revnetgroup.tproj/hash.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* $OpenBSD: hash.h,v 1.1 1997/04/15 22:06:12 maja Exp $ */
  26 /*
  27  * Copyright (c) 1995
  28  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by Bill Paul.
  41  * 4. Neither the name of the author nor the names of any co-contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  *
  57  *      $FreeBSD: hash.h,v 1.5 1997/02/22 14:22:02 peter Exp $
  58  */
  59
  60 /* Groupname entry hung off a member_entry node. */
  61 struct grouplist {
  62         char *groupname;
  63         struct grouplist *next;
  64 };
  65
  66 /* Entry in the cooked member list hash table. */
  67 struct member_entry {
  68         char *key;
  69         char *domain;
  70         struct grouplist *groups;
  71         struct member_entry *next;
  72 };
  73
  74 /* Entry in the raw netgroup table. */
  75 struct group_entry {
  76         char *key;
  77         char *data;
  78         struct group_entry *next;
  79 };
  80
  81 /* Table size (chosen arbitrarily). Not too big, not too small. */
  82 #define TABLESIZE 256
  83 #define HASH_MASK 0x000000FF
  84
  85 #define LINSIZ 1024 * 10
  86
  87 extern void store __P(( struct group_entry ** , char *, char * ));
  88 extern void mstore __P(( struct member_entry ** , char *, char *, char * ));
  89 extern char *lookup __P(( struct group_entry **, char * ));
  90 extern void __endnetgrent __P(( void ));
  91 extern void __setnetgrent __P(( char * ));
  92 extern int __getnetgrent __P(( char **, char **, char ** ));