HMAC_size
ret = krb5_data_alloc(rep->hash, HMAC_size(ctx));
if (sizeof(digest) != HMAC_size(ctx))
OSSL_DEPRECATEDIN_3_0 size_t HMAC_size(const HMAC_CTX *e);
return HMAC_size(macctx->ctx);
return HMAC_size(ctx->old_ctx);