X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=ssl%2Fs23_srvr.c;h=442c95aa9b545a08d6769269b7a73375865b8680;hb=9a48b07ee40b9d4f0f00f0a0822b1296fefb10eb;hp=8743b61cbb62392e8bf382d223027e39d3e0a5c6;hpb=7b63c0fa8c309bed7848b5ca5810ae9e2f2fb3c1;p=openssl.git

diff --git a/ssl/s23_srvr.c b/ssl/s23_srvr.c
index 8743b61cbb..442c95aa9b 100644
--- a/ssl/s23_srvr.c
+++ b/ssl/s23_srvr.c
@@ -139,11 +139,18 @@ SSL_METHOD *SSLv23_server_method(void)
 
 	if (init)
 		{
-		memcpy((char *)&SSLv23_server_data,
-			(char *)sslv23_base_method(),sizeof(SSL_METHOD));
-		SSLv23_server_data.ssl_accept=ssl23_accept;
-		SSLv23_server_data.get_ssl_method=ssl23_get_server_method;
-		init=0;
+		CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
+
+		if (init)
+			{
+			memcpy((char *)&SSLv23_server_data,
+				(char *)sslv23_base_method(),sizeof(SSL_METHOD));
+			SSLv23_server_data.ssl_accept=ssl23_accept;
+			SSLv23_server_data.get_ssl_method=ssl23_get_server_method;
+			init=0;
+			}
+
+		CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
 		}
 	return(&SSLv23_server_data);
 	}