ctx->alert is not a boolean, so compare it explicitly against 0.

diff --git a/lib/libssl/tls13_handshake.c b/lib/libssl/tls13_handshake.c
index 578cea3..4e4a910 100644 (file)
--- a/lib/libssl/tls13_handshake.c
+++ b/lib/libssl/tls13_handshake.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: tls13_handshake.c,v 1.66 2021/06/28 15:35:14 tb Exp $ */
+/*     $OpenBSD: tls13_handshake.c,v 1.67 2021/06/28 18:42:17 tb Exp $ */
 /*
  * Copyright (c) 2018-2019 Theo Buehler <tb@openbsd.org>
  * Copyright (c) 2019 Joel Sing <jsing@openbsd.org>
@@ -383,7 +383,7 @@ tls13_handshake_perform(struct tls13_ctx *ctx)
                    (action->sender == ctx->mode) ? "sending" : "receiving",
                    tls13_handshake_message_name(action->handshake_type));
 
-               if (ctx->alert)
+               if (ctx->alert != 0)
                        return tls13_send_alert(ctx->rl, ctx->alert);
 
                if (action->sender == ctx->mode)
@@ -391,7 +391,7 @@ tls13_handshake_perform(struct tls13_ctx *ctx)
                else
                        ret = tls13_handshake_recv_action(ctx, action);
 
-               if (ctx->alert)
+               if (ctx->alert != 0)
                        return tls13_send_alert(ctx->rl, ctx->alert);
 
                if (ret <= 0) {