ObjFW  Diff

	/* Random, unused ID */
	do {
		ID = [OFNumber numberWithUInt16: (uint16_t)of_random()];
	} while ([_queries objectForKey: ID] != nil);

	if (query.domainName.UTF8StringLength > 253)
		@throw [OFOutOfRangeException exception];

	if (_settings->_nameServers.count == 0) {
		id exception = [OFDNSQueryFailedException
		    exceptionWithQuery: query
				 error: OF_DNS_RESOLVER_ERROR_NO_NAME_SERVER];
		[delegate  resolver: self
		    didPerformQuery: query
			   response: nil
			  exception: exception];
		return;
	}

	context = [[[OFDNSResolverContext alloc]
	    initWithQuery: query
		       ID: ID
		 settings: _settings
		 delegate: delegate] autorelease];
	[self of_sendQueryForContext: context

				     length: BUFFER_LENGTH];
#endif

	exception = [OFDNSQueryFailedException
	    exceptionWithQuery: context->_query
			 error: OF_DNS_RESOLVER_ERROR_TIMEOUT];

	if ([context->_delegate respondsToSelector:
	    @selector(resolver:didPerformQuery:response:exception:)])
		[context->_delegate resolver: self
			     didPerformQuery: context->_query
				    response: nil
				   exception: exception];
	[context->_delegate resolver: self
		     didPerformQuery: context->_query
			    response: nil
			   exception: exception];
}

- (bool)of_handleResponseBuffer: (unsigned char *)buffer
			 length: (size_t)length
			 sender: (const of_socket_address_t *)sender
{
	OFDictionary *answerRecords = nil, *authorityRecords = nil;

	} @catch (id e) {
		exception = e;
	}

	if (exception != nil)
		response = nil;

	if ([context->_delegate respondsToSelector:
	    @selector(resolver:didPerformQuery:response:exception:)])
		[context->_delegate resolver: self
			     didPerformQuery: context->_query
				    response: response
				   exception: exception];
	[context->_delegate resolver: self
		     didPerformQuery: context->_query
			    response: response
			   exception: exception];

	return false;
}

-	  (bool)socket: (OFDatagramSocket *)sock
  didReceiveIntoBuffer: (void *)buffer
		length: (size_t)length

	while ((context = [enumerator nextObject]) != nil) {
		OFDNSQueryFailedException *exception;

		exception = [OFDNSQueryFailedException
		    exceptionWithQuery: context->_query
				 error: OF_DNS_RESOLVER_ERROR_CANCELED];

		if ([context->_delegate respondsToSelector:
		    @selector(resolver:didPerformQuery:response:exception:)])
			[context->_delegate resolver: self
				     didPerformQuery: context->_query
					    response: nil
					   exception: exception];
		[context->_delegate resolver: self
			     didPerformQuery: context->_query
				    response: nil
				   exception: exception];
	}

	[_queries removeAllObjects];

	objc_autoreleasePoolPop(pool);
}
@end