usr/src/lib/libnsl/nss/getauthattr.c

   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 }