posix1e/acl_perm.c

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <sys/appleapiopts.h>
  25 #include <sys/types.h>
  26 #include <sys/acl.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include "aclvar.h"
  32
  33 int
  34 acl_add_perm(acl_permset_t permset, acl_perm_t perm)
  35 {
  36         /* XXX validate perms */
  37         _ACL_VALIDATE_PERM(perm);
  38
  39         permset->ap_perms |= perm;
  40         return(0);
  41 }
  42
  43 int
  44 acl_clear_perms(acl_permset_t permset)
  45 {
  46         /* XXX validate perms */
  47
  48         permset->ap_perms = 0;
  49         return(0);
  50 }
  51
  52 int
  53 acl_delete_perm(acl_permset_t permset, acl_perm_t perm)
  54 {
  55         /* XXX validate perms */
  56         _ACL_VALIDATE_PERM(perm);
  57
  58         permset->ap_perms &= ~perm;
  59         return(0);
  60 }
  61
  62 int
  63 acl_get_perm_np(acl_permset_t permset, acl_perm_t perm)
  64 {
  65         _ACL_VALIDATE_PERM(perm);
  66
  67         return((perm & permset->ap_perms) ? 1 : 0);
  68 }
  69
  70 int
  71 acl_get_permset(acl_entry_t entry, acl_permset_t *permset_p)
  72 {
  73         _ACL_VALIDATE_ENTRY(entry);
  74
  75         *permset_p = (acl_permset_t)&entry->ae_perms;
  76         return(0);
  77 }
  78
  79 int
  80 acl_set_permset(acl_entry_t entry, acl_permset_t permset)
  81 {
  82         _ACL_VALIDATE_ENTRY(entry);
  83
  84         entry->ae_perms = permset->ap_perms;
  85         return(0);
  86 }