xref: /illumos-gate/usr/src/lib/libnsl/nss/getauuser.c (revision 1e56f352c1c208679012bca47d552e127f5b1072)
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 #include "mt.h"
28 #include <stdlib.h>
29 #include <sys/types.h>
30 #include <nss_dbdefs.h>
31 #include <string.h>
32 #include <bsm/libbsm.h>
33 #include <secdb.h>
34 
35 
36 /* externs from parse.c */
37 extern char *_strtok_escape(char *, char *, char **);
38 
39 static int auuser_stayopen;
40 
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 
50 void
51 _nss_initf_auuser(nss_db_params_t *p)
52 {
53 	p->name	= NSS_DBNAM_AUDITUSER;
54 	p->config_name    = NSS_DBNAM_PASSWD;  /* use config for "passwd" */
55 	p->default_config = NSS_DEFCONF_AUDITUSER;
56 }
57 
58 
59 /*
60  * Return values: 0 = success, 1 = parse error, 2 = erange ...
61  * The structure pointer passed in is a structure in the caller's space
62  * wherein the field pointers would be set to areas in the buffer if
63  * need be. instring and buffer should be separate areas.
64  */
65 int
66 str2auuser(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
67 {
68 	char		*last = NULL;
69 	char		*sep = KV_TOKEN_DELIMIT;
70 	au_user_str_t	*au_user = (au_user_str_t *)ent;
71 
72 	if (lenstr >= buflen)
73 		return (NSS_STR_PARSE_ERANGE);
74 
75 	if (instr != buffer)
76 		(void) strncpy(buffer, instr, buflen);
77 
78 	/*
79 	 * Remove newline that nis (yp_match) puts at the
80 	 * end of the entry it retrieves from the map.
81 	 */
82 	if (buffer[lenstr] == '\n') {
83 		buffer[lenstr] = '\0';
84 	}
85 
86 	/* quick exit do not entry fill if not needed */
87 	if (ent == (void *)NULL)
88 		return (NSS_STR_PARSE_SUCCESS);
89 
90 	au_user->au_name = _strtok_escape(buffer, sep, &last);
91 	au_user->au_always = _strtok_escape(NULL, sep, &last);
92 	au_user->au_never = _strtok_escape(NULL, sep, &last);
93 
94 	return (0);
95 }
96 
97 
98 void
99 _setauuser(void)
100 {
101 	auuser_stayopen = 0;
102 	nss_setent(&db_root, _nss_initf_auuser, &context);
103 }
104 
105 
106 int
107 _endauuser(void)
108 {
109 	auuser_stayopen = 0;
110 	nss_endent(&db_root, _nss_initf_auuser, &context);
111 	nss_delete(&db_root);
112 	return (0);
113 }
114 
115 
116 au_user_str_t *
117 _getauuserent(au_user_str_t *result, char *buffer, int buflen, int *h_errnop)
118 {
119 	nss_XbyY_args_t arg;
120 	nss_status_t    res;
121 
122 	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2auuser);
123 	res = nss_getent(&db_root, _nss_initf_auuser, &context, &arg);
124 	arg.status = res;
125 	*h_errnop = arg.h_errno;
126 	return ((au_user_str_t *)NSS_XbyY_FINI(&arg));
127 }
128 
129 
130 au_user_str_t *
131 _getauusernam(const char *name, au_user_str_t *result, char *buffer,
132     int buflen, int *errnop)
133 {
134 	nss_XbyY_args_t arg;
135 	nss_status_t    res;
136 
137 	if (result == NULL) {
138 		*errnop = AUDITUSER_PARSE_ERANGE;
139 		return (NULL);
140 	}
141 	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2auuser);
142 	arg.key.name = name;
143 	arg.stayopen = auuser_stayopen;
144 	arg.h_errno = AUDITUSER_NOT_FOUND;
145 	res = nss_search(&db_root, _nss_initf_auuser,
146 	    NSS_DBOP_AUDITUSER_BYNAME, &arg);
147 	arg.status = res;
148 	*errnop = arg.h_errno;
149 	return ((au_user_str_t *)NSS_XbyY_FINI(&arg));
150 }
151