xref: /illumos-gate/usr/src/cmd/nscd/getpw.c (revision 1ce1951135b81c803c8dcf2f3c756009b1b0170a)
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 getpw* calls in nscd
30  */
31 
32 #include <stdlib.h>
33 #include "cache.h"
34 
35 #define	nam_db	ctx->nsc_db[0]
36 #define	uid_db	ctx->nsc_db[1]
37 
38 #define	NSC_NAME_PASSWD_BYNAME	"getpwnam"
39 #define	NSC_NAME_PASSWD_BYUID	"getpwuid"
40 
41 static void pwuid_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
42 static int pwuid_compar(const void *, const void *);
43 static uint_t pwuid_gethash(nss_XbyY_key_t *, int);
44 
45 void
46 passwd_init_ctx(nsc_ctx_t *ctx) {
47 	ctx->dbname = NSS_DBNAM_PASSWD;
48 	ctx->file_name = "/etc/passwd";
49 	ctx->db_count = 2;
50 	ctx->cfg.pos_ttl = 600;
51 	nam_db = make_cache(nsc_key_ces,
52 			NSS_DBOP_PASSWD_BYNAME,
53 			NSC_NAME_PASSWD_BYNAME,
54 			NULL, NULL,
55 			NULL, nsc_ht_default, -1);
56 
57 	uid_db = make_cache(nsc_key_other,
58 			NSS_DBOP_PASSWD_BYUID,
59 			NSC_NAME_PASSWD_BYUID,
60 			pwuid_compar,
61 			pwuid_getlogstr,
62 			pwuid_gethash, nsc_ht_default, -1);
63 }
64 
65 static int
66 pwuid_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.uid, e2->key.uid));
72 }
73 
74 static uint_t
75 pwuid_gethash(nss_XbyY_key_t *key, int htsize) {
76 	return ((uint_t)key->uid % htsize);
77 }
78 
79 static void
80 pwuid_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
81 	(void) snprintf(whoami, len, "%s [key=%d]", name, argp->key.uid);
82 }
83