xref: /titanic_52/usr/src/lib/libnsl/nss/getauthattr.c (revision ab5c384599c214af20872d1d5b10cfd4c6486116)
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 <stdlib.h>
31 #include <sys/types.h>
32 #include <nss_dbdefs.h>
33 #include <string.h>
34 #include <auth_attr.h>
35 
36 
37 /* externs from parse.c */
38 extern char *_strtok_escape(char *, char *, char **);
39 
40 static int authattr_stayopen = 0;
41 /*
42  * Unsynchronized, but it affects only
43  * efficiency, not correctness
44  */
45 
46 static DEFINE_NSS_DB_ROOT(db_root);
47 static DEFINE_NSS_GETENT(context);
48 
49 void
50 _nss_initf_authattr(nss_db_params_t *p)
51 {
52 	p->name = NSS_DBNAM_AUTHATTR;
53 	p->default_config = NSS_DEFCONF_AUTHATTR;
54 }
55 
56 
57 /*
58  * Return values: 0 = success, 1 = parse error, 2 = erange ...
59  * The structure pointer passed in is a structure in the caller's space
60  * wherein the field pointers would be set to areas in the buffer if
61  * need be. instring and buffer should be separate areas.
62  */
63 int
64 str2authattr(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
65 {
66 	char		*last = NULL;
67 	char		*sep = KV_TOKEN_DELIMIT;
68 	authstr_t	*auth = (authstr_t *)ent;
69 
70 	if (lenstr >= buflen)
71 		return (NSS_STR_PARSE_ERANGE);
72 
73 	if (instr != buffer)
74 		(void) strncpy(buffer, instr, buflen);
75 
76 	/*
77 	 * Remove newline that nis (yp_match) puts at the
78 	 * end of the entry it retrieves from the map.
79 	 */
80 	if (buffer[lenstr] == '\n')
81 		buffer[lenstr] = '\0';
82 
83 	/* quick exit do not entry fill if not needed */
84 	if (ent == (void *)NULL)
85 		return (NSS_STR_PARSE_SUCCESS);
86 
87 	auth->name = _strtok_escape(buffer, sep, &last);
88 	auth->res1 = _strtok_escape(NULL, sep, &last);
89 	auth->res2 = _strtok_escape(NULL, sep, &last);
90 	auth->short_desc = _strtok_escape(NULL, sep, &last);
91 	auth->long_desc = _strtok_escape(NULL, sep, &last);
92 	auth->attr = _strtok_escape(NULL, sep, &last);
93 
94 	return (0);
95 }
96 
97 
98 void
99 _setauthattr(void)
100 {
101 	authattr_stayopen = 0;
102 	nss_setent(&db_root, _nss_initf_authattr, &context);
103 }
104 
105 
106 void
107 _endauthattr(void)
108 {
109 	authattr_stayopen = 0;
110 	nss_endent(&db_root, _nss_initf_authattr, &context);
111 	nss_delete(&db_root);
112 }
113 
114 
115 authstr_t *
116 _getauthattr(authstr_t *result, char *buffer, int buflen, int *h_errnop)
117 {
118 	nss_XbyY_args_t arg;
119 	nss_status_t res;
120 
121 	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2authattr);
122 	res = nss_getent(&db_root, _nss_initf_authattr, &context, &arg);
123 	arg.status = res;
124 	*h_errnop = arg.h_errno;
125 	return ((authstr_t *)NSS_XbyY_FINI(&arg));
126 }
127 
128 
129 authstr_t *
130 _getauthnam(const char *name, authstr_t *result, char *buffer, int buflen,
131     int *errnop)
132 {
133 	nss_XbyY_args_t arg;
134 	nss_status_t    res;
135 
136 	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2authattr);
137 	arg.key.name = name;
138 	arg.stayopen = authattr_stayopen;
139 	res = nss_search(&db_root, _nss_initf_authattr,
140 	    NSS_DBOP_AUTHATTR_BYNAME, &arg);
141 	arg.status = res;
142 	*errnop = arg.h_errno;
143 	return ((authstr_t *)NSS_XbyY_FINI(&arg));
144 }
145