Use prototypes.

diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c
index d1ebf06..1ce1c16 100644
--- a/ssl/s3_enc.c
+++ b/ssl/s3_enc.c

@@ -412,7 +412,7 @@
 	}
 
 int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2,
-	     unsigned char *sender, int len, unsigned char *p)
+	     const char *sender, int len, unsigned char *p)
 	{
 	int ret;
 

diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index 10d080d..88ff03b 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c

@@ -72,12 +72,13 @@
 static int ssl_ctx_meth_num=0;
 
 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
+	/* evil casts, but these functions are only called if there's a libraryr bug */
+	(int (*)(SSL *,int))ssl_undefined_function,
+	(int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
 	ssl_undefined_function,
-	ssl_undefined_function,
-	ssl_undefined_function,
-	ssl_undefined_function,
-	ssl_undefined_function,
-	ssl_undefined_function,
+	(int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
+	(int (*)(SSL*, int))ssl_undefined_function,
+	(int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
 	};
 
 int SSL_clear(SSL *s)

diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index e1ac715..fbf9105 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h

@@ -322,19 +322,19 @@
  * an opaque strucute :-) */
 typedef struct ssl3_enc_method
 	{
-	int (*enc)();
-	int (*mac)();
-	int (*setup_key_block)();
-	int (*generate_master_secret)();
-	int (*change_cipher_state)();
-	int (*final_finish_mac)();
+	int (*enc)(SSL *, int);
+	int (*mac)(SSL *, unsigned char *, int);
+	int (*setup_key_block)(SSL *);
+	int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
+	int (*change_cipher_state)(SSL *, int);
+	int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *);
 	int finish_mac_length;
-	int (*cert_verify_mac)();
+	int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *);
 	const char *client_finished_label;
 	int client_finished_label_len;
 	const char *server_finished_label;
 	int server_finished_label_len;
-	int (*alert_value)();
+	int (*alert_value)(int);
 	} SSL3_ENC_METHOD;
 
 /* Used for holding the relevant compression methods loaded into SSL_CTX */
@@ -443,7 +443,7 @@
 int ssl3_part_read(SSL *s, int i);
 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
 int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1,EVP_MD_CTX *ctx2,
-	unsigned char *sender, int slen,unsigned char *p);
+	const char *sender, int slen,unsigned char *p);
 int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
 int ssl3_enc(SSL *s, int send_data);
@@ -483,7 +483,7 @@
 int tls1_setup_key_block(SSL *s);
 int tls1_enc(SSL *s, int snd);
 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
-	unsigned char *str, int slen, unsigned char *p);
+	const char *str, int slen, unsigned char *p);
 int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
 int tls1_generate_master_secret(SSL *s, unsigned char *out,

diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 914b743..2434642 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c

@@ -494,7 +494,7 @@
 	}
 
 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
-	     unsigned char *str, int slen, unsigned char *out)
+	     const char *str, int slen, unsigned char *out)
 	{
 	unsigned int i;
 	EVP_MD_CTX ctx;