Fix crash with "ether dst 1::2" as a filter.

Report an error, rather than crashing, if an IPv6 address is used for link-layer filtering.
the-tcpdump-group · Nov 10, 2013 · c513a47 · c513a47
1 parent 78bd68e
commit c513a47
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/gencode.c b/gencode.c
@@ -4573,6 +4573,9 @@ gen_host6(addr, mask, proto, dir, type)
 	case Q_DEFAULT:
 		return gen_host6(addr, mask, Q_IPV6, dir, type);
 
+	case Q_LINK:
+		bpf_error("link-layer modifier applied to ip6 %s", typestr);
+
 	case Q_IP:
 		bpf_error("'ip' modifier applied to ip6 %s", typestr);