#!/usr/local/bin/python2.7 """ Copyright (c) 2015 Ad Schellevis All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------------- package : configd function: commandline tool to send commands to configd (response to stdout) """ import socket import os.path import traceback import syslog import sys import time __author__ = 'Ad Schellevis' configd_socket_name = '/var/run/configd.socket' configd_socket_wait = 20 def exec_config_cmd(exec_command): """ execute command using configd socket :param exec_command: command string :return: string """ # Create and open unix domain socket try: sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) sock.connect(configd_socket_name) except socket.error: syslog.syslog(syslog.LOG_ERR,'unable to connect to configd socket (@%s)'%configd_socket_name) print('unable to connect to configd socket (@%s)'%configd_socket_name) return None try: sock.send(exec_command) data = [] while True: line = sock.recv(65536) if line: data.append(line) # end of stream marker found, exit if line.find("%c%c%c"%(chr(0), chr(0), chr(0))) > -1 or ( len(line) < 3 and len(data) > 1 and (''.join(data[-2:])).find("%c%c%c"%(chr(0), chr(0), chr(0))) > -1 ): break return ''.join(data)[:-3] except: print ('error in configd communication %s, see syslog for details') syslog.syslog(syslog.LOG_ERR,'error in configd communication \n%s'%traceback.format_exc()) finally: sock.close() # set a timeout to the socket socket.setdefaulttimeout(120) # validate parameters if len(sys.argv) <= 1: print ('usage : %s [-m] <command>'%sys.argv[0]) sys.exit(0) # check if configd socket exists # (wait for a maximum of "configd_socket_wait" seconds for configd to start) i=0 while not os.path.exists(configd_socket_name): if i >= configd_socket_wait: break time.sleep(1) i += 1 if not os.path.exists(configd_socket_name): print ('configd socket missing (@%s)'%configd_socket_name) sys.exit(-1) if sys.argv[1] == '-m': # execute multiple commands at once ( -m "action1 param .." "action2 param .." ) for exec_command in sys.argv[2:]: result=exec_config_cmd(exec_command=exec_command) if result is None: sys.exit(-1) print('%s' % (result.strip())) else: # execute single command sequence exec_command=' '.join(sys.argv[1:]) result=exec_config_cmd(exec_command=exec_command) if result is None: sys.exit(-1) print('%s' % (result.strip()))