X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fdns.c;h=74fab98d172337b3bdf2fc3b24477d868f229789;hb=1d883b12cf82b88972cacb72e083b8ffbb28d140;hp=c315eab960578f75df75476465726b387e9adf47;hpb=47faf00c18402cefd0e195d63ad48d5e7e6a4a92;p=collectd.git

diff --git a/src/dns.c b/src/dns.c
index c315eab9..74fab98d 100644
--- a/src/dns.c
+++ b/src/dns.c
@@ -19,6 +19,8 @@
  *   Florian octo Forster <octo at verplant.org>
  **/
 
+#define _BSD_SOURCE
+
 #include "collectd.h"
 #include "common.h"
 #include "plugin.h"
@@ -47,9 +49,10 @@ static const char *config_keys[] =
 {
 	"Interface",
 	"IgnoreSource",
-	NULL
+	"SelectNumericQueryTypes"
 };
-static int config_keys_num = 2;
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+static int select_numeric_qtype = 1;
 
 #define PCAP_SNAPLEN 1460
 static char   *pcap_device = NULL;
@@ -156,6 +159,13 @@ static int dns_config (const char *key, const char *value)
 		if (value != NULL)
 			ignore_list_add_name (value);
 	}
+	else if (strcasecmp (key, "SelectNumericQueryTypes") == 0)
+	{
+		if ((value != NULL) && IS_FALSE (value))
+			select_numeric_qtype = 0;
+		else
+			select_numeric_qtype = 1;
+	}
 	else
 	{
 		return (-1);
@@ -169,13 +179,24 @@ static void dns_child_callback (const rfc1035_header_t *dns)
 	if (dns->qr == 0)
 	{
 		/* This is a query */
+		int skip = 0;
+		if (!select_numeric_qtype)
+		{
+			const char *str = qtype_str(dns->qtype);
+			if ((str == NULL) || (str[0] == '#'))
+				skip = 1;
+		}
+
 		pthread_mutex_lock (&traffic_mutex);
 		tr_queries += dns->length;
 		pthread_mutex_unlock (&traffic_mutex);
 
-		pthread_mutex_lock (&qtype_mutex);
-		counter_list_add (&qtype_list,  dns->qtype,  1);
-		pthread_mutex_unlock (&qtype_mutex);
+		if (skip == 0)
+		{
+			pthread_mutex_lock (&qtype_mutex);
+			counter_list_add (&qtype_list, dns->qtype,  1);
+			pthread_mutex_unlock (&qtype_mutex);
+		}
 	}
 	else
 	{
@@ -195,7 +216,7 @@ static void dns_child_callback (const rfc1035_header_t *dns)
 	pthread_mutex_unlock (&opcode_mutex);
 }
 
-static void *dns_child_loop (void *dummy)
+static void *dns_child_loop (void __attribute__((unused)) *dummy)
 {
 	pcap_t *pcap_obj;
 	char    pcap_error[PCAP_ERRBUF_SIZE];
@@ -212,7 +233,7 @@ 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,
@@ -298,9 +319,8 @@ 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");
+	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));
 
@@ -317,10 +337,9 @@ 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");
-	strcpy (vl.type, "dns_octets");
+	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 (&vl);
 } /* void submit_counter */