70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/*
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Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "client_priv.h"
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#include "password_option.h"
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using namespace Mysql::Tools::Base::Options;
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using Mysql::Nullable;
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using std::string;
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Password_option::Password_option(Nullable<string>* value, string name, string description)
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: Abstract_string_option<Password_option>(value, GET_PASSWORD, name, description)
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{
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this->value_optional()
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->add_callback(
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new Instance_callback<void, char*, Password_option>(
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this, &Password_option::password_callback));
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}
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void Password_option::password_callback(char* argument)
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{
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if (argument == ::disabled_my_option)
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{
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// This prevents ::disabled_my_option being overriden later in this function.
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argument= (char*) "";
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}
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if (argument != NULL)
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{
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/*
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Destroy argument value, this modifies part of argv passed to main
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routine. This makes command line on linux changed, so no user can see
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password shortly after program starts. This works for example for
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/proc/<pid>/cmdline file and ps tool.
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*/
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for (char* pos= argument; *pos != 0; pos++)
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{
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*pos= '*';
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}
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/*
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This cuts argument length to hide password length on linux commandline
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showing tools.
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*/
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if (*argument)
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argument[1]= 0;
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}
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else
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{
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char *password= ::get_tty_password(NULL);
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*this->m_destination_value = Nullable<string>(password);
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my_free(password);
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}
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}
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