/*
 *      dnsutl - utilities to make DNS easier to configure
 *      Copyright (C) 1999, 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 <mac.h>
#include <map.h>
#include <map_ether.h>
#include <mem.h>
#include <strlist.h>


map_ether_t *
map_ether_new(void)
{
    map_ether_t     *result;

    result = mem_alloc(sizeof(map_ether_t));
    result->address = 0;
    result->name = 0;
    return result;
}


void
map_ether_delete(map_ether_t *mep)
{
    if (mep->address)
    {
        str_free(mep->address);
        mep->address = 0;
    }
    if (mep->name)
    {
        str_free(mep->name);
        mep->name = 0;
    }
    mem_free(mep);
}


void
map_ether_open(const char *fn)
{
    map_open(fn);
}


void
map_ether_close(void)
{
    map_close();
}


map_ether_t *
map_ether_read(void)
{
    strlist_ty      sl;
    string_ty       *addr;
    map_ether_t     *result;

    for (;;)
    {
        if (!map_read(&sl))
            return 0;
        if (sl.nstrings != 2)
        {
            map_error("ethers entries require exactly 2 strings");
            strlist_free(&sl);
            continue;
        }
        break;
    }

    addr = mac_cannonicalize(sl.string[0]);
    if (!addr)
    {
        map_error
        (
            "the string \"%s\" is not a legal Ethernet address",
            sl.string[0]->str_text
        );
        addr = str_copy(sl.string[0]);
    }

    result = map_ether_new();
    result->name = str_copy(sl.string[1]);
    result->address = addr;
    strlist_free(&sl);
    return result;
}