2 * Copyright (c) 2001 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 THE VOICES IN HIS HEAD BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/types.h>
40 * remove ACL entries from an ACL
43 remove_acl(acl_t acl, acl_t *prev_acl)
48 int carried_error, entry_id;
52 if (acl_type == ACL_TYPE_ACCESS)
53 acl_new = acl_dup(prev_acl[ACCESS_ACL]);
55 acl_new = acl_dup(prev_acl[DEFAULT_ACL]);
57 err(1, "acl_dup() failed");
59 tag = ACL_UNDEFINED_TAG;
61 /* find and delete the entry */
62 entry_id = ACL_FIRST_ENTRY;
63 while (acl_get_entry(acl, entry_id, &entry) == 1) {
64 entry_id = ACL_NEXT_ENTRY;
65 if (acl_get_tag_type(entry, &tag) == -1)
66 err(1, "acl_get_tag_type() failed");
69 if (acl_delete_entry(acl_new, entry) == -1) {
71 warnx("cannot remove non-existent acl entry");
75 if (acl_type == ACL_TYPE_ACCESS) {
76 acl_free(prev_acl[ACCESS_ACL]);
77 prev_acl[ACCESS_ACL] = acl_new;
79 acl_free(prev_acl[DEFAULT_ACL]);
80 prev_acl[DEFAULT_ACL] = acl_new;
90 * remove default entries
93 remove_default(acl_t *prev_acl)
97 acl_free(prev_acl[1]);
98 prev_acl[1] = acl_init(ACL_MAX_ENTRIES);
99 if (prev_acl[1] == NULL)
100 err(1, "acl_init() failed");
102 warn("cannot remove default ACL");
109 * remove extended entries
112 remove_ext(acl_t *prev_acl)
114 acl_t acl_new, acl_old;
115 acl_entry_t entry, entry_new;
118 int entry_id, have_mask_entry;
120 if (acl_type == ACL_TYPE_ACCESS)
121 acl_old = acl_dup(prev_acl[ACCESS_ACL]);
123 acl_old = acl_dup(prev_acl[DEFAULT_ACL]);
125 err(1, "acl_dup() failed");
128 acl_new = acl_init(ACL_MAX_ENTRIES);
130 err(1, "acl_init() failed");
131 tag = ACL_UNDEFINED_TAG;
133 /* only save the default user/group/other entries */
134 entry_id = ACL_FIRST_ENTRY;
135 while (acl_get_entry(acl_old, entry_id, &entry) == 1) {
136 entry_id = ACL_NEXT_ENTRY;
138 if (acl_get_tag_type(entry, &tag) == -1)
139 err(1, "acl_get_tag_type() failed");
145 if (acl_get_tag_type(entry, &tag) == -1)
146 err(1, "acl_get_tag_type() failed");
147 if (acl_get_permset(entry, &perm) == -1)
148 err(1, "acl_get_permset() failed");
149 if (acl_create_entry(&acl_new, &entry_new) == -1)
150 err(1, "acl_create_entry() failed");
151 if (acl_set_tag_type(entry_new, tag) == -1)
152 err(1, "acl_set_tag_type() failed");
153 if (acl_set_permset(entry_new, perm) == -1)
154 err(1, "acl_get_permset() failed");
155 if (acl_copy_entry(entry_new, entry) == -1)
156 err(1, "acl_copy_entry() failed");
165 if (have_mask_entry && n_flag == 0) {
166 if (acl_calc_mask(&acl_new) == -1)
167 err(1, "acl_calc_mask() failed");
172 if (acl_type == ACL_TYPE_ACCESS) {
173 acl_free(prev_acl[ACCESS_ACL]);
174 prev_acl[ACCESS_ACL] = acl_new;
176 acl_free(prev_acl[DEFAULT_ACL]);
177 prev_acl[DEFAULT_ACL] = acl_new;