115 lines
3.3 KiB
C
115 lines
3.3 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 THE VOICES IN HIS HEAD 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 <sys/acl.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "setfacl.h"
|
|
|
|
/* set the appropriate mask the given ACL's */
|
|
int
|
|
set_acl_mask(acl_t *prev_acl, const char *filename)
|
|
{
|
|
acl_entry_t entry;
|
|
acl_t acl;
|
|
acl_tag_t tag;
|
|
int entry_id;
|
|
|
|
entry = NULL;
|
|
|
|
/*
|
|
* ... if a mask entry is specified, then the permissions of the mask
|
|
* entry in the resulting ACL shall be set to the permissions in the
|
|
* specified ACL mask entry.
|
|
*/
|
|
if (have_mask)
|
|
return (0);
|
|
|
|
acl = acl_dup(*prev_acl);
|
|
if (acl == NULL)
|
|
err(1, "%s: acl_dup() failed", filename);
|
|
|
|
if (n_flag == 0) {
|
|
/*
|
|
* If no mask entry is specified and the -n option is not
|
|
* specified, then the permissions of the resulting ACL mask
|
|
* entry shall be set to the union of the permissions
|
|
* associated with all entries which belong to the file group
|
|
* class in the resulting ACL
|
|
*/
|
|
if (acl_calc_mask(&acl)) {
|
|
warn("%s: acl_calc_mask() failed", filename);
|
|
acl_free(acl);
|
|
return (-1);
|
|
}
|
|
} else {
|
|
/*
|
|
* If no mask entry is specified and the -n option is
|
|
* specified, then the permissions of the resulting ACL
|
|
* mask entry shall remain unchanged ...
|
|
*/
|
|
|
|
entry_id = ACL_FIRST_ENTRY;
|
|
|
|
while (acl_get_entry(acl, entry_id, &entry) == 1) {
|
|
entry_id = ACL_NEXT_ENTRY;
|
|
if (acl_get_tag_type(entry, &tag) == -1)
|
|
err(1, "%s: acl_get_tag_type() failed",
|
|
filename);
|
|
|
|
if (tag == ACL_MASK) {
|
|
acl_free(acl);
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If no mask entry is specified, the -n option is specified,
|
|
* and no ACL mask entry exists in the ACL associated with the
|
|
* file, then write an error message to standard error and
|
|
* continue with the next file.
|
|
*/
|
|
warnx("%s: warning: no mask entry", filename);
|
|
acl_free(acl);
|
|
return (0);
|
|
}
|
|
|
|
acl_free(*prev_acl);
|
|
*prev_acl = acl_dup(acl);
|
|
acl_free(acl);
|
|
|
|
return (0);
|
|
}
|