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/*
* 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.
*/
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <signal.h>
#include <libubox/uloop.h>
#include <libubox/utils.h>
#include "dns.h"
#include "util.h"
uint8_t mdns_buf[MDNS_BUF_LEN];
int debug = 0;
char umdns_host_label[HOSTNAME_LEN];
char mdns_hostname_local[HOSTNAME_LEN + 6];
uint32_t
rand_time_delta(uint32_t t)
{
uint32_t val;
int fd = open("/dev/urandom", O_RDONLY);
if (!fd)
return t;
if (read(fd, &val, sizeof(val)) == sizeof(val)) {
int range = t / 30;
srand(val);
val = t + (rand() % range) - (range / 2);
} else {
val = t;
}
close(fd);
return val;
}
void get_hostname(void)
{
struct utsname utsname;
umdns_host_label[0] = 0;
mdns_hostname_local[0] = 0;
if (uname(&utsname) < 0)
return;
snprintf(umdns_host_label, sizeof(umdns_host_label), "%s", utsname.nodename);
snprintf(mdns_hostname_local, sizeof(mdns_hostname_local), "%s.local", utsname.nodename);
}
time_t monotonic_time(void)
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return ts.tv_sec;
}
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