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-rw-r--r--lib/libssl/tls13_lib.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/libssl/tls13_lib.c b/lib/libssl/tls13_lib.c
index 7232b6dea00..174da2f9c3c 100644
--- a/lib/libssl/tls13_lib.c
+++ b/lib/libssl/tls13_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls13_lib.c,v 1.49 2020/05/21 19:43:40 tb Exp $ */
+/* $OpenBSD: tls13_lib.c,v 1.50 2020/05/22 02:37:27 beck Exp $ */
/*
* Copyright (c) 2018, 2019 Joel Sing <jsing@openbsd.org>
* Copyright (c) 2019 Bob Beck <beck@openbsd.org>
@@ -430,8 +430,14 @@ tls13_cert_add(struct tls13_ctx *ctx, CBB *cbb, X509 *cert,
return 0;
if (i2d_X509(cert, &data) != cert_len)
return 0;
- if (!build_extensions(ctx->ssl, cbb, SSL_TLSEXT_MSG_CT))
- return 0;
+ if (build_extensions != NULL) {
+ if (!build_extensions(ctx->ssl, cbb, SSL_TLSEXT_MSG_CT))
+ return 0;
+ } else {
+ CBB cert_exts;
+ if (!CBB_add_u16_length_prefixed(cbb, &cert_exts))
+ return 0;
+ }
if (!CBB_flush(cbb))
return 0;