test: set SNI for the SSL unit tests

MesaLink requires an SNI set in client session. This commit sets the SNI
in the test cases. Note OpenSSL is not affected by this change.

test/brpc_ssl_unittest.cpp

@@ -109,6 +109,7 @@ TEST_F(SSLTest, sanity) {
         brpc::Channel channel;
         brpc::ChannelOptions coptions;
         coptions.mutable_ssl_options();
+        coptions.mutable_ssl_options()->sni_name = "localhost";
         ASSERT_EQ(0, channel.Init("localhost", port, &coptions));
 
         brpc::Controller cntl;
@@ -125,6 +126,7 @@ TEST_F(SSLTest, sanity) {
         brpc::Channel channel;
         brpc::ChannelOptions coptions;
         coptions.mutable_ssl_options();
+        coptions.mutable_ssl_options()->sni_name = "localhost";
         ASSERT_EQ(0, channel.Init("127.0.0.1", port, &coptions));
         for (int i = 0; i < NUM; ++i) {
             google::protobuf::Closure* thrd_func =
@@ -141,6 +143,7 @@ TEST_F(SSLTest, sanity) {
         brpc::ChannelOptions coptions;
         coptions.protocol = "http";
         coptions.mutable_ssl_options();
+        coptions.mutable_ssl_options()->sni_name = "localhost";
         ASSERT_EQ(0, channel.Init("127.0.0.1", port, &coptions));
         for (int i = 0; i < NUM; ++i) {
             google::protobuf::Closure* thrd_func =
@@ -322,6 +325,7 @@ TEST_F(SSLTest, ssl_perf) {
             brpc::CreateServerSSLContext("cert1.crt", "cert1.key",
                                          brpc::SSLOptions(), NULL);
     SSL* cli_ssl = brpc::CreateSSLSession(cli_ctx, 0, clifd, false);
+    SSL_set_tlsext_host_name(cli_ssl, "localhost");
     SSL* serv_ssl = brpc::CreateSSLSession(serv_ctx, 0, servfd, true);
     pthread_t cpid;
     pthread_t spid;