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

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

   GNU Mailutils 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 Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with GNU Mailutils; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

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

#include <stdlib.h>

#include <mailutils/error.h>
#include <mailutils/sys/mbox.h>

int
mbox_set_carrier (mbox_t mbox, stream_t carrier)
{
  mbox_debug_print (mbox, "set_carrier");
  if (mbox == NULL)
    return MU_ERROR_INVALID_PARAMETER;

  if (mbox->carrier)
    {
      stream_close (mbox->carrier);
      stream_destroy (&mbox->carrier);
    }
  mbox->carrier = carrier;
  return 0;
}

int
mbox_get_carrier (mbox_t mbox, stream_t *pcarrier)
{
  mbox_debug_print (mbox, "get_carrier");
  if (mbox == NULL || pcarrier == NULL)
    return MU_ERROR_INVALID_PARAMETER;

  if (mbox->carrier == NULL)
    {
      int status = stream_file_create (&mbox->carrier);
      if (status != 0)
	return status;
    }
  *pcarrier = mbox->carrier;
  return 0;
}

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