scanner.py

import socket

print("=" * 40)
print("        TCP PORT SCANNER")
print("=" * 40)

target = input("Enter Target IP or Website: ")

start_port = int(input("Enter Start Port: "))
end_port = int(input("Enter End Port: "))

print(f"\nScanning Target: {target}")
print(f"Scanning Ports from {start_port} to {end_port}\n")

try:

    file = open("results.txt", "w")

    for port in range(start_port, end_port + 1):

        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        socket.setdefaulttimeout(1)

        result = s.connect_ex((target, port))

        if result == 0:

            output = f"[OPEN] Port {port}"

            print(output)

            file.write(output + "\n")

        else:

            output = f"[CLOSED] Port {port}"

            print(output)

            file.write(output + "\n")

        s.close()

    file.close()

    print("\nScan Completed Successfully!")
    print("Results saved in results.txt")

except socket.gaierror:
    print("Hostname could not be resolved")

except socket.error:
    print("Server not responding")