+ [ -n "$src_port" -a -z "$proto" ] && { \
+ echo "sport may only be used it proto is defined"; return; }
+
+ src_port_first=${src_port%-*}
+ src_port_last=${src_port#*-}
+ [ "$src_port_first" -ne "$src_port_last" ] && { \
+ src_port="$src_port_first:$src_port_last"; }
+
+ src_dport_first=${src_dport%-*}
+ src_dport_last=${src_dport#*-}
+ [ "$src_dport_first" -ne "$src_dport_last" ] && { \
+ src_dport="$src_dport_first:$src_dport_last"; }
+