rpctls_server
static enum clnt_stat rpctls_server(SVCXPRT *xprt, uint32_t *flags,
stat = rpctls_server(xprt, &flags, &uid, &ngrps, &gidp);
static SSL *rpctls_server(SSL_CTX *ctx, int s,
ssl = rpctls_server(rpctls_ctx, s, &flags, &uid, &ngrps, gidp, &cert);