Port check

gistfile1.py

#!/usr/bin/python
# vim: set fileencoding=ascii ts=2 expandtab :

import socket
import sys

class PortScanner:
  def isOpened(self, ipaddr, port):
    try:
      sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,0)
      sock.settimeout(5)
      sock.connect((ipaddr, port))
      sock.close()

      return True

    except socket.error, msg:
      return False

class BootChecker:
  def __init__(self):
    self.scanner = PortScanner()

  def isBooted(self, ipaddr):
    if self.scanner.isOpened(ipaddr, 3389):
      return True

  def waitForBoot(self, ipaddr):
    while not self.isBooted(ipaddr):
      sys.stdout.write('.')
      sys.stdout.flush()

    print ''

def main():
  if len(sys.argv) != 2:
    print >>sys.stderr, 'Specify IP address to check booting up'
    return 2

  BootChecker().waitForBoot(sys.argv[1])
  return 0

try:
  sys.exit(main())
except KeyboardInterrupt:
  print >>sys.stderr, 'Interrupted'
  sys.exit(1)