1 files changed, 28 insertions, 0 deletions
diff --git a/pcap-snf.c b/pcap-snf.c
index a72fdd88..207c4959 100644
--- a/pcap-snf.c
+++ b/pcap-snf.c
@@ -490,3 +490,31 @@ snf_create(const char *device, char *ebuf, int *is_ours)
 	ps->snf_boardnum = boardnum;
 	return p;
 }
+
+#ifdef SNF_ONLY
+/*
+ * This libpcap build supports only SNF cards, not regular network
+ * interfaces..
+ */
+
+/*
+ * There are no regular interfaces, just DAG interfaces.
+ */
+int
+pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf)
+{
+	*alldevsp = NULL;
+	return (0);
+}
+
+/*
+ * Attempts to open a regular interface fail.
+ */
+pcap_t *
+pcap_create_interface(const char *device, char *errbuf)
+{
+	pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
+	    "This version of libpcap only supports SNF cards");
+	return NULL;
+}
+#endif