tr_query
struct tr_query *qry;
qry = (struct tr_query *)data;
#define QLEN sizeof(struct tr_query)
struct tr_query *query, *rquery;
datalen = sizeof(struct tr_query);
query = (struct tr_query *)(send_buf + MIN_IP_HEADER_LEN + IGMP_MINLEN);
rquery = (struct tr_query *)(igmp + 1);
struct tr_query q; /* Query/response header */
struct tr_query *tr = (struct tr_query *)(bp + 8);
struct tr_query *tr = (struct tr_query *)(bp + 8);