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 __P((struct group_entry **, const char *)); 64 void mstore __P((struct member_entry **, const char *, const char *, const 65 char *)); 66 void store __P((struct group_entry **, const char *, const char *)); 67 void rng_endnetgrent __P((void)); 68 int rng_getnetgrent __P((char **, char **, char **)); 69 void rng_setnetgrent __P((const char *)); 70