|
- /*
- Copyright (c) 2001, 2021, Oracle and/or its affiliates.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License, version 2.0,
- as published by the Free Software Foundation.
-
- This program is also distributed with certain software (including
- but not limited to OpenSSL) that is licensed under separate terms,
- as designated in a particular file or component or in included license
- documentation. The authors of MySQL hereby grant you an additional
- permission to link the program and your derivative works with the
- separately licensed software that they have included with MySQL.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License, version 2.0, for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- #include "client_priv.h"
- #include "password_option.h"
-
- using namespace Mysql::Tools::Base::Options;
- using Mysql::Nullable;
- using std::string;
-
- Password_option::Password_option(Nullable<string>* value, string name, string description)
- : Abstract_string_option<Password_option>(value, GET_PASSWORD, name, description)
- {
- this->value_optional()
- ->add_callback(
- new Instance_callback<void, char*, Password_option>(
- this, &Password_option::password_callback));
- }
-
- void Password_option::password_callback(char* argument)
- {
- if (argument == ::disabled_my_option)
- {
- // This prevents ::disabled_my_option being overriden later in this function.
- argument= (char*) "";
- }
-
- if (argument != NULL)
- {
- /*
- Destroy argument value, this modifies part of argv passed to main
- routine. This makes command line on linux changed, so no user can see
- password shortly after program starts. This works for example for
- /proc/<pid>/cmdline file and ps tool.
- */
- for (char* pos= argument; *pos != 0; pos++)
- {
- *pos= '*';
- }
-
- /*
- This cuts argument length to hide password length on linux commandline
- showing tools.
- */
- if (*argument)
- argument[1]= 0;
- }
- else
- {
- char *password= ::get_tty_password(NULL);
- *this->m_destination_value = Nullable<string>(password);
- my_free(password);
-
- }
- }
|