Traceroute.py

#!/usr/bin/python

import socket,sys
def main(dest):
      ttl = 1
      max = 30
      dest = socket.gethostbyname(dest)
      icmp = socket.getprotobyname('icmp')
      port = 12345
      while True:
            incoming = socket.socket(socket.AF_INET, socket.SOCK_RAW, icmp)
            outgoing = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            outgoing.setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
            incoming.bind(("", port))
            outgoing.sendto("", (dest, port))
            NULL, address = incoming.recvfrom(1024)
            address = address[0]
            fuckery = socket.gethostbyaddr(address)[0]
            if address is not None:
                  current = '{0} {1}'.format(fuckery,address)
            else:
                  current = '*'
            print '{0}  {1}'.format(ttl,current)
            ttl += 1
            if address == dest or ttl > max:
                  break


if __name__ == '__main__':
      main(sys.argv[1])