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#!/usr/bin/python
# -*- mode: python-mode; py-indent-tabs-mode: nil -*-
"""
/*
* Copyright (C) 2016 sysmocom s.f.m.c. GmbH
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
"""
from optparse import OptionParser
from ipa import Ctrl
import socket
verbose = False
def connect(host, port):
if verbose:
print "Connecting to host %s:%i" % (host, port)
sck = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sck.setblocking(1)
sck.connect((host, port))
return sck
def do_set_get(sck, var, value = None):
(r, c) = Ctrl().cmd(var, value)
sck.send(c)
answer = Ctrl().rem_header(sck.recv(4096))
return (answer,) + Ctrl().verify(answer, r, var, value)
def set_var(sck, var, val):
(a, _, _) = do_set_get(sck, var, val)
return a
def get_var(sck, var):
(_, _, v) = do_set_get(sck, var)
return v
def _leftovers(sck, fl):
"""
Read outstanding data if any according to flags
"""
try:
data = sck.recv(1024, fl)
except socket.error as (s_errno, strerror):
return False
if len(data) != 0:
tail = data
while True:
(head, tail) = Ctrl().split_combined(tail)
print "Got message:", Ctrl().rem_header(head)
if len(tail) == 0:
break
return True
return False
if __name__ == '__main__':
parser = OptionParser("Usage: %prog [options] var [value]")
parser.add_option("-d", "--host", dest="host",
help="connect to HOST", metavar="HOST")
parser.add_option("-p", "--port", dest="port", type="int",
help="use PORT", metavar="PORT", default=4249)
parser.add_option("-g", "--get", action="store_true",
dest="cmd_get", help="perform GET operation")
parser.add_option("-s", "--set", action="store_true",
dest="cmd_set", help="perform SET operation")
parser.add_option("-v", "--verbose", action="store_true",
dest="verbose", help="be verbose", default=False)
parser.add_option("-m", "--monitor", action="store_true",
dest="monitor", help="monitor the connection for traps", default=False)
(options, args) = parser.parse_args()
verbose = options.verbose
if options.cmd_set and options.cmd_get:
parser.error("Get and set options are mutually exclusive!")
if not (options.cmd_get or options.cmd_set or options.monitor):
parser.error("One of -m, -g, or -s must be set")
if not (options.host):
parser.error("Destination host and port required!")
sock = connect(options.host, options.port)
if options.cmd_set:
if len(args) < 2:
parser.error("Set requires var and value arguments")
_leftovers(sock, socket.MSG_DONTWAIT)
print "Got message:", set_var(sock, args[0], ' '.join(args[1:]))
if options.cmd_get:
if len(args) != 1:
parser.error("Get requires the var argument")
_leftovers(sock, socket.MSG_DONTWAIT)
(a, _, _) = do_set_get(sock, args[0])
print "Got message:", a
if options.monitor:
while True:
if not _leftovers(sock, 0):
print "Connection is gone."
break
sock.close()
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