Report failures of "pcap_stats()", as tcpdump does.

Print the "Capturing on <interface>" message, the running count of
packets captured, and error messages to the standard error in Tethereal,
so that you can pipe the output of a live capture that's printing
packets to a program or script without that script having to worry about
parsing stuff other than dissected packet summaries or details (tcpdump
does the same).

svn path=/trunk/; revision=3017

1 files changed, 6 insertions, 1 deletions

diff --git a/capture.c b/capture.c
index b8a0fa2faf..ff4d35ac56 100644
--- a/capture.c
+++ b/capture.c
@@ -1,7 +1,7 @@
 /* capture.c
  * Routines for packet capture windows
  *
- * $Id: capture.c,v 1.139 2001/02/11 09:28:15 guy Exp $
+ * $Id: capture.c,v 1.140 2001/02/11 21:29:03 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -1604,6 +1604,11 @@ capture(gboolean *stats_known, struct pcap_stat *stats)
        dropped. */
     if (pcap_stats(pch, stats) >= 0)
       *stats_known = TRUE;
+    else {
+      simple_dialog(ESD_TYPE_WARN, NULL,
+		"Can't get packet-drop statistics: %s",
+		pcap_geterr(pch));
+    }
     pcap_close(pch);
   }