fix more race conditions

[openssl.git] / ssl / s3_meth.c

diff --git a/ssl/s3_meth.c b/ssl/s3_meth.c
index 01147023a205d41197c2a3302df35603e1b57a91..1fd7a96f87ba23ce91c57d14f428c4fb839f7122 100644 (file)
--- a/ssl/s3_meth.c
+++ b/ssl/s3_meth.c
@@ -60,12 +60,7 @@
 #include <openssl/objects.h>
 #include "ssl_locl.h"
 
-#ifndef NOPROTO
 static SSL_METHOD *ssl3_get_method(int ver);
-#else
-static SSL_METHOD *ssl3_get_method();
-#endif
-
 static SSL_METHOD *ssl3_get_method(int ver)
        {
        if (ver == SSL3_VERSION)
@@ -81,12 +76,19 @@ SSL_METHOD *SSLv3_method(void)
 
        if (init)
                {
-               memcpy((char *)&SSLv3_data,(char *)sslv3_base_method(),
-                       sizeof(SSL_METHOD));
-               SSLv3_data.ssl_connect=ssl3_connect;
-               SSLv3_data.ssl_accept=ssl3_accept;
-               SSLv3_data.get_ssl_method=ssl3_get_method;
-               init=0;
+               CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
+               
+               if (init)
+                       {
+                       memcpy((char *)&SSLv3_data,(char *)sslv3_base_method(),
+                               sizeof(SSL_METHOD));
+                       SSLv3_data.ssl_connect=ssl3_connect;
+                       SSLv3_data.ssl_accept=ssl3_accept;
+                       SSLv3_data.get_ssl_method=ssl3_get_method;
+                       init=0;
+                       }
+
+               CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
                }
        return(&SSLv3_data);
        }