import java.io.*;

import java.util.*;

import java.net.*;

class Port_Scanner

{

static long start=0;

static long stop=0;

static float timetaken=0;

static int port=0;

static int limit=0;

static ArrayList <Integer>open_ports;

//FUNCTION TO DISPLAY BANNER-----------------------

public static void BANNER()

{

System.out.print( " >===> >=======> \n"+

" >=> >=> >=> >> \n"+

">=> >=> >=> >=> >==> >==>> ==> >=> >> >==> >==> \n"+

">=> >=> >> >=> >> >=> >=> >=> >=====> >=> >=> >> >=> \n"+

">=> >=> >> >=> >>===>>=> >=> >=> >=> >=> >=> >>===>>=> \n"+

" >=> >=> >=> >=> >> >=> >=> >=> >=> >=> >> \n"+

" >===> >=> >====> >==> >=> >=> >=> >==> >====> \n"+

" >=> \n");

System.out.print( " ::::::'##:::'###:::'##::::'##:::'###:::: \n"+

" :::::: ##::'## ##:::##:::: ##::'## ##::: \n"+

" :::::: ##:'##:. ##::##:::: ##:'##:. ##:: \n"+

" :::::: ##'##:::. ##:##:::: ##'##:::. ##: \n"+

" :##::: ##:#########. ##:: ##::#########: \n"+

" :##::: ##:##.... ##:. ## ##:::##.... ##: \n"+

" . ######::##:::: ##::. ###::::##:::: ##: \n"+

" :......::..:::::..::::...::::..:::::..:: \n");

System.out.print( "###### ##### \n"+

"# # #### ##### ##### # # #### ## # # # # ###### ##### \n"+

"# # # # # # # # # # # # ## # ## # # # # \n"+

"###### # # # # # ##### # # # # # # # # # ##### # # \n"+

"# # # ##### # # # ###### # # # # # # # ##### \n"+

"# # # # # # # # # # # # # ## # ## # # # \n"+

"# #### # # # ##### #### # # # # # # ###### # # \n\n");

System.out.println(" {*} OpenFire Java Port Scanner {*} \n"+

" {*} Developed by:- Supratik Banerjee (drakula941) {*} \n"+

" {*} Homepage:- http://www.openfire-security.net/ {*} \n"+

" {*} Version:- 1.1 {*} \n\n");

}

//MAIN FUNCTION-----------------------

public static void main(String args[])throws IOException

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

InetAddress rslt=null;

String IP="";

String opt="";

do

{

BANNER();

open_ports=new <Integer>ArrayList();

try

{

//IP input is taken from the user

System.out.println("Enter the IP address");

IP=br.readLine();

if(IP!=null)

{

//IP passed to the function 'scan()'

rslt=InetAddress.getByName(IP);

SCAN(rslt);

}

}

catch(UnknownHostException ee)

{

System.out.println("Error in IP");

}

//waitsfor user input to reuse the scanner or exit

System.out.println("'Y' to reuse || 'N' to exit");

opt=br.readLine();

}

while(opt.equalsIgnoreCase("Y"));

}

//FUNCTION TO SCAN PORTS-----------------------

public static void SCAN(final InetAddress ret)throws IOException

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

//port input from user

System.out.println("Enter the Initial limit of port ");

port=Integer.parseInt(br.readLine());

System.out.println("Enter the end limit of port");

limit=Integer.parseInt(br.readLine());

//ticks the start time to calculate total time taken for scanning

start=System.currentTimeMillis();

while(port<=limit)

{

try

{

//scans ports

Socket s1=new Socket(ret,port);

s1.setSoTimeout(1000);

System.out.println("Port is listening at port :"+port);

open_ports.add(port);

}

catch(IOException ex)

{

System.out.println("Port is not listening at port :"+port);

}

port++;

}

//ticks the end time to calculate total time taken for scanning

stop=System.currentTimeMillis();

//function port info is called

PORTINFO();

}

//FUNCTION TO SHOW ALL IFORMATION REGARDING PORTS-----------------------

public static void PORTINFO()

{

System.out.println("______________________________\n");

timetaken=((stop-start)/1000);

System.out.println("Ports Scanned :"+(port-1));

System.out.println("Time Taken to scan :"+timetaken+" sec");

System.out.println("No. of Ports Close :"+((port-1)-open_ports.size()));

System.out.println("No. of Ports Open :"+open_ports.size());

System.out.println("______________________________\n");

for(int i=0;i<open_ports.size();i++)

{

System.out.println("[+] Port OPEN :"+open_ports.get(i));

}

System.out.println("______________________________\n");

}

}