*pop_data->err_msg = '\0';
int pop_connect (POP_DATA *pop_data){  char buf[LONG_STRING];  pop_data->status = POP_NONE;  if (mutt_socket_open (pop_data->conn) < 0 ||      mutt_socket_readln (buf, sizeof (buf), pop_data->conn) < 0)  {    mutt_error (_("Error connecting to server: %s"), pop_data->conn->account.host);    return -1;  }  pop_data->status = POP_CONNECTED;  if (mutt_strncmp (buf, "+OK", 3))  {    pop_error (pop_data, buf);    mutt_error ("%s", pop_data->err_msg);    return -2;  }  pop_apop_timestamp (pop_data, buf);  return 0;}