Method decode

sql/sql_crypt.cc:63–72

void SQL_CRYPT::decode(char *str,uint length)
{
  for (uint i=0; i < length; i++)
  {
    shift^=(uint) (my_rnd(&rand)*255.0);
    uint idx= (uint) ((uchar) str[0] ^ shift);
    *str = decode_buff[idx];
    shift^= (uint) (uchar) *str++;
  }
}