do_fp_oneshot_sign
static int do_fp_oneshot_sign(BIO *out, EVP_MD_CTX *ctx, BIO *in, int sep, int binout,
ret = do_fp_oneshot_sign(out, signctx, in, separator, out_bin,
if (do_fp_oneshot_sign(out, signctx, in, separator, out_bin,