#!/usr/bin/env python3 # # Copyright (C) 2020 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as # published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import re import sys area = sys.argv[1] res = re.match(r'^(\d+)\.(\d+)\.(\d+)\.(\d+)$', area) if not res: print("\'{0}\' is not a valid dotted decimal value".format(area)) sys.exit(1) else: components = res.groups() for n in range(0, 4): if (int(components[n]) > 255): print("Invalid component of a dotted decimal value: {0} exceeds 255".format(components[n])) sys.exit(1) sys.exit(0)