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/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include "mt.h"
30#include <stdio.h>
31#include <stdlib.h>
32#include <limits.h>
33#include <sys/types.h>
34#include <nss_dbdefs.h>
35#include <string.h>
36#include <user_attr.h>
37
38/* externs from libc */
39extern void _nss_XbyY_fgets(FILE *, nss_XbyY_args_t *);
40/* externs from parse.c */
41extern char *_strtok_escape(char *, char *, char **);
42
43
44static int userattr_stayopen;
45
46/*
47 * Unsynchronized, but it affects only
48 * efficiency, not correctness
49 */
50
51static DEFINE_NSS_DB_ROOT(db_root);
52static DEFINE_NSS_GETENT(context);
53
54
55void
56_nss_initf_userattr(nss_db_params_t *p)
57{
58	p->name = NSS_DBNAM_USERATTR;
59	p->config_name    = NSS_DBNAM_PASSWD; /* use config for "passwd" */
60	p->default_config = NSS_DEFCONF_USERATTR;
61}
62
63
64/*
65 * Return values: 0 = success, 1 = parse error, 2 = erange ...
66 * The structure pointer passed in is a structure in the caller's space
67 * wherein the field pointers would be set to areas in the buffer if
68 * need be. instring and buffer should be separate areas.
69 */
70int
71str2userattr(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
72{
73	char		*last = NULL;
74	char		*sep = KV_TOKEN_DELIMIT;
75	userstr_t	*user = (userstr_t *)ent;
76
77	if (lenstr >= buflen)
78		return (NSS_STR_PARSE_ERANGE);
79
80	if (instr != buffer)
81		(void) strncpy(buffer, instr, buflen);
82
83	/*
84	 * Remove newline that nis (yp_match) puts at the
85	 * end of the entry it retrieves from the map.
86	 */
87	if (buffer[lenstr] == '\n') {
88		buffer[lenstr] = '\0';
89	}
90
91	/* quick exit do not entry fill if not needed */
92	if (ent == (void *)NULL)
93		return (NSS_STR_PARSE_SUCCESS);
94
95	user->name = _strtok_escape(buffer, sep, &last);
96	user->qualifier = _strtok_escape(NULL, sep, &last);
97	user->res1 = _strtok_escape(NULL, sep, &last);
98	user->res2 = _strtok_escape(NULL, sep, &last);
99	user->attr = _strtok_escape(NULL, sep, &last);
100
101	return (0);
102}
103
104
105void
106_setuserattr(void)
107{
108	userattr_stayopen = 0;
109	nss_setent(&db_root, _nss_initf_userattr, &context);
110}
111
112
113void
114_enduserattr(void)
115{
116	userattr_stayopen = 0;
117	nss_endent(&db_root, _nss_initf_userattr, &context);
118	nss_delete(&db_root);
119}
120
121
122userstr_t *
123_getuserattr(userstr_t *result, char *buffer, int buflen, int *h_errnop)
124{
125	nss_XbyY_args_t arg;
126	nss_status_t    res;
127
128	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
129	res = nss_getent(&db_root, _nss_initf_userattr, &context, &arg);
130	arg.status = res;
131	*h_errnop = arg.h_errno;
132	return ((userstr_t *)NSS_XbyY_FINI(&arg));
133}
134
135
136userstr_t *
137_fgetuserattr(FILE *f, userstr_t *result, char *buffer, int buflen)
138{
139	nss_XbyY_args_t arg;
140
141	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
142	_nss_XbyY_fgets(f, &arg);
143	return ((userstr_t *)NSS_XbyY_FINI(&arg));
144}
145
146
147
148userstr_t *
149_getusernam(const char *name, userstr_t *result, char *buffer, int buflen,
150    int *errnop)
151{
152	nss_XbyY_args_t arg;
153	nss_status_t    res;
154
155	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
156	arg.key.name = name;
157	arg.stayopen = userattr_stayopen;
158	res = nss_search(&db_root, _nss_initf_userattr,
159	    NSS_DBOP_USERATTR_BYNAME, &arg);
160	arg.status = res;
161	*errnop = arg.h_errno;
162	return ((userstr_t *)NSS_XbyY_FINI(&arg));
163}
164