getuserattr.c revision cb5caa98562cf06753163f558cbcfe30b8f4673a
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "mt.h"
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/types.h>
#include <nss_dbdefs.h>
#include <string.h>
#include <user_attr.h>
/* externs from libc */
extern void _nss_XbyY_fgets(FILE *, nss_XbyY_args_t *);
/* externs from parse.c */
extern char *_strtok_escape(char *, char *, char **);
static int userattr_stayopen;
/*
* Unsynchronized, but it affects only
* efficiency, not correctness
*/
static DEFINE_NSS_DB_ROOT(db_root);
static DEFINE_NSS_GETENT(context);
void
_nss_initf_userattr(nss_db_params_t *p)
{
p->name = NSS_DBNAM_USERATTR;
p->config_name = NSS_DBNAM_PASSWD; /* use config for "passwd" */
p->default_config = NSS_DEFCONF_USERATTR;
}
/*
* Return values: 0 = success, 1 = parse error, 2 = erange ...
* The structure pointer passed in is a structure in the caller's space
* wherein the field pointers would be set to areas in the buffer if
* need be. instring and buffer should be separate areas.
*/
int
str2userattr(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
{
char *last = NULL;
char *sep = KV_TOKEN_DELIMIT;
userstr_t *user = (userstr_t *)ent;
if (lenstr >= buflen)
return (NSS_STR_PARSE_ERANGE);
if (instr != buffer)
(void) strncpy(buffer, instr, buflen);
/*
* Remove newline that nis (yp_match) puts at the
* end of the entry it retrieves from the map.
*/
if (buffer[lenstr] == '\n') {
buffer[lenstr] = '\0';
}
/* quick exit do not entry fill if not needed */
if (ent == (void *)NULL)
return (NSS_STR_PARSE_SUCCESS);
user->name = _strtok_escape(buffer, sep, &last);
user->qualifier = _strtok_escape(NULL, sep, &last);
user->res1 = _strtok_escape(NULL, sep, &last);
user->res2 = _strtok_escape(NULL, sep, &last);
user->attr = _strtok_escape(NULL, sep, &last);
return (0);
}
void
_setuserattr(void)
{
userattr_stayopen = 0;
nss_setent(&db_root, _nss_initf_userattr, &context);
}
void
_enduserattr(void)
{
userattr_stayopen = 0;
nss_endent(&db_root, _nss_initf_userattr, &context);
nss_delete(&db_root);
}
userstr_t *
_getuserattr(userstr_t *result, char *buffer, int buflen, int *h_errnop)
{
nss_XbyY_args_t arg;
nss_status_t res;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
res = nss_getent(&db_root, _nss_initf_userattr, &context, &arg);
arg.status = res;
*h_errnop = arg.h_errno;
return ((userstr_t *)NSS_XbyY_FINI(&arg));
}
userstr_t *
_fgetuserattr(FILE *f, userstr_t *result, char *buffer, int buflen)
{
nss_XbyY_args_t arg;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
_nss_XbyY_fgets(f, &arg);
return ((userstr_t *)NSS_XbyY_FINI(&arg));
}
userstr_t *
_getusernam(const char *name, userstr_t *result, char *buffer, int buflen,
int *errnop)
{
nss_XbyY_args_t arg;
nss_status_t res;
NSS_XbyY_INIT(&arg, result, buffer, buflen, str2userattr);
arg.key.name = name;
arg.stayopen = userattr_stayopen;
res = nss_search(&db_root, _nss_initf_userattr,
NSS_DBOP_USERATTR_BYNAME, &arg);
arg.status = res;
*errnop = arg.h_errno;
return ((userstr_t *)NSS_XbyY_FINI(&arg));
}