"Remember me" with 4.5?

thanks but i got it working. at user.module in the very end of user_authenticate(...):

setcookie("userinfo", session_id(), time() + 3600 * 24 * 15, "/");

and after "unset($user)" (in user_logout(...)) i added

setcookie("userinfo");

which clears the cookie once the user logs out. now the only thing i needed was to change the sess_read() function at session.inc to this one:

function sess_read($key) {
  global $user;

  $result = db_query_range("SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = '%s' AND u.status < 3", $key, 0, 1);

  if (!db_num_rows($result)) {
    // -------- i changed from here... ---------
    if (isset($_COOKIE['userinfo'])) {
      $result = db_query_range("SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = '%s' AND u.status < 3", $_COOKIE['userinfo'], 0, 1);
      $user = db_fetch_object($result);
      $result = db_query("SELECT u.* FROM {users} u WHERE u.uid = " . ($user? $user->uid : 0));
    }
    else $result = db_query("SELECT u.* FROM {users} u WHERE u.uid = 0");
    
    db_query("INSERT INTO {sessions} (uid, sid, hostname, timestamp) values(%s, '%s', '%s', %d)", ($user? $user->uid : 0), $key, $_SERVER["REMOTE_ADDR"], time());
   // ---------- ...to here -------------
  }

  $user = db_fetch_object($result);
  $user = drupal_unpack($user);
  $user->roles = array();

  $result = db_query("SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d", $user->uid);

  while ($role = db_fetch_object($result)) {
    $user->roles[$role->rid] = $role->name;
  }

  return !empty($user->session) ? $user->session : '';
}

this checks for the user cookie and fetches user data from the db. now the last step was to fix my htaccess file, since i'm using apache2 (this last step is described in the htaccess itself).