131921Sbrian/*-
231921Sbrian * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
331921Sbrian * All rights reserved.
431921Sbrian *
531921Sbrian * Redistribution and use in source and binary forms, with or without
631921Sbrian * modification, are permitted provided that the following conditions
731921Sbrian * are met:
831921Sbrian * 1. Redistributions of source code must retain the above copyright
931921Sbrian *    notice, this list of conditions and the following disclaimer.
1031921Sbrian * 2. Redistributions in binary form must reproduce the above copyright
1131921Sbrian *    notice, this list of conditions and the following disclaimer in the
1231921Sbrian *    documentation and/or other materials provided with the distribution.
1331921Sbrian *
1431921Sbrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1531921Sbrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1631921Sbrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1731921Sbrian * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1831921Sbrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1931921Sbrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2031921Sbrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2131921Sbrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2231921Sbrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2331921Sbrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2431921Sbrian * SUCH DAMAGE.
2531921Sbrian *
2650479Speter * $FreeBSD$
2731690Sbrian */
2831690Sbrian
2937210Sbrianstruct iplist_cur {
3037210Sbrian  struct in_addr ip;
3137210Sbrian  int pos;
3237210Sbrian  char *srcptr;
3337210Sbrian  u_long srcitem;
3437210Sbrian  u_int32_t lstart;
3537210Sbrian  u_long nItems;
3637210Sbrian};
3737210Sbrian
3831690Sbrianstruct iplist {
3937210Sbrian  struct iplist_cur cur;
4037210Sbrian  u_long nItems;
4131690Sbrian  char src[LINE_LEN];
4231690Sbrian};
4331690Sbrian
4431690Sbrianextern int iplist_setsrc(struct iplist *, const char *);
4531690Sbrianextern void iplist_reset(struct iplist *);
4637210Sbrianextern struct in_addr iplist_setcurpos(struct iplist *, long);
4731690Sbrianextern struct in_addr iplist_setrandpos(struct iplist *);
4831690Sbrianextern int iplist_ip2pos(struct iplist *, struct in_addr);
4931690Sbrianextern struct in_addr iplist_next(struct iplist *);
5031690Sbrian
5131690Sbrian#define iplist_isvalid(x) ((x)->src[0] != '\0')
52