X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fdaemon%2Fconfigfile.c;h=1a3c4f45c2360d521eaa82a0c1770a88068aedf6;hp=83e44b72cdb31b51b2b1ef814d4c50716e234f93;hb=54619dc85fd308b21ed09a0271e5c7383c7921b9;hpb=31ccd1103fadf7d1a6109252ca24f1ecb4d704ed

diff --git a/src/daemon/configfile.c b/src/daemon/configfile.c
index 83e44b72..1a3c4f45 100644
--- a/src/daemon/configfile.c
+++ b/src/daemon/configfile.c
@@ -29,11 +29,11 @@
 
 #include "liboconfig/oconfig.h"
 
-#include "common.h"
 #include "configfile.h"
 #include "filter_chain.h"
 #include "plugin.h"
 #include "types_list.h"
+#include "utils/common/common.h"
 
 #if HAVE_WORDEXP_H
 #include <wordexp.h>
@@ -76,7 +76,7 @@ typedef struct cf_value_map_s {
 typedef struct cf_global_option_s {
   const char *key;
   char *value;
-  _Bool from_cli; /* value set from CLI */
+  bool from_cli; /* value set from CLI */
   const char *def;
 } cf_global_option_t;
 
@@ -91,8 +91,8 @@ static int dispatch_block_plugin(oconfig_item_t *ci);
 /*
  * Private variables
  */
-static cf_callback_t *first_callback = NULL;
-static cf_complex_callback_t *complex_callback_head = NULL;
+static cf_callback_t *first_callback;
+static cf_complex_callback_t *complex_callback_head;
 
 static cf_value_map_t cf_value_map[] = {{"TypesDB", dispatch_value_typesdb},
                                         {"PluginDir", dispatch_value_plugindir},
@@ -190,13 +190,17 @@ static int cf_dispatch(const char *type, const char *orig_key,
 } /* int cf_dispatch */
 
 static int dispatch_global_option(const oconfig_item_t *ci) {
-  if (ci->values_num != 1)
+  if (ci->values_num != 1) {
+    ERROR("configfile: Global option `%s' needs exactly one argument.",
+          ci->key);
     return -1;
+  }
+
   if (ci->values[0].type == OCONFIG_TYPE_STRING)
     return global_option_set(ci->key, ci->values[0].value.string, 0);
   else if (ci->values[0].type == OCONFIG_TYPE_NUMBER) {
     char tmp[128];
-    snprintf(tmp, sizeof(tmp), "%lf", ci->values[0].value.number);
+    ssnprintf(tmp, sizeof(tmp), "%lf", ci->values[0].value.number);
     return global_option_set(ci->key, tmp, 0);
   } else if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN) {
     if (ci->values[0].value.boolean)
@@ -205,6 +209,8 @@ static int dispatch_global_option(const oconfig_item_t *ci) {
       return global_option_set(ci->key, "false", 0);
   }
 
+  ERROR("configfile: Global option `%s' argument has unknown type.", ci->key);
+
   return -1;
 } /* int dispatch_global_option */
 
@@ -234,37 +240,38 @@ static int dispatch_value_typesdb(oconfig_item_t *ci) {
 static int dispatch_value_plugindir(oconfig_item_t *ci) {
   assert(strcasecmp(ci->key, "PluginDir") == 0);
 
-  if (ci->values_num != 1)
-    return -1;
-  if (ci->values[0].type != OCONFIG_TYPE_STRING)
+  if (ci->values_num != 1 || ci->values[0].type != OCONFIG_TYPE_STRING) {
+    ERROR("configfile: The `PluginDir' option needs exactly one string "
+          "argument.");
     return -1;
+  }
 
   plugin_set_dir(ci->values[0].value.string);
   return 0;
 }
 
 static int dispatch_loadplugin(oconfig_item_t *ci) {
-  const char *name;
-  _Bool global = 0;
-  plugin_ctx_t ctx = {0};
-  plugin_ctx_t old_ctx;
-  int ret_val;
+  bool global = false;
 
   assert(strcasecmp(ci->key, "LoadPlugin") == 0);
 
-  if (ci->values_num != 1)
-    return -1;
-  if (ci->values[0].type != OCONFIG_TYPE_STRING)
+  if (ci->values_num != 1 || ci->values[0].type != OCONFIG_TYPE_STRING) {
+    ERROR("configfile: The `LoadPlugin' block needs exactly one string "
+          "argument.");
     return -1;
+  }
 
-  name = ci->values[0].value.string;
+  const char *name = ci->values[0].value.string;
   if (strcmp("libvirt", name) == 0)
     name = "virt";
 
   /* default to the global interval set before loading this plugin */
-  ctx.interval = cf_get_default_interval();
-  ctx.flush_interval = 0;
-  ctx.flush_timeout = 0;
+  plugin_ctx_t ctx = {
+      .interval = cf_get_default_interval(),
+      .name = strdup(name),
+  };
+  if (ctx.name == NULL)
+    return ENOMEM;
 
   for (int i = 0; i < ci->children_num; ++i) {
     oconfig_item_t *child = ci->children + i;
@@ -280,12 +287,12 @@ static int dispatch_loadplugin(oconfig_item_t *ci) {
     else {
       WARNING("Ignoring unknown LoadPlugin option \"%s\" "
               "for plugin \"%s\"",
-              child->key, ci->values[0].value.string);
+              child->key, name);
     }
   }
 
-  old_ctx = plugin_set_ctx(ctx);
-  ret_val = plugin_load(name, global);
+  plugin_ctx_t old_ctx = plugin_set_ctx(ctx);
+  int ret_val = plugin_load(name, global);
   /* reset to the "global" context */
   plugin_set_ctx(old_ctx);
 
@@ -305,13 +312,13 @@ static int dispatch_value_plugin(const char *plugin, oconfig_item_t *ci) {
 
     if (ci->values[i].type == OCONFIG_TYPE_STRING)
       status =
-          snprintf(buffer_ptr, buffer_free, " %s", ci->values[i].value.string);
+          ssnprintf(buffer_ptr, buffer_free, " %s", ci->values[i].value.string);
     else if (ci->values[i].type == OCONFIG_TYPE_NUMBER)
-      status =
-          snprintf(buffer_ptr, buffer_free, " %lf", ci->values[i].value.number);
+      status = ssnprintf(buffer_ptr, buffer_free, " %lf",
+                         ci->values[i].value.number);
     else if (ci->values[i].type == OCONFIG_TYPE_BOOLEAN)
-      status = snprintf(buffer_ptr, buffer_free, " %s",
-                        ci->values[i].value.boolean ? "true" : "false");
+      status = ssnprintf(buffer_ptr, buffer_free, " %s",
+                         ci->values[i].value.boolean ? "true" : "false");
 
     if ((status < 0) || (status >= buffer_free))
       return -1;
@@ -333,6 +340,9 @@ static int dispatch_value(oconfig_item_t *ci) {
       break;
     }
 
+  if (ret != 0)
+    return ret;
+
   for (int i = 0; i < cf_global_options_num; i++)
     if (strcasecmp(cf_global_options[i].key, ci->key) == 0) {
       ret = dispatch_global_option(ci);
@@ -343,16 +353,18 @@ static int dispatch_value(oconfig_item_t *ci) {
 } /* int dispatch_value */
 
 static int dispatch_block_plugin(oconfig_item_t *ci) {
-  const char *name;
+  assert(strcasecmp(ci->key, "Plugin") == 0);
 
-  if (strcasecmp(ci->key, "Plugin") != 0)
-    return -1;
-  if (ci->values_num < 1)
+  if (ci->values_num < 1) {
+    ERROR("configfile: The `Plugin' block requires arguments.");
     return -1;
-  if (ci->values[0].type != OCONFIG_TYPE_STRING)
+  }
+  if (ci->values[0].type != OCONFIG_TYPE_STRING) {
+    ERROR("configfile: First argument of `Plugin' block should be a string.");
     return -1;
+  }
 
-  name = ci->values[0].value.string;
+  const char *name = ci->values[0].value.string;
   if (strcmp("libvirt", name) == 0) {
     /* TODO(octo): Remove this legacy. */
     WARNING("The \"libvirt\" plugin has been renamed to \"virt\" to avoid "
@@ -370,9 +382,10 @@ static int dispatch_block_plugin(oconfig_item_t *ci) {
 
     /* default to the global interval set before loading this plugin */
     ctx.interval = cf_get_default_interval();
+    ctx.name = strdup(name);
 
     old_ctx = plugin_set_ctx(ctx);
-    status = plugin_load(name, /* flags = */ 0);
+    status = plugin_load(name, /* flags = */ false);
     /* reset to the "global" context */
     plugin_set_ctx(old_ctx);
 
@@ -399,10 +412,16 @@ static int dispatch_block_plugin(oconfig_item_t *ci) {
   }
 
   /* Hm, no complex plugin found. Dispatch the values one by one */
-  for (int i = 0; i < ci->children_num; i++) {
-    if (ci->children[i].children == NULL)
-      dispatch_value_plugin(name, ci->children + i);
-    else {
+  for (int i = 0, ret = 0; i < ci->children_num; i++) {
+    if (ci->children[i].children == NULL) {
+      oconfig_item_t *child = ci->children + i;
+      ret = dispatch_value_plugin(name, child);
+      if (ret != 0) {
+        ERROR("Plugin %s failed to handle option %s, return code: %i", name,
+              child->key, ret);
+        return ret;
+      }
+    } else {
       WARNING("There is a `%s' block within the "
               "configuration for the %s plugin. "
               "The plugin either only expects "
@@ -633,9 +652,7 @@ static oconfig_item_t *cf_read_dir(const char *dir, const char *pattern,
 
   dh = opendir(dir);
   if (dh == NULL) {
-    char errbuf[1024];
-    ERROR("configfile: opendir failed: %s",
-          sstrerror(errno, errbuf, sizeof(errbuf)));
+    ERROR("configfile: opendir failed: %s", STRERRNO);
     return NULL;
   }
 
@@ -653,7 +670,7 @@ static oconfig_item_t *cf_read_dir(const char *dir, const char *pattern,
     if ((de->d_name[0] == '.') || (de->d_name[0] == 0))
       continue;
 
-    status = snprintf(name, sizeof(name), "%s/%s", dir, de->d_name);
+    status = ssnprintf(name, sizeof(name), "%s/%s", dir, de->d_name);
     if ((status < 0) || ((size_t)status >= sizeof(name))) {
       ERROR("configfile: Not including `%s/%s' because its"
             " name is too long.",
@@ -764,9 +781,7 @@ static oconfig_item_t *cf_read_generic(const char *path, const char *pattern,
 
     status = stat(path_ptr, &statbuf);
     if (status != 0) {
-      char errbuf[1024];
-      WARNING("configfile: stat (%s) failed: %s", path_ptr,
-              sstrerror(errno, errbuf, sizeof(errbuf)));
+      WARNING("configfile: stat (%s) failed: %s", path_ptr, STRERRNO);
       continue;
     }
 
@@ -795,7 +810,7 @@ static oconfig_item_t *cf_read_generic(const char *path, const char *pattern,
 
   return root;
 } /* oconfig_item_t *cf_read_generic */
-/* #endif HAVE_WORDEXP_H */
+  /* #endif HAVE_WORDEXP_H */
 
 #else  /* if !HAVE_WORDEXP_H */
 static oconfig_item_t *cf_read_generic(const char *path, const char *pattern,
@@ -812,9 +827,7 @@ static oconfig_item_t *cf_read_generic(const char *path, const char *pattern,
 
   status = stat(path, &statbuf);
   if (status != 0) {
-    char errbuf[1024];
-    ERROR("configfile: stat (%s) failed: %s", path,
-          sstrerror(errno, errbuf, sizeof(errbuf)));
+    ERROR("configfile: stat (%s) failed: %s", path, STRERRNO);
     return NULL;
   }
 
@@ -831,7 +844,7 @@ static oconfig_item_t *cf_read_generic(const char *path, const char *pattern,
 /*
  * Public functions
  */
-int global_option_set(const char *option, const char *value, _Bool from_cli) {
+int global_option_set(const char *option, const char *value, bool from_cli) {
   int i;
   DEBUG("option = %s; value = %s;", option, value);
 
@@ -1040,16 +1053,12 @@ int cf_read(const char *filename) {
  * success. */
 int cf_util_get_string(const oconfig_item_t *ci, char **ret_string) /* {{{ */
 {
-  char *string;
-
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
-    ERROR("cf_util_get_string: The %s option requires "
-          "exactly one string argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one string argument.", ci->key);
     return -1;
   }
 
-  string = strdup(ci->values[0].value.string);
+  char *string = strdup(ci->values[0].value.string);
   if (string == NULL)
     return -1;
 
@@ -1061,21 +1070,19 @@ int cf_util_get_string(const oconfig_item_t *ci, char **ret_string) /* {{{ */
 } /* }}} int cf_util_get_string */
 
 /* Assures the config option is a string and copies it to the provided buffer.
- * Assures null-termination. */
+ * Assures NUL-termination. */
 int cf_util_get_string_buffer(const oconfig_item_t *ci, char *buffer, /* {{{ */
                               size_t buffer_size) {
   if ((ci == NULL) || (buffer == NULL) || (buffer_size < 1))
     return EINVAL;
 
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
-    ERROR("cf_util_get_string_buffer: The %s option requires "
-          "exactly one string argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one string argument.", ci->key);
     return -1;
   }
 
   strncpy(buffer, ci->values[0].value.string, buffer_size);
-  buffer[buffer_size - 1] = 0;
+  buffer[buffer_size - 1] = '\0';
 
   return 0;
 } /* }}} int cf_util_get_string_buffer */
@@ -1087,9 +1094,7 @@ int cf_util_get_int(const oconfig_item_t *ci, int *ret_value) /* {{{ */
     return EINVAL;
 
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) {
-    ERROR("cf_util_get_int: The %s option requires "
-          "exactly one numeric argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one numeric argument.", ci->key);
     return -1;
   }
 
@@ -1104,9 +1109,7 @@ int cf_util_get_double(const oconfig_item_t *ci, double *ret_value) /* {{{ */
     return EINVAL;
 
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) {
-    ERROR("cf_util_get_double: The %s option requires "
-          "exactly one numeric argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one numeric argument.", ci->key);
     return -1;
   }
 
@@ -1115,37 +1118,35 @@ int cf_util_get_double(const oconfig_item_t *ci, double *ret_value) /* {{{ */
   return 0;
 } /* }}} int cf_util_get_double */
 
-int cf_util_get_boolean(const oconfig_item_t *ci, _Bool *ret_bool) /* {{{ */
+int cf_util_get_boolean(const oconfig_item_t *ci, bool *ret_bool) /* {{{ */
 {
   if ((ci == NULL) || (ret_bool == NULL))
     return EINVAL;
 
   if ((ci->values_num != 1) || ((ci->values[0].type != OCONFIG_TYPE_BOOLEAN) &&
                                 (ci->values[0].type != OCONFIG_TYPE_STRING))) {
-    ERROR("cf_util_get_boolean: The %s option requires "
-          "exactly one boolean argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one boolean argument.", ci->key);
     return -1;
   }
 
   switch (ci->values[0].type) {
   case OCONFIG_TYPE_BOOLEAN:
-    *ret_bool = ci->values[0].value.boolean ? 1 : 0;
+    *ret_bool = ci->values[0].value.boolean ? true : false;
     break;
   case OCONFIG_TYPE_STRING:
-    WARNING("cf_util_get_boolean: Using string value `%s' for boolean option "
-            "`%s' is deprecated and will be removed in future releases. "
-            "Use unquoted true or false instead.",
-            ci->values[0].value.string, ci->key);
+    P_WARNING("Using string value `%s' for boolean option `%s' is deprecated "
+              "and will be removed in future releases. Use unquoted true or "
+              "false instead.",
+              ci->values[0].value.string, ci->key);
 
     if (IS_TRUE(ci->values[0].value.string))
-      *ret_bool = 1;
+      *ret_bool = true;
     else if (IS_FALSE(ci->values[0].value.string))
-      *ret_bool = 0;
+      *ret_bool = false;
     else {
-      ERROR("cf_util_get_boolean: Cannot parse string value `%s' of the `%s' "
-            "option as a boolean value.",
-            ci->values[0].value.string, ci->key);
+      P_ERROR("Cannot parse string value `%s' of the `%s' option as a boolean "
+              "value.",
+              ci->values[0].value.string, ci->key);
       return -1;
     }
     break;
@@ -1157,12 +1158,11 @@ int cf_util_get_boolean(const oconfig_item_t *ci, _Bool *ret_bool) /* {{{ */
 int cf_util_get_flag(const oconfig_item_t *ci, /* {{{ */
                      unsigned int *ret_value, unsigned int flag) {
   int status;
-  _Bool b;
 
   if (ret_value == NULL)
     return EINVAL;
 
-  b = 0;
+  bool b = false;
   status = cf_util_get_boolean(ci, &b);
   if (status != 0)
     return status;
@@ -1187,9 +1187,7 @@ int cf_util_get_port_number(const oconfig_item_t *ci) /* {{{ */
 
   if ((ci->values_num != 1) || ((ci->values[0].type != OCONFIG_TYPE_STRING) &&
                                 (ci->values[0].type != OCONFIG_TYPE_NUMBER))) {
-    ERROR("cf_util_get_port_number: The \"%s\" option requires "
-          "exactly one string argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one string argument.", ci->key);
     return -1;
   }
 
@@ -1199,11 +1197,9 @@ int cf_util_get_port_number(const oconfig_item_t *ci) /* {{{ */
   assert(ci->values[0].type == OCONFIG_TYPE_NUMBER);
   tmp = (int)(ci->values[0].value.number + 0.5);
   if ((tmp < 1) || (tmp > 65535)) {
-    ERROR("cf_util_get_port_number: The \"%s\" option requires "
-          "a service name or a port number. The number "
-          "you specified, %i, is not in the valid "
-          "range of 1-65535.",
-          ci->key, tmp);
+    P_ERROR("The `%s' option requires a service name or a port number. The "
+            "number you specified, %i, is not in the valid range of 1-65535.",
+            ci->key, tmp);
     return -1;
   }
 
@@ -1217,18 +1213,15 @@ int cf_util_get_service(const oconfig_item_t *ci, char **ret_string) /* {{{ */
   int status;
 
   if (ci->values_num != 1) {
-    ERROR("cf_util_get_service: The %s option requires exactly "
-          "one argument.",
-          ci->key);
+    P_ERROR("The `%s` option requires exactly one argument.", ci->key);
     return -1;
   }
 
   if (ci->values[0].type == OCONFIG_TYPE_STRING)
     return cf_util_get_string(ci, ret_string);
   if (ci->values[0].type != OCONFIG_TYPE_NUMBER) {
-    ERROR("cf_util_get_service: The %s option requires "
-          "exactly one string or numeric argument.",
-          ci->key);
+    P_ERROR("The `%s` option requires exactly one string or numeric argument.",
+            ci->key);
   }
 
   port = 0;
@@ -1236,19 +1229,17 @@ int cf_util_get_service(const oconfig_item_t *ci, char **ret_string) /* {{{ */
   if (status != 0)
     return status;
   else if ((port < 1) || (port > 65535)) {
-    ERROR("cf_util_get_service: The port number given "
-          "for the %s option is out of "
-          "range (%i).",
-          ci->key, port);
+    P_ERROR("The port number given for the `%s` option is out of range (%i).",
+            ci->key, port);
     return -1;
   }
 
   service = malloc(6);
   if (service == NULL) {
-    ERROR("cf_util_get_service: Out of memory.");
+    P_ERROR("cf_util_get_service: Out of memory.");
     return -1;
   }
-  snprintf(service, 6, "%i", port);
+  ssnprintf(service, 6, "%i", port);
 
   sfree(*ret_string);
   *ret_string = service;
@@ -1262,16 +1253,13 @@ int cf_util_get_cdtime(const oconfig_item_t *ci, cdtime_t *ret_value) /* {{{ */
     return EINVAL;
 
   if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_NUMBER)) {
-    ERROR("cf_util_get_cdtime: The %s option requires "
-          "exactly one numeric argument.",
-          ci->key);
+    P_ERROR("The `%s' option requires exactly one numeric argument.", ci->key);
     return -1;
   }
 
   if (ci->values[0].value.number < 0.0) {
-    ERROR("cf_util_get_cdtime: The numeric argument of the %s "
-          "option must not be negative.",
-          ci->key);
+    P_ERROR("The numeric argument of the `%s' option must not be negative.",
+            ci->key);
     return -1;
   }