--- nicstat.c	2016-12-06 05:43:16.000000000 -0700
+++ nicstat.c	2016-12-06 05:53:16.035042326 -0700
@@ -1637,8 +1637,11 @@
 	 */
 	if (lseek(net_dev, 0, SEEK_SET) != 0)
 		die(1, "lseek: %s", PROC_NET_DEV_PATH);
-	bufsiz = read(net_dev, (void *) proc_net_buffer,
-	    sizeof (proc_net_buffer));
+	bufsiz = 0;
+	while ((n = read(net_dev, (void *) proc_net_buffer + bufsiz,
+			 sizeof (proc_net_buffer) - bufsiz)) > 0) {
+		bufsiz += n;
+	}
 	if (bufsiz < 0)
 		die(1, "read: %s", PROC_NET_DEV_PATH);
 	else if (bufsiz < 200)