707 	code = -1;  in sec_prot()
718 	code = -1;  in sec_prot()
724 	    code = -1;  in sec_prot()
729 	    code = -1;  in sec_prot()
734     code = 0;  in sec_prot()
739     code = -1;  in sec_prot()
752 	code = -1;  in sec_prot_command()
766 	    code = -1;  in sec_prot_command()
770 	    code = -1;  in sec_prot_command()
774     code = 0;  in sec_prot_command()
779     code = -1;  in sec_prot_command()
829 	    if(code == 504){  in sec_login()
831 	    }else if(code == 534){  in sec_login()