windows_extra.c

mobile ip 在linux下的一种实现

/* $Id: windows_extra.c,v 1.2 2000/11/17 22:51:37 jm Exp $
 * Low level functions for not included features for Windows (cygwin32)
 *
 * Dynamic hierarchial IP tunnel
 * Copyright (C) 2000, Dynamics group
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation. See README and COPYING for
 * more details.
 */

#include "config.h"

#ifdef DYN_TARGET_WINDOWS

#include <stdio.h>
#include <netinet/in.h>

/* FIX: for some reason inet_aton() was not available in cygwin's libraries, so
 * it is define here; this may need to be removed if the function is added to
 * the libraries.. */
int inet_aton(const char *cp, struct in_addr *inp)
{
	int a1, a2, a3, a4;
	a1 = a2 = a3 = a4 = 0;
	if (sscanf(cp, "%d.%d.%d.%d", &a1, &a2, &a3, &a4) != 4)
		return 0;
	inp->s_addr = htonl((a1 << 24) | (a2 << 16) | (a3 << 8) | a4);
	return 1;
}

#endif /* DYN_TARGET_WINDOWS */