C++ (Cpp) print_event_stream Examples

Example #1

File: iwevent.c Project: anansi/Asset_Tracking

/*
 * Respond to a single RTM_NEWLINK event from the rtnetlink socket.
 */
static int
LinkCatcher(struct nlmsghdr *nlh)
{
  struct ifinfomsg* ifi;

#if 0
  fprintf(stderr, "nlmsg_type = %d.\n", nlh->nlmsg_type);
#endif

  ifi = NLMSG_DATA(nlh);

  /* Code is ugly, but sort of works - Jean II */

  /* If interface is getting destoyed */
  if(nlh->nlmsg_type == RTM_DELLINK)
    {
      /* Remove from cache (if in cache) */
      iw_del_interface_data(ifi->ifi_index);
      return 0;
    }

  /* Only keep add/change events */
  if(nlh->nlmsg_type != RTM_NEWLINK)
    return 0;

  /* Check for attributes */
  if (nlh->nlmsg_len > NLMSG_ALIGN(sizeof(struct ifinfomsg)))
    {
      int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(sizeof(struct ifinfomsg));
      struct rtattr *attr = (void *) ((char *) ifi +
				      NLMSG_ALIGN(sizeof(struct ifinfomsg)));

      while (RTA_OK(attr, attrlen))
	{
	  /* Check if the Wireless kind */
	  if(attr->rta_type == IFLA_WIRELESS)
	    {
	      /* Go to display it */
	      print_event_stream(ifi->ifi_index,
				 (char *) attr + RTA_ALIGN(sizeof(struct rtattr)),
				 attr->rta_len - RTA_ALIGN(sizeof(struct rtattr)));
	    }
	  attr = RTA_NEXT(attr, attrlen);
	}
    }

  return 0;
}

Example #2

File: iwevent.c Project: appleorange1/asus-rt-n12-lx

/*
 * Respond to a single RTM_NEWLINK event from the rtnetlink socket.
 */
static int
LinkCatcher(struct nlmsghdr *nlh)
{
  struct ifinfomsg* ifi;
  char ifname[IFNAMSIZ + 1];

#if 0
  fprintf(stderr, "nlmsg_type = %d.\n", nlh->nlmsg_type);
#endif

  if(nlh->nlmsg_type != RTM_NEWLINK)
    return 0;

  ifi = NLMSG_DATA(nlh);

  /* Get a name... */
  index2name(ifi->ifi_index, ifname);

#if WIRELESS_EXT > 13
  /* Code is ugly, but sort of works - Jean II */

  /* Check for attributes */
  if (nlh->nlmsg_len > NLMSG_ALIGN(sizeof(struct ifinfomsg))) {
      int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(sizeof(struct ifinfomsg));
      struct rtattr *attr = (void*)ifi + NLMSG_ALIGN(sizeof(struct ifinfomsg));

      while (RTA_OK(attr, attrlen)) {
	/* Check if the Wireless kind */
	if(attr->rta_type == IFLA_WIRELESS) {
	  /* Go to display it */
	  print_event_stream(ifname,
			     (void *)attr + RTA_ALIGN(sizeof(struct rtattr)),
			     attr->rta_len - RTA_ALIGN(sizeof(struct rtattr)));
	}
	attr = RTA_NEXT(attr, attrlen);
      }
  }
#endif	/* WIRELESS_EXT > 13 */

  return 0;
}