syslog plugin: Added a `syslog' plugin which logs to syslog, using the new `log'...

diff --git a/configure.in b/configure.in
index 48029d0..39c7e98 100644 (file)
--- 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 17eb609..cbc92b2 100644 (file)
--- 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 (file)
index 0000000..bcf873e
--- /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) */