1/* 2 * Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC") 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 * PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17/* $Id: arpaname.c,v 1.4 2009/10/27 03:05:33 marka Exp $ */ 18 19#include "config.h" 20 21#include <isc/net.h> 22 23#include <stdio.h> 24 25#define UNUSED(x) (void)(x) 26 27int 28main(int argc, char *argv[]) { 29 unsigned char buf[16]; 30 int i; 31 32 UNUSED(argc); 33 34 while (argv[1]) { 35 if (inet_pton(AF_INET6, argv[1], buf) == 1) { 36 for (i = 15; i >= 0; i--) 37 fprintf(stdout, "%X.%X.", buf[i] & 0xf, 38 (buf[i] >> 4) & 0xf); 39 fprintf(stdout, "IP6.ARPA\n"); 40 argv++; 41 continue; 42 } 43 if (inet_pton(AF_INET, argv[1], buf) == 1) { 44 fprintf(stdout, "%u.%u.%u.%u.IN-ADDR.ARPA\n", 45 buf[3], buf[2], buf[1], buf[0]); 46 argv++; 47 continue; 48 } 49 return (1); 50 } 51 fflush(stdout); 52 return(ferror(stdout)); 53} 54