Add SSL_get_client_certificate_types.

openssl/include/openssl/ssl.h

Index: openssl/include/openssl/ssl.h
diff --git a/openssl/include/openssl/ssl.h b/openssl/include/openssl/ssl.h
index fe92ccf0845b9c623b98b6d63c086b667ffa9aac..5faae95c1d5812c0d59970c229c78cb0c937ba6c 100644
--- a/openssl/include/openssl/ssl.h
+++ b/openssl/include/openssl/ssl.h
@@ -1989,6 +1989,9 @@ STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *s);
 int SSL_add_client_CA(SSL *ssl,X509 *x);
 int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x);
 
+void SSL_get_client_certificate_types(const SSL *s, const unsigned char **ctype,
+	size_t *ctype_num);
+
 void SSL_set_connect_state(SSL *s);
 void SSL_set_accept_state(SSL *s);