#include "def"
main(argc, argv )
int argc;
char *argv[];

{
   int   sd, sd2;
   struct   sockaddr_in6 server;
   char buff[1024];
   int rc;
   struct sockaddr_in6 cliaddr;
   time_t                          ticks;
   int len;


   server.sin6_family = AF_INET6;
   server.sin6_addr = in6addr_any;
   server.sin6_port = htons(10111);

   sd = socket (AF_INET6,SOCK_SEQPACKET,IPPROTO_SCTP);
   sd2 = socket (AF_INET6,SOCK_SEQPACKET,IPPROTO_SCTP);

   if (   bind( sd, (SA *) &server, sizeof(server) ) < 0 ){
      printf("error binding\n");
      exit(-1) ;
   }

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

   listen(sd, 1);

   for(;;){

         len = sizeof(cliaddr);
         rc = recvfrom (sd, buff, sizeof(buff), 0, (SA *) &cliaddr, &len);
         printf("got request from %s, port %d\n",
             inet_ntop(AF_INET6, &cliaddr.sin6_addr, buff, sizeof(buff)), 
             ntohs(cliaddr.sin6_port));

         ticks = time(NULL);
         snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks));
         len = sizeof(cliaddr);
         sendto(sd2, buff, strlen(buff), 0, (SA *) &cliaddr, len);
   }
}