From: guy <guy>
Date: Thu, 8 Aug 2002 09:09:58 +0000 (+0000)
Subject: Token Ring multicasts are handled the same way other 802.x multicasts
X-Git-Tag: libpcap-0.8-bp~138
X-Git-Url: https://git.tcpdump.org/libpcap/commitdiff_plain/32bfe4054737240b427abb11b66a65a8422693fd

Token Ring multicasts are handled the same way other 802.x multicasts
are handled, with an I/G bit at the bottom (when handed to the host) of
the first byte of the destination address.
---

diff --git a/gencode.c b/gencode.c
index e296afda..71aec3d9 100644
--- a/gencode.c
+++ b/gencode.c
@@ -21,7 +21,7 @@
  */
 #ifndef lint
 static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.176 2002-08-08 08:22:45 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.177 2002-08-08 09:09:58 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -4343,13 +4343,19 @@ gen_multicast(proto)
 		}
 
 		if (linktype == DLT_FDDI) {
-			/* XXX TEST THIS: MIGHT NOT PORT PROPERLY XXX */
+			/*
+			 * XXX TEST THIS: MIGHT NOT PORT PROPERLY XXX
+			 *
+			 * XXX - was that referring to bit-order issues?
+			 */
 			/* fddi[1] & 1 != 0 */
 			return gen_mac_multicast(1);
 		}
 
-		/* TODO - check how token ring handles multicast */
-		/* if (linktype == DLT_IEEE802) ... */
+		if (linktype == DLT_IEEE802) {
+			/* tr[2] & 1 != 0 */
+			return gen_mac_multicast(2);
+		}
 
 		if (linktype == DLT_IEEE802_11) {
 			/*