#include	"unp.h"

int
main(int argc, char **argv)
{
	int					sockfd, n;
	socklen_t			len;
	char				recvline[MAXLINE + 1];
	struct sockaddr_storage	servaddr;


   struct addrinfo hints, *res;
   char                    rhost[NI_MAXHOST];
   int rc;


   bzero(&hints, sizeof(struct addrinfo));
   hints.ai_family = AF_UNSPEC;
   hints.ai_socktype = SOCK_DGRAM;
   hints.ai_flags |= AI_CANONNAME;


      if ( (n = getaddrinfo(argv[1], "1313", &hints, &res)) != 0)
         err_quit("udp_server error for %s: %s", argv[1], gai_strerror(n));


         if (res->ai_canonname)
            printf("ai_canonname = %s\n", res->ai_canonname);

         printf("\taddress:%s\n", Sock_ntop(res->ai_addr, res->ai_addrlen
));

         rc = getnameinfo(res->ai_addr, res->ai_addrlen, rhost, NI_MAXHOST, NULL, NULL, NI_NAMEREQD);
         if (rc == 0) {
            printf("\tgetnameinfo: host = %s\n", rhost );
         } else
            printf("getnameinfo returned %d (%s)\n", rc, gai_strerror(rc));


	if ( (sockfd = socket(res->ai_family, SOCK_DGRAM, 0)) < 0)
		err_sys("socket error");

	if (connect(sockfd, (SA *)res->ai_addr, res->ai_addrlen) < 0)
		err_sys("connect error");

        len = sizeof(servaddr);
        Getsockname(sockfd, (SA *) &servaddr, &len);
        printf("local address %s\n", Sock_ntop((SA *) &servaddr, len));
        len = sizeof(servaddr);
        Getpeername(sockfd, (SA *) &servaddr, &len);
        printf("remote address %s\n", Sock_ntop( (SA *) &servaddr, len));


	write(sockfd,"HI",3);

	n = read(sockfd, recvline, MAXLINE) ;
	recvline[n] = 0;	/* null terminate */
	fputs(recvline, stdout);
        exit(0);
}