Resurect net/balance, a generic TCP proxy with round robin features

PR:		193368
Submitted by:	Chris Hutchinson <portmaster@bsdforge.com>

net/Makefile

@@ -40,6 +40,7 @@
     SUBDIR += avahi-sharp
     SUBDIR += axa
     SUBDIR += babeld
+    SUBDIR += balance
     SUBDIR += beacon
     SUBDIR += beanstalkd
     SUBDIR += belle-sip

net/balance/Makefile

@@ -0,0 +1,25 @@
+# Created by: Joseph Scott <joseph@randomnetworks.com>
+# $FreeBSD$
+
+PORTNAME=	balance
+PORTVERSION=	3.56
+CATEGORIES=	net
+MASTER_SITES=	http://www.inlab.de/
+
+MAINTAINER=	portmaster@BSDforge.com
+COMMENT=	Simple but powerful generic TCP proxy with round robin features
+
+LICENSE=	GPLv2
+
+ALL_TARGET=	balance
+USE_RC_SUBR=	balance
+
+pre-build:
+	@${REINPLACE_CMD} -e 's|^CFLAGS|CFLAGS?|' \
+	-e 's|^CC|CC?|' ${WRKSRC}/Makefile
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/balance ${STAGEDIR}${PREFIX}/bin
+	${INSTALL_MAN} ${WRKSRC}/balance.1 ${STAGEDIR}${MANPREFIX}/man/man1
+
+.include <bsd.port.mk>

net/balance/distinfo

@@ -0,0 +1,2 @@
+SHA256 (balance-3.56.tar.gz) = 939a04eb5c89bd1a6b309a30507e36758dd9f1e90c76ed457c2c67b651dde89c
+SIZE (balance-3.56.tar.gz) = 35477

net/balance/files/balance.in

@@ -0,0 +1,96 @@
+#!/bin/sh
+#
+# $FreeBSD: head/net/balance/files/balance.in 340872 2014-01-24 00:14:07Z mat $
+#
+
+# PROVIDE: balance
+# REQUIRE: LOGIN
+# KEYWORD: shutdown
+
+#
+# Add the following lines to /etc/rc.conf to enable balance:
+#
+#balance_enable="YES"
+#balance_hosts="host1"
+#balance_host1_flags="-a"
+#balance_host1_address="host1.external.example"
+#balance_host1_ports="http 8180"
+#balance_host1_targets="host1.internal.example"
+#
+# See balance(8) for flags
+#
+
+. /etc/rc.subr
+
+name=balance
+rcvar=balance_enable
+command=%%PREFIX%%/bin/balance
+
+start_cmd=start_cmd
+stop_cmd=stop_cmd
+status_cmd=status_cmd
+
+start_cmd()
+{
+	if [ -x "${command}" ]; then
+		for host in ${balance_hosts}; do
+			eval ports=\"\${balance_${host}_ports}\"
+			eval flags=\"\${balance_${host}_flags}\"
+			eval address=\"\${balance_${host}_address}\"
+			eval targets=\"\${balance_${host}_targets}\"
+			if [ "" != "${address}" ]; then
+				flags="${flags} -b ${address}"
+			fi
+			for port in ${ports}; do
+				"${command}" ${flags} ${port} ${targets}
+			done
+		done
+	fi
+}
+
+stop_cmd()
+{
+	if [ -x "${command}" ]; then
+		for host in ${balance_hosts}; do
+			eval ports=\"\${balance_${host}_ports}\"
+			eval address=\"\${balance_${host}_address}\"
+			flags=""
+			if [ "" != "${address}" ]; then
+				flags="-b ${address}"
+			else
+				address='*'
+			fi
+			for port in ${ports}; do
+				echo "balance at ${address}:${port}"
+				"${command}" ${flags} -c kill ${port}
+			done
+		done
+	fi
+}
+
+status_cmd()
+{
+	if [ -x "${command}" ]; then
+		for host in ${balance_hosts}; do
+			eval ports=\"\${balance_${host}_ports}\"
+			eval address=\"\${balance_${host}_address}\"
+			flags=""
+			if [ "" != "${address}" ]; then
+				flags="-b ${address}"
+			else
+				address='*'
+			fi
+			for port in ${ports}; do
+				echo "balance at ${address}:${port}"
+				"${command}" ${flags} -c show ${port}
+			done
+		done
+	fi
+}
+
+# set defaults
+
+balance_enable=${balance_enable:-"NO"}
+
+load_rc_config $name
+run_rc_command "$1"

net/balance/pkg-descr

@@ -0,0 +1,9 @@
+Balance is a simple but powerful generic tcp proxy with round robin load
+balancing and failover mechanisms. Its behaviour can be controlled at runtime
+using a simple command line syntax.
+
+The latest release now supports the definition of channel groups, connection
+counting, and handling. Boosting the power, and versatility of balance, one
+big step further.
+
+WWW: http://www.inlab.de/balance.html

net/balance/pkg-plist

@@ -0,0 +1,2 @@
+bin/balance
+man/man1/balance.1.gz