import socket, subprocess, sys

from datetime import datetime

subprocess.call('clear',shell=True)

rmip = raw_input("\t Enter the remote host IP to scan:")

r1 = int(raw_input("\t Enter the start port number\t"))

r2 = int (raw_input("\t Enter the last port number\t"))

print "*"*40

print "\n Port Scanner is working on ",rmip

print "*"*40

t1= datetime.now()

try:

for port in range(r1,r2):

sock= socket.socket(socket.AF_INET,socket.SOCK_STREAM)

socket.setdefaulttimeout(1)

result = sock.connect_ex((rmip,port))

print result

if result==0:

print "Port Open:-->\t", port

# print desc[port]

sock.close()

except KeyboardInterrupt:

print "You stop this "

sys.exit()

except socket.gaierror:

print "Hostname could not be resolved"

sys.exit()

except socket.error:

print "could not connect to server"

sys.exit()

t2= datetime.now()

total =t2-t1

print "scanning complete in " , total