mdnsd/util.h

/*
 * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation
 *
 * 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.
 */

#ifndef _UTIL_H__
#define _UTIL_H__

#include <stdint.h>
#include <time.h>

#define DBG(level, fmt, ...) do { \
	umdns_udebug_printf("[%d] [%s:%d] " fmt, level, __func__, __LINE__, ## __VA_ARGS__); \
	if (debug >= level) \
		fprintf(stderr, "mdnsd: %s (%d): " fmt, __func__, __LINE__, ## __VA_ARGS__); \
	} while (0)

#define MDNS_BUF_LEN	(8 * 1024)
#define HOSTNAME_LEN	256

extern int debug;
extern uint8_t mdns_buf[MDNS_BUF_LEN];

/**
 * The first label of a host's fully qualified domain name
 *
 * E.g. just "example" for the domain name example.local.
 */
extern char umdns_host_label[HOSTNAME_LEN];

extern char mdns_hostname_local[HOSTNAME_LEN + 6];

extern void get_hostname(void);
extern uint32_t rand_time_delta(uint32_t t);
extern time_t monotonic_time(void);

void umdns_udebug_set_enabled(bool val);
void umdns_udebug_printf(const char *format, ...);

#endif