~drizzle-trunk/drizzle/development

/* Copyright (C) 2010 Rackspace

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; version 2 of the License.

   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 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 "config.h"

#include "mysql_password.h"

#include "drizzled/algorithm/sha1.h"

#include "drizzled/util/convert.h"

using namespace std;

using namespace drizzled;

const char* MySQLPasswordName = "mysql_password";

MySQLPassword::MySQLPassword(void):

  Item_str_func()

{ }

const char *MySQLPassword::func_name() const

{

  return MySQLPasswordName;

}

void MySQLPassword::fix_length_and_dec()

{

  max_length= args[0]->max_length;

}

bool MySQLPassword::check_argument_count(int n)

{

  return (n == 1);

}

String *MySQLPassword::val_str(String *str)

{

  String argument;

  String *password= args[0]->val_str(&argument);

  SHA1_CTX ctx;

  uint8_t hash_tmp1[SHA1_DIGEST_LENGTH];

  uint8_t hash_tmp2[SHA1_DIGEST_LENGTH];

  SHA1Init(&ctx);

  SHA1Update(&ctx, reinterpret_cast<uint8_t *>(password->ptr()),

             password->length());

  SHA1Final(hash_tmp1, &ctx);

  SHA1Init(&ctx);

  SHA1Update(&ctx, hash_tmp1, SHA1_DIGEST_LENGTH);

  SHA1Final(hash_tmp2, &ctx);

  str->realloc(SHA1_DIGEST_LENGTH * 2);

  drizzled_string_to_hex(str->ptr(), reinterpret_cast<const char*>(hash_tmp2),

                         SHA1_DIGEST_LENGTH);

  str->length(SHA1_DIGEST_LENGTH * 2);

  return str;

}