usr.sbin/ppp/iplist.h

   1 /*-
   2  * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 struct iplist_cur {
  30   struct in_addr ip;
  31   int pos;
  32   char *srcptr;
  33   u_long srcitem;
  34   u_int32_t lstart;
  35   u_long nItems;
  36 };
  37
  38 struct iplist {
  39   struct iplist_cur cur;
  40   u_long nItems;
  41   char src[LINE_LEN];
  42 };
  43
  44 extern int iplist_setsrc(struct iplist *, const char *);
  45 extern void iplist_reset(struct iplist *);
  46 extern struct in_addr iplist_setcurpos(struct iplist *, long);
  47 extern struct in_addr iplist_setrandpos(struct iplist *);
  48 extern int iplist_ip2pos(struct iplist *, struct in_addr);
  49 extern struct in_addr iplist_next(struct iplist *);
  50
  51 #define iplist_isvalid(x) ((x)->src[0] != '\0')