Option management added

scripts/lfirewall

@@ -20,6 +20,63 @@
 
 set -euo pipefail
 
+help_message_lfirewall(){
+cat <<-EOF
+  Light Firewall configuration script.
+
+  $(basename ${0}) [OPTIONS...] COMMAND
+
+	COMMANDS
+
+		start : starts the firewall
+		clear : stops the firewall (removes all IPTABLES rules and let all connections work)
+		stop  : stops all network connections (USE with CAUTION)
+		test	: tests the existing rules for 30 seconds
+
+	OPTIONS
+		-v --verbose	: verbose mode
+		-h --help			: display this help message
+
+	AUTHOR
+		Original author: Nicolargo
+		Modified by: Laurent Hubert
+EOF
+}
+
+options=$(getopt -l "help,verbose" -o "hv" -- "$@")
+
+if [[ $? != 0 ]] ; then
+	help_message_lfirewall
+	exit 1
+fi
+
+eval set -- "$options"
+
+verbose=0
+
+while :
+do
+	if [[ ${verbose} = "1" ]] ; then
+		echo "$@"
+	fi
+
+	case "$1" in
+		-h|--help)
+			help_message_lfirewall
+			exit 0
+			;;
+		-v|--verbose)
+			verbose=1
+			set -xv
+			;;
+		--)
+			shift
+			break
+			;;
+	esac
+	shift
+done
+
 PATH=/bin:/sbin:/usr/bin:/usr/sbin
 
 #Defautl network interface