fix: add nargs for password arg to prompt if only -p is passed in

Fixes #30 which was added for #27

smbclientng/__main__.py

@@ -37,7 +37,7 @@ def parseArgs():
     secret = parser.add_argument_group()
     cred = secret.add_mutually_exclusive_group()
     cred.add_argument("--no-pass", action="store_true", help="Don't ask for password (useful for -k).")
-    cred.add_argument("-p", "--password", dest="auth_password", metavar="PASSWORD", action="store", help="Password to authenticate with.")
+    cred.add_argument("-p", "--password", dest="auth_password", metavar="PASSWORD", action="store", nargs="?", help="Password to authenticate with.")
     cred.add_argument("-H", "--hashes", dest="auth_hashes", action="store", metavar="[LMHASH:]NTHASH", help="NT/LM hashes, format is LMhash:NThash.")
     cred.add_argument("--aes-key", dest="auth_key", action="store", metavar="hex key", help="AES key to use for Kerberos Authentication (128 or 256 bits).")
     secret.add_argument("-k", "--kerberos", dest="use_kerberos", action="store_true", help="Use Kerberos authentication. Grabs credentials from .ccache file (KRB5CCNAME) based on target parameters. If valid credentials cannot be found, it will use the ones specified in the command line.")
@@ -117,4 +117,4 @@ def main():
         print("[debug] Exiting the console.")
 
 if __name__ == "__main__":
-    main()
+    main()