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diff --git a/pjlib-util/include/pjlib-util/dns_server.h b/pjlib-util/include/pjlib-util/dns_server.h
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+++ b/pjlib-util/include/pjlib-util/dns_server.h
@@ -0,0 +1,116 @@
+/* $Id$ */
+/* 
+ * Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
+ */
+#ifndef __PJLIB_UTIL_DNS_SERVER_H__
+#define __PJLIB_UTIL_DNS_SERVER_H__
+
+/**
+ * @file dns_server.h
+ * @brief Simple DNS server
+ */
+#include <pjlib-util/types.h>
+#include <pjlib-util/dns.h>
+
+PJ_BEGIN_DECL
+
+/**
+ * @defgroup PJ_DNS_SERVER Simple DNS Server
+ * @ingroup PJLIB_UTIL
+ * @{
+ * This contains a simple but fully working DNS server implementation, 
+ * mostly for testing purposes. It supports serving various DNS resource 
+ * records such as SRV, CNAME, A, and AAAA.
+ */
+
+/**
+ * Opaque structure to hold DNS server instance.
+ */
+typedef struct pj_dns_server pj_dns_server;
+
+/**
+ * Create the DNS server instance. The instance will run immediately.
+ *
+ * @param pf	    The pool factory to create memory pools.
+ * @param ioqueue   Ioqueue instance where the server socket will be
+ *		    registered to.
+ * @param af	    Address family of the server socket (valid values
+ *		    are pj_AF_INET() for IPv4 and pj_AF_INET6() for IPv6).
+ * @param port	    The UDP port to listen.
+ * @param flags	    Flags, currently must be zero.
+ * @param p_srv	    Pointer to receive the DNS server instance.
+ *
+ * @return	    PJ_SUCCESS if server has been created successfully,
+ *		    otherwise the function will return the appropriate
+ *		    error code.
+ */
+PJ_DECL(pj_status_t) pj_dns_server_create(pj_pool_factory *pf,
+				          pj_ioqueue_t *ioqueue,
+					  int af,
+					  unsigned port,
+					  unsigned flags,
+				          pj_dns_server **p_srv);
+
+/**
+ * Destroy DNS server instance.
+ *
+ * @param srv	    The DNS server instance.
+ *
+ * @return	    PJ_SUCCESS on success or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_dns_server_destroy(pj_dns_server *srv);
+
+
+/**
+ * Add generic resource record entries to the server.
+ *
+ * @param srv	    The DNS server instance.
+ * @param count	    Number of records to be added.
+ * @param rr	    Array of records to be added.
+ *
+ * @return	    PJ_SUCCESS on success or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_dns_server_add_rec(pj_dns_server *srv,
+					   unsigned count,
+					   const pj_dns_parsed_rr rr[]);
+
+/**
+ * Remove the specified record from the server.
+ *
+ * @param srv	    The DNS server instance.
+ * @param dns_class The resource's DNS class. Valid value is PJ_DNS_CLASS_IN.
+ * @param type	    The resource type.
+ * @param name	    The resource name to be removed.
+ *
+ * @return	    PJ_SUCCESS on success or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_dns_server_del_rec(pj_dns_server *srv,
+					   int dns_class,
+					   pj_dns_type type,
+					   const pj_str_t *name);
+
+
+
+/**
+ * @}
+ */
+
+PJ_END_DECL
+
+
+#endif	/* __PJLIB_UTIL_DNS_SERVER_H__ */
+