xref: /illumos-gate/usr/src/cmd/nscd/getpw.c (revision aaceae985c2e78cadef76bf0b7b50ed887ccb3a6)
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 getpw* calls in nscd
28  */
29 
30 #include <stdlib.h>
31 #include "cache.h"
32 
33 #define	nam_db	ctx->nsc_db[0]
34 #define	uid_db	ctx->nsc_db[1]
35 
36 #define	NSC_NAME_PASSWD_BYNAME	"getpwnam"
37 #define	NSC_NAME_PASSWD_BYUID	"getpwuid"
38 
39 static void pwuid_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
40 static int pwuid_compar(const void *, const void *);
41 static uint_t pwuid_gethash(nss_XbyY_key_t *, int);
42 
43 void
44 passwd_init_ctx(nsc_ctx_t *ctx) {
45 	ctx->dbname = NSS_DBNAM_PASSWD;
46 	ctx->file_name = "/etc/passwd";
47 	ctx->db_count = 2;
48 	ctx->cfg.pos_ttl = 600;
49 	nam_db = make_cache(nsc_key_ces,
50 			NSS_DBOP_PASSWD_BYNAME,
51 			NSC_NAME_PASSWD_BYNAME,
52 			NULL, NULL,
53 			NULL, nsc_ht_default, -1);
54 
55 	uid_db = make_cache(nsc_key_other,
56 			NSS_DBOP_PASSWD_BYUID,
57 			NSC_NAME_PASSWD_BYUID,
58 			pwuid_compar,
59 			pwuid_getlogstr,
60 			pwuid_gethash, nsc_ht_default, -1);
61 }
62 
63 static int
64 pwuid_compar(const void *n1, const void *n2) {
65 	nsc_entry_t	*e1, *e2;
66 
67 	e1 = (nsc_entry_t *)n1;
68 	e2 = (nsc_entry_t *)n2;
69 	return (_NSC_INT_KEY_CMP(e1->key.uid, e2->key.uid));
70 }
71 
72 static uint_t
73 pwuid_gethash(nss_XbyY_key_t *key, int htsize) {
74 	return ((uint_t)key->uid % htsize);
75 }
76 
77 static void
78 pwuid_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
79 	(void) snprintf(whoami, len, "%s [key=%d]", name, argp->key.uid);
80 }
81