revnetgroup.tproj/hash.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /* $OpenBSD: hash.h,v 1.1 1997/04/15 22:06:12 maja Exp $ */
  25 /*
  26  * Copyright (c) 1995
  27  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by Bill Paul.
  40  * 4. Neither the name of the author nor the names of any co-contributors
  41  *    may be used to endorse or promote products derived from this software
  42  *    without specific prior written permission.
  43  *
  44  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
  48  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  *      $FreeBSD: hash.h,v 1.5 1997/02/22 14:22:02 peter Exp $
  57  */
  58
  59 /* Groupname entry hung off a member_entry node. */
  60 struct grouplist {
  61         char *groupname;
  62         struct grouplist *next;
  63 };
  64
  65 /* Entry in the cooked member list hash table. */
  66 struct member_entry {
  67         char *key;
  68         char *domain;
  69         struct grouplist *groups;
  70         struct member_entry *next;
  71 };
  72
  73 /* Entry in the raw netgroup table. */
  74 struct group_entry {
  75         char *key;
  76         char *data;
  77         struct group_entry *next;
  78 };
  79
  80 /* Table size (chosen arbitrarily). Not too big, not too small. */
  81 #define TABLESIZE 256
  82 #define HASH_MASK 0x000000FF
  83
  84 #define LINSIZ 1024 * 10
  85
  86 extern void store __P(( struct group_entry ** , char *, char * ));
  87 extern void mstore __P(( struct member_entry ** , char *, char *, char * ));
  88 extern char *lookup __P(( struct group_entry **, char * ));
  89 extern void __endnetgrent __P(( void ));
  90 extern void __setnetgrent __P(( char * ));
  91 extern int __getnetgrent __P(( char **, char **, char ** ));