pyscan

#!/usr/bin/env python3

import argparse
import socket
import threading
import time
from concurrent.futures import ThreadPoolExecutor, as_completed

parser = argparse.ArgumentParser(description="Multithreaded TCP port scanner")
parser.add_argument("host", help="Target host to scan")
parser.add_argument("start_port", type=int, help="Start port")
parser.add_argument("end_port", type=int, help="End port")
parser.add_argument("threads", type=int, help="Number of threads")
args = parser.parse_args()

target = args.host
start_port = args.start_port
end_port = args.end_port
threads = args.threads

total_ports = end_port - start_port + 1
open_ports = []
progress_lock = threading.Lock()
open_ports_lock = threading.Lock()
count = 0
stop_event = threading.Event()

def scan_port(port):
    global count
    if stop_event.is_set():
        return
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.settimeout(1)
    result = s.connect_ex((target, port))
    if result == 0:
        with open_ports_lock:
            open_ports.append(port)
        print(f"\nPort {port} open")
    s.close()
    with progress_lock:
        count += 1

def monitor():
    last_percent = -1
    while not stop_event.is_set():
        time.sleep(0.5)
        with progress_lock:
            percent = min(100, (count * 100) // total_ports)
        if percent != last_percent:
            print(f"[{percent}%] Scanning...", end="\r")
            last_percent = percent
        if count >= total_ports:
            break

print(f"[*] Scanning {target} ports {start_port}-{end_port} with {threads} threads...")

monitor_thread = threading.Thread(target=monitor)
monitor_thread.start()

try:
    with ThreadPoolExecutor(max_workers=threads) as executor:
        futures = [executor.submit(scan_port, port) for port in range(start_port, end_port + 1)]
        for future in as_completed(futures):
            if stop_event.is_set():
                break
except KeyboardInterrupt:
    stop_event.set()
    print("\n[!] Keyboard interrupt detected, stopping scan...")

monitor_thread.join()
print("\n[+] Scan complete.")

if open_ports:
    print("\n[+] Open ports summary:")
    for port in sorted(set(open_ports)):
        print(f"Port {port} open")
else:
    print("\nNo open ports found.")