From 2ee229e5c325701a83f381028c31080e24348249 Mon Sep 17 00:00:00 2001
From: "Brian S. Dean" <bsd@FreeBSD.org>
Date: Sun, 16 Apr 2000 02:28:42 +0000
Subject: [PATCH] Allow the firewall rules to be established by a shell script
 instead of forcing them to be an 'ipfw' rules file.  This allows one to
 determine interface addresses dynamically, etc.  The rule is if the file
 referenced by ${firewall_type} is executable, it is sourced, but if it is
 just readable, it is used as input to 'ipfw' like before.

---
 etc/rc.firewall | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/etc/rc.firewall b/etc/rc.firewall
index 37428808e7a2..922fe14f1321 100644
--- a/etc/rc.firewall
+++ b/etc/rc.firewall
@@ -228,7 +228,9 @@ case ${firewall_type} in
 [Uu][Nn][Kk][Nn][Oo][Ww][Nn])
 	;;
 *)
-	if [ -r "${firewall_type}" ]; then
+	if [ -x "${firewall_type}" ]; then
+		. ${firewall_type}
+	elif [ -r "${firewall_type}" ]; then
 		${fwcmd} ${firewall_flags} ${firewall_type}
 	fi
 	;;