plugin.c: Print lt_dlopen() error messages to STDERR as well.

[collectd.git] / src / dns.c

diff --git a/src/dns.c b/src/dns.c
index 5af9c20..0801fe7 100644 (file)
--- a/src/dns.c
+++ b/src/dns.c
@@ -239,13 +239,11 @@ static void *dns_child_loop (void *dummy)
        memset (&fp, 0, sizeof (fp));
        if (pcap_compile (pcap_obj, &fp, "udp port 53", 1, 0) < 0)
        {
-               DEBUG ("pcap_compile failed");
                ERROR ("dns plugin: pcap_compile failed");
                return (NULL);
        }
        if (pcap_setfilter (pcap_obj, &fp) < 0)
        {
-               DEBUG ("pcap_setfilter failed");
                ERROR ("dns plugin: pcap_setfilter failed");
                return (NULL);
        }
@@ -348,7 +346,9 @@ static int dns_read (void)
        values[0] = tr_queries;
        values[1] = tr_responses;
        pthread_mutex_unlock (&traffic_mutex);
-       submit_octets (values[0], values[1]);
+
+       if ((values[0] != 0) || (values[1] != 0))
+               submit_octets (values[0], values[1]);
 
        pthread_mutex_lock (&qtype_mutex);
        for (ptr = qtype_list, len = 0;