tlsext_client_parse
if (!tlsext_client_parse(s, SSL_TLSEXT_MSG_SH, &cbs, &al)) {
int tlsext_client_parse(SSL *s, uint16_t msg_type, CBS *cbs, int *alert);
if (!tlsext_client_parse(s, tlsext_msg_type, cbs, &alert_desc)) {
if (!tlsext_client_parse(ctx->ssl, SSL_TLSEXT_MSG_EE, cbs, &alert_desc)) {
if (!tlsext_client_parse(ctx->ssl, SSL_TLSEXT_MSG_CR, cbs, &alert_desc)) {
if (!tlsext_client_parse(ctx->ssl, SSL_TLSEXT_MSG_CT,
if (!tlsext_client_parse(ctx->ssl, SSL_TLSEXT_MSG_NST, cbs, &alert))
CHECK(s_val == tlsext_client_parse(s, SSL_TLSEXT_MSG_SH, &cbs, &al)); \