[Tutor] python sockets

Jon Engle jon.engle at gmail.com
Tue Jun 10 01:33:09 CEST 2014


I am trying to open ports 1025-65535 with the following code (Mostly found
online with small modifications). I am unable to "bind" anything other than
the one port which is selected as input. What am I missing and how do I
bind all the ports simultaneously?

#!/usr/bin/python           # This is server.py file
from socket import *      #import the socket library
import thread  #import the thread library

startingPort=input("\nPlease enter starting port: ")
startingPort=int(startingPort)

def setup():
##let's set up some constants
HOST = ''    #we are the host
PORT = startingPort    #arbitrary port not currently in use
ADDR = (HOST,PORT)    #we need a tuple for the address
BUFSIZE = 4096    #reasonably sized buffer for data

## now we create a new socket object (serv)
## see the python docs for more information on the socket types/flags
serv = socket( AF_INET,SOCK_STREAM)

##bind our socket to the address
serv.bind((ADDR))    #the double parens are to create a tuple with one
element
serv.listen(5)    #5 is the maximum number of queued connections we'll allow

serv = socket( AF_INET,SOCK_STREAM)

##bind our socket to the address
serv.bind((ADDR))    #the double parens are to create a tuple with one
element
serv.listen(5)    #5 is the maximum number of queued connections we'll allow
print 'listening...'
PORT=PORT+1
conn,addr = serv.accept() #accept the connection
print '...connected!'
conn.send('TEST')
conn.close()

while startingPort<65535:
thread.start_new_thread(setup())
startingPort=startingPort+1
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