examples/client: Enable ALPN

robaho · Oct 17, 2021 · 15a8d91 · 15a8d91
1 parent 65d3c90
commit 15a8d91
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/examples/client.c b/examples/client.c
@@ -380,6 +380,10 @@ static void init_ssl_ctx(SSL_CTX *ssl_ctx) {
 #ifndef OPENSSL_NO_NEXTPROTONEG
   SSL_CTX_set_next_proto_select_cb(ssl_ctx, select_next_proto_cb, NULL);
 #endif /* !OPENSSL_NO_NEXTPROTONEG */
+
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+  SSL_CTX_set_alpn_protos(ssl_ctx, (const unsigned char *)"\x02h2", 3);
+#endif /* OPENSSL_VERSION_NUMBER >= 0x10002000L */
 }
 
 static void ssl_handshake(SSL *ssl, int fd) {