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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright 2018 Red Hat, Inc.
*/
#ifndef __NM_JANSSON_H__
#define __NM_JANSSON_H__
/* you need to include at least "config.h" first, possibly "nm-default.h". */
#if WITH_JANSSON
#include <jansson.h>
/* Added in Jansson v2.7 */
#ifndef json_boolean_value
#define json_boolean_value json_is_true
#endif
/* Added in Jansson v2.8 */
#ifndef json_object_foreach_safe
#define json_object_foreach_safe(object, n, key, value) \
for (key = json_object_iter_key(json_object_iter(object)), \
n = json_object_iter_next(object, json_object_key_to_iter(key)); \
key && (value = json_object_iter_value(json_object_key_to_iter(key))); \
key = json_object_iter_key(n), \
n = json_object_iter_next(object, json_object_key_to_iter(key)))
#endif
NM_AUTO_DEFINE_FCN0 (json_t *, _nm_auto_decref_json, json_decref)
#define nm_auto_decref_json nm_auto(_nm_auto_decref_json)
/*****************************************************************************/
static inline int
nm_jansson_json_as_bool (const json_t *elem,
bool *out_val)
{
if (!elem)
return 0;
if (!json_is_boolean (elem))
return -EINVAL;
NM_SET_OUT (out_val, json_boolean_value (elem));
return 1;
}
static inline int
nm_jansson_json_as_int32 (const json_t *elem,
gint32 *out_val)
{
json_int_t v;
if (!elem)
return 0;
if (!json_is_integer (elem))
return -EINVAL;
v = json_integer_value (elem);
if ( v < (gint64) G_MININT32
|| v > (gint64) G_MAXINT32)
return -ERANGE;
NM_SET_OUT (out_val, v);
return 1;
}
static inline int
nm_jansson_json_as_int (const json_t *elem,
int *out_val)
{
json_int_t v;
if (!elem)
return 0;
if (!json_is_integer (elem))
return -EINVAL;
v = json_integer_value (elem);
if ( v < (gint64) G_MININT
|| v > (gint64) G_MAXINT)
return -ERANGE;
NM_SET_OUT (out_val, v);
return 1;
}
static inline int
nm_jansson_json_as_string (const json_t *elem,
const char **out_val)
{
if (!elem)
return 0;
if (!json_is_string (elem))
return -EINVAL;
NM_SET_OUT (out_val, json_string_value (elem));
return 1;
}
/*****************************************************************************/
#ifdef NM_VALUE_TYPE_DEFINE_FUNCTIONS
#include "nm-value-type.h"
static inline gboolean
nm_value_type_from_json (NMValueType value_type,
const json_t *elem,
gpointer out_val)
{
switch (value_type) {
case NM_VALUE_TYPE_BOOL: return (nm_jansson_json_as_bool (elem, out_val) > 0);
case NM_VALUE_TYPE_INT32: return (nm_jansson_json_as_int32 (elem, out_val) > 0);
case NM_VALUE_TYPE_INT: return (nm_jansson_json_as_int (elem, out_val) > 0);
/* warning: this overwrites/leaks the previous value. You better have *out_val
* point to uninitialized memory or NULL. */
case NM_VALUE_TYPE_STRING: return (nm_jansson_json_as_string (elem, out_val) > 0);
case NM_VALUE_TYPE_UNSPEC:
break;
}
nm_assert_not_reached ();
return FALSE;
}
#endif
/*****************************************************************************/
#endif /* WITH_JANSON */
#endif /* __NM_JANSSON_H__ */
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