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diff --git a/contrib/unbound/libunbound/worker.h b/contrib/unbound/libunbound/worker.h
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+/*
+ * libunbound/worker.h - prototypes for worker methods.
+ *
+ * Copyright (c) 2007, NLnet Labs. All rights reserved.
+ *
+ * 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 NLNET LABS 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.
+ */
+
+/**
+ * \file
+ *
+ * This file declares the methods any worker has to implement.
+ */
+
+#ifndef LIBUNBOUND_WORKER_H
+#define LIBUNBOUND_WORKER_H
+
+/**
+ * Worker signal handler function. User argument is the worker itself.
+ * @param sig: signal number.
+ * @param arg: the worker (main worker) that handles signals.
+ */
+void worker_sighandler(int sig, void* arg);
+
+/**
+ * Worker service routine to send serviced queries to authoritative servers.
+ * @param qname: query name. (host order)
+ * @param qnamelen: length in bytes of qname, including trailing 0.
+ * @param qtype: query type. (host order)
+ * @param qclass: query class. (host order)
+ * @param flags: host order flags word, with opcode and CD bit.
+ * @param dnssec: if set, EDNS record will have DO bit set.
+ * @param want_dnssec: signatures needed.
+ * @param addr: where to.
+ * @param addrlen: length of addr.
+ * @param zone: wireformat dname of the zone.
+ * @param zonelen: length of zone name.
+ * @param q: wich query state to reactivate upon return.
+ * @return: false on failure (memory or socket related). no query was
+ *      sent.
+ */
+struct outbound_entry* worker_send_query(uint8_t* qname, size_t qnamelen, 
+	uint16_t qtype, uint16_t qclass, uint16_t flags, int dnssec, 
+	int want_dnssec, struct sockaddr_storage* addr, socklen_t addrlen,
+	uint8_t* zone, size_t zonelen, struct module_qstate* q);
+
+/** 
+ * process control messages from the main thread. Frees the control 
+ * command message.
+ * @param tube: tube control message came on.
+ * @param msg: message contents.  Is freed.
+ * @param len: length of message.
+ * @param error: if error (NETEVENT_*) happened.
+ * @param arg: user argument
+ */
+void worker_handle_control_cmd(struct tube* tube, uint8_t* msg, size_t len,
+	int error, void* arg);
+
+/** handles callbacks from listening event interface */
+int worker_handle_request(struct comm_point* c, void* arg, int error,
+	struct comm_reply* repinfo);
+
+/** process incoming replies from the network */
+int worker_handle_reply(struct comm_point* c, void* arg, int error, 
+	struct comm_reply* reply_info);
+
+/** process incoming serviced query replies from the network */
+int worker_handle_service_reply(struct comm_point* c, void* arg, int error, 
+	struct comm_reply* reply_info);
+
+/** cleanup the cache to remove all rrset IDs from it, arg is worker */
+void worker_alloc_cleanup(void* arg);
+
+/** statistics timer callback handler */
+void worker_stat_timer_cb(void* arg);
+
+/** probe timer callback handler */
+void worker_probe_timer_cb(void* arg);
+
+/** start accept callback handler */
+void worker_start_accept(void* arg);
+
+/** stop accept callback handler */
+void worker_stop_accept(void* arg);
+
+/** handle remote control accept callbacks */
+int remote_accept_callback(struct comm_point*, void*, int, struct comm_reply*);
+
+/** handle remote control data callbacks */
+int remote_control_callback(struct comm_point*, void*, int, struct comm_reply*);
+
+/** routine to printout option values over SSL */
+void  remote_get_opt_ssl(char* line, void* arg);
+
+#endif /* LIBUNBOUND_WORKER_H */