1 /*	$NetBSD: ether_sprintf.c,v 1.7 2014/03/29 14:20:14 jakllsch Exp $	*/
2 
3 /*
4  * Copyright (c) 1992 Regents of the University of California.
5  * All rights reserved.
6  *
7  * This software was developed by the Computer Systems Engineering group
8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9  * contributed to Berkeley.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the University of
22  *	California, Lawrence Berkeley Laboratory and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  *    may be used to endorse or promote products derived from this software
25  *    without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  * @(#) Header: net.c,v 1.9 93/08/06 19:32:15 leres Exp  (LBL)
40  */
41 
42 #include <sys/param.h>
43 #include <sys/socket.h>
44 #ifdef _STANDALONE
45 #include <lib/libkern/libkern.h>
46 #else
47 #include <string.h>
48 #endif
49 
50 #include <net/if_ether.h>
51 
52 #include "stand.h"
53 #include "net.h"
54 
55 /*
56  * Convert Ethernet address to printable (loggable) representation.
57  */
58 char *
ether_sprintf(const u_char * ap)59 ether_sprintf(const u_char *ap)
60 {
61 	int i;
62 	static char etherbuf[3*ETHER_ADDR_LEN];
63 	char *cp = etherbuf;
64 
65 	for (i = 0; i < ETHER_ADDR_LEN; i++) {
66 		*cp++ = hexdigits[*ap >> 4];
67 		*cp++ = hexdigits[*ap++ & 0xf];
68 		*cp++ = ':';
69 	}
70 	*--cp = 0;
71 	return etherbuf;
72 }
73