Adapted from upstream
commit 54ebe365b752f8969a67279d0d29552ab638e025
Author: Witold Filipczyk <witekfl@poczta.onet.pl>
Date:   Mon Mar 6 17:39:36 2017 +0100

    Compilation fix for OpenSSL-1.1

--- a/src/network/ssl/socket.c
+++ b/src/network/ssl/socket.c
@@ -67,7 +67,9 @@
 ssl_set_no_tls(struct socket *socket)
 {
 #ifdef CONFIG_OPENSSL
-	((ssl_t *) socket->ssl)->options |= SSL_OP_NO_TLSv1;
+#ifdef SSL_OP_NO_TLSv1
+	SSL_set_options((ssl_t *)socket->ssl, SSL_OP_NO_TLSv1);
+#endif
 #elif defined(CONFIG_GNUTLS)
 	{
 		/* GnuTLS does not support SSLv2 because it is "insecure".
@@ -145,7 +147,7 @@
 		}
 
 		if (client_cert) {
-			SSL_CTX *ctx = ((SSL *) socket->ssl)->ctx;
+			SSL_CTX *ctx = SSL_get_SSL_CTX((SSL *) socket->ssl);
 
 			SSL_CTX_use_certificate_chain_file(ctx, client_cert);
 			SSL_CTX_use_PrivateKey_file(ctx, client_cert,