From 5bc935fb1fd57cb9048660740c3d62606964f76c Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@leeloo.lan.home.verplant.org>
Date: Wed, 14 Mar 2007 09:55:51 +0100
Subject: [PATCH] syslog plugin: Added a `syslog' plugin which logs to syslog,
 using the new `log' interface.

---
 configure.in    |  2 +
 src/Makefile.am |  8 ++++
 src/syslog.c    | 97 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 src/syslog.c

diff --git a/configure.in b/configure.in
index 48029d05..39c7e98b 100644
--- a/configure.in
+++ b/configure.in
@@ -1176,6 +1176,7 @@ AC_COLLECTD([processes], [disable], [module], [processes statistics])
 AC_COLLECTD([sensors],   [disable], [module], [lm_sensors statistics])
 AC_COLLECTD([serial],    [disable], [module], [serial statistics])
 AC_COLLECTD([swap],      [disable], [module], [swap statistics])
+AC_COLLECTD([syslog],    [disable], [module], [syslog log facility])
 AC_COLLECTD([tape],      [disable], [module], [tape statistics])
 AC_COLLECTD([traffic],   [disable], [module], [system traffic statistics])
 AC_COLLECTD([unixsock],  [disable], [module], [UNIX socket plugin])
@@ -1235,6 +1236,7 @@ Configuration:
     sensors . . . . . . $enable_sensors
     serial  . . . . . . $enable_serial
     swap  . . . . . . . $enable_swap
+    syslog  . . . . . . $enable_syslog
     tape  . . . . . . . $enable_tape
     traffic . . . . . . $enable_traffic
     unixsock  . . . . . $enable_unixsock
diff --git a/src/Makefile.am b/src/Makefile.am
index 17eb6091..cbc92b27 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -422,6 +422,14 @@ swap_la_LDFLAGS += -lstatgrab
 endif
 endif
 
+if BUILD_MODULE_SYSLOG
+pkglib_LTLIBRARIES += syslog.la
+syslog_la_SOURCES = syslog.c
+syslog_la_LDFLAGS = -module -avoid-version
+collectd_LDADD += "-dlopen" syslog.la
+collectd_DEPENDENCIES += syslog.la
+endif
+
 if BUILD_MODULE_TAPE
 pkglib_LTLIBRARIES += tape.la
 tape_la_SOURCES = tape.c
diff --git a/src/syslog.c b/src/syslog.c
new file mode 100644
index 00000000..bcf873e9
--- /dev/null
+++ b/src/syslog.c
@@ -0,0 +1,97 @@
+/**
+ * collectd - src/syslog.c
+ * 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.
+ *
+ * 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.
+ *
+ * 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
+ *
+ * Authors:
+ *   Florian Forster <octo at verplant.org>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+
+#if HAVE_SYSLOG_H
+# include <syslog.h>
+#endif
+
+static int log_level = LOG_DEBUG;
+
+static const char *config_keys[] =
+{
+	"LogLevel"
+};
+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)
+	{
+		if ((strcasecmp (value, "emerg") == 0)
+				|| (strcasecmp (value, "alert") == 0)
+				|| (strcasecmp (value, "crit") == 0)
+				|| (strcasecmp (value, "err") == 0))
+			log_level = LOG_ERR;
+		else if (strcasecmp (value, "warning") == 0)
+			log_level = LOG_WARNING;
+		else if (strcasecmp (value, "notice") == 0)
+			log_level = LOG_NOTICE;
+		else if (strcasecmp (value, "info") == 0)
+			log_level = LOG_INFO;
+#if COLLECTD_DEBUG
+		else if (strcasecmp (value, "debug") == 0)
+			log_level = LOG_DEBUG;
+#endif
+		else
+			return (1);
+	}
+	else
+		return (-1);
+
+	return (0);
+} /* int sl_config */
+
+static int sl_init (void)
+{
+	openlog ("collectd", LOG_CONS | LOG_PID, LOG_DAEMON);
+
+	return (0);
+}
+
+static void sl_log (int sevetiry, const char *msg)
+{
+	if (sevetiry > log_level)
+		return;
+
+	syslog (sevetiry, "%s", msg);
+} /* void sl_log */
+
+static int sl_shutdown (void)
+{
+	closelog ();
+
+	return (0);
+}
+
+void module_register (void)
+{
+	plugin_register_config ("syslog", sl_config, config_keys, config_keys_num);
+	plugin_register_init ("syslog", sl_init);
+	plugin_register_log ("syslog", sl_log);
+	plugin_register_shutdown ("syslog", sl_shutdown);
+
+	return;
+} /* void module_register(void) */
-- 
2.30.2