Update to 9.8.4-P1.

Security Fixes

   Prevents named from aborting with a require assertion failure
   on servers with DNS64 enabled.  These crashes might occur as a
   result of  specific queries that are received.

New Features

*  Elliptic Curve Digital Signature Algorithm keys and signatures in
   DNSSEC are now supported per RFC 6605. [RT #21918]

Feature Changes

*  Improves OpenSSL error logging [RT #29932]

*  nslookup now returns a nonzero exit code when it is unable to get
   an answer.  [RT #29492]

Other critical bug fixes are included.

Approved by:	delphij (mentor)
MFC after:	3 days
Security:	CVE-2012-5688
Sponsored by:	DK Hostmaster A/S

45 files changed, 182 insertions, 46 deletions

diff --git a/contrib/bind9/lib/isc/alpha/Makefile.in b/contrib/bind9/lib/isc/alpha/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/alpha/Makefile.in
+++ b/contrib/bind9/lib/isc/alpha/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/alpha/include/Makefile.in b/contrib/bind9/lib/isc/alpha/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/alpha/include/Makefile.in
+++ b/contrib/bind9/lib/isc/alpha/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/alpha/include/isc/Makefile.in b/contrib/bind9/lib/isc/alpha/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/alpha/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/alpha/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/api b/contrib/bind9/lib/isc/api
index 3b91551..18de29c 100644
--- a/contrib/bind9/lib/isc/api
+++ b/contrib/bind9/lib/isc/api
@@ -3,6 +3,6 @@
 # 9.7: 60-79
 # 9.8: 80-89
 # 9.9: 90-109
-LIBINTERFACE = 83
-LIBREVISION = 5
-LIBAGE = 0
+LIBINTERFACE = 85
+LIBREVISION = 0
+LIBAGE = 1
diff --git a/contrib/bind9/lib/isc/ia64/Makefile.in b/contrib/bind9/lib/isc/ia64/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/ia64/Makefile.in
+++ b/contrib/bind9/lib/isc/ia64/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/ia64/include/Makefile.in b/contrib/bind9/lib/isc/ia64/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/ia64/include/Makefile.in
+++ b/contrib/bind9/lib/isc/ia64/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/ia64/include/isc/Makefile.in b/contrib/bind9/lib/isc/ia64/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/ia64/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/ia64/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/ia64/include/isc/atomic.h b/contrib/bind9/lib/isc/ia64/include/isc/atomic.h
index 74df4c5..557941d 100644
--- a/contrib/bind9/lib/isc/ia64/include/isc/atomic.h
+++ b/contrib/bind9/lib/isc/ia64/include/isc/atomic.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2006, 2007, 2009, 2012  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
diff --git a/contrib/bind9/lib/isc/include/Makefile.in b/contrib/bind9/lib/isc/include/Makefile.in
index 04778d7..70c165e 100644
--- a/contrib/bind9/lib/isc/include/Makefile.in
+++ b/contrib/bind9/lib/isc/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/include/isc/file.h b/contrib/bind9/lib/isc/include/isc/file.h
index 8794065..38f78b7 100644
--- a/contrib/bind9/lib/isc/include/isc/file.h
+++ b/contrib/bind9/lib/isc/include/isc/file.h
@@ -25,6 +25,7 @@
 #include <stdio.h>
 
 #include <isc/lang.h>
+#include <isc/stat.h>
 #include <isc/types.h>
 
 ISC_LANG_BEGINDECLS
@@ -33,6 +34,9 @@ isc_result_t
 isc_file_settime(const char *file, isc_time_t *time);
 
 isc_result_t
+isc_file_mode(const char *file, mode_t *modep);
+
+isc_result_t
 isc_file_getmodtime(const char *file, isc_time_t *time);
 /*!<
  * \brief Get the time of last modification of a file.
@@ -97,15 +101,22 @@ isc_file_mktemplate(const char *path, char *buf, size_t buflen);
  *				of the path with the internal template string.
  */
 
-
 isc_result_t
 isc_file_openunique(char *templet, FILE **fp);
 isc_result_t
 isc_file_openuniqueprivate(char *templet, FILE **fp);
 isc_result_t
 isc_file_openuniquemode(char *templet, int mode, FILE **fp);
+isc_result_t
+isc_file_bopenunique(char *templet, FILE **fp);
+isc_result_t
+isc_file_bopenuniqueprivate(char *templet, FILE **fp);
+isc_result_t
+isc_file_bopenuniquemode(char *templet, int mode, FILE **fp);
 /*!<
  * \brief Create and open a file with a unique name based on 'templet'.
+ *	isc_file_bopen*() open the file in binary mode in Windows. 
+ *	isc_file_open*() open the file in text mode in Windows. 
  *
  * Notes:
  *\li	'template' is a reserved work in C++.  If you want to complain
diff --git a/contrib/bind9/lib/isc/include/isc/namespace.h b/contrib/bind9/lib/isc/include/isc/namespace.h
index 158cfe5..ae1801d 100644
--- a/contrib/bind9/lib/isc/include/isc/namespace.h
+++ b/contrib/bind9/lib/isc/include/isc/namespace.h
@@ -146,6 +146,8 @@
 #define isc_task_getcurrenttime isc__task_getcurrenttime
 #define isc_taskmgr_create isc__taskmgr_create
 #define isc_taskmgr_destroy isc__taskmgr_destroy
+#define isc_taskmgr_setexcltask isc__taskmgr_setexcltask
+#define isc_taskmgr_excltask isc__taskmgr_excltask
 #define isc_task_beginexclusive isc__task_beginexclusive
 #define isc_task_endexclusive isc__task_endexclusive
 
diff --git a/contrib/bind9/lib/isc/include/isc/task.h b/contrib/bind9/lib/isc/include/isc/task.h
index 36fca36..19d4783 100644
--- a/contrib/bind9/lib/isc/include/isc/task.h
+++ b/contrib/bind9/lib/isc/include/isc/task.h
@@ -106,6 +106,8 @@ typedef struct isc_taskmgrmethods {
 	isc_result_t	(*taskcreate)(isc_taskmgr_t *manager,
 				      unsigned int quantum,
 				      isc_task_t **taskp);
+	void (*setexcltask)(isc_taskmgr_t *mgr, isc_task_t *task);
+	isc_result_t (*excltask)(isc_taskmgr_t *mgr, isc_task_t **taskp);
 } isc_taskmgrmethods_t;
 
 typedef struct isc_taskmethods {
@@ -697,6 +699,31 @@ isc_taskmgr_destroy(isc_taskmgr_t **managerp);
  *	have been freed.
  */
 
+void
+isc_taskmgr_setexcltask(isc_taskmgr_t *mgr, isc_task_t *task);
+/*%<
+ * Set a task which will be used for all task-exclusive operations.
+ *
+ * Requires:
+ *\li	'manager' is a valid task manager.
+ *
+ *\li	'task' is a valid task.
+ */
+
+isc_result_t
+isc_taskmgr_excltask(isc_taskmgr_t *mgr, isc_task_t **taskp);
+/*%<
+ * Attach '*taskp' to the task set by isc_taskmgr_getexcltask().
+ * This task should be used whenever running in task-exclusive mode,
+ * so as to prevent deadlock between two exclusive tasks.
+ *
+ * Requires:
+ *\li	'manager' is a valid task manager.
+
+ *\li	taskp != NULL && *taskp == NULL
+ */
+
+
 #ifdef HAVE_LIBXML2
 
 void
diff --git a/contrib/bind9/lib/isc/mem.c b/contrib/bind9/lib/isc/mem.c
index 5b4b16c..1964b7a 100644
--- a/contrib/bind9/lib/isc/mem.c
+++ b/contrib/bind9/lib/isc/mem.c
@@ -1191,7 +1191,7 @@ isc___mem_putanddetach(isc_mem_t **ctxp, void *ptr, size_t size FLARG) {
 				oldsize -= ALIGNMENT_SIZE;
 			INSIST(oldsize == size);
 		}
-		isc_mem_free((isc_mem_t *)ctx, ptr);
+		isc__mem_free((isc_mem_t *)ctx, ptr FLARG_PASS);
 
 		MCTXLOCK(ctx, &ctx->lock);
 		ctx->references--;
@@ -1327,7 +1327,7 @@ isc___mem_put(isc_mem_t *ctx0, void *ptr, size_t size FLARG) {
 				oldsize -= ALIGNMENT_SIZE;
 			INSIST(oldsize == size);
 		}
-		isc_mem_free((isc_mem_t *)ctx, ptr);
+		isc__mem_free((isc_mem_t *)ctx, ptr FLARG_PASS);
 		return;
 	}
 
@@ -1592,7 +1592,11 @@ isc___mem_reallocate(isc_mem_t *ctx0, void *ptr, size_t size FLARG) {
 			oldsize = (((size_info *)ptr)[-1]).u.size;
 			INSIST(oldsize >= ALIGNMENT_SIZE);
 			oldsize -= ALIGNMENT_SIZE;
-			copysize = oldsize > size ? size : oldsize;
+			if ((isc_mem_debugging & ISC_MEM_DEBUGCTX) != 0) {
+				INSIST(oldsize >= ALIGNMENT_SIZE);
+				oldsize -= ALIGNMENT_SIZE;
+			}
+			copysize = (oldsize > size) ? size : oldsize;
 			memcpy(new_ptr, ptr, copysize);
 			isc__mem_free(ctx0, ptr FLARG_PASS);
 		}
diff --git a/contrib/bind9/lib/isc/mips/Makefile.in b/contrib/bind9/lib/isc/mips/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/mips/Makefile.in
+++ b/contrib/bind9/lib/isc/mips/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/mips/include/Makefile.in b/contrib/bind9/lib/isc/mips/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/mips/include/Makefile.in
+++ b/contrib/bind9/lib/isc/mips/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/mips/include/isc/Makefile.in b/contrib/bind9/lib/isc/mips/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/mips/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/mips/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/nls/Makefile.in b/contrib/bind9/lib/isc/nls/Makefile.in
index aca4a27..7bacf1c 100644
--- a/contrib/bind9/lib/isc/nls/Makefile.in
+++ b/contrib/bind9/lib/isc/nls/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2009, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1999-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/noatomic/Makefile.in b/contrib/bind9/lib/isc/noatomic/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/noatomic/Makefile.in
+++ b/contrib/bind9/lib/isc/noatomic/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/noatomic/include/Makefile.in b/contrib/bind9/lib/isc/noatomic/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/noatomic/include/Makefile.in
+++ b/contrib/bind9/lib/isc/noatomic/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/noatomic/include/isc/Makefile.in b/contrib/bind9/lib/isc/noatomic/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/noatomic/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/noatomic/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/nothreads/Makefile.in b/contrib/bind9/lib/isc/nothreads/Makefile.in
index 7e7abd6..540b243 100644
--- a/contrib/bind9/lib/isc/nothreads/Makefile.in
+++ b/contrib/bind9/lib/isc/nothreads/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007, 2009, 2010  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2009, 2010, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 2000, 2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/nothreads/include/Makefile.in b/contrib/bind9/lib/isc/nothreads/include/Makefile.in
index a52310a..662a72d 100644
--- a/contrib/bind9/lib/isc/nothreads/include/Makefile.in
+++ b/contrib/bind9/lib/isc/nothreads/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 2000, 2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/nothreads/include/isc/Makefile.in b/contrib/bind9/lib/isc/nothreads/include/isc/Makefile.in
index 3c9eab0..a2c347e 100644
--- a/contrib/bind9/lib/isc/nothreads/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/nothreads/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 2000, 2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/powerpc/Makefile.in b/contrib/bind9/lib/isc/powerpc/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/powerpc/Makefile.in
+++ b/contrib/bind9/lib/isc/powerpc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/powerpc/include/Makefile.in b/contrib/bind9/lib/isc/powerpc/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/powerpc/include/Makefile.in
+++ b/contrib/bind9/lib/isc/powerpc/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/powerpc/include/isc/Makefile.in b/contrib/bind9/lib/isc/powerpc/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/powerpc/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/powerpc/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/pthreads/Makefile.in b/contrib/bind9/lib/isc/pthreads/Makefile.in
index d6e7c76..9f66ef3 100644
--- a/contrib/bind9/lib/isc/pthreads/Makefile.in
+++ b/contrib/bind9/lib/isc/pthreads/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2009, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/pthreads/condition.c b/contrib/bind9/lib/isc/pthreads/condition.c
index 50281a2..9053cf0 100644
--- a/contrib/bind9/lib/isc/pthreads/condition.c
+++ b/contrib/bind9/lib/isc/pthreads/condition.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004, 2005, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1998-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -43,7 +43,14 @@ isc_condition_waituntil(isc_condition_t *c, isc_mutex_t *m, isc_time_t *t) {
 	 * POSIX defines a timespec's tv_sec as time_t.
 	 */
 	result = isc_time_secondsastimet(t, &ts.tv_sec);
-	if (result != ISC_R_SUCCESS)
+
+	/*
+	 * If we have a range error ts.tv_sec is most probably a signed
+	 * 32 bit value.  Set ts.tv_sec to INT_MAX.  This is a kludge.
+	 */
+	if (result == ISC_R_RANGE)
+		ts.tv_sec = INT_MAX;
+	else if (result != ISC_R_SUCCESS)
 		return (result);
 
 	/*!
diff --git a/contrib/bind9/lib/isc/pthreads/include/Makefile.in b/contrib/bind9/lib/isc/pthreads/include/Makefile.in
index 0303ab1..46c243e 100644
--- a/contrib/bind9/lib/isc/pthreads/include/Makefile.in
+++ b/contrib/bind9/lib/isc/pthreads/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/pthreads/include/isc/Makefile.in b/contrib/bind9/lib/isc/pthreads/include/isc/Makefile.in
index 11675ec..7cadcf4 100644
--- a/contrib/bind9/lib/isc/pthreads/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/pthreads/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/sparc64/Makefile.in b/contrib/bind9/lib/isc/sparc64/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/sparc64/Makefile.in
+++ b/contrib/bind9/lib/isc/sparc64/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/sparc64/include/Makefile.in b/contrib/bind9/lib/isc/sparc64/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/sparc64/include/Makefile.in
+++ b/contrib/bind9/lib/isc/sparc64/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/sparc64/include/isc/Makefile.in b/contrib/bind9/lib/isc/sparc64/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/sparc64/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/sparc64/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/task.c b/contrib/bind9/lib/isc/task.c
index f4e1265..a5f6ef9 100644
--- a/contrib/bind9/lib/isc/task.c
+++ b/contrib/bind9/lib/isc/task.c
@@ -152,6 +152,7 @@ struct isc__taskmgr {
 	unsigned int			tasks_running;
 	isc_boolean_t			exclusive_requested;
 	isc_boolean_t			exiting;
+	isc__task_t			*excl;
 #ifdef USE_SHARED_MANAGER
 	unsigned int			refs;
 #endif /* ISC_PLATFORM_USETHREADS */
@@ -221,6 +222,10 @@ isc__taskmgr_create(isc_mem_t *mctx, unsigned int workers,
 		    unsigned int default_quantum, isc_taskmgr_t **managerp);
 ISC_TASKFUNC_SCOPE void
 isc__taskmgr_destroy(isc_taskmgr_t **managerp);
+ISC_TASKFUNC_SCOPE void
+isc__taskmgr_setexcltask(isc_taskmgr_t *mgr0, isc_task_t *task0);
+ISC_TASKFUNC_SCOPE isc_result_t
+isc__taskmgr_excltask(isc_taskmgr_t *mgr0, isc_task_t **taskp);
 ISC_TASKFUNC_SCOPE isc_result_t
 isc__task_beginexclusive(isc_task_t *task);
 ISC_TASKFUNC_SCOPE void
@@ -261,7 +266,9 @@ static struct isc__taskmethods {
 
 static isc_taskmgrmethods_t taskmgrmethods = {
 	isc__taskmgr_destroy,
-	isc__task_create
+	isc__task_create,
+	isc__taskmgr_setexcltask,
+	isc__taskmgr_excltask
 };
 
 /***
@@ -1262,6 +1269,7 @@ isc__taskmgr_create(isc_mem_t *mctx, unsigned int workers,
 	manager->tasks_running = 0;
 	manager->exclusive_requested = ISC_FALSE;
 	manager->exiting = ISC_FALSE;
+	manager->excl = NULL;
 
 	isc_mem_attach(mctx, &manager->mctx);
 
@@ -1344,6 +1352,12 @@ isc__taskmgr_destroy(isc_taskmgr_t **managerp) {
 	 */
 
 	/*
+	 * Detach the exclusive task before acquiring the manager lock
+	 */
+	if (manager->excl != NULL)
+		isc__task_detach((isc_task_t **) &manager->excl);
+
+	/*
 	 * Unlike elsewhere, we're going to hold this lock a long time.
 	 * We need to do so, because otherwise the list of tasks could
 	 * change while we were traversing it.
@@ -1440,12 +1454,41 @@ isc__taskmgr_dispatch(isc_taskmgr_t *manager0) {
 
 #endif /* USE_WORKER_THREADS */
 
+ISC_TASKFUNC_SCOPE void
+isc__taskmgr_setexcltask(isc_taskmgr_t *mgr0, isc_task_t *task0) {
+	isc__taskmgr_t *mgr = (isc__taskmgr_t *) mgr0;
+	isc__task_t *task = (isc__task_t *) task0;
+
+	REQUIRE(VALID_MANAGER(mgr));
+	REQUIRE(VALID_TASK(task));
+	if (mgr->excl != NULL)
+		isc__task_detach((isc_task_t **) &mgr->excl);
+	isc__task_attach(task0, (isc_task_t **) &mgr->excl);
+}
+
+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;
+
+	REQUIRE(VALID_MANAGER(mgr));
+	REQUIRE(taskp != NULL && *taskp == NULL);
+
+	if (mgr->excl == NULL)
+		return (ISC_R_NOTFOUND);
+
+	isc__task_attach((isc_task_t *) mgr->excl, taskp);
+	return (ISC_R_SUCCESS);
+}
+
 ISC_TASKFUNC_SCOPE isc_result_t
 isc__task_beginexclusive(isc_task_t *task0) {
 #ifdef USE_WORKER_THREADS
 	isc__task_t *task = (isc__task_t *)task0;
 	isc__taskmgr_t *manager = task->manager;
+
 	REQUIRE(task->state == task_state_running);
+	/* XXX: Require task == manager->excl? */
+
 	LOCK(&manager->lock);
 	if (manager->exclusive_requested) {
 		UNLOCK(&manager->lock);
diff --git a/contrib/bind9/lib/isc/task_api.c b/contrib/bind9/lib/isc/task_api.c
index 551d0d37..06a8d24 100644
--- a/contrib/bind9/lib/isc/task_api.c
+++ b/contrib/bind9/lib/isc/task_api.c
@@ -187,6 +187,17 @@ isc_task_purge(isc_task_t *task, void *sender, isc_eventtype_t type, void *tag)
 	return (task->methods->purgeevents(task, sender, type, tag));
 }
 
+void
+isc_taskmgr_setexcltask(isc_taskmgr_t *mgr, isc_task_t *task) {
+	REQUIRE(ISCAPI_TASK_VALID(task));
+	return (mgr->methods->setexcltask(mgr, task));
+}
+
+isc_result_t
+isc_taskmgr_excltask(isc_taskmgr_t *mgr, isc_task_t **taskp) {
+	return (mgr->methods->excltask(mgr, taskp));
+}
+
 isc_result_t
 isc_task_beginexclusive(isc_task_t *task) {
 	REQUIRE(ISCAPI_TASK_VALID(task));
diff --git a/contrib/bind9/lib/isc/unix/Makefile.in b/contrib/bind9/lib/isc/unix/Makefile.in
index 9884ca9..c1411cb 100644
--- a/contrib/bind9/lib/isc/unix/Makefile.in
+++ b/contrib/bind9/lib/isc/unix/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2009, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/unix/file.c b/contrib/bind9/lib/isc/unix/file.c
index 0538761..99c02ec 100644
--- a/contrib/bind9/lib/isc/unix/file.c
+++ b/contrib/bind9/lib/isc/unix/file.c
@@ -98,6 +98,20 @@ file_stats(const char *file, struct stat *stats) {
 }
 
 isc_result_t
+isc_file_mode(const char *file, mode_t *modep) {
+	isc_result_t result;
+	struct stat stats;
+
+	REQUIRE(modep != NULL);
+
+	result = file_stats(file, &stats);
+	if (result == ISC_R_SUCCESS)
+		*modep = (stats.st_mode & 07777);
+
+	return (result);
+}
+
+isc_result_t
 isc_file_getmodtime(const char *file, isc_time_t *time) {
 	isc_result_t result;
 	struct stat stats;
@@ -313,6 +327,23 @@ isc_file_openuniquemode(char *templet, int mode, FILE **fp) {
 }
 
 isc_result_t
+isc_file_bopenunique(char *templet, FILE **fp) {
+	int mode = S_IWUSR|S_IRUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
+	return (isc_file_openuniquemode(templet, mode, fp));
+}
+
+isc_result_t
+isc_file_bopenuniqueprivate(char *templet, FILE **fp) {
+	int mode = S_IWUSR|S_IRUSR;
+	return (isc_file_openuniquemode(templet, mode, fp));
+}
+
+isc_result_t
+isc_file_bopenuniquemode(char *templet, int mode, FILE **fp) {
+	return (isc_file_openuniquemode(templet, mode, fp));
+}
+
+isc_result_t
 isc_file_remove(const char *filename) {
 	int r;
 
diff --git a/contrib/bind9/lib/isc/unix/include/Makefile.in b/contrib/bind9/lib/isc/unix/include/Makefile.in
index 0303ab1..46c243e 100644
--- a/contrib/bind9/lib/isc/unix/include/Makefile.in
+++ b/contrib/bind9/lib/isc/unix/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/unix/include/isc/Makefile.in b/contrib/bind9/lib/isc/unix/include/isc/Makefile.in
index 2f4d216..d3b5084 100644
--- a/contrib/bind9/lib/isc/unix/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/unix/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2004, 2007, 2012  Internet Systems Consortium, Inc. ("ISC")
 # Copyright (C) 1998-2001  Internet Software Consortium.
 #
 # Permission to use, copy, modify, and/or distribute this software for any
diff --git a/contrib/bind9/lib/isc/x86_32/Makefile.in b/contrib/bind9/lib/isc/x86_32/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/x86_32/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_32/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/x86_32/include/Makefile.in b/contrib/bind9/lib/isc/x86_32/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/x86_32/include/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_32/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/x86_32/include/isc/Makefile.in b/contrib/bind9/lib/isc/x86_32/include/isc/Makefile.in
index 5f116ca..4927e21 100644
--- a/contrib/bind9/lib/isc/x86_32/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_32/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/x86_64/Makefile.in b/contrib/bind9/lib/isc/x86_64/Makefile.in
index 324db07..9c24cdf 100644
--- a/contrib/bind9/lib/isc/x86_64/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_64/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/x86_64/include/Makefile.in b/contrib/bind9/lib/isc/x86_64/include/Makefile.in
index f1d8bdd..e399559 100644
--- a/contrib/bind9/lib/isc/x86_64/include/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_64/include/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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
diff --git a/contrib/bind9/lib/isc/x86_64/include/isc/Makefile.in b/contrib/bind9/lib/isc/x86_64/include/isc/Makefile.in
index f33ae99..9a988bb 100644
--- a/contrib/bind9/lib/isc/x86_64/include/isc/Makefile.in
+++ b/contrib/bind9/lib/isc/x86_64/include/isc/Makefile.in
@@ -1,4 +1,4 @@
-# Copyright (C) 2007  Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2007, 2012  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