NoMap.py

import sys
import socket
import optparse
import threading
import queue

class PortScaner(threading.Thread):
    def __init__(self, portqueue, ip, timeout=3)
        threading.Thread.__init__(self)
        self._portqueue = portqueue
        self._ip = ip
        self._timeout = timeout

    def run(self):
        while True:
            if self._portqueue.empty():
                break
            port = self._portqueue.get(timeout=3)
            try:
                s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                s.settimeout(self._timeout)
                result_code = s.connect_ex((self._ip, port))
                if result_code == 0:
                    sys.stdout.write("[%d] OPEN\n" % port)
            except Exception as e:
                print(e)
            finally:
                s.close()

    def StartScan(targetip, port, threadNum):
        portList = []
        portNum = port
        if '-' in port:
            for i in range(int(port.split('-')[0]),int(port.split('-')[1])+1):
                portList.append(i)
        else:
            portList.append(int(port))

        ip = targetip
        threrads = []
        threadNumber = threadNum
        portQueue = queue.Queue()

        for port in portList:
            portQueue.put(port)
        for t in range(threadNumber):
            threads.append(PortScaner(portQueue, ip, timeout=3))
        for thread in threads:
            thread.start()
        for thread in threads:
            thread.join()

    def banner():
        print(
            #     #         #     #
            ##    #   ####  ##   ##    ##    #####
            # #   #  #    # # # # #   #  #   #    #
            #  #  #  #    # #  #  #  #    #  #    #
            #   # #  #    # #     #  ######  #####
            #    ##  #    # #     #  #    #  #
            #     #   ####  #     #  #    #  #
        )
        
if __name__ == '__main__':
    banner()
    parser = optparse.OptionParser('Example : python %prog -i 127.0.0.1 -p 80 \n    python %prog -i 127.0.0.1 -p 1-100\n')
    parser.add_option('-i','--ip',dest='targetIP',default='127.0.0.1',type='string',help='target ip')
    parser.add_option('-p','--port', dest='port', default='80', type='string', help='scan port')
    parser.add_option('-t','--thread', dest='threadNum', default=100, type='int', help='scan thread number')
    (options,args) = parser.parse_args()
    StartScan(options.targetIP, options.port, options.threadNum)