Cleaned out some dead code

Author: MelindaShore

pygetdns.h

@@ -149,9 +149,6 @@ struct getdns_dict *extensions_to_getdnsdict(PyDictObject *);
 PyObject *decode_getdns_response(struct getdns_dict *);
 PyObject *decode_getdns_replies_tree_response(struct getdns_dict *response);
 PyObject *getFullResponse(struct getdns_dict *dict);
-char *reverse_address(struct getdns_bindata *address_data);
-PyObject *context_fd(PyObject *self, PyObject *args, PyObject *keywds);
-PyObject *context_get_num_pending_requests(PyObject *self, PyObject *args, PyObject *keywds);
-PyObject *context_process_async(PyObject *self, PyObject *args, PyObject *keywds);
 getdns_dict *getdnsify_addressdict(PyObject *pydict);
+
 #endif /* PYGETDNS_H */

pygetdns_util.c

@@ -118,7 +118,7 @@ extensions_to_getdnsdict(PyDictObject *pydict)
     struct getdns_bindata *option_data;
     struct getdns_dict *tmpoptions_list_dict; /* a dict to hold add_opt_parameters[options] stuff */
 
-    if (!PyDict_Check(pydict))  {
+    if ((!pydict) || (!PyDict_Check(pydict)))  {
         PyErr_SetString(getdns_error, "Expected dict, didn't get one");
         return NULL;
     }
@@ -633,39 +633,6 @@ void error_exit(char* msg, getdns_return_t ret)
 
 
 
-/**
- * reverse an IP address for PTR lookup
- * @param address_data IP address to reverse
- * @return NULL on allocation failure
- * @return reversed string on success, caller must free storage via call to free()
- */
-char *
-reverse_address(struct getdns_bindata *address_data)
-{
-    ldns_rdf *addr_rdf;
-    ldns_rdf *rev_rdf;
-    char *rev_str;
-
-    if (address_data->size == 4)
-        addr_rdf = ldns_rdf_new(LDNS_RDF_TYPE_A, 4, address_data->data);
-    else if (address_data->size == 16)
-        addr_rdf = ldns_rdf_new(LDNS_RDF_TYPE_AAAA, 16, address_data->data);
-    else
-        return NULL;
-    if (!addr_rdf)
-        return NULL;
-
-    rev_rdf = ldns_rdf_address_reverse(addr_rdf);
-    ldns_rdf_free(addr_rdf);
-    if (!rev_rdf)
-        return NULL;
-
-    rev_str = ldns_rdf2str(rev_rdf);
-    ldns_rdf_deep_free(rev_rdf);
-    return rev_str;
-}
-
-
 // Code to display the entire response.
 // answer_type
 // canonical_name