posix1e/acl.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 <fcntl.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #include "aclvar.h"
  33
  34 acl_t
  35 acl_dup(acl_t acl)
  36 {
  37         struct _acl     *ap;
  38
  39         if (!_ACL_VALID_ACL(acl)) {
  40                 errno = EINVAL;
  41                 return(NULL);
  42         }
  43
  44         if ((ap = malloc(sizeof(*ap))) != NULL)
  45                 bcopy(acl, ap, sizeof(*ap));
  46         return(ap);
  47 }
  48
  49 int
  50 acl_free(void *obj)
  51 {
  52         /*
  53          * Without tracking the addresses of text buffers and qualifiers,
  54          * we can't validate the obj argument here at all.
  55          */
  56         if(obj != _FILESEC_REMOVE_ACL)
  57                 free(obj);
  58         return(0);
  59 }
  60
  61 acl_t
  62 acl_init(int count)
  63 {
  64         struct _acl     *ap;
  65
  66         /* validate count */
  67         if (count < 0) {
  68                 errno = EINVAL;
  69                 return(NULL);
  70         }
  71         if (count > ACL_MAX_ENTRIES) {
  72                 errno = ENOMEM;
  73                 return(NULL);
  74         }
  75
  76         if ((ap = malloc(sizeof (*ap))) != NULL) {
  77                 bzero(ap, sizeof(*ap));
  78                 ap->a_magic = _ACL_ACL_MAGIC;
  79                 ap->a_last_get = -1;
  80         }
  81         return(ap);
  82 }
  83
  84 int
  85 acl_valid(acl_t acl)
  86 {
  87         _ACL_VALIDATE_ACL(acl);
  88
  89         /* XXX */
  90         return(0);
  91 }
  92
  93 int
  94 acl_valid_fd_np(int fd, acl_type_t type, acl_t acl)
  95 {
  96         errno = ENOTSUP;        /* XXX */
  97         return(-1);
  98 }
  99
 100 int
 101 acl_valid_file_np(const char *path, acl_type_t type, acl_t acl)
 102 {
 103         errno = ENOTSUP;        /* XXX */
 104         return(-1);
 105 }
 106
 107 int
 108 acl_valid_link(const char *path, acl_type_t type, acl_t acl)
 109 {
 110         errno = ENOTSUP;        /* XXX */
 111         return(-1);
 112 }
 113
 114 /*
 115  * Not applicable; not supportedl
 116  */
 117 int
 118 acl_calc_mask(__unused acl_t *acl_p)
 119 {
 120         errno = ENOTSUP;
 121         return(-1);
 122 }