uint8_t WiFiUDP::beginMulticast(IPAddress interfaceAddr, IPAddress multicast, uint16_t port)
{
if (_ctx) {
_ctx->unref();
_ctx = 0;
}
if (igmp_joingroup(interfaceAddr, multicast)!= ERR_OK) {
return 0;
}
_ctx = new UdpContext;
_ctx->ref();
ip_addr_t addr = IPADDR4_INIT(INADDR_ANY);
if (!_ctx->listen(&addr, port)) {
return 0;
}
return 1;
}
static void add_dns_addr_to_dns_list_index(const u8_t addr_type, const u8_t index)
{
#if LWIP_IPV6
if (addr_type == IPADDR_TYPE_V6) {
/* 2001:4860:4860::8888 google */
ip_addr_t ipv6_dns_addr = IPADDR6_INIT(
PP_HTONL(0x20014860UL),
PP_HTONL(0x48600000UL),
PP_HTONL(0x00000000UL),
PP_HTONL(0x00008888UL));
dns_setserver(index, &ipv6_dns_addr);
}
#endif
#if LWIP_IPV4
if (addr_type == IPADDR_TYPE_V4) {
/* 8.8.8.8 google */
ip_addr_t ipv4_dns_addr = IPADDR4_INIT(0x08080808);
dns_setserver(index, &ipv4_dns_addr);
}
#endif
}
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <*****@*****.**>
*
*/
#include "lwip/opt.h"
#if LWIP_IPV4
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
/* used by IP4_ADDR_ANY and IP_ADDR_BROADCAST in ip_addr.h */
const ip_addr_t ip_addr_any = IPADDR4_INIT(IPADDR_ANY);
const ip_addr_t ip_addr_broadcast = IPADDR4_INIT(IPADDR_BROADCAST);
/**
* Determine if an address is a broadcast address on a network interface
*
* @param addr address to be checked
* @param netif the network interface against which the address is checked
* @return returns non-zero if the address is a broadcast address
*/
u8_t
ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif)
{
ip4_addr_t ipaddr;
ip4_addr_set_u32(&ipaddr, addr);
