1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /*
27 * Routines to handle getgr* calls in nscd
28 */
29
30 #include <stdlib.h>
31 #include "cache.h"
32
33 #define nam_db ctx->nsc_db[0]
34 #define gid_db ctx->nsc_db[1]
35
36 #define NSC_NAME_GROUP_BYNAME "getgrnam"
37 #define NSC_NAME_GROUP_BYGID "getgrgid"
38
39 static void grgid_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
40 static int grgid_compar(const void *, const void *);
41 static uint_t grgid_gethash(nss_XbyY_key_t *, int);
42
43 void
group_init_ctx(nsc_ctx_t * ctx)44 group_init_ctx(nsc_ctx_t *ctx) {
45 ctx->dbname = NSS_DBNAM_GROUP;
46 ctx->file_name = "/etc/group";
47 ctx->db_count = 2;
48 nam_db = make_cache(nsc_key_ces,
49 NSS_DBOP_GROUP_BYNAME,
50 NSC_NAME_GROUP_BYNAME,
51 NULL, NULL, NULL, nsc_ht_default, -1);
52 gid_db = make_cache(nsc_key_other,
53 NSS_DBOP_GROUP_BYGID,
54 NSC_NAME_GROUP_BYGID,
55 grgid_compar,
56 grgid_getlogstr,
57 grgid_gethash, nsc_ht_default, -1);
58 }
59
60 static void
grgid_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)61 grgid_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
62 (void) snprintf(whoami, len, "%s [key=%d]", name, argp->key.gid);
63 }
64
65 static int
grgid_compar(const void * n1,const void * n2)66 grgid_compar(const void *n1, const void *n2) {
67 nsc_entry_t *e1, *e2;
68
69 e1 = (nsc_entry_t *)n1;
70 e2 = (nsc_entry_t *)n2;
71 return (_NSC_INT_KEY_CMP(e1->key.gid, e2->key.gid));
72 }
73
74 static uint_t
grgid_gethash(nss_XbyY_key_t * key,int htsize)75 grgid_gethash(nss_XbyY_key_t *key, int htsize) {
76 return ((uint_t)key->gid % htsize);
77 }
78