1 /* 2 * Copyright (c) 1995 3 * Bill Paul <wpaul@ctr.columbia.edu>. 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD: src/libexec/revnetgroup/hash.h,v 1.6 1999/08/28 00:09:48 peter Exp $ 33 * $DragonFly: src/libexec/revnetgroup/hash.h,v 1.4 2008/11/19 17:46:55 swildner Exp $ 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 const 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 extern void store ( struct group_entry ** , char *, char * ); 64 extern void mstore ( struct member_entry ** , char *, char *, char * ); 65 extern char *lookup ( struct group_entry **, char * ); 66 extern void __endnetgrent ( void ); 67 extern void __setnetgrent ( char * ); 68 extern int __getnetgrent ( char **, char **, char ** ); 69