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/*
* fwd - OpenWrt firewall daemon - commmon utility header
*
* Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
*
* The fwd program is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* The fwd 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 the fwd program. If not, see http://www.gnu.org/licenses/.
*/
#ifndef __FWD_UTILS_H__
#define __FWD_UTILS_H__
#include <syslog.h>
#include "fwd.h"
void fwd_log_init(void);
void __fwd_log(int, const char *, ...);
#define fwd_log_info(...) __fwd_log(LOG_INFO, __VA_ARGS__)
#define fwd_log_err(...) __fwd_log(LOG_ERR, __VA_ARGS__)
int fwd_empty_cidr(struct fwd_cidr *);
int fwd_equal_cidr(struct fwd_cidr *, struct fwd_cidr *);
void fwd_update_cidr(struct fwd_cidr *, struct fwd_cidr *);
/* fwd_zmalloc(size_t)
* Allocates a zeroed buffer of the given size. */
void * fwd_zmalloc(size_t);
/* fwd_alloc_ptr(type)
* Allocates a buffer with the size of the given datatype
* and returns a pointer to it. */
#define fwd_alloc_ptr(t) (t *) fwd_zmalloc(sizeof(t))
/* fwd_free_ptr(void *)
* Frees the given pointer and sets it to NULL.
* Safe for NULL values. */
#define fwd_free_ptr(x) do { if(x != NULL) free(x); x = NULL; } while(0)
#endif
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