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/* json-c wrapper
* Copyright (C) 2015 Cumulus Networks, Inc.
*
* This file is part of GNU Zebra.
*
* GNU Zebra 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, or (at your option) any
* later version.
*
* GNU Zebra 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; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _QUAGGA_JSON_H
#define _QUAGGA_JSON_H
#ifdef __cplusplus
extern "C" {
#endif
#include "command.h"
#include "printfrr.h"
#include <json-c/json.h>
/*
* FRR style JSON iteration.
* Usage: JSON_FOREACH(...) { ... }
*/
#define JSON_FOREACH(jo, joi, join) \
/* struct json_object *jo; */ \
/* struct json_object_iterator joi; */ \
/* struct json_object_iterator join; */ \
for ((joi) = json_object_iter_begin((jo)), \
(join) = json_object_iter_end((jo)); \
json_object_iter_equal(&(joi), &(join)) == 0; \
json_object_iter_next(&(joi)))
#define JSON_OBJECT_NEW_ARRAY(json_func, fields, n) \
({ \
struct json_object *_json_array = json_object_new_array(); \
for (int _i = 0; _i < (n); _i++) \
json_object_array_add(_json_array, \
(json_func)((fields)[_i])); \
(_json_array); \
})
extern bool use_json(const int argc, struct cmd_token *argv[]);
extern void json_object_string_add(struct json_object *obj, const char *key,
const char *s);
extern void json_object_int_add(struct json_object *obj, const char *key,
int64_t i);
void json_object_boolean_add(struct json_object *obj, const char *key,
bool val);
extern void json_object_double_add(struct json_object *obj, const char *key,
double i);
extern void json_object_boolean_false_add(struct json_object *obj,
const char *key);
extern void json_object_boolean_true_add(struct json_object *obj,
const char *key);
extern struct json_object *json_object_lock(struct json_object *obj);
extern void json_object_free(struct json_object *obj);
extern void json_array_string_add(json_object *json, const char *str);
/* printfrr => json helpers */
PRINTFRR(3, 0)
extern void json_object_string_addv(struct json_object *obj, const char *key,
const char *fmt, va_list args);
PRINTFRR(3, 4)
static inline void json_object_string_addf(struct json_object *obj,
const char *key, const char *fmt,
...)
{
va_list args;
va_start(args, fmt);
json_object_string_addv(obj, key, fmt, args);
va_end(args);
}
PRINTFRR(2, 0)
extern void json_array_string_addv(json_object *json, const char *fmt,
va_list args);
PRINTFRR(2, 3)
static inline void json_array_string_addf(struct json_object *obj,
const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
json_array_string_addv(obj, fmt, args);
va_end(args);
}
PRINTFRR(1, 0)
extern struct json_object *json_object_new_stringv(const char *fmt,
va_list args);
PRINTFRR(1, 2)
static inline struct json_object *json_object_new_stringf(const char *fmt, ...)
{
struct json_object *ret;
va_list args;
va_start(args, fmt);
ret = json_object_new_stringv(fmt, args);
va_end(args);
return ret;
}
/* NOTE: argument order differs! (due to varargs)
* json_object_object_add(parent, key, child)
* json_object_object_addv(parent, child, key, va)
* json_object_object_addf(parent, child, key, ...)
* (would be weird to have the child inbetween the format string and args)
*/
PRINTFRR(3, 0)
extern void json_object_object_addv(struct json_object *parent,
struct json_object *child,
const char *keyfmt, va_list args);
PRINTFRR(3, 4)
static inline void json_object_object_addf(struct json_object *parent,
struct json_object *child,
const char *keyfmt, ...)
{
va_list args;
va_start(args, keyfmt);
json_object_object_addv(parent, child, keyfmt, args);
va_end(args);
}
#define JSON_STR "JavaScript Object Notation\n"
/* NOTE: json-c lib has following commit 316da85 which
* handles escape of forward slash.
* This allows prefix "20.0.14.0\/24":{
* to "20.0.14.0/24":{ some platforms do not have
* latest copy of json-c where defining below macro.
*/
#ifndef JSON_C_TO_STRING_NOSLASHESCAPE
/**
* Don't escape forward slashes.
*/
#define JSON_C_TO_STRING_NOSLASHESCAPE (1<<4)
#endif
#ifdef __cplusplus
}
#endif
#endif /* _QUAGGA_JSON_H */
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