Tidy up CRYPTO_EX_DATA structures.

ssl/ssl.h

diff --git a/ssl/ssl.h b/ssl/ssl.h
index 5f99b33..55f3ab4 100644
--- a/ssl/ssl.h
+++ b/ssl/ssl.h
@@ -1119,18 +1119,18 @@
 
 int SSL_set_ex_data(SSL *ssl,int idx,void *data);
 void *SSL_get_ex_data(SSL *ssl,int idx);
-int SSL_get_ex_new_index(long argl, char *argp, int (*new_func)(),
-	int (*dup_func)(), void (*free_func)());
+int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
 
 int SSL_SESSION_set_ex_data(SSL_SESSION *ss,int idx,void *data);
 void *SSL_SESSION_get_ex_data(SSL_SESSION *ss,int idx);
-int SSL_SESSION_get_ex_new_index(long argl, char *argp, int (*new_func)(),
-	int (*dup_func)(), void (*free_func)());
+int SSL_SESSION_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
 
 int SSL_CTX_set_ex_data(SSL_CTX *ssl,int idx,void *data);
 void *SSL_CTX_get_ex_data(SSL_CTX *ssl,int idx);
-int SSL_CTX_get_ex_new_index(long argl, char *argp, int (*new_func)(),
-	int (*dup_func)(), void (*free_func)());
+int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
 
 int SSL_get_ex_data_X509_STORE_CTX_idx(void );