If WinPcap isn't loaded, return NULL from pcap_lookupdev() instead

of asserting. Returning an empty interface list is more graceful than
crashing.

svn path=/trunk/; revision=31188

1 files changed, 3 insertions, 1 deletions

diff --git a/capture-wpcap.c b/capture-wpcap.c
index 8f7815488c..1c925e2bfe 100644
--- a/capture-wpcap.c
+++ b/capture-wpcap.c
@@ -213,7 +213,9 @@ load_wpcap(void)
 char*
 pcap_lookupdev (char *a)
 {
-	g_assert(has_wpcap);
+	if (!has_wpcap) {
+		return NULL;
+	}
 	return p_pcap_lookupdev(a);
 }