lwip_eui64.c

00001 /*
00002  * eui64.c - EUI64 routines for IPv6CP.
00003  *
00004  * Copyright (c) 1999 Tommi Komulainen.  All rights reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions
00008  * are met:
00009  *
00010  * 1. Redistributions of source code must retain the above copyright
00011  *    notice, this list of conditions and the following disclaimer.
00012  *
00013  * 2. Redistributions in binary form must reproduce the above copyright
00014  *    notice, this list of conditions and the following disclaimer in
00015  *    the documentation and/or other materials provided with the
00016  *    distribution.
00017  *
00018  * 3. The name(s) of the authors of this software must not be used to
00019  *    endorse or promote products derived from this software without
00020  *    prior written permission.
00021  *
00022  * 4. Redistributions of any form whatsoever must retain the following
00023  *    acknowledgment:
00024  *    "This product includes software developed by Tommi Komulainen
00025  *     <Tommi.Komulainen@iki.fi>".
00026  *
00027  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
00028  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
00029  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
00030  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
00031  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
00032  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
00033  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
00034  *
00035  * $Id: eui64.c,v 1.6 2002/12/04 23:03:32 paulus Exp $
00036  */
00037 
00038 #include "netif/ppp/ppp_opts.h"
00039 #if PPP_SUPPORT && PPP_IPV6_SUPPORT  /* don't build if not configured for use in lwipopts.h */
00040 
00041 #include "netif/ppp/ppp_impl.h"
00042 #include "netif/ppp/eui64.h"
00043 
00044 /*
00045  * eui64_ntoa - Make an ascii representation of an interface identifier
00046  */
00047 char *eui64_ntoa(eui64_t e) {
00048     static char buf[20];
00049 
00050     sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x",
00051          e.e8[0], e.e8[1], e.e8[2], e.e8[3], 
00052          e.e8[4], e.e8[5], e.e8[6], e.e8[7]);
00053     return buf;
00054 }
00055 
00056 #endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */