SSL_CTRL_SET_TMP_ECDH
SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH, 0, (char *)(ecdh))
SSL_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH, 0, (char *)(ecdh))
case SSL_CTRL_SET_TMP_ECDH: {
case SSL_CTRL_SET_TMP_ECDH: {