(usagi-users 02503) about source address

["Su Po-chou" <supc@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi all,
         I am writing a socket programming about source addresses selection
         But no matter how I am trying, it just can print out  ::1
         How to get my source addresses like this  3ffe:3600:1a:1::1234 ?
         My platform is Red Hat 8.0

Thanks for suggestions.
PC

below is  part of my source

        memset(&hints, 0, sizeof(hints));
        hints.ai_family = PF_INET6;
        hints.ai_socktype = SOCK_STREAM;

  if (getaddrinfo(hostname,servname,&hints, &res) == 0) {
                  while (res != NULL) {

 if (getnameinfo(res->ai_addr, res->ai_addrlen, myaddrbuf, NI_MAXHOST,NULL,
0,NI_NUMERICHOST) != 0) {
         printf("error with getnameinfo\n");
       } else {
         printf("myaddrbuf: %s\n", myaddrbuf);
       } //end switch

       res = res->ai_next;

    }  //while