[PATCH 2/3] nwfilter: Display the pcap errror message

[Stefan Berger <stefanb@xxxxxxxxxx>]

From: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>

Display the pcap error message in the log.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>
---
 src/nwfilter/nwfilter_dhcpsnoop.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/nwfilter/nwfilter_dhcpsnoop.c b/src/nwfilter/nwfilter_dhcpsnoop.c
index de9c33b..7cb0ac0 100644
--- a/src/nwfilter/nwfilter_dhcpsnoop.c
+++ b/src/nwfilter/nwfilter_dhcpsnoop.c
@@ -1113,8 +1113,9 @@ virNWFilterSnoopDHCPOpen(const char *ifname, virMacAddr *mac,
     if (pcap_set_snaplen(handle, PCAP_PBUFSIZE) < 0 ||
         pcap_set_buffer_size(handle, PCAP_BUFFERSIZE) < 0 ||
         pcap_activate(handle) < 0) {
-        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                       _("setup of pcap handle failed"));
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("setup of pcap handle failed: %s"),
+                       pcap_geterr(handle));
         goto cleanup;
     }
 
-- 
1.8.1.4

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