SSL_SESSION_set1_hostname
__owur int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname);
if (!TEST_true(SSL_SESSION_set1_hostname(sess, "goodhost"))
|| !TEST_true(SSL_SESSION_set1_hostname(serverpsk, "badhost")))
if (!TEST_true(SSL_SESSION_set1_hostname(sess, "goodhost"))