diff --git a/src/include/md4.h b/src/include/md4.h
index 96620c0e..dd81739e 100644
--- a/src/include/md4.h
+++ b/src/include/md4.h
@@ -1,5 +1,5 @@
 /* MD4.H - header file for MD4C.C
- * $OpenBSD: md4.h,v 1.2 1996/09/29 14:53:09 millert Exp $
+ * $OpenBSD: md4.h,v 1.3 1996/09/30 03:55:47 millert Exp $
  */
 
 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
@@ -25,18 +25,19 @@
 
 #ifndef _MD4_H_
 #define _MD4_H_
+
 /* MD4 context. */
 typedef struct MD4Context {
-  u_int32_t state[4];		/* state (ABCD) */
-  u_int32_t count[2];		/* number of bits, modulo 2^64 (lsb first) */
-  unsigned char buffer[64];	/* input buffer */
+    u_int32_t state[4];		/* state (ABCD) */
+    u_int32_t count[2];		/* number of bits, modulo 2^64 (lsb first) */
+    unsigned char buffer[64];	/* input buffer */
 } MD4_CTX;
 
-void   MD4Init(MD4_CTX *);
-void   MD4Update(MD4_CTX *, const unsigned char *, unsigned int);
-void   MD4Final(unsigned char [16], MD4_CTX *);
-char * MD4End(MD4_CTX *, char *);
-char * MD4File(char *, char *);
-char * MD4Data(const unsigned char *, unsigned int, char *);
+void   MD4Init __P((MD4_CTX *));
+void   MD4Update __P((MD4_CTX *, const unsigned char *, unsigned int));
+void   MD4Final __P((unsigned char [16], MD4_CTX *));
+char * MD4End __P((MD4_CTX *, char *));
+char * MD4File __P((char *, char *));
+char * MD4Data __P((const unsigned char *, unsigned int, char *));
 
 #endif /* _MD4_H_ */
diff --git a/src/include/md5.h b/src/include/md5.h
index 8948b31d..2f44e942 100644
--- a/src/include/md5.h
+++ b/src/include/md5.h
@@ -1,5 +1,5 @@
 /* MD5.H - header file for MD5C.C
- * $OpenBSD: md5.h,v 1.2 1996/09/29 14:53:10 millert Exp $
+ * $OpenBSD: md5.h,v 1.3 1996/09/30 03:55:48 millert Exp $
  */
 
 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
@@ -26,17 +26,19 @@ documentation and/or software.
 
 #ifndef _MD5_H_
 #define _MD5_H_
+
 /* MD5 context. */
 typedef struct MD5Context {
-  u_int32_t state[4];		/* state (ABCD) */
-  u_int32_t count[2];		/* number of bits, modulo 2^64 (lsb first) */
-  unsigned char buffer[64];	/* input buffer */
+    u_int32_t state[4];		/* state (ABCD) */
+    u_int32_t count[2];		/* number of bits, modulo 2^64 (lsb first) */
+    unsigned char buffer[64];	/* input buffer */
 } MD5_CTX;
 
-void   MD5Init (MD5_CTX *);
-void   MD5Update (MD5_CTX *, const unsigned char *, unsigned int);
-void   MD5Final (unsigned char [16], MD5_CTX *);
-char * MD5End(MD5_CTX *, char *);
-char * MD5File(char *, char *);
-char * MD5Data(const unsigned char *, unsigned int, char *);
+void   MD5Init __P((MD5_CTX *));
+void   MD5Update __P((MD5_CTX *, const unsigned char *, unsigned int));
+void   MD5Final __P((unsigned char [16], MD5_CTX *));
+char * MD5End __P((MD5_CTX *, char *));
+char * MD5File __P((char *, char *));
+char * MD5Data __P((const unsigned char *, unsigned int, char *));
+
 #endif /* _MD5_H_ */
diff --git a/src/include/sha1.h b/src/include/sha1.h
index 2f3b9b3a..8f3988a9 100644
--- a/src/include/sha1.h
+++ b/src/include/sha1.h
@@ -10,11 +10,6 @@
 #ifndef _SHA1_H
 #define _SHA1_H
 
-/* Useful defines/typedefs */
-
-typedef unsigned char   BYTE;
-typedef u_int32_t	LONG;
-
 /* The SHA1 block size and message digest sizes, in bytes */
 
 #define SHA1_BLOCKSIZE   64
@@ -23,10 +18,10 @@ typedef u_int32_t	LONG;
 /* The structure for storing SHA1 info */
 
 typedef struct {
-	       LONG digest[ 5 ];            /* Message digest */
-	       LONG countLo, countHi;       /* 64-bit bit count */
-	       LONG data[ 16 ];             /* SHA1 data buffer */
-	       } SHA1_INFO;
+	u_int32_t digest[ 5 ];		/* Message digest */
+	u_int32_t countLo, countHi;	/* 64-bit bit count */
+	u_int32_t data[ 16 ];		/* SHA1 data buffer */
+} SHA1_INFO;
 
 /* The next def turns on the change to the algorithm introduced by NIST at
  * the behest of the NSA.  It supposedly corrects a weakness in the original
@@ -53,9 +48,9 @@ typedef struct {
  */
 #define NEW_SHA1
 
-void sha1Init (SHA1_INFO *);
-void sha1Transform (SHA1_INFO *);
-void sha1Final (SHA1_INFO *);
-void sha1Update (SHA1_INFO *, BYTE *, int);
+void sha1Init __P((SHA1_INFO *));
+void sha1Transform __P((SHA1_INFO *));
+void sha1Final __P((SHA1_INFO *));
+void sha1Update __P((SHA1_INFO *, unsigned char *, int));
 
 #endif /* _SHA1_H */