python port scanner
import socket, argparse, sys
def Main(ip, port):
print('-' * 120)
print(f'Scanning target: {args.ip}')
print(f'Checking port: {args.port}')
print('-' * 120)
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(0.5)
result = s.connect_ex((args.ip, args.port))
if result == 0:
print(f'Open Port: {args.port}')
else:
print(f'Port: {args.port} closed')
s.close()
except KeyboardInterrupt:
print('nExiting program.')
sys.exit()
except socket.gaierror:
print('Hostname could not be resolved.')
sys.exit()
except socket.timeout:
print('Connection timed out.')
sys.exit()
except socket.error:
print("Couldn't connect to server.")
sys.exit()
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Scan a port on given hostname or ip')
ap = argparse.ArgumentParser(prog='port_scanner.py', usage='%(prog)s [options] -ip "ip or hostname" -port "port to scan"')
ap.add_argument('-ip', required=True, type=str, help='ip or hostname')
ap.add_argument('-port', required=True, type=int, help='Port to scan')
args = ap.parse_args()
ip = args.ip
port = args.port
Main(ip, port)