added unbound to external deps

1 files changed, 951 insertions, 0 deletions

diff --git a/external/unbound/libunbound/python/libunbound.i b/external/unbound/libunbound/python/libunbound.i
new file mode 100644
index 000000000..313c74862
--- /dev/null
+++ b/external/unbound/libunbound/python/libunbound.i
@@ -0,0 +1,951 @@
+/*
+ * libounbound.i: pyUnbound module (libunbound wrapper for Python)
+ * 
+ * Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
+ *                     Marek Vavrusa  (xvavru00 AT stud.fit.vutbr.cz)
+ *
+ * This software is open source.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *    * Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ * 
+ *    * Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ * 
+ *    * Neither the name of the organization nor the names of its
+ *      contributors may be used to endorse or promote products derived from this
+ *      software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+%module unbound
+%{
+   #include <sys/types.h>
+   #include <sys/socket.h>
+   #include <netinet/in.h>
+   #include <arpa/inet.h>
+   #include "libunbound/unbound.h"
+%}
+
+%pythoncode %{
+   import encodings.idna
+
+   # Ensure compatibility with older python versions
+   if 'bytes' not in vars():
+       bytes = str
+
+   def ord(s):
+       if isinstance(s, int):
+           return s
+       return __builtins__.ord(s)
+%}
+
+//%include "doc.i"
+%include "file.i"
+
+%feature("docstring") strerror "Convert error value to a human readable string."
+
+// ================================================================================
+// ub_resolve - perform resolution and validation
+// ================================================================================
+%typemap(in,numinputs=0,noblock=1) (struct ub_result** result)  
+{ 
+   struct ub_result* newubr;
+   $1 = &newubr;
+} 
+  
+/* result generation */
+%typemap(argout,noblock=1) (struct ub_result** result)
+{
+  if(1) { /* new code block for variable on stack */
+    PyObject* tuple;
+    tuple = PyTuple_New(2);
+    PyTuple_SetItem(tuple, 0, $result);
+    if (result == 0) {
+       PyTuple_SetItem(tuple, 1, SWIG_NewPointerObj(SWIG_as_voidptr(newubr), SWIGTYPE_p_ub_result, SWIG_POINTER_OWN |  0 ));
+    } else {
+       PyTuple_SetItem(tuple, 1, Py_None);
+    }
+    $result = tuple;
+  }
+}
+
+                       
+// ================================================================================
+// ub_ctx - validation context
+// ================================================================================
+%nodefaultctor ub_ctx; //no default constructor & destructor
+%nodefaultdtor ub_ctx;
+
+%newobject ub_ctx_create;
+%delobject ub_ctx_delete;
+%rename(_ub_ctx_delete) ub_ctx_delete;
+
+%newobject ub_resolve;
+
+%inline %{
+  void ub_ctx_free_dbg (struct ub_ctx* c) {
+    printf("******** UB_CTX free 0x%lX ************\n", (long unsigned int)c);
+    ub_ctx_delete(c);
+  }
+
+  //RR types
+  enum enum_rr_type
+  {
+    /**  a host address */
+    RR_TYPE_A = 1, 
+    /**  an authoritative name server */
+    RR_TYPE_NS = 2, 
+    /**  a mail destination (Obsolete - use MX) */
+    RR_TYPE_MD = 3, 
+    /**  a mail forwarder (Obsolete - use MX) */
+    RR_TYPE_MF = 4, 
+    /**  the canonical name for an alias */
+    RR_TYPE_CNAME = 5, 
+    /**  marks the start of a zone of authority */
+    RR_TYPE_SOA = 6, 
+    /**  a mailbox domain name (EXPERIMENTAL) */
+    RR_TYPE_MB = 7, 
+    /**  a mail group member (EXPERIMENTAL) */
+    RR_TYPE_MG = 8, 
+    /**  a mail rename domain name (EXPERIMENTAL) */
+    RR_TYPE_MR = 9, 
+    /**  a null RR (EXPERIMENTAL) */
+    RR_TYPE_NULL = 10,
+    /**  a well known service description */
+    RR_TYPE_WKS = 11,
+    /**  a domain name pointer */
+    RR_TYPE_PTR = 12,
+    /**  host information */
+    RR_TYPE_HINFO = 13,
+    /**  mailbox or mail list information */
+    RR_TYPE_MINFO = 14,
+    /**  mail exchange */
+    RR_TYPE_MX = 15,
+    /**  text strings */
+    RR_TYPE_TXT = 16,
+    /**  RFC1183 */
+    RR_TYPE_RP = 17,
+    /**  RFC1183 */
+    RR_TYPE_AFSDB = 18,
+    /**  RFC1183 */
+    RR_TYPE_X25 = 19,
+    /**  RFC1183 */
+    RR_TYPE_ISDN = 20,
+    /**  RFC1183 */
+    RR_TYPE_RT = 21,
+    /**  RFC1706 */
+    RR_TYPE_NSAP = 22,
+    /**  RFC1348 */
+    RR_TYPE_NSAP_PTR = 23,
+    /**  2535typecode */
+    RR_TYPE_SIG = 24,
+    /**  2535typecode */
+    RR_TYPE_KEY = 25,
+    /**  RFC2163 */
+    RR_TYPE_PX = 26,
+    /**  RFC1712 */
+    RR_TYPE_GPOS = 27,
+    /**  ipv6 address */
+    RR_TYPE_AAAA = 28,
+    /**  LOC record  RFC1876 */
+    RR_TYPE_LOC = 29,
+    /**  2535typecode */
+    RR_TYPE_NXT = 30,
+    /**  draft-ietf-nimrod-dns-01.txt */
+    RR_TYPE_EID = 31,
+    /**  draft-ietf-nimrod-dns-01.txt */
+    RR_TYPE_NIMLOC = 32,
+    /**  SRV record RFC2782 */
+    RR_TYPE_SRV = 33,
+    /**  http://www.jhsoft.com/rfc/af-saa-0069.000.rtf */
+    RR_TYPE_ATMA = 34,
+    /**  RFC2915 */
+    RR_TYPE_NAPTR = 35,
+    /**  RFC2230 */
+    RR_TYPE_KX = 36,
+    /**  RFC2538 */
+    RR_TYPE_CERT = 37,
+    /**  RFC2874 */
+    RR_TYPE_A6 = 38,
+    /**  RFC2672 */
+    RR_TYPE_DNAME = 39,
+    /**  dnsind-kitchen-sink-02.txt */
+    RR_TYPE_SINK = 40,
+    /**  Pseudo OPT record... */
+    RR_TYPE_OPT = 41,
+    /**  RFC3123 */
+    RR_TYPE_APL = 42,
+    /**  draft-ietf-dnsext-delegation */
+    RR_TYPE_DS = 43,
+    /**  SSH Key Fingerprint */
+    RR_TYPE_SSHFP = 44,
+    /**  draft-richardson-ipseckey-rr-11.txt */
+    RR_TYPE_IPSECKEY = 45,
+    /**  draft-ietf-dnsext-dnssec-25 */
+    RR_TYPE_RRSIG = 46,
+    RR_TYPE_NSEC = 47,      
+    RR_TYPE_DNSKEY = 48,
+    RR_TYPE_DHCID = 49,
+
+    RR_TYPE_NSEC3 = 50,
+    RR_TYPE_NSEC3PARAMS = 51,
+
+    RR_TYPE_UINFO = 100,
+    RR_TYPE_UID = 101,
+    RR_TYPE_GID = 102,
+    RR_TYPE_UNSPEC = 103,
+
+    RR_TYPE_TSIG = 250,
+    RR_TYPE_IXFR = 251,
+    RR_TYPE_AXFR = 252,
+    /**  A request for mailbox-related records (MB, MG or MR) */
+    RR_TYPE_MAILB = 253,
+    /**  A request for mail agent RRs (Obsolete - see MX) */
+    RR_TYPE_MAILA = 254,
+    /**  any type (wildcard) */
+    RR_TYPE_ANY = 255,
+
+    /* RFC 4431, 5074, DNSSEC Lookaside Validation */
+    RR_TYPE_DLV = 32769,
+  };
+
+  // RR classes
+  enum enum_rr_class
+  { 
+    /** the Internet */
+    RR_CLASS_IN = 1,
+    /** Chaos class */
+    RR_CLASS_CH = 3,
+    /** Hesiod (Dyer 87) */
+    RR_CLASS_HS = 4,
+    /** None class, dynamic update */
+    RR_CLASS_NONE = 254,
+    /** Any class */
+    RR_CLASS_ANY = 255,
+  };
+%} 
+
+%feature("docstring") ub_ctx "Unbound resolving and validation context. 
+
+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).
+
+**Usage**
+
+>>> import unbound
+>>> ctx = unbound.ub_ctx()
+>>> ctx.resolvconf(\"/etc/resolv.conf\")
+>>> status, result = ctx.resolve(\"www.google.com\", unbound.RR_TYPE_A, unbound.RR_CLASS_IN)
+>>> if status==0 and result.havedata:
+>>>    print \"Result:\",result.data.address_list
+Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
+"
+
+%extend ub_ctx
+{
+ %pythoncode %{
+        def __init__(self):
+            """Creates a resolving and validation context.
+               
+               An exception is invoked if the process of creation an ub_ctx instance fails.
+            """
+            self.this = _unbound.ub_ctx_create()
+            if not self.this:
+                raise Exception("Fatal error: unbound context initialization failed")
+
+        #__swig_destroy__ = _unbound.ub_ctx_free_dbg
+        __swig_destroy__ = _unbound._ub_ctx_delete
+
+        #UB_CTX_METHODS_#   
+        def add_ta(self,ta):
+            """Add a trust anchor to the given context.
+               
+               The trust anchor is a string, on one line, that holds a valid DNSKEY or DS RR.
+               
+               :param ta:
+                   string, with zone-format RR on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_add_ta(self,ta)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def add_ta_file(self,fname):
+            """Add trust anchors to the given context.
+               
+               Pass name of a file with DS and DNSKEY records (like from dig or drill).
+               
+               :param fname:
+                   filename of file with keyfile with trust anchors.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_add_ta_file(self,fname)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def config(self,fname):
+            """setup configuration for the given context.
+               
+               :param fname:
+                   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.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_config(self,fname)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def debuglevel(self,d):
+            """Set debug verbosity for the context Output is directed to stderr.
+               
+               :param d:
+                   debug level, 0 is off, 1 is very minimal, 2 is detailed, and 3 is lots.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_debuglevel(self,d)
+            #parameters: struct ub_ctx *,int,
+            #retvals: int
+
+        def debugout(self,out):
+            """Set debug output (and error output) to the specified stream.
+               
+               Pass None to disable. Default is stderr.
+               
+               :param out:
+                   File stream to log to.
+               :returns: (int) 0 if OK, else error.
+
+               **Usage:**
+
+                  In order to log into file, use
+
+                  ::
+
+                    ctx = unbound.ub_ctx()
+                    fw = fopen("debug.log")
+                    ctx.debuglevel(3)
+                    ctx.debugout(fw)
+
+                  Another option is to print the debug informations to stderr output
+
+                  ::
+
+                    ctx = unbound.ub_ctx()
+                    ctx.debuglevel(10)
+                    ctx.debugout(sys.stderr) 
+            """
+            return _unbound.ub_ctx_debugout(self,out)
+            #parameters: struct ub_ctx *,void *,
+            #retvals: int
+
+        def hosts(self,fname="/etc/hosts"):
+            """Read list of hosts from the filename given.
+               
+               Usually "/etc/hosts". These addresses are not flagged as DNSSEC secure when queried for.
+               
+               :param fname:
+                   file name string. If None "/etc/hosts" is used.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_hosts(self,fname)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def print_local_zones(self):
+            """Print the local zones and their content (RR data) to the debug output.
+               
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_print_local_zones(self)
+            #parameters: struct ub_ctx *,
+            #retvals: int
+
+        def resolvconf(self,fname="/etc/resolv.conf"):
+            """Read list of nameservers to use from the filename given.
+               
+               Usually "/etc/resolv.conf". Uses those nameservers as caching proxies. If they do not support DNSSEC, validation may fail.
+               
+               Only nameservers are picked up, the searchdomain, ndots and other settings from resolv.conf(5) are ignored.
+               
+               :param fname:
+                   file name string. If None "/etc/resolv.conf" is used.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_resolvconf(self,fname)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def set_async(self,dothread):
+            """Set a context behaviour for asynchronous action.
+               
+               :param dothread:
+                   if True, enables threading and a call to :meth:`resolve_async` creates a thread to handle work in the background. 
+                   If False, a process is forked to handle work in the background. 
+                   Changes to this setting after :meth:`async` calls have been made have no effect (delete and re-create the context to change).
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_async(self,dothread)
+            #parameters: struct ub_ctx *,int,
+            #retvals: int
+
+        def set_fwd(self,addr):
+            """Set machine to forward DNS queries to, the caching resolver to use.
+               
+               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.
+               
+               To read the list of nameservers from /etc/resolv.conf (from DHCP or so), use the call :meth:`resolvconf`.
+               
+               :param addr:
+                   address, IP4 or IP6 in string format. If the addr is None, forwarding is disabled.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_set_fwd(self,addr)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+
+        def set_option(self,opt,val):
+            """Set an option for the context.
+
+               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).
+               
+               :param opt:
+                   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.
+               :param val:
+                   value of the option.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_set_option(self,opt,val)
+            #parameters: struct ub_ctx *,char *,char *,
+            #retvals: int
+
+        def trustedkeys(self,fname):
+            """Add trust anchors to the given context.
+               
+               Pass the name of a bind-style config file with trusted-keys{}.
+               
+               :param fname:
+                   filename of file with bind-style config entries with trust anchors.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_ctx_trustedkeys(self,fname)
+            #parameters: struct ub_ctx *,char *,
+            #retvals: int
+        #_UB_CTX_METHODS#   
+        
+        def zone_print(self):
+            """Print local zones using debougout"""            
+            _unbound.ub_ctx_print_local_zones(self)
+
+        def zone_add(self,zonename,zonetype):
+            """Add new local zone
+
+               :param zonename: zone domain name (e.g. myzone.)
+               :param zonetype: type of the zone ("static",...) 
+               :returns: (int) 0 if OK, else error. 
+            """ 
+            return _unbound.ub_ctx_zone_add(self,zonename, zonetype)
+            #parameters: struct ub_ctx *,char*, char*
+            #retvals: int
+
+        def zone_remove(self,zonename):
+            """Remove local zone
+            
+               If exists, removes local zone with all the RRs.
+
+               :param zonename: zone domain name
+               :returns: (int) 0 if OK, else error. 
+            """ 
+            return _unbound.ub_ctx_zone_remove(self,zonename)
+            #parameters: struct ub_ctx *,char*
+            #retvals: int
+
+        def data_add(self,rrdata):
+            """Add new local RR data
+
+               :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
+               :returns: (int) 0 if OK, else error. 
+
+               **Usage**
+                  The local data ...
+
+                  ::
+
+                    >>> ctx = unbound.ub_ctx()
+                    >>> ctx.zone_add("mydomain.net.","static")
+                    0
+                    >>> status = ctx.data_add("test.mydomain.net. IN A 192.168.1.1")
+                    0
+                    >>> status, result = ctx.resolve("test.mydomain.net")
+                    >>> if status==0 and result.havedata:
+                    >>>    print \"Result:\",result.data.address_list
+                    Result: ['192.168.1.1']
+
+            """ 
+            return _unbound.ub_ctx_data_add(self,rrdata)
+            #parameters: struct ub_ctx *,char*
+            #retvals: int
+
+        def data_remove(self,rrdata):
+            """Remove local RR data
+
+               If exists, remove resource record from local zone
+
+               :param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
+               :returns: (int) 0 if OK, else error. 
+            """ 
+            return _unbound.ub_ctx_data_remove(self,rrdata)
+            #parameters: struct ub_ctx *,char*
+            #retvals: int
+
+        #UB_METHODS_#
+        def cancel(self,async_id):
+            """Cancel an async query in progress.
+               
+               Its callback will not be called.
+               
+               :param async_id:
+                   which query to cancel.
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_cancel(self,async_id)
+            #parameters: struct ub_ctx *,int,
+            #retvals: int
+
+        def get_fd(self):
+            """Get file descriptor.
+               
+               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.
+               
+               :returns: (int) -1 on error, or file descriptor to use select(2) with.
+            """
+            return _unbound.ub_fd(self)
+            #parameters: struct ub_ctx *,
+            #retvals: int
+
+        def poll(self):
+            """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.
+               
+               :returns: (int) 0 if nothing to read, or nonzero if a result is available. If nonzero, call ctx_process() to do callbacks.
+            """
+            return _unbound.ub_poll(self)
+            #parameters: struct ub_ctx *,
+            #retvals: int
+
+        def process(self):
+            """Call this routine to continue processing results from the validating resolver (when the fd becomes readable).
+               
+               Will perform necessary callbacks.
+               
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_process(self)
+            #parameters: struct ub_ctx *,
+            #retvals: int
+
+        def resolve(self,name,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
+            """Perform resolution and validation of the target name. 
+               
+               :param name:
+                   domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
+               :param rrtype:
+                   type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
+               :param rrclass:
+                   class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
+               :returns: * (int) 0 if OK, else error.
+                         * (: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).
+            """
+            if isinstance(name, bytes): #probably IDN
+                return _unbound.ub_resolve(self,name,rrtype,rrclass)
+            else:
+                return _unbound.ub_resolve(self,idn2dname(name),rrtype,rrclass)
+            #parameters: struct ub_ctx *,char *,int,int,
+            #retvals: int,struct ub_result **
+
+        def resolve_async(self,name,mydata,callback,rrtype=RR_TYPE_A,rrclass=RR_CLASS_IN):
+            """Perform resolution and validation of the target name.
+               
+               Asynchronous, after a while, the callback will be called with your data and the result. 
+               If an error happens during processing, your callback will be called with error set to a nonzero value (and result==None).
+               
+               :param name:
+                   domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
+               :param mydata:
+                   this data is your own data (you can pass arbitrary python object or None) which are passed on to the callback function.
+               :param callback:
+                   call-back function which is called on completion of the resolution. 
+               :param rrtype:
+                   type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
+               :param rrclass:
+                   class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
+               :returns: * (int) 0 if OK, else error.
+                         * (int) async_id, an identifier number is returned for the query as it is in progress. It can be used to cancel the query.
+
+               **Call-back function:**
+                    The call-back function looks as the follows::
+                    
+                        def call_back(mydata, status, result):
+                            pass
+
+                    **Parameters:** 
+                        * `mydata` - mydata object
+                        * `status` - 0 when a result has been found
+                        * `result` - the result structure. The result may be None, in that case err is set.
+
+            """
+            if isinstance(name, bytes): #probably IDN
+                return _unbound._ub_resolve_async(self,name,rrtype,rrclass,mydata,callback)
+            else:
+                return _unbound._ub_resolve_async(self,idn2dname(name),rrtype,rrclass,mydata,callback)
+            #parameters: struct ub_ctx *,char *,int,int,void *,ub_callback_t,
+            #retvals: int, int
+
+        def wait(self):
+            """Wait for a context to finish with results.
+               
+               Calls  after the wait for you. After the wait, there are no more outstanding asynchronous queries.
+               
+               :returns: (int) 0 if OK, else error.
+            """
+            return _unbound.ub_wait(self)
+            #parameters: struct ub_ctx *,
+            #retvals: int
+
+        #_UB_METHODS#
+ %}
+}
+
+
+// ================================================================================
+// ub_result - validation and resolution results
+// ================================================================================
+%nodefaultctor ub_result; //no default constructor & destructor
+%nodefaultdtor ub_result;
+
+%delobject ub_resolve_free;
+%rename(_ub_resolve_free) ub_resolve_free;
+ 
+%inline %{
+  void ub_resolve_free_dbg (struct ub_result* r) {
+    printf("******** UB_RESOLVE free 0x%lX ************\n", (long unsigned int)r);
+    ub_resolve_free(r);
+  }
+%} 
+
+%feature("docstring") ub_result "The validation and resolution results."
+
+//ub_result.rcode
+%inline %{
+  enum result_enum_rcode {
+    RCODE_NOERROR = 0,
+    RCODE_FORMERR = 1,
+    RCODE_SERVFAIL = 2,
+    RCODE_NXDOMAIN = 3,
+    RCODE_NOTIMPL = 4,
+    RCODE_REFUSED = 5,
+    RCODE_YXDOMAIN = 6,
+    RCODE_YXRRSET = 7,
+    RCODE_NXRRSET = 8,
+    RCODE_NOTAUTH = 9,
+    RCODE_NOTZONE = 10
+  };
+%}
+
+%pythoncode %{
+   class ub_data:
+      """Class which makes the resolution results accessible"""
+      def __init__(self, data):
+         """Creates ub_data class
+            :param data: a list of the result data in RAW format
+         """
+         if data == None:
+            raise Exception("ub_data init: No data")
+         self.data = data
+
+      def __str__(self):
+         """Represents data as string"""
+         return ';'.join([' '.join(map(lambda x:"%02X" % ord(x),a)) for a in self.data])
+
+      @staticmethod
+      def dname2str(s, ofs=0, maxlen=0):
+         """Parses DNAME and produces a list of labels
+        
+            :param ofs: where the conversion should start to parse data
+            :param maxlen: maximum length (0 means parse to the end)
+            :returns: list of labels (string)
+         """
+         if not s:
+            return []
+
+         res = []
+         slen = len(s)
+         if maxlen > 0:
+            slen = min(slen, maxlen)
+
+         idx = ofs
+         while (idx < slen):
+            complen = ord(s[idx])
+            # In python 3.x `str()` converts the string to unicode which is the expected text string type
+            res.append(str(s[idx+1:idx+1+complen]))
+            idx += complen + 1
+
+         return res
+
+      def as_raw_data(self):
+         """Returns a list of RAW strings"""
+         return self.data
+
+      raw = property(as_raw_data, doc="Returns RAW data (a list of binary encoded strings). See :meth:`as_raw_data`")
+
+      def as_mx_list(self):
+         """Represents data as a list of MX records (query for RR_TYPE_MX)
+        
+            :returns: list of tuples (priority, dname)
+         """
+         return [(256*ord(rdf[0])+ord(rdf[1]),'.'.join([a for a in self.dname2str(rdf,2)])) for rdf in self.data]
+      
+      mx_list = property(as_mx_list, doc="Returns a list of tuples containing priority and domain names. See :meth:`as_mx_list`")
+
+      def as_idn_mx_list(self):
+         """Represents data as a list of MX records (query for RR_TYPE_MX)
+        
+            :returns: list of tuples (priority, unicode dname)
+         """
+         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]
+
+      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`")
+
+      def as_address_list(self):
+         """Represents data as a list of IP addresses (query for RR_TYPE_PTR)
+        
+            :returns: list of strings
+         """
+         return ['.'.join(map(lambda x:str(ord(x)),a)) for a in self.data]
+
+      address_list = property(as_address_list, doc="Returns a list of IP addresses. See :meth:`as_address_list`")
+
+      def as_domain_list(self):
+         """Represents data as a list of domain names (query for RR_TYPE_A)
+
+            :returns: list of strings
+         """
+         return map(lambda x:'.'.join(self.dname2str(x)), self.data)
+
+      domain_list = property(as_domain_list, doc="Returns a list of domain names. See :meth:`as_domain_list`")
+
+      def as_idn_domain_list(self):
+         """Represents data as a list of unicode domain names (query for RR_TYPE_A)
+
+            :returns: list of strings
+         """
+         return map(lambda x: '.'.join([encodings.idna.ToUnicode(a) for a in self.dname2str(x)]), self.data)
+
+      domain_list_idn = property(as_idn_domain_list, doc="Returns a list of IDN domain names. See :meth:`as_idn_domain_list`")
+%}
+        
+%extend ub_result
+{
+
+  %rename(_data) data;
+  
+  PyObject* _ub_result_data(struct ub_result* result) {
+    PyObject  *list;
+     int i,cnt;
+     (void)self;
+     if ((result == 0) || (!result->havedata) || (result->data == 0))
+        return Py_None;
+
+     for (cnt=0,i=0;;i++,cnt++) 
+         if (result->data[i] == 0)
+            break;
+     
+     list = PyList_New(cnt);
+     for (i=0;i<cnt;i++) 
+         PyList_SetItem(list, i, PyBytes_FromStringAndSize(result->data[i],result->len[i]));
+     
+     return list;
+  }
+
+  PyObject* _packet() {
+      return PyBytes_FromStringAndSize($self->answer_packet, $self->answer_len);
+  }
+  
+ %pythoncode %{
+   def __init__(self):
+       raise Exception("This class can't be created directly.")
+
+   #__swig_destroy__ = _unbound.ub_resolve_free_dbg
+   __swig_destroy__ = _unbound._ub_resolve_free
+
+   #havedata = property(_unbound.ub_result_havedata_get, _unbound.ub_result_havedata_set, "Havedata property")
+
+   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'}
+
+   def _get_rcode_str(self):
+       """Returns rcode in display representation form
+
+          :returns: string
+       """
+       return self.rcode2str[self.rcode]
+
+   __swig_getmethods__["rcode_str"] = _get_rcode_str
+   if _newclass:rcode_str = _swig_property(_get_rcode_str)
+
+   def _get_raw_data(self):
+       """Result data, a list of network order DNS rdata items. 
+
+          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.
+       """
+       return self._ub_result_data(self)
+
+   __swig_getmethods__["rawdata"] = _get_raw_data
+   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.")
+
+   def _get_data(self):
+       if not self.havedata: return None
+       return ub_data(self._ub_result_data(self))
+  
+   __swig_getmethods__["data"] = _get_data
+   __swig_getmethods__["packet"] = _packet
+   data = property(_get_data, doc="Returns :class:`ub_data` instance containing various decoding functions or None")
+
+%}
+             
+}
+
+%exception ub_resolve
+%{ 
+  //printf("resolve_start(%lX)\n",(long unsigned int)arg1);
+  Py_BEGIN_ALLOW_THREADS 
+  $function 
+  Py_END_ALLOW_THREADS 
+  //printf("resolve_stop()\n");
+%} 
+
+%include "libunbound/unbound.h"
+
+%inline %{
+  //SWIG will see the ub_ctx as a class
+  struct ub_ctx {
+  };
+%}
+
+//ub_ctx_debugout void* parameter correction
+int ub_ctx_debugout(struct ub_ctx* ctx, FILE* out);
+
+// ================================================================================
+// ub_resolve_async - perform asynchronous resolution and validation
+// ================================================================================
+
+%typemap(in,numinputs=0,noblock=1) (int* async_id)  
+{ 
+   int asyncid = -1;
+   $1 = &asyncid;
+} 
+
+%apply PyObject* {void* mydata}
+       
+/* result generation */
+%typemap(argout,noblock=1) (int* async_id)
+{
+  if(1) { /* new code block for variable on stack */
+    PyObject* tuple;
+    tuple = PyTuple_New(2);
+    PyTuple_SetItem(tuple, 0, $result);
+    PyTuple_SetItem(tuple, 1, SWIG_From_int(asyncid));
+    $result = tuple;
+  }
+}
+
+// Grab a Python function object as a Python object.
+%typemap(in) (PyObject *pyfunc) {
+  if (!PyCallable_Check($input)) 
+  {
+     PyErr_SetString(PyExc_TypeError, "Need a callable object!");
+     return NULL;
+  }
+  $1 = $input;
+}
+   
+// Python callback workaround
+int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, void* mydata, PyObject *pyfunc, int* async_id);
+
+%{
+   struct cb_data {
+      PyObject* data;
+      PyObject* func;
+   };
+
+   static void PythonCallBack(void* iddata, int status, struct ub_result* result)
+   {
+      PyObject *arglist;
+      PyObject *fresult;
+      struct cb_data* id;
+      id = (struct cb_data*) iddata;
+      arglist = Py_BuildValue("(OiO)",id->data,status, SWIG_NewPointerObj(SWIG_as_voidptr(result), SWIGTYPE_p_ub_result, 0 |  0 ));   // Build argument list
+      fresult = PyEval_CallObject(id->func,arglist);     // Call Python
+      Py_DECREF(id->func);
+      Py_DECREF(id->data);
+      free(id);
+      ub_resolve_free(result);                  //free ub_result
+      //ub_resolve_free_dbg(result);                  //free ub_result
+      Py_DECREF(arglist);                           // Trash arglist
+      Py_XDECREF(fresult);
+   }
+
+   int _ub_resolve_async(struct ub_ctx* ctx, char* name, int rrtype, int rrclass, PyObject* mydata, PyObject *pyfunc, int* async_id) {
+      int r;
+      struct cb_data* id;
+      id = (struct cb_data*) malloc(sizeof(struct cb_data));
+      id->data = mydata;
+      id->func = pyfunc;
+   
+      r = ub_resolve_async(ctx,name,rrtype,rrclass, (void *) id, PythonCallBack, async_id);
+      Py_INCREF(mydata);
+      Py_INCREF(pyfunc);
+      return r;
+   }
+
+%}
+
+%pythoncode %{
+    ub_resolve_async = _unbound._ub_resolve_async
+
+    def reverse(domain):
+        """Reverse domain name
+        
+           Usable for reverse lookups when the IP address should be reversed
+        """
+        return '.'.join([a for a in domain.split(".")][::-1])
+
+    def idn2dname(idnname):
+        """Converts domain name in IDN format to canonic domain name
+
+           :param idnname: (unicode string) IDN name
+           :returns: (string) domain name
+        """
+        return '.'.join([encodings.idna.ToASCII(a) for a in idnname.split('.')])
+
+    def dname2idn(name):
+        """Converts canonic domain name in IDN format to unicode string
+
+            :param name: (string) domain name
+            :returns: (unicode string) domain name
+        """
+        return '.'.join([encodings.idna.ToUnicode(a) for a in name.split('.')])
+
+%}
+