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-rw-r--r--test/ssl_old_test.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/ssl_old_test.c b/test/ssl_old_test.c
index 439d0ed8d0..8218ab1a90 100644
--- a/test/ssl_old_test.c
+++ b/test/ssl_old_test.c
@@ -332,6 +332,18 @@ static int verify_alpn(SSL *client, SSL *server)
OPENSSL_free(alpn_selected);
alpn_selected = NULL;
+ if (client_proto == NULL && client_proto_len != 0) {
+ BIO_printf(bio_stdout,
+ "Inconsistent SSL_get0_alpn_selected() for client!\n");
+ goto err;
+ }
+
+ if (server_proto == NULL && server_proto_len != 0) {
+ BIO_printf(bio_stdout,
+ "Inconsistent SSL_get0_alpn_selected() for server!\n");
+ goto err;
+ }
+
if (client_proto_len != server_proto_len) {
BIO_printf(bio_stdout, "ALPN selected protocols differ!\n");
goto err;