contrib/docker: add LD_PRELOAD wrapper to fopen/open/opendir syscalls

[collectd.git] / src / powerdns.c

diff --git a/src/powerdns.c b/src/powerdns.c
index e215a8c..b5d4a32 100644 (file)
--- a/src/powerdns.c
+++ b/src/powerdns.c
@@ -28,7 +28,6 @@
 
 #include "common.h"
 #include "plugin.h"
-#include "configfile.h"
 #include "utils_llist.h"
 
 #include <sys/stat.h>
@@ -44,6 +43,7 @@
 # define UNIX_PATH_MAX sizeof (((struct sockaddr_un *)0)->sun_path)
 #endif
 #define FUNC_ERROR(func) do { char errbuf[1024]; ERROR ("powerdns plugin: %s failed: %s", func, sstrerror (errno, errbuf, sizeof (errbuf))); } while (0)
+#define SOCK_ERROR(func, sockpath) do { char errbuf[1024]; ERROR ("powerdns plugin: Socket `%s` %s failed: %s", sockpath, func, sstrerror (errno, errbuf, sizeof (errbuf))); } while (0)
 
 #define SERVER_SOCKET  LOCALSTATEDIR"/run/pdns.controlsocket"
 #define SERVER_COMMAND "SHOW * \n"
@@ -51,7 +51,7 @@
 #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\n"
+  "cache-misses questions \n"
 
 struct list_item_s;
 typedef struct list_item_s list_item_t;
@@ -301,10 +301,10 @@ static char *local_sockpath = NULL;
 
 /* <https://doc.powerdns.com/md/recursor/stats/> */
 static void submit (const char *plugin_instance, /* {{{ */
-    const char *pdns_type, const char *value)
+    const char *pdns_type, const char *value_str)
 {
   value_list_t vl = VALUE_LIST_INIT;
-  value_t values[1];
+  value_t value;
 
   const char *type = NULL;
   const char *type_instance = NULL;
@@ -319,7 +319,7 @@ static void submit (const char *plugin_instance, /* {{{ */
   if (i >= lookup_table_length)
   {
     INFO ("powerdns plugin: submit: Not found in lookup table: %s = %s;",
-        pdns_type, value);
+        pdns_type, value_str);
     return;
   }
 
@@ -346,16 +346,15 @@ static void submit (const char *plugin_instance, /* {{{ */
     return;
   }
 
-  if (0 != parse_value (value, &values[0], ds->ds[0].type))
+  if (0 != parse_value (value_str, &value, ds->ds[0].type))
   {
     ERROR ("powerdns plugin: Cannot convert `%s' "
-        "to a number.", value);
+        "to a number.", value_str);
     return;
   }
 
-  vl.values = values;
+  vl.values = &value;
   vl.values_len = 1;
-  sstrncpy (vl.host, hostname_g, sizeof (vl.host));
   sstrncpy (vl.plugin, "powerdns", sizeof (vl.plugin));
   sstrncpy (vl.type, type, sizeof (vl.type));
   if (type_instance != NULL)
@@ -378,7 +377,6 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
 
   struct sockaddr_un sa_unix = { 0 };
 
-  struct timeval stv_timeout;
   cdtime_t cdt_timeout;
 
   sd = socket (PF_UNIX, item->socktype, 0);
@@ -396,7 +394,7 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
   status = unlink (sa_unix.sun_path);
   if ((status != 0) && (errno != ENOENT))
   {
-    FUNC_ERROR ("unlink");
+    SOCK_ERROR ("unlink", sa_unix.sun_path);
     close (sd);
     return (-1);
   }
@@ -408,7 +406,7 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
     status = bind (sd, (struct sockaddr *) &sa_unix, sizeof (sa_unix));
     if (status != 0)
     {
-      FUNC_ERROR ("bind");
+      SOCK_ERROR ("bind", sa_unix.sun_path);
       break;
     }
 
@@ -416,7 +414,7 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
     status = chmod (sa_unix.sun_path, 0666);
     if (status != 0)
     {
-      FUNC_ERROR ("chmod");
+      SOCK_ERROR ("chmod", sa_unix.sun_path);
       break;
     }
 
@@ -424,12 +422,12 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
     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));
+    status = setsockopt (sd, SOL_SOCKET, SO_RCVTIMEO,
+                         &CDTIME_T_TO_TIMEVAL(cdt_timeout),
+                         sizeof(struct timeval));
     if (status != 0)
     {
-      FUNC_ERROR ("setsockopt");
+      SOCK_ERROR ("setsockopt", sa_unix.sun_path);
       break;
     }
 
@@ -437,21 +435,21 @@ static int powerdns_get_data_dgram (list_item_t *item, /* {{{ */
         sizeof (item->sockaddr));
     if (status != 0)
     {
-      FUNC_ERROR ("connect");
+      SOCK_ERROR ("connect", sa_unix.sun_path);
       break;
     }
 
     status = send (sd, item->command, strlen (item->command), 0);
     if (status < 0)
     {
-      FUNC_ERROR ("send");
+      SOCK_ERROR ("send", sa_unix.sun_path);
       break;
     }
 
     status = recv (sd, temp, sizeof (temp), /* flags = */ 0);
     if (status < 0)
     {
-      FUNC_ERROR ("recv");
+      SOCK_ERROR ("recv", sa_unix.sun_path);
       break;
     }
     buffer_size = status + 1;
@@ -514,7 +512,7 @@ static int powerdns_get_data_stream (list_item_t *item, /* {{{ */
       sizeof (item->sockaddr));
   if (status != 0)
   {
-    FUNC_ERROR ("connect");
+    SOCK_ERROR ("connect", item->sockaddr.sun_path);
     close (sd);
     return (-1);
   }
@@ -524,7 +522,7 @@ static int powerdns_get_data_stream (list_item_t *item, /* {{{ */
       /* flags = */ 0);
   if (status < 0)
   {
-    FUNC_ERROR ("send");
+    SOCK_ERROR ("send", item->sockaddr.sun_path);
     close (sd);
     return (-1);
   }
@@ -536,7 +534,7 @@ static int powerdns_get_data_stream (list_item_t *item, /* {{{ */
     status = recv (sd, temp, sizeof (temp), /* flags = */ 0);
     if (status < 0)
     {
-      FUNC_ERROR ("recv");
+      SOCK_ERROR ("recv", item->sockaddr.sun_path);
       break;
     }
     else if (status == 0)