XXXX adding PID information to netstat output

*** 2720,2724 ****
--- 2720,2750 ----
          ctb->ctb_depth = getpcstack(ctb->ctb_stack, CONN_STACK_DEPTH);
          connp->conn_trace_last = last;
          return (1);
  }
  #endif
+ 
+ conn_pid_node_list_hdr_t *
+ conn_get_pid_list(conn_t *connp)
+ {
+         conn_pid_node_list_hdr_t        *cph;
+ 
+         if (connp->conn_upper_handle != NULL) {
+                 return (*connp->conn_upcalls->su_get_sock_pid_list)
+                         (connp->conn_upper_handle);
+         } else if (!IPCL_IS_NONSTR(connp) && connp->conn_rq != NULL &&
+                         connp->conn_rq->q_stream != NULL) {
+                 return (sh_get_pid_list(connp->conn_rq->q_stream));
+         }
+ 
+         /* return an empty header */
+         cph = kmem_zalloc(sizeof (conn_pid_node_list_hdr_t), KM_SLEEP);
+         cph->cph_magic = CONN_PID_NODE_LIST_HDR_MAGIC;
+         cph->cph_contents = CONN_PID_NODE_LIST_HDR_NON;
+         cph->cph_pn_cnt = 0;
+         cph->cph_tot_size = sizeof (conn_pid_node_list_hdr_t);
+         cph->cph_flags = 0;
+         cph->cph_optional1 = 0;
+         cph->cph_optional2 = 0;
+ 
+         return (cph);
+ }