1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1987-1990,2002 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <sys/types.h>
30*0Sstevel@tonic-gate #include <sys/ethernet.h>
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate #include <netdb.h>
33*0Sstevel@tonic-gate #include <stdio.h>
34*0Sstevel@tonic-gate #include <strings.h>
35*0Sstevel@tonic-gate
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate * Filter to convert addresses in /etc/ethers file to standard form
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate int
main(int argc,char ** argv)41*0Sstevel@tonic-gate main(int argc, char **argv)
42*0Sstevel@tonic-gate {
43*0Sstevel@tonic-gate /*
44*0Sstevel@tonic-gate * The hostname buffer must be at least as large as the line buffer
45*0Sstevel@tonic-gate * to avoid buffer overflows when ether_line(3SOCKET) is called.
46*0Sstevel@tonic-gate * We simply use the same size for both buffers to be safe.
47*0Sstevel@tonic-gate */
48*0Sstevel@tonic-gate char line[MAXHOSTNAMELEN + 256], *lf, hostname[sizeof (line)];
49*0Sstevel@tonic-gate struct ether_addr e;
50*0Sstevel@tonic-gate FILE *in;
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate if (argc > 1) {
53*0Sstevel@tonic-gate in = fopen(argv[1], "r");
54*0Sstevel@tonic-gate if (in == NULL) {
55*0Sstevel@tonic-gate fprintf(stderr,
56*0Sstevel@tonic-gate "%s: can't open %s\n", argv[0], argv[1]);
57*0Sstevel@tonic-gate return (1);
58*0Sstevel@tonic-gate }
59*0Sstevel@tonic-gate } else {
60*0Sstevel@tonic-gate in = stdin;
61*0Sstevel@tonic-gate }
62*0Sstevel@tonic-gate while (fgets(line, sizeof (line), in) != NULL) {
63*0Sstevel@tonic-gate lf = strchr(line, '\n');
64*0Sstevel@tonic-gate if (lf != NULL)
65*0Sstevel@tonic-gate *lf = '\0';
66*0Sstevel@tonic-gate if ((line[0] == '#') || (line[0] == '\0'))
67*0Sstevel@tonic-gate continue;
68*0Sstevel@tonic-gate if (ether_line(line, &e, hostname) == 0) {
69*0Sstevel@tonic-gate (void) fprintf(stdout, "%s\t%s\n", ether_ntoa(&e),
70*0Sstevel@tonic-gate hostname);
71*0Sstevel@tonic-gate } else {
72*0Sstevel@tonic-gate (void) fprintf(stderr,
73*0Sstevel@tonic-gate "%s: ignoring line: %s\n", argv[0], line);
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate return (0);
77*0Sstevel@tonic-gate }
78