xref: /dflybsd-src/lib/libposix1e/acl_init.c (revision 86d7f5d305c6adaa56ff4582ece9859d73106103)
1*86d7f5d3SJohn Marino /*-
2*86d7f5d3SJohn Marino  * Copyright (c) 1999 Robert N. M. Watson
3*86d7f5d3SJohn Marino  * All rights reserved.
4*86d7f5d3SJohn Marino  *
5*86d7f5d3SJohn Marino  * Redistribution and use in source and binary forms, with or without
6*86d7f5d3SJohn Marino  * modification, are permitted provided that the following conditions
7*86d7f5d3SJohn Marino  * are met:
8*86d7f5d3SJohn Marino  * 1. Redistributions of source code must retain the above copyright
9*86d7f5d3SJohn Marino  *    notice, this list of conditions and the following disclaimer.
10*86d7f5d3SJohn Marino  * 2. Redistributions in binary form must reproduce the above copyright
11*86d7f5d3SJohn Marino  *    notice, this list of conditions and the following disclaimer in the
12*86d7f5d3SJohn Marino  *    documentation and/or other materials provided with the distribution.
13*86d7f5d3SJohn Marino  *
14*86d7f5d3SJohn Marino  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*86d7f5d3SJohn Marino  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*86d7f5d3SJohn Marino  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*86d7f5d3SJohn Marino  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*86d7f5d3SJohn Marino  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*86d7f5d3SJohn Marino  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*86d7f5d3SJohn Marino  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*86d7f5d3SJohn Marino  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*86d7f5d3SJohn Marino  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*86d7f5d3SJohn Marino  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*86d7f5d3SJohn Marino  * SUCH DAMAGE.
25*86d7f5d3SJohn Marino  *
26*86d7f5d3SJohn Marino  *$FreeBSD: src/lib/libposix1e/acl_init.c,v 1.3 2000/01/26 04:19:37 rwatson Exp $
27*86d7f5d3SJohn Marino  *$DragonFly: src/lib/libposix1e/acl_init.c,v 1.3 2005/08/04 17:27:09 drhodus Exp $
28*86d7f5d3SJohn Marino  */
29*86d7f5d3SJohn Marino /*
30*86d7f5d3SJohn Marino  * acl_init -- return a fresh acl structure
31*86d7f5d3SJohn Marino  * acl_dup -- duplicate an acl and return the new copy
32*86d7f5d3SJohn Marino  */
33*86d7f5d3SJohn Marino 
34*86d7f5d3SJohn Marino #include <sys/types.h>
35*86d7f5d3SJohn Marino #include <sys/acl.h>
36*86d7f5d3SJohn Marino #include <errno.h>
37*86d7f5d3SJohn Marino #include <stdlib.h>
38*86d7f5d3SJohn Marino #include <string.h>
39*86d7f5d3SJohn Marino 
40*86d7f5d3SJohn Marino acl_t
acl_init(int count)41*86d7f5d3SJohn Marino acl_init(int count)
42*86d7f5d3SJohn Marino {
43*86d7f5d3SJohn Marino 	struct acl	*acl;
44*86d7f5d3SJohn Marino 
45*86d7f5d3SJohn Marino 	if (count > ACL_MAX_ENTRIES) {
46*86d7f5d3SJohn Marino 		errno = ENOMEM;
47*86d7f5d3SJohn Marino 		return (0);
48*86d7f5d3SJohn Marino 	}
49*86d7f5d3SJohn Marino 
50*86d7f5d3SJohn Marino 	acl = (struct acl *) malloc(sizeof(struct acl));
51*86d7f5d3SJohn Marino 	bzero(acl, sizeof(struct acl));
52*86d7f5d3SJohn Marino 
53*86d7f5d3SJohn Marino 	return (acl);
54*86d7f5d3SJohn Marino }
55*86d7f5d3SJohn Marino 
56*86d7f5d3SJohn Marino acl_t
acl_dup(acl_t acl)57*86d7f5d3SJohn Marino acl_dup(acl_t acl)
58*86d7f5d3SJohn Marino {
59*86d7f5d3SJohn Marino 	struct acl	*acl_new;
60*86d7f5d3SJohn Marino 
61*86d7f5d3SJohn Marino 	acl_new = acl_init(ACL_MAX_ENTRIES);
62*86d7f5d3SJohn Marino 	if (!acl_new)
63*86d7f5d3SJohn Marino 		return(NULL);
64*86d7f5d3SJohn Marino 
65*86d7f5d3SJohn Marino 	*acl_new = *acl;
66*86d7f5d3SJohn Marino 
67*86d7f5d3SJohn Marino 	return(acl_new);
68*86d7f5d3SJohn Marino }
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