From e94912f7be969dc7ef144eba3b1ed601407ff197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Kijewski?= <rene.kijewski@fu-berlin.de>
Date: Wed, 14 May 2014 14:35:35 +0200
Subject: [PATCH] sys/crypo: fix function declarations

In #1119 old-style function declarations are exterminated and forbidden.
I missed the functions in `sys/crypto` because they weren't used
throughout the tests/examples before #1124.
---
 sys/crypto/3des.c     | 2 +-
 sys/crypto/aes.c      | 2 +-
 sys/crypto/rc5.c      | 2 +-
 sys/crypto/skipjack.c | 2 +-
 sys/crypto/twofish.c  | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/sys/crypto/3des.c b/sys/crypto/3des.c
index 09426a0169..104495f996 100644
--- a/sys/crypto/3des.c
+++ b/sys/crypto/3des.c
@@ -350,7 +350,7 @@ int tripledes_decrypt(cipher_context_t *context, uint8_t *crypt, uint8_t *plain)
     return 1;
 }
 
-uint8_t tripledes_get_preferred_block_size()
+uint8_t tripledes_get_preferred_block_size(void)
 {
     return THREEDES_BLOCK_SIZE;
 }
diff --git a/sys/crypto/aes.c b/sys/crypto/aes.c
index ac65a0e3ce..38ff9800a7 100644
--- a/sys/crypto/aes.c
+++ b/sys/crypto/aes.c
@@ -1457,7 +1457,7 @@ int aes_decrypt(cipher_context_t *context, uint8_t *cipherBlock,
     return 1;
 }
 
-uint8_t aes_get_preferred_block_size()
+uint8_t aes_get_preferred_block_size(void)
 {
     return AES_BLOCK_SIZE;
 }
diff --git a/sys/crypto/rc5.c b/sys/crypto/rc5.c
index aa7df7bbdd..bec7c7a860 100644
--- a/sys/crypto/rc5.c
+++ b/sys/crypto/rc5.c
@@ -186,7 +186,7 @@ int rc5_setup_key(cipher_context_t *context, uint8_t *key, uint8_t keysize)
  *         cipher operates with multiple block sizes, this will pick one
  *         particular size (deterministically).
  */
-uint8_t rc5_get_preferred_block_size()
+uint8_t rc5_get_preferred_block_size(void)
 {
     return BLOCK_SIZE;
 }
diff --git a/sys/crypto/skipjack.c b/sys/crypto/skipjack.c
index 5bb57f50ea..5734de7661 100644
--- a/sys/crypto/skipjack.c
+++ b/sys/crypto/skipjack.c
@@ -345,7 +345,7 @@ int skipjack_setup_key(cipher_context_t *context, uint8_t *key, uint8_t keysize)
 }
 
 
-uint8_t skipjack_get_preferred_block_size()
+uint8_t skipjack_get_preferred_block_size(void)
 {
     return BLOCK_SIZE;
 }
diff --git a/sys/crypto/twofish.c b/sys/crypto/twofish.c
index d5120b8cb4..51b1bc0042 100644
--- a/sys/crypto/twofish.c
+++ b/sys/crypto/twofish.c
@@ -753,7 +753,7 @@ int twofish_decrypt(cipher_context_t *context, uint8_t *in, uint8_t *out)
     return 1;
 }
 
-uint8_t twofish_get_preferred_block_size()
+uint8_t twofish_get_preferred_block_size(void)
 {
     return TWOFISH_BLOCK_SIZE;
 }
-- 
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