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inet_aton.c

/*
 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the Kungliga Tekniska
 *      Högskolan and its contributors.
 * 
 * 4. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/* $Id: inet_aton.c 903 2000-11-30 07:53:28Z fyodor $ */

#ifndef lint
static const char rcsid[] =
     "@(#) $Header$";
#endif

#if HAVE_CONFIG_H
#include "nbase_config.h"
#else
#ifdef WIN32
#include "nbase_winconfig.h"
#endif /* WIN32 */
#endif /* HAVE_CONFIG_H */

#include "nbase.h"

#ifdef WIN32
#include <winsock2.h>
#endif

#include <sys/types.h>
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif

#if HAVE_NETDB_H
#include <netdb.h>
#endif

#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif

/* Minimal implementation of inet_aton.
 * Cannot distinguish between failure and a local broadcast address. */

#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif

int
inet_aton(const char *cp, struct in_addr *addr)
{
  addr->s_addr = inet_addr(cp);
  return (addr->s_addr == INADDR_NONE) ? 0 : 1;
}

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