usr/src/lib/libc/port/nsl/getauuser.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 <bsm/libbsm.h>
  35 #include <secdb.h>
  36
  37
  38 /* externs from parse.c */
  39 extern char *_strtok_escape(char *, char *, char **);
  40
  41 static int auuser_stayopen;
  42
  43 /*
  44  * Unsynchronized, but it affects only
  45  * efficiency, not correctness
  46  */
  47
  48 static DEFINE_NSS_DB_ROOT(db_root);
  49 static DEFINE_NSS_GETENT(context);
  50
  51
  52 void
  53 _nss_initf_auuser(nss_db_params_t *p)
  54 {
  55         p->name = NSS_DBNAM_AUDITUSER;
  56         p->config_name    = NSS_DBNAM_PASSWD;  /* use config for "passwd" */
  57         p->default_config = NSS_DEFCONF_AUDITUSER;
  58 }
  59
  60
  61 /*
  62  * Return values: 0 = success, 1 = parse error, 2 = erange ...
  63  * The structure pointer passed in is a structure in the caller's space
  64  * wherein the field pointers would be set to areas in the buffer if
  65  * need be. instring and buffer should be separate areas.
  66  */
  67 int
  68 str2auuser(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
  69 {
  70         char            *last = NULL;
  71         char            *sep = KV_TOKEN_DELIMIT;
  72         au_user_str_t   *au_user = (au_user_str_t *)ent;
  73
  74         if (lenstr >= buflen)
  75                 return (NSS_STR_PARSE_ERANGE);
  76
  77         if (instr != buffer)
  78                 (void) strncpy(buffer, instr, buflen);
  79
  80         /*
  81          * Remove newline that nis (yp_match) puts at the
  82          * end of the entry it retrieves from the map.
  83          */
  84         if (buffer[lenstr] == '\n') {
  85                 buffer[lenstr] = '\0';
  86         }
  87
  88         /* quick exit do not entry fill if not needed */
  89         if (ent == NULL)
  90                 return (NSS_STR_PARSE_SUCCESS);
  91
  92         au_user->au_name = _strtok_escape(buffer, sep, &last);
  93         au_user->au_always = _strtok_escape(NULL, sep, &last);
  94         au_user->au_never = _strtok_escape(NULL, sep, &last);
  95
  96         return (0);
  97 }
  98
  99
 100 void
 101 _setauuser(void)
 102 {
 103         auuser_stayopen = 0;
 104         nss_setent(&db_root, _nss_initf_auuser, &context);
 105 }
 106
 107
 108 int
 109 _endauuser(void)
 110 {
 111         auuser_stayopen = 0;
 112         nss_endent(&db_root, _nss_initf_auuser, &context);
 113         nss_delete(&db_root);
 114         return (0);
 115 }
 116
 117
 118 au_user_str_t *
 119 _getauuserent(au_user_str_t *result, char *buffer, int buflen, int *h_errnop)
 120 {
 121         nss_XbyY_args_t arg;
 122         nss_status_t    res;
 123
 124         NSS_XbyY_INIT(&arg, result, buffer, buflen, str2auuser);
 125         res = nss_getent(&db_root, _nss_initf_auuser, &context, &arg);
 126         arg.status = res;
 127         *h_errnop = arg.h_errno;
 128         return ((au_user_str_t *)NSS_XbyY_FINI(&arg));
 129 }
 130
 131
 132 au_user_str_t *
 133 _getauusernam(const char *name, au_user_str_t *result, char *buffer,
 134     int buflen, int *errnop)
 135 {
 136         nss_XbyY_args_t arg;
 137         nss_status_t    res;
 138
 139         if (result == NULL) {
 140                 *errnop = AUDITUSER_PARSE_ERANGE;
 141                 return (NULL);
 142         }
 143         NSS_XbyY_INIT(&arg, result, buffer, buflen, str2auuser);
 144         arg.key.name = name;
 145         arg.stayopen = auuser_stayopen;
 146         arg.h_errno = AUDITUSER_NOT_FOUND;
 147         res = nss_search(&db_root, _nss_initf_auuser,
 148             NSS_DBOP_AUDITUSER_BYNAME, &arg);
 149         arg.status = res;
 150         *errnop = arg.h_errno;
 151         return ((au_user_str_t *)NSS_XbyY_FINI(&arg));
 152 }