From 028204e0f99f0bad5dfd01add364ebd4f4befabb Mon Sep 17 00:00:00 2001
From: Guy Harris <guy@alum.mit.edu>
Date: Tue, 28 Dec 2010 13:15:26 -0800
Subject: [PATCH] Interface IDs are 0-origin.

That means that if an interface ID is greater than *or equal to* the
number of Interface Description Blocks we've seen, we haven't seen an
IDB for that interface.
---
 sf-pcap-ng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sf-pcap-ng.c b/sf-pcap-ng.c
index 9049991..1554320 100644
--- a/sf-pcap-ng.c
+++ b/sf-pcap-ng.c
@@ -1053,7 +1053,7 @@ found:
 	/*
 	 * Is the interface ID an interface we know?
 	 */
-	if (interface_id > p->sf.ifcount) {
+	if (interface_id >= p->sf.ifcount) {
 		/*
 		 * Yes.  Fail.
 		 */