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