/*
 * sender.c -- multicasts "hello, world!" to a multicast group once a second
 *
 * Antony Courtney,     25/11/94
 */

#include <stdio.h>
#include <stdlib.h>

#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <netdb.h>
#include <errno.h>
#include <arpa/inet.h>
#include <sys/utsname.h>



#define HELLO_PORT 50010
#define HELLO_GROUP "225.0.0.37"

int main(int argc, char *argv[])
{
	struct sockaddr_in addr;
	int fd, nbytes;
	// struct ip_mreq mreq;
	char *message="Hello, World!";

	/* create what looks like an ordinary UDP socket */
	if ((fd=socket(AF_INET,SOCK_DGRAM,0)) < 0) {
		perror("socket");
		exit(1);
	}

	/* set up destination address */
	memset(&addr,0,sizeof(addr));
	addr.sin_family=AF_INET;
	addr.sin_addr.s_addr=inet_addr(HELLO_GROUP);
	addr.sin_port=htons(HELLO_PORT);

	/* now just sendto() our destination! */
	while (1) {
		if ((nbytes=sendto(fd, message, strlen(message)+1, 0,
						(struct sockaddr *) &addr, sizeof(addr))) < 0) {
			perror("sendto");
			exit(1);
		}
		printf("Sent %d bytes\n", nbytes);
		sleep(1);
	}

	return(EXIT_SUCCESS);
}