Merge remote-tracking branch 'github/pr/387'

[collectd.git] / src / powerdns.c

diff --git a/src/powerdns.c b/src/powerdns.c
index 8799702792f27efa34cbed6e84aa354b0fe698f4..a140a126a98380b5277ed352d1adee51c9e2bf49 100644 (file)
--- a/src/powerdns.c
+++ b/src/powerdns.c
@@ -46,12 +46,12 @@
 #define FUNC_ERROR(func) do { char errbuf[1024]; ERROR ("powerdns plugin: %s failed: %s", func, sstrerror (errno, errbuf, sizeof (errbuf))); } while (0)
 
 #define SERVER_SOCKET  LOCALSTATEDIR"/run/pdns.controlsocket"
-#define SERVER_COMMAND "SHOW *"
+#define SERVER_COMMAND "SHOW * \n"
 
 #define RECURSOR_SOCKET  LOCALSTATEDIR"/run/pdns_recursor.controlsocket"
 #define RECURSOR_COMMAND "get noerror-answers nxdomain-answers " \
   "servfail-answers sys-msec user-msec qa-latency cache-entries cache-hits " \
-  "cache-misses questions"
+  "cache-misses questions\n"
 
 struct list_item_s;
 typedef struct list_item_s list_item_t;
@@ -164,13 +164,13 @@ statname_lookup_t lookup_table[] = /* {{{ */
   {"latency",                "latency",      NULL},
 
   /* Other stuff.. */
-  {"corrupt-packets",        "io_packets",   "corrupt"},
+  {"corrupt-packets",        "ipt_packets",  "corrupt"},
   {"deferred-cache-inserts", "counter",      "cache-deferred_insert"},
   {"deferred-cache-lookup",  "counter",      "cache-deferred_lookup"},
   {"qsize-a",                "cache_size",   "answers"},
   {"qsize-q",                "cache_size",   "questions"},
-  {"servfail-packets",       "io_packets",   "servfail"},
-  {"timedout-packets",       "io_packets",   "timeout"},
+  {"servfail-packets",       "ipt_packets",  "servfail"},
+  {"timedout-packets",       "ipt_packets",  "timeout"},
   {"udp4-answers",           "dns_answer",   "udp4"},
   {"udp4-queries",           "dns_question", "queries-udp4"},
   {"udp6-answers",           "dns_answer",   "udp6"},
@@ -321,6 +321,9 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
 
   struct sockaddr_un sa_unix;
 
+  struct timeval stv_timeout;
+  cdtime_t cdt_timeout;
+
   sd = socket (PF_UNIX, item->socktype, 0);
   if (sd < 0)
   {
@@ -361,6 +364,19 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
       break;
     }
 
+    cdt_timeout = plugin_get_interval () * 3 / 4;
+    if (cdt_timeout < TIME_T_TO_CDTIME_T (2))
+      cdt_timeout = TIME_T_TO_CDTIME_T (2);
+
+    CDTIME_T_TO_TIMEVAL (cdt_timeout, &stv_timeout);
+
+    status = setsockopt (sd, SOL_SOCKET, SO_RCVTIMEO, &stv_timeout, sizeof (stv_timeout));
+    if (status != 0)
+    {
+      FUNC_ERROR ("setsockopt");
+      break;
+    }
+
     status = connect (sd, (struct sockaddr *) &item->sockaddr,
         sizeof (item->sockaddr));
     if (status != 0)
@@ -427,6 +443,11 @@ static int powerdns_get_data_stream (list_item_t *item, /* {{{ */
     return (-1);
   }
 
+  struct timeval timeout;
+  timeout.tv_sec=5;
+  timeout.tv_usec=0;
+  status = setsockopt (sd, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof (timeout));
+
   status = connect (sd, (struct sockaddr *) &item->sockaddr,
       sizeof (item->sockaddr));
   if (status != 0)
@@ -519,7 +540,7 @@ static int powerdns_read_server (list_item_t *item) /* {{{ */
   int fields_num;
 
   if (item->command == NULL)
-    item->command = strdup ("SHOW *");
+    item->command = strdup (SERVER_COMMAND);
   if (item->command == NULL)
   {
     ERROR ("powerdns plugin: strdup failed.");
@@ -600,7 +621,7 @@ static int powerdns_update_recursor_command (list_item_t *li) /* {{{ */
   else
   {
     sstrncpy (buffer, "get ", sizeof (buffer));
-    status = strjoin (&buffer[4], sizeof (buffer) - strlen ("get "),
+    status = strjoin (&buffer[strlen("get ")], sizeof (buffer) - strlen ("get "),
        li->fields, li->fields_num,
        /* seperator = */ " ");
     if (status < 0)
@@ -608,6 +629,14 @@ static int powerdns_update_recursor_command (list_item_t *li) /* {{{ */
       ERROR ("powerdns plugin: strjoin failed.");
       return (-1);
     }
+    buffer[sizeof (buffer) - 1] = 0;
+    int i = strlen (buffer);
+    if (i < sizeof (buffer) - 2)
+    {
+      buffer[i++] = ' ';
+      buffer[i++] = '\n';
+      buffer[i++] = '\0';
+    }
   }
 
   buffer[sizeof (buffer) - 1] = 0;
@@ -892,11 +921,18 @@ static int powerdns_config (oconfig_item_t *ci) /* {{{ */
       powerdns_config_add_server (option);
     else if (strcasecmp ("LocalSocket", option->key) == 0)
     {
-      char *temp = strdup (option->key);
-      if (temp == NULL)
-        return (1);
-      sfree (local_sockpath);
-      local_sockpath = temp;
+      if ((option->values_num != 1) || (option->values[0].type != OCONFIG_TYPE_STRING))
+      {
+        WARNING ("powerdns plugin: `%s' needs exactly one string argument.", option->key);
+      }
+      else
+      {
+        char *temp = strdup (option->values[0].value.string);
+        if (temp == NULL)
+          return (1);
+        sfree (local_sockpath);
+        local_sockpath = temp;
+      }
     }
     else
     {