SSL_CTRL_SET_MAX_SEND_FRAGMENT
SSL_CTX_ctrl(ctx, SSL_CTRL_SET_MAX_SEND_FRAGMENT, m, NULL)
SSL_ctrl(ssl, SSL_CTRL_SET_MAX_SEND_FRAGMENT, m, NULL)
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
case SSL_CTRL_SET_MAX_SEND_FRAGMENT: