+ buffer_len = 0;
+ status = sysctlbyname ("net.inet.tcp.pcblist", NULL, &buffer_len, 0, 0);
+ if (status < 0)
+ {
+ ERROR ("tcpconns plugin: sysctlbyname failed.");
+ return (-1);
+ }
+
+ buffer = (char *) malloc (buffer_len);
+ if (buffer == NULL)
+ {
+ ERROR ("tcpconns plugin: malloc failed.");
+ return (-1);
+ }
+
+ status = sysctlbyname ("net.inet.tcp.pcblist", buffer, &buffer_len, 0, 0);
+ if (status < 0)
+ {
+ ERROR ("tcpconns plugin: sysctlbyname failed.");
+ sfree (buffer);
+ return (-1);
+ }
+
+ if (buffer_len <= sizeof (struct xinpgen))
+ {
+ ERROR ("tcpconns plugin: (buffer_len <= sizeof (struct xinpgen))");
+ sfree (buffer);
+ return (-1);
+ }
+
+ in_orig = (struct xinpgen *) buffer;
+ for (in_ptr = (struct xinpgen *) (((char *) in_orig) + in_orig->xig_len);
+ in_ptr->xig_len > sizeof (struct xinpgen);
+ in_ptr = (struct xinpgen *) (((char *) in_ptr) + in_ptr->xig_len))
+ {
+ struct tcpcb *tp = &((struct xtcpcb *) in_ptr)->xt_tp;
+ struct inpcb *inp = &((struct xtcpcb *) in_ptr)->xt_inp;
+ struct xsocket *so = &((struct xtcpcb *) in_ptr)->xt_socket;
+
+ /* Ignore non-TCP sockets */
+ if (so->xso_protocol != IPPROTO_TCP)
+ continue;
+
+ /* Ignore PCBs which were freed during copyout. */
+ if (inp->inp_gencnt > in_orig->xig_gen)
+ continue;
+
+ if (((inp->inp_vflag & INP_IPV4) == 0)
+ && ((inp->inp_vflag & INP_IPV6) == 0))
+ continue;
+
+ conn_handle_ports (inp->inp_lport, inp->inp_fport, tp->t_state);
+ } /* for (in_ptr) */
+
+ in_orig = NULL;
+ in_ptr = NULL;
+ sfree (buffer);