dns/nsd: update 4.1.17 -> 4.1.18

This release has features for saving memory and faster notification.
With --enable-packed, 33% memory savings could be had, or something
along that size.  Notification of secondary servers happens in parallel,
and has faster timeouts.  More sockets are used for zone transfers.
This speeds up communication with a larger set of servers.  Additionally
a bug is fixed for dual-loaded parent-and-child zone configured at the
same time, when one of the zones has not loaded properly.

FEATURES:
- xfr-inspect, it is not installed, it prints xfr files from /tmp
  made with 'make xfr-inspect' in the source dir.
- retry timeout between sending notifies dropped from 15 to 3 sec.
- NSD sends 16 notifies simultaneously.
- configure --enable-packed reduces memory usage, at expense of
  unaligned reads.  Saves about 17%.
- Save memory by selectively allocate precompiled nsec3 hashes,
  saves about 16% memory.
- make ip-transparent option work on OpenBSD.
- Save about 2% memory by changing usage count size in name tree.
- Fix #2871: Increase number of sockets for xfrd transfers.

BUG FIXES:
- Fix gcc 7.1.1 warnings.
- Fix writev compile warning on FreeBSD.
- Fix #1446: A corrupted zone file "propagates" to good ones.
- nsd-control zonestatus prints wait time between attempts, for zones
  that are in that waiting time.
- Fix collision printout of nsec3 to print name, hash and reverse.
- Fix #1567: Change crit to err log level for gettimeofday failure.
  Add defines for compile without syslog.
- Fix crash for DS query when parent and child zones both configured
  in nsd.conf and parent zone has not loaded properly.

PR:		224025
Submitted by:	jaap@NLnetLabs.nl (maintainer)

dns/nsd/Makefile

@@ -2,7 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	nsd
-PORTVERSION=	4.1.17
+PORTVERSION=	4.1.18
 CATEGORIES=	dns ipv6
 MASTER_SITES=	http://www.nlnetlabs.nl/downloads/nsd/	\
 		ftp://ftp.rhnet.is/pub/nsd/
@@ -51,7 +51,7 @@ PORTDOCS=	CREDITS ChangeLog LICENSE NSD-DATABASE NSD-DIFFFILE \
 
 OPTIONS_DEFINE=		ROOT_SERVER LARGEFILE IPV6 BIND8_STATS CHECKING \
 		MINRESPSIZE NSEC3 MMAP DOCS RRL ZONE_STATS MUNIN_PLUGIN \
-		RADIXTREE
+		RADIXTREE PACKED
 OPTIONS_DEFAULT=	LARGEFILE NSEC3 MINRESPSIZE RRL RADIXTREE
 OPTIONS_SUB=	yes
 
@@ -68,6 +68,7 @@ RRL_DESC=		Response Rate Limiting
 ZONE_STATS_DESC=	Separate statistics for each zone
 MUNIN_PLUGIN_DESC=	Install Munin plugin (requires BIND8_STATS)
 RADIXTREE_DESC=		Enabled: more (15%) memory use but less CPU cycles
+PACKED_DESC=		Enable packed structures for reduced memory use
 
 LIB_DEPENDS+=	libevent.so:devel/libevent
 
@@ -82,6 +83,7 @@ RRL_CONFIGURE_ENABLE=		ratelimit
 ZONE_STATS_CONFIGURE_ENABLE=	zone-stats
 IPV6_CONFIGURE_ENABLE=		ipv6
 RADIXTREE_CONFIGURE_ENABLE=	radix-tree
+PACKED_CONFIGURE_ENABLE=	packed
 
 post-build-MUNIN_PLUGIN-on:
 	${REINPLACE_CMD} \

dns/nsd/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1501201542
-SHA256 (nsd-4.1.17.tar.gz) = 107fa506d18ed6fd0a922d1b96774afd9270ec38ec6b17cd7c46fb9433a03a6c
-SIZE (nsd-4.1.17.tar.gz) = 1089526
+TIMESTAMP = 1512051203
+SHA256 (nsd-4.1.18.tar.gz) = 8c1db23c5ad44c6410874161e78f785475d3f08ed0daae57fe56c44e33a89c0f
+SIZE (nsd-4.1.18.tar.gz) = 1095673