The dnsreflector daemon listens for DNS queries on a local UDP port

and answers with records pointing back to localhost. Combined with
packet filter pf(4) this works as a bandwidth efficient spamtrap.

WWW: http://www.wolfermann.org/dnsreflector.html

PR:		ports/135077
Submitted by:	ismail.yenigul at endersys.com.tr

dns/Makefile

@@ -35,6 +35,7 @@
     SUBDIR += dnsmax-perl
     SUBDIR += dnsperf
     SUBDIR += dnsproxy
+    SUBDIR += dnsreflector
     SUBDIR += dnstop
     SUBDIR += dnstracer
     SUBDIR += dnsutl

dns/dnsreflector/Makefile

@@ -0,0 +1,31 @@
+# New ports collection makefile for:   dnsreflector
+# Date created:        May 30 2009
+# Whom:                ismail.yenigul@endersys.com.tr
+#
+# $FreeBSD$
+#
+
+PORTNAME=	dnsreflector
+PORTVERSION=	1.02
+CATEGORIES=	dns
+MASTER_SITES=	http://www.wolfermann.org/
+
+MAINTAINER=	ismail.yenigul@endersys.com.tr
+COMMENT=	Listens for DNS queries on a UDP port and change the answer
+
+USE_RC_SUBR=	dnsreflector
+
+MAN1=		dnsreflector.1
+PORTDOCS=	README
+
+PLIST_FILES=	sbin/dnsreflector
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/dnsreflector ${PREFIX}/sbin
+	${INSTALL_DATA} ${WRKSRC}/dnsreflector.1 ${MANPREFIX}/man/man1/
+.if !defined(NOPORTDOCS)
+	${MKDIR} ${DOCSDIR}
+	${INSTALL_DATA} ${WRKSRC}/README ${DOCSDIR}
+.endif
+
+.include <bsd.port.mk>

dns/dnsreflector/distinfo

@@ -0,0 +1,3 @@
+MD5 (dnsreflector-1.02.tar.gz) = 119c9d1e4949840319aec5def44e1d55
+SHA256 (dnsreflector-1.02.tar.gz) = 5c838485167b3288fffeaceab840c31536290f3734a118713e22eb9811ce142a
+SIZE (dnsreflector-1.02.tar.gz) = 4324

dns/dnsreflector/files/dnsreflector.in

@@ -0,0 +1,32 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# PROVIDE: dnsreflector
+# REQUIRE: NETWORKING SERVERS
+# BEFORE:  DAEMON
+# KEYWORD: shutdown
+
+#
+# Define these dnsreflector_* variables in one of these files:
+#       /etc/rc.conf
+#       /etc/rc.conf.local
+#
+# dnsreflector_enable="YES"		# Run the dnsreflector(1) daemon (YES/NO).
+# dnsreflector_flags=""		# Extra flags for dnsreflector(1) (if enabled).
+#
+# DO NOT CHANGE THESE DEFAULT VALUES HERE
+#
+dnsreflector_enable=${dnsreflector_enable:-"NO"}
+command_args=${dnsreflector_flags:-"-d -a 127.0.0.1 -p 53000"}
+
+. %%RC_SUBR%%
+
+name="dnsreflector"
+rcvar=`set_rcvar`
+
+command="%%PREFIX%%/sbin/dnsreflector"
+
+load_rc_config $name
+run_rc_command "$1"

dns/dnsreflector/files/patch-Makefile

@@ -0,0 +1,36 @@
+--- Makefile.orig	2003-05-01 16:12:56.000000000 +0300
++++ Makefile	2009-05-30 15:06:02.000000000 +0300
+@@ -1,25 +1,12 @@
+-# $Id: Makefile,v 1.7 2003/05/01 13:12:56 armin Exp $
+ 
+-PROG=dnsreflector
+-SRCS=dnsreflector.c
+-MAN=dnsreflector.1
++OBJS = dnsreflector.o
++CFLAGS = -g -Wall -Werror
++CC = gcc
++STRIP = strip
+ 
+-BINDIR=/usr/local/sbin
+-MANDIR=/usr/local/man/cat
++all: $(OBJS)
++	$(CC) -o dnsreflector $(OBJS) $(CFLAGS)
+ 
+-CFLAGS+=-g -Wall -Werror
++clean: 
++	rm -f dnsreflector *.o core.* *~
+ 
+-VERS=1.02
+-LVERS="$(PROG) $(VERS) (`date +%Y-%b-%d`)"
+-dist:
+-	rm -rf /tmp/dnsreflector-$(VERS)/
+-	mkdir /tmp/dnsreflector-$(VERS)/
+-	cp -pR * /tmp/dnsreflector-$(VERS)/
+-	cd /tmp/dnsreflector-$(VERS)/ && make cleandir
+-	cd /tmp/dnsreflector-$(VERS)/ && rm -rf ./CVS/
+-	(echo $(LVERS); cat README) >/tmp/dnsreflector-$(VERS)/README
+-	cd /tmp && tar cf dnsreflector-$(VERS).tar ./dnsreflector-$(VERS)/
+-	cd /tmp && gzip -f9 dnsreflector-$(VERS).tar
+-	cd /tmp && rm -rf ./dnsreflector-$(VERS)/
+-
+-.include <bsd.prog.mk>

dns/dnsreflector/files/patch-dnsreflector.c

@@ -0,0 +1,40 @@
+--- dnsreflector.c.orig	2009-05-30 14:02:43.000000000 +0300
++++ dnsreflector.c	2009-05-30 14:04:31.000000000 +0300
+@@ -87,8 +87,7 @@
+ 
+ #define MAXQUERY (PACKETSZ - sizeof(ADDITIONAL) - sizeof(AUTHORITY) - sizeof(ANSWER_AAAA))
+ 
+-static struct syslog_data sdata = SYSLOG_DATA_INIT;
+-
++static int daemonize = 0;
+ static void
+ logit(int level, const char *fmt, ...)
+ {
+@@ -97,8 +96,8 @@
+ 
+ 	va_start(ap, fmt);
+ 
+-	if (sdata.opened) {
+-		vsyslog_r(level, &sdata, fmt, ap);
++	if (daemonize) {
++		vsyslog(level, fmt, ap);
+ 	} else {
+ 		fprintf(stderr, "%s: ", __progname);
+ 		vfprintf(stderr, fmt, ap);
+@@ -148,7 +147,6 @@
+ 
+ 	/* Options and their defaults */
+ 	char *address = NULL;
+-	int daemonize = 0;
+ 	int port = 53000;
+ 
+ 	/* Process commandline arguments */
+@@ -186,8 +184,6 @@
+ 	/* Use syslog if daemonized */
+ 	if (daemonize) {
+ 		tzset();
+-		openlog_r("dnsreflector", LOG_PID | LOG_NDELAY, LOG_DAEMON,
+-		    &sdata);
+ 	}
+ 
+ 	/* Daemonize if requested */

dns/dnsreflector/pkg-descr

@@ -0,0 +1,5 @@
+The dnsreflector daemon listens for DNS queries on a local UDP port
+and answers with records pointing back to localhost. Combined with
+packet filter pf(4) this works as a bandwidth efficient spamtrap.
+
+WWW: http://www.wolfermann.org/dnsreflector.html