X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Ft1_meth.c;h=fcc243f782643d5cdb3c015d90390a442562208f;hp=9bb36a7d1ca97cb8661480bd9d006f0d5b7c4054;hb=dc0ed30cfeb37d64fc2bd26887b19e0898a96bde;hpb=a9be3af5ad4836f7e50f0546311ca90c717b861e

diff --git a/ssl/t1_meth.c b/ssl/t1_meth.c
index 9bb36a7d1c..fcc243f782 100644
--- a/ssl/t1_meth.c
+++ b/ssl/t1_meth.c
@@ -76,13 +76,21 @@ SSL_METHOD *TLSv1_method(void)
 
 	if (init)
 		{
-		memcpy((char *)&TLSv1_data,(char *)tlsv1_base_method(),
-			sizeof(SSL_METHOD));
-		TLSv1_data.ssl_connect=ssl3_connect;
-		TLSv1_data.ssl_accept=ssl3_accept;
-		TLSv1_data.get_ssl_method=tls1_get_method;
-		init=0;
+		CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
+		
+		if (init)
+			{
+			memcpy((char *)&TLSv1_data,(char *)tlsv1_base_method(),
+				sizeof(SSL_METHOD));
+			TLSv1_data.ssl_connect=ssl3_connect;
+			TLSv1_data.ssl_accept=ssl3_accept;
+			TLSv1_data.get_ssl_method=tls1_get_method;
+			init=0;
+			}
+
+		CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
 		}
+	
 	return(&TLSv1_data);
 	}