Example #1
0
int main()
{
   int                         lfd, cfd;
   struct sctp_event_subscribe events;
   struct sctp_initmsg         init;
   struct sockaddr_in          sin[1];

   if((lfd = ext_socket(checkIPv6() ? AF_INET6 : AF_INET,
                        SOCK_STREAM, IPPROTO_SCTP)) == -1) {
      perror("socket");
      exit(1);
   }

   init.sinit_num_ostreams   = MAX_OUTGOING;
   init.sinit_max_instreams  = MAX_INCOMING;
   init.sinit_max_attempts   = 3;
   init.sinit_max_init_timeo = 30;
   if(ext_setsockopt(lfd, IPPROTO_SCTP, SCTP_INITMSG, (void*)&init, sizeof(init)) < 0) {
      perror("setsockopt");
      exit(1);
   }

   sin->sin_family      = AF_INET;
   sin->sin_port        = htons(7);
   sin->sin_addr.s_addr = INADDR_ANY;
   if(ext_bind(lfd, (struct sockaddr *)sin, sizeof (*sin)) == -1) {
      perror("bind");
      exit(1);
   }

   /* Enable ancillary data and notifications */
   memset((char*)&events,1,sizeof(events));
   if (ext_setsockopt(lfd, IPPROTO_SCTP, SCTP_EVENTS, &events, sizeof(events)) < 0) {
     perror("setsockopt SCTP_EVENTS");
     exit(1);
   }

   if(ext_listen(lfd, 1) == -1) {
      perror("listen");
      exit(1);
   }

   /* Wait for new associations */
   for (;;) {
     if((cfd = ext_accept(lfd, NULL, 0)) == -1) {
        perror("accept");
        exit(1);
     }

     /* Enable ancillary data and notifications */
     memset((char*)&events,1,sizeof(events));
     if(ext_setsockopt(cfd, IPPROTO_SCTP, SCTP_EVENTS, &events, sizeof(events)) < 0) {
        perror("setsockopt SCTP_EVENTS");
        exit(1);
     }

     /* Echo back any and all data */
     echo(cfd,0);
   }
}
static pthread_t
init_server(struct sockaddr_in local_addr, int port, void *(connection_handler ()))
{
    pthread_t tid;
    int fd;
    struct server_data *server_data_p;
    
    if ((fd = ext_socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP)) < 0)
        perror("socket call failed");
    
    
    local_addr.sin_port= htons(port);
    if(ext_bind(fd, (struct sockaddr *)&local_addr, sizeof(local_addr)) < 0)
        perror("bind call failed");

    if(ext_listen(fd, 1) < 0)
        perror("listen call failed");
        
    server_data_p = malloc(sizeof(struct server_data));
    server_data_p->fd = fd;
    server_data_p->connection_handler = connection_handler;
    if (verbose) {
        printf("Starting server on port %u.\n", port);
        fflush(stdout);
    }
    pthread_create(&tid, NULL, &start_server, (void *)server_data_p);
    return(tid);
}
Example #3
0
int main(int argc, char **argv)
{
    int fd, n, addr_len, len, msg_flags, close_time;
    size_t buffer_size;
    fd_set rset;
    char buffer[1000];
    struct sctp_event_subscribe evnts;
    struct sctp_sndrcvinfo sri;
    struct sockaddr_in local_addr, remote_addr;


    if (argc < 4) {
        printf("Usage: client local_port remote_addr remote_port [autoclose]\n");
        exit(-1);
    }

    if ((fd = ext_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP)) < 0)
        perror("socket");

    bzero(&evnts, sizeof(evnts));
    evnts.sctp_data_io_event = 1;
    evnts.sctp_association_event = 1;
    evnts.sctp_address_event = 1;
    evnts.sctp_send_failure_event = 1;
    evnts.sctp_peer_error_event = 1;
    evnts.sctp_shutdown_event = 1;
    evnts.sctp_partial_delivery_event = 1;
    evnts.sctp_adaption_layer_event = 1;

    if (ext_setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &evnts, sizeof(evnts)) < 0)
        perror("setsockopt");

    if (argc > 4) {
        close_time = atoi(argv[4]);
        if (ext_setsockopt(fd, IPPROTO_SCTP, SCTP_AUTOCLOSE, &close_time, sizeof(close_time)) < 0)
            perror("setsockopt");
    }

    bzero(&local_addr, sizeof(struct sockaddr_in));
    local_addr.sin_family      = AF_INET;
#ifdef HAVE_SIN_LEN
    local_addr.sin_len         = sizeof(struct sockaddr_in);
#endif
    local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    local_addr.sin_port        = htons(atoi(argv[1]));
    if (ext_bind(fd, (struct sockaddr *) &local_addr, sizeof(local_addr)) != 0)
        perror("bind");

    if (ext_listen(fd, 1) != 0)
        perror("listen");

    remote_addr.sin_family      = AF_INET;
    remote_addr.sin_port        = htons(atoi(argv[3]));
#ifdef HAVE_SIN_LEN
    remote_addr.sin_len         = sizeof(struct sockaddr_in);
#endif
    remote_addr.sin_addr.s_addr = inet_addr(argv[2]);

    FD_ZERO(&rset);

    while (1) {
        FD_SET(fd, &rset);
        FD_SET(0,  &rset);

        n = ext_select(fd + 1, &rset, NULL, NULL, NULL);

        if (n == 0) {
            printf("Timer was runnig off.\n");
        }

        if (FD_ISSET(0, &rset)) {
            printf("Reading from stdin.\n");
            len = ext_read(0, (void *) buffer, sizeof(buffer));
            if (len == 0)
                break;
            if (ext_sendto(fd, (const void *)buffer, len, 0, (const struct sockaddr *)&remote_addr, sizeof(remote_addr)) != len)
                perror("sendto");
        }

        if (FD_ISSET(fd, &rset)) {
            printf("Reading from network.\n");
            addr_len = sizeof(struct sockaddr_in);
            buffer_size = sizeof(buffer);
            if ((len = sctp_recvmsg(fd, (void *) buffer, buffer_size , (struct sockaddr *)&remote_addr, &addr_len, &sri,&msg_flags)) < 0)
                perror("recvfrom");
            else {
                if(msg_flags & MSG_NOTIFICATION) {
                    sctp_print_notification(buffer);
                    continue;
                } else {
                    printf("Message of length %d received from %s:%u: %.*s", len, inet_ntoa(remote_addr.sin_addr), ntohs(remote_addr.sin_port), len, buffer);
                }
            }
        }
    }
    if (ext_close(fd) < 0)
        perror("close");
    sleep(2);
    return 0;
}
Example #4
0
int main(int argc, char **argv) 
{
   int fd, n, addr_len, len;
   fd_set rset;
   char buffer[1000];
   struct sctp_event_subscribe evnts;
   struct sockaddr_in local_addr, remote_addr;
   

   if (argc != 4) {
      printf("Usage: client local_port remote_addr remote_port\n");
      exit(-1);
   }
   
   if ((fd = ext_socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP)) < 0)
      perror("socket");
      
   bzero(&evnts, sizeof(evnts));
   if (ext_setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &evnts, sizeof(evnts)) < 0)
      perror("setsockopt");
      
   bzero(&local_addr, sizeof(struct sockaddr_in));
   local_addr.sin_family      = AF_INET;
#ifdef HAVE_SIN_LEN
   local_addr.sin_len         = sizeof(struct sockaddr_in);
#endif
   local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
   local_addr.sin_port        = htons(atoi(argv[1]));
   if (ext_bind(fd, (struct sockaddr *) &local_addr, sizeof(local_addr)) != 0)
      perror("bind");

   if (ext_listen(fd, 1) != 0)
      perror("listen");
      
   remote_addr.sin_family      = AF_INET;
   remote_addr.sin_port        = htons(atoi(argv[3]));
#ifdef HAVE_SIN_LEN
   remote_addr.sin_len         = sizeof(struct sockaddr_in);
#endif
   remote_addr.sin_addr.s_addr = inet_addr(argv[2]);

   FD_ZERO(&rset);
   
   while (1) {
      FD_SET(fd, &rset);
      FD_SET(0,  &rset);

      puts("\n\n\n\nSELECT...\n");
      n = ext_select(fd + 1, &rset, NULL, NULL, NULL);
      
      if (n == 0) {
         printf("Timer was runnig off.\n");
      }
      
      if (FD_ISSET(0, &rset)) {
         printf("Reading from stdin.\n");
         len = ext_read(0, (void *) buffer, sizeof(buffer));
         if (len == 0) 
            break;
         if (ext_sendto(fd, (const void *)buffer, len, 0, (const struct sockaddr *)&remote_addr, sizeof(remote_addr)) != len)
            perror("sendto");
      }
            
      if (FD_ISSET(fd, &rset)) {
         printf("Reading from network.\n");
         addr_len = sizeof(struct sockaddr_in);
         if ((len = ext_recvfrom(fd, (void *) buffer, sizeof(buffer),0,(struct sockaddr *) &remote_addr, &addr_len)) < 0)
            {perror("recvfrom");
/*           puts("STOP!------------------");
             exit(1);
*/
            }
         else
            printf("Message of length %d received from %s:%u: %.*s", len, inet_ntoa(remote_addr.sin_addr), ntohs(remote_addr.sin_port), len, buffer);

      }
   }
   if (ext_close(fd) < 0)
      perror("close");
   sleep(2);
   return 0;
}