usr.sbin/ypserv/revnetgroup/hash.h

   1 /*      $NetBSD: hash.h,v 1.2 1997/10/06 06:54:12 lukem Exp $ */
   2
   3 /*
   4  * Copyright (c) 1995
   5  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Bill Paul.
  18  * 4. Neither the name of the author nor the names of any co-contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  */
  35
  36 /* Groupname entry hung off a member_entry node. */
  37 struct grouplist {
  38         char *groupname;
  39         struct grouplist *next;
  40 };
  41
  42 /* Entry in the cooked member list hash table. */
  43 struct member_entry {
  44         char *key;
  45         char *domain;
  46         struct grouplist *groups;
  47         struct member_entry *next;
  48 };
  49
  50 /* Entry in the raw netgroup table. */
  51 struct group_entry {
  52         char *key;
  53         char *data;
  54         struct group_entry *next;
  55 };
  56
  57 /* Table size (chosen arbitrarily). Not too big, not too small. */
  58 #define TABLESIZE 256
  59 #define HASH_MASK 0x000000FF
  60
  61 #define LINSIZ 1024 * 10
  62
  63 char   *lookup(struct group_entry **, const char *);
  64 void    mstore(struct member_entry **, const char *, const char *,
  65                const char *);
  66 void    store(struct group_entry **, const char *, const char *);
  67 void    rng_endnetgrent(void);
  68 int     rng_getnetgrent(char **, char **, char **);
  69 void    rng_setnetgrent(const char *);