#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <sys/types.h>
#define IFINDEX 5 //Please adjust me first.

struct mld2_query {
	uint8_t   type;
	uint8_t   code;
	uint16_t  csum;
	uint16_t  mrc;
	uint16_t  resv1;
	struct in6_addr mca;
	uint8_t   qrv:3,
		  suppress:1,
		  resv2:4;
	uint8_t   qqic;
	uint16_t  nsrcs;
	struct in6_addr srcs[0];
};

int main(int argc ,char *argv[]) {
	
	int len, sockfd; 
	struct mld2_query query;
	struct sockaddr_in6 addr;

	memset(&addr, 0x00, sizeof(addr));
	addr.sin6_family = AF_INET6;
	addr.sin6_scope_id = IFINDEX;
	inet_pton(PF_INET6, "FF02::1", &addr.sin6_addr);
	memset(&query, 0x00, sizeof(query));
	query.type = 130;
	inet_pton(PF_INET6, "FF02::2000", &query.mca);

	sockfd = socket(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
	sendto(sockfd, &query, sizeof(query), 0, 
			(struct sockaddr *)&addr, sizeof(addr));
}