1 /*- 2 * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 */ 26 /* 27 * acl_init -- return a fresh acl structure 28 * acl_dup -- duplicate an acl and return the new copy 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/types.h> 35 #include "namespace.h" 36 #include <sys/acl.h> 37 #include "un-namespace.h" 38 #include <errno.h> 39 #include <stdlib.h> 40 #include <string.h> 41 42 acl_t 43 acl_init(int count) 44 { 45 acl_t acl; 46 47 if (count > ACL_MAX_ENTRIES) { 48 errno = ENOMEM; 49 return (NULL); 50 } 51 if (count < 0) { 52 errno = EINVAL; 53 return (NULL); 54 } 55 56 acl = malloc(sizeof(struct acl_t_struct)); 57 if (acl != NULL) 58 bzero(acl, sizeof(struct acl_t_struct)); 59 60 return (acl); 61 } 62 63 acl_t 64 acl_dup(acl_t acl) 65 { 66 acl_t acl_new; 67 68 acl_new = acl_init(ACL_MAX_ENTRIES); 69 if (acl_new != NULL) { 70 *acl_new = *acl; 71 acl->ats_cur_entry = 0; 72 acl_new->ats_cur_entry = 0; 73 } 74 75 return (acl_new); 76 } 77