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 #pragma ident "%Z%%M% %I% %E% SMI"
27
28 /*
29 * Routines to handle getgr* calls in nscd
30 */
31
32 #include <stdlib.h>
33 #include "cache.h"
34
35 #define nam_db ctx->nsc_db[0]
36 #define gid_db ctx->nsc_db[1]
37
38 #define NSC_NAME_GROUP_BYNAME "getgrnam"
39 #define NSC_NAME_GROUP_BYGID "getgrgid"
40
41 static void grgid_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
42 static int grgid_compar(const void *, const void *);
43 static uint_t grgid_gethash(nss_XbyY_key_t *, int);
44
45 void
group_init_ctx(nsc_ctx_t * ctx)46 group_init_ctx(nsc_ctx_t *ctx) {
47 ctx->dbname = NSS_DBNAM_GROUP;
48 ctx->file_name = "/etc/group";
49 ctx->db_count = 2;
50 nam_db = make_cache(nsc_key_ces,
51 NSS_DBOP_GROUP_BYNAME,
52 NSC_NAME_GROUP_BYNAME,
53 NULL, NULL, NULL, nsc_ht_default, -1);
54 gid_db = make_cache(nsc_key_other,
55 NSS_DBOP_GROUP_BYGID,
56 NSC_NAME_GROUP_BYGID,
57 grgid_compar,
58 grgid_getlogstr,
59 grgid_gethash, nsc_ht_default, -1);
60 }
61
62 static void
grgid_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)63 grgid_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
64 (void) snprintf(whoami, len, "%s [key=%d]", name, argp->key.gid);
65 }
66
67 static int
grgid_compar(const void * n1,const void * n2)68 grgid_compar(const void *n1, const void *n2) {
69 nsc_entry_t *e1, *e2;
70
71 e1 = (nsc_entry_t *)n1;
72 e2 = (nsc_entry_t *)n2;
73 return (_NSC_INT_KEY_CMP(e1->key.gid, e2->key.gid));
74 }
75
76 static uint_t
grgid_gethash(nss_XbyY_key_t * key,int htsize)77 grgid_gethash(nss_XbyY_key_t *key, int htsize) {
78 return ((uint_t)key->gid % htsize);
79 }
80