int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
                         int md_nid, EVP_PBE_KEYGEN *keygen)
{
    EVP_PBE_CTL *pbe_tmp;

    if (pbe_algs == NULL) {
        pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
        if (pbe_algs == NULL)
            goto err;
    }

    if ((pbe_tmp = OPENSSL_malloc(sizeof(*pbe_tmp))) == NULL)
        goto err;

    pbe_tmp->pbe_type = pbe_type;
    pbe_tmp->pbe_nid = pbe_nid;
    pbe_tmp->cipher_nid = cipher_nid;
    pbe_tmp->md_nid = md_nid;
    pbe_tmp->keygen = keygen;

    if (!sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp)) {
        OPENSSL_free(pbe_tmp);
        goto err;
    }
    return 1;

 err:
    EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE, ERR_R_MALLOC_FAILURE);
    return 0;
}