14721edabe
o acl_calc_mask(): calculates the ACL mask entry associated with
the given ACL.
o acl_delete_entry(): remove a specified ACL entry from the given
ACL.
Approved by: rwatson
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2001 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/* acl_delete_entry() - delete an ACL entry from an ACL */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/acl.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
int
|
|
acl_delete_entry(acl_t acl, acl_entry_t entry_d)
|
|
{
|
|
int i;
|
|
|
|
if (!acl || !entry_d || (acl->acl_cnt < 1) ||
|
|
(acl->acl_cnt > ACL_MAX_ENTRIES)) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
for (i = 0; i < acl->acl_cnt; i++) {
|
|
/* if this is our entry... */
|
|
if ((acl->acl_entry[i].ae_tag == entry_d->ae_tag) &&
|
|
(acl->acl_entry[i].ae_id == entry_d->ae_id)) {
|
|
/* ...shift the remaining entries... */
|
|
while (i < acl->acl_cnt - 1)
|
|
acl->acl_entry[i] = acl->acl_entry[++i];
|
|
/* ...drop the count and zero the unused entry... */
|
|
acl->acl_cnt--;
|
|
bzero(&acl->acl_entry[i], sizeof(struct acl_entry));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|