Rewritten the eurephia_log() to support syslog logging as well

Also simplified the initialisation of the logging module.  By calling
the eurephia_log_init(eurephiaCTX *, char *dest, int loglevel) function,
a log context will be setup inside the eurephiaCTX.

To close the log file, eurephia_log_close(eurephiaCTX *) must be called.

The destination string to eurephia_log_init() can be:

	- stdout:
	  Log everything to stdout
	- stderr:
	  Log everything to stderr
	- none:
	  Do no logging at all
	- syslog:<facility>
	  Log via syslog.  <facility> can be: user, local[0-7],
	  daemon or authpriv.
	- Filename
	  All logging goes to the given filename.  If the filename
	  string is not recognised by any of the reserved words above,
	  it will be handled as a filename.

1 files changed, 4 insertions, 8 deletions

diff --git a/common/eurephia_log.h b/common/eurephia_log.h
index 97e58d2..cb83f61 100644
--- a/common/eurephia_log.h
+++ b/common/eurephia_log.h
@@ -31,16 +31,9 @@
 #ifndef   	EUREPHIA_LOG_H_
 #define   	EUREPHIA_LOG_H_
 
+#include <eurephia_log_struct.h>
 #include <eurephia_context.h>
 
-#define LOG_INFO  1		/**< Informational messages. Log level should be < 5 */
-#define LOG_DEBUG 2		/**< Messages intended when debugging. Only for log level > 10 */
-#define LOG_WARNING 3		/**< Input data or processing revealed unexpected data. Log level never > 2*/
-#define LOG_ERROR 4		/**< API errors but not sever, program can continue to run */
-#define LOG_CRITICAL 5		/**< Operation failed and might have been aborted.  Log level always 0 */
-#define LOG_FATAL 6             /**< Operation failed and cannot continue. Log level always < 2 */
-#define LOG_PANIC 7		/**< Action failed an program could not continue to run. Log level always 0 */
-
 #ifdef ENABLE_DEBUG
 #warning ######   DEBUG LOGGING IS ENABLED - THIS COULD BE A SECURITY ISSUE   ######
 /**
@@ -60,6 +53,9 @@
 #warning ##                                                                                      ##
 #warning ##########################################################################################
 #endif
+
+int eurephia_log_init(eurephiaCTX *ctx, const char *dest, int loglvl);
+void eurephia_log_close(eurephiaCTX *ctx);
 void eurephia_log(eurephiaCTX *ctx, int logdst, int loglvl, const char *fmt, ... );
 
 #endif 	    /* !EUREPHIA_LOG_H_ */