/*	$NetBSD: extern.h,v 1.8 2005/03/20 02:43:50 thorpej Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *      The Regents of the University of California.  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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 */

#define	RIDADDR 0  
#define	ADDR    1
#define	MASK    2
#define	DSTADDR 3

struct afswtch {
	const char *af_name;
	short af_af;
	void (*af_status)(int);
	void (*af_getaddr)(const char *, int);
	void (*af_getprefix)(const char *, int);
	u_long af_difaddr;
	u_long af_aifaddr;
	u_long af_gifaddr;
	void *af_ridreq;
	void *af_addreq;
};

extern const struct afswtch *afp;
extern struct ifreq ifr;
extern int s;
extern int explicit_prefix;
extern int clearaddr;
extern int newaddr;
extern char name[30];

extern u_short flags;
extern int lflag;
extern int zflag;
#ifdef INET6
extern int Lflag;
#endif /* INET6 */

extern struct ifreq ifr, ridreq;
extern struct ifaliasreq addreq;

const struct afswtch *lookup_af_byname(const char *);
const struct afswtch *lookup_af_bynum(int);
const char *get_string(const char *, const char *, u_int8_t *, int *);
void	print_string(const u_int8_t *, int);
void    getsock(int);