2 * Copyright (c) 2001-2002 Chris D. Faulhaber
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
41 /* set the appropriate mask the given ACL's */
43 set_acl_mask(acl_t *prev_acl, const char *filename)
53 * ... if a mask entry is specified, then the permissions of the mask
54 * entry in the resulting ACL shall be set to the permissions in the
55 * specified ACL mask entry.
60 acl = acl_dup(*prev_acl);
62 err(1, "%s: acl_dup() failed", filename);
66 * If no mask entry is specified and the -n option is not
67 * specified, then the permissions of the resulting ACL mask
68 * entry shall be set to the union of the permissions
69 * associated with all entries which belong to the file group
70 * class in the resulting ACL
72 if (acl_calc_mask(&acl)) {
73 warn("%s: acl_calc_mask() failed", filename);
79 * If no mask entry is specified and the -n option is
80 * specified, then the permissions of the resulting ACL
81 * mask entry shall remain unchanged ...
84 entry_id = ACL_FIRST_ENTRY;
86 while (acl_get_entry(acl, entry_id, &entry) == 1) {
87 entry_id = ACL_NEXT_ENTRY;
88 if (acl_get_tag_type(entry, &tag) == -1)
89 err(1, "%s: acl_get_tag_type() failed",
92 if (tag == ACL_MASK) {
99 * If no mask entry is specified, the -n option is specified,
100 * and no ACL mask entry exists in the ACL associated with the
101 * file, then write an error message to standard error and
102 * continue with the next file.
104 warnx("%s: warning: no mask entry", filename);
110 *prev_acl = acl_dup(acl);