select.c
3.79 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010-2012, 2014-2017 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 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, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <mailutils/errno.h>
#include <mailutils/assoc.h>
#include <mailutils/stream.h>
#include <mailutils/imap.h>
#include <mailutils/imaputil.h>
#include <mailutils/sys/imap.h>
static int
_collect_flags (void *item, void *data)
{
struct imap_list_element *elt = item;
int *args = data;
if (elt->type == imap_eltype_string)
mu_imap_flag_to_attribute (elt->v.string, args);
return 0;
}
int
_mu_imap_collect_flags (struct imap_list_element *arg, int *res)
{
if (arg->type != imap_eltype_list)
return EINVAL;
*res = 0;
mu_list_foreach (arg->v.list, _collect_flags, res);
return 0;
}
static void
_select_response_action (mu_imap_t imap, mu_list_t response, void *data)
{
struct imap_list_element *elt;
elt = _mu_imap_list_at (response, 0);
if (elt && _mu_imap_list_element_is_string (elt, "FLAGS"))
{
struct imap_list_element *arg = _mu_imap_list_at (response, 1);
if (arg &&
_mu_imap_collect_flags (arg, &imap->mbox_stat.defined_flags) == 0)
imap->mbox_stat.flags |= MU_IMAP_STAT_DEFINED_FLAGS;
}
}
int
mu_imap_select (mu_imap_t imap, const char *mbox, int writable,
struct mu_imap_stat *ps)
{
int status;
if (imap == NULL)
return EINVAL;
if (!imap->io)
return MU_ERR_NO_TRANSPORT;
if (imap->session_state != MU_IMAP_SESSION_AUTH &&
imap->session_state != MU_IMAP_SESSION_SELECTED)
return MU_ERR_SEQ;
if (!mbox)
{
if (imap->session_state == MU_IMAP_SESSION_SELECTED)
{
if (ps)
*ps = imap->mbox_stat;
return 0;
}
return MU_ERR_INFO_UNAVAILABLE;
}
if (imap->mbox_name && strcmp (imap->mbox_name, mbox) == 0
&& writable == imap->mbox_writable)
{
if (ps)
*ps = imap->mbox_stat;
return 0;
}
switch (imap->client_state)
{
case MU_IMAP_CLIENT_READY:
status = _mu_imap_tag_next (imap);
MU_IMAP_CHECK_EAGAIN (imap, status);
status = mu_imapio_send_command (imap->io, imap->tag_str, NULL,
writable ? "SELECT" : "EXAMINE",
mbox, NULL);
MU_IMAP_CHECK_ERROR (imap, status);
MU_IMAP_FCLR (imap, MU_IMAP_RESP);
imap->client_state = MU_IMAP_CLIENT_SELECT_RX;
case MU_IMAP_CLIENT_SELECT_RX:
memset (&imap->mbox_stat, 0, sizeof (imap->mbox_stat));
status = _mu_imap_response (imap, _select_response_action, NULL);
MU_IMAP_CHECK_EAGAIN (imap, status);
switch (imap->response)
{
case MU_IMAP_OK:
imap->session_state = MU_IMAP_SESSION_SELECTED;
free (imap->mbox_name);
imap->mbox_name = strdup (mbox);
if (!imap->mbox_name)
{
imap->client_state = MU_IMAP_CLIENT_ERROR;
return errno;
}
imap->mbox_writable = writable;
if (ps)
*ps = imap->mbox_stat;
break;
case MU_IMAP_NO:
status = EACCES;
break;
case MU_IMAP_BAD:
status = MU_ERR_BADREPLY;
break;
}
imap->client_state = MU_IMAP_CLIENT_READY;
break;
default:
status = EINPROGRESS;
}
return status;
}