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/*
* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
* This file was assembled from parts of the GNU C Library.
* Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
*
* 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 2 of the License, or
* (at your option) any later version.
*/
/*
* 2002-12-24 Nick Fedchik <nick@fedchik.org.ua>
* - initial uClibc port
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <netinet/ether.h>
#include <netinet/if_ether.h>
#define __FORCE_GLIBC
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;
}
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