blob: 0dbe9924573b34db09fd31e751d7720f0d304602 [file] [log] [blame]
itojun7ddb7931999-10-30 07:53:37 +00001/*
2 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the Kungliga Tekniska
20 * Högskolan and its contributors.
21 *
22 * 4. Neither the name of the Institute nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
fenner34ff77f2000-01-09 21:34:14 +000039/* $Id: inet_aton.c,v 1.2 2000-01-09 21:35:45 fenner Exp $ */
40
41#ifndef lint
42static const char rcsid[] =
43 "@(#) $Header: /tcpdump/master/tcpdump/missing/inet_aton.c,v 1.2 2000-01-09 21:35:45 fenner Exp $";
44#endif
itojun7ddb7931999-10-30 07:53:37 +000045
46#include <sys/types.h>
47#include <netinet/in.h>
48#include <netdb.h>
49#include <arpa/inet.h>
50
51/* Minimal implementation of inet_aton.
52 * Cannot distinguish between failure and a local broadcast address. */
53
54#ifndef INADDR_NONE
55#define INADDR_NONE 0xffffffff
56#endif
57
58int
59inet_aton(const char *cp, struct in_addr *addr)
60{
61 addr->s_addr = inet_addr(cp);
62 return (addr->s_addr == INADDR_NONE) ? 0 : 1;
63}