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/libstrongswan/crypto/hashers/hasher.h

@@ -24,15 +24,14 @@
 #ifndef HASHER_H_
 #define HASHER_H_
 
+typedef enum hash_algorithm_t hash_algorithm_t;
+typedef struct hasher_t hasher_t;
 
 #include <types.h>
 
-
-typedef enum hash_algorithm_t hash_algorithm_t;
-
 /**
  * @brief Algorithms to use for hashing.
- * 
+ *
  * Currently only the following algorithms are implemented:
  * - HASH_MD5
  * - HASH_SHA1
@@ -70,8 +69,6 @@ enum hash_algorithm_t {
 extern enum_name_t *hash_algorithm_names;
 
 
-typedef struct hasher_t hasher_t;
-
 /**
  * @brief Generic interface for all hash functions.
  * 

src/libstrongswan/crypto/hashers/md5_hasher.h

@@ -24,21 +24,20 @@
 #ifndef MD5_HASHER_H_
 #define MD5_HASHER_H_
 
-#include <crypto/hashers/hasher.h>
-
-
 typedef struct md5_hasher_t md5_hasher_t;
 
+#include <crypto/hashers/hasher.h>
+
 /**
  * @brief Implementation of hasher_t interface using the
  * MD5 algorithm.
- * 
+ *
  * @b Constructors:
  * - hasher_create() using HASH_MD5 as algorithm
  * - md5_hasher_create()
- * 
+ *
  * @see hasher_t
- * 
+ *
  * @ingroup hashers
  */
 struct md5_hasher_t {

src/libstrongswan/crypto/hashers/sha1_hasher.h

@@ -24,11 +24,10 @@
 #ifndef SHA1_HASHER_H_
 #define SHA1_HASHER_H_
 
-#include <crypto/hashers/hasher.h>
-
-
 typedef struct sha1_hasher_t sha1_hasher_t;
 
+#include <crypto/hashers/hasher.h>
+
 /**
  * @brief Implementation of hasher_t interface using the
  * SHA1 algorithm.

src/libstrongswan/crypto/hashers/sha2_hasher.h

@@ -23,21 +23,20 @@
 #ifndef SHA2_HASHER_H_
 #define SHA2_HASHER_H_
 
-#include <crypto/hashers/hasher.h>
-
-
 typedef struct sha2_hasher_t sha2_hasher_t;
 
+#include <crypto/hashers/hasher.h>
+
 /**
  * @brief Implementation of hasher_t interface using the SHA2 algorithms.
- * 
+ *
  * SHA2 is an other name for the SHA-256, SHA-384 and SHA-512 variants of
  * the SHA hash algorithm.
- * 
+ *
  * @b Constructors:
  * - hasher_create() using HASH_SHA256, HASH_SHA384 or HASH_SHA512 as algorithm
  * - sha2_hasher_create()
- * 
+ *
  * @see hasher_t
  * 
  * @ingroup hashers