Flush server side unauthenticated writes
When a server call SSL_write_early_data() to write to an unauthenticated
client the buffering BIO is still in place, so we should ensure we flush
the write.
@@ -2023,6 +2023,9 @@ int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
/* We are a server writing to an unauthenticated client */
s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING;
ret = SSL_write_ex(s, buf, num, written);
+ /* The buffering BIO is still in place */
+ if (ret)
+ (void)BIO_flush(s->wbio);
s->early_data_state = early_data_state;
return ret;
