1 /*
2  * eui64.c - EUI64 routines for IPv6CP.
3  *
4  * Copyright (c) 1999 Tommi Komulainen.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in
15  *    the documentation and/or other materials provided with the
16  *    distribution.
17  *
18  * 3. The name(s) of the authors of this software must not be used to
19  *    endorse or promote products derived from this software without
20  *    prior written permission.
21  *
22  * 4. Redistributions of any form whatsoever must retain the following
23  *    acknowledgment:
24  *    "This product includes software developed by Tommi Komulainen
25  *     <Tommi.Komulainen@iki.fi>".
26  *
27  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
28  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
29  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
30  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
31  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
32  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
33  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
34  *
35  * $Id: eui64.c,v 1.6 2002/12/04 23:03:32 paulus Exp $
36  */
37 
38 #include "netif/ppp/ppp_opts.h"
39 #if PPP_SUPPORT && PPP_IPV6_SUPPORT  /* don't build if not configured for use in lwipopts.h */
40 
41 #include "netif/ppp/ppp_impl.h"
42 #include "netif/ppp/eui64.h"
43 
44 /*
45  * eui64_ntoa - Make an ascii representation of an interface identifier
46  */
47 char *eui64_ntoa(eui64_t e) {
48     static char buf[20];
49 
50     sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x",
51 	     e.e8[0], e.e8[1], e.e8[2], e.e8[3],
52 	     e.e8[4], e.e8[5], e.e8[6], e.e8[7]);
53     return buf;
54 }
55 
56 #endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */
57