Merge branch 'collectd-5.5'

[collectd.git] / src / curl_xml.c

diff --git a/src/curl_xml.c b/src/curl_xml.c
index 9049d99..39d6fd0 100644 (file)
--- a/src/curl_xml.c
+++ b/src/curl_xml.c
@@ -50,7 +50,7 @@ struct cx_xpath_s /* {{{ */
   char *path;
   char *type;
   cx_values_t *values;
-  int values_len;
+  size_t values_len;
   char *instance_prefix;
   char *instance;
   int is_table;
@@ -240,7 +240,7 @@ static int cx_check_type (const data_set_t *ds, cx_xpath_t *xpath) /* {{{ */
 
   if (ds->ds_num != xpath->values_len)
   {
-    WARNING ("curl_xml plugin: DataSet `%s' requires %i values, but config talks about %i",
+    WARNING ("curl_xml plugin: DataSet `%s' requires %zu values, but config talks about %zu",
         xpath->type, ds->ds_num, xpath->values_len);
     return (-1);
   }
@@ -343,6 +343,7 @@ static int cx_handle_single_value_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
 
   /* free up object */
   xmlXPathFreeObject (values_node_obj);
+  sfree (node_value);
 
   /* We have reached here which means that
    * we have got something to work */
@@ -355,7 +356,7 @@ static int cx_handle_all_value_xpaths (xmlXPathContextPtr xpath_ctx, /* {{{ */
 {
   value_t values[xpath->values_len];
   int status;
-  int i;
+  size_t i;
 
   assert (xpath->values_len > 0);
   assert (xpath->values_len == vl->values_len);
@@ -387,7 +388,7 @@ static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
   /* If the base xpath returns more than one block, the result is assumed to be
    * a table. The `Instance' option is not optional in this case. Check for the
    * condition and inform the user. */
-  if (is_table)
+  if (is_table && (xpath->instance == NULL))
   {
     WARNING ("curl_xml plugin: "
         "Base-XPath %s is a table (more than one result was returned), "
@@ -440,8 +441,12 @@ static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
   if (xpath->instance_prefix != NULL)
   {
     if (instance_node != NULL)
+    {
+      char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
       ssnprintf (vl->type_instance, sizeof (vl->type_instance),"%s%s",
-          xpath->instance_prefix, (char *) xmlNodeGetContent(instance_node->nodeTab[0]));
+          xpath->instance_prefix, node_value);
+      sfree (node_value);
+    }
     else
       sstrncpy (vl->type_instance, xpath->instance_prefix,
           sizeof (vl->type_instance));
@@ -451,8 +456,11 @@ static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
     /* If instance_prefix and instance_node are NULL, then
      * don't set the type_instance */
     if (instance_node != NULL)
-      sstrncpy (vl->type_instance, (char *) xmlNodeGetContent(instance_node->nodeTab[0]),
-          sizeof (vl->type_instance));
+    {
+      char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
+      sstrncpy (vl->type_instance, node_value, sizeof (vl->type_instance));
+      sfree (node_value);
+    }
   }
 
   /* Free `instance_node_obj' this late, because `instance_node' points to
@@ -681,7 +689,7 @@ static int cx_config_add_values (const char *name, cx_xpath_t *xpath, /* {{{ */
   xpath->values = (cx_values_t *) malloc (sizeof (cx_values_t) * ci->values_num);
   if (xpath->values == NULL)
     return (-1);
-  xpath->values_len = ci->values_num;
+  xpath->values_len = (size_t) ci->values_num;
 
   /* populate cx_values_t structure */
   for (i = 0; i < ci->values_num; i++)
@@ -690,17 +698,18 @@ static int cx_config_add_values (const char *name, cx_xpath_t *xpath, /* {{{ */
     sstrncpy (xpath->values[i].path, ci->values[i].value.string, sizeof (xpath->values[i].path));
   }
 
-  return (0); 
+  return (0);
 } /* }}} cx_config_add_values */
 
-static int cx_config_add_xpath (cx_t *db, /* {{{ */
-                                   oconfig_item_t *ci)
+static int cx_config_add_xpath (cx_t *db, oconfig_item_t *ci) /* {{{ */
 {
   cx_xpath_t *xpath;
+  char *name;
+  llentry_t *le;
   int status;
   int i;
 
-  xpath = (cx_xpath_t *) malloc (sizeof (*xpath));
+  xpath = malloc (sizeof (*xpath));
   if (xpath == NULL)
   {
     ERROR ("curl_xml plugin: malloc failed.");
@@ -711,15 +720,16 @@ static int cx_config_add_xpath (cx_t *db, /* {{{ */
   status = cf_util_get_string (ci, &xpath->path);
   if (status != 0)
   {
-    sfree (xpath);
+    cx_xpath_free (xpath);
     return (status);
   }
 
   /* error out if xpath->path is an empty string */
-  if (*xpath->path == 0)
+  if (strlen (xpath->path) == 0)
   {
     ERROR ("curl_xml plugin: invalid xpath. "
            "xpath value can't be an empty string");
+    cx_xpath_free (xpath);
     return (-1);
   }
 
@@ -746,45 +756,49 @@ static int cx_config_add_xpath (cx_t *db, /* {{{ */
       break;
   } /* for (i = 0; i < ci->children_num; i++) */
 
-  if (status == 0 && xpath->type == NULL)
+  if (status != 0)
   {
-    WARNING ("curl_xml plugin: `Type' missing in `xpath' block.");
-    status = -1;
+    cx_xpath_free (xpath);
+    return status;
   }
 
-  if (status == 0)
+  if (xpath->type == NULL)
   {
-    char *name;
-    llentry_t *le;
+    WARNING ("curl_xml plugin: `Type' missing in `xpath' block.");
+    cx_xpath_free (xpath);
+    return -1;
+  }
 
+  if (db->list == NULL)
+  {
+    db->list = llist_create();
     if (db->list == NULL)
     {
-      db->list = llist_create();
-      if (db->list == NULL)
-      {
-        ERROR ("curl_xml plugin: list creation failed.");
-        return (-1);
-      }
-    }
-
-    name = strdup(xpath->path);
-    if (name == NULL)
-    {
-        ERROR ("curl_xml plugin: strdup failed.");
-        return (-1);
-    }
-
-    le = llentry_create (name, xpath);
-    if (le == NULL)
-    {
-      ERROR ("curl_xml plugin: llentry_create failed.");
+      ERROR ("curl_xml plugin: list creation failed.");
+      cx_xpath_free (xpath);
       return (-1);
     }
+  }
+
+  name = strdup (xpath->path);
+  if (name == NULL)
+  {
+    ERROR ("curl_xml plugin: strdup failed.");
+    cx_xpath_free (xpath);
+    return (-1);
+  }
 
-    llist_append (db->list, le);
+  le = llentry_create (name, xpath);
+  if (le == NULL)
+  {
+    ERROR ("curl_xml plugin: llentry_create failed.");
+    cx_xpath_free (xpath);
+    sfree (name);
+    return (-1);
   }
 
-  return (status);
+  llist_append (db->list, le);
+  return (0);
 } /* }}} int cx_config_add_xpath */
 
 static int cx_config_add_namespace (cx_t *db, /* {{{ */
@@ -889,8 +903,7 @@ static int cx_init_curl (cx_t *db) /* {{{ */
   if (db->timeout >= 0)
     curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) db->timeout);
   else
-    curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS,
-       CDTIME_T_TO_MS(plugin_get_interval()));
+    curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) CDTIME_T_TO_MS(plugin_get_interval()));
 #endif
 
   return (0);
@@ -933,6 +946,7 @@ static int cx_config_add_url (oconfig_item_t *ci) /* {{{ */
   {
     ERROR ("curl_xml plugin: cx_config: "
            "Invalid key: %s", ci->key);
+    cx_free (db);
     return (-1);
   }
 
@@ -1007,7 +1021,7 @@ static int cx_config_add_url (oconfig_item_t *ci) /* {{{ */
 
     cb_name = ssnprintf_alloc ("curl_xml-%s-%s", db->instance, db->url);
     plugin_register_complex_read (/* group = */ "curl_xml", cb_name, cx_read,
-                                  /* interval = */ NULL, &ud);
+                                  /* interval = */ 0, &ud);
     sfree (cb_name);
   }
   else