xref: /minix3/external/bsd/tcpdump/dist/missing/inet_aton.c (revision b636d99d91c3d54204248f643c14627405d4afd1)
1*b636d99dSDavid van Moolenbroek /*
2*b636d99dSDavid van Moolenbroek  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H�gskolan
3*b636d99dSDavid van Moolenbroek  * (Royal Institute of Technology, Stockholm, Sweden).
4*b636d99dSDavid van Moolenbroek  * All rights reserved.
5*b636d99dSDavid van Moolenbroek  *
6*b636d99dSDavid van Moolenbroek  * Redistribution and use in source and binary forms, with or without
7*b636d99dSDavid van Moolenbroek  * modification, are permitted provided that the following conditions
8*b636d99dSDavid van Moolenbroek  * are met:
9*b636d99dSDavid van Moolenbroek  *
10*b636d99dSDavid van Moolenbroek  * 1. Redistributions of source code must retain the above copyright
11*b636d99dSDavid van Moolenbroek  *    notice, this list of conditions and the following disclaimer.
12*b636d99dSDavid van Moolenbroek  *
13*b636d99dSDavid van Moolenbroek  * 2. Redistributions in binary form must reproduce the above copyright
14*b636d99dSDavid van Moolenbroek  *    notice, this list of conditions and the following disclaimer in the
15*b636d99dSDavid van Moolenbroek  *    documentation and/or other materials provided with the distribution.
16*b636d99dSDavid van Moolenbroek  *
17*b636d99dSDavid van Moolenbroek  * 3. All advertising materials mentioning features or use of this software
18*b636d99dSDavid van Moolenbroek  *    must display the following acknowledgement:
19*b636d99dSDavid van Moolenbroek  *      This product includes software developed by the Kungliga Tekniska
20*b636d99dSDavid van Moolenbroek  *      H�gskolan and its contributors.
21*b636d99dSDavid van Moolenbroek  *
22*b636d99dSDavid van Moolenbroek  * 4. Neither the name of the Institute nor the names of its contributors
23*b636d99dSDavid van Moolenbroek  *    may be used to endorse or promote products derived from this software
24*b636d99dSDavid van Moolenbroek  *    without specific prior written permission.
25*b636d99dSDavid van Moolenbroek  *
26*b636d99dSDavid van Moolenbroek  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
27*b636d99dSDavid van Moolenbroek  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28*b636d99dSDavid van Moolenbroek  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29*b636d99dSDavid van Moolenbroek  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
30*b636d99dSDavid van Moolenbroek  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31*b636d99dSDavid van Moolenbroek  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32*b636d99dSDavid van Moolenbroek  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33*b636d99dSDavid van Moolenbroek  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34*b636d99dSDavid van Moolenbroek  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35*b636d99dSDavid van Moolenbroek  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36*b636d99dSDavid van Moolenbroek  * SUCH DAMAGE.
37*b636d99dSDavid van Moolenbroek  */
38*b636d99dSDavid van Moolenbroek 
39*b636d99dSDavid van Moolenbroek #include <tcpdump-stdinc.h>
40*b636d99dSDavid van Moolenbroek 
41*b636d99dSDavid van Moolenbroek /* Minimal implementation of inet_aton.
42*b636d99dSDavid van Moolenbroek  * Cannot distinguish between failure and a local broadcast address. */
43*b636d99dSDavid van Moolenbroek 
44*b636d99dSDavid van Moolenbroek #ifndef INADDR_NONE
45*b636d99dSDavid van Moolenbroek #define INADDR_NONE 0xffffffff
46*b636d99dSDavid van Moolenbroek #endif
47*b636d99dSDavid van Moolenbroek 
48*b636d99dSDavid van Moolenbroek int
inet_aton(const char * cp,struct in_addr * addr)49*b636d99dSDavid van Moolenbroek inet_aton(const char *cp, struct in_addr *addr)
50*b636d99dSDavid van Moolenbroek {
51*b636d99dSDavid van Moolenbroek   addr->s_addr = inet_addr(cp);
52*b636d99dSDavid van Moolenbroek   return (addr->s_addr == INADDR_NONE) ? 0 : 1;
53*b636d99dSDavid van Moolenbroek }
54