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//usr/local/ssl/include/mysql/mysql/plugin_validate_password.h

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 */

#ifndef MYSQL_PLUGIN_VALIDATE_PASSWORD_INCLUDED
#define MYSQL_PLUGIN_VALIDATE_PASSWORD_INCLUDED

/* API for validate_password plugin. (MYSQL_VALIDATE_PASSWORD_PLUGIN) */

#include <mysql/plugin.h>
#define MYSQL_VALIDATE_PASSWORD_INTERFACE_VERSION 0x0100

/*  
  The descriptor structure for the plugin, that is referred from
  st_mysql_plugin.
*/

typedef void* mysql_string_handle;

struct st_mysql_validate_password
{
  int interface_version;
  /*  
    This function retuns TRUE for passwords which satisfy the password
    policy (as choosen by plugin variable) and FALSE for all other
    password
  */
  int (*validate_password)(mysql_string_handle password);
  /*  
    This function returns the password strength (0-100) depending
    upon the policies
  */
  int (*get_password_strength)(mysql_string_handle password);
};
#endif