dns plugin: Don't pass a NULL pointer to `pcap_open_live'.

[collectd.git] / src / dns.c

diff --git a/src/dns.c b/src/dns.c
index e9996b9..4d3106b 100644 (file)
--- a/src/dns.c
+++ b/src/dns.c
@@ -212,7 +212,7 @@ static void *dns_child_loop (void *dummy)
 
        /* Passing `pcap_device == NULL' is okay and the same as passign "any" */
        DEBUG ("Creating PCAP object..");
-       pcap_obj = pcap_open_live (pcap_device,
+       pcap_obj = pcap_open_live ((pcap_device != NULL) ? pcap_device : "any",
                        PCAP_SNAPLEN,
                        0 /* Not promiscuous */,
                        interval_g,
@@ -299,11 +299,12 @@ static void submit_counter (const char *type, const char *type_instance,
        vl.values = values;
        vl.values_len = 1;
        vl.time = time (NULL);
-       strcpy (vl.host, hostname_g);
-       strcpy (vl.plugin, "dns");
-       strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+       sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+       sstrncpy (vl.plugin, "dns", sizeof (vl.plugin));
+       sstrncpy (vl.type, type, sizeof (vl.type));
+       sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
 
-       plugin_dispatch_values (type, &vl);
+       plugin_dispatch_values (&vl);
 } /* void submit_counter */
 
 static void submit_octets (counter_t queries, counter_t responses)
@@ -317,10 +318,11 @@ static void submit_octets (counter_t queries, counter_t responses)
        vl.values = values;
        vl.values_len = 2;
        vl.time = time (NULL);
-       strcpy (vl.host, hostname_g);
-       strcpy (vl.plugin, "dns");
+       sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+       sstrncpy (vl.plugin, "dns", sizeof (vl.plugin));
+       sstrncpy (vl.type, "dns_octets", sizeof (vl.type));
 
-       plugin_dispatch_values ("dns_octets", &vl);
+       plugin_dispatch_values (&vl);
 } /* void submit_counter */
 
 static int dns_read (void)