Get rid of casts.

crypto/md32_common.h

diff --git a/crypto/md32_common.h b/crypto/md32_common.h
index dc464ea..3c086a8 100644
--- a/crypto/md32_common.h
+++ b/crypto/md32_common.h
@@ -468,7 +468,7 @@
 		 */
 		if ((((unsigned long)data)%4) == 0)
 			{
-			HASH_BLOCK_DATA_ORDER_ALIGNED (c,(HASH_LONG *)data,sw);
+			HASH_BLOCK_DATA_ORDER_ALIGNED (c,data,sw);
 			sw*=HASH_CBLOCK;
 			data+=sw;
 			len-=sw;
@@ -510,11 +510,11 @@
 	}
 
 
-void HASH_TRANSFORM (HASH_CTX *c, unsigned char *data)
+void HASH_TRANSFORM (HASH_CTX *c, const unsigned char *data)
 	{
 #if defined(HASH_BLOCK_DATA_ORDER_ALIGNED) && HASH_BLOCK_DATA_ORDER_ALIGNED!=1
 	if ((((unsigned long)data)%4) == 0)
-		HASH_BLOCK_DATA_ORDER_ALIGNED (c,(HASH_LONG *)data,1);
+		HASH_BLOCK_DATA_ORDER_ALIGNED (c,data,1);
 	else
 #if !defined(HASH_BLOCK_DATA_ORDER)
 		{

crypto/md5/md5.h

diff --git a/crypto/md5/md5.h b/crypto/md5/md5.h
index 148fb96..bdab6d4 100644
--- a/crypto/md5/md5.h
+++ b/crypto/md5/md5.h
@@ -106,7 +106,7 @@
 void MD5_Update(MD5_CTX *c, const unsigned char *data, unsigned long len);
 void MD5_Final(unsigned char *md, MD5_CTX *c);
 unsigned char *MD5(unsigned char *d, unsigned long n, unsigned char *md);
-void MD5_Transform(MD5_CTX *c, unsigned char *b);
+void MD5_Transform(MD5_CTX *c, const unsigned char *b);
 #ifdef  __cplusplus
 }
 #endif

crypto/md5/md5_dgst.c

diff --git a/crypto/md5/md5_dgst.c b/crypto/md5/md5_dgst.c
index 830e04d..bab309b 100644
--- a/crypto/md5/md5_dgst.c
+++ b/crypto/md5/md5_dgst.c
@@ -82,8 +82,9 @@
 	}
 
 #ifndef md5_block_host_order
-void md5_block_host_order (MD5_CTX *c, const MD5_LONG *X, int num)
+void md5_block_host_order (MD5_CTX *c, const void *data, int num)
 	{
+	const MD5_LONG *X=data;
 	register unsigned long A,B,C,D;
 	/*
 	 * In case you wonder why A-D are declared as long and not
@@ -185,7 +186,7 @@
 #endif
 
 #ifndef md5_block_data_order
-void md5_block_data_order (MD5_CTX *c, const unsigned char *data, int num)
+void md5_block_data_order (MD5_CTX *c, const void *data, int num)
 	{
 	register unsigned long A,B,C,D,l;
 	/*

crypto/md5/md5_locl.h

diff --git a/crypto/md5/md5_locl.h b/crypto/md5/md5_locl.h
index 1647683..510e573 100644
--- a/crypto/md5/md5_locl.h
+++ b/crypto/md5/md5_locl.h
@@ -73,8 +73,8 @@
 # endif
 #endif
 
-void md5_block_host_order (MD5_CTX *c, const MD5_LONG *p,int num);
-void md5_block_data_order (MD5_CTX *c, const unsigned char *p,int num);
+void md5_block_host_order (MD5_CTX *c, const void *p,int num);
+void md5_block_data_order (MD5_CTX *c, const void *p,int num);
 
 #if defined(__i386)
 /*
@@ -98,7 +98,7 @@
  *
  *				<appro@fy.chalmers.se>
  */
-#define md5_block_data_order(c,p,num) md5_block_host_order((c),(const MD5_LONG *)(p),(num))
+#define md5_block_data_order md5_block_host_order
 #endif
 
 #define DATA_ORDER_IS_LITTLE_ENDIAN