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/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.

*/

/*

 *  2002-12-24  Nick Fedchik <nick@fedchik.org.ua>

 *      - initial uClibc port

 */

#define __FORCE_GLIBC

#include <features.h>

#include <ctype.h>

#include <stdio.h>

#include <stdlib.h>

#include <netinet/ether.h>

#include <netinet/if_ether.h>

struct ether_addr *ether_aton(const char *asc)

{

        static struct ether_addr result;

        return ether_aton_r(asc, &result);

}

struct ether_addr *ether_aton_r(const char *asc, struct ether_addr *addr)

{

        size_t cnt;

        for (cnt = 0; cnt < 6; ++cnt) {

                unsigned int number;

                char ch;

                ch = _tolower(*asc++);

                if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))

                        return NULL;

                number = isdigit(ch) ? (ch - '0') : (ch - 'a' + 10);

                ch = _tolower(*asc);

                if ((cnt < 5 && ch != ':')

                        || (cnt == 5 && ch != '\0' && !isspace(ch))) {

                        ++asc;

                        if ((ch < '0' || ch > '9') && (ch < 'a' || ch > 'f'))

                                return NULL;

                        number <<= 4;

                        number += isdigit(ch) ? (ch - '0') : (ch - 'a' + 10);

                        ch = *asc;

                        if (cnt < 5 && ch != ':')

                                return NULL;

                }

                /* Store result.  */

                addr->ether_addr_octet[cnt] = (unsigned char) number;

                /* Skip ':'.  */

                ++asc;

        }

        return addr;

}

char *ether_ntoa(const struct ether_addr *addr)

{

        static char asc[18];

        return ether_ntoa_r(addr, asc);

}

char *ether_ntoa_r(const struct ether_addr *addr, char *buf)

{

        sprintf(buf, "%x:%x:%x:%x:%x:%x",

                        addr->ether_addr_octet[0], addr->ether_addr_octet[1],

                        addr->ether_addr_octet[2], addr->ether_addr_octet[3],

                        addr->ether_addr_octet[4], addr->ether_addr_octet[5]);

        return buf;

}