moved typedefs to beginning of files to solve some include problems

splitted authenticator to have a separate implementation for each auth_method_t
using va_copy to clone va_lists, should fix proplems on AMD64
some other cleanups

src/charon/bus/bus.h

@@ -23,14 +23,17 @@
 #ifndef BUS_H_
 #define BUS_H_
 
+typedef enum signal_t signal_t;
+typedef enum level_t level_t;
+typedef struct bus_listener_t bus_listener_t;
+typedef struct bus_t bus_t;
+
 #include <stdarg.h>
 
 #include <sa/ike_sa.h>
 #include <sa/child_sa.h>
 
 
-typedef enum signal_t signal_t;
-
 /**
  * @brief signals emitted by the daemon.
  *
@@ -123,8 +126,6 @@ enum signal_t {
  */
 extern enum_name_t *signal_names;
 
-typedef enum level_t level_t;
-
 /**
  * Signal levels used to control output verbosity.
  */
@@ -179,8 +180,6 @@ enum level_t {
 #define SIG_TYPE(sig) (sig > DBG_MAX ? SIG_ANY : sig)
 
 
-typedef struct bus_listener_t bus_listener_t;
-
 /**
  * @brief Interface for registering at the signal bus.
  *
@@ -213,9 +212,6 @@ struct bus_listener_t {
 					int thread, ike_sa_t *ike_sa, char* format, va_list args);
 };
 
-
-typedef struct bus_t bus_t;
-
 /**
  * @brief Signal bus which sends signals to registered listeners.
  *