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      1 /*-
      2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      3  *
      4  * Copyright (c) 2001-2002 Chris D. Faulhaber
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #if 0
     31 __FBSDID("$FreeBSD: head/lib/libc/posix1e/acl_copy.c 326193 2017-11-25 17:12:48Z pfg $");
     32 #else
     33 __RCSID("$NetBSD: acl_copy.c,v 1.2 2024/01/20 14:52:48 christos Exp $");
     34 #endif
     35 
     36 #include "namespace.h"
     37 #include <sys/types.h>
     38 #include <sys/acl.h>
     39 
     40 #include <errno.h>
     41 #include <string.h>
     42 
     43 #include "acl_support.h"
     44 
     45 /*
     46  * acl_copy_entry() (23.4.4): copy the contents of ACL entry src_d to
     47  * ACL entry dest_d
     48  */
     49 int
     50 acl_copy_entry(acl_entry_t dest_d, acl_entry_t src_d)
     51 {
     52 
     53 	if (src_d == NULL || dest_d == NULL || src_d == dest_d) {
     54 		errno = EINVAL;
     55 		return (-1);
     56 	}
     57 
     58 	/*
     59 	 * Can we brand the new entry the same as the source entry?
     60 	 */
     61 	if (!_entry_brand_may_be(dest_d, _entry_brand(src_d))) {
     62 		errno = EINVAL;
     63 		return (-1);
     64 	}
     65 
     66 	_entry_brand_as(dest_d, _entry_brand(src_d));
     67 
     68 	dest_d->ae_tag = src_d->ae_tag;
     69 	dest_d->ae_id = src_d->ae_id;
     70 	dest_d->ae_perm = src_d->ae_perm;
     71 	dest_d->ae_entry_type = src_d->ae_entry_type;
     72 	dest_d->ae_flags = src_d->ae_flags;
     73 
     74 	return (0);
     75 }
     76 
     77 ssize_t
     78 /*ARGSUSED*/
     79 acl_copy_ext(void *buf_p, acl_t acl, ssize_t size)
     80 {
     81 
     82 	errno = ENOSYS;
     83 	return (-1);
     84 }
     85 
     86 acl_t
     87 /*ARGSUSED*/
     88 acl_copy_int(const void *buf_p)
     89 {
     90 
     91 	errno = ENOSYS;
     92 	return (NULL);
     93 }
     94