diff options
Diffstat (limited to 'lib/dns/rbt.c')
| -rw-r--r-- | lib/dns/rbt.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/dns/rbt.c b/lib/dns/rbt.c index c733e505d152..4e033d66ed14 100644 --- a/lib/dns/rbt.c +++ b/lib/dns/rbt.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004, 2005, 2007-2009, 2011 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004, 2005, 2007-2009, 2011, 2012 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1999-2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id: rbt.c,v 1.146.278.2 2011-03-12 04:59:17 tbox Exp $ */ +/* $Id$ */ /*! \file */ @@ -1929,6 +1929,8 @@ dns_rbt_deletefromlevel(dns_rbtnode_t *delete, dns_rbtnode_t **rootp) { sibling = RIGHT(parent); } + INSIST(sibling != NULL); + if (IS_BLACK(LEFT(sibling)) && IS_BLACK(RIGHT(sibling))) { MAKE_RED(sibling); @@ -1965,6 +1967,8 @@ dns_rbt_deletefromlevel(dns_rbtnode_t *delete, dns_rbtnode_t **rootp) { sibling = LEFT(parent); } + INSIST(sibling != NULL); + if (IS_BLACK(LEFT(sibling)) && IS_BLACK(RIGHT(sibling))) { MAKE_RED(sibling); |