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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010-2025 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 3, 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 GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <mailutils/errno.h>
#include <mailutils/list.h>
#include <mailutils/iterator.h>
#include <mailutils/smtp.h>
#include <mailutils/sys/smtp.h>
int
mu_smtp_capa_iterator (mu_smtp_t smtp, mu_iterator_t *itr)
{
if (!smtp || !itr)
return EINVAL;
if (MU_SMTP_FISSET (smtp, _MU_SMTP_ERR))
return MU_ERR_FAILURE;
if (smtp->state <= MU_SMTP_EHLO)
{
int rc = mu_smtp_ehlo (smtp);
if (rc)
return rc;
}
if (!MU_SMTP_FISSET (smtp, _MU_SMTP_ESMTP) || smtp->capa == NULL)
{
/*
* Create an empty list so that iterator can be returned.
* FIXME: Perhaps a null iterator type should be provided for
* cases like this.
*/
if (!smtp->capa)
{
int rc = mu_list_create (&smtp->capa);
if (rc)
return rc;
}
else
mu_list_clear (smtp->capa);
}
return mu_list_get_iterator (smtp->capa, itr);
}
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