712 """Returns a list of RAW strings"""
715 raw = property(as_raw_data, doc="Returns RAW data (a list of binary encoded strings). See :meth:`as_raw_data`")
717 def as_mx_list(self):
718 """Represents data as a list of MX records (query for RR_TYPE_MX)
720 :returns: list of tuples (priority, dname)
722 return [(256*ord(rdf[0])+ord(rdf[1]),'.'.join([a for a in self.dname2str(rdf,2)])) for rdf in self.data]
724 mx_list = property(as_mx_list, doc="Returns a list of tuples containing priority and domain names. See :meth:`as_mx_list`")
726 def as_idn_mx_list(self):
727 """Represents data as a list of MX records (query for RR_TYPE_MX)
729 :returns: list of tuples (priority, unicode dname)
731 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]
733 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`")
735 def as_address_list(self):
736 """Represents data as a list of IP addresses (query for RR_TYPE_PTR)
738 :returns: list of strings
740 return ['.'.join(map(lambda x:str(ord(x)),a)) for a in self.data]
742 address_list = property(as_address_list, doc="Returns a list of IP addresses. See :meth:`as_address_list`")
744 def as_domain_list(self):
745 """Represents data as a list of domain names (query for RR_TYPE_A)
747 :returns: list of strings
749 return map(lambda x:'.'.join(self.dname2str(x)), self.data)
751 domain_list = property(as_domain_list, doc="Returns a list of domain names. See :meth:`as_domain_list`")
753 def as_idn_domain_list(self):
754 """Represents data as a list of unicode domain names (query for RR_TYPE_A)
756 :returns: list of strings
758 return map(lambda x: '.'.join([encodings.idna.ToUnicode(a) for a in self.dname2str(x)]), self.data)
760 domain_list_idn = property(as_idn_domain_list, doc="Returns a list of IDN domain names. See :meth:`as_idn_domain_list`")
768 PyObject* _ub_result_data(struct ub_result* result) {
772 if ((result == 0) || (!result->havedata) || (result->data == 0))
775 for (cnt=0,i=0;;i++,cnt++)
776 if (result->data[i] == 0)
779 list = PyList_New(cnt);
781 PyList_SetItem(list, i, PyBytes_FromStringAndSize(result->data[i],result->len[i]));
786 PyObject* _packet() {
787 return PyBytes_FromStringAndSize($self->answer_packet, $self->answer_len);
792 raise Exception("This class can't be created directly.")
794 #__swig_destroy__ = _unbound.ub_resolve_free_dbg
795 __swig_destroy__ = _unbound._ub_resolve_free
797 #havedata = property(_unbound.ub_result_havedata_get, _unbound.ub_result_havedata_set, "Havedata property")
799 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'}
801 def _get_rcode_str(self):
802 """Returns rcode in display representation form
806 return self.rcode2str[self.rcode]
808 __swig_getmethods__["rcode_str"] = _get_rcode_str
809 if _newclass:rcode_str = _swig_property(_get_rcode_str)
811 def _get_raw_data(self):
812 """Result data, a list of network order DNS rdata items.
814 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.
816 return self._ub_result_data(self)
818 __swig_getmethods__["rawdata"] = _get_raw_data
819 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.")
822 if not self.havedata: return None
823 return ub_data(self._ub_result_data(self))
825 __swig_getmethods__["data"] = _get_data
826 __swig_getmethods__["packet"] = _packet
827 data = property(_get_data, doc="Returns :class:`ub_data` instance containing various decoding functions or None")
833 %exception ub_resolve
835 //printf("resolve_start(%lX)\n",(long unsigned int)arg1);
836 Py_BEGIN_ALLOW_THREADS
839 //printf("resolve_stop()\n");
842 %include "libunbound/unbound.h"
845 //SWIG will see the ub_ctx as a class
850 //ub_ctx_debugout void* parameter correction
851 int ub_ctx_debugout(struct ub_ctx* ctx, FILE* out);
853 // ================================================================================
854 // ub_resolve_async - perform asynchronous resolution and validation
855 // ================================================================================
857 %typemap(in,numinputs=0,noblock=1) (int* async_id)
863 %apply PyObject* {void* mydata}
865 /* result generation */
866 %typemap(argout,noblock=1) (int* async_id)
868 if(1) { /* new code block for variable on stack */
870 tuple = PyTuple_New(2);
871 PyTuple_SetItem(tuple, 0, $result);
872 PyTuple_SetItem(tuple, 1, SWIG_From_int(asyncid));
877 // Grab a Python function object as a Python object.
878 %typemap(in) (PyObject *pyfunc) {
879 if (!PyCallable_Check($input))
881 PyErr_SetString(PyExc_TypeError, "Need a callable object!");
887 // Python callback workaround
888 int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, void* mydata, PyObject *pyfunc, int* async_id);
896 static void PythonCallBack(void* iddata, int status, struct ub_result* result)
901 id = (struct cb_data*) iddata;
902 arglist = Py_BuildValue("(OiO)",id->data,status, SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_ub_result, 0 | 0 )); // Build argument list
903 fresult = PyEval_CallObject(id->func,arglist); // Call Python
907 ub_resolve_free(result); //free ub_result
908 //ub_resolve_free_dbg(result); //free ub_result
909 Py_DECREF(arglist); // Trash arglist
913 int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, PyObject* mydata, PyObject *pyfunc, int* async_id) {
916 id = (struct cb_data*) malloc(sizeof(struct cb_data));
920 r = ub_resolve_async(ctx,name,rrtype,rrclass, (void *) id, PythonCallBack, async_id);
929 ub_resolve_async = _unbound._ub_resolve_async
932 """Reverse domain name
934 Usable for reverse lookups when the IP address should be reversed
936 return '.'.join([a for a in domain.split(".")][::-1])
938 def idn2dname(idnname):
939 """Converts domain name in IDN format to canonic domain name
941 :param idnname: (unicode string) IDN name
942 :returns: (string) domain name
944 return '.'.join([encodings.idna.ToASCII(a) for a in idnname.split('.')])
947 """Converts canonic domain name in IDN format to unicode string
949 :param name: (string) domain name
950 :returns: (unicode string) domain name
952 return '.'.join([encodings.idna.ToUnicode(a) for a in name.split('.')])