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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.9 */
/* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
#include "stdio.h"
#include "errno.h"
#include "string.h"
#include "stdlib.h"
#include "lp.h"
#include "access.h"
static char **_loadaccess ( char * );
/**
** load_userform_access() - LOAD ALLOW/DENY LISTS FOR USER+FORM
**/
int
load_userform_access(char *form, char ***pallow, char ***pdeny)
{
return (loadaccess(Lp_A_Forms, form, "", pallow, pdeny));
}
/**
** load_userprinter_access() - LOAD ALLOW/DENY LISTS FOR USER+PRINTER
**/
int
load_userprinter_access(char *printer, char ***pallow, char ***pdeny)
{
return (loadaccess(Lp_A_Printers, printer, UACCESSPREFIX, pallow,
pdeny));
}
/**
** load_formprinter_access() - LOAD ALLOW/DENY LISTS FOR FORM+PRINTER
**/
int
load_formprinter_access(char *printer, char ***pallow, char ***pdeny)
{
return (loadaccess(Lp_A_Printers, printer, FACCESSPREFIX, pallow,
pdeny));
}
/**
** load_paperprinter_access() - LOAD ALLOW/DENY LISTS FOR FORM+PRINTER
**/
int
load_paperprinter_access(char *printer, char ***pallow, char ***pdeny)
{
return (loadaccess(Lp_A_Printers, printer, PACCESSPREFIX, pallow,
pdeny));
}
/**
** loadaccess() - LOAD ALLOW OR DENY LISTS
**/
int
loadaccess(char *dir, char *name, char *prefix, char ***pallow, char ***pdeny)
{
register char *allow_file = 0,
*deny_file = 0;
int ret;
if (
!(allow_file = getaccessfile(dir, name, prefix, ALLOWFILE))
|| !(*pallow = _loadaccess(allow_file)) && errno != ENOENT
|| !(deny_file = getaccessfile(dir, name, prefix, DENYFILE))
|| !(*pdeny = _loadaccess(deny_file)) && errno != ENOENT
)
ret = -1;
else
ret = 0;
if (allow_file)
Free (allow_file);
if (deny_file)
Free (deny_file);
return (ret);
}
/**
** _loadaccess() - LOAD ALLOW OR DENY FILE
**/
static char **
_loadaccess(char *file)
{
register size_t nalloc,
nlist;
register char **list;
int fd;
char buf[BUFSIZ];
if ((fd = open_locked(file, "r", 0)) < 0)
return (0);
/*
* Preallocate space for the initial list. We'll always
* allocate one more than the list size, for the terminating null.
*/
nalloc = ACC_MAX_GUESS;
list = (char **)Malloc((nalloc + 1) * sizeof(char *));
if (!list) {
close(fd);
errno = ENOMEM;
return (0);
}
errno = 0;
for (nlist = 0; fdgets(buf, BUFSIZ, fd); ) {
buf[strlen(buf) - 1] = 0;
/*
* Allocate more space if needed.
*/
if (nlist >= nalloc) {
nalloc += ACC_MAX_GUESS;
list = (char **)Realloc(
(char *)list,
(nalloc + 1) * sizeof(char *)
);
if (!list) {
close(fd);
return (0);
}
}
list[nlist] = Strdup(buf); /* if fail, minor problem */
list[++nlist] = 0;
}
if (errno != 0) {
int save_errno = errno;
close(fd);
freelist (list);
errno = save_errno;
return (0);
}
close(fd);
/*
* If we have more space allocated than we need,
* return the extra.
*/
if (nlist != nalloc) {
list = (char **)Realloc(
(char *)list,
(nlist + 1) * sizeof(char *)
);
if (!list) {
errno = ENOMEM;
return (0);
}
}
list[nlist] = 0;
return (list);
}
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