SSL: guard use of SSL_OP_MSIE_SSLV2_RSA_PADDING.
This option had no effect since 0.9.7h / 0.9.8b and it was removed
in recent OpenSSL.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index f2419e4..fedb604 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -185,8 +185,10 @@
SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
+#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
/* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
+#endif
SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);