xref: /third_party/lwip/src/netif/ppp/eui64.c (revision 195972f6)

/*
 * eui64.c - EUI64 routines for IPv6CP.
 *
 * Copyright (c) 1999 Tommi Komulainen.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The name(s) of the authors of this software must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission.
 *
 * 4. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by Tommi Komulainen
 *     <Tommi.Komulainen@iki.fi>".
 *
 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * $Id: eui64.c,v 1.6 2002/12/04 23:03:32 paulus Exp $
 */

#include "netif/ppp/ppp_opts.h"
#if PPP_SUPPORT && PPP_IPV6_SUPPORT  /* don't build if not configured for use in lwipopts.h */

#include "netif/ppp/ppp_impl.h"
#include "netif/ppp/eui64.h"

/*
 * eui64_ntoa - Make an ascii representation of an interface identifier
 */
char *eui64_ntoa(eui64_t e) {
    static char buf[20];

    sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x",
	     e.e8[0], e.e8[1], e.e8[2], e.e8[3],
	     e.e8[4], e.e8[5], e.e8[6], e.e8[7]);
    return buf;
}

#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */