Index: gen_dh_params
==================================================================
--- gen_dh_params
+++ gen_dh_params
@@ -1,8 +1,19 @@
 #! /usr/bin/env sh
 
 bits='2048'
+option_fallback='0'
+for arg in "$@"; do
+	case "${arg}" in
+		fallback)
+			option_fallback='1'
+			;;
+		bits=*)
+			bits="`echo "${arg}" | cut -f 2 -d =`"
+			;;
+	esac
+done
 
 openssl_dhparam() {
 	if [ -x "`which openssl 2>/dev/null`" ]; then
 		o_output="`openssl dhparam -C "$@" 2>/dev/null`" || return 1
 		o_output="`echo "${o_output}" | sed 's/get_dh[0-9]\+/get_dhParams/'`" || return 1
@@ -101,11 +112,11 @@
 
 	return 1
 }
 
 # Enable support for giving the same DH params each time
-if [ "$1" = 'fallback' ]; then
+if [ "${option_fallback}" = '1' ]; then
 	gen_dh_params_fallback && exit 0
 
 	echo "Unable to generate fallback parameters for DH of ${bits} bits" >&2
 
 	exit 1