/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <mailutils/sys/pop3.h>
#include <stdlib.h>
#include <string.h>

int
pop3_disconnect (pop3_t pop3)
{

  /* Sanity checks.  */
  if (pop3 == NULL)
    return MU_ERROR_INVALID_PARAMETER;

  /* We can keep some of the fields, if they decide to pop3_open() again but
     clear the states.  */
  pop3->state = POP3_NO_STATE;
  pop3->acknowledge = 0;
  memset (pop3->io.buf, '\0', pop3->io.len);
  memset (pop3->ack.buf, '\0', pop3->ack.len);

  /* Free the timestamp, it will be different on each connection.  */
  if (pop3->timestamp)
    {
      free (pop3->timestamp);
      pop3->timestamp = NULL;
    }
  if (pop3->carrier)
    return stream_close (pop3->carrier);
  return 0;
}