1 files changed, 5 insertions, 1 deletions

diff --git a/contrib/libpcap/pcap-null.c b/contrib/libpcap/pcap-null.c
index 934fb2cc061c7..b5fa3ab91fabf 100644
--- a/contrib/libpcap/pcap-null.c
+++ b/contrib/libpcap/pcap-null.c
@@ -36,7 +36,7 @@
 static char nosup[] = "live packet capture not supported on this system";
 
 pcap_t *
-pcap_create_interface(const char *device, char *ebuf)
+pcap_create_interface(const char *device _U_, char *ebuf)
 {
 	(void)strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE);
 	return (NULL);
@@ -45,5 +45,9 @@ pcap_create_interface(const char *device, char *ebuf)
 int
 pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf)
 {
+	/*
+	 * There are no interfaces on which we can capture.
+	 */
+	*alldevsp = NULL;
 	return (0);
 }