--- freebsd_system.c.orig	Sun Jan 19 18:43:41 1997
+++ freebsd_system.c	Sun Jan 19 18:42:59 1997
@@ -75,6 +75,7 @@
 #include <sys/sysctl.h>
 #include <sys/dkstat.h>
 #include <sys/buf.h>
+#include <sys/time.h>
 #include <sys/vmmeter.h>
 #include <vm/vm.h>
 #include <net/if.h>
@@ -310,7 +311,8 @@
     Collect the Network-Traffic
 */
 
-    if (nl[N_IFNET].n_value != 0) {
+    if ((ifnetaddr = nl[N_IFNET].n_value) != 0) {
+#if __FreeBSD_version < 300000
 	struct ifnet ifnet;
 	kread(N_IFNET, &ifnetaddr, sizeof(ifnetaddr));
 	old_packets = packets;
@@ -322,6 +324,41 @@
 	    packets.collisions += ifnet.if_collisions;
 	    ifnetaddr = (u_long) ifnet.if_next;
 	}
+#else /* 3.0-* */
+	/* Stolen from netstat/if.c */
+        struct ifnet ifnet;
+        struct ifnethead ifnethead;
+        u_long ifaddraddr, ifnetfound;
+	struct ifaddr ifa;
+
+        if(kvm_read(kd, ifnetaddr, (char *)&ifnethead, sizeof ifnethead) == -1)
+	    return;
+        ifnetaddr = (u_long)ifnethead.tqh_first;
+        if(kvm_read(kd, ifnetaddr, (char *)&ifnet, sizeof ifnet) == -1)
+	    return;
+
+	old_packets = packets;
+	packets.input = packets.output = packets.collisions = 0;
+        ifaddraddr = 0;
+        while (ifnetaddr || ifaddraddr) {
+	    if (ifaddraddr == 0) {
+		ifnetfound = ifnetaddr;
+		if(kvm_read(kd, ifnetaddr, (char *)&ifnet, sizeof ifnet) == -1)
+		    return;
+		ifnetaddr = (u_long)ifnet.if_link.tqe_next;
+		ifaddraddr = (u_long)ifnet.if_addrhead.tqh_first;
+	    }
+	    if (kvm_read(kd, ifaddraddr, (char *)&ifa, sizeof ifa) == -1) {
+	      ifaddraddr = 0;
+	      continue;
+	    }
+	    ifaddraddr = (u_long)ifa.ifa_link.tqe_next;
+
+	    packets.input += ifnet.if_ipackets;
+	    packets.output += ifnet.if_opackets;
+	    packets.collisions += ifnet.if_collisions;
+	}
+#endif
     }
 
 /*