Merge pull request #2618 from ajssmith/amqp1_dev1_branch
[collectd.git] / src / syslog.c
index 834ba79..beb8245 100644 (file)
@@ -1,31 +1,36 @@
 /**
  * collectd - src/syslog.c
- * Copyright (C) 2007  Florian Forster
+ * Copyright (C) 2007       Florian Forster
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
  *
  * Authors:
- *   Florian Forster <octo at verplant.org>
+ *   Florian Forster <octo at collectd.org>
  **/
 
 #include "collectd.h"
+
 #include "common.h"
 #include "plugin.h"
 
 #if HAVE_SYSLOG_H
-# include <syslog.h>
+#include <syslog.h>
 #endif
 
 #if COLLECT_DEBUG
@@ -33,124 +38,113 @@ static int log_level = LOG_DEBUG;
 #else
 static int log_level = LOG_INFO;
 #endif /* COLLECT_DEBUG */
-static int notif_severity = 0;
+static int notif_severity;
 
-static const char *config_keys[] =
-{
-       "LogLevel",
-       "NotifyLevel",
+static const char *config_keys[] = {
+    "LogLevel", "NotifyLevel",
 };
 static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
 
-static int sl_config (const char *key, const char *value)
-{
-       if (strcasecmp (key, "LogLevel") == 0)
-       {
-               log_level = parse_log_severity (value);
-               if (log_level < 0)
-               {
-                       log_level = LOG_INFO;
-                       ERROR ("syslog: invalid loglevel [%s] defaulting to 'info'", value);
-                       return (1);
-               }
-       }
-       else if (strcasecmp (key, "NotifyLevel") == 0)
-       {
-               notif_severity = parse_notif_severity (value);
-               if (notif_severity < 0)
-                       return (1);
-       }
-
-       return (0);
+static int sl_config(const char *key, const char *value) {
+  if (strcasecmp(key, "LogLevel") == 0) {
+    log_level = parse_log_severity(value);
+    if (log_level < 0) {
+      log_level = LOG_INFO;
+      ERROR("syslog: invalid loglevel [%s] defaulting to 'info'", value);
+      return 1;
+    }
+  } else if (strcasecmp(key, "NotifyLevel") == 0) {
+    notif_severity = parse_notif_severity(value);
+    if (notif_severity < 0)
+      return 1;
+  }
+
+  return 0;
 } /* int sl_config */
 
-static void sl_log (int severity, const char *msg,
-               user_data_t __attribute__((unused)) *user_data)
-{
-       if (severity > log_level)
-               return;
+static void sl_log(int severity, const char *msg,
+                   user_data_t __attribute__((unused)) * user_data) {
+  if (severity > log_level)
+    return;
 
-       syslog (severity, "%s", msg);
+  syslog(severity, "%s", msg);
 } /* void sl_log */
 
-static int sl_shutdown (void)
-{
-       closelog ();
+static int sl_shutdown(void) {
+  closelog();
 
-       return (0);
+  return 0;
 }
 
-static int sl_notification (const notification_t *n,
-               user_data_t __attribute__((unused)) *user_data)
-{
-       char  buf[1024] = "";
-       size_t offset = 0;
-       int log_severity;
-       char *severity_string;
-       int status;
-
-       if (n->severity > notif_severity)
-               return (0);
-
-       switch (n->severity)
-       {
-               case NOTIF_FAILURE:
-                       severity_string = "FAILURE";
-                       log_severity = LOG_ERR;
-                       break;
-               case NOTIF_WARNING:
-                       severity_string = "WARNING";
-                       log_severity = LOG_WARNING;
-                       break;
-               case NOTIF_OKAY:
-                       severity_string = "OKAY";
-                       log_severity = LOG_NOTICE;
-                       break;
-               default:
-                       severity_string = "UNKNOWN";
-                       log_severity = LOG_ERR;
-       }
-
-#define BUFFER_ADD(...) do { \
-       status = ssnprintf (&buf[offset], sizeof (buf) - offset, \
-                       __VA_ARGS__); \
-       if (status < 1) \
-               return (-1); \
-       else if (((size_t) status) >= (sizeof (buf) - offset)) \
-               return (-ENOMEM); \
-       else \
-               offset += ((size_t) status); \
-} while (0)
-
-#define BUFFER_ADD_FIELD(field) do { \
-       if (n->field[0]) \
-               BUFFER_ADD (", " #field " = %s", n->field); \
-} while (0)
-
-       BUFFER_ADD ("Notification: severity = %s", severity_string);
-       BUFFER_ADD_FIELD (host);
-       BUFFER_ADD_FIELD (plugin);
-       BUFFER_ADD_FIELD (plugin_instance);
-       BUFFER_ADD_FIELD (type);
-       BUFFER_ADD_FIELD (type_instance);
-       BUFFER_ADD_FIELD (message);
+static int sl_notification(const notification_t *n,
+                           user_data_t __attribute__((unused)) * user_data) {
+  char buf[1024] = "";
+  size_t offset = 0;
+  int log_severity;
+  const char *severity_string;
+  int status;
+
+  if (n->severity > notif_severity)
+    return 0;
+
+  switch (n->severity) {
+  case NOTIF_FAILURE:
+    severity_string = "FAILURE";
+    log_severity = LOG_ERR;
+    break;
+  case NOTIF_WARNING:
+    severity_string = "WARNING";
+    log_severity = LOG_WARNING;
+    break;
+  case NOTIF_OKAY:
+    severity_string = "OKAY";
+    log_severity = LOG_NOTICE;
+    break;
+  default:
+    severity_string = "UNKNOWN";
+    log_severity = LOG_ERR;
+  }
+
+#define BUFFER_ADD(...)                                                        \
+  do {                                                                         \
+    status = snprintf(&buf[offset], sizeof(buf) - offset, __VA_ARGS__);        \
+    if (status < 1)                                                            \
+      return -1;                                                               \
+    else if (((size_t)status) >= (sizeof(buf) - offset))                       \
+      return -ENOMEM;                                                          \
+    else                                                                       \
+      offset += ((size_t)status);                                              \
+  } while (0)
+
+#define BUFFER_ADD_FIELD(field)                                                \
+  do {                                                                         \
+    if (n->field[0])                                                           \
+      BUFFER_ADD(", " #field " = %s", n->field);                               \
+  } while (0)
+
+  BUFFER_ADD("Notification: severity = %s", severity_string);
+  BUFFER_ADD_FIELD(host);
+  BUFFER_ADD_FIELD(plugin);
+  BUFFER_ADD_FIELD(plugin_instance);
+  BUFFER_ADD_FIELD(type);
+  BUFFER_ADD_FIELD(type_instance);
+  BUFFER_ADD_FIELD(message);
 
 #undef BUFFER_ADD_FIELD
 #undef BUFFER_ADD
 
-       buf[sizeof (buf) - 1] = '\0';
+  buf[sizeof(buf) - 1] = '\0';
 
-       sl_log (log_severity, buf, NULL);
+  sl_log(log_severity, buf, NULL);
 
-       return (0);
+  return 0;
 } /* int sl_notification */
 
-void module_register (void)
-{
-       openlog ("collectd", LOG_CONS | LOG_PID, LOG_DAEMON);
+void module_register(void) {
+  openlog("collectd", LOG_CONS | LOG_PID, LOG_DAEMON);
 
-       plugin_register_config ("syslog", sl_config, config_keys, config_keys_num);
-       plugin_register_log ("syslog", sl_log, /* user_data = */ NULL);
-       plugin_register_notification ("syslog", sl_notification, NULL);
-       plugin_register_shutdown ("syslog", sl_shutdown);
+  plugin_register_config("syslog", sl_config, config_keys, config_keys_num);
+  plugin_register_log("syslog", sl_log, /* user_data = */ NULL);
+  plugin_register_notification("syslog", sl_notification, NULL);
+  plugin_register_shutdown("syslog", sl_shutdown);
 } /* void module_register(void) */