Load cert from memory

static CURLcode SSLCTX_Callback(CURL *curl, void *ssl_ctx, void *user)
{
    X509_STORE *store;
    X509 *cert = NULL;
    BIO *bio;

    STACK_OF(X509_INFO) *inf;
    X509_INFO *itmp;
    int i;

    store = SSL_CTX_get_cert_store((SSL_CTX *)ssl_ctx);
    bio = BIO_new_mem_buf(MY_ACCEPTED_PEM, -1);
    inf = PEM_X509_INFO_read_bio(bio, NULL, NULL, "");
    BIO_free(bio);

    if (inf)
    {
        for (i = 0; i < sk_X509_INFO_num(inf); i++)
        {
            itmp = sk_X509_INFO_value(inf, i);
            if (itmp->x509)
                X509_STORE_add_cert(store, itmp->x509);
        }
    }

    sk_X509_INFO_pop_free(inf, X509_INFO_free);

    return CURLE_OK;
}