diff --git a/CHANGES b/CHANGES
index b500a33e04..11694dfa84 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,28 @@
+4077.	[test]		Add static-stub regression test for DS NXDOMAIN
+			return making the static stub disappear. [RT #38564]
+
+4076.	[bug]		Named could crash on shutdown with outstanding
+			reload / reconfig events. [RT #38622]
+
+4075.	[bug]		Increase nsupdate's input buffer to accomodate
+			very large RRs. [RT #38689]
+
+4074.	[cleanup]	Cleaned up more warnings from gcc -Wshadow. [RT #38708]
+
+4073.	[cleanup]	Add libjson-c version number reporting to
+			"named -V"; normalize version number formatting.
+			[RT #38056]
+
+4072.	[func]		Add a --enable-querytrace configure switch for
+			very verbose query tracelogging. [RT #37520]
+
+4070.	[bug]		Fix a segfault in nslookup in a query such as
+			"nslookup isc.org AMS.SNS-PB.ISC.ORG -all".
+			[RT #38548]
+
+4069.	[doc]		Reorganize options in the nsupdate man page.
+			[RT #38515]
+
 4067.	[cleanup]	Reduce noise from RRL when query logging is
 			disabled. [RT #38648]
 
diff --git a/bin/dig/dig.docbook b/bin/dig/dig.docbook
index 52caab0f4a..b05d5d353b 100644
--- a/bin/dig/dig.docbook
+++ b/bin/dig/dig.docbook
@@ -2,7 +2,7 @@
 	       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 	       [<!ENTITY mdash "&#8212;">]>
 <!--
- - Copyright (C) 2004-2011, 2013, 2014  Internet Systems Consortium, Inc. ("ISC")
+ - Copyright (C) 2004-2011, 2013-2015  Internet Systems Consortium, Inc. ("ISC")
  - Copyright (C) 2000-2003  Internet Software Consortium.
  -
  - Permission to use, copy, modify, and/or distribute this software for any
@@ -47,6 +47,7 @@
       <year>2011</year>
       <year>2013</year>
       <year>2014</year>
+      <year>2015</year>
       <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
     </copyright>
     <copyright>
diff --git a/bin/dig/dighost.c b/bin/dig/dighost.c
index d6fea27bef..32c1d5dda2 100644
--- a/bin/dig/dighost.c
+++ b/bin/dig/dighost.c
@@ -3682,10 +3682,14 @@ isc_result_t
 get_address(char *host, in_port_t myport, isc_sockaddr_t *sockaddr) {
 	int count;
 	isc_result_t result;
+	isc_boolean_t is_running;
 
-	isc_app_block();
+	is_running = isc_app_isrunning();
+	if (is_running)
+		isc_app_block();
 	result = bind9_getaddresses(host, myport, sockaddr, 1, &count);
-	isc_app_unblock();
+	if (is_running)
+		isc_app_unblock();
 	if (result != ISC_R_SUCCESS)
 		return (result);
 
diff --git a/bin/dig/nslookup.c b/bin/dig/nslookup.c
index d3237fa5dc..30591dc556 100644
--- a/bin/dig/nslookup.c
+++ b/bin/dig/nslookup.c
@@ -585,7 +585,7 @@ version(void) {
 
 static void
 setoption(char *opt) {
-	if (strncasecmp(opt, "all", 4) == 0) {
+	if (strncasecmp(opt, "all", 3) == 0) {
 		show_settings(ISC_TRUE, ISC_FALSE);
 	} else if (strncasecmp(opt, "class=", 6) == 0) {
 		if (testclass(&opt[6]))
diff --git a/bin/dnssec/dnssec-keygen.c b/bin/dnssec/dnssec-keygen.c
index 3cae29c724..df3e407a6c 100644
--- a/bin/dnssec/dnssec-keygen.c
+++ b/bin/dnssec/dnssec-keygen.c
@@ -231,7 +231,7 @@ main(int argc, char **argv) {
 	int		dbits = 0;
 	dns_ttl_t	ttl = 0;
 	isc_boolean_t	use_default = ISC_FALSE, use_nsec3 = ISC_FALSE;
-	isc_stdtime_t	publish = 0, activate = 0, revoke = 0;
+	isc_stdtime_t	publish = 0, activate = 0, revokekey = 0;
 	isc_stdtime_t	inactive = 0, delete = 0;
 	isc_stdtime_t	now;
 	int		prepub = -1;
@@ -416,7 +416,7 @@ main(int argc, char **argv) {
 			if (setrev || unsetrev)
 				fatal("-R specified more than once");
 
-			revoke = strtotime(isc_commandline_argument,
+			revokekey = strtotime(isc_commandline_argument,
 					   now, now, &setrev);
 			unsetrev = !setrev;
 			break;
@@ -945,7 +945,7 @@ main(int argc, char **argv) {
 						"was used. Revoking a ZSK is "
 						"legal, but undefined.\n",
 						program);
-				dst_key_settime(key, DST_TIME_REVOKE, revoke);
+				dst_key_settime(key, DST_TIME_REVOKE, revokekey);
 			}
 
 			if (setinact)
diff --git a/bin/dnssec/dnssec-revoke.c b/bin/dnssec/dnssec-revoke.c
index 0b9a1f59ea..13bc9ca441 100644
--- a/bin/dnssec/dnssec-revoke.c
+++ b/bin/dnssec/dnssec-revoke.c
@@ -89,7 +89,7 @@ main(int argc, char **argv) {
 	isc_uint32_t flags;
 	isc_buffer_t buf;
 	isc_boolean_t force = ISC_FALSE;
-	isc_boolean_t remove = ISC_FALSE;
+	isc_boolean_t removefile = ISC_FALSE;
 	isc_boolean_t id = ISC_FALSE;
 
 	if (argc == 1)
@@ -123,7 +123,7 @@ main(int argc, char **argv) {
 			}
 			break;
 		    case 'r':
-			remove = ISC_TRUE;
+			removefile = ISC_TRUE;
 			break;
 		    case 'R':
 			id = ISC_TRUE;
@@ -247,7 +247,7 @@ main(int argc, char **argv) {
 		 * Remove old key file, if told to (and if
 		 * it isn't the same as the new file)
 		 */
-		if (remove && dst_key_alg(key) != DST_ALG_RSAMD5) {
+		if (removefile && dst_key_alg(key) != DST_ALG_RSAMD5) {
 			isc_buffer_init(&buf, oldname, sizeof(oldname));
 			dst_key_setflags(key, flags & ~DNS_KEYFLAG_REVOKE);
 			dst_key_buildfilename(key, DST_TYPE_PRIVATE, dir, &buf);
diff --git a/bin/dnssec/dnssec-settime.c b/bin/dnssec/dnssec-settime.c
index 3d18b61a61..fce63efcc1 100644
--- a/bin/dnssec/dnssec-settime.c
+++ b/bin/dnssec/dnssec-settime.c
@@ -108,8 +108,8 @@ printtime(dst_key_t *key, int type, const char *tag, isc_boolean_t epoch,
 	} else if (epoch) {
 		fprintf(stream, "%d\n", (int) when);
 	} else {
-		time_t time = when;
-		output = ctime(&time);
+		time_t timet = when;
+		output = ctime(&timet);
 		fprintf(stream, "%s", output);
 	}
 }
diff --git a/bin/dnssec/dnssec-signzone.c b/bin/dnssec/dnssec-signzone.c
index d791edb53f..510531d6d4 100644
--- a/bin/dnssec/dnssec-signzone.c
+++ b/bin/dnssec/dnssec-signzone.c
@@ -1313,7 +1313,7 @@ cleanup:
  * Delete any RRSIG records at a node.
  */
 static void
-cleannode(dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node) {
+cleannode(dns_db_t *db, dns_dbversion_t *dbversion, dns_dbnode_t *node) {
 	dns_rdatasetiter_t *rdsiter = NULL;
 	dns_rdataset_t set;
 	isc_result_t result, dresult;
@@ -1322,7 +1322,7 @@ cleannode(dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node) {
 		return;
 
 	dns_rdataset_init(&set);
-	result = dns_db_allrdatasets(db, node, version, 0, &rdsiter);
+	result = dns_db_allrdatasets(db, node, dbversion, 0, &rdsiter);
 	check_result(result, "dns_db_allrdatasets");
 	result = dns_rdatasetiter_first(rdsiter);
 	while (result == ISC_R_SUCCESS) {
@@ -1336,7 +1336,7 @@ cleannode(dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node) {
 		dns_rdataset_disassociate(&set);
 		result = dns_rdatasetiter_next(rdsiter);
 		if (destroy) {
-			dresult = dns_db_deleterdataset(db, node, version,
+			dresult = dns_db_deleterdataset(db, node, dbversion,
 							dns_rdatatype_rrsig,
 							covers);
 			check_result(dresult, "dns_db_deleterdataset");
@@ -2740,7 +2740,7 @@ writeset(const char *prefix, dns_rdatatype_t type) {
 	char *filename;
 	char namestr[DNS_NAME_FORMATSIZE];
 	dns_db_t *db = NULL;
-	dns_dbversion_t *version = NULL;
+	dns_dbversion_t *dbversion = NULL;
 	dns_diff_t diff;
 	dns_difftuple_t *tuple = NULL;
 	dns_fixedname_t fixed;
@@ -2860,19 +2860,19 @@ writeset(const char *prefix, dns_rdatatype_t type) {
 			       gclass, 0, NULL, &db);
 	check_result(result, "dns_db_create");
 
-	result = dns_db_newversion(db, &version);
+	result = dns_db_newversion(db, &dbversion);
 	check_result(result, "dns_db_newversion");
 
-	result = dns_diff_apply(&diff, db, version);
+	result = dns_diff_apply(&diff, db, dbversion);
 	check_result(result, "dns_diff_apply");
 	dns_diff_clear(&diff);
 
-	result = dns_master_dump(mctx, db, version, style, filename);
+	result = dns_master_dump(mctx, db, dbversion, style, filename);
 	check_result(result, "dns_master_dump");
 
 	isc_mem_put(mctx, filename, filenamelen + 1);
 
-	dns_db_closeversion(db, &version, ISC_FALSE);
+	dns_db_closeversion(db, &dbversion, ISC_FALSE);
 	dns_db_detach(&db);
 }
 
diff --git a/bin/named/client.c b/bin/named/client.c
index d39e8e6b61..d27d5431fe 100644
--- a/bin/named/client.c
+++ b/bin/named/client.c
@@ -328,12 +328,12 @@ exit_check(ns_client_t *client) {
 		 * We are trying to abort request processing.
 		 */
 		if (client->nsends > 0) {
-			isc_socket_t *socket;
+			isc_socket_t *sock;
 			if (TCP_CLIENT(client))
-				socket = client->tcpsocket;
+				sock = client->tcpsocket;
 			else
-				socket = client->udpsocket;
-			isc_socket_cancel(socket, client->task,
+				sock = client->udpsocket;
+			isc_socket_cancel(sock, client->task,
 					  ISC_SOCKCANCEL_SEND);
 		}
 
@@ -828,16 +828,16 @@ client_sendpkg(ns_client_t *client, isc_buffer_t *buffer) {
 	isc_result_t result;
 	isc_region_t r;
 	isc_sockaddr_t *address;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	isc_netaddr_t netaddr;
 	int match;
 	unsigned int sockflags = ISC_SOCKFLAG_IMMEDIATE;
 
 	if (TCP_CLIENT(client)) {
-		socket = client->tcpsocket;
+		sock = client->tcpsocket;
 		address = NULL;
 	} else {
-		socket = client->udpsocket;
+		sock = client->udpsocket;
 		address = &client->peeraddr;
 
 		isc_netaddr_fromsockaddr(&netaddr, &client->peeraddr);
@@ -861,7 +861,7 @@ client_sendpkg(ns_client_t *client, isc_buffer_t *buffer) {
 
 	CTRACE("sendto");
 
-	result = isc_socket_sendto2(socket, &r, client->task,
+	result = isc_socket_sendto2(sock, &r, client->task,
 				    address, pktinfo,
 				    client->sendevent, sockflags);
 	if (result == ISC_R_SUCCESS || result == ISC_R_INPROGRESS) {
@@ -2782,7 +2782,7 @@ void
 ns_client_logv(ns_client_t *client, isc_logcategory_t *category,
 	       isc_logmodule_t *module, int level, const char *fmt, va_list ap)
 {
-	char msgbuf[2048];
+	char msgbuf[4096];
 	char peerbuf[ISC_SOCKADDR_FORMATSIZE];
 	char signerbuf[DNS_NAME_FORMATSIZE], qnamebuf[DNS_NAME_FORMATSIZE];
 	const char *viewname = "";
diff --git a/bin/named/include/named/main.h b/bin/named/include/named/main.h
index 711ff951c4..d41641f5cf 100644
--- a/bin/named/include/named/main.h
+++ b/bin/named/include/named/main.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005, 2007, 2009, 2013  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004, 2005, 2007, 2009, 2013, 2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
diff --git a/bin/named/main.c b/bin/named/main.c
index 3b47537e36..5664e6545e 100644
--- a/bin/named/main.c
+++ b/bin/named/main.c
@@ -600,16 +600,16 @@ parse_command_line(int argc, char *argv[]) {
 			ns_g_username = isc_commandline_argument;
 			break;
 		case 'v':
-			printf("%s %s", ns_g_product, ns_g_version);
-			if (*ns_g_description != 0)
-				printf(" %s", ns_g_description);
-			printf("\n");
+			printf("%s %s%s%s <id:%s>\n",
+			       ns_g_product, ns_g_version,
+			       (*ns_g_description != '\0') ? " " : "",
+			       ns_g_description, ns_g_srcid);
 			exit(0);
 		case 'V':
-			printf("%s %s", ns_g_product, ns_g_version);
-			if (*ns_g_description != 0)
-				printf(" %s", ns_g_description);
-			printf(" <id:%s> built by %s with %s\n", ns_g_srcid,
+			printf("%s %s%s%s <id:%s>\n", ns_g_product, ns_g_version,
+			       (*ns_g_description != '\0') ? " " : "",
+			       ns_g_description, ns_g_srcid);
+			printf("built by %s with %s\n",
 			       ns_g_builder, ns_g_configargs);
 #ifdef __clang__
 			printf("compiled by CLANG %s\n", __VERSION__);
@@ -759,10 +759,6 @@ static void
 destroy_managers(void) {
 	ns_lwresd_shutdown();
 
-	isc_entropy_detach(&ns_g_entropy);
-	if (ns_g_fallbackentropy != NULL)
-		isc_entropy_detach(&ns_g_fallbackentropy);
-
 	/*
 	 * isc_taskmgr_destroy() will block until all tasks have exited,
 	 */
@@ -907,8 +903,10 @@ setup(void) {
 				   isc_result_totext(result));
 
 	isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL, NS_LOGMODULE_MAIN,
-		      ISC_LOG_NOTICE, "starting %s %s%s", ns_g_product,
-		      ns_g_version, saved_command_line);
+		      ISC_LOG_NOTICE, "starting %s %s%s%s <id:%s>%s",
+		      ns_g_product, ns_g_version,
+		      *ns_g_description ? " " : "", ns_g_description,
+		      ns_g_srcid, saved_command_line);
 
 	isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL, NS_LOGMODULE_MAIN,
 		      ISC_LOG_NOTICE, "built with %s", ns_g_configargs);
@@ -1027,6 +1025,10 @@ cleanup(void) {
 
 	ns_server_destroy(&ns_g_server);
 
+	isc_entropy_detach(&ns_g_entropy);
+	if (ns_g_fallbackentropy != NULL)
+		isc_entropy_detach(&ns_g_fallbackentropy);
+
 	ns_builtin_deinit();
 
 	/*
diff --git a/bin/named/named.docbook b/bin/named/named.docbook
index 83a12c30a9..0ea469d357 100644
--- a/bin/named/named.docbook
+++ b/bin/named/named.docbook
@@ -2,7 +2,7 @@
                "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 	       [<!ENTITY mdash "&#8212;">]>
 <!--
- - Copyright (C) 2004-2009, 2011, 2013, 2014  Internet Systems Consortium, Inc. ("ISC")
+ - Copyright (C) 2004-2009, 2011, 2013-2015  Internet Systems Consortium, Inc. ("ISC")
  - Copyright (C) 2000, 2001, 2003  Internet Software Consortium.
  -
  - Permission to use, copy, modify, and/or distribute this software for any
@@ -45,6 +45,7 @@
       <year>2011</year>
       <year>2013</year>
       <year>2014</year>
+      <year>2015</year>
       <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
     </copyright>
     <copyright>
diff --git a/bin/named/query.c b/bin/named/query.c
index fdc6e941a2..b0f12756f1 100644
--- a/bin/named/query.c
+++ b/bin/named/query.c
@@ -117,24 +117,30 @@
 #define NOQNAME(r)		(((r)->attributes & \
 				  DNS_RDATASETATTR_NOQNAME) != 0)
 
-#if 0
-#define CTRACE(l,m)	  do { \
-	if (client != NULL && client->query.qname != NULL) { \
-		char qbuf[DNS_NAME_FORMATSIZE]; \
-		dns_name_format(client->query.qname, qbuf, sizeof(qbuf)); \
-		isc_log_write(ns_g_lctx, \
-			      NS_LOGCATEGORY_CLIENT, NS_LOGMODULE_QUERY, \
-			      l, "client %p (%s): %s", client, qbuf, (m)); \
-	} else { \
-		isc_log_write(ns_g_lctx, \
-			      NS_LOGCATEGORY_CLIENT, NS_LOGMODULE_QUERY, \
-			      l, "client %p (<unknown-name>): %s", \
-			      client, (m)); \
-	} \
+#ifdef WANT_QUERYTRACE
+#define CTRACE(l,m)	  do {						\
+	if (client != NULL && client->query.qname != NULL) {		\
+		if (isc_log_wouldlog(ns_g_lctx, l)) {			\
+			char qbuf[DNS_NAME_FORMATSIZE];			\
+			dns_name_format(client->query.qname,		\
+					qbuf, sizeof(qbuf));		\
+			isc_log_write(ns_g_lctx,			\
+				      NS_LOGCATEGORY_CLIENT,		\
+				      NS_LOGMODULE_QUERY,		\
+				      l, "client %p (%s): %s",		\
+				      client, qbuf, (m));		\
+		}							\
+	 } else {							\
+		isc_log_write(ns_g_lctx,				\
+			      NS_LOGCATEGORY_CLIENT,			\
+			      NS_LOGMODULE_QUERY,			\
+			      l, "client %p (<unknown-name>): %s",	\
+			      client, (m));				\
+	}								\
 } while(0)
 #else
 #define CTRACE(l,m) ((void)m)
-#endif
+#endif /* WANT_QUERYTRACE */
 
 
 #define DNS_GETDB_NOEXACT 0x01U
diff --git a/bin/named/server.c b/bin/named/server.c
index 84b4067bf4..7011836361 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -5784,6 +5784,8 @@ load_configuration(const char *filename, ns_server_t *server,
 	if (view != NULL)
 		dns_view_detach(&view);
 
+	ISC_LIST_APPENDLIST(viewlist, builtin_viewlist, link);
+
 	/*
 	 * This cleans up either the old production view list
 	 * or our temporary list depending on whether they
@@ -7632,7 +7634,7 @@ ns_server_status(ns_server_t *server, isc_buffer_t *text) {
 
 	n = snprintf((char *)isc_buffer_used(text),
 		     isc_buffer_availablelength(text),
-		     "version: %s%s%s%s <id:%s>\n"
+		     "version: %s %s%s%s <id:%s>%s%s%s\n"
 #ifdef ISC_PLATFORM_USETHREADS
 		     "CPUs found: %u\n"
 		     "worker threads: %u\n"
@@ -7647,7 +7649,9 @@ ns_server_status(ns_server_t *server, isc_buffer_t *text) {
 		     "recursive clients: %d/%d/%d\n"
 		     "tcp clients: %d/%d\n"
 		     "server is up and running",
-		     ns_g_version, ob, alt, cb, ns_g_srcid,
+		     ns_g_product, ns_g_version,
+		     (*ns_g_description != '\0') ? " " : "",
+		     ns_g_description, ns_g_srcid, ob, alt, cb,
 #ifdef ISC_PLATFORM_USETHREADS
 		     ns_g_cpus_detected, ns_g_cpus, ns_g_udpdisp,
 #endif
diff --git a/bin/named/statschannel.c b/bin/named/statschannel.c
index 8ec08d7b19..dfd155bad5 100644
--- a/bin/named/statschannel.c
+++ b/bin/named/statschannel.c
@@ -495,7 +495,7 @@ dump_counters(isc_stats_t *stats, statsformat_t type, void *arg,
 	      const char *category, const char **desc, int ncounters,
 	      int *indices, isc_uint64_t *values, int options)
 {
-	int i, index;
+	int i, idx;
 	isc_uint64_t value;
 	stats_dumparg_t dumparg;
 	FILE *fp;
@@ -517,8 +517,8 @@ dump_counters(isc_stats_t *stats, statsformat_t type, void *arg,
 	isc_stats_dump(stats, generalstat_dump, &dumparg, options);
 
 	for (i = 0; i < ncounters; i++) {
-		index = indices[i];
-		value = values[index];
+		idx = indices[i];
+		value = values[idx];
 
 		if (value == 0 && (options & ISC_STATSDUMP_VERBOSE) == 0)
 			continue;
@@ -527,7 +527,7 @@ dump_counters(isc_stats_t *stats, statsformat_t type, void *arg,
 		case statsformat_file:
 			fp = arg;
 			fprintf(fp, "%20" ISC_PRINT_QUADFORMAT "u %s\n",
-				value, desc[index]);
+				value, desc[idx]);
 			break;
 		case statsformat_xml:
 #ifdef HAVE_LIBXML2
@@ -587,7 +587,7 @@ dump_counters(isc_stats_t *stats, statsformat_t type, void *arg,
 							       "name"));
 				TRY0(xmlTextWriterWriteString(writer,
 							      ISC_XMLCHAR
-							      desc[index]));
+							      desc[idx]));
 				TRY0(xmlTextWriterEndElement(writer)); /* name */
 
 				TRY0(xmlTextWriterStartElement(writer,
@@ -596,7 +596,7 @@ dump_counters(isc_stats_t *stats, statsformat_t type, void *arg,
 			} else {
 				TRY0(xmlTextWriterStartElement(writer,
 							       ISC_XMLCHAR
-							       desc[index]));
+							       desc[idx]));
 			}
 			TRY0(xmlTextWriterWriteFormatString(writer,
 							    "%"
diff --git a/bin/named/win32/ntservice.c b/bin/named/win32/ntservice.c
index c1d342cebd..3e875851b4 100644
--- a/bin/named/win32/ntservice.c
+++ b/bin/named/win32/ntservice.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2006, 2007, 2009, 2011, 2013, 2014  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004, 2006, 2007, 2009, 2011, 2013-2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2002  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
diff --git a/bin/nsupdate/nsupdate.c b/bin/nsupdate/nsupdate.c
index a68b00e0b9..6a40d69851 100644
--- a/bin/nsupdate/nsupdate.c
+++ b/bin/nsupdate/nsupdate.c
@@ -106,7 +106,7 @@ extern int h_errno;
 #endif
 #endif
 
-#define MAXCMD (4 * 1024)
+#define MAXCMD (128 * 1024)
 #define MAXWIRE (64 * 1024)
 #define PACKETSIZE ((64 * 1024) - 1)
 #define INITTEXT (2 * 1024)
diff --git a/bin/nsupdate/nsupdate.docbook b/bin/nsupdate/nsupdate.docbook
index e0f53e2a24..b973c1f693 100644
--- a/bin/nsupdate/nsupdate.docbook
+++ b/bin/nsupdate/nsupdate.docbook
@@ -1,8 +1,8 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
-               "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
+	       "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 	       [<!ENTITY mdash "&#8212;">]>
 <!--
- - Copyright (C) 2004-2012, 2014  Internet Systems Consortium, Inc. ("ISC")
+ - Copyright (C) 2004-2012, 2014, 2015  Internet Systems Consortium, Inc. ("ISC")
  - Copyright (C) 2000-2003  Internet Software Consortium.
  -
  - Permission to use, copy, modify, and/or distribute this software for any
@@ -44,6 +44,7 @@
       <year>2011</year>
       <year>2012</year>
       <year>2014</year>
+      <year>2015</year>
       <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
     </copyright>
     <copyright>
@@ -60,12 +61,13 @@
       <command>nsupdate</command>
       <arg><option>-d</option></arg>
       <arg><option>-D</option></arg>
+      <arg><option>-L <replaceable class="parameter">level</replaceable></option></arg>
       <group>
 	<arg><option>-g</option></arg>
 	<arg><option>-o</option></arg>
 	<arg><option>-l</option></arg>
-        <arg><option>-y <replaceable class="parameter"><optional>hmac:</optional>keyname:secret</replaceable></option></arg>
-        <arg><option>-k <replaceable class="parameter">keyfile</replaceable></option></arg>
+	<arg><option>-y <replaceable class="parameter"><optional>hmac:</optional>keyname:secret</replaceable></option></arg>
+	<arg><option>-k <replaceable class="parameter">keyfile</replaceable></option></arg>
       </group>
       <arg><option>-t <replaceable class="parameter">timeout</replaceable></option></arg>
       <arg><option>-u <replaceable class="parameter">udptimeout</replaceable></option></arg>
@@ -102,44 +104,31 @@
       Requests are sent to the zone's master server.
       This is identified by the MNAME field of the zone's SOA record.
     </para>
-    <para>
-      The
-      <option>-d</option>
-      option makes
-      <command>nsupdate</command>
-      operate in debug mode.
-      This provides tracing information about the update requests that are
-      made and the replies received from the name server.
-    </para>
-    <para>
-      The <option>-D</option> option makes <command>nsupdate</command>
-      report additional debugging information to <option>-d</option>.
-    </para>
-    <para>
-      The <option>-L</option> option with an integer argument of zero or
-      higher sets the logging debug level.  If zero, logging is disabled.
-    </para>
     <para>
       Transaction signatures can be used to authenticate the Dynamic
       DNS updates.  These use the TSIG resource record type described
       in RFC 2845 or the SIG(0) record described in RFC 2535 and
-      RFC 2931 or GSS-TSIG as described in RFC 3645.  TSIG relies on
+      RFC 2931 or GSS-TSIG as described in RFC 3645.
+    </para>
+    <para>
+      TSIG relies on
       a shared secret that should only be known to
-      <command>nsupdate</command> and the name server.  Currently,
-      the only supported encryption algorithm for TSIG is HMAC-MD5,
-      which is defined in RFC 2104.  Once other algorithms are
-      defined for TSIG, applications will need to ensure they select
-      the appropriate algorithm as well as the key when authenticating
-      each other.  For instance, suitable <type>key</type> and
+      <command>nsupdate</command> and the name server.
+      For instance, suitable <type>key</type> and
       <type>server</type> statements would be added to
       <filename>/etc/named.conf</filename> so that the name server
       can associate the appropriate secret key and algorithm with
       the IP address of the client application that will be using
-      TSIG authentication.  SIG(0) uses public key cryptography.
+      TSIG authentication. You can use <command>ddns-confgen</command>
+      to generate suitable configuration fragments.
+      <command>nsupdate</command>
+      uses the <option>-y</option> or <option>-k</option> options
+      to provide the TSIG shared secret.  These options are mutually exclusive.
+    </para>
+    <para>
+      SIG(0) uses public key cryptography.
       To use a SIG(0) key, the public key must be stored in a KEY
       record in a zone served by the name server.
-      <command>nsupdate</command> does not read
-      <filename>/etc/named.conf</filename>.
     </para>
     <para>
       GSS-TSIG uses Kerberos credentials.  Standard GSS-TSIG mode
@@ -147,108 +136,183 @@
       non-standards-compliant variant of GSS-TSIG used by Windows
       2000 can be switched on with the <option>-o</option> flag.
     </para>
-    <para><command>nsupdate</command>
-      uses the <option>-y</option> or <option>-k</option> option
-      to provide the shared secret needed to generate a TSIG record
-      for authenticating Dynamic DNS update requests, default type
-      HMAC-MD5.  These options are mutually exclusive. 
-    </para>
-    <para>
-      When the <option>-y</option> option is used, a signature is
-      generated from
-      <optional><parameter>hmac:</parameter></optional><parameter>keyname:secret.</parameter>
-      <parameter>keyname</parameter> is the name of the key, and
-      <parameter>secret</parameter> is the base64 encoded shared secret.
-      <parameter>hmac</parameter> is the name of the key algorithm;
-      valid choices are <literal>hmac-md5</literal>,
-      <literal>hmac-sha1</literal>, <literal>hmac-sha224</literal>,
-      <literal>hmac-sha256</literal>, <literal>hmac-sha384</literal>, or
-      <literal>hmac-sha512</literal>.  If <parameter>hmac</parameter>
-      is not specified, the default is <literal>hmac-md5</literal>.
-      NOTE: Use of the <option>-y</option> option is discouraged because the
-      shared secret is supplied as a command line argument in clear text.
-      This may be visible in the output from
-      <citerefentry>
-        <refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum>
-      </citerefentry>
-      or in a history file maintained by the user's shell.
-    </para>
-    <para>
-      With the
-      <option>-k</option> option, <command>nsupdate</command> reads
-      the shared secret from the file <parameter>keyfile</parameter>.
-      Keyfiles may be in two formats: a single file containing
-      a <filename>named.conf</filename>-format <command>key</command>
-      statement, which may be generated automatically by
-      <command>ddns-confgen</command>, or a pair of files whose names are
-      of the format <filename>K{name}.+157.+{random}.key</filename> and
-      <filename>K{name}.+157.+{random}.private</filename>, which can be
-      generated by <command>dnssec-keygen</command>.
-      The <option>-k</option> may also be used to specify a SIG(0) key used
-      to authenticate Dynamic DNS update requests.  In this case, the key
-      specified is not an HMAC-MD5 key.
-    </para>
-    <para>
-      <command>nsupdate</command> can be run in a local-host only mode
-      using the <option>-l</option> flag.  This sets the server address to
-      localhost (disabling the <command>server</command> so that the server
-      address cannot be overridden).  Connections to the local server will
-      use a TSIG key found in <filename>/var/run/named/session.key</filename>,
-      which is automatically generated by <command>named</command> if any
-      local master zone has set <command>update-policy</command> to
-      <command>local</command>.  The location of this key file can be
-      overridden with the <option>-k</option> option.
-    </para>
-    <para>
-      By default, <command>nsupdate</command>
-      uses UDP to send update requests to the name server unless they are too
-      large to fit in a UDP request in which case TCP will be used.
-      The
-      <option>-v</option>
-      option makes
-      <command>nsupdate</command>
-      use a TCP connection.
-      This may be preferable when a batch of update requests is made.
-    </para>
-    <para>
-      The <option>-p</option> sets the default port number to use for
-      connections to a name server.  The default is 53.
-    </para>
-    <para>
-      The <option>-t</option> option sets the maximum time an update request
-      can
-      take before it is aborted.  The default is 300 seconds.  Zero can be
-      used
-      to disable the timeout.
-    </para>
-    <para>
-      The <option>-u</option> option sets the UDP retry interval.  The default
-      is
-      3 seconds.  If zero, the interval will be computed from the timeout
-      interval
-      and number of UDP retries.
-    </para>
-    <para>
-      The <option>-r</option> option sets the number of UDP retries. The
-      default is
-      3.  If zero, only one update request will be made.
-    </para>
-    <para>
-      The <option>-R <replaceable
-      class="parameter">randomdev</replaceable></option> option
-      specifies a source of randomness.  If the operating system
-      does not provide a <filename>/dev/random</filename> or
-      equivalent device, the default source of randomness is keyboard
-      input.  <filename>randomdev</filename> specifies the name of
-      a character device or file containing random data to be used
-      instead of the default.  The special value
-      <filename>keyboard</filename> indicates that keyboard input
-      should be used.  This option may be specified multiple times.
-    </para>
-    <para>
-      The -V option causes <command>nsupdate</command> to print the
-      version number and exit.
-    </para>
+  </refsect1>
+
+  <refsect1>
+    <title>OPTIONS</title>
+
+    <variablelist>
+      <varlistentry>
+	<term>-d</term>
+	<listitem>
+	  <para>
+	    Debug mode. This provides tracing information about the
+	    update requests that are made and the replies received
+	    from the name server.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-D</term>
+	<listitem>
+	  <para>
+	    Extra debug mode.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-k <replaceable class="parameter">keyfile</replaceable></term>
+	<listitem>
+	  <para>
+	    The file containing the TSIG authentication key.
+	    Keyfiles may be in two formats: a single file containing
+	    a <filename>named.conf</filename>-format <command>key</command>
+	    statement, which may be generated automatically by
+	    <command>ddns-confgen</command>, or a pair of files whose names are
+	    of the format <filename>K{name}.+157.+{random}.key</filename> and
+	    <filename>K{name}.+157.+{random}.private</filename>, which can be
+	    generated by <command>dnssec-keygen</command>.
+	    The <option>-k</option> may also be used to specify a SIG(0) key used
+	    to authenticate Dynamic DNS update requests.  In this case, the key
+	    specified is not an HMAC-MD5 key.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-l</term>
+	<listitem>
+	  <para>
+	    Local-host only mode. This sets the server address to
+	    localhost (disabling the <command>server</command> so that the server
+	    address cannot be overridden).  Connections to the local server will
+	    use a TSIG key found in <filename>/var/run/named/session.key</filename>,
+	    which is automatically generated by <command>named</command> if any
+	    local master zone has set <command>update-policy</command> to
+	    <command>local</command>.  The location of this key file can be
+	    overridden with the <option>-k</option> option.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-L <replaceable class="parameter">level</replaceable></term>
+	<listitem>
+	  <para>
+	    Set the logging debug level.  If zero, logging is disabled.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-p <replaceable class="parameter">port</replaceable></term>
+	<listitem>
+	  <para>
+	    Set the port to use for connections to a name server. The
+	    default is 53.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-r <replaceable class="parameter">udpretries</replaceable></term>
+	<listitem>
+	  <para>
+	    The number of UDP retries. The default is 3. If zero, only
+	    one update request will be made.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-R <replaceable class="parameter">randomdev</replaceable></term>
+	<listitem>
+	<para>
+	  Where to obtain randomness. If the operating system
+	  does not provide a <filename>/dev/random</filename> or
+	  equivalent device, the default source of randomness is keyboard
+	  input.  <filename>randomdev</filename> specifies the name of
+	  a character device or file containing random data to be used
+	  instead of the default.  The special value
+	  <filename>keyboard</filename> indicates that keyboard input
+	  should be used.  This option may be specified multiple times.
+	</para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-t <replaceable class="parameter">timeout</replaceable></term>
+	<listitem>
+	  <para>
+	    The maximum time an update request can take before it is
+	    aborted. The default is 300 seconds. Zero can be used to
+	    disable the timeout.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-u <replaceable class="parameter">udptimeout</replaceable></term>
+	<listitem>
+	  <para>
+	    The UDP retry interval. The default is 3 seconds. If zero,
+	    the interval will be computed from the timeout interval and
+	    number of UDP retries.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-v</term>
+	<listitem>
+	  <para>
+	    Use TCP even for small update requests.
+	    By default, <command>nsupdate</command>
+	    uses UDP to send update requests to the name server unless they are too
+	    large to fit in a UDP request in which case TCP will be used.
+	    TCP may be preferable when a batch of update requests is made.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-V</term>
+	<listitem>
+	  <para>
+	    Print the version number and exit.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+      <varlistentry>
+	<term>-y <replaceable class="parameter"><optional>hmac:</optional>keyname:secret</replaceable></term>
+	<listitem>
+	  <para>
+	    Literal TSIG authentication key.
+	    <parameter>keyname</parameter> is the name of the key, and
+	    <parameter>secret</parameter> is the base64 encoded shared secret.
+	    <parameter>hmac</parameter> is the name of the key algorithm;
+	    valid choices are <literal>hmac-md5</literal>,
+	    <literal>hmac-sha1</literal>, <literal>hmac-sha224</literal>,
+	    <literal>hmac-sha256</literal>, <literal>hmac-sha384</literal>, or
+	    <literal>hmac-sha512</literal>.  If <parameter>hmac</parameter>
+	    is not specified, the default is <literal>hmac-md5</literal>.
+	  </para>
+	  <para>
+	    NOTE: Use of the <option>-y</option> option is discouraged because the
+	    shared secret is supplied as a command line argument in clear text.
+	    This may be visible in the output from
+	    <citerefentry>
+	      <refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum>
+	    </citerefentry>
+	    or in a history file maintained by the user's shell.
+	  </para>
+	</listitem>
+      </varlistentry>
+
+    </variablelist>
   </refsect1>
 
   <refsect1>
@@ -281,382 +345,382 @@
       The command formats and their meaning are as follows:
       <variablelist>
 
-        <varlistentry>
-          <term>
-              <command>server</command>
-              <arg choice="req">servername</arg>
-              <arg choice="opt">port</arg>
-            </term>
-          <listitem>
-            <para>
-              Sends all dynamic update requests to the name server
-              <parameter>servername</parameter>.
-              When no server statement is provided,
-              <command>nsupdate</command>
-              will send updates to the master server of the correct zone.
-              The MNAME field of that zone's SOA record will identify the
-              master
-              server for that zone.
-              <parameter>port</parameter>
-              is the port number on
-              <parameter>servername</parameter>
-              where the dynamic update requests get sent.
-              If no port number is specified, the default DNS port number of
-              53 is
-              used.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>server</command>
+	      <arg choice="req">servername</arg>
+	      <arg choice="opt">port</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Sends all dynamic update requests to the name server
+	      <parameter>servername</parameter>.
+	      When no server statement is provided,
+	      <command>nsupdate</command>
+	      will send updates to the master server of the correct zone.
+	      The MNAME field of that zone's SOA record will identify the
+	      master
+	      server for that zone.
+	      <parameter>port</parameter>
+	      is the port number on
+	      <parameter>servername</parameter>
+	      where the dynamic update requests get sent.
+	      If no port number is specified, the default DNS port number of
+	      53 is
+	      used.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>local</command>
-              <arg choice="req">address</arg>
-              <arg choice="opt">port</arg>
-            </term>
-          <listitem>
-            <para>
-              Sends all dynamic update requests using the local
-              <parameter>address</parameter>.
+	<varlistentry>
+	  <term>
+	      <command>local</command>
+	      <arg choice="req">address</arg>
+	      <arg choice="opt">port</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Sends all dynamic update requests using the local
+	      <parameter>address</parameter>.
 
-              When no local statement is provided,
-              <command>nsupdate</command>
-              will send updates using an address and port chosen by the
-              system.
-              <parameter>port</parameter>
-              can additionally be used to make requests come from a specific
-              port.
-              If no port number is specified, the system will assign one.
-            </para>
-          </listitem>
-        </varlistentry>
+	      When no local statement is provided,
+	      <command>nsupdate</command>
+	      will send updates using an address and port chosen by the
+	      system.
+	      <parameter>port</parameter>
+	      can additionally be used to make requests come from a specific
+	      port.
+	      If no port number is specified, the system will assign one.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>zone</command>
-              <arg choice="req">zonename</arg>
-            </term>
-          <listitem>
-            <para>
-              Specifies that all updates are to be made to the zone
-              <parameter>zonename</parameter>.
-              If no
-              <parameter>zone</parameter>
-              statement is provided,
-              <command>nsupdate</command>
-              will attempt determine the correct zone to update based on the
-              rest of the input.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>zone</command>
+	      <arg choice="req">zonename</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Specifies that all updates are to be made to the zone
+	      <parameter>zonename</parameter>.
+	      If no
+	      <parameter>zone</parameter>
+	      statement is provided,
+	      <command>nsupdate</command>
+	      will attempt determine the correct zone to update based on the
+	      rest of the input.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>class</command>
-              <arg choice="req">classname</arg>
-            </term>
-          <listitem>
-            <para>
-              Specify the default class.
-              If no <parameter>class</parameter> is specified, the
-              default class is
-              <parameter>IN</parameter>.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>class</command>
+	      <arg choice="req">classname</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Specify the default class.
+	      If no <parameter>class</parameter> is specified, the
+	      default class is
+	      <parameter>IN</parameter>.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>ttl</command>
-              <arg choice="req">seconds</arg>
-            </term>
-          <listitem>
-            <para>
-              Specify the default time to live for records to be added.
+	<varlistentry>
+	  <term>
+	      <command>ttl</command>
+	      <arg choice="req">seconds</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Specify the default time to live for records to be added.
 	      The value <parameter>none</parameter> will clear the default
 	      ttl.
-            </para>
-          </listitem>
-        </varlistentry>
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>key</command>
-              <arg choice="opt">hmac:</arg><arg choice="req">keyname</arg>
-              <arg choice="req">secret</arg>
-            </term>
-          <listitem>
-            <para>
-              Specifies that all updates are to be TSIG-signed using the
-              <parameter>keyname</parameter> <parameter>secret</parameter> pair.
-              If <parameter>hmac</parameter> is specified, then it sets the
-              signing algorithm in use; the default is
-              <literal>hmac-md5</literal>.  The <command>key</command>
-              command overrides any key specified on the command line via
-              <option>-y</option> or <option>-k</option>.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>key</command>
+	      <arg choice="opt">hmac:</arg><arg choice="req">keyname</arg>
+	      <arg choice="req">secret</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Specifies that all updates are to be TSIG-signed using the
+	      <parameter>keyname</parameter> <parameter>secret</parameter> pair.
+	      If <parameter>hmac</parameter> is specified, then it sets the
+	      signing algorithm in use; the default is
+	      <literal>hmac-md5</literal>.  The <command>key</command>
+	      command overrides any key specified on the command line via
+	      <option>-y</option> or <option>-k</option>.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-            <command>gsstsig</command>
-          </term>
-          <listitem>
-            <para>
+	<varlistentry>
+	  <term>
+	    <command>gsstsig</command>
+	  </term>
+	  <listitem>
+	    <para>
 	      Use GSS-TSIG to sign the updated.  This is equivalent to
 	      specifying <option>-g</option> on the commandline.
-            </para>
-          </listitem>
-        </varlistentry>
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-            <command>oldgsstsig</command>
-          </term>
-          <listitem>
-            <para>
+	<varlistentry>
+	  <term>
+	    <command>oldgsstsig</command>
+	  </term>
+	  <listitem>
+	    <para>
 	      Use the Windows 2000 version of GSS-TSIG to sign the updated.
 	      This is equivalent to specifying <option>-o</option> on the
 	      commandline.
-            </para>
-          </listitem>
-        </varlistentry>
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-            <command>realm</command>
-            <arg choice="req"><optional>realm_name</optional></arg>
-          </term>
-          <listitem>
-            <para>
+	<varlistentry>
+	  <term>
+	    <command>realm</command>
+	    <arg choice="req"><optional>realm_name</optional></arg>
+	  </term>
+	  <listitem>
+	    <para>
 	      When using GSS-TSIG use <parameter>realm_name</parameter> rather
 	      than the default realm in <filename>krb5.conf</filename>.  If no
 	      realm is specified the saved realm is cleared.
-            </para>
-          </listitem>
-        </varlistentry>
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command><optional>prereq</optional> nxdomain</command>
-              <arg choice="req">domain-name</arg>
-            </term>
-          <listitem>
-            <para>
-              Requires that no resource record of any type exists with name
-              <parameter>domain-name</parameter>.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>prereq</optional> nxdomain</command>
+	      <arg choice="req">domain-name</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Requires that no resource record of any type exists with name
+	      <parameter>domain-name</parameter>.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
 
-        <varlistentry>
-          <term>
-              <command><optional>prereq</optional> yxdomain</command>
-              <arg choice="req">domain-name</arg>
-            </term>
-          <listitem>
-            <para>
-              Requires that
-              <parameter>domain-name</parameter>
-              exists (has as at least one resource record, of any type).
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>prereq</optional> yxdomain</command>
+	      <arg choice="req">domain-name</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Requires that
+	      <parameter>domain-name</parameter>
+	      exists (has as at least one resource record, of any type).
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command><optional>prereq</optional> nxrrset</command>
-              <arg choice="req">domain-name</arg>
-              <arg choice="opt">class</arg>
-              <arg choice="req">type</arg>
-            </term>
-          <listitem>
-            <para>
-              Requires that no resource record exists of the specified
-              <parameter>type</parameter>,
-              <parameter>class</parameter>
-              and
-              <parameter>domain-name</parameter>.
-              If
-              <parameter>class</parameter>
-              is omitted, IN (internet) is assumed.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>prereq</optional> nxrrset</command>
+	      <arg choice="req">domain-name</arg>
+	      <arg choice="opt">class</arg>
+	      <arg choice="req">type</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Requires that no resource record exists of the specified
+	      <parameter>type</parameter>,
+	      <parameter>class</parameter>
+	      and
+	      <parameter>domain-name</parameter>.
+	      If
+	      <parameter>class</parameter>
+	      is omitted, IN (internet) is assumed.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
 
-        <varlistentry>
-          <term>
-              <command><optional>prereq</optional> yxrrset</command>
-              <arg choice="req">domain-name</arg>
-              <arg choice="opt">class</arg>
-              <arg choice="req">type</arg>
-            </term>
-          <listitem>
-            <para>
-              This requires that a resource record of the specified
-              <parameter>type</parameter>,
-              <parameter>class</parameter>
-              and
-              <parameter>domain-name</parameter>
-              must exist.
-              If
-              <parameter>class</parameter>
-              is omitted, IN (internet) is assumed.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>prereq</optional> yxrrset</command>
+	      <arg choice="req">domain-name</arg>
+	      <arg choice="opt">class</arg>
+	      <arg choice="req">type</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      This requires that a resource record of the specified
+	      <parameter>type</parameter>,
+	      <parameter>class</parameter>
+	      and
+	      <parameter>domain-name</parameter>
+	      must exist.
+	      If
+	      <parameter>class</parameter>
+	      is omitted, IN (internet) is assumed.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command><optional>prereq</optional> yxrrset</command>
-              <arg choice="req">domain-name</arg>
-              <arg choice="opt">class</arg>
-              <arg choice="req">type</arg>
-              <arg choice="req" rep="repeat">data</arg>
-            </term>
-          <listitem>
-            <para>
-              The
-              <parameter>data</parameter>
-              from each set of prerequisites of this form
-              sharing a common
-              <parameter>type</parameter>,
-              <parameter>class</parameter>,
-              and
-              <parameter>domain-name</parameter>
-              are combined to form a set of RRs.  This set of RRs must
-              exactly match the set of RRs existing in the zone at the
-              given
-              <parameter>type</parameter>,
-              <parameter>class</parameter>,
-              and
-              <parameter>domain-name</parameter>.
-              The
-              <parameter>data</parameter>
-              are written in the standard text representation of the resource
-              record's
-              RDATA.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>prereq</optional> yxrrset</command>
+	      <arg choice="req">domain-name</arg>
+	      <arg choice="opt">class</arg>
+	      <arg choice="req">type</arg>
+	      <arg choice="req" rep="repeat">data</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      The
+	      <parameter>data</parameter>
+	      from each set of prerequisites of this form
+	      sharing a common
+	      <parameter>type</parameter>,
+	      <parameter>class</parameter>,
+	      and
+	      <parameter>domain-name</parameter>
+	      are combined to form a set of RRs.  This set of RRs must
+	      exactly match the set of RRs existing in the zone at the
+	      given
+	      <parameter>type</parameter>,
+	      <parameter>class</parameter>,
+	      and
+	      <parameter>domain-name</parameter>.
+	      The
+	      <parameter>data</parameter>
+	      are written in the standard text representation of the resource
+	      record's
+	      RDATA.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command><optional>update</optional> del<optional>ete</optional></command>
-              <arg choice="req">domain-name</arg>
-              <arg choice="opt">ttl</arg>
-              <arg choice="opt">class</arg>
-              <arg choice="opt">type <arg choice="opt" rep="repeat">data</arg></arg>
-            </term>
-          <listitem>
-            <para>
-              Deletes any resource records named
-              <parameter>domain-name</parameter>.
-              If
-              <parameter>type</parameter>
-              and
-              <parameter>data</parameter>
-              is provided, only matching resource records will be removed.
-              The internet class is assumed if
-              <parameter>class</parameter>
-              is not supplied.  The
-              <parameter>ttl</parameter>
-              is ignored, and is only allowed for compatibility.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>update</optional> del<optional>ete</optional></command>
+	      <arg choice="req">domain-name</arg>
+	      <arg choice="opt">ttl</arg>
+	      <arg choice="opt">class</arg>
+	      <arg choice="opt">type <arg choice="opt" rep="repeat">data</arg></arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Deletes any resource records named
+	      <parameter>domain-name</parameter>.
+	      If
+	      <parameter>type</parameter>
+	      and
+	      <parameter>data</parameter>
+	      is provided, only matching resource records will be removed.
+	      The internet class is assumed if
+	      <parameter>class</parameter>
+	      is not supplied.  The
+	      <parameter>ttl</parameter>
+	      is ignored, and is only allowed for compatibility.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command><optional>update</optional> add</command>
-              <arg choice="req">domain-name</arg>
-              <arg choice="req">ttl</arg>
-              <arg choice="opt">class</arg>
-              <arg choice="req">type</arg>
-              <arg choice="req" rep="repeat">data</arg>
-            </term>
-          <listitem>
-            <para>
-              Adds a new resource record with the specified
-              <parameter>ttl</parameter>,
-              <parameter>class</parameter>
-              and
-              <parameter>data</parameter>.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command><optional>update</optional> add</command>
+	      <arg choice="req">domain-name</arg>
+	      <arg choice="req">ttl</arg>
+	      <arg choice="opt">class</arg>
+	      <arg choice="req">type</arg>
+	      <arg choice="req" rep="repeat">data</arg>
+	    </term>
+	  <listitem>
+	    <para>
+	      Adds a new resource record with the specified
+	      <parameter>ttl</parameter>,
+	      <parameter>class</parameter>
+	      and
+	      <parameter>data</parameter>.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>show</command>
-            </term>
-          <listitem>
-            <para>
-              Displays the current message, containing all of the
-              prerequisites and
-              updates specified since the last send.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>show</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Displays the current message, containing all of the
+	      prerequisites and
+	      updates specified since the last send.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>send</command>
-            </term>
-          <listitem>
-            <para>
-              Sends the current message.  This is equivalent to entering a
-              blank line.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>send</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Sends the current message.  This is equivalent to entering a
+	      blank line.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>answer</command>
-            </term>
-          <listitem>
-            <para>
-              Displays the answer.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>answer</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Displays the answer.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>debug</command>
-            </term>
-          <listitem>
-            <para>
-              Turn on debugging.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>debug</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Turn on debugging.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>version</command>
-            </term>
-          <listitem>
-            <para>
-              Print version number.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>version</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Print version number.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
-        <varlistentry>
-          <term>
-              <command>help</command>
-            </term>
-          <listitem>
-            <para>
-              Print a list of commands.
-            </para>
-          </listitem>
-        </varlistentry>
+	<varlistentry>
+	  <term>
+	      <command>help</command>
+	    </term>
+	  <listitem>
+	    <para>
+	      Print a list of commands.
+	    </para>
+	  </listitem>
+	</varlistentry>
 
       </variablelist>
     </para>
@@ -723,45 +787,45 @@
 
     <variablelist>
       <varlistentry>
-        <term><constant>/etc/resolv.conf</constant></term>
-        <listitem>
-          <para>
-            used to identify default name server
-          </para>
-        </listitem>
+	<term><constant>/etc/resolv.conf</constant></term>
+	<listitem>
+	  <para>
+	    used to identify default name server
+	  </para>
+	</listitem>
       </varlistentry>
 
       <varlistentry>
-        <term><constant>/var/run/named/session.key</constant></term>
-        <listitem>
-          <para>
-            sets the default TSIG key for use in local-only mode
-          </para>
-        </listitem>
+	<term><constant>/var/run/named/session.key</constant></term>
+	<listitem>
+	  <para>
+	    sets the default TSIG key for use in local-only mode
+	  </para>
+	</listitem>
       </varlistentry>
 
       <varlistentry>
-        <term><constant>K{name}.+157.+{random}.key</constant></term>
-        <listitem>
-          <para>
-            base-64 encoding of HMAC-MD5 key created by
-            <citerefentry>
-              <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
-            </citerefentry>.
-          </para>
-        </listitem>
+	<term><constant>K{name}.+157.+{random}.key</constant></term>
+	<listitem>
+	  <para>
+	    base-64 encoding of HMAC-MD5 key created by
+	    <citerefentry>
+	      <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
+	    </citerefentry>.
+	  </para>
+	</listitem>
       </varlistentry>
 
       <varlistentry>
-        <term><constant>K{name}.+157.+{random}.private</constant></term>
-        <listitem>
-          <para>
-            base-64 encoding of HMAC-MD5 key created by
-            <citerefentry>
-              <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
-            </citerefentry>.
-          </para>
-        </listitem>
+	<term><constant>K{name}.+157.+{random}.private</constant></term>
+	<listitem>
+	  <para>
+	    base-64 encoding of HMAC-MD5 key created by
+	    <citerefentry>
+	      <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
+	    </citerefentry>.
+	  </para>
+	</listitem>
       </varlistentry>
 
     </variablelist>
@@ -778,13 +842,13 @@
       <citetitle>RFC 2535</citetitle>,
       <citetitle>RFC 2931</citetitle>,
       <citerefentry>
-        <refentrytitle>named</refentrytitle><manvolnum>8</manvolnum>
+	<refentrytitle>named</refentrytitle><manvolnum>8</manvolnum>
       </citerefentry>,
       <citerefentry>
-        <refentrytitle>ddns-confgen</refentrytitle><manvolnum>8</manvolnum>
+	<refentrytitle>ddns-confgen</refentrytitle><manvolnum>8</manvolnum>
       </citerefentry>,
       <citerefentry>
-        <refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
+	<refentrytitle>dnssec-keygen</refentrytitle><manvolnum>8</manvolnum>
       </citerefentry>.
     </para>
   </refsect1>
diff --git a/bin/python/dnssec-coverage.py.in b/bin/python/dnssec-coverage.py.in
index c79b5d11b0..1f4eddde03 100755
--- a/bin/python/dnssec-coverage.py.in
+++ b/bin/python/dnssec-coverage.py.in
@@ -1,6 +1,6 @@
 #!@PYTHON@
 ############################################################################
-# Copyright (C) 2013, 2014  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2013-2015  Internet Systems Consortium, Inc. ("ISC")
 #
 # Permission to use, copy, modify, and/or distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
@@ -326,7 +326,7 @@ def vspace():
     if _firstline:
         _firstline = False
     else:
-        print
+        print()
 
 ############################################################################
 # vreset:
diff --git a/bin/tests/system/README b/bin/tests/system/README
index 8b4a3bfda8..a2d73d176d 100644
--- a/bin/tests/system/README
+++ b/bin/tests/system/README
@@ -1,4 +1,4 @@
-Copyright (C) 2004, 2010, 2011, 2013  Internet Systems Consortium, Inc. ("ISC")
+Copyright (C) 2004, 2010, 2011, 2013, 2015  Internet Systems Consortium, Inc. ("ISC")
 Copyright (C) 2000, 2001  Internet Software Consortium.
 See COPYRIGHT in the source root or http://isc.org/copyright.html for terms.
 
diff --git a/bin/tests/system/builtin/tests.sh b/bin/tests/system/builtin/tests.sh
index de92e4f5ba..3d28db10cb 100644
--- a/bin/tests/system/builtin/tests.sh
+++ b/bin/tests/system/builtin/tests.sh
@@ -14,6 +14,9 @@
 
 # $Id: tests.sh,v 1.3 2011/08/09 04:12:25 tbox Exp $
 
+SYSTEMTESTTOP=..
+. $SYSTEMTESTTOP/conf.sh
+
 status=0
 n=0
 
@@ -47,14 +50,14 @@ n=`expr $n + 1`
 ret=0
 echo "I:Checking that default version works for rndc ($n)"
 $RNDC -c ../common/rndc.conf -s 10.53.0.1 -p 9953 status > rndc.status.ns1.$n 2>&1
-grep "^version: $VERSION " rndc.status.ns1.$n > /dev/null || ret=1
+grep "^version: BIND $VERSION " rndc.status.ns1.$n > /dev/null || ret=1
 if [ $ret != 0 ] ; then echo I:failed; status=`expr $status + $ret`; fi
 
 n=`expr $n + 1`
 ret=0
 echo "I:Checking that custom version works for rndc ($n)"
 $RNDC -c ../common/rndc.conf -s 10.53.0.3 -p 9953 status > rndc.status.ns3.$n 2>&1
-grep "^version: $VERSION (this is a test of version) " rndc.status.ns3.$n > /dev/null || ret=1
+grep "^version: BIND $VERSION ${DESCRIPTION}${DESCRIPTION:+ }<id:.......> (this is a test of version)" rndc.status.ns3.$n > /dev/null || ret=1
 if [ $ret != 0 ] ; then echo I:failed; status=`expr $status + $ret`; fi
 
 n=`expr $n + 1`
diff --git a/bin/tests/system/conf.sh.in b/bin/tests/system/conf.sh.in
index 7e374e35b9..1bdd2f1268 100644
--- a/bin/tests/system/conf.sh.in
+++ b/bin/tests/system/conf.sh.in
@@ -90,6 +90,8 @@ else
 	TESTSOCK6=false
 fi
 
+. ${TOP}/version
+
 export NAMED LWRESD DIG NSUPDATE KEYGEN KEYFRLAB SIGNER KEYSIGNER KEYSETTOOL \
        PERL SUBDIRS RNDC CHECKZONE PK11GEN PK11LIST PK11DEL TESTSOCK6 \
-       JOURNALPRINT ARPANAME SAMPLE NSLOOKUP
+       JOURNALPRINT ARPANAME SAMPLE NSLOOKUP DESCRIPTION
diff --git a/bin/tests/system/nsupdate/tests.sh b/bin/tests/system/nsupdate/tests.sh
index 322a19486a..cdc2848b1c 100644
--- a/bin/tests/system/nsupdate/tests.sh
+++ b/bin/tests/system/nsupdate/tests.sh
@@ -532,5 +532,16 @@ if [ $ret -ne 0 ]; then
     status=1
 fi
 
+n=`expr $n + 1`
+ret=0
+echo "I:add a very large record. ($n)"
+$NSUPDATE verylarge || ret=1
+$DIG +noedns +tcp @10.53.0.1 -p 5300 txt txt.update.nil > dig.out.ns1.test$n
+grep "ANSWER: 1," dig.out.ns1.test$n > /dev/null || ret=1
+if [ $ret -ne 0 ]; then
+    echo "I:failed"
+    status=1
+fi
+
 echo "I:exit status: $status"
 exit $status
diff --git a/bin/tests/system/nsupdate/verylarge b/bin/tests/system/nsupdate/verylarge
new file mode 100644
index 0000000000..1039f10637
--- /dev/null
+++ b/bin/tests/system/nsupdate/verylarge
@@ -0,0 +1,16 @@
+; this contains an UPDATE that should fill a TCP DNS message's
+; maximum size (65535 bytes excl. the 2 byte message length field).
+;
+; 12 bytes = DNS message header
+; 16 bytes = zone section ("update.nil."(12) + type(2) + class(2))
+; 0 bytes = prereq section
+; 65507 bytes = update section ("txt"(4) + cmpptr(2) + type(2) + class(2) +
+;               ttl(4) + rdlength (2) +
+;               rdata(65491 = [<char-string>(8) * 8186 + <char-string>(3)])
+; 0 bytes = additional section
+;
+; 65535 bytes = total
+
+server 10.53.0.1 5300
+update add txt.update.nil. 600 TXT 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 0123456 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+send
diff --git a/bin/tests/system/start.pl b/bin/tests/system/start.pl
index 972020eb09..57c110279a 100644
--- a/bin/tests/system/start.pl
+++ b/bin/tests/system/start.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl -w
 #
-# Copyright (C) 2004-2008, 2010-2014  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004-2008, 2010-2015  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/bin/tests/system/staticstub/clean.sh b/bin/tests/system/staticstub/clean.sh
index 6854ada246..f9d8b034c5 100755
--- a/bin/tests/system/staticstub/clean.sh
+++ b/bin/tests/system/staticstub/clean.sh
@@ -14,15 +14,17 @@
 # OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 
+rm -f dig.out.*
+rm -f ns*/named.lock
+rm -f ns2/named.conf
+rm -f ns3/example.db
+rm -f ns3/named.conf
+rm -f ns3/undelegated.db
+rm -f ns4/sub.example.db
+rm -f ns?/named.memstats
+rm -f ns?/named.run
+rm -f ns?/named_dump.db
 rm -rf */*.signed
 rm -rf */K*
 rm -rf */dsset-*
 rm -rf */trusted.conf
-rm -f ns?/named.run
-rm -f ns?/named.memstats
-rm -f ns?/named_dump.db
-rm -f ns2/named.conf
-rm -f ns3/named.conf
-rm -f ns3/example.db
-rm -f ns4/sub.example.db
-rm -f dig.out.*
diff --git a/bin/tests/system/staticstub/ns2/named.conf.in b/bin/tests/system/staticstub/ns2/named.conf.in
index 75f062267a..fbab9a2ce0 100644
--- a/bin/tests/system/staticstub/ns2/named.conf.in
+++ b/bin/tests/system/staticstub/ns2/named.conf.in
@@ -66,3 +66,8 @@ zone "example.info" {
 	type static-stub;
 	server-addresses { ::1; }; #ns4
 };
+
+zone "undelegated" {
+	type static-stub;
+	server-addresses { 10.53.0.3; };
+};
diff --git a/bin/tests/system/staticstub/ns3/named.conf.in b/bin/tests/system/staticstub/ns3/named.conf.in
index 159a4beedb..222ae8e952 100644
--- a/bin/tests/system/staticstub/ns3/named.conf.in
+++ b/bin/tests/system/staticstub/ns3/named.conf.in
@@ -57,3 +57,8 @@ zone "example.org" {
 	type master;
 	file "example.org.db";
 };
+
+zone "undelegated" {
+	type master;
+	file "undelegated.db.signed";
+};
diff --git a/bin/tests/system/staticstub/ns3/sign.sh b/bin/tests/system/staticstub/ns3/sign.sh
index fb3c762cbe..4c970ec3f7 100755
--- a/bin/tests/system/staticstub/ns3/sign.sh
+++ b/bin/tests/system/staticstub/ns3/sign.sh
@@ -42,4 +42,24 @@ trusted-keys {
 };
 EOF
 ' > trusted.conf
+
+zone=undelegated
+infile=undelegated.db.in
+zonefile=undelegated.db
+keyname1=`$KEYGEN -q -r $RANDFILE -a RSASHA256 -b 1024 -n zone $zone`
+keyname2=`$KEYGEN -q -r $RANDFILE -a RSASHA256 -b 2048 -f KSK -n zone $zone`
+cat $infile $keyname1.key $keyname2.key > $zonefile
+
+$SIGNER -g -r $RANDFILE -o $zone $zonefile > /dev/null 2>&1
+
+cat $keyname2.key | grep -v '^; ' | $PERL -n -e '
+local ($dn, $class, $type, $flags, $proto, $alg, @rest) = split;
+local $key = join("", @rest);
+print <<EOF
+trusted-keys {
+    "$dn" $flags $proto $alg "$key";
+};
+EOF
+' >> trusted.conf
+
 cp trusted.conf ../ns2/trusted.conf
diff --git a/bin/tests/system/staticstub/ns3/undelegated.db.in b/bin/tests/system/staticstub/ns3/undelegated.db.in
new file mode 100644
index 0000000000..25a29fa0d2
--- /dev/null
+++ b/bin/tests/system/staticstub/ns3/undelegated.db.in
@@ -0,0 +1,26 @@
+; Copyright (C) 2015  Internet Systems Consortium, Inc. ("ISC")
+;
+; Permission to use, copy, modify, and/or distribute this software for any
+; purpose with or without fee is hereby granted, provided that the above
+; copyright notice and this permission notice appear in all copies.
+;
+; THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+; REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+; AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+; INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+; LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+; OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+; PERFORMANCE OF THIS SOFTWARE.
+
+$TTL 300	; 5 minutes
+undelegated.		IN SOA	ns3.undelegated. hostmaster.undelegated. (
+				2010080900 ; serial
+				20         ; refresh (20 seconds)
+				20         ; retry (20 seconds)
+				1814400    ; expire (3 weeks)
+				3600       ; minimum (1 hour)
+				)
+undelegated.		NS	ns3.undelegated.
+undelegated.		A	10.53.0.4
+undelegated.		AAAA	::1
+ns3.undelegated.		A	10.53.0.3
diff --git a/bin/tests/system/staticstub/tests.sh b/bin/tests/system/staticstub/tests.sh
index 0d05558740..84c1c868b1 100755
--- a/bin/tests/system/staticstub/tests.sh
+++ b/bin/tests/system/staticstub/tests.sh
@@ -203,5 +203,15 @@ grep "2nd example org data" dig.out.ns2.test$n > /dev/null || ret=1
 if [ $ret != 0 ]; then echo "I:failed"; fi
 status=`expr $status + $ret`
 
+n=`expr $n + 1`
+echo "I:checking static-stub of a undelegated tld resolves after DS query ($n)"
+ret=0
+$DIG undelegated. @10.53.0.2 ds -p 5300 > dig.out.ns2.ds.test$n
+$DIG undelegated. @10.53.0.2 soa -p 5300 > dig.out.ns2.soa.test$n
+grep "status: NXDOMAIN" dig.out.ns2.ds.test$n > /dev/null || ret=1
+grep "status: NOERROR" dig.out.ns2.soa.test$n > /dev/null || ret=1
+if [ $ret != 0 ]; then echo "I:failed"; fi
+status=`expr $status + $ret`
+
 echo "I:exit status: $status"
 exit $status
diff --git a/config.h.in b/config.h.in
index 0182145366..eba5191f6c 100644
--- a/config.h.in
+++ b/config.h.in
@@ -470,6 +470,9 @@ int sigwait(const unsigned int *set, int *sig);
 /* Enable DNS Response Rate Limiting */
 #undef USE_RRL
 
+/* Define to enable very verbose query trace logging. */
+#undef WANT_QUERYTRACE
+
 /* define if idnkit support is to be included. */
 #undef WITH_IDN
 
diff --git a/configure b/configure
index de1f882c07..677c1ad664 100755
--- a/configure
+++ b/configure
@@ -1006,6 +1006,7 @@ with_libiconv
 with_iconv
 with_idnlib
 with_atf
+enable_querytrace
 with_dlopen
 with_dlz_postgres
 with_dlz_mysql
@@ -1679,6 +1680,7 @@ Optional Features:
   --disable-rpz-nsdname	  disable rpz-nsdname rules [default=enabled]
   --enable-filter-aaaa    enable filtering of AAAA records over IPv4
 			  [default=no]
+  --enable-querytrace     enable very verbose query trace logging [default=no]
   --enable-full-report	  report values of all configure options
 
 Optional Packages:
@@ -13720,6 +13722,8 @@ $as_echo_n "checking whether linking with OpenSSL requires -ldl... " >&6; }
 /* end confdefs.h.  */
 
 #include <openssl/err.h>
+#include <openssl/dso.h>
+
 int
 main ()
 {
@@ -13737,6 +13741,7 @@ else
 /* end confdefs.h.  */
 
 #include <openssl/err.h>
+#include <openssl/dso.h>
 
 int
 main ()
@@ -19453,6 +19458,34 @@ fi
 done
 
 
+#
+# was --enable-querytrace specified?
+#
+# Check whether --enable-querytrace was given.
+if test "${enable_querytrace+set}" = set; then :
+  enableval=$enable_querytrace; want_querytrace="$enableval"
+else
+  want_querytrace="no"
+fi
+
+
+case "$want_querytrace" in
+yes)
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+$as_echo "#define WANT_QUERYTRACE 1" >>confdefs.h
+
+	;;
+no)
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	;;
+*)
+	as_fn_error $? "\"--enable-querytrace requires yes or no\"" "$LINENO" 5
+	;;
+esac
+
 #
 # Substitutions
 #
@@ -23139,6 +23172,8 @@ test "$want_symtable" = "minimal" && \
     echo "    Use symbol table for backtrace, named only (--enable-symtable)"
 test "$want_symtable" = "yes" -o "$want_symtable" = "all" && \
     echo "    Use symbol table for backtrace, all binaries (--enable-symtable=all)"
+test "$want_querytrace" = "yes" && \
+    echo "    Very verbose query trace logging (--enable-querytrace)"
 test "$atf" = "no" || echo "    Automated Testing Framework (--with-atf)"
 
 # these lines are only printed if run with --enable-full-report
@@ -23186,6 +23221,8 @@ test "$enable_fixed" = "yes" || \
     echo "    Allow 'fixed' rrset-order (--enable-fixed-rrset)"
 test "$want_backtrace" = "yes" || \
     echo "    Print backtrace on crash (--enable-backtrace)"
+test "$want_querytrace" = "yes" || \
+    echo "    Very verbose query trace logging (--enable-querytrace)"
 test "$atf" = "no" && echo "    Automated Testing Framework (--with-atf)"
 test "X$USE_OPENSSL" = "X" && \
 	echo "    OpenSSL cryptography/DNSSEC (--with-openssl)"
diff --git a/configure.in b/configure.in
index 53cfaf291e..d17e75e418 100644
--- a/configure.in
+++ b/configure.in
@@ -776,12 +776,15 @@ shared library configuration (e.g., LD_LIBRARY_PATH).)],
 
 		AC_MSG_CHECKING(whether linking with OpenSSL requires -ldl)
 		AC_TRY_LINK([
-#include <openssl/err.h>],
+#include <openssl/err.h>
+#include <openssl/dso.h>
+],
 [ DSO_METHOD_dlfcn(); ],
 		[AC_MSG_RESULT(no)],
 		[LIBS="$LIBS -ldl"
 		AC_TRY_LINK([
 #include <openssl/err.h>
+#include <openssl/dso.h>
 ],[ DSO_METHOD_dlfcn(); ],
 		[AC_MSG_RESULT(yes)
 		DNS_OPENSSL_LIBS="$DNS_OPENSSL_LIBS -ldl"
@@ -3517,6 +3520,26 @@ AC_SUBST(UNITTESTS)
 AC_CHECK_HEADERS(locale.h)
 AC_CHECK_FUNCS(setlocale)
 
+#
+# was --enable-querytrace specified?
+#
+AC_ARG_ENABLE(querytrace,
+	[  --enable-querytrace     enable very verbose query trace logging [[default=no]]],
+	want_querytrace="$enableval", want_querytrace="no")
+
+case "$want_querytrace" in
+yes)
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(WANT_QUERYTRACE, 1, [Define to enable very verbose query trace logging.])
+	;;
+no)
+	AC_MSG_RESULT(no)
+	;;
+*)
+	AC_MSG_ERROR("--enable-querytrace requires yes or no")
+	;;
+esac
+
 #
 # Substitutions
 #
@@ -4068,6 +4091,8 @@ test "$want_symtable" = "minimal" && \
     echo "    Use symbol table for backtrace, named only (--enable-symtable)"
 test "$want_symtable" = "yes" -o "$want_symtable" = "all" && \
     echo "    Use symbol table for backtrace, all binaries (--enable-symtable=all)"
+test "$want_querytrace" = "yes" && \
+    echo "    Very verbose query trace logging (--enable-querytrace)"
 test "$atf" = "no" || echo "    Automated Testing Framework (--with-atf)"
 
 # these lines are only printed if run with --enable-full-report 
@@ -4115,6 +4140,8 @@ test "$enable_fixed" = "yes" || \
     echo "    Allow 'fixed' rrset-order (--enable-fixed-rrset)"
 test "$want_backtrace" = "yes" || \
     echo "    Print backtrace on crash (--enable-backtrace)"
+test "$want_querytrace" = "yes" || \
+    echo "    Very verbose query trace logging (--enable-querytrace)"
 test "$atf" = "no" && echo "    Automated Testing Framework (--with-atf)"
 test "X$USE_OPENSSL" = "X" && \
 	echo "    OpenSSL cryptography/DNSSEC (--with-openssl)"
diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index 4268cc50f5..a8f1f6061f 100644
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -39,44 +39,7 @@
     <title>Security Fixes</title>
     <itemizedlist>
       <listitem>
-	<para>
-	  On servers configured to perform DNSSEC validation using
-	  managed trust anchors (i.e., keys configured explicitly
-	  via <command>managed-keys</command>, or implicitly 
-	  via <command>dnssec-validation auto;</command> or
-	  <command>dnssec-lookaside auto;</command>), revoking
-	  a trust anchor and sending a new untrusted replacement
-	  could cause <command>named</command> to crash with an
-	  assertion failure. This could occur in the event of a
-	  botched key rollover, or potentially as a result of a
-	  deliberate attack if the attacker was in position to
-	  monitor the victim's DNS traffic.
-	</para>
-	<para>
-	  This flaw was discovered by Jan-Piet Mens, and is
-	  disclosed in CVE-2015-1349. [RT #38344]
-	</para>
-      </listitem>
-      <listitem>
-	<para>
-	  A flaw in delegation handling could be exploited to put
-	  <command>named</command> into an infinite loop, in which
-	  each lookup of a name server triggered additional lookups
-	  of more name servers.  This has been addressed by placing
-	  limits on the number of levels of recursion
-	  <command>named</command> will allow (default 7), and
-	  on the number of queries that it will send before
-	  terminating a recursive query (default 50).
-	</para>
-	<para>
-	  The recursion depth limit is configured via the
-	  <option>max-recursion-depth</option> option, and the query limit
-	  via the <option>max-recursion-queries</option> option.
-	</para>
-	<para>
-	  The flaw was discovered by Florian Maury of ANSSI, and is
-	  disclosed in CVE-2014-8500. [RT #37580]
-	</para>
+	<para>None</para>
       </listitem>
     </itemizedlist>
   </sect2>
@@ -92,190 +55,20 @@
     <title>Feature Changes</title>
     <itemizedlist>
       <listitem>
-        <para>
-          NXDOMAIN responses to queries of type DS are now cached separately
-          from those for other types. This helps when using "grafted" zones
-          of type forward, for which the parent zone does not contain a
-          delegation, such as local top-level domains.  Previously a query
-          of type DS for such a zone could cause the zone apex to be cached
-          as NXDOMAIN, blocking all subsequent queries.  (Note: This
-          change is only helpful when DNSSEC validation is not enabled.
-          "Grafted" zones without a delegation in the parent are not a
-          recommended configuration.)
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          NOTIFY messages that are sent because a zone has been updated
-          are now given priority above NOTIFY messages that were scheduled
-          when the server started up. This should mitigate delays in zone
-          propagation when servers are restarted frequently.
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          Errors reported when running <command>rndc addzone</command>
-          (e.g., when a zone file cannot be loaded) have been clarified
-          to make it easier to diagnose problems.
-        </para>
-      </listitem>
-      <listitem>
-	<para>
-	  Added support for OPENPGPKEY type.
-        </para>
-      </listitem>
-      <listitem>
-	<para>
-	  When encountering an authoritative name server whose name is
-	  an alias pointing to another name, the resolver treats
-	  this as an error and skips to the next server. Previously
-	  this happened silently; now the error will be logged to
-	  the newly-created "cname" log category.
-	</para>
-      </listitem>
-      <listitem>
-	<para>
-	  If named is not configured to validate the answer then
-	  allow fallback to plain DNS on timeout even when we know
-	  the server supports EDNS.  This will allow the server to
-	  potentially resolve signed queries when TCP is being
-	  blocked.
-	</para>
+	<para>None</para>
       </listitem>
     </itemizedlist>
   </sect2>
   <sect2 id="relnotes_bugs">
     <title>Bug Fixes</title>
     <itemizedlist>
-      <listitem>
-        <para>
-	  <command>dig</command>, <command>host</command> and
-	  <command>nslookup</command> aborted when encountering
-	  a name which, after appending search list elements,
-	  exceeded 255 bytes. Such names are now skipped, but
-	  processing of other names will continue. [RT #36892]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  The error message generated when
-	  <command>named-checkzone</command> or
-	  <command>named-checkconf -z</command> encounters a
-	  <option>$TTL</option> directive without a value has
-	  been clarified. [RT #37138]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  Semicolon characters (;) included in TXT records were
-	  incorrectly escaped with a backslash when the record was
-	  displayed as text. This is actually only necessary when there
-	  are no quotation marks. [RT #37159]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  When files opened for writing by <command>named</command>,
-	  such as zone journal files, were referenced more than once
-	  in <filename>named.conf</filename>, it could lead to file
-	  corruption as multiple threads wrote to the same file. This
-	  is now detected when loading <filename>named.conf</filename>
-	  and reported as an error. [RT #37172]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          <command>dnssec-keygen -S</command> failed to generate successor
-          keys for some algorithm types (including ECDSA and GOST) due to
-          a difference in the content of private key files. This has been
-          corrected. [RT #37183]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          UPDATE messages that arrived too soon after
-          an <command>rndc thaw</command> could be lost. [RT #37233]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          Forwarding of UPDATE messages did not work when they were
-          signed with SIG(0); they resulted in a BADSIG response code.
-          [RT #37216]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-          When checking for updates to trust anchors listed in
-          <option>managed-keys</option>, <command>named</command>
-          now revalidates keys based on the current set of
-          active trust anchors, without relying on any cached
-          record of previous validation. [RT #37506]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  When NXDOMAIN redirection is in use, queries for a name
-	  that is present in the redirection zone but a type that
-	  is not present will now return NOERROR instead of NXDOMAIN.
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  When a zone contained a delegation to an IPv6 name server
-	  but not an IPv4 name server, it was possible for a memory
-	  reference to be left un-freed. This caused an assertion
-	  failure on server shutdown, but was otherwise harmless.
-	  [RT #37796]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  Due to an inadvertent removal of code in the previous
-	  release, when <command>named</command> encountered an
-	  authoritative name server which dropped all EDNS queries,
-	  it did not always try plain DNS. This has been corrected.
-	  [RT #37965]
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  A regression caused nsupdate to use the default recursive servers
-	  rather than the SOA MNAME server when sending the UPDATE.
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  Adjusted max-recursion-queries to better accommodate empty
-	  caches.
-        </para>
-      </listitem>
-      <listitem>
-        <para>
-	  Built-in "empty" zones did not correctly inherit the
-	  "allow-transfer" ACL from the options or view. [RT #38310]
-        </para>
-      </listitem>
-      <listitem>
-	<para>
-	  A mutex leak was fixed that could cause <command>named</command>
-	  processes to grow to very large sizes. [RT #38454]
-	</para>
-      </listitem>
-      <listitem>
-	<para>
-	  Fixed some bugs in RFC 5011 trust anchor management,
-	  including a memory leak and a possible loss of state
-	  information. [RT #38458]
-	</para>
-      </listitem>
       <listitem>
 	<para>
 	  Asynchronous zone loads were not handled correctly when the
 	  zone load was already in progress; this could trigger a crash
 	  in zt.c. [RT #37573]
-	</para>
-      </listitem>
+ 	</para>
+       </listitem>
     </itemizedlist>
   </sect2>
   <sect2 id="end_of_life">
diff --git a/lib/dns/adb.c b/lib/dns/adb.c
index da77bb6c92..c1a1d750cc 100644
--- a/lib/dns/adb.c
+++ b/lib/dns/adb.c
@@ -2474,7 +2474,6 @@ dns_adb_create(isc_mem_t *mem, dns_view_t *view, isc_timermgr_t *timermgr,
 				 nbuckets[11]);
 		adb->nentries = nbuckets[11];
 		adb->nnames = nbuckets[11];
-
 	}
 
 	isc_mem_attach(mem, &adb->mctx);
@@ -2667,6 +2666,8 @@ dns_adb_create(isc_mem_t *mem, dns_view_t *view, isc_timermgr_t *timermgr,
  fail0c:
 	DESTROYLOCK(&adb->lock);
  fail0b:
+	if (adb->excl != NULL)
+		isc_task_detach(&adb->excl);
 	isc_mem_putanddetach(&adb->mctx, adb, sizeof(dns_adb_t));
 
 	return (result);
diff --git a/lib/dns/dispatch.c b/lib/dns/dispatch.c
index 1c113eccb2..444bcedde3 100644
--- a/lib/dns/dispatch.c
+++ b/lib/dns/dispatch.c
@@ -1159,7 +1159,7 @@ free_sevent(isc_event_t *ev) {
 }
 
 static inline isc_socketevent_t *
-allocate_sevent(dns_dispatch_t *disp, isc_socket_t *socket,
+allocate_sevent(dns_dispatch_t *disp, isc_socket_t *sock,
 		isc_eventtype_t type, isc_taskaction_t action, const void *arg)
 {
 	isc_socketevent_t *ev;
@@ -1170,7 +1170,7 @@ allocate_sevent(dns_dispatch_t *disp, isc_socket_t *socket,
 		return (NULL);
 	DE_CONST(arg, deconst_arg);
 	ISC_EVENT_INIT(ev, sizeof(*ev), 0, NULL, type,
-		       action, deconst_arg, socket,
+		       action, deconst_arg, sock,
 		       free_sevent, disp->sepool);
 	ev->result = ISC_R_UNSET;
 	ISC_LINK_INIT(ev, ev_link);
@@ -1709,7 +1709,7 @@ static isc_result_t
 startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 	isc_result_t res;
 	isc_region_t region;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 
 	if (disp->shutting_down == 1)
 		return (ISC_R_SUCCESS);
@@ -1728,10 +1728,10 @@ startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 		return (ISC_R_SUCCESS);
 
 	if (dispsock != NULL)
-		socket = dispsock->socket;
+		sock = dispsock->socket;
 	else
-		socket = disp->socket;
-	INSIST(socket != NULL);
+		sock = disp->socket;
+	INSIST(sock != NULL);
 
 	switch (disp->socktype) {
 		/*
@@ -1745,7 +1745,7 @@ startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 		if (dispsock != NULL) {
 			isc_task_t *dt = dispsock->task;
 			isc_socketevent_t *sev =
-				allocate_sevent(disp, socket,
+				allocate_sevent(disp, sock,
 						ISC_SOCKEVENT_RECVDONE,
 						udp_exrecv, dispsock);
 			if (sev == NULL) {
@@ -1753,7 +1753,7 @@ startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 				return (ISC_R_NOMEMORY);
 			}
 
-			res = isc_socket_recv2(socket, &region, 1, dt, sev, 0);
+			res = isc_socket_recv2(sock, &region, 1, dt, sev, 0);
 			if (res != ISC_R_SUCCESS) {
 				free_buffer(disp, region.base, region.length);
 				return (res);
@@ -1761,7 +1761,7 @@ startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 		} else {
 			isc_task_t *dt = disp->task[0];
 			isc_socketevent_t *sev =
-				allocate_sevent(disp, socket,
+				allocate_sevent(disp, sock,
 						ISC_SOCKEVENT_RECVDONE,
 						udp_shrecv, disp);
 			if (sev == NULL) {
@@ -1769,7 +1769,7 @@ startrecv(dns_dispatch_t *disp, dispsocket_t *dispsock) {
 				return (ISC_R_NOMEMORY);
 			}
 
-			res = isc_socket_recv2(socket, &region, 1, dt, sev, 0);
+			res = isc_socket_recv2(sock, &region, 1, dt, sev, 0);
 			if (res != ISC_R_SUCCESS) {
 				free_buffer(disp, region.base, region.length);
 				disp->shutdown_why = res;
diff --git a/lib/dns/gssapictx.c b/lib/dns/gssapictx.c
index f28c07aba4..2f7023901e 100644
--- a/lib/dns/gssapictx.c
+++ b/lib/dns/gssapictx.c
@@ -216,7 +216,7 @@ static void
 check_config(const char *gss_name) {
 	const char *p;
 	krb5_context krb5_ctx;
-	char *krb5_realm = NULL;
+	char *krb5_realm_name = NULL;
 
 	if (strncasecmp(gss_name, "DNS/", 4) != 0) {
 		gss_log(ISC_LOG_ERROR, "tkey-gssapi-credential (%s) "
@@ -228,7 +228,7 @@ check_config(const char *gss_name) {
 		gss_log(ISC_LOG_ERROR, "Unable to initialise krb5 context");
 		return;
 	}
-	if (krb5_get_default_realm(krb5_ctx, &krb5_realm) != 0) {
+	if (krb5_get_default_realm(krb5_ctx, &krb5_realm_name) != 0) {
 		gss_log(ISC_LOG_ERROR, "Unable to get krb5 default realm");
 		krb5_free_context(krb5_ctx);
 		return;
@@ -240,10 +240,10 @@ check_config(const char *gss_name) {
 		krb5_free_context(krb5_ctx);
 		return;
 	}
-	if (strcasecmp(p + 1, krb5_realm) != 0) {
+	if (strcasecmp(p + 1, krb5_realm_name) != 0) {
 		gss_log(ISC_LOG_ERROR, "default realm from krb5.conf (%s) "
 			"does not match tkey-gssapi-credential (%s)",
-			krb5_realm, gss_name);
+			krb5_realm_name, gss_name);
 		krb5_free_context(krb5_ctx);
 		return;
 	}
diff --git a/lib/dns/include/dns/zone.h b/lib/dns/include/dns/zone.h
index 53b8302765..960dbb82e4 100644
--- a/lib/dns/include/dns/zone.h
+++ b/lib/dns/include/dns/zone.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2013  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2013, 2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
diff --git a/lib/dns/journal.c b/lib/dns/journal.c
index a21ec2e8a3..1b8761c8f3 100644
--- a/lib/dns/journal.c
+++ b/lib/dns/journal.c
@@ -555,7 +555,7 @@ journal_file_create(isc_mem_t *mctx, const char *filename) {
 }
 
 static isc_result_t
-journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
+journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t writable,
 	     isc_boolean_t create, dns_journal_t **journalp)
 {
 	FILE *fp = NULL;
@@ -579,7 +579,7 @@ journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
 	if (j->filename == NULL)
 		FAIL(ISC_R_NOMEMORY);
 
-	result = isc_stdio_open(j->filename, write ? "rb+" : "rb", &fp);
+	result = isc_stdio_open(j->filename, writable ? "rb+" : "rb", &fp);
 
 	if (result == ISC_R_FILENOTFOUND) {
 		if (create) {
@@ -669,7 +669,7 @@ journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
 	dns_decompress_init(&j->it.dctx, -1, DNS_DECOMPRESS_NONE);
 
 	j->state =
-		write ? JOURNAL_STATE_WRITE : JOURNAL_STATE_READ;
+		writable ? JOURNAL_STATE_WRITE : JOURNAL_STATE_READ;
 
 	*journalp = j;
 	return (ISC_R_SUCCESS);
@@ -696,12 +696,12 @@ dns_journal_open(isc_mem_t *mctx, const char *filename, unsigned int mode,
 	isc_result_t result;
 	size_t namelen;
 	char backup[1024];
-	isc_boolean_t write, create;
+	isc_boolean_t writable, create;
 
 	create = ISC_TF(mode & DNS_JOURNAL_CREATE);
-	write = ISC_TF(mode & (DNS_JOURNAL_WRITE|DNS_JOURNAL_CREATE));
+	writable = ISC_TF(mode & (DNS_JOURNAL_WRITE|DNS_JOURNAL_CREATE));
 
-	result = journal_open(mctx, filename, write, create, journalp);
+	result = journal_open(mctx, filename, writable, create, journalp);
 	if (result == ISC_R_NOTFOUND) {
 		namelen = strlen(filename);
 		if (namelen > 4U && strcmp(filename + namelen - 4, ".jnl") == 0)
@@ -711,7 +711,8 @@ dns_journal_open(isc_mem_t *mctx, const char *filename, unsigned int mode,
 					   (int)namelen, filename);
 		if (result != ISC_R_SUCCESS)
 			return (result);
-		result = journal_open(mctx, backup, write, write, journalp);
+		result = journal_open(mctx, backup, writable, writable,
+				      journalp);
 	}
 	return (result);
 }
diff --git a/lib/dns/private.c b/lib/dns/private.c
index c29522c529..1168c1e235 100644
--- a/lib/dns/private.c
+++ b/lib/dns/private.c
@@ -306,7 +306,7 @@ dns_private_totext(dns_rdata_t *private, isc_buffer_t *buf) {
 		unsigned char newbuf[DNS_NSEC3PARAM_BUFFERSIZE];
 		dns_rdata_t rdata = DNS_RDATA_INIT;
 		dns_rdata_nsec3param_t nsec3param;
-		isc_boolean_t remove, init, nonsec;
+		isc_boolean_t delete, init, nonsec;
 		isc_buffer_t b;
 
 		if (!dns_nsec3param_fromprivate(private, &rdata, nsec3buf,
@@ -315,7 +315,7 @@ dns_private_totext(dns_rdata_t *private, isc_buffer_t *buf) {
 
 		CHECK(dns_rdata_tostruct(&rdata, &nsec3param, NULL));
 
-		remove = ISC_TF((nsec3param.flags & DNS_NSEC3FLAG_REMOVE) != 0);
+		delete = ISC_TF((nsec3param.flags & DNS_NSEC3FLAG_REMOVE) != 0);
 		init = ISC_TF((nsec3param.flags & DNS_NSEC3FLAG_INITIAL) != 0);
 		nonsec = ISC_TF((nsec3param.flags & DNS_NSEC3FLAG_NONSEC) != 0);
 
@@ -326,7 +326,7 @@ dns_private_totext(dns_rdata_t *private, isc_buffer_t *buf) {
 
 		if (init)
 			isc_buffer_putstr(buf, "Pending NSEC3 chain ");
-		else if (remove)
+		else if (delete)
 			isc_buffer_putstr(buf, "Removing NSEC3 chain ");
 		else
 			isc_buffer_putstr(buf, "Creating NSEC3 chain ");
@@ -339,18 +339,18 @@ dns_private_totext(dns_rdata_t *private, isc_buffer_t *buf) {
 
 		CHECK(dns_rdata_totext(&rdata, NULL, buf));
 
-		if (remove && !nonsec)
+		if (delete && !nonsec)
 			isc_buffer_putstr(buf, " / creating NSEC chain");
 	} else if (private->length == 5) {
 		unsigned char alg = private->data[0];
 		dns_keytag_t keyid = (private->data[2] | private->data[1] << 8);
 		char keybuf[BUFSIZ], algbuf[DNS_SECALG_FORMATSIZE];
-		isc_boolean_t remove = ISC_TF(private->data[3] != 0);
+		isc_boolean_t delete = ISC_TF(private->data[3] != 0);
 		isc_boolean_t complete = ISC_TF(private->data[4] != 0);
 
-		if (remove && complete)
+		if (delete && complete)
 			isc_buffer_putstr(buf, "Done removing signatures for ");
-		else if (remove)
+		else if (delete)
 			isc_buffer_putstr(buf, "Removing signatures for ");
 		else if (complete)
 			isc_buffer_putstr(buf, "Done signing with ");
diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index a1398d3d1a..26bd9162b1 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -753,7 +753,7 @@ typedef struct rbtdb_dbiterator {
 
 static void free_rbtdb(dns_rbtdb_t *rbtdb, isc_boolean_t log,
 		       isc_event_t *event);
-static void overmem(dns_db_t *db, isc_boolean_t overmem);
+static void overmem(dns_db_t *db, isc_boolean_t over);
 #ifdef BIND9
 static void setnsec3parameters(dns_db_t *db, rbtdb_version_t *version);
 #endif
@@ -904,10 +904,10 @@ resign_sooner(void *v1, void *v2) {
  * This function sets the heap index into the header.
  */
 static void
-set_index(void *what, unsigned int index) {
+set_index(void *what, unsigned int idx) {
 	rdatasetheader_t *h = what;
 
-	h->heap_index = index;
+	h->heap_index = idx;
 }
 
 /*%
@@ -5580,11 +5580,11 @@ expirenode(dns_db_t *db, dns_dbnode_t *node, isc_stdtime_t now) {
 }
 
 static void
-overmem(dns_db_t *db, isc_boolean_t overmem) {
+overmem(dns_db_t *db, isc_boolean_t over) {
 	/* This is an empty callback.  See adb.c:water() */
 
 	UNUSED(db);
-	UNUSED(overmem);
+	UNUSED(over);
 
 	return;
 }
diff --git a/lib/dns/rdata/generic/keydata_65533.c b/lib/dns/rdata/generic/keydata_65533.c
index 2c6362fc85..886179e0eb 100644
--- a/lib/dns/rdata/generic/keydata_65533.c
+++ b/lib/dns/rdata/generic/keydata_65533.c
@@ -98,7 +98,7 @@ totext_keydata(ARGS_TOTEXT) {
 	char buf[sizeof("64000")];
 	unsigned int flags;
 	unsigned char algorithm;
-	unsigned long refresh, add, remove;
+	unsigned long refresh, add, delete;
 	char algbuf[DNS_NAME_FORMATSIZE];
 	const char *keyinfo;
 
@@ -122,9 +122,9 @@ totext_keydata(ARGS_TOTEXT) {
 	RETERR(str_totext(" ", target));
 
 	/* remove hold-down */
-	remove = uint32_fromregion(&sr);
+	delete = uint32_fromregion(&sr);
 	isc_region_consume(&sr, 4);
-	RETERR(dns_time32_totext(remove, target));
+	RETERR(dns_time32_totext(delete, target));
 	RETERR(str_totext(" ", target));
 
 	/* flags */
@@ -224,11 +224,11 @@ totext_keydata(ARGS_TOTEXT) {
 				RETERR(str_totext(abuf, target));
 			}
 
-			if (remove != 0U) {
+			if (delete != 0U) {
 				RETERR(str_totext(tctx->linebreak, target));
 				RETERR(str_totext("; removal pending: ",
 						  target));
-				isc_time_set(&t, remove, 0);
+				isc_time_set(&t, delete, 0);
 				isc_time_formathttptimestamp(&t, dbuf,
 							     sizeof(dbuf));
 				RETERR(str_totext(dbuf, target));
diff --git a/lib/dns/rdata/generic/soa_6.c b/lib/dns/rdata/generic/soa_6.c
index fe67d76f1e..7d72f587b0 100644
--- a/lib/dns/rdata/generic/soa_6.c
+++ b/lib/dns/rdata/generic/soa_6.c
@@ -95,16 +95,16 @@ totext_soa(ARGS_TOTEXT) {
 	isc_boolean_t sub;
 	int i;
 	isc_boolean_t multiline;
-	isc_boolean_t comment;
+	isc_boolean_t comm;
 
 	REQUIRE(rdata->type == 6);
 	REQUIRE(rdata->length != 0);
 
 	multiline = ISC_TF((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0);
 	if (multiline)
-		comment = ISC_TF((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0);
+		comm = ISC_TF((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0);
 	else
-		comment = ISC_FALSE;
+		comm = ISC_FALSE;
 
 
 	dns_name_init(&mname, NULL);
@@ -136,9 +136,9 @@ totext_soa(ARGS_TOTEXT) {
 		unsigned long num;
 		num = uint32_fromregion(&dregion);
 		isc_region_consume(&dregion, 4);
-		sprintf(buf, comment ? "%-10lu ; " : "%lu", num);
+		sprintf(buf, comm ? "%-10lu ; " : "%lu", num);
 		RETERR(str_totext(buf, target));
-		if (comment) {
+		if (comm) {
 			RETERR(str_totext(soa_fieldnames[i], target));
 			/* Print times in week/day/hour/minute/second form */
 			if (i >= 1) {
diff --git a/lib/dns/request.c b/lib/dns/request.c
index 59e166eb02..f9d3a8e621 100644
--- a/lib/dns/request.c
+++ b/lib/dns/request.c
@@ -144,7 +144,7 @@ dns_requestmgr_create(isc_mem_t *mctx,
 		      dns_requestmgr_t **requestmgrp)
 {
 	dns_requestmgr_t *requestmgr;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	isc_result_t result;
 	int i;
 	unsigned int dispattr;
@@ -156,7 +156,7 @@ dns_requestmgr_create(isc_mem_t *mctx,
 	REQUIRE(socketmgr != NULL);
 	REQUIRE(taskmgr != NULL);
 	REQUIRE(dispatchmgr != NULL);
-	UNUSED(socket);
+	UNUSED(sock);
 	if (dispatchv4 != NULL) {
 		dispattr = dns_dispatch_getattributes(dispatchv4);
 		REQUIRE((dispattr & DNS_DISPATCHATTR_UDP) != 0);
@@ -426,20 +426,20 @@ mgr_gethash(dns_requestmgr_t *requestmgr) {
 static inline isc_result_t
 req_send(dns_request_t *request, isc_task_t *task, isc_sockaddr_t *address) {
 	isc_region_t r;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	isc_result_t result;
 
 	req_log(ISC_LOG_DEBUG(3), "req_send: request %p", request);
 
 	REQUIRE(VALID_REQUEST(request));
-	socket = req_getsocket(request);
+	sock = req_getsocket(request);
 	isc_buffer_usedregion(request->query, &r);
 	/*
 	 * We could connect the socket when we are using an exclusive dispatch
 	 * as we do in resolver.c, but we prefer implementation simplicity
 	 * at this moment.
 	 */
-	result = isc_socket_sendto(socket, &r, task, req_senddone,
+	result = isc_socket_sendto(sock, &r, task, req_senddone,
 				  request, address, NULL);
 	if (result == ISC_R_SUCCESS)
 		request->flags |= DNS_REQUEST_F_SENDING;
@@ -513,25 +513,25 @@ create_tcp_dispatch(dns_requestmgr_t *requestmgr, isc_sockaddr_t *srcaddr,
 		    isc_sockaddr_t *destaddr, dns_dispatch_t **dispatchp)
 {
 	isc_result_t result;
-	isc_socket_t *socket = NULL;
+	isc_socket_t *sock = NULL;
 	isc_sockaddr_t src;
 	unsigned int attrs;
 	isc_sockaddr_t bind_any;
 
 	result = isc_socket_create(requestmgr->socketmgr,
 				   isc_sockaddr_pf(destaddr),
-				   isc_sockettype_tcp, &socket);
+				   isc_sockettype_tcp, &sock);
 	if (result != ISC_R_SUCCESS)
 		return (result);
 #ifndef BROKEN_TCP_BIND_BEFORE_CONNECT
 	if (srcaddr == NULL) {
 		isc_sockaddr_anyofpf(&bind_any,
 				     isc_sockaddr_pf(destaddr));
-		result = isc_socket_bind(socket, &bind_any, 0);
+		result = isc_socket_bind(sock, &bind_any, 0);
 	} else {
 		src = *srcaddr;
 		isc_sockaddr_setport(&src, 0);
-		result = isc_socket_bind(socket, &src, 0);
+		result = isc_socket_bind(sock, &src, 0);
 	}
 	if (result != ISC_R_SUCCESS)
 		goto cleanup;
@@ -545,11 +545,11 @@ create_tcp_dispatch(dns_requestmgr_t *requestmgr, isc_sockaddr_t *srcaddr,
 		attrs |= DNS_DISPATCHATTR_IPV6;
 	attrs |= DNS_DISPATCHATTR_MAKEQUERY;
 	result = dns_dispatch_createtcp(requestmgr->dispatchmgr,
-					socket, requestmgr->taskmgr,
+					sock, requestmgr->taskmgr,
 					4096, 2, 1, 1, 3, attrs,
 					dispatchp);
 cleanup:
-	isc_socket_detach(&socket);
+	isc_socket_detach(&sock);
 	return (result);
 }
 
@@ -680,7 +680,7 @@ dns_request_createraw3(dns_requestmgr_t *requestmgr, isc_buffer_t *msgbuf,
 {
 	dns_request_t *request = NULL;
 	isc_task_t *tclone = NULL;
-	isc_socket_t *socket = NULL;
+	isc_socket_t *sock = NULL;
 	isc_result_t result;
 	isc_mem_t *mctx;
 	dns_messageid_t	id;
@@ -764,8 +764,8 @@ dns_request_createraw3(dns_requestmgr_t *requestmgr, isc_buffer_t *msgbuf,
 	if (result != ISC_R_SUCCESS)
 		goto cleanup;
 
-	socket = req_getsocket(request);
-	INSIST(socket != NULL);
+	sock = req_getsocket(request);
+	INSIST(sock != NULL);
 
 	result = isc_buffer_allocate(mctx, &request->query,
 				     r.length + (tcp ? 2 : 0));
@@ -801,7 +801,7 @@ dns_request_createraw3(dns_requestmgr_t *requestmgr, isc_buffer_t *msgbuf,
 
 	request->destaddr = *destaddr;
 	if (tcp) {
-		result = isc_socket_connect(socket, destaddr, task,
+		result = isc_socket_connect(sock, destaddr, task,
 					    req_connected, request);
 		if (result != ISC_R_SUCCESS)
 			goto unlink;
@@ -886,12 +886,12 @@ dns_request_createvia3(dns_requestmgr_t *requestmgr, dns_message_t *message,
 {
 	dns_request_t *request = NULL;
 	isc_task_t *tclone = NULL;
-	isc_socket_t *socket = NULL;
+	isc_socket_t *sock = NULL;
 	isc_result_t result;
 	isc_mem_t *mctx;
 	dns_messageid_t	id;
 	isc_boolean_t tcp;
-	isc_boolean_t setkey = ISC_TRUE;
+	isc_boolean_t settsigkey = ISC_TRUE;
 
 	REQUIRE(VALID_REQUESTMGR(requestmgr));
 	REQUIRE(message != NULL);
@@ -960,11 +960,11 @@ dns_request_createvia3(dns_requestmgr_t *requestmgr, dns_message_t *message,
 					   requestmgr->socketmgr);
 	if (result != ISC_R_SUCCESS)
 		goto cleanup;
-	socket = req_getsocket(request);
-	INSIST(socket != NULL);
+	sock = req_getsocket(request);
+	INSIST(sock != NULL);
 
 	message->id = id;
-	if (setkey) {
+	if (settsigkey) {
 		result = dns_message_settsigkey(message, request->tsigkey);
 		if (result != ISC_R_SUCCESS)
 			goto cleanup;
@@ -978,9 +978,9 @@ dns_request_createvia3(dns_requestmgr_t *requestmgr, dns_message_t *message,
 		dns_message_renderreset(message);
 		dns_dispatch_removeresponse(&request->dispentry, NULL);
 		dns_dispatch_detach(&request->dispatch);
-		socket = NULL;
+		sock = NULL;
 		options |= DNS_REQUESTOPT_TCP;
-		setkey = ISC_FALSE;
+		settsigkey = ISC_FALSE;
 		goto use_tcp;
 	}
 	if (result != ISC_R_SUCCESS)
@@ -1007,7 +1007,7 @@ dns_request_createvia3(dns_requestmgr_t *requestmgr, dns_message_t *message,
 
 	request->destaddr = *destaddr;
 	if (tcp) {
-		result = isc_socket_connect(socket, destaddr, task,
+		result = isc_socket_connect(sock, destaddr, task,
 					    req_connected, request);
 		if (result != ISC_R_SUCCESS)
 			goto unlink;
@@ -1250,16 +1250,16 @@ dns_request_destroy(dns_request_t **requestp) {
 static isc_socket_t *
 req_getsocket(dns_request_t *request) {
 	unsigned int dispattr;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 
 	dispattr = dns_dispatch_getattributes(request->dispatch);
 	if ((dispattr & DNS_DISPATCHATTR_EXCLUSIVE) != 0) {
 		INSIST(request->dispentry != NULL);
-		socket = dns_dispatch_getentrysocket(request->dispentry);
+		sock = dns_dispatch_getentrysocket(request->dispentry);
 	} else
-		socket = dns_dispatch_getsocket(request->dispatch);
+		sock = dns_dispatch_getsocket(request->dispatch);
 
-	return (socket);
+	return (sock);
 }
 
 static void
@@ -1460,7 +1460,7 @@ req_destroy(dns_request_t *request) {
  */
 static void
 req_cancel(dns_request_t *request) {
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	unsigned int dispattr;
 
 	REQUIRE(VALID_REQUEST(request));
@@ -1475,19 +1475,19 @@ req_cancel(dns_request_t *request) {
 	if (request->timer != NULL)
 		isc_timer_detach(&request->timer);
 	dispattr = dns_dispatch_getattributes(request->dispatch);
-	socket = NULL;
+	sock = NULL;
 	if (DNS_REQUEST_CONNECTING(request) || DNS_REQUEST_SENDING(request)) {
 		if ((dispattr & DNS_DISPATCHATTR_EXCLUSIVE) != 0) {
 			if (request->dispentry != NULL) {
-				socket = dns_dispatch_getentrysocket(
+				sock = dns_dispatch_getentrysocket(
 					request->dispentry);
 			}
 		} else
-			socket = dns_dispatch_getsocket(request->dispatch);
-		if (DNS_REQUEST_CONNECTING(request) && socket != NULL)
-			isc_socket_cancel(socket, NULL, ISC_SOCKCANCEL_CONNECT);
-		if (DNS_REQUEST_SENDING(request) && socket != NULL)
-			isc_socket_cancel(socket, NULL, ISC_SOCKCANCEL_SEND);
+			sock = dns_dispatch_getsocket(request->dispatch);
+		if (DNS_REQUEST_CONNECTING(request) && sock != NULL)
+			isc_socket_cancel(sock, NULL, ISC_SOCKCANCEL_CONNECT);
+		if (DNS_REQUEST_SENDING(request) && sock != NULL)
+			isc_socket_cancel(sock, NULL, ISC_SOCKCANCEL_SEND);
 	}
 	if (request->dispentry != NULL)
 		dns_dispatch_removeresponse(&request->dispentry, NULL);
diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index 69c4078268..30f6ad4cdd 100644
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2014  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -64,8 +64,7 @@
 #include <dns/tsig.h>
 #include <dns/validator.h>
 
-#define DNS_RESOLVER_TRACE
-#ifdef DNS_RESOLVER_TRACE
+#ifdef WANT_QUERYTRACE
 #define RTRACE(m)       isc_log_write(dns_lctx, \
 				      DNS_LOGCATEGORY_RESOLVER, \
 				      DNS_LOGMODULE_RESOLVER, \
@@ -121,13 +120,16 @@
 				      query, query->fctx, \
 				      query->fctx->info, (m))
 #else
-#define RTRACE(m)
-#define RRTRACE(r, m)
-#define FCTXTRACE(m)
-#define FCTXTRACE2(m1, m2)
-#define FTRACE(m)
-#define QTRACE(m)
-#endif
+#define RTRACE(m) do { UNUSED(m); } while (0)
+#define RRTRACE(r, m) do { UNUSED(r); UNUSED(m); } while (0)
+#define FCTXTRACE(m) do { UNUSED(m); } while (0)
+#define FCTXTRACE2(m1, m2) do { UNUSED(m1); UNUSED(m2); } while (0)
+#define FCTXTRACE3(m1, res) do { UNUSED(m1); UNUSED(res); } while (0)
+#define FCTXTRACE4(m1, m2, res) \
+	do { UNUSED(m1); UNUSED(m2); UNUSED(res); } while (0)
+#define FTRACE(m) do { UNUSED(m); } while (0)
+#define QTRACE(m) do { UNUSED(m); } while (0)
+#endif /* WANT_QUERYTRACE */
 
 #define US_PER_SEC 1000000U
 /*
@@ -829,7 +831,7 @@ fctx_cancelquery(resquery_t **queryp, dns_dispatchevent_t **deventp,
 	unsigned int factor;
 	dns_adbfind_t *find;
 	dns_adbaddrinfo_t *addrinfo;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	isc_stdtime_t now;
 
 	query = *queryp;
@@ -952,9 +954,9 @@ fctx_cancelquery(resquery_t **queryp, dns_dispatchevent_t **deventp,
 					  ISC_SOCKCANCEL_CONNECT);
 		} else if (query->dispentry != NULL) {
 			INSIST(query->exclusivesocket);
-			socket = dns_dispatch_getentrysocket(query->dispentry);
-			if (socket != NULL)
-				isc_socket_cancel(socket, NULL,
+			sock = dns_dispatch_getentrysocket(query->dispentry);
+			if (sock != NULL)
+				isc_socket_cancel(sock, NULL,
 						  ISC_SOCKCANCEL_CONNECT);
 		}
 	} else if (RESQUERY_SENDING(query)) {
@@ -962,11 +964,11 @@ fctx_cancelquery(resquery_t **queryp, dns_dispatchevent_t **deventp,
 		 * Cancel the pending send.
 		 */
 		if (query->exclusivesocket && query->dispentry != NULL)
-			socket = dns_dispatch_getentrysocket(query->dispentry);
+			sock = dns_dispatch_getentrysocket(query->dispentry);
 		else
-			socket = dns_dispatch_getsocket(query->dispatch);
-		if (socket != NULL)
-			isc_socket_cancel(socket, NULL, ISC_SOCKCANCEL_SEND);
+			sock = dns_dispatch_getsocket(query->dispatch);
+		if (sock != NULL)
+			isc_socket_cancel(sock, NULL, ISC_SOCKCANCEL_SEND);
 	}
 
 	if (query->dispentry != NULL)
@@ -1725,7 +1727,7 @@ resquery_send(resquery_t *query) {
 	isc_region_t r;
 	dns_resolver_t *res;
 	isc_task_t *task;
-	isc_socket_t *socket;
+	isc_socket_t *sock;
 	isc_buffer_t tcpbuffer;
 	isc_sockaddr_t *address;
 	isc_buffer_t *buffer;
@@ -2027,16 +2029,16 @@ resquery_send(resquery_t *query) {
 	dns_message_reset(fctx->qmessage, DNS_MESSAGE_INTENTRENDER);
 
 	if (query->exclusivesocket)
-		socket = dns_dispatch_getentrysocket(query->dispentry);
+		sock = dns_dispatch_getentrysocket(query->dispentry);
 	else
-		socket = dns_dispatch_getsocket(query->dispatch);
+		sock = dns_dispatch_getsocket(query->dispatch);
 	/*
 	 * Send the query!
 	 */
 	if ((query->options & DNS_FETCHOPT_TCP) == 0) {
 		address = &query->addrinfo->sockaddr;
 		if (query->exclusivesocket) {
-			result = isc_socket_connect(socket, address, task,
+			result = isc_socket_connect(sock, address, task,
 						    resquery_udpconnected,
 						    query);
 			if (result != ISC_R_SUCCESS)
@@ -2054,7 +2056,7 @@ resquery_send(resquery_t *query) {
 	ISC_EVENT_INIT(&query->sendevent, sizeof(query->sendevent), 0, NULL,
 		       ISC_SOCKEVENT_SENDDONE, resquery_senddone, query,
 		       NULL, NULL, NULL);
-	result = isc_socket_sendto2(socket, &r, task, address, NULL,
+	result = isc_socket_sendto2(sock, &r, task, address, NULL,
 				    &query->sendevent, 0);
 	if (result != ISC_R_SUCCESS) {
 		if (connecting) {
@@ -2245,7 +2247,7 @@ fctx_finddone(isc_task_t *task, isc_event_t *event) {
 	isc_boolean_t want_done = ISC_FALSE;
 	isc_boolean_t bucket_empty = ISC_FALSE;
 	unsigned int bucketnum;
-	isc_boolean_t destroy = ISC_FALSE;
+	isc_boolean_t dodestroy = ISC_FALSE;
 
 	find = event->ev_sender;
 	fctx = event->ev_arg;
@@ -2286,7 +2288,7 @@ fctx_finddone(isc_task_t *task, isc_event_t *event) {
 
 		if (fctx->references == 0) {
 			bucket_empty = fctx_unlink(fctx);
-			destroy = ISC_TRUE;
+			dodestroy = ISC_TRUE;
 		}
 	}
 	UNLOCK(&res->buckets[bucketnum].lock);
@@ -2299,7 +2301,7 @@ fctx_finddone(isc_task_t *task, isc_event_t *event) {
 	} else if (want_done) {
 		FCTXTRACE("fetch failed in finddone(); return ISC_R_FAILURE");
 		fctx_done(fctx, ISC_R_FAILURE, __LINE__);
-	} else if (destroy) {
+	} else if (dodestroy) {
 		fctx_destroy(fctx);
 		if (bucket_empty)
 			empty_bucket(res);
@@ -2947,6 +2949,9 @@ possibly_mark(fetchctx_t *fctx, dns_adbaddrinfo_t *addr)
 	    bogus)
 		aborted = ISC_TRUE;
 
+	if (!isc_log_wouldlog(dns_lctx, ISC_LOG_DEBUG(3)))
+		return;
+
 	if (aborted) {
 		addr->flags |= FCTX_ADDRINFO_MARK;
 		msg = "ignoring blackholed / bogus server: ";
@@ -2967,9 +2972,6 @@ possibly_mark(fetchctx_t *fctx, dns_adbaddrinfo_t *addr)
 	} else
 		return;
 
-	if (!isc_log_wouldlog(dns_lctx, ISC_LOG_DEBUG(3)))
-		return;
-
 	isc_netaddr_fromsockaddr(&na, sa);
 	isc_netaddr_format(&na, buf, sizeof(buf));
 	FCTXTRACE2(msg, buf);
@@ -3399,7 +3401,7 @@ fctx_doshutdown(isc_task_t *task, isc_event_t *event) {
 	dns_resolver_t *res;
 	unsigned int bucketnum;
 	dns_validator_t *validator;
-	isc_boolean_t destroy = ISC_FALSE;
+	isc_boolean_t dodestroy = ISC_FALSE;
 
 	REQUIRE(VALID_FCTX(fctx));
 
@@ -3451,12 +3453,12 @@ fctx_doshutdown(isc_task_t *task, isc_event_t *event) {
 	if (fctx->references == 0 && fctx->pending == 0 &&
 	    fctx->nqueries == 0 && ISC_LIST_EMPTY(fctx->validators)) {
 		bucket_empty = fctx_unlink(fctx);
-		destroy = ISC_TRUE;
+		dodestroy = ISC_TRUE;
 	}
 
 	UNLOCK(&res->buckets[bucketnum].lock);
 
-	if (destroy) {
+	if (dodestroy) {
 		fctx_destroy(fctx);
 		if (bucket_empty)
 			empty_bucket(res);
@@ -3469,7 +3471,7 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
 	isc_boolean_t done = ISC_FALSE, bucket_empty = ISC_FALSE;
 	dns_resolver_t *res;
 	unsigned int bucketnum;
-	isc_boolean_t destroy = ISC_FALSE;
+	isc_boolean_t dodestroy = ISC_FALSE;
 
 	REQUIRE(VALID_FCTX(fctx));
 
@@ -3503,7 +3505,7 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
 			 * It's now safe to destroy this fctx.
 			 */
 			bucket_empty = fctx_unlink(fctx);
-			destroy = ISC_TRUE;
+			dodestroy = ISC_TRUE;
 		}
 		done = ISC_TRUE;
 	} else {
@@ -3525,7 +3527,7 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
 	if (!done) {
 		isc_result_t result;
 
-		INSIST(!destroy);
+		INSIST(!dodestroy);
 
 		/*
 		 * All is well.  Start working on the fetch.
@@ -3535,7 +3537,7 @@ fctx_start(isc_task_t *task, isc_event_t *event) {
 			fctx_done(fctx, result, __LINE__);
 		else
 			fctx_try(fctx, ISC_FALSE, ISC_FALSE);
-	} else if (destroy) {
+	} else if (dodestroy) {
 			fctx_destroy(fctx);
 		if (bucket_empty)
 			empty_bucket(res);
@@ -4110,7 +4112,7 @@ maybe_destroy(fetchctx_t *fctx, isc_boolean_t locked) {
 	isc_boolean_t bucket_empty = ISC_FALSE;
 	dns_resolver_t *res = fctx->res;
 	dns_validator_t *validator, *next_validator;
-	isc_boolean_t destroy = ISC_FALSE;
+	isc_boolean_t dodestroy = ISC_FALSE;
 
 	REQUIRE(SHUTTINGDOWN(fctx));
 
@@ -4128,12 +4130,12 @@ maybe_destroy(fetchctx_t *fctx, isc_boolean_t locked) {
 
 	if (fctx->references == 0 && ISC_LIST_EMPTY(fctx->validators)) {
 		bucket_empty = fctx_unlink(fctx);
-		destroy = ISC_TRUE;
+		dodestroy = ISC_TRUE;
 	}
  unlock:
 	if (!locked)
 		UNLOCK(&res->buckets[bucketnum].lock);
-	if (destroy)
+	if (dodestroy)
 		fctx_destroy(fctx);
 	return (bucket_empty);
 }
@@ -7480,7 +7482,6 @@ resquery_response(isc_task_t *task, isc_event_t *event) {
 			 */
 			result = answer_response(fctx);
 			if (result != ISC_R_SUCCESS)
-				FCTXTRACE("answer_response (!NS)");
 				FCTXTRACE3("answer_response (!NS)", result);
 		} else {
 			if (fctx->type == dns_rdatatype_ns) {
@@ -8463,7 +8464,7 @@ dns_resolver_createfetch3(dns_resolver_t *res, dns_name_t *name,
 	unsigned int count = 0;
 	unsigned int spillat;
 	unsigned int spillatmin;
-	isc_boolean_t destroy = ISC_FALSE;
+	isc_boolean_t dodestroy = ISC_FALSE;
 
 	UNUSED(forwarders);
 
@@ -8568,14 +8569,14 @@ dns_resolver_createfetch3(dns_resolver_t *res, dns_name_t *name,
 			 * since we know we're not exiting.
 			 */
 			(void)fctx_unlink(fctx);
-			destroy = ISC_TRUE;
+			dodestroy = ISC_TRUE;
 		}
 	}
 
  unlock:
 	UNLOCK(&res->buckets[bucketnum].lock);
 
-	if (destroy)
+	if (dodestroy)
 		fctx_destroy(fctx);
 
 	if (result == ISC_R_SUCCESS) {
diff --git a/lib/dns/sdb.c b/lib/dns/sdb.c
index 191fda219f..4589994113 100644
--- a/lib/dns/sdb.c
+++ b/lib/dns/sdb.c
@@ -1246,9 +1246,9 @@ ispersistent(dns_db_t *db) {
 }
 
 static void
-overmem(dns_db_t *db, isc_boolean_t overmem) {
+overmem(dns_db_t *db, isc_boolean_t over) {
 	UNUSED(db);
-	UNUSED(overmem);
+	UNUSED(over);
 }
 
 static void
diff --git a/lib/dns/sdlz.c b/lib/dns/sdlz.c
index 9d4e615802..5e9575c05d 100644
--- a/lib/dns/sdlz.c
+++ b/lib/dns/sdlz.c
@@ -1190,9 +1190,9 @@ ispersistent(dns_db_t *db) {
 }
 
 static void
-overmem(dns_db_t *db, isc_boolean_t overmem) {
+overmem(dns_db_t *db, isc_boolean_t over) {
 	UNUSED(db);
-	UNUSED(overmem);
+	UNUSED(over);
 }
 
 static void
diff --git a/lib/dns/spnego.c b/lib/dns/spnego.c
index 2da79f8b55..d26430c7cf 100644
--- a/lib/dns/spnego.c
+++ b/lib/dns/spnego.c
@@ -372,7 +372,7 @@ gssapi_spnego_decapsulate(OM_uint32 *,
 /* mod_auth_kerb.c */
 
 static int
-cmp_gss_type(gss_buffer_t token, gss_OID oid)
+cmp_gss_type(gss_buffer_t token, gss_OID gssoid)
 {
 	unsigned char *p;
 	size_t len;
@@ -392,10 +392,10 @@ cmp_gss_type(gss_buffer_t token, gss_OID oid)
 	if (*p++ != 0x06)
 		return (GSS_S_DEFECTIVE_TOKEN);
 
-	if (((OM_uint32) *p++) != oid->length)
+	if (((OM_uint32) *p++) != gssoid->length)
 		return (GSS_S_DEFECTIVE_TOKEN);
 
-	return (memcmp(p, oid->elements, oid->length));
+	return (memcmp(p, gssoid->elements, gssoid->length));
 }
 
 /* accept_sec_context.c */
diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index fef4b28998..147c9d65e7 100644
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -17050,7 +17050,7 @@ keydone(isc_task_t *task, isc_event_t *event) {
 	dns_dbnode_t *node = NULL;
 	dns_rdataset_t rdataset;
 	dns_diff_t diff;
-	struct keydone *keydone = (struct keydone *)event;
+	struct keydone *kd = (struct keydone *)event;
 	dns_update_log_t log = { update_log_cb, NULL };
 	isc_boolean_t clear_pending = ISC_FALSE;
 
@@ -17102,7 +17102,7 @@ keydone(isc_task_t *task, isc_event_t *event) {
 
 		dns_rdataset_current(&rdataset, &rdata);
 
-		if (keydone->all) {
+		if (kd->all) {
 			if (rdata.length == 5 && rdata.data[0] != 0 &&
 			       rdata.data[3] == 0 && rdata.data[4] == 1)
 				found = ISC_TRUE;
@@ -17112,7 +17112,7 @@ keydone(isc_task_t *task, isc_event_t *event) {
 				clear_pending = ISC_TRUE;
 			}
 		} else if (rdata.length == 5 &&
-			   memcmp(rdata.data, keydone->data, 5) == 0)
+			   memcmp(rdata.data, kd->data, 5) == 0)
 			found = ISC_TRUE;
 
 		if (found)
diff --git a/lib/isc/backtrace.c b/lib/isc/backtrace.c
index 2a51042147..f6cc1e8406 100644
--- a/lib/isc/backtrace.c
+++ b/lib/isc/backtrace.c
@@ -221,17 +221,17 @@ isc_backtrace_gettrace(void **addrs, int maxaddrs, int *nframes) {
 #endif
 
 isc_result_t
-isc_backtrace_getsymbolfromindex(int index, const void **addrp,
+isc_backtrace_getsymbolfromindex(int idx, const void **addrp,
 				 const char **symbolp)
 {
 	REQUIRE(addrp != NULL && *addrp == NULL);
 	REQUIRE(symbolp != NULL && *symbolp == NULL);
 
-	if (index < 0 || index >= isc__backtrace_nsymbols)
+	if (idx < 0 || idx >= isc__backtrace_nsymbols)
 		return (ISC_R_RANGE);
 
-	*addrp = isc__backtrace_symtable[index].addr;
-	*symbolp = isc__backtrace_symtable[index].symbol;
+	*addrp = isc__backtrace_symtable[idx].addr;
+	*symbolp = isc__backtrace_symtable[idx].symbol;
 	return (ISC_R_SUCCESS);
 }
 
diff --git a/lib/isc/heap.c b/lib/isc/heap.c
index 9d4fd28adc..589885d9b5 100644
--- a/lib/isc/heap.c
+++ b/lib/isc/heap.c
@@ -74,7 +74,7 @@ struct isc_heap {
 
 isc_result_t
 isc_heap_create(isc_mem_t *mctx, isc_heapcompare_t compare,
-		isc_heapindex_t index, unsigned int size_increment,
+		isc_heapindex_t idx, unsigned int size_increment,
 		isc_heap_t **heapp)
 {
 	isc_heap_t *heap;
@@ -96,7 +96,7 @@ isc_heap_create(isc_mem_t *mctx, isc_heapcompare_t compare,
 	heap->last = 0;
 	heap->array = NULL;
 	heap->compare = compare;
-	heap->index = index;
+	heap->index = idx;
 
 	*heapp = heap;
 
@@ -203,14 +203,14 @@ isc_heap_insert(isc_heap_t *heap, void *elt) {
 }
 
 void
-isc_heap_delete(isc_heap_t *heap, unsigned int index) {
+isc_heap_delete(isc_heap_t *heap, unsigned int idx) {
 	void *elt;
 	isc_boolean_t less;
 
 	REQUIRE(VALID_HEAP(heap));
-	REQUIRE(index >= 1 && index <= heap->last);
+	REQUIRE(idx >= 1 && idx <= heap->last);
 
-	if (index == heap->last) {
+	if (idx == heap->last) {
 		heap->array[heap->last] = NULL;
 		heap->last--;
 	} else {
@@ -218,38 +218,38 @@ isc_heap_delete(isc_heap_t *heap, unsigned int index) {
 		heap->array[heap->last] = NULL;
 		heap->last--;
 
-		less = heap->compare(elt, heap->array[index]);
-		heap->array[index] = elt;
+		less = heap->compare(elt, heap->array[idx]);
+		heap->array[idx] = elt;
 		if (less)
-			float_up(heap, index, heap->array[index]);
+			float_up(heap, idx, heap->array[idx]);
 		else
-			sink_down(heap, index, heap->array[index]);
+			sink_down(heap, idx, heap->array[idx]);
 	}
 }
 
 void
-isc_heap_increased(isc_heap_t *heap, unsigned int index) {
+isc_heap_increased(isc_heap_t *heap, unsigned int idx) {
 	REQUIRE(VALID_HEAP(heap));
-	REQUIRE(index >= 1 && index <= heap->last);
+	REQUIRE(idx >= 1 && idx <= heap->last);
 
-	float_up(heap, index, heap->array[index]);
+	float_up(heap, idx, heap->array[idx]);
 }
 
 void
-isc_heap_decreased(isc_heap_t *heap, unsigned int index) {
+isc_heap_decreased(isc_heap_t *heap, unsigned int idx) {
 	REQUIRE(VALID_HEAP(heap));
-	REQUIRE(index >= 1 && index <= heap->last);
+	REQUIRE(idx >= 1 && idx <= heap->last);
 
-	sink_down(heap, index, heap->array[index]);
+	sink_down(heap, idx, heap->array[idx]);
 }
 
 void *
-isc_heap_element(isc_heap_t *heap, unsigned int index) {
+isc_heap_element(isc_heap_t *heap, unsigned int idx) {
 	REQUIRE(VALID_HEAP(heap));
-	REQUIRE(index >= 1);
+	REQUIRE(idx >= 1);
 
-	if (index <= heap->last)
-		return (heap->array[index]);
+	if (idx <= heap->last)
+		return (heap->array[idx]);
 	return (NULL);
 }
 
diff --git a/lib/isc/include/isc/app.h b/lib/isc/include/isc/app.h
index 53810859ce..7a2f68b0dc 100644
--- a/lib/isc/include/isc/app.h
+++ b/lib/isc/include/isc/app.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2007, 2009, 2013  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2007, 2009, 2013, 2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -203,6 +203,16 @@ isc_app_run(void);
  *\li	ISC_R_RELOAD			Reload has been requested.
  */
 
+isc_boolean_t
+isc_app_isrunning(void);
+/*!<
+ * \brief Return if the ISC library application is running.
+ *
+ * Returns:
+ *\li	ISC_TRUE    App is running.
+ *\li	ISC_FALSE   App is not running.
+ */
+
 isc_result_t
 isc_app_ctxshutdown(isc_appctx_t *ctx);
 
diff --git a/lib/isc/include/isc/mem.h b/lib/isc/include/isc/mem.h
index 052bcd51ce..603267c972 100644
--- a/lib/isc/include/isc/mem.h
+++ b/lib/isc/include/isc/mem.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2012  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2012, 2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1997-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
diff --git a/lib/isc/include/isc/namespace.h b/lib/isc/include/isc/namespace.h
index 4cfb305ca0..5696bc8e9a 100644
--- a/lib/isc/include/isc/namespace.h
+++ b/lib/isc/include/isc/namespace.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2013  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2009-2013, 2015  Internet Systems Consortium, Inc. ("ISC")
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -29,6 +29,7 @@
 #define isc_app_ctxstart isc__app_ctxstart
 #define isc_app_onrun isc__app_onrun
 #define isc_app_run isc__app_run
+#define isc_app_isrunning isc__app_isrunning
 #define isc_app_ctxrun isc__app_ctxrun
 #define isc_app_shutdown isc__app_shutdown
 #define isc_app_ctxfinish isc__app_ctxfinish
diff --git a/lib/isc/pool.c b/lib/isc/pool.c
index 509abcb418..94d9d59a38 100644
--- a/lib/isc/pool.c
+++ b/lib/isc/pool.c
@@ -70,7 +70,7 @@ alloc_pool(isc_mem_t *mctx, unsigned int count, isc_pool_t **poolp) {
 
 isc_result_t
 isc_pool_create(isc_mem_t *mctx, unsigned int count,
-		   isc_pooldeallocator_t free,
+		   isc_pooldeallocator_t release,
 		   isc_poolinitializer_t init, void *initarg,
 		   isc_pool_t **poolp)
 {
@@ -85,7 +85,7 @@ isc_pool_create(isc_mem_t *mctx, unsigned int count,
 	if (result != ISC_R_SUCCESS)
 		return (result);
 
-	pool->free = free;
+	pool->free = release;
 	pool->init = init;
 	pool->initarg = initarg;
 
diff --git a/lib/isc/socket_api.c b/lib/isc/socket_api.c
index dca6c34fc3..d0f62c619f 100644
--- a/lib/isc/socket_api.c
+++ b/lib/isc/socket_api.c
@@ -210,10 +210,10 @@ isc_socket_gettype(isc_socket_t *sock) {
 }
 
 void
-isc_socket_setname(isc_socket_t *socket, const char *name, void *tag) {
-	REQUIRE(ISCAPI_SOCKET_VALID(socket));
+isc_socket_setname(isc_socket_t *sock, const char *name, void *tag) {
+	REQUIRE(ISCAPI_SOCKET_VALID(sock));
 
-	UNUSED(socket);		/* in case REQUIRE() is empty */
+	UNUSED(sock);		/* in case REQUIRE() is empty */
 	UNUSED(name);
 	UNUSED(tag);
 }
diff --git a/lib/isc/task.c b/lib/isc/task.c
index 02d6e2abaf..754443385b 100644
--- a/lib/isc/task.c
+++ b/lib/isc/task.c
@@ -156,6 +156,13 @@ struct isc__taskmgr {
 	isc_boolean_t			pause_requested;
 	isc_boolean_t			exclusive_requested;
 	isc_boolean_t			exiting;
+
+	/*
+	 * Multiple threads can read/write 'excl' at the same time, so we need
+	 * to protect the access.  We can't use 'lock' since isc_task_detach()
+	 * will try to acquire it.
+	 */
+	isc_mutex_t			excl_lock;
 	isc__task_t			*excl;
 #ifdef USE_SHARED_MANAGER
 	unsigned int			refs;
@@ -1307,6 +1314,7 @@ manager_free(isc__taskmgr_t *manager) {
 	isc_mem_free(manager->mctx, manager->threads);
 #endif /* USE_WORKER_THREADS */
 	DESTROYLOCK(&manager->lock);
+	DESTROYLOCK(&manager->excl_lock);
 	manager->common.impmagic = 0;
 	manager->common.magic = 0;
 	mctx = manager->mctx;
@@ -1359,6 +1367,11 @@ isc__taskmgr_create(isc_mem_t *mctx, unsigned int workers,
 	result = isc_mutex_init(&manager->lock);
 	if (result != ISC_R_SUCCESS)
 		goto cleanup_mgr;
+	result = isc_mutex_init(&manager->excl_lock);
+	if (result != ISC_R_SUCCESS) {
+		DESTROYLOCK(&manager->lock);
+		goto cleanup_mgr;
+	}
 
 #ifdef USE_WORKER_THREADS
 	manager->workers = 0;
@@ -1490,8 +1503,10 @@ isc__taskmgr_destroy(isc_taskmgr_t **managerp) {
 	/*
 	 * Detach the exclusive task before acquiring the manager lock
 	 */
+	LOCK(&manager->excl_lock);
 	if (manager->excl != NULL)
 		isc__task_detach((isc_task_t **) &manager->excl);
+	UNLOCK(&manager->excl_lock);
 
 	/*
 	 * Unlike elsewhere, we're going to hold this lock a long time.
@@ -1650,23 +1665,29 @@ isc__taskmgr_setexcltask(isc_taskmgr_t *mgr0, isc_task_t *task0) {
 
 	REQUIRE(VALID_MANAGER(mgr));
 	REQUIRE(VALID_TASK(task));
+	LOCK(&mgr->excl_lock);
 	if (mgr->excl != NULL)
 		isc__task_detach((isc_task_t **) &mgr->excl);
 	isc__task_attach(task0, (isc_task_t **) &mgr->excl);
+	UNLOCK(&mgr->excl_lock);
 }
 
 ISC_TASKFUNC_SCOPE isc_result_t
 isc__taskmgr_excltask(isc_taskmgr_t *mgr0, isc_task_t **taskp) {
 	isc__taskmgr_t *mgr = (isc__taskmgr_t *) mgr0;
+	isc_result_t result = ISC_R_SUCCESS;
 
 	REQUIRE(VALID_MANAGER(mgr));
 	REQUIRE(taskp != NULL && *taskp == NULL);
 
-	if (mgr->excl == NULL)
-		return (ISC_R_NOTFOUND);
+	LOCK(&mgr->excl_lock);
+	if (mgr->excl != NULL)
+		isc__task_attach((isc_task_t *) mgr->excl, taskp);
+	else
+		result = ISC_R_NOTFOUND;
+	UNLOCK(&mgr->excl_lock);
 
-	isc__task_attach((isc_task_t *) mgr->excl, taskp);
-	return (ISC_R_SUCCESS);
+	return (result);
 }
 
 ISC_TASKFUNC_SCOPE isc_result_t
diff --git a/lib/isc/unix/app.c b/lib/isc/unix/app.c
index aeebc31f9a..c17587879d 100644
--- a/lib/isc/unix/app.c
+++ b/lib/isc/unix/app.c
@@ -90,6 +90,7 @@ ISC_APPFUNC_SCOPE isc_result_t isc__app_onrun(isc_mem_t *mctx,
 					      void *arg);
 ISC_APPFUNC_SCOPE isc_result_t isc__app_ctxrun(isc_appctx_t *ctx);
 ISC_APPFUNC_SCOPE isc_result_t isc__app_run(void);
+ISC_APPFUNC_SCOPE isc_boolean_t isc__app_isrunning(void);
 ISC_APPFUNC_SCOPE isc_result_t isc__app_ctxshutdown(isc_appctx_t *ctx);
 ISC_APPFUNC_SCOPE isc_result_t isc__app_shutdown(void);
 ISC_APPFUNC_SCOPE isc_result_t isc__app_reload(void);
@@ -145,6 +146,7 @@ typedef struct isc__appctx {
 } isc__appctx_t;
 
 static isc__appctx_t isc_g_appctx;
+static isc_boolean_t is_running = ISC_FALSE;
 
 static struct {
 	isc_appmethods_t methods;
@@ -154,7 +156,8 @@ static struct {
 	 */
 #ifndef BIND9
 	void *run, *shutdown, *start, *onrun,
-	     *reload, *finish, *block, *unblock;
+	     *reload, *finish, *block, *unblock,
+	     *isrunning;
 #endif
 } appmethods = {
 	{
@@ -174,7 +177,7 @@ static struct {
 	(void *)isc__app_run, (void *)isc__app_shutdown,
 	(void *)isc__app_start, (void *)isc__app_onrun, (void *)isc__app_reload,
 	(void *)isc__app_finish, (void *)isc__app_block,
-	(void *)isc__app_unblock
+	(void *)isc__app_unblock, (void *)isc__app_isrunning
 #endif
 };
 
@@ -728,7 +731,18 @@ isc__app_ctxrun(isc_appctx_t *ctx0) {
 
 ISC_APPFUNC_SCOPE isc_result_t
 isc__app_run(void) {
-	return (isc__app_ctxrun((isc_appctx_t *)&isc_g_appctx));
+	isc_result_t result;
+
+	is_running = ISC_TRUE;
+	result = isc__app_ctxrun((isc_appctx_t *)&isc_g_appctx);
+	is_running = ISC_FALSE;
+
+	return (result);
+}
+
+ISC_APPFUNC_SCOPE isc_boolean_t
+isc__app_isrunning(void) {
+	return (is_running);
 }
 
 ISC_APPFUNC_SCOPE isc_result_t
diff --git a/lib/isc/unix/file.c b/lib/isc/unix/file.c
index 1b7d563d87..e1c200f459 100644
--- a/lib/isc/unix/file.c
+++ b/lib/isc/unix/file.c
@@ -135,12 +135,12 @@ isc_file_mode(const char *file, mode_t *modep) {
 }
 
 isc_result_t
-isc_file_getmodtime(const char *file, isc_time_t *time) {
+isc_file_getmodtime(const char *file, isc_time_t *modtime) {
 	isc_result_t result;
 	struct stat stats;
 
 	REQUIRE(file != NULL);
-	REQUIRE(time != NULL);
+	REQUIRE(modtime != NULL);
 
 	result = file_stats(file, &stats);
 
@@ -149,16 +149,16 @@ isc_file_getmodtime(const char *file, isc_time_t *time) {
 		 * XXXDCL some operating systems provide nanoseconds, too,
 		 * such as BSD/OS via st_mtimespec.
 		 */
-		isc_time_set(time, stats.st_mtime, 0);
+		isc_time_set(modtime, stats.st_mtime, 0);
 
 	return (result);
 }
 
 isc_result_t
-isc_file_settime(const char *file, isc_time_t *time) {
+isc_file_settime(const char *file, isc_time_t *when) {
 	struct timeval times[2];
 
-	REQUIRE(file != NULL && time != NULL);
+	REQUIRE(file != NULL && when != NULL);
 
 	/*
 	 * tv_sec is at least a 32 bit quantity on all platforms we're
@@ -170,7 +170,7 @@ isc_file_settime(const char *file, isc_time_t *time) {
 	 *   * isc_time_seconds is changed to be > 32 bits but long is 32 bits
 	 *      and isc_time_seconds has at least 33 significant bits.
 	 */
-	times[0].tv_sec = times[1].tv_sec = (long)isc_time_seconds(time);
+	times[0].tv_sec = times[1].tv_sec = (long)isc_time_seconds(when);
 
 	/*
 	 * Here is the real check for the high bit being set.
@@ -186,7 +186,7 @@ isc_file_settime(const char *file, isc_time_t *time) {
 	 * we can at least cast to signed so the IRIX compiler shuts up.
 	 */
 	times[0].tv_usec = times[1].tv_usec =
-		(isc_int32_t)(isc_time_nanoseconds(time) / 1000);
+		(isc_int32_t)(isc_time_nanoseconds(when) / 1000);
 
 	if (utimes(file, times) < 0)
 		return (isc__errno2result(errno));
diff --git a/lib/isc/unix/socket.c b/lib/isc/unix/socket.c
index 110eafe50f..07e9d524b0 100644
--- a/lib/isc/unix/socket.c
+++ b/lib/isc/unix/socket.c
@@ -5957,33 +5957,33 @@ isc__socketmgr_dispatch(isc_socketmgr_t *manager0, isc_socketwait_t *swait) {
 #ifdef BIND9
 void
 isc__socket_setname(isc_socket_t *socket0, const char *name, void *tag) {
-	isc__socket_t *socket = (isc__socket_t *)socket0;
+	isc__socket_t *sock = (isc__socket_t *)socket0;
 
 	/*
-	 * Name 'socket'.
+	 * Name 'sock'.
 	 */
 
-	REQUIRE(VALID_SOCKET(socket));
+	REQUIRE(VALID_SOCKET(sock));
 
-	LOCK(&socket->lock);
-	memset(socket->name, 0, sizeof(socket->name));
-	strncpy(socket->name, name, sizeof(socket->name) - 1);
-	socket->tag = tag;
-	UNLOCK(&socket->lock);
+	LOCK(&sock->lock);
+	memset(sock->name, 0, sizeof(sock->name));
+	strncpy(sock->name, name, sizeof(sock->name) - 1);
+	sock->tag = tag;
+	UNLOCK(&sock->lock);
 }
 
 ISC_SOCKETFUNC_SCOPE const char *
 isc__socket_getname(isc_socket_t *socket0) {
-	isc__socket_t *socket = (isc__socket_t *)socket0;
+	isc__socket_t *sock = (isc__socket_t *)socket0;
 
-	return (socket->name);
+	return (sock->name);
 }
 
 void *
 isc__socket_gettag(isc_socket_t *socket0) {
-	isc__socket_t *socket = (isc__socket_t *)socket0;
+	isc__socket_t *sock = (isc__socket_t *)socket0;
 
-	return (socket->tag);
+	return (sock->tag);
 }
 #endif	/* BIND9 */
 
@@ -5996,9 +5996,9 @@ isc__socket_register(void) {
 
 ISC_SOCKETFUNC_SCOPE int
 isc__socket_getfd(isc_socket_t *socket0) {
-	isc__socket_t *socket = (isc__socket_t *)socket0;
+	isc__socket_t *sock = (isc__socket_t *)socket0;
 
-	return ((short) socket->fd);
+	return ((short) sock->fd);
 }
 
 #if defined(HAVE_LIBXML2) && defined(BIND9)
diff --git a/lib/isc/win32/app.c b/lib/isc/win32/app.c
index 8274dea9a8..d61bf2301c 100644
--- a/lib/isc/win32/app.c
+++ b/lib/isc/win32/app.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2007, 2009, 2014  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004, 2007, 2009, 2014, 2015  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1999-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -196,6 +196,11 @@ isc__app_run(void) {
 	return (ISC_R_SUCCESS);
 }
 
+isc_boolean_t
+isc__app_isrunning(void) {
+	return (running);
+}
+
 isc_result_t
 isc__app_shutdown(void) {
 	isc_boolean_t want_kill = ISC_TRUE;
diff --git a/lib/isc/win32/libisc.def.in b/lib/isc/win32/libisc.def.in
index 35183a2a39..89713e890e 100644
--- a/lib/isc/win32/libisc.def.in
+++ b/lib/isc/win32/libisc.def.in
@@ -17,6 +17,7 @@ isc___mempool_put
 isc___socketmgr_maxudp
 isc__app_block
 isc__app_finish
+isc__app_isrunning
 isc__app_onrun
 isc__app_reload
 isc__app_run
diff --git a/util/copyrights b/util/copyrights
index 3cd43de419..5aead7adfd 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -79,7 +79,7 @@
 ./bin/dig/Makefile.in				MAKE	2000,2001,2002,2004,2005,2007,2009,2012,2013
 ./bin/dig/dig.1					MAN	DOCBOOK
 ./bin/dig/dig.c					C	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
-./bin/dig/dig.docbook				SGML	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2013,2014
+./bin/dig/dig.docbook				SGML	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2013,2014,2015
 ./bin/dig/dig.html				HTML	DOCBOOK
 ./bin/dig/dighost.c				C	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
 ./bin/dig/host.1				MAN	DOCBOOK
@@ -232,7 +232,7 @@
 ./bin/named/include/named/lwdclient.h		C	2000,2001,2004,2005,2007,2009
 ./bin/named/include/named/lwresd.h		C	2000,2001,2004,2005,2006,2007
 ./bin/named/include/named/lwsearch.h		C	2000,2001,2004,2005,2007
-./bin/named/include/named/main.h		C	1999,2000,2001,2002,2004,2005,2007,2009,2013
+./bin/named/include/named/main.h		C	1999,2000,2001,2002,2004,2005,2007,2009,2013,2015
 ./bin/named/include/named/notify.h		C	1999,2000,2001,2004,2005,2007,2009
 ./bin/named/include/named/ns_smf_globals.h	C	2005,2007
 ./bin/named/include/named/query.h		C	1999,2000,2001,2002,2004,2005,2007,2010,2011,2013,2014
@@ -266,7 +266,7 @@
 ./bin/named/named.conf.5			MAN	DOCBOOK
 ./bin/named/named.conf.docbook			SGML	2004,2005,2006,2007,2008,2009,2010,2011,2013,2014
 ./bin/named/named.conf.html			HTML	DOCBOOK
-./bin/named/named.docbook			SGML	2000,2001,2003,2004,2005,2006,2007,2008,2009,2011,2013,2014
+./bin/named/named.docbook			SGML	2000,2001,2003,2004,2005,2006,2007,2008,2009,2011,2013,2014,2015
 ./bin/named/named.html				HTML	DOCBOOK
 ./bin/named/notify.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007
 ./bin/named/query.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
@@ -289,7 +289,7 @@
 ./bin/named/win32/named.vcxproj.filters.in	X	2013
 ./bin/named/win32/named.vcxproj.in		X	2013,2015
 ./bin/named/win32/named.vcxproj.user		X	2013
-./bin/named/win32/ntservice.c			C	1999,2000,2001,2002,2004,2006,2007,2009,2011,2013,2014
+./bin/named/win32/ntservice.c			C	1999,2000,2001,2002,2004,2006,2007,2009,2011,2013,2014,2015
 ./bin/named/win32/os.c				C	1999,2000,2001,2002,2004,2005,2007,2008,2009,2012,2013,2014,2015
 ./bin/named/xfrout.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
 ./bin/named/zoneconf.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
@@ -297,7 +297,7 @@
 ./bin/nsupdate/Makefile.in			MAKE	2000,2001,2002,2004,2006,2007,2008,2009,2012,2013,2014
 ./bin/nsupdate/nsupdate.1			MAN	DOCBOOK
 ./bin/nsupdate/nsupdate.c			C	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
-./bin/nsupdate/nsupdate.docbook			SGML	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2014
+./bin/nsupdate/nsupdate.docbook			SGML	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2014,2015
 ./bin/nsupdate/nsupdate.html			HTML	DOCBOOK
 ./bin/nsupdate/win32/nsupdate.dsp.in		X	2001,2004,2005,2009,2013
 ./bin/nsupdate/win32/nsupdate.dsw		X	2001
@@ -357,7 +357,7 @@
 ./bin/python/dnssec-coverage.8			MAN	2013,2014
 ./bin/python/dnssec-coverage.docbook		SGML	2013,2014
 ./bin/python/dnssec-coverage.html		HTML	2013,2014
-./bin/python/dnssec-coverage.py.in		PYTHON	2013,2014
+./bin/python/dnssec-coverage.py.in		PYTHON	2013,2014,2015
 ./bin/rndc/.gitignore				X	2012,2014
 ./bin/rndc/Makefile.in				MAKE	2000,2001,2002,2004,2007,2009,2012
 ./bin/rndc/include/rndc/os.h			C	2001,2004,2005,2007,2009
@@ -684,7 +684,7 @@
 ./bin/tests/sym_test.c				C	1998,1999,2000,2001,2004,2005,2007
 ./bin/tests/system/.gitignore			X	2012,2014
 ./bin/tests/system/Makefile.in			MAKE	2000,2001,2004,2007,2008,2010,2011,2012,2013,2014
-./bin/tests/system/README			TXT.BRIEF	2000,2001,2004,2010,2011,2013
+./bin/tests/system/README			TXT.BRIEF	2000,2001,2004,2010,2011,2013,2015
 ./bin/tests/system/acl/clean.sh			SH	2008,2012,2014
 ./bin/tests/system/acl/ns2/named1.conf		CONF-C	2008
 ./bin/tests/system/acl/ns2/named2.conf		CONF-C	2008
@@ -1625,7 +1625,7 @@
 ./bin/tests/system/spf/ns1/named.conf		CONF-C	2013
 ./bin/tests/system/spf/ns1/spf.db		ZONE	2013
 ./bin/tests/system/spf/tests.sh			SH	2013,2014
-./bin/tests/system/start.pl			SH	2001,2004,2005,2006,2007,2008,2010,2011,2012,2013,2014
+./bin/tests/system/start.pl			SH	2001,2004,2005,2006,2007,2008,2010,2011,2012,2013,2014,2015
 ./bin/tests/system/start.sh			SH	2000,2001,2004,2007,2012
 ./bin/tests/system/staticstub/clean.sh		SH	2010,2012,2014
 ./bin/tests/system/staticstub/conf/bad01.conf	CONF-C	2010
@@ -2346,6 +2346,7 @@
 ./contrib/queryperf/missing/getnameinfo.c	X	2004
 ./contrib/queryperf/queryperf.c			X	2001,2002,2003,2004,2005,2007,2012,2013,2014
 ./contrib/queryperf/utils/gen-data-queryperf.py	X	2003,2008
+./contrib/scripts/dnssec-keyset.sh		X	2015
 ./contrib/sdb/bdb/README			X	2002
 ./contrib/sdb/bdb/bdb.c				X	2002,2011,2014
 ./contrib/sdb/bdb/bdb.h				X	2002
@@ -2747,7 +2748,7 @@
 ./lib/dns/include/dns/version.h			C	2001,2004,2005,2006,2007
 ./lib/dns/include/dns/view.h			C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
 ./lib/dns/include/dns/xfrin.h			C	1999,2000,2001,2003,2004,2005,2006,2007,2009
-./lib/dns/include/dns/zone.h			C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
+./lib/dns/include/dns/zone.h			C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2015
 ./lib/dns/include/dns/zonekey.h			C	2001,2004,2005,2006,2007
 ./lib/dns/include/dns/zt.h			C	1999,2000,2001,2002,2004,2005,2006,2007,2011
 ./lib/dns/include/dst/Makefile.in		MAKE	1998,1999,2000,2001,2004,2007,2012
@@ -2933,7 +2934,7 @@
 ./lib/dns/rdatasetiter.c			C	1999,2000,2001,2004,2005,2007
 ./lib/dns/rdataslab.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
 ./lib/dns/request.c				C	2000,2001,2002,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
-./lib/dns/resolver.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014
+./lib/dns/resolver.c				C	1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
 ./lib/dns/result.c				C	1998,1999,2000,2001,2002,2003,2004,2005,2007,2008,2009,2010,2011,2012,2013
 ./lib/dns/rootns.c				C	1999,2000,2001,2002,2004,2005,2007,2008,2010,2012,2013,2014,2015
 ./lib/dns/rpz.c					C	2011,2012,2013,2014,2015
@@ -3119,7 +3120,7 @@
 ./lib/isc/ia64/include/isc/atomic.h		C	2006,2007,2009,2012
 ./lib/isc/include/Makefile.in			MAKE	1998,1999,2000,2001,2004,2007,2012
 ./lib/isc/include/isc/Makefile.in		MAKE	1998,1999,2000,2001,2003,2004,2005,2006,2007,2008,2009,2012,2013,2014
-./lib/isc/include/isc/app.h			C	1999,2000,2001,2004,2005,2006,2007,2009,2013
+./lib/isc/include/isc/app.h			C	1999,2000,2001,2004,2005,2006,2007,2009,2013,2015
 ./lib/isc/include/isc/assertions.h		C	1997,1998,1999,2000,2001,2004,2005,2006,2007,2008,2009
 ./lib/isc/include/isc/backtrace.h		C	2009
 ./lib/isc/include/isc/base32.h			C	2008,2014
@@ -3155,11 +3156,11 @@
 ./lib/isc/include/isc/log.h			C	1999,2000,2001,2002,2004,2005,2006,2007,2009
 ./lib/isc/include/isc/magic.h			C	1999,2000,2001,2004,2005,2006,2007
 ./lib/isc/include/isc/md5.h			C	2000,2001,2004,2005,2006,2007,2009,2010
-./lib/isc/include/isc/mem.h			C	1997,1998,1999,2000,2001,2004,2005,2006,2007,2008,2009,2010,2011,2012
+./lib/isc/include/isc/mem.h			C	1997,1998,1999,2000,2001,2004,2005,2006,2007,2008,2009,2010,2011,2012,2015
 ./lib/isc/include/isc/msgcat.h			C	1999,2000,2001,2004,2005,2007
 ./lib/isc/include/isc/msgs.h			C	2000,2001,2002,2003,2004,2005,2006,2007,2008,2009
 ./lib/isc/include/isc/mutexblock.h		C	1999,2000,2001,2004,2005,2006,2007
-./lib/isc/include/isc/namespace.h		C	2009,2010,2011,2012,2013
+./lib/isc/include/isc/namespace.h		C	2009,2010,2011,2012,2013,2015
 ./lib/isc/include/isc/netaddr.h			C	1998,1999,2000,2001,2002,2004,2005,2006,2007,2009
 ./lib/isc/include/isc/netscope.h		C	2002,2004,2005,2006,2007,2009
 ./lib/isc/include/isc/ondestroy.h		C	2000,2001,2004,2005,2006,2007
@@ -3344,7 +3345,7 @@
 ./lib/isc/version.c				C	1998,1999,2000,2001,2004,2005,2007
 ./lib/isc/win32/DLLMain.c			C	2001,2004,2007
 ./lib/isc/win32/Makefile.in			MAKE	1999,2000,2001,2004,2007,2009,2012
-./lib/isc/win32/app.c				C	1999,2000,2001,2004,2007,2009,2014
+./lib/isc/win32/app.c				C	1999,2000,2001,2004,2007,2009,2014,2015
 ./lib/isc/win32/condition.c			C	1998,1999,2000,2001,2004,2006,2007
 ./lib/isc/win32/dir.c				C	1999,2000,2001,2004,2007,2008,2009,2011,2012,2013
 ./lib/isc/win32/entropy.c			C	2000,2001,2002,2004,2007,2009,2013