1/*	$NetBSD: stdethers.c,v 1.18 2009/10/20 00:51:14 snj Exp $	*/
2
3/*
4 * Copyright (c) 1995 Mats O Jansson <moj@stacken.kth.se>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30#ifndef lint
31__RCSID("$NetBSD: stdethers.c,v 1.18 2009/10/20 00:51:14 snj Exp $");
32#endif
33
34#include <sys/types.h>
35#include <sys/param.h>
36#include <sys/socket.h>
37#include <net/if.h>
38#include <net/if_ether.h>
39#include <netinet/in.h>
40#include <err.h>
41#include <limits.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45
46#include "protos.h"
47
48__dead static void	usage(void);
49
50
51int
52main(int argc, char *argv[])
53{
54	struct ether_addr eth_addr;
55	FILE	*data_file;
56	size_t	 line_no;
57	size_t	 len;
58	const char *fname;
59	char	*p;
60	char	 hostname[MAXHOSTNAMELEN + 1];
61
62	if (argc > 2)
63		usage();
64
65	if (argc == 2) {
66		fname = argv[1];
67		data_file = fopen(fname, "r");
68		if (data_file == NULL)
69			err(1, "%s", fname);
70	} else {
71		fname = "<stdin>";
72		data_file = stdin;
73	}
74
75	line_no = 0;
76	for (;
77	    (p = fparseln(data_file, &len, &line_no, NULL, FPARSELN_UNESCALL));
78	    free(p)) {
79		if (len == 0)
80			continue;
81
82		if (ether_line(p, &eth_addr, hostname) == 0)
83			printf("%s\t%s\n", ether_ntoa(&eth_addr), hostname);
84		else
85			warnx("ignoring line %lu: `%s'",
86			    (unsigned long)line_no, p);
87	}
88
89	return 0;
90}
91
92static void
93usage(void)
94{
95
96	fprintf(stderr, "usage: %s [file]\n", getprogname());
97	exit(1);
98}
99