#include "def"
int
main(int argc, char **argv)
{
	int                                     sockfd, n;
	int                       len;
	char                            buff[1024];
	struct sockaddr_in6      servaddr, cliaddr;

	if (argc != 3) {
		perror("usage: a.out <ip6> <port>");
		exit(-1);
	}

	if ( (sockfd = socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP)) < 0){
		perror("socket error");
		exit(-1);
	}

	bzero(&servaddr, sizeof(servaddr));
	servaddr.sin6_family = AF_INET6 ;

	if ( inet_pton(AF_INET6, argv[1], &servaddr.sin6_addr) <= 0) {
		perror("inet_pton error for");
		exit(-1);
	}
	servaddr.sin6_port   = htons(atoi(argv[2]));      /* daytime server */

	if (connect(sockfd, (SA *) &servaddr, sizeof(servaddr)) < 0) {
		perror("connect error");
		exit(-1);
	}
	write(sockfd,"HI",2);

	len = sizeof(cliaddr);
	getsockname(sockfd, (SA *) &cliaddr, &len);
	printf("My end: %s, port %d\n",
	    inet_ntop(AF_INET6, &cliaddr.sin6_addr, buff, sizeof(buff)),
	    ntohs(cliaddr.sin6_port));

	len = sizeof(cliaddr);
	getpeername(sockfd, (SA *) &servaddr, &len);
	printf("My peer: %s, port %d\n",
	    inet_ntop(AF_INET6, &servaddr.sin6_addr, buff, sizeof(buff)),
	    ntohs(servaddr.sin6_port));



	while ( (n = read(sockfd, buff, 1024)) > 0) {
		buff[n] = 0;        /* null terminate */
                printf("Got: %s\n", buff);
	}
	if (n < 0){
		perror("read error");
		exit(-1);
	}

	exit(0);
}