45e71b2250
Found with: Coverity Prevent CID: 6192
147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
/*
|
|
* Copyright (c) 2001-2002 Chris D. Faulhaber
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include "namespace.h"
|
|
#include <sys/acl.h>
|
|
#include "un-namespace.h"
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
|
|
/*
|
|
* acl_create_entry() (23.4.7): create a new ACL entry in the ACL pointed
|
|
* to by acl_p.
|
|
*/
|
|
int
|
|
acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p)
|
|
{
|
|
struct acl *acl_int;
|
|
|
|
if (acl_p == NULL) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
acl_int = &(*acl_p)->ats_acl;
|
|
|
|
/*
|
|
* +1, because we are checking if there is space left for one more
|
|
* entry.
|
|
*/
|
|
if (acl_int->acl_cnt + 1 >= ACL_MAX_ENTRIES) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
*entry_p = &acl_int->acl_entry[acl_int->acl_cnt++];
|
|
|
|
(**entry_p).ae_tag = ACL_UNDEFINED_TAG;
|
|
(**entry_p).ae_id = ACL_UNDEFINED_ID;
|
|
(**entry_p).ae_perm = ACL_PERM_NONE;
|
|
(**entry_p).ae_entry_type = 0;
|
|
(**entry_p).ae_flags = 0;
|
|
|
|
(*acl_p)->ats_cur_entry = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
acl_create_entry_np(acl_t *acl_p, acl_entry_t *entry_p, int offset)
|
|
{
|
|
int i;
|
|
struct acl *acl_int;
|
|
|
|
if (acl_p == NULL) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
acl_int = &(*acl_p)->ats_acl;
|
|
|
|
if (acl_int->acl_cnt + 1 >= ACL_MAX_ENTRIES) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
if (offset < 0 || offset >= acl_int->acl_cnt) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
|
|
/* Make room for the new entry. */
|
|
for (i = acl_int->acl_cnt; i > offset; i--)
|
|
acl_int->acl_entry[i] = acl_int->acl_entry[i - 1];
|
|
|
|
acl_int->acl_cnt++;
|
|
|
|
*entry_p = &acl_int->acl_entry[offset];
|
|
|
|
(**entry_p).ae_tag = ACL_UNDEFINED_TAG;
|
|
(**entry_p).ae_id = ACL_UNDEFINED_ID;
|
|
(**entry_p).ae_perm = ACL_PERM_NONE;
|
|
(**entry_p).ae_entry_type = 0;
|
|
(**entry_p).ae_flags= 0;
|
|
|
|
(*acl_p)->ats_cur_entry = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* acl_get_entry() (23.4.14): returns an ACL entry from an ACL
|
|
* indicated by entry_id.
|
|
*/
|
|
int
|
|
acl_get_entry(acl_t acl, int entry_id, acl_entry_t *entry_p)
|
|
{
|
|
struct acl *acl_int;
|
|
|
|
if (acl == NULL) {
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|
|
acl_int = &acl->ats_acl;
|
|
|
|
switch(entry_id) {
|
|
case ACL_FIRST_ENTRY:
|
|
acl->ats_cur_entry = 0;
|
|
/* PASSTHROUGH */
|
|
case ACL_NEXT_ENTRY:
|
|
if (acl->ats_cur_entry >= acl->ats_acl.acl_cnt)
|
|
return 0;
|
|
*entry_p = &acl_int->acl_entry[acl->ats_cur_entry++];
|
|
return (1);
|
|
}
|
|
|
|
errno = EINVAL;
|
|
return (-1);
|
|
}
|