1 /*
2 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H�gskolan
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 * H�gskolan 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
39 /* $Id: inet_aton.c,v 1.6 2003-11-16 09:36:49 guy Exp $ */
40
41 #ifndef lint
42 static const char rcsid[] _U_ =
43 "@(#) $Header: /tcpdump/master/tcpdump/missing/inet_aton.c,v 1.6 2003-11-16 09:36:49 guy Exp $";
44 #endif
45
46 #include <tcpdump-stdinc.h>
47
48 /* Minimal implementation of inet_aton.
49 * Cannot distinguish between failure and a local broadcast address. */
50
51 #ifndef INADDR_NONE
52 #define INADDR_NONE 0xffffffff
53 #endif
54
55 int
inet_aton(const char * cp,struct in_addr * addr)56 inet_aton(const char *cp, struct in_addr *addr)
57 {
58 addr->s_addr = inet_addr(cp);
59 return (addr->s_addr == INADDR_NONE) ? 0 : 1;
60 }
61