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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999-2001, 2004-2005, 2007-2008, 2010-2012, 2014-2018
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 <mailutils/sys/property.h>
#include <mailutils/errno.h>
#include <mailutils/assoc.h>
#include <mailutils/stream.h>
#include <mailutils/iterator.h>
#include <mailutils/list.h>
#include <stdlib.h>
static void
_assoc_prop_done (struct _mu_property *prop)
{
mu_assoc_t assoc = prop->_prop_data;
mu_stream_t str = prop->_prop_init_data;
mu_assoc_destroy (&assoc);
mu_stream_destroy (&str);
}
static int
_assoc_prop_getval (struct _mu_property *prop,
const char *key, const char **pval)
{
mu_assoc_t assoc = prop->_prop_data;
char *item;
item = mu_assoc_get (assoc, key);
if (item == NULL)
return MU_ERR_NOENT;
if (pval)
*pval = item;
return 0;
}
static int
_assoc_prop_setval (struct _mu_property *prop, const char *key,
const char *val, int overwrite)
{
mu_assoc_t assoc = prop->_prop_data;
char **item;
int rc;
rc = mu_assoc_install_ref (assoc, key, &item);
if (rc == 0)
{
*item = strdup (val);
if (!*item)
{
mu_assoc_remove (assoc, key);
return ENOMEM;
}
}
else if (rc == MU_ERR_EXISTS && overwrite)
{
char *newval = strdup (val);
if (!newval)
return ENOMEM;
free (*item);
*item = newval;
}
else
return rc;
return 0;
}
static int
_assoc_prop_unset (struct _mu_property *prop, const char *key)
{
mu_assoc_t assoc = prop->_prop_data;
return mu_assoc_remove (assoc, key);
}
static int
_assoc_prop_clear (struct _mu_property *prop)
{
mu_assoc_t assoc = prop->_prop_data;
mu_assoc_clear (assoc);
return 0;
}
static int
_assoc_prop_getitr (struct _mu_property *prop, mu_iterator_t *pitr)
{
int rc;
mu_iterator_t itr;
rc = mu_assoc_get_iterator ((mu_assoc_t)prop->_prop_data, &itr);
if (rc)
return rc;
*pitr = itr;
return 0;
}
static int
_assoc_prop_fill (struct _mu_property *prop)
{
int rc;
mu_stream_t str = prop->_prop_init_data;
int state = 0;
char *buf[2] = { NULL, NULL };
size_t size[2] = { 0, 0 }, n;
if (!str)
return 0;
mu_stream_seek (str, 0, MU_SEEK_SET, NULL);
while ((rc = mu_stream_getdelim (str, &buf[state], &size[state],
0, &n)) == 0 &&
n > 0)
{
if (state == 1)
_assoc_prop_setval (prop, buf[0], buf[1], 1);
state = !state;
}
free (buf[0]);
free (buf[1]);
return rc;
}
static int
_assoc_prop_save (struct _mu_property *prop)
{
mu_stream_t str = prop->_prop_init_data;
mu_iterator_t itr;
int rc;
mu_off_t off;
if (!str)
return 0;
rc = mu_property_get_iterator (prop, &itr);
if (rc)
return rc;
mu_stream_seek (str, 0, MU_SEEK_SET, NULL);
for (mu_iterator_first (itr); !mu_iterator_is_done (itr);
mu_iterator_next (itr))
{
const char *name, *val;
mu_iterator_current_kv (itr, (const void **)&name, (void**)&val);
rc = mu_stream_write (str, name, strlen (name) + 1, NULL);
if (rc)
break;
rc = mu_stream_write (str, val, strlen (val) + 1, NULL);
if (rc)
break;
}
mu_iterator_destroy (&itr);
rc = mu_stream_seek (str, 0, MU_SEEK_CUR, &off);
if (rc == 0)
rc = mu_stream_truncate (str, off);
return rc;
}
int
mu_assoc_property_init (struct _mu_property *prop)
{
mu_assoc_t assoc;
int rc;
rc = mu_assoc_create (&assoc, 0);
if (rc)
return rc;
mu_assoc_set_destroy_item (assoc, mu_list_free_item);
prop->_prop_data = assoc;
prop->_prop_done = _assoc_prop_done;
if (prop->_prop_init_data)
{
prop->_prop_fill = _assoc_prop_fill;
prop->_prop_save = _assoc_prop_save;
}
else
{
prop->_prop_fill = NULL;
prop->_prop_save = NULL;
}
prop->_prop_getval = _assoc_prop_getval;
prop->_prop_setval = _assoc_prop_setval;
prop->_prop_unset = _assoc_prop_unset;
prop->_prop_getitr = _assoc_prop_getitr;
prop->_prop_clear = _assoc_prop_clear;
return 0;
}
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