posix1e/acl_flag.c

   1 /*
   2  * Copyright (c) 2004, 2010 Apple 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 #if __DARWIN_ACL_ENTRY_INHERITED != KAUTH_ACE_INHERITED
  34 #  error __DARWIN_ACL_ENTRY_INHERITED != KAUTH_ACE_INHERITED
  35 #endif
  36 #if __DARWIN_ACL_ENTRY_FILE_INHERIT != KAUTH_ACE_FILE_INHERIT
  37 #  error __DARWIN_ACL_ENTRY_FILE_INHERIT != KAUTH_ACE_FILE_INHERIT
  38 #endif
  39 #if __DARWIN_ACL_ENTRY_DIRECTORY_INHERIT != KAUTH_ACE_DIRECTORY_INHERIT
  40 #  error __DARWIN_ACL_ENTRY_DIRECTORY_INHERIT != KAUTH_ACE_DIRECTORY_INHERIT
  41 #endif
  42 #if __DARWIN_ACL_ENTRY_LIMIT_INHERIT != KAUTH_ACE_LIMIT_INHERIT
  43 #  error __DARWIN_ACL_ENTRY_LIMIT_INHERIT != KAUTH_ACE_LIMIT_INHERIT
  44 #endif
  45 #if __DARWIN_ACL_ENTRY_ONLY_INHERIT != KAUTH_ACE_ONLY_INHERIT
  46 #  error __DARWIN_ACL_ENTRY_ONLY_INHERIT != KAUTH_ACE_ONLY_INHERIT
  47 #endif
  48 #if __DARWIN_ACL_FLAG_NO_INHERIT != KAUTH_ACL_NO_INHERIT
  49 #  error __DARWIN_ACL_FLAG_NO_INHERIT != KAUTH_ACL_NO_INHERIT
  50 #endif
  51
  52 int
  53 acl_add_flag_np(acl_flagset_t flags, acl_flag_t flag)
  54 {
  55         /* XXX validate flags */
  56         /* XXX validate flag */
  57
  58         flags->af_flags |= flag;
  59         return(0);
  60 }
  61
  62 int
  63 acl_clear_flags_np(acl_flagset_t flags)
  64 {
  65         /* XXX validate flags */
  66
  67         flags->af_flags = 0;
  68         return(0);
  69 }
  70
  71 int
  72 acl_delete_flag_np(acl_flagset_t flags, acl_flag_t flag)
  73 {
  74         /* XXX validate flags */
  75         /* XXX validate flag */
  76
  77         flags->af_flags &= ~flag;
  78         return(0);
  79 }
  80
  81 int
  82 acl_get_flag_np(acl_flagset_t flagset, acl_flag_t flag)
  83 {
  84         /* XXX validate flags */
  85         /* XXX validate flag */
  86
  87         return((flag & flagset->af_flags) ? 1 : 0);
  88 }
  89
  90 int
  91 acl_get_flagset_np(void *obj, acl_flagset_t *flagset_p)
  92 {
  93         struct _acl             *ap = (struct _acl *)obj;
  94         struct _acl_entry       *ep = (struct _acl_entry *)obj;
  95
  96         if (_ACL_VALID_ACL(ap)) {
  97                 *flagset_p = (acl_flagset_t)&ap->a_flags;
  98         } else if (_ACL_VALID_ENTRY(ep)) {
  99                 *flagset_p = (acl_flagset_t)&ep->ae_flags;
 100         } else {
 101                 errno = EINVAL;
 102                 return(-1);
 103         }
 104         return(0);
 105 }
 106
 107 int
 108 acl_set_flagset_np(void *obj, acl_flagset_t flagset)
 109 {
 110         struct _acl             *ap = (struct _acl *)obj;
 111         struct _acl_entry       *ep = (struct _acl_entry *)obj;
 112
 113         if (_ACL_VALID_ACL(ap)) {
 114                 ap->a_flags = flagset->af_flags;
 115         } else if (_ACL_VALID_ENTRY(ep)) {
 116                 ep->ae_flags = flagset->af_flags;
 117         } else {
 118                 errno = EINVAL;
 119                 return(-1);
 120         }
 121
 122         return(0);
 123 }