/*
 * dnsutl - utilities to make DNS easier to configure
 * Copyright (C) 1996, 1999, 2003, 2006, 2007 Peter Miller
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include <ac/string.h>

#include <srrf/private.h>


static string_ty *domain;


void
srrf_private_domain_set(string_ty *s)
{
    if (domain)
    {
        str_free(domain);
        domain = 0;
    }
    if (s)
        domain = str_copy(s);
}


string_ty *
srrf_private_domain_get(void)
{
    return domain;
}


int
srrf_private_domain_member(string_ty *name)
{
    if (!domain)
        return 0;
    if (name->str_length < domain->str_length)
        return 0;
    if (name->str_length == domain->str_length)
        return str_equal(name, domain);
    return
    (
        name->str_text[name->str_length - domain->str_length - 1] == '.'
    &&
        !memcmp
        (
            name->str_text + name->str_length - domain->str_length,
            domain->str_text,
            domain->str_length
        )
    );
}