1 /* $NetBSD: stdethers.c,v 1.6 1997/10/13 07:41:49 lukem 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mats O Jansson 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #ifndef lint 36 __RCSID("$NetBSD: stdethers.c,v 1.6 1997/10/13 07:41:49 lukem Exp $"); 37 #endif 38 39 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/socket.h> 42 #include <net/if.h> 43 #include <net/if_ether.h> 44 #include <netinet/in.h> 45 #include <ctype.h> 46 #include <err.h> 47 #include <limits.h> 48 #include <stdio.h> 49 #include <string.h> 50 51 #include "protos.h" 52 53 int main __P((int, char *[])); 54 void usage __P((void)); 55 56 extern char *__progname; /* from crt0.o */ 57 58 59 int 60 main(argc, argv) 61 int argc; 62 char *argv[]; 63 { 64 FILE *data_file; 65 char data_line[_POSIX2_LINE_MAX]; 66 int line_no = 0, len; 67 char *fname; 68 struct ether_addr eth_addr; 69 char hostname[MAXHOSTNAMELEN]; 70 71 if (argc > 2) 72 usage(); 73 74 if (argc == 2) { 75 fname = argv[1]; 76 data_file = fopen(fname, "r"); 77 if (data_file == NULL) 78 err(1, "%s", fname); 79 } else { 80 fname = "<stdin>"; 81 data_file = stdin; 82 } 83 84 while (read_line(data_file, data_line, sizeof(data_line))) { 85 line_no++; 86 len = strlen(data_line); 87 88 if (len <= 1 || data_line[0] == '#') 89 continue; 90 91 /* 92 * Check if we have the whole line 93 */ 94 if (data_line[len - 1] != '\n') { 95 warnx("%s line %d: line to long, skipping", 96 fname, line_no); 97 continue; 98 } else 99 data_line[len - 1] = '\0'; 100 101 if (ether_line(data_line, ð_addr, hostname) == 0) 102 printf("%s\t%s\n", ether_ntoa(ð_addr), hostname); 103 else 104 warnx("ignoring line %d: `%s'", line_no, data_line); 105 } 106 107 exit(0); 108 } 109 110 void 111 usage() 112 { 113 114 fprintf(stderr, "usage: %s [file]\n", __progname); 115 exit(1); 116 } 117